Extension Builders in St Johns Wood

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.1 (18 reviews)

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Some of our top rated extension builders in St Johns Wood

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R&E Landscaping LTD
Rating: 4.8 out of 5
Extension Builder in St Johns Wood
Hello! I'm excited to connect with you and help you with your needs. I am dedicated to providing exceptional service and support, whether you're seeking advice, information, or assistance with a project. With a focus on understanding your goals and delivering tailored solutions, I aim to make your experience as smooth and enjoyable as possible. At R&E Landscaping LTD, we specialize in providing comprehensive services for home extensions, transforming your living space to meet your unique needs and aspirations. Our expertise covers every stage of the extension process, ensuring a seamless experience from start to finish. Our Services Include: **Design and Planning** **Construction Management** **Foundation and Structural Work** **Roofing and Insulation** **Interior Finishing** **Utilities Installation** **Landscaping and Exterior Work** **Ongoing Support and Maintenance** Whether you're looking to add a new room, expand your kitchen, or create a home office, we’re here to help make your dream extension a reality. Contact us today to discuss your project, and let’s turn your vision into a beautiful new space!
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Latest review:
Really pleased with the work on our new wall and garden room. The workmanship was excellent, with great attention to detail and a really high-quality finish. The team were professional, friendly and kept everything clean and tidy throughout. The garden room has completely transformed the space and the new wall looks fantastic. Very happy with the final result and would definitely recommend their work.
Adibc Limited
No reviews yet
Extension Builder in St Johns Wood
Adibc Ltd is a family run building company with over 20 years experience of the building & construction industry. We are a London based firm with a good reputation for the quality of our work – in refurbishment, conversion and extension projects as well as new build – and for the cost effective way in which we work. We provide a wide range of services including: - House Extensions - Remediation & Demolition - Conversion Of Existing Buildings Into Flats - Loft Conversions - Kitchens - Bathrooms - Brickwork - Refurbishments - Renovations - Conversions - Garage Conversions - New Builds - Steel Work - Kitchen Installations - Bathroom Fitting - Painting & Decorating - Landscaping Services - Carpentry & Joinery - Electrical & Network Services We have recently finished a full house refurbishment in Golders Green and a full refurb extension and outbuilding in Willesden Green and two new builds one in North Finchley and another one in High Barnet.
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RJS Innovative Building Ltd
Rating: 5 out of 5
Extension Builder in St Johns Wood
RJS Innovative Building looks for new designs and technologies available to give our clients the best solutions. We are happy to look at any project. We provide extensive knowledge on interior/exterior refurbishment, extensions/loft conversions, bathroom redesigns/installations, kitchen redesign/installations and revitalising property period features. We have connections with kitchen, tile, natural stone manufacturers FOLLOW AND SEE OUR WORK ON INSTAGRAM. @rjsinnovativebuilding
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Latest review:
Restoration & Refurbishment- 9 Sep 2021
The original job for a bathroom renovation turned into a much bigger job. Raphael and his team ended up helping design and renovate the bathroom, bedroom, living room and hallway. The team helped us source all the materials including underfloor heating and an incredibly intricate mosaic tiled floor in the hallway. They provided practical advise about what was best for the space, what would work within our budget and what would be easy to live with. For example, the team installed underfloor heating in the living room using wood effect herringbone ceramic tiles which would help get the maximum efficiency out of the underfloor heating whilst giving us the wooden flooring look we desired. Raphael and the team were excellent throughout delivering high quality work and we were more than happy with the final results. I would highly recommend Raph and his team.
AH Builder
Rating: 5 out of 5
Extension Builder in St Johns Wood
AH North Builder Ltd specialise in all types of building we are professional and very determined to ensure our clients expectations are met. we have worked on many different building projects for more than 10 years experience.
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Latest review:
Extensions- 13 Nov 2020
Well, I do not usually write reviews, but this time is an exception. So after getting a number of quotations, I decided to go ahead with Fredi. The process was very smooth throughout, Fredi is a great individual and a reliable professional. The plan was to build a rear extension, but working with Fredi, we decided to commission him for the patio, changing all house flooring, kitchen, and two bathrooms. All have been delivered to completion with top-notch results. Most importantly, we have now a new family friend...Fredi the builder!!.. my kids say :)
MGR Construction
Rating: 5 out of 5
Extension Builder in St Johns Wood
Hi i have 12 years experience on this sector jobs that we undertake are full house renovation ,loft conversion Extension and Landscape.
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Latest review:
Fencing- 7 Oct 2018
Straight forward, easy to deal with, tidy, even removed an old shed for us. Would definitely use again.
Alpha contractors group
No reviews yet
Extension Builder in St Johns Wood
Alpha contractors group carries out all construction works both interior and exterior. From full refurbs to extensions, pavements and patios. The company is CHAS accredited and and I as the contractor have a SSSTS certificate from CITB. The company is fully insured with £5m Employer's Liability insurance and £10 Public Liability insurance.
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Bask construction
No reviews yet
Extension Builder in St Johns Wood
Backed by more than 30 years’ experience in the industry, Bask Construction Ltd have established themselves as one of the leading installers of all types of suspended ceilings, walls, and partitions in the Greater London area. From drywall to demountable partitioning systems, our installations are always completed to the highest possible standard.
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Adam Daniel LTD
No reviews yet
Extension Builder in St Johns Wood
Cliden Construction LDN is a small, London-based construction company specialising in high-end domestic refurbishments. With a passion for quality and attention to detail, we work closely with discerning clients across London to transform their homes into exceptional living spaces. Whether it’s a complete structural refurbishment, a luxury kitchen or bathroom renovation, or a full interior overhaul, we pride ourselves on delivering outstanding results that exceed expectations. As a boutique construction firm, we offer a highly personalised service. You will deal directly with experienced professionals who care about every aspect of your project — from the initial design consultation through to the final finishing touches. We only use premium materials and trusted specialist tradesmen to ensure a flawless finish every time. At Cliden Construction LDN, we understand that your home is one of your most important investments. That’s why we are committed to the highest standards of craftsmanship, reliability, and client satisfaction on every project we undertake. We look forward to the opportunity to bring your vision to life.
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Vukaj Construction
Rating: 5 out of 5
Extension Builder in St Johns Wood
I have expertise in both formwork and finished carpentry. I excel in formwork, ensuring precise and sturdy structures, as well as in finished carpentry, where attention to detail is crucial to achieve high-quality, aesthetically pleasing results. My skills cover the entire spectrum of carpentry tasks
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Latest review:
Carpentry- 29 Jan 2026
I contacted Ekland and his brother Bes for some light refurbishment. I was so impressed with the work and speed that they ended up doing all the works I intended to do. Starting with latex screed, flooring using LVT system, architraves and skirting boards, installation of 9x heavy duty fire doors, carpets in 2x bedrooms and finally decoration. Prices were very reasonable considering the time and effort they put into installation but not only that, as I am a first time buyer they advised me on design as I didn’t really know where to start. They are honest and reliable, where I tried to save money they said it was not the right thing to do and took additional hours to make something right without a hidden extra. They turn up at 8am everyday and so easy to work with, I left them the keys to my flat and I didn’t need to check in on them at all. If you are thinking to do any refurbishment and are either hesitant or not knowing where to start these are your guys. 5* to Vukaj and thank you!
AAB Home Builds Ltd
Rating: 5 out of 5
Extension Builder in St Johns Wood
We are limited co. General builders. WE TAKE CARE TO NEW BUILD, EXTENSION AND LOFT CONVERSION Specialists in exterior RENDER (WEBER ,KEY RENDERING&SILICONE RENDERING)and interior plastering. Bathrooms kitchens and refurbishment works.
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Latest review:
Plastering- 23 Dec 2016
Denis did a good job plastering and retiling a small area of my kitchen. He responded to my ad promtly, came round the next day to quote and carried out the work 2 days later as requested. He was professional, polite and left my kitchen clean and tidy after the work was done. I'm happy to recommend him and would contact him again if needs be.
A Interiors Ltd
No reviews yet
Extension Builder in St Johns Wood
Well established in the Greater London area, A Interiors Ltd is a trusted construction company. Skilled, reliable, and hard-working, have more than 30 years’ combined experience of delivering internal construction services and projects on time and budget, taking all the hassle out of renovating your property. Primarily serving commercial & residential clients in London and the surrounding areas. We take all sort of works like; loft conversion, etc.. Get in touch today for further details.
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NORTH STAR BUILDING SOLUTIONS LIMITED
Rating: 5 out of 5
Extension Builder in St Johns Wood
Established in 2010 Northstar Building Solutions are a highly successful building company specializing in exceptional residential projects. As well as covering all aspects of new build and can deliver technical expertise to the latest building designs. We pride ourselves in completing a variety of projects including affordable and high specification housing, energy centres, hotels, restaurants, community centres and a church; we are experts at Extensions, Conversions.
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Latest review:
Extensions- 2 Jan 2023
Excellent work overall. Builders were very professional, hardworking and friendly. Work was completed to a high standard and we were given updates throughout the entire process. Leo and his team were very responsive and resolved issues very quickly. Will 100% use North Star again for future work.
Bricks’N’Mortar building contractors LTD
No reviews yet
Extension Builder in St Johns Wood
BRICKS N MORTAR BUILDING CONTRACTORS LTD Building and refurbishment extension loft conversion, carpentry, kitchen and bathrooms, handyman, electric gas engineer painting, and decoration
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EA CONSTRUCTION
No reviews yet
Extension Builder in St Johns Wood
EA Construction is a well established family building company that has built up an enviable reputation over the last 10 years. We pride ourselves on our commitment to provide a professional and speedy service at all times, whilst maintaining the highest quality of work. We take on all types of jobs from small domestic work to larger commercial projects, all carried out to the highest standards, and at very competitive prices.
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Griffithstown Group
No reviews yet
Extension Builder in St Johns Wood
Time served builder who takes on general building works
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Alex Pana
Rating: 5 out of 5
Extension Builder in St Johns Wood
My name is Alex, I work in construction field for more then 13 years. My experience start with my first job, I have experience from big construction sites, indoors jobs, building houses, small jobs as painting, plastering, changind windows etc. I take on lots of different type's of job. Bricklaying, paving, garden jobs, rendering, decking, concrete slabs, plastering, plasterboard, painting decorating, tiles, floors, hang/ fix doors, wallpaper, etc. It varies from small to big jobs.
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Latest review:
Handyman- 24 Jan 2019
Alex did a brilliant job at a very good price. Nice, friendly guy who knows his stuff, I can definitely recommend him.

4.1

Top rated Extension Builders

Our Extension Builders in St Johns Wood, are rated 4.1 out of 5 based on 18 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.