Extension Builders in West End

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.2 (19 reviews)

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

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 End

3683 Results

Sort by:

CONSTA Construction Limited
Rating: 4.6 out of 5
Extension Builder in West End
CONSTA Ltd - small construction company based in London, and characterises in flexibility to complete various jobs . There is list of different small or awkward completed jobs in our portfolio as well as more significant projects as loft conversions, extensions, full house reconstructions, new build and Passive House construction as well.
Get in touch
Latest review:
Extensions- 29 Aug 2021
Communicated well at the start with reasonable cost. work was done well but the finishing was not so great as expected. The end cost was very expensive. Charged by the hour, the team were very slow which was upsetting to see me pay for time where they sat around not doing much. Ensure to agree fixed price. Communication after job is poor, double glazing has warranty which now not being able to communicate with kostas having to pay to get things done that should be covered in warranty. Central heating give huge problems. Do not use for big jobs
professional polish builder(london)
Rating: 5 out of 5
Extension Builder in West End
I'm a builder (carpenter) with 19 years of experience in England. I do loft conversions and extensions - all building works. Carpentry and joinery is my main profession. I have a qualified bricklayer, electrician, plumber and others on my team who are happy to help. All works done by us coming with warranty and insurance.Dear potential client beware that we do not undertake structural building works without architectural drawings, structural engineer calculations etc. No time wasters please!
Get in touch
Latest review:
Extensions- 26 Apr 2018
Professional Polish builders (london) ltd,?this is a suitable name for this company. They built an extension and loft for me in the time standards set. They aren’t a cheap service but the professionalism of this boys goes beyond and above. I’ve seen a lot in my life and it was the third extension I designed for myself as I’m architect. It is hard to find an honest builder who will tell you the truth about what is waiting for you during the works. The job was done relatively quickly even when I changed my mind a few times and the weather this winter was cruel but Adam and Martin were always positive so do not believe any one who gives a fixed price and time - it’s impossible to do. Adam and Martin are fantastic organizers and skillful professional builders, his team are friendly,very funny and hard working guys. Open minded guys who will tell you straight on what things you can save money on and what not to. My dog has fallen in love with them. Safety and common sense is a priority to the crew. I would recommend these boys to everyone. thanks for your help and hard work!
T.M Construction.ltd
Rating: 5 out of 5
Extension Builder in West End
TM Construction.ltd, established in 2007, is a trusted building company specialising in extensions, loft conversion,refurbishments, and general construction projects. With over 15 years of experience, the company is known for its high-quality workmanship, reliability, and customer-focused approach. From groundwork and structural works to finishing touches, TM Construction delivers complete building solutions on time and within budget.
Get in touch
Latest review:
Roofing (Pitched)- 6 Mar 2026
Thomas was a pleasure to work with. Polite and accommodating. Would definitely hire him again.
The london Loft and Kitchen Company
Rating: 4.5 out of 5
Extension Builder in West End
We are a southwest London Based loft and kitchen extension specialist. Our working area is very small with 90% of our jobs in Wandsworth and any work outside this area is never more than a mile or two away. With over 15 years experience in this area we know inside and out how these properties were built so when it comes to structural alterations you couldn't be in safer hands.
Get in touch
Latest review:
Extensions- 16 May 2017
Initially apprehensive about using mybuilder, we found David easy going, clear and concise from the offset. The work carried out was to a high standard and any changes or questions that arose he was all to happy to answer. We found him to be pro-active in his approach, open and honest with how much items cost and sensible when agreeing monthly valuations. Both of us work in the construction industry and it is enjoyable and a breath of fresh air when you get to work with people as straight forward a David. We hope to do work with him again and would be happy to talk with anyone who is considering taking him on for additional work. Many thanks, Rob and Brom
Naksh construction ltd
Rating: 4.4 out of 5
Extension Builder in West End
We are a highly skilled, competent, and professional team of builders at Naksh Construction Ltd. We offer all the building services you could require, including additions, new construction, basement conversions, new residential or commercial construction and renovations of your existing bathrooms, kitchens and residences. Not only do we complete this task quickly and professionally, but we also take care to ensure that every job we complete is sophisticated, elegant, and meets your demands and specifications."
Get in touch
Latest review:
Extensions- 7 Apr 2025
Quotes were provided and the job was agreed upon. The project involved a full house restructuring and extension build. However, after several stages of work, communication with Jas was lost, and his co-worker took the lead on site. Several issues arose, such as recommending smart plumbing equipment for purchase, but their plumbers were unable to install it. The tiling, skirtings, and tiles were not completed. Tiles around the columns were cracked. After Jas's team abandoned the project, another plumber had to install all the remaining items. The job was left unfinished, and we had to find alternative contractors to complete it. Significant time and money were wasted due to persistent communication problems, failure to issue invoices, and numerous other issues. Eventually, Jas and his main labourer stopped responding and disappeared, ignoring phone calls and WhatsApp messages. Be aware of these potential issues.
Singh Delivers Ltd
Rating: 5 out of 5
Extension Builder in West End
I love to install carpets. Carpet isn’t just a floor but a lifestyle. I specialise in carpet fitting and maintenance. I tend to provide quality work for clients through years of experience. Every job requires a coordination between client and company, and this is how I work by coordinating with client because end of the day client would be looking at work and shouldn’t have any second thoughts.
Get in touch
Latest review:
Carpets & Lino- 3 Sep 2026
Mr Singh supplied and fitted the carpet for my bedroom. The carpet was as I had ordered upon arrival...he fitted the carpet within an hour and it was a neat and tidy job. However, time keeping was a problem but rectified later. He will return to fit a Lino for me. Mr Singh is very hardworking & cares about his clients. Thank you! 🙏
HOME DESIGN 4 YOU LTD
Rating: 4.8 out of 5
Extension Builder in West End
Working closely with our clients, Home Design 4 You provides a Single Point One-Stop, Innovative Architectural, Creative Interior - Bespoke Design, 3D Visualisation, Project management and Design & Build services for all types of residential development and Home Improvement projects.
Get in touch
Latest review:
Extensions- 19 Jun 2016
Neno is a very warm-hearted and genuine person. He gives his 100% to the job. He is also very prompt when it comes to communication and is always available by phone/text/email. He has a vast experience and good technical know-how and produced excellent plans and drawings. His quotes were very reasonable and offer excellent value for your hard earned money. Having been his client, I am genuinely inclined to believe he is a person who would never "rip off" his clients. He is a man of his word and does what he says. However, Neno's honesty and confidence can be a bit blunt at times. He can be quite “direct” with his opinions and this may rub off some people the wrong way, e.g. your local Council Planning officer may be an a**hole, but if you "confront" him, he will definitely not make things any easier for you- nevertheless, Neno dealt with all the Council red tape and followed up the Planning Permission Application to its conclusion. We finally got permission for extending the property much less than what we had expected initially- apparently our local Council (Hillingdon) has its own set of Draconian conservative rules that we were unaware of- but we have postponed the actual project work due to a recent change in personal circumstances. Summary: Based on my personal experience, I would DEFINITELY RECOMMEND Neno as a bona fide Tradesman on MyBuilder.com.
Plaza
Rating: 5 out of 5
Extension Builder in West End
With over 10 years of experience in the London construction market, our company provides a wide range of professional building and renovation services. We specialise primarily in all types of tiling work — whether for bathrooms, kitchens, gardens, or outdoor areas. In addition, we handle smaller tasks such as painting, repairs, and installations, as well as full-scale plumbing, electrical work, and complete refurbishments. We take great pride in our reliability, punctuality, and the high quality of our workmanship. Every project is carried out with exceptional attention to detail, ensuring cleanliness, precision, and a solid guarantee on all completed work. I’m are always happy to offer expert advice and support throughout the renovation process, including assistance with sourcing and delivering materials needed for the job. My works covers a wide range of projects — from full bathroom renovations to flooring, kitchen upgrades, exterior work, and bricklaying. Upon request, I can also provide client recommendations from previous projects to confirm the quality of service
Get in touch
Latest review:
Kitchen Fitting- 19 Aug 2026
David did an excellent job of installing my kitchen. He went above and beyond to make sure the installation deadline I had was met, and was very helpful and professional. I would highly recommend him.
The00company
Rating: 5 out of 5
Extension Builder in West End
Independent family business taking pride on our reputation for a unique combination of workmanship and service regardless of the size of project. My team and I are customer-oriented providing you with quality products built to your exact specifications in the specified time period. We provide a personalised service that involves you in all design and planning.
Get in touch
Latest review:
Khin and Senh did an amazing job redoing all the skirting in our home. Their quote was competitive and their workmanship outstanding. They helped us source the materials to our specification for a great price, handling all the delivery details and were happy to pick up any bits and bobs to get the job done. Each day they arrived on time and often worked late to accommodate the fact we had carpets coming in the following week. After each day tools and materials were squared away and they would send updates on progress. The final product was top quality and has nicely finished off our home as part of a large book of renovations. Finally any snags that I did notice they were happy to come back and address, I couldn’t have wished for any more from these guys. All the best !
Golden kye uk construction
No reviews yet
Extension Builder in West End
A construction company, reconstruction, repair and maintenance
Get in touch
Rayway limited
Rating: 5 out of 5
Extension Builder in West End
Over 15 years of experience in building and construction industry
Get in touch
Latest review:
Restoration & Refurbishment- 18 Feb 2021
Ray was an absolute professional. He fitted a new downstairs toilet which required a new soil pipe and associated groundwork as well as new stud walling to partition the space. He did most of the work himself, but brought in others for the pieces where he wanted an expert. He was flexible to small changes and was happy to take on additional work when unforeseen issues were discovered. The areas he had worked in were quickly cleaned before he left each day. Overall the work was completed to a good quality and at a reasonable price.
Orama Group Ltd
Rating: 5 out of 5
Extension Builder in West End
Orama is the family run Construction Company of choice, for large and small scale projects operating throughout London. Offering a bespoke service and setting new standards in the construction industry.
Get in touch
Latest review:
I originally contacted Joe from Orama to fit a new kitchen for me. When he came to give me a quote, I hadn't yet chosen what I wanted. He really took the time to make several recommendations and so I decided to go ahead with him to design my kitchen fully and fit it. The team were so easy to work with and most importantly respectful in my home! Their attention to detail is second to none. He really understood the style I liked in one conversation. The finish is flawless. I highly recommend them!!
INNOVATE BUILD GROUP LTD
Rating: 4.8 out of 5
Extension Builder in West End
I have over 20 years of experience in the construction industry. I am highly customer-focused and quality-driven, always aiming to complete jobs to the highest standards. My key goal is to ensure every project meets /exceeds customer expectations, delivering outstanding results every time.
Get in touch
Latest review:
Extensions- 7 Jun 2026
Zilvinas and the team at Innovate Builders were outstanding from start to finish. We hired them to build our two-storey side extension. Zilvinas was open, professional, and fully committed throughout the project. He was always available to answer questions, offer advice, and guide us through each stage of the build. His team worked hard and delivered a high-quality finish, all while keeping the project on schedule and within budget. As this was our first major building project, we relied heavily on Zilvinas's expertise and guidance. His knowledge, practical advice, and problem-solving skills were invaluable and made what could have been a stressful experience feel smooth and manageable. We are absolutely delighted with the result and would not hesitate to recommend Innovate Builder. As I said it was our first ever big project, we had heard many horror stories but are so grateful to have found Zilvinas and his team.
T C Construction Ltd
Rating: 5 out of 5
Extension Builder in West End
TC CONSTRUCTION is a company build on a new generation of builder's with new ideas and construction systems to provide a hight quality job's for the customers.
Get in touch
Latest review:
Kitchen Fitting- 22 Mar 2022
Tudor did a great job on our kitchen. He kept us informed on progress all the way through the job allowing time in the morning for questions and then getting on with the work during the day. At the end of each day he showed us and spoke with us about the excellent progress he had made. Very pleased with our lovely new kitchen which is clean, bright and spacious.
Vali colour
Rating: 5 out of 5
Extension Builder in West End
Hello my name is Vali , I have been working in the construction industry 20+ years in this time I have run a small business in Italy ,built houses in Romanian and I am currently working in London as a bricklayer .
Get in touch
Latest review:
Bricklaying- 1 Oct 2019
Excellent work on budget and time
Diti building & Construction Ltd
No reviews yet
Extension Builder in West End
Our company takes pride and joy in the high quality that we prove. We strive to achieve highest levels of work for our clients which has been the case for over 20 years of experience in construction. We do everything from loft conversion, extensions, full refurbs, bathroom, kitchens. We are proud to say that our work has spoken for us throughout the years and will be glad to show older projects of our quality works. So feel free to contact us for any questions or query’s, we’ll be happy to accommodate you and take your projects on. We have a full team builders , electricians, plumbers, carpenters, tilers, painters and we have our architects and engineers that we works closely with. We hope to take on your projects and give you an amazing experience throughout the process and give a top quality finish all all works taken on. TikTok name DBC Instagram name DITI Building & Construction Ltd Where you can see my jobs some of them
Get in touch

4.2

Top rated Extension Builders

Our Extension Builders in West End, are rated 4.2 out of 5 based on 19 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 End?

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 End 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 End who are available and interested can respond to your post.

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

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

Before getting started with your extension project, it’s important to have a clear budget in place. On average, extension builders in West End 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 End extension builders near you on MyBuilder. This allows you to compare what each quote covers and how much your West End home extension project is likely to cost.

Find extension builders in West End with MyBuilder

Hiring the right extension builder in West End 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 End extension builders. Once your job is live, we’ll share it with home extension builders in West End who can express their interest.

Step 2: Compare different extension builders in West End

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

Step 3: Hire West End extension builders with confidence

After gathering all the information and quotes from your chosen home extension builders in West End, 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 End extension builders are ready to help. Use MyBuilder today to find the right professional for your home extension.

What to ask a West End extension builder before hiring?

Before hiring an extension builder in West End or extension building company in West End, 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 End?

An extension builder in West End 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 End 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 End?

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 End 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 End 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 End

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

Yes, many extension builders in West End 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 End handle everything from design to construction?

Many West End 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 End help with materials and finishes?

Yes, most extension builders in West End 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.