Expert Builders in London

Professional builders for domestic and commercial construction, renovation, and extensions across London.

Get a Fast Quote

Trusted By

Rate 4.5 on Trustpilot

Fully Insured – Work Guranteed

Domestic & Commercial Building & Renovation Services

Looking for a reliable London builder? Our experienced team handles everything from extensions and loft conversions to full refurbishments and structural repairs.

10 % Discount on labour for Pimlico Plumber customers

If you’ve had a quote from Pimlico or you’re an existing customer we’ll beat their labour price

Valid for verified Pimlico quotes or customers. Labour discount only parts excluded

If it’s a building job, we can quote, plan, and complete the work for you.

You can also tell us the type of project you have and we can advise you on the best approach.

Building & Renovation

Call us for expert building work across London

Extensions & New Builds

Transform your property with our building team

Single and double-storey extensions
New build construction
Garage conversions
Basement conversions
Commercial fit-outs
Permitted development projects

Why Choose WEFIX London

Expert builders available across London
Fully insured and professionally accredited
Gas Safe registered engineers for any heating work
Clear pricing and no hidden charges
High quality workmanship and reliable fixes
Friendly service for homes and businesses

Valid for verified Pimlico quotes or customers. Labour discount only Paris excluded

Customer Reviews

      EXCELLENT  
   Based on 1425 reviews 
    
 
 
 
   
 
 
       Posted on Google  
   
   Lilli Lehmann 
 
 
 
 Trustindex verifies that the original source of the review is Google. Chris F. did a fantastic job again - even working in a last minute request that I had. Super happy on how efficient, calm and meticulous he works. From installing Lvt flooring, to sorting the sub-floor prep or skirting - Chris provides an excellent work.
  
 
      Posted on Google  
   
   Martin 
 
 
 
 Trustindex verifies that the original source of the review is Google. Cory came to fix my window/door, very efficient, would definitely recommend
  
 
      Posted on Google  
   
   Joe Hurrell 
 
 
 
 Trustindex verifies that the original source of the review is Google. Great service from Lee
  
 
      Posted on Google  
   
   John Mote 
 
 
 
 Trustindex verifies that the original source of the review is Google. All good. Fast and efficient. Marginally cheaper than Pimlico.
  
 
      Posted on Google  
   
   oscar 
 
 
 
 Trustindex verifies that the original source of the review is Google. Sam arrived and got
the job done quickly
  
 
      Posted on Google  
   
   Snehal Shah 
 
 
 
 Trustindex verifies that the original source of the review is Google. Sam has been excellent and handled all the jobs we required and above! Highly recommended!
  
 
      Posted on Google  
   
   Jo Smith 
 
 
 
 Trustindex verifies that the original source of the review is Google. Rob just came out for an emergency call out he fixed the broken tap offer some advice on some other plumbing issues.  We had an excellent service and he was so friendly and helpful.  Thank you
  
 
      Posted on Google  
   
   Aaron Gaide 
 
 
 
 Trustindex verifies that the original source of the review is Google. Luke was great. Great service all around, highly recommend.
  
 
      Posted on Google  
   
   Oliver Willcocks 
 
 
 
 Trustindex verifies that the original source of the review is Google. Trevor G was super efficient and repaired our floorboard within 15 minutes. Excellent service, competitive fees, very impressed. Highly recommend.

How It Works

Book now / Chat now

Start by calling 020 7889 1111 or using the online chat.

Call answered by real people (24/7)

Our London call centre answers every call. They’ll give you the plumber’s name, photo and vehicle registration.

Schedule your builder

An experienced builder arrives (typically within one hour for emergencies). They wear WEFIX uniform, carry photo ID and drive a liveried vehicle.

Invoice & Guarantee

After the job, you receive a detailed invoice with start/finish times and a breakdown of labour and materials. Work is guaranteed for 12 months.

Accredited Installers

Invoice / Transparent breakdown

You’ll get clear pricing before any work starts.No hidden charges. No surprises.

FAQs

How quickly can you attend in London?

We operate across London and aim to attend as quickly as possible. For smaller jobs we can often send a builder within an hour. Larger projects will be quoted and scheduled at a time that suits you. Contact us now and we’ll advise based on your specific requirements.

Are your builders fully insured?

Yes. All WeFix London builders carry full public liability insurance. We are fully accredited and comply with all relevant building regulations and health and safety standards.

Do you handle planning permission?

We can advise on permitted development rights and planning permission requirements for your project. For work that falls outside permitted development, we will guide you through the planning application process or work with your architect.

What types of building work do you carry out?

We cover a wide range of building work including house extensions, loft conversions, structural repairs, full refurbishments, brickwork, plastering, groundworks, garage conversions, and new builds. If you’re unsure whether we can help, just give us a call.

Excellent

Excellent customer reviews

100% ★★★★★348 reviews

Trustpilot - Excellent

Lilli Lehmann

Chris F. did a fantastic job again - even working in a last minute request that I had. Super happy on how efficient, calm and meticulous he works. From installing Lvt flooring, to sorting the sub-floor prep or skirting - Chris provides an excellent work.

Martin

Cory came to fix my window/door, very efficient, would definitely recommend

Joe Hurrell

Great service from Lee

John Mote

All good. Fast and efficient. Marginally cheaper than Pimlico.

oscar

Sam arrived and got the job done quickly

Snehal Shah

Sam has been excellent and handled all the jobs we required and above! Highly recommended!

Jo Smith

Rob just came out for an emergency call out he fixed the broken tap offer some advice on some other plumbing issues. We had an excellent service and he was so friendly and helpful. Thank you

Aaron Gaide

Luke was great. Great service all around, highly recommend.

Oliver Willcocks

Trevor G was super efficient and repaired our floorboard within 15 minutes. Excellent service, competitive fees, very impressed. Highly recommend.

Expert Builders in London

Professional builders for domestic and commercial construction, renovation, and extensions across London.

Get a Fast Quote

Domestic & Commercial Building & Renovation Services

Looking for a reliable London builder? Our experienced team handles everything from extensions and loft conversions to full refurbishments and structural repairs.

10 % Discount on labour for Pimlico Plumber customers

House extensions

Loft conversions

Structural repairs

Brickwork & pointing

Internal alterations

New builds

Plastering & rendering