Extension Builders in Stanmore

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.2 (16 reviews)

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Some of our top rated extension builders in Stanmore

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TWO BROTHERS INNOVATION LTD
Rating: 5 out of 5
Extension Builder in Stanmore
Hey, I’m Wesley Director of this company, our team is composed by 12 people (carpenter, bricklayer, painter) we love to build your dream, always working hard to develop the best results for your project. Two Brothers Innovation Ltd started trading in 2018. The company covers Wembley to Westminster and is able to support homeowners with jobs in the following categories: Bathrooms, joinery, loft conversion, extension and renovation.
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Latest review:
Wesley’s team did a great job sanding down and filling my stairs and painting them. They did the same for my front door. Very professional team, super helpful and friendly.
A1 home improvement London Ltd
Rating: 4.9 out of 5
Extension Builder in Stanmore
Welcome to A1 home improvement London ltd, Our family-run company is dedicated to providing top-quality construction, renovation, landscaping and roofing services to our clients. With a focus on integrity, excellence, and customer satisfaction, we strive to bring our clients' visions to life while exceeding their expectations. Combined our team has more than 35 years of experience. We provide all our clients with the highest standard of workmanship, unbiased advise and competitive pricing.
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Latest review:
Roofing (Flat)- 24 May 2026
Martin came and saw the job promptly. His quote was a little more than another I had had but he made a couple of suggestions and generally demonstrated he knew what he was talking about so I chose him. The job was done quickly and well in a day. It hasn't rained heavily yet but the roof seems perfect. Martin did say that if there were any problems to call him. I am sure everything will be fine but it's nice to have that kind of customer service. Highly recommended!
MSG DESIGN LTD
Rating: 5 out of 5
Extension Builder in Stanmore
Hello I am Simion, the proud owner of Msg Design Ltd , A little about us With many happy and returning customers over the last 7 years, you can be sure of being well looked after. Our aim is to provide a stress free project, delivered in a manner that I am confident will exceed your expectations. I work with a small team of trusted colleagues, who communicate and work together well. Our customers are accustomed the outstanding quality of projects we complete, by sourcing quality materials with experienced installers we create truly bespoke masterpieces lasting our customers many years. 2 year guarantees are included as standard on all completed work. Availability We are always contactable via phone throughout the week, including evenings and weekends. If for any reason you are unable to contact us, please send a text message or email. Thank you for taking the time to consider our company’s profile, I look forward to hearing from you. Msg Design Ltd
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Latest review:
Carpentry- 7 Jun 2026
Top carpenter. Will definitely be using again. Neat and great craftmanship.
London's lofts and extensions
Rating: 5 out of 5
Extension Builder in Stanmore
We are a family run business, which can offer you the personal touch. We will help you transform your property into a modern everyday living space. With minimum disruption to you and your family.
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Latest review:
As an Architectral Consultant I have worked with Michael Masterson on various domestic projects, loft conversions and extensions over the last ten years. I have always found his work to be of a high standard and completed to customers satisfaction and on time.
Eagle Eye Construction Ltd
Rating: 5 out of 5
Extension Builder in Stanmore
At Jon Davids Construction, we are dedicated to delivering high-quality residential construction services built on trust, craftsmanship, and attention to detail. From renovations and remodels to new home projects and general construction services, we work closely with homeowners to bring their vision to life with results that are both functional and built to last. Our team takes pride in professional workmanship, dependable service, and clear communication throughout every stage of the project. We understand that your home is one of your biggest investments, which is why we focus on quality, reliability, and customer satisfaction in everything we do. At Jon Davids Construction, we believe in building more than homes we build lasting relationships through honesty, integrity, and exceptional service.
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Latest review:
Conversions - General- 12 Oct 2022
Very happy with the quality of work. Would highly recommend Jon and his team. Very professional, cleaned after themselves everyday. thank you very much
Johan
Rating: 5 out of 5
Extension Builder in Stanmore
Hello to all visitors to my profile. My name is Przemek, I deal with interior renovation, bathroom finishing and kitchen installation. I owe this to my acquired experience. I have been working in UK for 7 years, of which for 1.5 years I was a bathroom and kitchen fitter at the "WICKES" store. I am a precise and aesthetic person. I love order at the workplace and I like seeing a smile on a customer's face.
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Latest review:
Tiling- 18 Apr 2026
Przemek did an absolutely brilliant job tiling the bathroom. A top standard finish and it looks fantastic! He is polite, professional, tidy, punctual, and he has a keen eye for detail. I wouldn't hesitate to use him again, highly recommended.
HR RENOVATIONS
Rating: 5 out of 5
Extension Builder in Stanmore
HR Renovations cover all aspects of building renovations.
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Latest review:
Painting & Decorating- 2 Jul 2025
Would highly recommend HR Renovations. A massive thank you to Ben and his team. They did a fantastic job of renovating my house and I would definitely be using them again! I would highly Recommend HR Renovations.
Nabstar Construction
Rating: 5 out of 5
Extension Builder in Stanmore
We are a friendly, reliable and honest team who offer a number of different services. We have been running for over 7 years and have our own public liability insurance. We specialise in full house renovations and extensions. Jobs we also offer are roofing, plastering, brick laying, flooring, tiling, fencing, plumbing and carpentry. We can also do painting, decorating, and small jobs around the home.
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Latest review:
Extensions- 26 Sep 2022
I would recommend to everyone reasonable quote and finished work on agreed time, very quick work and tidy everything when finished work, definitely I will hire him again.
Dan
Rating: 5 out of 5
Extension Builder in Stanmore
I do loft, extensions and refurbish houses (General building)
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Latest review:
Hi, Dan recently completed a loft conversion and ground floor extension for our house in Ealing. It is the second time I've used him for a loft conversion. We are delighted with the work, team, price and timing and I highly recommend him. Dan is entirely trustworthy, and the team are a mixture of his family, friends and choir group. Like all projects there were a few snags and without fail Dan was pragmatic, helpful and keen to make sure we were happy with the quality at the end. I've recommended him to neighbours on both sides who are both pleased and happy to recommend him.
Ionut negru
Rating: 5 out of 5
Extension Builder in Stanmore
Hi. My name is Ionut Negru and I am a skilled worker in the field of painters and decorators, tiles, laminate flooring and besides that i also do a same things related to plumbing, electrical and carpentry. I am a person who wants to make the customer satisfied and happy. I always offer good prices end high quality Thank you for your cooperation.
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Latest review:
Bathroom Fitting- 17 Dec 2025
Jonny installed a new bathroom for us and this was done to a very high standard. He was very professional, punctual and polite and talked us through areas of the project which we weren't too sure how to proceed with. I would definitely use Johnny again and would highly recommend him.
R.A.S. Construction And Design Ltd
Rating: 5 out of 5
Extension Builder in Stanmore
R.A.S Construction and Design Ltd is a well established company specialising in all aspects of construction and hard landscaping work. Our work is carried out by our own employed teams and we offer free advice and quotations. All our work is guaranteed and fully insured with public liability insurance for everyone’s peace of mind.
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Latest review:
Extensions- 10 Jun 2020
We had a one bedroom lower ground floor garden flat and did a side return and extension into the garden. The flat is in West Kensington area. We also did a full internal refurbishment and moved just about every wall, moved boiler, new Porcellanosa bathroom, new kitchen, new flooring throughout, a large bi-fold door in the living room to the garden. Chris and RAS Construction have been the best possible builders for this project. They were simply amazing. What we loved most about them: - speedy and no-nonsense communication (very important for us) - friendly and approachable - super professional and friendly team - very quick and helpful when a problem arose due to some architect's error - good aftercare - stayed in quoted budget - offered improvements and reasonable quotes - very easy to work with - only asked for partial payment every few weeks after job had moved along reflecting the amount charged This review was written about 8 months after the project was completed and we are still very happy with the quality. I would not hesitate to recommend Chris and his team at anytime. You hear so much about bad builders, we have been very lucky that we have found him. We are now house hunting for a bigger place and will re-engage with them for the next project.
ATKINSON JOINERY
Rating: 5 out of 5
Extension Builder in Stanmore
My team and I provide a fully nationwide top quality building service. Our specialist field of work is Loft Conversions, Full renovation projects, and new build extensions. My team and I have many previous satisfied customers of whom range from my original local town of Burnley through to Stratford upon Avon, Oxford and Greater London, of which, references/testimonials can be provided upon request. Viewings of previous projects can also be arranged.
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Latest review:
Conversions - General- 6 Apr 2010
After being let down by our previous builder, shortly before work was due to start, we were informed about this website, and somewhat hesitantly posted our garage conversion and kitchen renovation onto the site. After obtaining quotes from 3 builders, we decided to hire Nick cos of his straightforward and honest attitude to the job. We spoke with a couple of people that Nick had previously done work for, and they were very complimentary, so this just confirmed our decision to hire Nick. We have never undertaken any extensive building work before and were therefore nervous about the work starting, however I can honestly say that Nick was absolutely fantastic from start to finish of the project. Nick and his team were extremely hard working (finished much sooner than we expected), they kept the house as clean as possible when completing such works, and were generally an absolute pleasure to have around the house. Nick's craftmanship is exemplary and was always there to discuss any changes, extras or cut backs when not required. I would not hesitate in recommending Nick to anyone, safe in the knowledge that I know he would do an exceptional job, in fact more than three people have already asked for his details upon seeing the great job that he has completed here!! Thanks Nick for everything!!
Bathroom Renovation
Rating: 5 out of 5
Extension Builder in Stanmore
Im a multi trader and have a wealth of experience in construction on large projects and sites. We do bathrooms, kitchens, plastering, flooring, general renovations and extensions. We ensure we exceed clients expectations go above and beyond and work with a high standard and quality.
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Latest review:
Plastering- 8 Jun 2026
We were thoroughly pleased with Bathroom Renovation, Bahram and the services provided. We required stud walls throughout our apartment, ceiling replacement and ducting/pipework concealing. I can only say that Bahram and his communications have been a breath of fresh air. The team are efficient, friendly and get the job done - most importantly Bahram takes pride in the work his team complete. Our job was relatively urgent and Bahram offered what I feel was a fair price, remained communicative and had his team readily available to get the job completed within the timeframe. Most importantly, as with it seems all building works, jobs can grow slightly, but Bahram’s considered approach and advice was invaluable. We increased the scope of our works mid-job, and are really pleased with the results. Fair pricing, someone who has pride in their work, and a job well done.
Alb Homes Ltd
Rating: 5 out of 5
Extension Builder in Stanmore
Alb Homes Ltd is a family-run business that’s evolved from humble beginnings. With over 25 years of experience and 100+ projects completed, we have honed our skills to a level recognised by the Federation of Master Builders. We are always on hand to answer any questions and place a strong emphasis on documentation – allowing you to have a continuously transparent understanding of your project. When building with Alb Homes Ltd, you can rest easy with the confidence that you are in competent hands.
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Latest review:
Extensions- 26 Sep 2023
Well priced completed the project on time even though there was some unforseen works along the way. I had a back extension and some steel beams installed very happy with the the completed works
Balti Property Services
Rating: 5 out of 5
Extension Builder in Stanmore
We are a professional property developers who undertakes a variety of construction projects in London. We focus on construction works such as flat, loft conversions and extensions. We also carryout property refurbishments which include plumbing and electrical works, kitchen fittings and bathroom fittings.
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Latest review:
Extensions- 12 Apr 2025
We met many different builders before making our decision to go with Balti property services. The deciding factor was Jason's clear knowledge and eye for detail. Their price reasonable and they are willing to negotiate to help fit your budget. They managed to get the job completed within the time agreed to a very high standard. The team of workers are very competent and friendly, they turn up on time and leave the property safe when they leave ate the end of each day. I am a project manager for high end Audio-Visual installs, so you have to be good to impress me, but this company did, so it's a 5 star from me.
Erik Novak
Rating: 5 out of 5
Extension Builder in Stanmore
I’m mostly working on my own. Always discussing any work or changes with customers before going ahead with it.
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Latest review:
Handyman- 24 Apr 2026
Helped us move a large shed. Turned up on time, made himself available, and handled a tricky move with care. Easy to work with and good communication throughout.

4.2

Top rated Extension Builders

Our Extension Builders in Stanmore, are rated 4.2 out of 5 based on 16 reviews from customers like you.

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

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

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

What are the hourly rates of extension builders in Stanmore?

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

Find extension builders in Stanmore with MyBuilder

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

Step 2: Compare different extension builders in Stanmore

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

Step 3: Hire Stanmore extension builders with confidence

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

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

What to ask a Stanmore extension builder before hiring?

Before hiring an extension builder in Stanmore or extension building company in Stanmore, 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 Stanmore?

An extension builder in Stanmore 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 Stanmore 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 Stanmore?

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 Stanmore 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 Stanmore 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 Stanmore

Can an extension builder in Stanmore help with planning permission?

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

Many Stanmore 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 Stanmore help with materials and finishes?

Yes, most extension builders in Stanmore 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.