Extension Builders in Stanmore

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.8 (14 reviews)

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Some of our top rated extension builders in Stanmore

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Grand Improvements Ltd
Rating: 5 out of 5
Extension Builder in Stanmore
My business partner Jake and I have been in the building trade for over 15 years. We undertake projects of all sizes, giving professional advice to meet your renovation needs. Our customers are aways highly satisfied, which intern leads to repeat business. The Grand Improvements team are polite, tidy, efficient, and take pride in completing every job to a high standard.
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Latest review:
Plastering- 24 Aug 2020
Byron replied to a job quickly, quote was what we have expected and he accomodated specific date we needed this done by. Communication from the beginning until the end was great, he explained everything clearly, advised day before what time will they be arriving and arrived in time. Did a fantastic job plastering living room ceiling and cleaned up the floor afterwards as well. Very pleased and will definitelly be employing again for any future jobs. Thank you!
First Corner Construction Ltd
No reviews yet
Extension Builder in Stanmore
We are a company with decades of experience in all types of construction work, no job is too small or big! Just let us know the desired work you would like to have carried out, then we will come out and have a face to face consultation at the property and start working as soon as it is convenient for you. We are flexible and want to work with you.
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KG BUILD
Rating: 5 out of 5
Extension Builder in Stanmore
With your specifications and our expertise, we happily take on any building work and produce excellent results. Extensions, Loft conversions, kitchens, bathrooms, garden rooms/studios/outbuildings, roofing, flooring, carpentry and joinery etc
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Latest review:
Carpentry- 13 Dec 2025
Kwame did a great job and was thoughtful, communicative and very skilled with the work he was carrying out on our joists. I would recommend KG build to anyone looking for a good price and a high standard of work.
Improvex Ltd
No reviews yet
Extension Builder in Stanmore
We are a professional construction company specialising in full property refurbishment and renovation projects. We manage projects from initial planning through to completion, ensuring all works are carried out to a high standard, on time and within agreed budgets. Our services include full refurbishments, structural alterations, wall removals, steel installations, extensions and internal reconfigurations. We work with experienced and fully insured subcontractors where required and oversee every stage of the project. Clear communication, transparency and attention to detail are at the core of how we work. Before starting any project, we take the time to understand our clients’ needs and provide clear quotations with no hidden costs. Health and safety, building regulations compliance and quality workmanship are always a priority. We aim to deliver reliable, stress-free projects and long-lasting results our clients can trust.
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Arka Developments
New on MyBuilder
Extension Builder in Stanmore
Arka Developments is a London-based design and build company specialising in residential and commercial refurbishment, house extensions, and new build projects across North West London. With a background in architecture and construction project management, we deliver well-planned, high-quality projects with a strong focus on design, cost control, and efficient execution. We offer a fully integrated service from planning and design through to construction ensuring a smooth, transparent process and consistent results. Whether you’re upgrading your home, extending your space, or delivering a development project, Arka Developments provides reliable, hands-on delivery at every stage.
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LDK BRICKWORK
Rating: 5 out of 5
Extension Builder in Stanmore
Brickwork ,extentions, restoration, pointing , retaining walls
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Latest review:
Bricklaying- 13 Aug 2021
We agreed on a price which was satisfactory, Keaton and his team were very professional job completed , brick laying to a good standard. Very happy would recommend friends.
RENNO HOMES LTD
No reviews yet
Extension Builder in Stanmore
Welcome to Renno Homes, where we specialize in transforming living spaces to create the home of your dreams. Our dedicated team is committed to delivering high-quality renovations that reflect your unique style and needs. From concept to completion, we take pride in our attention to detail and our ability to handle every aspect of your project seamlessly. At Renno Homes, we prioritize customer satisfaction and strive to exceed your expectations. Whether you’re planning a small update or a complete transformation, we are here to guide you every step of the way. Contact us today for a consultation, and let’s bring your vision to life.
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Musawir Architecture Limited
Rating: 5 out of 5
Extension Builder in Stanmore
We are fully qualified & established architectural design team, with high success rates in obtaining residential and commercial planning approval. A multi-disciplinary consultancy with 10 years combined experience. We provide services for all projects, new builds, extensions, conversion along with commercial projects and change of use. Musawir Architecture retains our competitive edge having exceptional approval rates for planning & building regulations submissions and offer outstanding quality.
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Latest review:
Extensions- 5 Feb 2021
Abul was very professional and went through our extension plans thoroughly, making sure he understood exactly what it was we were after and made some suggestions himself. He has been very easy to contact with any queries, a great service.
STEADYBUILDERS LTD
Rating: 3.8 out of 5
Extension Builder in Stanmore
Steady Builders Ltd are experienced, reliable building contractors with over 20 years in the trade. We specialise in solving problems others can’t — providing practical, compliant, and long-lasting solutions for homes of all types. From structural alterations to full conversions and refurbishments, we deliver solid workmanship, clear pricing, and jobs done right first time. Our experience allows us to identify issues early, keep projects on track, and minimise disruption for homeowners. If you’re looking for a builder who understands the job, respects your home, and delivers dependable results, Steady Builders Ltd is the team you can trust. Also we do happen to be on channel 4: Kirstie and Phil's Love It or List It: Season 9, Episode 4
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Latest review:
Conversions - General- 31 May 2026
Milen and his crew were quick and professional in clearing rubble and making good. They solved unforeseen problems that came up during the job and stuck to the original quoted price throughout. Would recommend.
Goodman Global Ltd
No reviews yet
Extension Builder in Stanmore
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.
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P. Maguire Building construction and property maintenance
No reviews yet
Extension Builder in Stanmore
I am a builder with 30 plus years experience in trades . I undertake all aspects of building works . I benefit from having a 9.9 average review score with checkatrade covering dozens satisfied customers.
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Bricklayer
No reviews yet
Extension Builder in Stanmore
I’m honest man and hard working and I like to make the customer always happy
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4 Seasons Construction Ltd
Rating: 5 out of 5
Extension Builder in Stanmore
Here at Four Seasons Construction we like to pride ourselves on delivering projects exactly to our customers requirements and expectations. We have over 20 years of experience within the building industry covering everything from garden walls to new build bespoke homes, so what ever your project might be rest assured you'll be in safe hands. Thank you for viewing our profile and we look forward to hearing from you about your next project!
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Latest review:
Bricklaying- 3 Jun 2017
Carl did some work to our brickwall. I found him to be very punctual, polite and professional throughout. He is competitively priced, cleared up after himself, kept within timescale and budget. I would be happy to recommend Carl to others seeking similar work.
Bendev Construction 2018 Ltd
No reviews yet
Extension Builder in Stanmore
Family business with experience in new builds, extensions and refurbishments
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JC Group Property Sevices LTD
Rating: 5 out of 5
Extension Builder in Stanmore
JC Group Ltd is a reliable and experienced building company offering bathroom installations, plumbing, home extensions, and general building works. With over 30 years of combined industry experience, we take pride in delivering high-quality workmanship, clear communication, and projects completed on time and within budget. We are committed to customer satisfaction and maintaining the highest standards on every job, no matter the size.
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Latest review:
We’re absolutely delighted with the extension and the overall experience from start to finish. The workmanship is to a very high standard, and everything was completed professionally and on schedule. Communication throughout the project was excellent, and we were kept informed at every stage. The team were reliable, tidy, and respectful of our home, and the finished extension has exceeded our expectations. We wouldn’t hesitate to recommend them to anyone looking for quality work and a stress-free build.
MN Building Solutions
No reviews yet
Extension Builder in Stanmore
We are company with over 15 years of experience in construction industry. We provide exceptional services and high-end residential refurbishment. Our qualified team undertake projects around London. The type of work we undertake includes: - Extensions - Loft conversions - Plumbing and Electrical Services - Kitchen and Bathroom refurbishment - Carpentry - Painting and Decorating
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3.8

Top rated Extension Builders

Our Extension Builders in Stanmore, are rated 3.8 out of 5 based on 14 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 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.