Extension Builders in St Johns Wood

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

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Some of our top rated extension builders in St Johns Wood

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Dariusz Zaczkowski
No reviews yet
Extension Builder in St Johns Wood
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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A1 Builder
New on MyBuilder
Extension Builder in St Johns Wood
With over 10 years of experience in the building industry, we provide high-quality building, plumbing, bathroom fitting, kitchen fitting and property maintenance services. We specialise in renovations, repairs and home improvements, delivering reliable workmanship and excellent customer service. We are committed to completing every project to a high standard, on time and within budget. Customer satisfaction is our priority, and we take pride in being honest, professional and dependable from start to finish.
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Designs and Developments
Rating: 5 out of 5
Extension Builder in St Johns Wood
At Designs and Developments we have a wide variety of services ranging from bathrooms, kitchens, flooring, decorating loft conversions and extensions.
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Latest review:
Kitchen Fitting- 31 Jul 2019
To say Nick is just a kitchen fitter isn’t doing his work justice, he’s a fantastic project manager and craftsmen as well. When we first met Nick he took 2 hours of his time running through all the options which was when we realised we were actually quite clueless! Although we hadn’t hired him at this point his advice was invaluable. We assumed this would mean Nick’s professionalism would mean he would be very expensive, this was not the case and he was actually a little cheaper than the other parties who quoted. Once Nick started it became apparent that he and his assistant Chow to great pride in their work and worked hard to get the job finished as quickly as possible to the highest standard. They left the site spotless at the end of each day. The result is a fantastic kitchen and flooring which we are extremely happy with. We are already thinking about the next renovation piece in our home and would love to use Nick again. Thanks Nick! Niall & Hannah
Primavera Construction LTD
No reviews yet
Extension Builder in St Johns Wood
We specialize in domestic projects (inc. home extensions, loft conversions, refurbishments and new builds), delivering projects from design concept (Planning Stages) through to Construction and Turnkey Completion. CONSTRUCTION EXPERIENCE: 8 yrs working on complex £100M+ projects across London, 2 yrs working on new build £5M+ project in Chigwell, as well as many smaller domestic projects. PLANNING EXPERIENCE: 10+ yrs of securing planning applications across London and the surroundings.
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Adamus and Contractors Limited
No reviews yet
Extension Builder in St Johns Wood
Adamus & Contractors Limited We’re a friendly, hands-on building company with 10+ years’ experience, specialising in refurbishments, loft conversions and extensions. Whether you’re opening up a space, extending your home, or bringing an older property back to life, we handle everything from start to finish. We’ve got an in-house architect and interior designer, so we can take care of the planning, design and build all under one roof — making the whole process a lot easier for you. From steels and structural work right through to the final finishes, we use a solid team of trusted trades and take pride in doing things properly. We’re used to working in people’s homes, so we keep things tidy, organised and running smoothly. We keep it simple: clear quotes, honest advice, and no surprises. If anything changes along the way, we’ll talk it through with you first. You bring the vision. We bring the standards. At the end of the day, we just focus on doing a proper job and leaving you with a space you’re genuinely happy with.
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JM C&D Ltd
Rating: 5 out of 5
Extension Builder in St Johns Wood
We are over 10 years experienced and well established construction company based in Worcester Park in Surrey. We are specialised in loft conversion, house extension, new build and basement and commercial works. We do quick response to all our client's enquires and build fast as well.
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Latest review:
Extensions- 27 Jun 2022
Very very happy with Michael's work. From the day one of the meet till end of the project, he and his team been quite professional and have been working with high standards. We received range of quotes from different builders and Michael's quote was somewhere in middle with good quality of work which we have seen during our site visit for his other projects. So, decided to go with him. One really good thing you get from Michael is plenty of ideas and options. From our original drawings, he suggested some changes which were really useful. Being a lay people, During the project we were confused in some design options and Michael really assisted with 3 to 4 options and he suggests which one is the best from his view point but also been flexible if we wanted to do in specific way. He was daily coming to the site to monitor quality and progress of the work. All his team is highly skilled and experienced. The all do general building but when it comes to specific, they have specific tiles, electrician, plumber, painter etc etc who finishes the job at very high quality. They work flexible to complete the job on time and keep the area safe and tidy. In terms of managing project in budget, we had a good experience where Michael will in detail explain what is covered in agreed amount and where the extra cost will incur if there are major changes. I am taking this much time to write this review so that it can help others to see my good experience with Michael. 100% best.
Global Rise CIC
Rating: 5 out of 5
Extension Builder in St Johns Wood
At Empower Build, we specialise in delivering high-quality kitchen and bathroom fitting, plumbing, electrical services, and loft and extension construction. With a commitment to precision, reliability, and customer satisfaction, our skilled team ensures that every project, whether a small renovation or a full-scale home extension, meets the highest standards. We focus on creating beautiful, functional spaces tailored to your needs, using the latest techniques and materials. Trust us to transform your home with expert craftsmanship and seamless project execution from start to finish.
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Tikkun Group LTD
No reviews yet
Extension Builder in St Johns Wood
Tikkun Group Ltd is a high-end construction and property refurbishment company based in, London. We specialise in: Loft conversions & home extensions Full property refurbishments & renovations Kitchens & bathrooms Electrical, plumbing and structural steel (RSJ) installations With over 20 years’ experience, we deliver high-quality workmanship, honest advice and clear communication from start to finish. We work for homeowners and landlords across Belgravia, Chelsea, Knightsbridge, Kensington, Westminster and surrounding areas from small repairs to complete refurbishments. Fully insured, professional and committed to exceptional results on every project.
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elexitech ltd
Rating: 5 out of 5
Extension Builder in St Johns Wood
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 St Johns Wood
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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Safeway Build Ltd
Rating: 5 out of 5
Extension Builder in St Johns Wood
At Safeway Build Ltd, we pride ourselves on delivering exceptional craftsmanship and reliable service in every project we undertake. Led by Florin, a highly trained professional with over 20 years of experience in the construction industry and a proud member of the Federation of Master Builders (FMB) since 2014, our company is built on trust, quality, and attention to detail. Working alongside trusted electricians and plumbers, we offer a complete service that ensures every aspect of your project is handled with care and expertise. Much of our success has come from referrals and repeat clients, a testament to the satisfaction and confidence our customers have in our work. At Safeway Build Ltd, we don’t just build — we build lasting relationships, turning your vision into reality with professionalism, transparency, and dedication. Whether you are looking for loft conversions, extensions or a refurb, all our services are carried out carefully, efficiently and to an exceptionally high standard of quality. We are happy to undertake any domestic work. At Safeway Build Ltd, no job is too big or too small.
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Latest review:
Kitchen Fitting- 10 Feb 2026
Florin and team were a joy to work with. Very communicative and worked to a great timeframe. Lots of little extra jobs were completed at no extra charge. Cost for job was reasonable and the tiling was immaculate - would definitely use Florin again. Would highly recommend!
Mariusz Moniuszko
No reviews yet
Extension Builder in St Johns Wood
I have had a registered general contracting company since 2004. I have also achieved Master Builder status
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Mailm limited
No reviews yet
Extension Builder in St Johns Wood
We provide complete building solutions on both Residential and Commercial sites and smaller domestic builds. Our valuable experience is shown in all aspects of our work.
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BRITLIT CONSTRUCTION LTD
Rating: 4.9 out of 5
Extension Builder in St Johns Wood
Building construction work, all building work undertake. Experience 20 years
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Latest review:
Conversions - General- 23 Nov 2019
Saulius was excellent. Saw the job that needed doing, we thought it looked complicated and were worried about the costs. However, him and his team dealt with it quickly and made a complex job look
S.S COUNSTRUCTION LIMITED
Rating: 4.5 out of 5
Extension Builder in St Johns Wood
Best quality all types of construction work cover luton watford area
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Latest review:
Extensions- 20 Sep 2023
Very poor quality workmanship. Basically a cowboy builder. Don't trust him.
NuLux group
No reviews yet
Extension Builder in St Johns Wood
At Nulux we specialise in interior design, Constuction property renovations and maintenance. We treat every project as it’s our own home providing outstanding quality work and services.
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Top rated Extension Builders

Our Extension Builders in St Johns Wood, are rated 4 out of 5 based on 17 reviews from customers like you.

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What types of services are offered by local extension builders in St Johns Wood?

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 St Johns Wood 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 St Johns Wood who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in St Johns Wood?

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

Find extension builders in St Johns Wood with MyBuilder

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

Step 2: Compare different extension builders in St Johns Wood

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

Step 3: Hire St Johns Wood extension builders with confidence

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

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

What to ask a St Johns Wood extension builder before hiring?

Before hiring an extension builder in St Johns Wood or extension building company in St Johns Wood, 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 St Johns Wood?

An extension builder in St Johns Wood 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 St Johns Wood 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 St Johns Wood?

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 St Johns Wood 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 St Johns Wood 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 St Johns Wood

Can an extension builder in St Johns Wood help with planning permission?

Yes, many extension builders in St Johns Wood 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 St Johns Wood handle everything from design to construction?

Many St Johns Wood 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 St Johns Wood help with materials and finishes?

Yes, most extension builders in St Johns Wood 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.