Expert Builders in London

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

Get a Fast Quote

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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

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 18 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.

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

Groundworks & foundations