Extension builders in West London

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.5 (22 reviews)

Easily find verified West London Extension Builders. Just post your job to get quotes from MyBuilder's Extension Builders in West London.

Select a service

How it works

Post your job for free

Tell us about your job, and we’ll alert suitable tradespeople in your area. It’s simple and free.

Tradespeople respond

Once your job is posted, you’ll get responses from interested tradespeople through the website.

Review profiles and choose

Browse profiles, work history, and feedback, then choose who you wish to share your details with.

Some of our top rated extension builders in West London

3758 Results

Sort by:

Bujar Vata
Rating: 5 out of 5
Extension Builder in West London
I am in the building business for 15 years I have worked all around London specially in the City I have registered myself on Mybuilders.com so I can get job around my area.
Get in touch
Latest review:
Tiling- 7 Jun 2026
Amazing job and a brilliant team of tradespersons. An excellent job of the herringbone tile flooring with underfloor electric heating for the whole of my downstairs. The wall panels also complemented the flooring and were installed perfectly. Well done to Bujar and his team!
Project-Wise
Rating: 5 out of 5
Extension Builder in West London
We offer a friendly reliable service that is second to none and can put you in contact lots of past clients who will give us glowing references on request. I have spent 30 years in the building industry, a time served bricklayer who has gained a very good knowledge of all aspects involved and trade requirements. This is why I offer a service you can rely on and guarantee all our work, which is carried out to the highest standard.
Get in touch
Latest review:
Extensions- 6 Jan 2016
Dave has done excellent work at a fair price. His communication is excellent and he kept me informed of everything going on at all times. I would happily hire Dave again.
M & M ROOFING AND LOFTS LIMITED
Rating: 5 out of 5
Extension Builder in West London
We design for life, as well as style. That's why clients have trusted Mew developments for the past decade. We cover all aspects of the building trade quality is at the heart off everything we do. All of our tradesmen are passionate about creating solutions that are comfortable and useful. They are all individually trained to meet our exacting standards and, more importantly, yours.
Get in touch
Latest review:
Extensions- 22 Oct 2018
Choosing MM builders was the best decision we could have made. Initial meetings: They took time to ensure they understand our work. They never complicated matters nor tried to hide things in any fine print and provided us with a estimated schedule and explained we would be kept up to date at all stages. Works: Their knowledge and work ethic is amazing and is reflected in their work. They gave us confidence and built trust very quickly. Always willing to go the extra mile and used their expertise to help us rectify issues or make suggestions in areas we would have never noticed ot thought of. Sam, Ross, Bill & Harry were so pleasant to have around the house. They were very conscious of the 3 young children in the house of which one has additional needs. They minimised disruption which is very difficult when doing major work in a areas and were always friendly and polite. We had no issues in having them inside our property which is very important when completing works taking just over 5 months. They work with specialist tradesman (tiler, plasterer, etc.) who are equally good at their trades. MM were very professional when it came to liasing with Building Control and made sure they were involved and visited at all key points. The aftercare we received was as good as we had received throughout the process. I have no hesitation in recommending MM for any building works. If I was to ever undertake any works in the future, it would be by them and only them.
QUOTRIX CONTRACTORS & ENGINEERS LTD
Rating: 5 out of 5
Extension Builder in West London
1. Design and Planning; 2. Development of residential & commercial buildings; 3. Refurbishment & Renovation of domestic building projects, and 4. Any other types of building works including extensions and conversions.
Get in touch
Latest review:
Kitchen Fitting- 4 Aug 2020
Quotrix contractors did a fantastic job of kitchen refurbishment. Great friendly service by all of the team, from the sales through to installation. Brilliant job, all round!
ArchiBuild London Ltd
No reviews yet
Extension Builder in West London
All kind of Building work including bespoke joinery, specialising on private property.
Get in touch
Softwood Beech Ltd
No reviews yet
Extension Builder in West London
Softwood Beech, a reputable company based in London. We pride ourselves on our team of highly experienced carpenters who specialise in various aspects of woodworking. From constructing and erecting to installing and renovating, we handle projects of all sizes with expertise and precision. Our services encompass a wide range of wood structures, including everything from bespoke kitchen cabinets to comprehensive building frameworks.
Get in touch
Neli Limited
Rating: 4.6 out of 5
Extension Builder in West London
Neli limited builder’s are a company based in London with over 10 years of experience in our trade, We cover a whole range of jobs including: • Slabbing ( all types ) • Astro turf • Turfing • Decking • Fencing • Block paving Thanks Neli
Get in touch
Latest review:
Landscaping- 28 Oct 2026
Neli took over our patio project after another builder, who claimed to have over 20 years of experience and excellent five star reviews, left us with very poor workmanship. Neli stepped in and redid the patio to the agreed specifications. The only downside was that the work took a few weeks longer than expected for various reasons. However, the patio has now been completed as agreed, and I’m happy with the final result. I appreciate Neli taking on a job that another builder had left in such a poor state and would recommend him.
Embury ltd
No reviews yet
Extension Builder in West London
Embury Ltd | Design, Build & Renovation Embury Ltd is an established, family-run Design & Build company delivering high-quality residential and commercial projects across South West London. Our team brings over 30 years of industry experience, combining skilled workmanship with hands-on project management. From complete property refurbishments and extensions to kitchens, bathrooms and bespoke joinery, we help clients create spaces that look good, work well and are built to last. Our services We undertake home renovations, extensions, loft conversions and structural alterations, alongside kitchen and bathroom refurbishments, bespoke joinery and fitted furniture, roofing, flooring and decorating. We also coordinate the plumbing and electrical works needed to bring a project together. Whether you need a complete design-and-build service or already have plans and require an experienced team to carry out the work, we can support your project from the early stages through to the final finish. We welcome enquiries for both larger projects and smaller, clearly defined building works. Our approach We take the time to understand your requirements, priorities and budget before agreeing the scope of work. Our focus is on clear quotations, practical advice and careful coordination, so you understand what is included and how the work will progress. As a family-run business, we value straightforward communication and a personal approach. We aim to keep you informed throughout, treat your property with care and minimise disruption wherever possible. Attention to detail matters to us—not just in the finished result, but in how the project is managed along the way. We are ISO certified and SafeContractor approved, reflecting our commitment to quality management, professional working practices and health and safety. Working across South West London We regularly work throughout Richmond, Barnes, East Sheen, Putney, Chiswick, Wimbledon and the surrounding areas, undertaking projects for homeowners and commercial clients. Contact us through MyBuilder to discuss your plans and arrange an initial call or site visit.
Get in touch
Fire Safety Works Limited
Rating: 5 out of 5
Extension Builder in West London
Lofts ,extension, Full refurbishment plastering Painting and decorating wallpaper and much more on commercial and domestic properties 12 years of experience
Get in touch
Latest review:
Painting & Decorating- 4 Jul 2017
Andi and his team did a fantastic job including removal of wallpapers, skimming and repainting walls and ceilings in no time.... the team worked wonders day and night handing back the property ahead of our move in day!! Andi is easy to talk to, extremely hardworking, keeps his promise and does it all with a smile! I wish I was like that at work when my boss gives me job :) Very pleased we hired Andi
FERARU GROUP BUILDERS LTD
Rating: 4.7 out of 5
Extension Builder in West London
I've worked in the UK for 8years now and I do my job to a high standard.
Get in touch
Latest review:
Extensions- 15 Jun 2024
My advice is avoid. Poor communication Poor workmanship Poor quality finish Create 'issues' during build to make you pay more than quoted Left project incomplete We pursued through the Court and won the case, but of course he is unable to pay, so we are pursing further through the Court. He will respond to the review with some excuse, but there is absoultley no excuse for poor workmanship and quality. Happy to share pictures and videos on request.
Civiltech
No reviews yet
Extension Builder in West London
We pride ourselves for delivering work collaboratively to a high standard, in the agreed time frame and budget with full transparency and safely.
Get in touch
NSL Sons & Co
No reviews yet
Extension Builder in West London
NSL Sons and Co – Expert handyman and repair services you can trust. Fast, reliable, and high-quality work for every home and business.
Get in touch
Cheam Building Contractors
Rating: 4.6 out of 5
Extension Builder in West London
Fully qualified builder with over 25 years experience of building in London and Surrey,fully insured with competitive rates.multi tradesman with extensive knowledge on all aspects of building work.
Get in touch
Latest review:
Extensions- 18 Dec 2019
What a wonderful extension Dan has built for my family and I! Everyone who visits us comments on how lovely it looks - we are extremely happy! From the moment I spoke/met with Dan I knew he would be the builder I would assign for this project. He was friendly, knowledgeable and spent time explaining the work which he would conduct. Dan and his team were always on time and worked hard all day. As promised, Dan completed the job on time and to budget. As with any build, we did encounter some issues, although Dan resolved these without any problems. I would 100% recommend Dan and his team! Give them a try, you'll be pleasantly surprised! Thank you Dan and co.
Archiiverse limited
No reviews yet
Extension Builder in West London
Creating Beautiful homes in London Archiiverse Design & Build is your complete building solution, from extensions, loft conversions, full renovations to complete new builds from the ground up . We pride ourselves on our knowledge and client focus which makes us stand out from the crowd. We know this can be a very stressful process from the start until completion, that's why we at Archiiverse take a holistic approach to ensuring that customer satisfaction is paramount. We have team of architect designers and professional to produce beautiful, functional structures. Call us today to discuss your project with Archiiverse. We look forward to hearing from you. Services Provided Accessible Design, Basement Conversion, Basement Waterproofing, Brickwork, Building Conservation, Complete Kitchen Renovation, Conservatory Design & Installation, Custom Build Homes, Eco Homes, Floor Plans, Garage Building, Home Renovation, House Extensions, House Restoration, Kitchen Fitting, Loft Conversion, New Home Build, Passive Houses, Prefab Home Extensions, Prefab Homes, Project Management, Shed Design & Construction, Sustainable Design, Tiny House Building, Custom Build Home Areas Served London, Clapham, Fulham, Balham, Chiswick, Hammersmith, Acton, Ealing, Kensington, Greater London, West London, Hampstead, Regents Park, Swiss Cottage, Turnbridge Wells, Cheshire, Richmond, Kingston upon Thames, Wandsworth, Harrow, Bromley, Brixton, , Camden, Kew, Battersea, Angel, Shoreditch, Dalston, Holland Park, Finsbury Park, St John's Wood, Shepherds Bush, Wimbledon, Greenwich, Dulwich, Muswell Hill, Crouch End, Belsize Park, Kent, UK, Slough, Maidenhead, Berkhamsted, watford, Hemel Hempstead, Farnham I look forward to working with you and turning your vision into reality. Feel free to reach out with any questions or to schedule a consultation. Let’s create something amazing together!
Get in touch
LRJ Construction & Maintenance Ltd
No reviews yet
Extension Builder in West London
A Construction & Maintenance company with capabilities of all types of building work that is keen to carry out small to medium size projects with a strong passion to deliver a service that extends over and above the expectations of a client, providing a vast knowledge of construction techniques.
Get in touch
Spekbilt Limited
New on MyBuilder
Extension Builder in West London
Spekbilt Limited, alongside its partners, is a building contractor specialising in high-quality residential conversions, home extensions, structural alterations, and full internal refurbishments. We bring commercial-grade precision, safety, and project management to private domestic projects. Whether you are looking to execute a loft conversion, garage conversion, open-plan structural knockout, or complete luxury home renovation, our experienced site teams deliver exceptional craftsmanship from start to finish. Why choose Spekbilt? • Total Structural Expertise: Specialists in RSJ steel installation, load-bearing removals, wall reconfigurations, and space optimization. • Full Building Regulations Compliance: Fully versed in UK Building Control requirements, thermal efficiency standards, acoustic insulation, and fire safety. • Turnkey Project Management: Complete care from initial site setup to first/second-fix carpentry, plastering, electrical systems, kitchens, and bathrooms. • Clear Communication & Reliability: We work transparently alongside homeowners to ensure projects stay on schedule, within budget, and built to exact specifications.
Get in touch

4.5

Top rated Extension Builders

Our Extension Builders in West London, are rated 4.5 out of 5 based on 22 reviews from customers like you.

Quality screening

Easily find verified local tradespeople. Just post your job to get quotes from tradespeople near you across the UK.

What types of services are offered by local extension builders in West London?

Building an extension is a major milestone for any home. It’s not just about adding extra space, it’s a big step that can transform how you live day to day, opening up new possibilities for comfort, lifestyle, and family needs.

This is why it’s so important to find the right extension builders in West London for you. They can help with a variety of tasks and projects, including:

Extending your home with an extra room
Two+ storey extensions
Adding partition walls to create more rooms
Building annexes or external structures

To find the right extension builder near you, simply post your job on MyBuilder. Explain the type of help you’re looking for, and then home extension builders in West London who are available and interested can respond to your post.

Browse profiles, read customer reviews and get quotes from your chosen West London extension builders, all before you decide who to hire.

What are the hourly rates of extension builders in West London?

Before getting started with your extension project, it’s important to have a clear budget in place. On average, extension builders in West London will charge between £16 and £42 per hour.

Single-storey rear extensions cost between £20,000 and £60,000 depending on size and finish.
The cost of double-storey extensions, which add more space and value, can range from £100,000 to over £170,000.
Larger wrap-around extensions that combine multiple extension types can range from £40,000 to over £120,000.

The cost of an extension will vary depending on your property. For instance, extending in certain areas may require structural adjustments to ensure stability, which can increase your material and labour costs.

To get an accurate price for your home extension, request detailed quotes from several West London extension builders near you on MyBuilder. This allows you to compare what each quote covers and how much your West London home extension project is likely to cost.

Find extension builders in West London with MyBuilder

Hiring the right extension builder in West London with MyBuilder couldn’t be easier. Just follow these simple steps:

Step 1: Post your extension project on MyBuilder

Whether you’re planning a single-storey extension, a loft conversion, or adding a new room, post your job on MyBuilder to find local West London extension builders. Once your job is live, we’ll share it with home extension builders in West London who can express their interest.

Step 2: Compare different extension builders in West London

When you start receiving interest, review profiles of local West London extension builders, check their previous work, and read real customer reviews. Ask about timelines, materials, and request detailed quotes.

Step 3: Hire West London extension builders with confidence

After gathering all the information and quotes from your chosen home extension builders in West London, compare their experience, guarantees, and costs before choosing who to hire.

You’ll also have confidence knowing that every tradesperson on MyBuilder is verified through several checks, including:

ID verification: When a tradesperson joins MyBuilder, we ask for a valid ID, such as a passport, ID card, or eIDAS certificate.
Company verification: For tradespeople operating under a company, we make sure every tradesperson has a registered business.

Did you know? Our continuous monitoring and complaints process ensures that tradespeople who don’t meet our standards are promptly removed from MyBuilder’s platform.

West London extension builders are ready to help. Use MyBuilder today to find the right professional for your home extension.

What to ask a West London extension builder before hiring?

Before hiring an extension builder in West London or extension building company in West London, ask a few key questions to make sure you’re choosing the right professional for your home extension project.

What qualifications and experience do you have as an extension builder in West London?

An extension builder in West London should have a strong track record with similar projects and relevant building qualifications or trade memberships, such as the Federation of Master Builders (FMB) or TrustMark.

Will my home extension meet all building regulations and planning requirements?

Your West London extension builder should ensure the project complies with Building Regulations and, where necessary, handle or assist with planning permissions. Ask how they manage building control inspections and what documentation you’ll receive once the project is complete.

What experience do you have with similar extensions in West London?

Ask to see examples of their previous work, or view examples of their work on MyBuilder. Ideally projects similar to yours in scale and design. This helps you assess the West London extension builder’s ability to deliver a result that meets your expectations.

How long will the extension take to complete?

Extension project timelines can vary depending on size, complexity, and weather. A typical single-storey extension might take around 8 - 12 weeks. Request a detailed schedule so you know what to expect and when key milestones will be reached.

Do you offer a guarantee for your work? Most West London extension builders offer a guarantee or warranty on their work, often between 1 and 10 years depending on the project and materials used. This gives you assurance that any issues will be resolved after completion.

If you still have questions about the professional you are looking to hire, we have a full detailed guide on hiring the right builder here.

FAQ: Common questions about home extensions in West London

Can an extension builder in West London help with planning permission?

Yes, many extension builders in West London can guide you through the planning process. They can help prepare drawings, advise on local requirements, and liaise with your local council to ensure your project meets all necessary regulations.

Can an extension builder in West London handle everything from design to construction?

Many West London extension builders offer full design-and-build services, managing both the architectural planning and construction stages. Ask your builder whether they can provide a complete package or if you’ll need to hire an architect or designer separately.

Will an extension builder in West London help with materials and finishes?

Yes, most extension builders in West London can source materials and offer advice on finishes that suit your design and budget. You can also choose to supply certain materials yourself, just make sure this is agreed upon before work starts.