Extension Builders in West Fields

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.2 (19 reviews)

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Some of our top rated extension builders in West Fields

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Agnuss Construction Ltd
Rating: 5 out of 5
Extension Builder in West Fields
We are a construction company that operates in the local area mostly, but we can also cover all the other areas of Greater London. Our Services include Extensions, Loft Conversions, Refurbishments, and basically all the aspects of building work. We specialise in residential and business projects.
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Latest review:
Agnuss Construction carried out and completed our house renovation, kitchen extension and loft extension successfully. Elio and his father, Mario were very communicative throughout and very reliable. The works were carried out on time and on budget. I would be happy to recommend Agnuss Construction and use them again in the future.
Royal
Rating: 4.9 out of 5
Extension Builder in West Fields
I have 7 year experience in Carpanter garden work tile and slab work new house renovation
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Latest review:
Carpentry- 5 Jun 2026
Good Job gate fits well
J & M loft conversion ltd
Rating: 5 out of 5
Extension Builder in West Fields
I’m a skilled landscaper with experience in designing and creating outdoor spaces that are both functional and visually appealing. From turfing and patios to fencing, planting, and garden maintenance, I take pride in delivering high-quality work with attention to detail. My goal is to transform outdoor areas into spaces homeowners can enjoy all year round. Reliable, hardworking, and customer-focused, I ensure every project is completed to the highest standard.
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Latest review:
Fencing- 6 May 2026
new fence built very quickly and well done!
Olgert Doko
Rating: 4.8 out of 5
Extension Builder in West Fields
My name is Olgert and my team and I are ready to give you a quote, on any building needs - painting, plastering, tiling, roofing, extensions and many other services. We are friendly, reliable and professional and we care about our work. Give us a call today for a free quote. We are located in North West London and we have more than 15 years experience in construction.
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Latest review:
Tiling- 15 Sep 2021
Very professional and helpful from the beginning to the end. Great work, tiling was finished on time and to a great standard. Our new restaurant floor looks great and customers love the new look. Would definitely recommend and will use again. Thanks Team Doko
Meshi
Rating: 5 out of 5
Extension Builder in West Fields
Meshi Finesse
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Latest review:
Handyman- 28 Nov 2021
Did an amazing job with the shed
Handyman
Rating: 5 out of 5
Extension Builder in West Fields
Welcome to handy paul, your go-to experts for all your home improvement needs in the heart of Mitcham serving the vibrant community of sutton Merton, London. With a wealth of experience under our belts, we specialise in transforming spaces with our comprehensive range of services, including Bathroom Fitter, Kitchen Fitters, Flooring, and Painters & Decorators etc.Our commitment to quality and customer satisfaction is second to none, ensuring that every project we undertake is completed to the highest standards.Choosing handy paul means choosing a partner who values your input and works tirelessly to exceed your expectations. We believe in open communication and collaboration, ensuring that you're involved in every step of the process. Our team is not only skilled but also friendly and approachable, making your renovation journey as smooth and enjoyable as possible.So, if you're in Mitchamor anywhere in <Merton, sutton,London, and you're ready to embark on a home transformation journey, look no further than handy paul. .manny thanks paulo
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Latest review:
Fencing- 27 May 2026
Excellent service from start to finish. Replaced 5 fence panels quickly and professionally, arrived exactly on time and had everything completed by 2pm. Friendly, hardworking and no fuss at all. Also removed and cemented in a fence post after finishing the fence work. Left everything tidy and did a great job, reasonably priced — highly recommend!
Singh builder
Rating: 5 out of 5
Extension Builder in West Fields
My first priority customer happy, once chance give me, trust my work.
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Latest review:
Bathroom Fitting- 30 Dec 2025
I have to say, i’m very pleased with my new bathroom. Singh builders has done a brilliant job and was really impressed with the professionalism, advice and support thought-out the project. I highly recommend them to anyone that is looking for a plumber
CDW building services
Rating: 5 out of 5
Extension Builder in West Fields
I as the manager have been personally working for a family run business for ten years+ as a multi skilled trader covering all aspects of the building industry which includes: Carpentry Bricklaying Bathroom refits Kitchen refits Extensions Plastering Plumbing Electrics My business is very reliable as all work is carried out to a high standard and is thoroughly checked.
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Latest review:
Plastering- 29 Apr 2026
Quality job done in just a few days. Definitely recommend this company.
SGB-Slav General Building
Rating: 5 out of 5
Extension Builder in West Fields
Welcome to the SGB Construction LTD website! I have been in the building trade for just over 20 years. I offer services for all aspects of the home and garden.All work is guaranteed .
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Latest review:
Bathroom Fitting- 14 Nov 2025
The first best experience i honestly had with respect to plumbing services. Slav was punctual and came exactly on the time he comitted. His service was very great and precise and seeing him working made me realise he is very experienced in his work. I will definitely call him for any other work that needs to be done. His price quoted was fair and worth the work.
Baatth construction ltd
Rating: 4.9 out of 5
Extension Builder in West Fields
All buildings work undertaken,extension ,loft conversion, plumbing, electrical, driveways
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Latest review:
Bathroom Fitting- 27 Dec 2021
Overall very Happy with the Job done.
Refurbishment service gold
Rating: 5 out of 5
Extension Builder in West Fields
I am an experienced professional with seven years of industry expertise. I always aim to deliver work of the highest quality, as every client is valuable to me
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Latest review:
Vladimir quoted. Turned up on time and did an amazing job - despite my not buying the correct size doors. He was professional and did an amazing job and was that rare thing- a workman you don’t mind having in your home. I have booked him to do more work after Christmas.
ResidentDevelopments
Rating: 5 out of 5
Extension Builder in West Fields
Conceiving and delivering aspirational residences, for the Resident.
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Latest review:
We have previously been burnt working with self proclaimed tradesmen. The organisation is professional and customer focussed. Working with them was a pleasure, I couldn’t recommend them enough.
CM Building LTD
Rating: 5 out of 5
Extension Builder in West Fields
At CM Loft Conversions, we specialise in luxury loft conversions, home extensions, and full refurbishments for both residential and commercial properties across London. Our dedicated team is renowned for transforming spaces with unparalleled craftsmanship and meticulous attention to detail. Whether it’s a high-end home, a modern office, or a commercial property, we deliver projects that elevate both form and function. By seamlessly blending design innovation with practical solutions, we ensure every project not only enhances the aesthetic appeal of a space but also maximises its value and usability. At CM Loft Conversions, we are passionate about creating bespoke spaces that reflect the unique needs of our clients. From concept to completion, we focus on the fine details and provide a smooth, stress-free experience. Whether you’re looking to transform your home, expand your business premises, or refurbish a commercial unit, our team is committed to delivering results that exceed expectations.
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Latest review:
I met Charlie and his team from CM Builders Ltd when they were completing a loft extension and ground floor extension for one of my neighbours. Quotation and budget I was given an estimate subject to drawings as I was on a strict budget that I had to keep to for the build. Charlie was able to help me keep to the budget, both at the final agreed plan and during the build. The project was complex in that whilst it was a loft extension, all of the house was rebuilt. The only thing kept was the external walls and first floor rafters. Whilst the footprint of the first floor was not being changed I wanted to bring it up to current building standards with extra insulation. All of the plumbing and electrics were also replaced including a new boiler. The overall build has come in on budget, save for agreed enhancements that I did not think of at the planning stage and or building regulations such as double ceiling fire plaster boards. There were also items such as the original stairs that I wanted to keep, but Charlie was able to increase the height space in the kitchen making the worktop much more usable for tall people for a larger part of the kitchen. These were suggested to me as potential options as part of the build. Stage payments The stage payments have all been sensible throughout the build and linked to the ongoing work schedule. I have not therefore had any concerns in this regard. Quality of work This was a very complicated build as unlike the ground floor the first and new second floor are “L” shaped. The new 2nd floor included an en-suite and 2 bedrooms. Overall the house has been increased from 2 bedrooms 1 bathroom, to four doubles and 2 bathrooms. The quality of work is excellent and Charlie project manages his team to ensure that they all deliver to a high standard- if it is not done correctlt they do it again, with Charlie spotting any issues. Timeline of build This has generally gone to plan very well. As with any build you have to be realistic as things will happen outside of anyone’s control. When issues have arisen Charlie manages them to a conclusion. Also be realistic if you are having to manage to a tight budget. I had to plan for various stage receipts of cash before I could order the kitchen and bathroom items - make sure you understand how this impacts the build and availability of the work force, recognising that CM Builders have to book kitchen fitters and plumbers. CM Builders are also very helpful in that they have sorted out issues with the brick work of my freestanding garage (nothing to do with the build) and also a neighbour’s wall that could have been dangerous to the public, should it have failed. Conclusion The whole family are very pleased with the outcome and we now have the equivalent of a brand new house that has been built to a very high standard. This has definitely been worth doing both from a valuation perspective and quality of life perspective. I would not hesitate to instruct Charlie and his team again.
Apex Plan & Build LTD
Rating: 5 out of 5
Extension Builder in West Fields
Apex Plan & Build is your trusted partner in turning vision into reality. Specializing in both domestic and commercial construction, we are dedicated to transforming houses into dream homes and businesses into efficient, modern spaces. With over 30 years of collective industry experience, our team ensures every project is completed to the highest standard, offering expertise in M&E works, including air source heat pumps and MVHR ventilation systems. We also bring cutting-edge innovation to your space with smart home automation solutions like Loxone and Control4, creating environments that are not only beautiful but also intelligent and energy-efficient. Apex Plan & Build is where your dream project is our top priority.
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Latest review:
Very professional and organised. My rear extension renovation was impeccable, thorough knowledge of building regulations with a variety of services to choose from really put me at ease. The venetian plaster feature wall has become the centrepiece of our home.
JUST London Carpentry
Rating: 5 out of 5
Extension Builder in West Fields
I am a fully trained Danish carpenter, qualified through a 4-year apprenticeship recognised across Europe for its high professional standard. This training exceeds UK NVQ Level 3 Advanced Craft, and I also hold a Gold CSCS Card. With nearly 15 years of experience, I bring Scandinavian precision, clean workmanship, and reliable communication to every project. My work is carried out with accuracy, pride, and an uncompromising eye for detail - whether the job is large or small. What you can expect from me: High-quality, long-lasting craftsmanship Clean, tidy, organised working methods Straightforward communication and honesty No shortcuts, no mess, no hidden surprises A finish that meets Scandinavian standards I treat every project with the same care I would expect in my own home. If you want genuine craftsmanship, reliability, and a premium finish — I’ll be happy to help.
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Latest review:
Decking- 5 Jul 2025
Liiam was fantastic, professional and you could tell he took pride in his work. I couldn’t be happier with the job done on my decking, he has completely transformed my balcony whilst also giving me advise and great professional help on other parts of the flat. Couldn’t recommend Liiam highly enough, if I ever need carpentry needs again I will be sure to contact him again.
Ioan Hrit
Rating: 5 out of 5
Extension Builder in West Fields
With over 13 years experience I'm confident in all aspects of groundworks including new build and extensions from footings up to damp course, drainage and the slab construction, kerb laying, block paving; drives paths, slab laying, septic tank installation and soakaways.
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Latest review:
Groundwork & Foundations- 31 Oct 2025
Fantastic all round service. Ioan is very hard working, very knowledgeable in his field and is very well organised and experienced with the logistics and execution of all types of groundworks. I would highly recommend.

4.2

Top rated Extension Builders

Our Extension Builders in West Fields, are rated 4.2 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 West Fields?

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 West Fields 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 West Fields who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in West Fields?

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

Find extension builders in West Fields with MyBuilder

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

Step 2: Compare different extension builders in West Fields

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

Step 3: Hire West Fields extension builders with confidence

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

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

What to ask a West Fields extension builder before hiring?

Before hiring an extension builder in West Fields or extension building company in West Fields, 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 West Fields?

An extension builder in West Fields 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 West Fields 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 West Fields?

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 West Fields 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 West Fields 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 West Fields

Can an extension builder in West Fields help with planning permission?

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

Many West Fields 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 West Fields help with materials and finishes?

Yes, most extension builders in West Fields 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.