Extension Builders in Hampstead

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.1 (19 reviews)

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Some of our top rated extension builders in Hampstead

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bb construction
Rating: 4.9 out of 5
Extension Builder in Hampstead
Barnes Builds Construction we are a small family run business covering all aspects off building and refurbishments offering highest standards of work and communication taking great pride in our crafts .
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Latest review:
Landscaping- 1 Jul 2026
Very conscientious and thorough- Chris and Ben were both polite, cleared up after themselves and did a good job.
Visu Verum
No reviews yet
Extension Builder in Hampstead
Visu Verum Design and Build was founded in 2010 to provide a range of services within the design and build sector for home owners and property professionals. Our projects range from small refurbishments and extensions, to large new build properties throughout London, Elmbridge and surrounding areas. We work in a totally transparent way to guarantee each project is delivered to the highest possible standard for the right budget.
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Dariusz Zaczkowski
No reviews yet
Extension Builder in Hampstead
Extension Loft conversion Bricklaying Roofing Demolition Porches and Conservatories Kitchen fittings BENCHMARX, HOWDENS and much more Floors, doors, windows, wardrobes, partition walls, shelving, fittings Decking Any aspects of plumbing Bathroom refurbishment Any aspect of electrical work Also interior and exterior decorating, plastering, painting All our work is insured For free estimates
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Huseco Limited
Rating: 3.7 out of 5
Extension Builder in Hampstead
HUSECO Limited is a well-established family business specialising in domestic renovation and construction projects. Our portfolio of skills also includes architectural design, interior design, and planning, which allows for stylish renovations, extensions, lofts, and modern living spaces. We have a loyal team of highly skilled builders, and the dedicated project manager personally oversees all our projects
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Latest review:
Extensions- 14 Sep 2025
How long should a 3m extension take if drawings were approved in April, the conservatory was demolished, the foundation completed, and the steel structure was already on site by May.?
Dragan Construct
No reviews yet
Extension Builder in Hampstead
We are 2 Brothers at the hearth of a construction Company experienced in Extensions, Conversions and House Refurbishment
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Electrical
No reviews yet
Extension Builder in Hampstead
Electrical work
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Home Renovations Ltd
Rating: 5 out of 5
Extension Builder in Hampstead
We're a building company specializing in house extensions, loft conversions and refurbishments. Our clients come from New Malden, where we're based, but also surrounding areas. The vast industry experience enables us to provide valuable advice, professional services and individual approach, benefiting our customers. As we understand trust and credibility are crucial when undertaking such projects, we arrange viewings and provide customers with references and photos of our most recent projects.
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Latest review:
Extensions- 24 Jun 2017
We had a large piece of work done by Johan and his team. It was a 4m single storey rear extension with new kitchen installation, converting the old kitchen into a downstairs bathroom and utility room, plus other bits and bobs like new boiler, rear patio. We got quotes from a few builders, Home Renovations weren't the cheapest, they were actually towards the higher end. But we went and saw their previous work and spoke to some of their other clients. The work was done to a high quality and the clients seemed to be happy so we decided to go with them. Johan's team are very hard working, professional and polite. Pawel and his team of builders, bricklayers, plumbers, electricians, etc. would turn up before 8am and finish at 6pm working solidly throughout the day. There is Magda as the project manager who keeps you in the loop, and answers any of your questions (which we had many). There is Michaela on the finance side who keeps you up to date with the budget. Our budget went over by 5% with "variations" (extra work or materials) but it was always communicated why and the work wasn't done without our approval. Pawel would give his recommendations but the final word would always be ours. But these things can add up. Overall we were very happy with the build, it was done to a very high standard. They also finished it before time. They said it would take 12 weeks in fact they finished it in 10 weeks which was amazing as you would normally expect these things to go over.
GH Build Specialists
No reviews yet
Extension Builder in Hampstead
NvQ level 6 construction manager with 20 years construction experience.
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Arch Construction and Project Management Ltd
Rating: 5 out of 5
Extension Builder in Hampstead
Arch Construction and Project Management Ltd is specialist of structural engineering, structural alterations,restoration, extensions, loft conversions and in middle&large sized projects on highest standard. We offer full building site and/or project management from concept to completion based on 22 years experience in construction industry with hassle and frustration free experience.
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Latest review:
Extensions- 12 Jan 2023
George and his team did an excellent job in building our extension and dealing patiently with our requests or changes. We had weekly face to face meetings with George and he would respond promptly to any issue. A very professional approach to the build project and an excellent result of build quality.
Super Active Partners Limited
No reviews yet
Extension Builder in Hampstead
A family owned construction company with over 40 years of experience. We provide our customers with the fastest and smoothest of services in order to get the job done quickly and efficiently. Good supplier relationships is a key factor to our success as it allows us to maintain our competitive edge.
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elexitech ltd
Rating: 5 out of 5
Extension Builder in Hampstead
elexitech ltd is a Morden based Painter & Decorator, Bricklayer, Bathroom Fitter, Repointing Specialist, Decking Specialist, Electrician, Extension Builder, Landscaper, Handyman, Kitchen Fitter, Loft Conversion Specialist, Plasterer, Plumber, Restoration & Refurbishment Specialist, Flat Roofer & Pitched Roofer company. Our goal is to provide quality service and excellent workmanship to our customers. If you need help with bathroom fitting, bricklaying, repointing, decking, landscaping, plumbing, roofing (flat), roofing (pitched), painting & decorating, restoration & refurbishment, plastering, electrical, extensions, handyman, loft conversion & kitchen fitting, message us so we can assist you and arrange a quote.
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Latest review:
Extensions- 27 Jun 2019
Frank is extremely trustworthy, reliable and professional and cares for a job done to the highest standard. He is accommodating, flexible and excellent at communicating with his clients to find the best possible and most suitable outcome. We are very happy with the final result and will definitely use again and recommend (already have!) to anyone in need of a reliable and skilled professional. Thank you Frank (and team!)
Pegasus designs & maintenance
No reviews yet
Extension Builder in Hampstead
We are a trusted construction handyman service with 11 years of experience in small to big projects. We specialize in luxury property refurbishments, with previous contracts with the Museum of London and Museum of Docklands. Our team provides high-quality workmanship and exceptional customer service. Contact us today for your construction needs.
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M&C Company
Rating: 5 out of 5
Extension Builder in Hampstead
I am a very hard and an experienced handyman.I and my team have done a lot of renovation work all-over London. My main trade is Painter&Decorator.No job is little or to hard.Most of the projects are done in time and on the budget.
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Latest review:
Painting & Decorating- 5 Sep 2021
Muhamet was very professional and delivered the job on time and in high quality. I would definitely recommend him.
London Beca Construction LTD
No reviews yet
Extension Builder in Hampstead
Quality, professionalIty on all type of services required. We cover all type of constructions, repair and maintenance.
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M & G contractors LTD
Rating: 4.3 out of 5
Extension Builder in Hampstead
M&G Contractors LTD always aims to exceed our client’s expectations by providing high quality services to the areas we serve. We have 20 years of experience in residential and healthcare behind us with a team off skilful plumbers, electricians, brick layers and labourers, get in touch today to learn what we can offer you.
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Latest review:
Conservatories- 14 Jun 2026
Wow, Xavia and his crew have done an amazing job replacing old polycarbonate conservatory roof with a solid tiled, insulated warm roof. I couldn't recommend these people enough, clean, curious, and experts in my opinion at all that they do. They went over and above when the weather changed to unforeseen heavy rain, and made sure we were watertight throughout. Lovely people, wonderful job, the best tradesmen I've met on my 64 years on this planet. Thank you.
Complete construction Ltd
New on MyBuilder
Extension Builder in Hampstead
We are a reliable and experienced building company providing a wide range of property improvement and renovation services. Our work includes roofing, ceilings, kitchens, flooring, general building, maintenance, and refurbishment projects for residential and commercial clients. We take pride in delivering high-quality workmanship, professional service, and projects completed to a high standard, on time and within budget.
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4.1

Top rated Extension Builders

Our Extension Builders in Hampstead, are rated 4.1 out of 5 based on 19 reviews from customers like you.

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

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

What are the hourly rates of extension builders in Hampstead?

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

Find extension builders in Hampstead with MyBuilder

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

Step 2: Compare different extension builders in Hampstead

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

Step 3: Hire Hampstead extension builders with confidence

After gathering all the information and quotes from your chosen home extension builders in 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.

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

What to ask a Hampstead extension builder before hiring?

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

An extension builder in 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 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 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 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 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 Hampstead

Can an extension builder in Hampstead help with planning permission?

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

Many 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 Hampstead help with materials and finishes?

Yes, most extension builders in 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.