Extension Builders in West Hampstead

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.2 (20 reviews)

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Some of our top rated extension builders in West Hampstead

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DRS construction
Rating: 5 out of 5
Extension Builder in West Hampstead
we are builders who construct the dreams of others. we have the experiece as cscs skill worker about 5 years now doing our own work contact us if you want to get good work experience
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Latest review:
Plastering- 23 Sep 2025
These guys are superb. Came to look at the job, quote & arrange a start date. Friendly and polite at all times. Knowledgeable about best techniques to use. Arrived early, worked till late to get the job done in good time and to great standard. Kept to their quoted price. Highly recommend
ANQ DESIGN & BUILD LIMITED
Rating: 4 out of 5
Extension Builder in West Hampstead
Hi there, We are team of civil/structural engineers, project managers and experienced builders being in the field for a decade now. We have full insurance policy for all our construction jobs. We provide the best of the services to our clients. So, you can totally rely on us about the services you will get. We are specialists in house renovation, extensions, Architectural services and planning permissions. We are new to mybuilder hence few review.
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Latest review:
Painting & Decorating- 17 Jun 2022
quality work for good price. Recommend to anyone looking for good work with affordable prices.
J & M loft conversion ltd
Rating: 5 out of 5
Extension Builder in West Hampstead
I’m a skilled landscaper with experience in designing and creating outdoor spaces that are both functional and visually appealing. From turfing and patios to fencing, planting, and garden maintenance, I take pride in delivering high-quality work with attention to detail. My goal is to transform outdoor areas into spaces homeowners can enjoy all year round. Reliable, hardworking, and customer-focused, I ensure every project is completed to the highest standard.
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Latest review:
Fencing- 26 Jun 2026
Very good, nice guy, good finished and cleaned, would recomment Jay.
Baatth construction ltd
Rating: 4.9 out of 5
Extension Builder in West Hampstead
All buildings work undertaken,extension ,loft conversion, plumbing, electrical, driveways
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Latest review:
Bathroom Fitting- 27 Dec 2021
Overall very Happy with the Job done.
GMG - Georgian Masters Group Limited
Rating: 5 out of 5
Extension Builder in West Hampstead
Hello. We are a new company, whose team consists of professionals with many years experience working both for residential and commercial property. You can boldly rely on the renovation of your home to our team, convince me the result will exceed expectations.
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Latest review:
Kitchen Fitting- 13 Oct 2024
Great communication, always available to clarify client questions, very diligent. Job well done and great finishing's. Thanks a lot Natella and team for all the effort
Home Comfort Design & Build Ltd
Rating: 4.9 out of 5
Extension Builder in West Hampstead
Home Comfort Design and Build Ltd have many years’ experience in both commercial and private property renovations specializing in Extensions, House refurbishment, Loft and Garage conversions, Driveways and Patios. We offer a full range of services from Architectural and Structural design to dealing with Council planning applications. Please get in touch for a friendly free-of-charge no obligation consultation. Many thanks, Graham
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Latest review:
Bathroom Fitting- 14 Nov 2019
We had our bathroom completely refurbished and Graham the owner was lovely. He came to give us the quote, visited whilst work was being undertaken to make sure everything was okay and came to make sure everything was finished to how we wanted it. The work carried out was of a high standard and whilst the bathroom work was being completed we also ended up getting our kitchen worktops done by Graham’s team. Chris was the one who carried out our work, he was very friendly and checked we were happy with the work he’d done before he left everyday. I would use Graham again for other work needed around the house.
RD PAINTING & RENOVATIONS LTD
No reviews yet
Extension Builder in West Hampstead
RD Painting & Renovation provides professional painting and renovation services for homes and businesses. We handle everything from interior and exterior painting to repairs and remodels, always focusing on quality, reliability, and customer satisfaction. Our goal is to make every space look its best and meet the unique needs of each client.
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Chic Deco LTD
Rating: 5 out of 5
Extension Builder in West Hampstead
Chic Deco is one of the best and affordable Design & Build company. Over 15 years experience allowed as to bring positive changes in many properties. We offer a full range of services from planning to project completion, covering all aspects of the building works. We are happy to meet and provide you with a friendly free consultation and estimate.
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Latest review:
Extensions- 3 Feb 2019
Tiberiu and his team are really nice people as they did such a wonderful job, and gave me great alternatives. Good skilled and hardworking people in his team. I have already recommended him to my friends and family and I will definitely use them again.
JJPeachey Carpentry
No reviews yet
Extension Builder in West Hampstead
A qualified carpenter, competent in all aspects of carpentry. Site and residential work experienced. Happy to look at any types of work.
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Mario Services
Rating: 5 out of 5
Extension Builder in West Hampstead
Mario & Alex Construction LTD specialise in construction and building services, complete property refurbishment, house extensions and loft conversions. Provides unmatched customer service. Our commitment to small,hudge integrity, providing the highest value and satisfied customers, has been the ingredient that has fueled our growth from the beginning. We ensure that all our work is professionally managed so that the result is of outstanding quality, cost-effective.
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Latest review:
Bathroom Fitting- 20 Jan 2023
We highly recommend Mario & his team. They fitted a new kitchen & bathroom to a really high standard within a short, timeframe. They work hard, are friendly, professional & honest, my neighbour even commented on how considerate they were! Upon first meeting Mario we were impressed by how organised he was. He arrived on time with the description we’d posted on my builder & went through it methodically. We had A LOT of questions! He answered all of them & didn’t rush us. We received a competitive quote within a day as promised. It included everything we discussed & he quickly answered our follow up questions. We wanted an accurate idea of the cost of electrical work & Mario arranged for his electrician to come & inspect/quote before we’d appointed Mario the job. Our kitchen & bathroom is complicated, with lots of difficult angles. Damp, unlevel floor, unlevel windows, a low ceiling were uncovered in the bathroom. Mario did well to identify solutions, giving us expert advice. Pipes were neatly chased into the wall. Underfloor heating & LVT, tiling, grouting & painting all done to a very professional finish. He kept us informed of progress, checked our preferences & was patient when we had supply delays, finding ways to ensure the job finished on time enabling us to move from our temporary accommodation back home in time for Christmas. He promptly fixed some minor issues after the job finished. We highly recommend Mario & would use him again.
Elgon Construction Limited
Rating: 5 out of 5
Extension Builder in West Hampstead
Be assured that your home is in good hands. We have provided building services for 18 years in London. The advantages of the company are a high quality of service and punctuality.
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Latest review:
Painting & Decorating- 17 Nov 2023
From connecting with Elgon to having the job done it was a smooth process. Elgon was professional friendly and put me at ease straight away. Will definitely use them again in future.
Iver Construction Limited
Rating: 5 out of 5
Extension Builder in West Hampstead
Iver Construction Ltd is a construction company, which is run by staff with over 15 years experience. We specialise in all your building needs. We work with you to build your dream home. We are happy to supply you with any references you may require.
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Latest review:
Extensions- 20 Jan 2014
We are so happy we chose to go with Iver construction to do the extension of our home. We shortlisted a few construction companies but liked the way that Mr Sanghani came over to explain their quote and went through how they would go about the job and was able to answer all the small questions I had about how I wanted things to be done. Very professional. The team was also very professional and very hard working. Everyday there would be some sort of noticeable work. they are a tidy team and would tidy any mess made. Obviously with all the dust that an extension can cause there was still some dust left but they cleaned up as much as possible which we appreciated. The communication with Mr Sanghani was very good. He would always pick up the phone when I called or call me back if he was busy no matter what time or day. After the job was completed when I had a few minor problems like cracks they came back to fix these . Even whilst building if there was something I did not like they would do their best to make changes. All in all very good, friendly and hard working builders. I have already recommended them to loads of my friends and family. Can not fault their construction skills.
RBS CONSTRUCTION UNIT
Rating: 5 out of 5
Extension Builder in West Hampstead
At RBS we specialise in commercial/domestic building work such as garden rooms, extensions, and renovation work. Whether the job is big or small, we take pride in the work we do and your best interest is always our priority. If you are in London or surrounding areas get in touch for a free quote, it would be our pleasure to help you be a step closer to having your dream home.
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Latest review:
Bricklaying- 6 Jul 2023
Very happy with the job done. Completed to a high standard.
Rose and Stone Limited
Rating: 5 out of 5
Extension Builder in West Hampstead
Whether it is an extension or large-scale scheme, we take dignity in taking the client’s vision through to delivering a quality project at the right time and cost. This is made possible by the company being excelled by a Chartered Architect with broad construction experience and a fine eye for detail. A valuable understanding of both traditional and modern techniques along with a firm grasp of materials enables us to provide the client with opportunities to make their concepts a reality.
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Latest review:
New Builds- 7 Jun 2022
Sohail worked closely with me on this project. Providing detailed costings, work schedules and build timelines. Filling my knowledge gaps with his extensive experience he was able to assist over and beyond what I expected from him. Unfortunately due to circumstances out of my control this development project didn’t go ahead. However when the next opportunity for a new build comes up I will definitely be using Rose and Stone. I did have another job going at the time where the other builder badly let me down and left me with a big problem on my hands…. Sohail and his team stepped in and took on the project. The team finished the job exceptionally well, which was a full on top to bottom conversion, some internal reconfigurations and with the addition of a loft and new downstairs WC. The workmanship and overall quality of the job was excellent. My wife is over the moon with the results, taking the house from a three bed one bathroom to a four bed 3 bathroom house. We would definitely recommend Rose and Stone for this type of extensive refurbishment/loft conversion work and look forward to working with them in the future on bigger development projects.
Dan’s Team Projects Ltd
No reviews yet
Extension Builder in West Hampstead
25 y of experience in building sector. Working as a multi trade person for companies now set up own . Always good communication and problem solving.
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EZ Design and Build
No reviews yet
Extension Builder in West Hampstead
EZ Design and Build offer a complete solution from initial concept through to high end / luxury finishes. We are a design and build contractor, and can assist you with planning and designing the project, getting Planning Permission and statutory approvals. We can get involved at various stages of the project, and we boast a portfolio of beautiful projects, ranging from basement conversions, developing blocks of apartments, commercial fit outs to residential home conversions and extensions.
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4.2

Top rated Extension Builders

Our Extension Builders in West Hampstead, are rated 4.2 out of 5 based on 20 reviews from customers like you.

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

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

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

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

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

Find extension builders in West Hampstead with MyBuilder

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

Step 2: Compare different extension builders in West Hampstead

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

Step 3: Hire West Hampstead extension builders with confidence

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

What to ask a West Hampstead extension builder before hiring?

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

An extension builder in West Hampstead 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 Hampstead 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 Hampstead?

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 Hampstead 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 Hampstead 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 Hampstead

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

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

Many West Hampstead 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 Hampstead help with materials and finishes?

Yes, most extension builders in West Hampstead 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.