Choosing between home improvement companies uk homeowners can trust is often harder than choosing the kitchen, windows or bathroom itself. A glossy advert can make every company look perfect, but the real questions come later: Will the job finish on time? Is the installer qualified? What happens if something goes wrong? One useful place to begin is TrustMark, the UK Government-endorsed quality scheme for work carried out in and around the home. The safest choice is rarely based on the cheapest quote alone. It comes from checking the business, understanding the contract and knowing exactly what you are paying for.
What Are Home Improvement Companies in the UK?
Home improvement companies repair, replace, renovate or upgrade parts of a house.
Some businesses handle large projects from beginning to end.
They may design a kitchen, remove the old one, arrange plumbing and electrics, fit the new units and finish the room.
Other companies focus on only one area.
A window business may only sell and install windows and doors.
A roofing company may focus on roofs, gutters and related exterior work.
An energy installer may specialise in insulation, solar panels or heat pumps.
There are also large retailers that sell products and arrange installation through approved contractors.
The right company depends on what your home actually needs.
Why Is Choosing a Reliable UK Home Improvement Company So Important?
Because bad building work can become very expensive.
Citizens Advice said its Consumer Service received 36,534 complaints about home maintenance and improvements between July 2024 and June 2025. More than 5,000 of those cases involved scams or rogue traders. Roofing, large renovations, windows and doors, plumbing and fitted kitchens were among the biggest areas of complaint.
That does not mean most builders are dishonest.
Many tradespeople do excellent work.
But home improvement is an area where people often spend thousands of pounds before they fully understand what they are buying.
That makes careful checking essential.
What Types of Home Improvement Companies Can You Hire?
A general building or renovation company may manage several trades at the same time.
This can work well for extensions, loft conversions and full-home renovations.
A specialist installer may be better when the job is very focused.
For example, you may want a window company for replacement glazing, an MCS-certified installer for solar panels, or a Gas Safe engineer for boiler work.
Large retailers such as B&Q and Wickes also arrange installation services.
B&Q currently offers installation for kitchens, bathrooms and bedrooms through approved installers.
Wickes provides design and installation services for kitchens and bathrooms and says its approved installers are third-party contractors vetted by the company. Its current installation offer includes a two-year workmanship guarantee, subject to its terms.
So “home improvement company” can describe several very different business models.
How Should You Start Looking for Home Improvement Companies UK Wide?
Do not start with the company.
Start with the project.
Write down exactly what you need.
For example:
Instead of saying, “I want a new bathroom,” decide whether you need a new bath, shower, toilet, plumbing changes, floor, lighting, ventilation and tiling.
The clearer you are, the easier it becomes to compare prices.
Citizens Advice recommends checking whether permission is needed, finding suitable traders, getting quotes, checking insurance and using a written contract before work begins.
That may sound boring compared with choosing colours.
But it can save far more money.
How Many Quotes Should You Get?
Citizens Advice recommends trying to get at least three written quotes before choosing a contractor.
Three quotes give you something to compare.
Imagine one builder quotes £14,000.
Another says £15,500.
A third offers £7,000.
The £7,000 quote may be genuine.
But before celebrating, ask why it is so different.
Maybe it does not include VAT.
Maybe waste removal is missing.
Perhaps the materials are cheaper.
Maybe plumbing or electrical work is excluded.
A low number is only useful when it covers the same job.
What Is the Difference Between a Quote and an Estimate?
This is important.
Citizens Advice describes a written quote as an agreed price for the work, while an estimate is normally a less certain prediction of what the project may cost.
A quote should explain what is included.
It should also explain when the price can change.
For example, you may agree that extra cost is allowed only if hidden structural damage is found and you approve the additional work.
Do not rely only on a spoken price.
Get important numbers in writing.
Should You Always Choose the Cheapest Home Improvement Company?
No.
Cheap does not automatically mean bad.
Expensive does not automatically mean good.
The correct question is:
What am I getting for this price?
Compare the materials.
Compare the amount of labour.
Check whether rubbish removal is included.
Ask who handles plumbing and electrics.
Check whether decorating is included.
Look at the warranty.
Ask whether Building Regulations paperwork is included where needed.
A £20,000 quote that includes everything may actually be better value than a £15,000 quote that becomes £25,000 after extras appear.
What Is TrustMark?
TrustMark describes itself as the only UK Government-endorsed quality scheme for work carried out in or around the home.
It allows homeowners to search for registered businesses.
TrustMark says businesses within the scheme are checked against required standards and must follow relevant codes and customer-service requirements.
This does not mean you should stop doing your own checks.
A scheme membership is one useful piece of evidence.
You should still compare quotes, read contracts and check exactly which company will perform the work.
Should You Check Companies House?
Yes, when you are dealing with a limited company.
Companies House provides a free service where people can check company information, filing history and other public details.
This can help confirm that the business name you were given actually exists.
You can also see whether the company is active.
However, Companies House registration is not a quality award.
A company being registered does not prove that its building work is good.
Think of it as an identity check, not a workmanship guarantee.
Do UK Home Improvement Companies Need a Licence?
There is no single licence covering every type of home improvement business across the entire UK.
Requirements depend on the type of work.
Certain jobs require specialist registration or competent-person schemes.
For example, anyone carrying out regulated gas work must be properly registered with Gas Safe.
Gas Safe describes itself as the UK’s official register for gas engineers and businesses, and homeowners can check an engineer by name, business or registration details.
Electrical work, windows, heating and renewable-energy installations can also have their own certification routes.
So instead of asking, “Is this builder licensed?” ask:
“What qualifications or registrations are required for this exact job?”
What Is a Competent Person Scheme?
Competent person schemes allow registered tradespeople to self-certify certain types of building work as meeting Building Regulations instead of the homeowner making a separate building-control application for that work.
The Government says these schemes can cover different types of regulated work.
Registered installers must demonstrate relevant technical competence.
This can make some projects easier.
It can also provide useful paperwork when you later sell the home.
But not every project can be self-certified.
A major extension, for example, may still require normal building-control approval.
Do Home Improvements Need Planning Permission?
Some do.
Some do not.
Planning permission and Building Regulations are also not the same thing.
Government guidance says some alteration work may need Building Regulations approval even when planning permission is not required. Examples can include replacement windows and doors, heating systems, electrical work, bathrooms involving plumbing and roof work.
Many projects can fall within permitted development rights, depending on their size, location and design.
The rules also differ between England, Wales, Scotland and Northern Ireland.
So do not accept a salesperson saying, “You definitely don’t need permission,” without checking.
Your local planning authority or relevant national guidance should give the final answer.
What Is FENSA and Why Does It Matter for Windows?
FENSA is a government-authorised scheme that monitors Building Regulations compliance for replacement windows and doors.
A FENSA certificate can provide evidence that covered replacement windows or doors meet relevant Building Regulations and that the work has been registered with the local council.
It can also be useful when selling the property.
FENSA says certificates apply to certain replacement external windows, doors, roof windows and roof lights, but not to every type of building project.
So if you are comparing window companies, ask early:
“Will I receive the correct compliance certificate when the job is finished?”
What Should You Check When Hiring a Boiler or Gas Company?
Check the Gas Safe Register.
Do not rely on a logo shown on a van or website.
Gas Safe allows consumers to check an engineer and the types of work they are qualified to perform.
That second part matters.
A person may be registered for one type of gas work but not every type.
If you are replacing a boiler or moving gas appliances during a kitchen renovation, ask for the engineer’s Gas Safe details and check them.
Gas is not an area where the cheapest unverified worker is worth the risk.
What Should You Check for Solar Panels and Heat Pumps?
Look for an MCS-certified installer where MCS certification is relevant to the project or funding route.
MCS is a UK quality mark covering small-scale renewable technologies and maintains a directory of certified installers.
Its installer directory includes technologies such as solar PV, heat pumps and battery storage.
Certification can also be important for certain grants, incentives and export-payment arrangements.
Renewable-energy work is becoming a larger part of UK home improvement.
MCS reported that the number of certified installers increased during 2025 as small-scale renewable installations continued to grow.
Are There Home Energy Grants in 2026?
Yes, but eligibility depends on the scheme and household.
The Government’s 2026 Warm Homes Plan sets out major public investment for home upgrades, including support connected with heat pumps, solar panels, batteries and energy-efficiency improvements.
Citizens Advice also lists schemes that may help eligible households with insulation, heating and renewable upgrades. It notes that ECO4 is scheduled to close on 31 December 2026.
Be careful with companies that say:
“Everyone gets this completely free.”
Real schemes have eligibility rules.
Check the government or official scheme directly before signing finance or installation agreements.
Should You Pay a Large Deposit?
Be careful.
Citizens Advice recommends avoiding upfront payments where possible, paying in stages and trying to keep deposits low. Its current guidance says not to agree to a deposit of more than 25% when a deposit cannot reasonably be avoided.
There can be valid reasons for deposits.
A company may need to order custom windows.
A kitchen supplier may need to manufacture units.
Special materials may have to be purchased.
But paying the full amount before the project begins gives you very little protection if the company fails to return.
Always get a receipt.
Is Paying by Credit Card Safer?
It can sometimes give extra protection.
Citizens Advice says that when work costing between £100.01 and £30,000 is paid for by credit card, a Section 75 claim may be available if something goes wrong. This protection can sometimes apply even where only the deposit was paid on the credit card.
Debit-card payments may sometimes offer chargeback protection.
These protections have conditions, so they are not automatic refunds.
Still, Citizens Advice recommends using card payments where possible rather than cash.
A contractor insisting on large cash-only payments deserves extra checking.
Should Payments Be Made in Stages?
For larger renovations, stage payments can be sensible.
You might pay when agreed parts of the work are completed.
For example, one payment could follow structural work.
Another could come after first-fix plumbing and electrics.
A later payment might follow fitting.
The final payment can then be linked to completion.
Citizens Advice specifically recommends paying in stages because problems can then be corrected before the entire price has been paid.
The exact payment schedule should appear in your written contract.
What Should a Home Improvement Contract Include?
A contract should explain exactly what is being done.
Citizens Advice recommends covering timings, cleaning and waste removal, materials, equipment, subcontractors and payments.
Start and finish dates should be clear where possible.
The contract should also explain delays.
Who pays if extra materials are needed?
What happens if hidden damage is found?
Can subcontractors be used?
Who is responsible for permits or Building Regulations?
Who removes the skip?
Who repairs accidental damage?
Who owns materials before final payment?
The more you agree before work starts, the fewer arguments you are likely to have later.
Can You Cancel a Home Improvement Contract?
Sometimes.
Citizens Advice says consumers may have a 14-day cooling-off period in some situations, depending on how the contract was made. If you asked the trader to begin during that period, you may need to pay for work already completed.
Cancellation rules can depend on the contract and circumstances.
Do not assume every renovation agreement can be cancelled without cost.
Read the cancellation section before signing.
That is especially important after an in-home sales visit.
What Rights Do You Have if the Work Is Bad?
Citizens Advice says the Consumer Rights Act 2015 requires services to be carried out with reasonable care and skill.
If building work is poor, you may be able to ask the trader to correct it.
In some cases, a price reduction or other remedy may be appropriate.
Keep evidence.
Take photographs.
Keep emails.
Save the contract and quote.
Document what you believe is wrong.
If another qualified contractor examines the work, a written opinion can also be useful.
Do not immediately destroy or replace disputed work without considering whether you may need evidence.
Are B&Q and Wickes Home Improvement Companies?
They are mainly large home-improvement retailers, but both now provide significant installation services.
B&Q says its installation service covers kitchens, bathrooms and bedrooms and uses approved installers to coordinate projects.
Its parent company, Kingfisher, describes B&Q as the UK’s leading home-improvement and garden-living retailer, with products and services offered through more than 300 B&Q stores in the UK and Ireland.
Wickes also offers design and installation services.
Its current service says approved installers are third-party contractors and that customers can receive a two-year workmanship guarantee on qualifying installation work.
These services may appeal to homeowners who want one company coordinating design, products and fitting.
Is Wickes Good for Kitchen and Bathroom Installation?
Wickes currently offers both kitchen and bathroom design and installation.
Its kitchen service includes design support and installation, with local approved installers used for qualifying projects.
Its bathroom service says installers can manage areas including plumbing, fitting, gas, electrical work, lighting and tiling.
That can reduce the need to find several separate tradespeople.
However, always read the individual contract.
Ask which company or installer will actually attend your home.
Also check who is responsible if there is a disagreement about workmanship.
What Does B&Q Install?
B&Q currently advertises installation services for kitchens, bathrooms and bedrooms.
It says approved installers coordinate projects from start to finish.
Its planning service can also provide room designs and itemised quotations.
This can make the process simpler for homeowners who want products, design and fitting arranged through one retail brand.
But B&Q itself makes clear that approved installers are part of the installation model.
So homeowners should understand the relationship between the retailer and the person doing the work.
What Is Anglian Home Improvements?
Anglian is one of the UK’s best-known national home-improvement brands focused on products such as windows, doors and conservatories.
Its current website says it has more than 55 years of experience and that its products are made to measure in the UK.
Anglian Home Improvements is currently a trading name of ASHI Group Limited.
It is a different type of business from B&Q or Wickes.
Rather than being primarily a broad DIY retailer, Anglian focuses more strongly on manufactured and installed home-improvement products.
What Happened to Everest?
This is worth explaining because older “best home improvement companies UK” articles can now be confusing.
Everest 2020 Limited entered administration in April 2024.
In May 2024, Anglian Home Improvements completed a transaction to acquire Everest’s order book, brand, intellectual property and certain other assets.
That means old comparison articles presenting Anglian and the previous Everest business as completely separate major competitors may no longer reflect the current corporate picture.
This is one reason current research matters.
Home-improvement brands can change ownership.
Is a National Company Better Than a Local Builder?
Not automatically.
National companies can offer strong systems.
They may have call centres, finance, organised warranties, large supplier relationships and standard processes.
A good local contractor can offer different advantages.
You may speak directly with the owner.
The company may understand local homes extremely well.
It may have long relationships with nearby electricians, plumbers and building-control teams.
The name of the company matters less than the quality of the actual people working on your house.
A huge company can provide an excellent installer.
A small company can provide an excellent installer.
The opposite is also possible.
Should You Read Online Reviews?
Yes, but read them carefully.
Do not only look at the average star rating.
Read recent reviews.
Look for repeated complaints.
Do many customers mention missed appointments?
Do people complain about sales pressure?
Are warranty problems common?
Does the company respond professionally to unhappy customers?
A few negative reviews are normal for large businesses.
Patterns matter more.
Also remember that online reviews can sometimes be fake, incomplete or based on misunderstandings.
Use them as one part of your research, not the whole decision.
Should You Ask to See Previous Work?
Yes.
For major renovations, ask for examples of similar projects.
A company may be excellent at fitting kitchens but have very little experience building loft conversions.
Speak with past customers where possible.
Ask whether the final price stayed close to the original quote.
Ask how delays were handled.
Ask whether the workers kept the property reasonably tidy.
Most importantly, ask what happened after payment.
A company often shows its true quality when something needs fixing under warranty.
What Is an Insurance-Backed Guarantee?
A normal guarantee promises that the company will correct certain problems.
But what happens if the business stops trading?
An insurance-backed guarantee can sometimes provide protection even when the original installer no longer exists.
Citizens Advice recommends checking what a guarantee covers and whether it is insurance-backed.
This can be particularly relevant for windows, doors and some energy-upgrade schemes.
Do not assume the words “10-year guarantee” mean complete protection.
Read the actual terms.
Why Does Installer Insurance Matter?
A contractor should have appropriate insurance for the work.
Citizens Advice recommends checking both your own home insurance and the trader’s insurance before work begins.
Ask for evidence rather than simply accepting:
“Yes, we’re insured.”
Large building projects create risks.
Workers can be injured.
Water can escape.
Windows can be broken.
Neighbouring property can be damaged.
Insurance cannot prevent mistakes.
It helps manage the financial consequences when something serious happens.
What Are the Biggest Warning Signs of a Rogue Trader?
Pressure is one of the biggest warning signs.
Be careful when a salesperson says the price is available only today.
Be cautious when someone appears unexpectedly and claims your roof needs urgent work.
Watch for businesses that refuse written quotes.
Be concerned about people asking for the entire price in cash before starting.
Citizens Advice warns that unusually low quotations or a refusal to provide written information can be signs that a trader is unreliable or dishonest.
Good companies usually do not need to frighten you into signing.
Should You Trust Door-to-Door Home Improvement Sales?
Use extra caution.
A real company may use door-to-door sales.
But scammers also use this method.
Do not allow a stranger to decide that your roof, driveway, insulation or windows urgently need work and then immediately take payment.
Verify the company independently.
Check the business name yourself.
Do not use only the phone number printed on the leaflet.
Ask for time to think.
A trustworthy company should still exist tomorrow.
Are “Free Government Home Improvements” Always Real?
No.
Real government-supported energy schemes exist.
But scams also use government language.
The 2026 Warm Homes Plan includes public support for home energy improvements, but each programme has rules and eligibility requirements.
For energy work, check the actual scheme.
Check installer certification.
Check whether you are receiving a grant, loan or finance agreement.
A salesperson saying “the government pays everything” is not enough.
Read the paperwork before allowing work to begin.
Should You Use a Local TrustMark Business?
It can be a useful starting point.
TrustMark lets homeowners search for registered tradespeople and businesses.
However, registration should not replace normal checks.
Still get more than one quote.
Still read reviews.
Still understand the contract.
Still ask about the specific person doing the work.
Home improvement works best when several signs point in the same direction.
Registration.
Experience.
Good references.
Clear paperwork.
Fair pricing.
Professional communication.
Together, those give you a stronger picture.
How Can You Compare Home Improvement Companies Properly?
Do not compare only the total price.
Compare the exact materials.
One window company may quote for double glazing with one specification.
Another may include a different frame, locking system, glass specification and warranty.
Kitchen quotes can be even harder.
One may include appliances.
Another may not.
One includes removal of the old kitchen.
Another expects you to arrange it.
One includes flooring and decorating.
Another stops when the cabinets are fitted.
Ask each company to make the quote as clear as possible.
Only then does the final number become meaningful.
What Should You Ask Before Signing?
Ask who will actually do the work.
Ask whether subcontractors are involved.
Ask who supervises them.
Ask what happens if the project runs late.
Ask how extra work will be approved.
Ask who gets Building Regulations approval.
Ask who keeps the certificates.
Ask who removes waste.
Ask about product and workmanship guarantees.
Ask when each payment is due.
Ask what happens if you cancel.
If the answer is important, get it in writing.
Should You Use Finance Offered by a Home Improvement Company?
Finance can make large projects easier to pay for, but the monthly payment is not the only number that matters.
Check the interest rate.
Check the total amount repayable.
Check whether the rate can change.
Ask whether there are early-repayment charges.
Anglian says it acts as a credit broker rather than a lender and is authorised and regulated by the Financial Conduct Authority for relevant credit activity.
Wickes and B&Q also advertise finance options for qualifying projects.
Never allow attractive finance to make an unaffordable renovation look cheap.
You still pay the real cost.
What Should You Do Before the Work Starts?
Photograph the rooms or exterior areas.
Move valuable items.
Discuss access.
Ask where materials will be stored.
Talk about working hours.
Confirm whether workers need electricity or water.
Agree who will lock the property.
Discuss pets.
Make sure neighbours know if work may affect them.
Check the contract again.
Small conversations before work starts can prevent much larger arguments later.
What Should You Do While the Project Is Happening?
Stay involved.
You do not need to watch the tradesperson every minute.
But check progress regularly.
If something looks different from the agreed design, ask immediately.
Keep approved changes in writing.
Take photographs.
Save invoices and receipts.
Do not wait until the entire kitchen is finished to mention that the cupboards are the wrong colour.
Construction problems are usually cheaper to fix early.
Should You Pay the Final Amount Before Everything Is Finished?
Follow your contract, but stage payments should be linked to real progress.
Citizens Advice recommends staged payments so problems can be corrected before the entire price has been paid.
Before final completion, check the work.
Create a small list of unfinished items if needed.
Check doors.
Lights.
Taps.
Windows.
Cabinets.
Paint.
Seals.
Appliances.
Make sure you receive certificates and warranty documents that should come with the project.
The job is not only finished when the builder leaves.
It is finished when the agreed work and paperwork are complete.
What Are the Best Home Improvement Companies UK Homeowners Can Use?
There is no single company that is best for every house.
B&Q can be convenient for fitted kitchens, bathrooms and bedrooms.
Wickes offers design and installation for kitchens and bathrooms.
Anglian focuses heavily on windows, doors and related exterior products.
TrustMark can help homeowners search for registered local businesses.
MCS can help when looking for renewable-energy installers.
FENSA is useful when checking replacement-window and door installers.
Gas Safe is essential for regulated gas work.
The correct choice depends on the project.
Do not force one company to be “best” at every type of improvement.
FAQs About Home Improvement Companies UK
What are home improvement companies UK homeowners can use?
They include local builders, specialist contractors, national window and door companies, energy installers and major retailers offering installation services.
How do I find a trustworthy home improvement company in the UK?
Start with recognised schemes such as TrustMark where relevant, get at least three written quotes, check insurance and qualifications, read the contract and research the company before paying.
How many quotes should I get?
Citizens Advice recommends trying to obtain at least three written quotes.
Should I choose the cheapest builder?
Not automatically. Compare the work, materials, VAT, warranty, timeline and exclusions before choosing.
Should I check Companies House?
It can be useful for confirming details of a limited company and viewing its public filing information. It is not proof of good workmanship.
What is TrustMark?
TrustMark is the UK Government-endorsed quality scheme covering work carried out in and around homes.
Is B&Q a home improvement company?
B&Q is primarily a major retailer, but it currently offers installation services for kitchens, bathrooms and bedrooms through approved installers.
Does Wickes install kitchens?
Yes. Wickes offers kitchen design and installation and uses approved third-party installers for its installation service.
Does Wickes install bathrooms?
Yes. Wickes currently offers bathroom design and installation services.
What does Anglian Home Improvements do?
Anglian mainly provides products such as made-to-measure windows, doors and conservatories.
Is Everest still separate from Anglian?
Anglian acquired Everest 2020’s customer order book, brand, intellectual property and certain assets in May 2024 after Everest entered administration.
Do window installers need FENSA?
FENSA is one government-authorised route for certifying covered replacement window and door work under Building Regulations. Other compliant routes can also exist.
How do I check a gas engineer?
Use the official Gas Safe Register and confirm that the engineer is registered for the type of gas work required.
How do I find a solar-panel installer?
MCS provides a directory of certified installers for technologies including solar PV, heat pumps and battery storage.
Should I pay a large deposit?
Citizens Advice says to avoid upfront payments where possible and recommends trying not to pay more than 25% as a deposit when one is needed.
Is it safer to pay by credit card?
Credit-card payments can sometimes provide Section 75 protection on qualifying purchases between £100.01 and £30,000. Conditions apply.
Do I need a written contract?
Yes, particularly for significant work. Citizens Advice recommends written agreements covering important details such as materials, timing, subcontractors and payment.
What if the building work is badly done?
The Consumer Rights Act 2015 requires services to be carried out with reasonable care and skill. Citizens Advice explains that consumers may be able to ask for poor work to be corrected or seek another remedy.
Do all home improvements need planning permission?
No. Some may fall within permitted development, while others require planning permission or Building Regulations approval. The rules also vary across the UK.
Are government home-energy grants available in 2026?
Yes, several support routes exist, but eligibility varies. The Warm Homes Plan and schemes listed by Citizens Advice cover different types of energy improvements and households.
Final Thoughts
Finding the right home improvement companies uk homeowners can rely on is not really about finding the most famous name.
It is about reducing risk.
You may be giving a company access to your home.
You may be handing over thousands of pounds.
You may also be trusting that its work keeps your family warm, dry and safe for many years.
That deserves careful checking.
The scale of complaints shows why this matters.
Citizens Advice received more than 36,000 complaints about home maintenance and improvements in just one recent 12-month period, with more than 5,000 involving scams or rogue traders.
Start slowly.
Decide exactly what you need.
Check whether planning permission or Building Regulations apply.
Look for the correct scheme or qualification.
For gas work, check Gas Safe.
For eligible windows and doors, understand FENSA or the other compliance route being used.
For renewables, check MCS where relevant.
For wider home-improvement work, TrustMark can be a useful place to start looking.
Then compare the companies.
Get several written quotes.
Do not rely on spoken promises.
Do not allow a salesperson to rush you.
Understand deposits.
Pay in stages when appropriate.
Keep paperwork.
And make sure the warranty is more than a nice sentence in a brochure.
Large names can make some projects easier.
B&Q and Wickes can coordinate design, products and installation for certain rooms.
Anglian remains a major national option for products such as windows and doors.
But local contractors should not be ignored.
A skilled local builder with strong references, clear insurance, suitable qualifications and years of reliable work may be a much better choice for your particular house than a national brand.
The best company is the one that can clearly answer three simple questions:
What exactly are you going to do?
What exactly will I pay?
And what happens if something goes wrong?
If those answers are clear before work begins, you are already in a much stronger position.
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