Extension Builders in West Hampstead

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4 (17 reviews)

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

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 Hampstead

3535 Results

Sort by:

ANACOND LTD
Rating: 5 out of 5
Extension Builder in West Hampstead
Throughout the years in construction my father has gathered well balanced team with broad range of experience in every aspect of the job. After acquiring my engineering degree and some experience elsewhere, I re-joined my father once again to provide the service we are both proud of. Our background and experience in construction, design and engineering allows us to provide our clients with high quality service and ensure smooth work-flow of each project. Attention to detail is the key!
Get in touch
Latest review:
Ground floor rear extension and Loft conversion. First and Second fix works including drainage, structural (block work, wood work and steel work) electrical, plumbing, plastering and tiling. All works completed to a very high standard, we found Arnolda's and his team very helpful, thoughtful and pro-active nothing seemed to be too much trouble for him, we are more than happy with AnA's Construction Developments.
Leka constriction
No reviews yet
Extension Builder in West Hampstead
Hello.. im Leka construction ltd My services are: new building,extensions,tiles,bathrooms,painting and decoration,refurbishment etc
Get in touch
Uk property solutions (ups) ltd
No reviews yet
Extension Builder in West Hampstead
Hello. I have been in the building industry for over thirty years. I’m a competent professional and cover all aspects of the industry. Please don’t hesitate to contact me for professional advise quotations ect.
Get in touch
A&R Construction services
Rating: 5 out of 5
Extension Builder in West Hampstead
We are a construction and development company based in West London, specialising in high-end residential refurbishments With over 15 years of experience, We take pride in our building works, so when you choose A&R Construction for your project, you will work directly with us and we’ll ensure to get you the best rates possible from suppliers, including: kitchens, tiles, wooden flooring, bi-fold doors, and sanitary ware.
Get in touch
Latest review:
Roofing (Pitched)- 5 Apr 2024
I recently had the pleasure of working with the A&R company for roof repairs and transformation, and I must say, I couldn't be more impressed. Not only did they do an exceptional job with the repairs and transformation of my roof, but Amar and Jatinder went above and beyond by assisting with other minor fixes. Their friendly demeanor and professionalism made the entire process smooth and stress-free. I highly recommend A&R for their top-notch service and exemplary team members.
Paintworks
No reviews yet
Extension Builder in West Hampstead
We are a trusted painting, decorating, full house extension and loft conversion company dedicated to transforming homes with precision, creativity, and exceptional craftsmanship. With a strong focus on quality and attention to detail, we deliver complete property improvement solutions that enhance both the beauty and functionality of your space. From flawless interior and exterior finishes to bespoke house extensions and expertly designed loft conversions, we manage every stage of the process with professionalism and care. Our experienced team works closely with clients to understand their vision, ensuring every project is completed on time, within budget, and to the highest standards. We pride ourselves on reliability, clear communication, and a commitment to exceeding expectations. Whether you’re refreshing a single room or expanding your entire home, we provide results that add lasting value and style.
Get in touch
Domus Fortis Construction Group Ltd
No reviews yet
Extension Builder in West Hampstead
We are a construction company based in the heart of west London with 15+ years of combined construction experience
Get in touch
Chelsea Contractors Ltd
No reviews yet
Extension Builder in West Hampstead
My name is Nasser. I am the founder and managing director of Chelsea Contractors Ltd. I'm new on MyBuilder, but please check out our online presence/reviews on Instagram/Google/Checkatrade. I have completed over 50 extensions, loft conversion, refurbishment, or a combination of all projects in the past 10 years. We strive to deliver projects on budget and on time. Our track record proves this. Client satisfaction is our mission. We are fully insured, provide insurance-backed guarantees, and employ qualified personnel.
Get in touch
Goodman Global Ltd
No reviews yet
Extension Builder in West Hampstead
Please see the photos of works carried out by us. Our latest on going project as of 13/08/2021 is a throughout painting and refurbishment works of a 70 Bed nursing home in Chelmsford for our client Trust Care management in collaboration of NHS) Our lastest completed jobs: BEIRUT NIGHTS restaurant and sheesha bar at 187 Brent Crescent, Park Royal - see photos Also, completed in July 2021: EMAN - nail bar/beauty saloon at 4 Hermitage Parade, Ascot - see photos. Domestic projects are welcome.
Get in touch
POLISH DECORATING SERVICES LTD
Rating: 4.9 out of 5
Extension Builder in West Hampstead
We are not the cheapest but we are Master Builders experienced in all aspects of building works including bespoke services. Dedicated team of craftsmen always deliver jobs to the highest standards. We provide full certification for any gas or electrical works. City&Guilds- N.V.Q., P.A.S.M.A. and I.P.A.F. Over 15 years of experience in the UK.
Get in touch
Latest review:
Extensions- 11 May 2018
After a rogue builder left me with 18 (eighteen) structural issues. Lez and his crew came in transformed my failed extension into a masterpiece. All aspects of the job was done to the highest quality and utmost care and attention to detail was shown to building control needs. They cleaned up after every day and made sure the house was habitable, as I had to live there. Every aspect of the build, from the carpentry, plastering and tiling was first class and their recommend electrician and plumbers were from the same stock. Total professionals. My only regret is that I did not use this builder the first time. The prices were reasonable and even building control had good word to say about their work. Thanks Lez
Andrei
No reviews yet
Extension Builder in West Hampstead
My occupation building. I am working carpenter 5 years. I building loft conversion Extension any first and second fix.
Get in touch
edss construction ltd
Rating: 4.1 out of 5
Extension Builder in West Hampstead
We deliver a professional building service and will work with you step by step from inception of idea through to completion, in order to meet all your personal requirements. We understand that undertaking building, construction or refurbishment on your home or property can feel like a very daunting task and finding the right builder can be an even bigger challenge. As reputable building contractors we can provide you with local face to face references from previous clients and recent examples .
Get in touch
Latest review:
Extensions- 27 May 2024
Disappointed- Avoid I hired EDSS Ltd for a full home renovation including loft, kitchen extension, driveway, outbuilding, and garden. The original project timeline was 17–19 weeks but extended to over 16 months, with several key areas still incomplete or unsatisfactory. While there were some changes to scope and delays (e.g. tenant moving out late), the lack of project management and missed deadlines became a major issue. There was no clear schedule, and expensive materials like kitchen and bathrooms sat unused for months, impacting warranties. Throughout the process, I experienced repeated requests for payments at inappropriate times, and there were long absences without notice, which delayed progress further. The quality of workmanship fell short in many areas. For example, drainage issues led to multiple visits from Thames Water, and I eventually had to hire another company to remedy after months of issues. A lot of work was left unfinished and needed to be outsourced.
SMBuilding Company Limited
Rating: 5 out of 5
Extension Builder in West Hampstead
20+years experience in construction.Working on all types of jobs;large,small and everything in between.Seasoned in extensions,brickwork,renovations,chimney removal,structural work and development,we ensure an exceptional finish. Competitive rates,we have natural drive to get jobs done. These qualities allow us to set out budgets,and time frames,allowing our clients peace of mind. See our about section,and soon you could be relaxing in the knowledge that your job will be done on time and budget.
Get in touch
Latest review:
Bricklaying- 4 May 2016
Sean was polite, friendly, efficient, clean, tidy and his work was simply the best, I cannot praise Sean's work highly enough, if you want a great tradesman you can trust and someone will do exactly the job you want and more then hire Sean now. Sean is a rare find mark my words HIRE HIM .....
J N J Building Services LTD
No reviews yet
Extension Builder in West Hampstead
JNJ Building Services Ltd provides bespoke building and renovation services for homes in and around North & West London. We deliver innovative and intuitive solutions for our clients, offering a full range of services from design to completion. Our team works together to provide you with a hassle-free service from start to finish. We aim to minimise the disruption a building project can have on your home life with our commitment to punctuality and always working in a clean and tidy environment.
Get in touch
Building
No reviews yet
Extension Builder in West Hampstead
Plastering dry lining carpenter toaill
Get in touch
Dominant construction ltd
No reviews yet
Extension Builder in West Hampstead
Dominant Construction is a customer centric integrated building company specialising in home renovations, loft and basement conversions, and kitchen extensions. With over a decade of experience, we have designed our processes to ensure that our clients projects run smoothly - always on-time and always on-budget. We keep clear lines of communication at all times to make sure projects are collaborative and executed with our client's needs at the forefront.
Get in touch
United build ltd
No reviews yet
Extension Builder in West Hampstead
We are a team of hardworking experts.With over 20 years in the trade, we have the skills to ensure Whether you want to extend your living space or remodel your kitchen, our diligent team will create your dream home. We work with great attention to detail and complete all projects on schedule and with in your budget do contact us to discuss your need and we look forward to working on your project
Get in touch

Top rated Extension Builders

Our Extension Builders in West Hampstead, are rated 4 out of 5 based on 17 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 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.