Extension builders in Earlsfield

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.6 (19 reviews)

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Some of our top rated extension builders in Earlsfield

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SW Heating & Refurbishments Ltd
Rating: 5 out of 5
Extension Builder in Earlsfield
SW Heating & Refurbishments is a local refurbishment company specialising in complete property refurbishments, extensions and loft conversions, new heating systems and boilers. We take pride in all of our work and our aim is to provide you with a quality finish, tailored to your budget. With over 19 years experience, we have built up an extensive team of tradesmen allowing us to provide an outstanding service. We are fully insured and all our work is gas safe and NICEIC certified.
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Latest review:
Conversions - General- 20 Mar 2024
Charlie & Richard did a great job. They visited my property to get an accurate quote. They let me visit another property they are developing which gave me confidence that they were more than capable of my job. They carried out the work quickly and to a high professional standard. Wouldn't hesitate to use them again.
ASAR PLUMBING AND BUILDING
Rating: 5 out of 5
Extension Builder in Earlsfield
I am a qualified plumbing heating engineer and General builder, i have learned my trade working for a plumbing / building company for 15 years. i have also been Nescot College for four years where i gained my qualification. I am hard working person, honest, trustworthy and take pride of my job. Customer satisfaction is my top priority.
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Latest review:
Extensions- 17 Mar 2024
Agim and his team were great - communicated what they would do at each stage, the timing, materials needed etc., no major surprises. The building is quite old and wonky in places so they had to work with that and the finished result looks great. Very happy and have would recommend Agim again!
BM TILING
Rating: 5 out of 5
Extension Builder in Earlsfield
Build & Renovate BM is offering free estimates and the best ideas on any project you aim to achieve. We are happy to assist you by sharing our experience in delivering a great finished project in detail. Perfect finish at the right price; No stress on the journey. Fully insured. Work warrants. Kind Regards Byli on behalf Build & Renovate BM
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Latest review:
Tiling- 4 May 2026
Really great experiences tiler restored our original floor.
Gme Construction LTD
Rating: 4.6 out of 5
Extension Builder in Earlsfield
we are a team of experienced professionals committed to delivering exceptional construction, renovation, home improvement, garden and maintenance services.Our mission is to exceed client expectations through quality craftsmanship, transparent communication, and a personalised approach tailored to the unique needs of every project.
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Latest review:
Handyman- 12 Oct 2026
Gani was extremely polite and professional. Turned up on time and assembled my standing desk quickly and efficiently, which I would never have managed on my own. Would definitely use his services again. Thank you Gani!
Wisebuild Construction Ltd
Rating: 5 out of 5
Extension Builder in Earlsfield
Hi, I've been in construction for 25 years, building many extensions, basements, loft conversions, new builds and many refurbishments. We carry out all aspects of the building process, including electrical wiring, plumbing, bathroom fit outs, carpentry, cabinetry, tiling, kitchen fitting and decoration.
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Latest review:
Restoration & Refurbishment- 13 May 2026
Paul was highly professional throughout the engagement. He provided clear, practical advice and took the time to thoroughly assess our needs during the consultation. He was also very responsive and proactive in following up on any questions we had afterwards, which we really appreciated. Overall, a great experience working with him.
F&G Design and Build ltd
Rating: 5 out of 5
Extension Builder in Earlsfield
With a solid foundation of 15 years in the construction industry, our company has established itself as a beacon of excellence and reliability in transforming spaces Specializing in loft conversions, extensions, general building work, and renovations, we take pride in our ability to merge innovative design with impeccable craftsmanship.
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Latest review:
Bathroom Fitting- 14 Jun 2026
From start to finish, Darren and Aldi were completely professional and we are really happy with the finished result. They made design suggestions to help us make choices based on their vast experience and worked positively with us. The work was completed skilfully and with care. We would definitely recommend them without hesitation.
Mentor
Rating: 4.9 out of 5
Extension Builder in Earlsfield
Mentor Builders is a London-based, family-operated construction and refurbishment company, established with a commitment to delivering high-quality craftsmanship, transparent service, and consistent client satisfaction. Operating as a sole trader, the business is led by a qualified electrician with over a decade of hands-on industry experience and a passion for building spaces that combine functionality, safety, and aesthetic value. Founded on the values of honesty, reliability, and attention to detail, Mentor Builders has steadily grown through word-of-mouth referrals and repeat business. Our portfolio spans residential, commercial, and public-sector projects across Greater London and surrounding areas, including high-stakes environments like NHS facilities where precision, discretion, and regulatory compliance are paramount. Mentor Builders is proud to be a family-run business with a tightly integrated team of three core professionals, each with dedicated expertise in one of the following disciplines: • Electrical Installations & Safety Compliance • Plumbing Systems (residential and commercial) • General Refurbishment, Fit-outs, and Interior Renovations Our multi-trade structure enables us to offer a holistic service model to clients, removing the need for subcontractor management and ensuring full control over quality, timelines, and client communication throughout the project.
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Latest review:
Conversions - General- 20 Feb 2026
Well organized, good attention to details and taking pride in achieving good quality. Working to architects details and happy to do mockups to validate them is just part of the work. Mentor and his teams are highly recommended
Woodn Construction
Rating: 5 out of 5
Extension Builder in Earlsfield
Hi, I’m a carpenter and sole trader based in South West London with over nine years of experience in the trade. Over the years I’ve worked on a wide range of residential projects such as managing full site builds throughout to creating custom, made-to-measure furniture. My skills cover everything from stud walls, plaster boarding, skirting, architraves, doors and windows, to kitchens, flooring, and bespoke cabinetry. I take pride in delivering a high standard of finish and keeping things tidy and well-organised on every job. I enjoy working closely with clients to bring their ideas to life. Whether that’s fitting a new kitchen, renovating a room, or designing something completely unique. Based locally, I offer a reliable, friendly, and flexible service across SW London and the surrounding areas.
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Latest review:
Hard Flooring- 2 Mar 2026
Highly recommend Kaylum, he ripped out the old sub-floor and fitted a new sub-floor along with new Engineered wood flooring in all of the bedrooms and hallway. Quality of work and attention to detail was exceptional. His colleague then decorated all the rooms beautifully once the floor was installed - really happy with the end result.
B&CE CONSTRUCTION LTD
Rating: 4.9 out of 5
Extension Builder in Earlsfield
I am versatile carpenter with a background in residential, commercial, and municipal construction and remodeling. With a strong foundation in carpentry and woodworking, I have expertise in framing, trim, windows, doors, and siding. I possess in-depth knowledge of the construction process, from material selection and techniques to tools and equipment.
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Latest review:
Carpentry- 14 Apr 2026
Great
House Refurb
Rating: 4.9 out of 5
Extension Builder in Earlsfield
We have built our livelihoods on remodelling people’s homes, increasing their size and value. From the simple to the lavish, no matter how big or small, we’ve experienced it all and we can help you every step of the way offering a comprehensive service and take care of all aspects of your project, from initial plans through to full completion. Our skilled workforce of reliable professionals is on duty to offer you quality building work, competitive prices and exceptional customer service.
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Latest review:
Extensions- 24 Feb 2014
Narcis and his team listened carefully to my specifications and completed the job with an excellent finish. Throughout they were courteous and hard working. Highly recommended .
lnk.brickwork
Rating: 5 out of 5
Extension Builder in Earlsfield
LNK brickwork professional team has over ten years of experience in London's construction industry, working with commercial and residential customers locally. Property extension, build a garden wall, need a paving job done or plan a new build, you can count on LNK BRICKWORK. Our commercial projects include new construction, repairs and restorations. We can also plan, manage, and build multi-phase jobs.
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Latest review:
Bricklaying- 10 May 2019
Excellent work recently carried out to a very high standard. A very polite and professional team who delivered everything and more above my expectations. Would definitely recommend this company and use again.
Bolshoi Developments Ltd
Rating: 5 out of 5
Extension Builder in Earlsfield
Company specialized in the residential space going from rear extension and loft conversions to full refurbishments and new builds
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Latest review:
Plumbing- 18 Dec 2021
Thomas' team was amazing. They found the leak and repaired the roof perfectly. We are happy with the work accomplished. For our next loft extension we will hire them again.
Tawfik Werfalli
Rating: 5 out of 5
Extension Builder in Earlsfield
At Miko Construction, we specialise in high-quality residential refurbishments, extensions, and fit-outs. We’re a small, experienced team that takes pride in delivering well-crafted work with clear communication throughout. Whether it’s a full home renovation or a bespoke interior project, we bring a personal, hands-on approach from start to finish.
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Latest review:
Tawfik’s team was very professional and very knowledgeable, they done a great work including helping me with the design and understanding the process required to complete a project at this size, he completed the electrical work tested it and also included great ideas with the LED lights that made A beautiful design at the end, he also recommended a lot of subcontractors in the area are very competitive in their price and practically manage the project with me from inception to completion.
J&D
Rating: 5 out of 5
Extension Builder in Earlsfield
My name is Jacek i have been working as a builder for 15 years in UK I working with a team and we are good at Extensions Refurbishment Kitchens Bathrooms Rendering Plastering Painting
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Latest review:
Plastering- 24 Nov 2019
In the middle of finishing our kitchen job. His plastering has been excellent. Waiting now for a paint finish. Very punctual, honest and thorough with his job. I am very pleased we hired Jacek and will definitely be hiring him in the future. Thank you Jacek.
ELB Construction services LTD
Rating: 5 out of 5
Extension Builder in Earlsfield
Established, respectable construction company which specialises in all aspects of building. we pride ourselves on giving clients a personal touch. Seeing you’re project through from getting planning permission to completing works to a hi spec finish. new builds loft conversions house extensions refurbishments Basements All type of general building undertaken
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Latest review:
Extensions- 23 Dec 2022
ELB Construction completed some major garden works for me and constructed a garden office. It was a big piece of work with a lot of earth moving, significant foundations and a lot of brickwork. The ELB team, specifically Jimmy the site manager, were fantastic, always giving me the right advice about things I was not knowledgeable about, always focussed on a quality finish and flexible when we had some challenges with our neighbours. The finish is great, communication was always open and honest and they were very competitively priced. My brother in law is in corporate construction and was specifically very impressed with the quality of the brickwork that Jimmy and the team produced. Thank you to the whole team!
Balham construction Ltd
Rating: 5 out of 5
Extension Builder in Earlsfield
Balham construction are a London based refurbishment and construction company that offer a wide range of services from full Property refurbishment to extensions and loft conversions and everything in between
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Latest review:
Tom and the team completed a full renovation of my flat. This included refurbishment of my kitchen, bathroom and general redecoration. The team were extremely hardworking and punctual and no job was too difficult for them. I would highly recommend their services.

4.6

Top rated Extension Builders

Our Extension Builders in Earlsfield, are rated 4.6 out of 5 based on 19 reviews from customers like you.

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

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

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

What are the hourly rates of extension builders in Earlsfield?

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

Find extension builders in Earlsfield with MyBuilder

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

Step 2: Compare different extension builders in Earlsfield

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

Step 3: Hire Earlsfield extension builders with confidence

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

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

What to ask a Earlsfield extension builder before hiring?

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

An extension builder in Earlsfield 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 Earlsfield 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 Earlsfield?

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 Earlsfield 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 Earlsfield 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 Earlsfield

Can an extension builder in Earlsfield help with planning permission?

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

Many Earlsfield 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 Earlsfield help with materials and finishes?

Yes, most extension builders in Earlsfield 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.