Extension Builders in Harlesden

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.2 (20 reviews)

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Some of our top rated extension builders in Harlesden

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Spartan Homes ltd
No reviews yet
Extension Builder in Harlesden
Hi my names Leo and I am a multi skilled Tradesmen with other 35 years experience , city and guilds registered. I specialise in kitchens and bathrooms Plumbing and Electrics Garden Fencing and decking Garage conversions and extensions Flat roofs Any household DIY Painting and Decorating I am a perfectionist and take pride in my work!
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Luxatti homes ltd
No reviews yet
Extension Builder in Harlesden
Building Luxury, Perfecting Detail At Luxatti Homes Ltd, we bring over 15 years of experience delivering high-end residential construction, bespoke new builds, extensions, and full refurbishments across London and the Home Counties. Led by Satwinder (Sunny) Johar, our team combines craftsmanship, innovation, and reliability — treating every home as if it were our own. We cover West London, Buckinghamshire, Berkshire, Surrey, and Middlesex, including Gerrards Cross, Beaconsfield, Maidenhead, Wimbledon, Uxbridge, Hayes, and surrounding areas. Our expertise includes luxury new builds, loft conversions, kitchen and bathroom installations, glazing, roofing, underfloor heating, and complete project management under JCT standards. Clients choose Luxatti Homes for our attention to detail, transparent communication, and flawless delivery. Every project reflects our belief that true luxury lies in precision, honesty, and pride in workmanship. No shortcuts. No compromises. Just exceptional homes.
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Transhomes Limited
No reviews yet
Extension Builder in Harlesden
Transhomes limited is a registered home improvement company offering range of services from extension to loft conversion. Our services includes extensions,loft conversions, kitchens and bathrooms, and all aspects of building work. We have public liability insurance and employers liability insurance
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S WARAICH CONSTRUCTION LTD
No reviews yet
Extension Builder in Harlesden
We do best work
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N M Building and Roofing Ltd
Rating: 5 out of 5
Extension Builder in Harlesden
Hi we are n.m building and roofing we are a family business that undertake all building / roofing / and / landscaping work all our quotes are free and all work is guaranteed we have many 5 star testimonials for our work we have been working with many happy customers for over 20 years we look forward to hearing from you many thanks Neil N.M building we are also a 5 star approved with trust a trader
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Latest review:
Landscaping- 12 Aug 2024
Neil provided a professional assessment of the job, quoted and carried out the work in a honest and professional manner. Good job tidied up a and provided good advice after the work was completed. I would recommend N M Building and Roofing Ltd
elite surveying and consultancy ltd
No reviews yet
Extension Builder in Harlesden
Having nearly 20 years experience in the masonry and construction sector my knowledge come directly from hands on experience, having built and managed projects from small extension right through to 400 unit high rise developments, my main experience is in high end one off bespoke houses so you can be assured I have the knowledge and expertise to undertake any type of project you require.
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Daniel Copil
Rating: 5 out of 5
Extension Builder in Harlesden
Hello everyone, we are proud problem solving builders who covers all areas of building works: extensions, kitchens, bathrooms, painting and decorating, tiling, flooring, plumbing, electrics, carpentry, gardening, fencing, bricklaying, paving... Everything you need in one team for your peace of mind!
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Latest review:
Tiling- 16 Jun 2026
Daniel is a hardworking, precise and clean worker. He worked tirelessly for a week, doing a fantastic job with everything we asked of him: we now have freshly painted walls, new carpets and a completely refurbished bathroom! He’s on time, polite, keeps noise to a minimum and he’s very pleasant to have a chat with too. I’ve already recommended him to my close circle very gladly.
Provision design & build limited
No reviews yet
Extension Builder in Harlesden
Provision design & Build Limited is a family-run company that has built its reputation on the basis of quality and value of work. We pride ourselves on our high standards of work and excellent results, which have resulted in a high volume of recommendations from our clients. Our team has extensive experience in undertaking projects ranging from minor repairs and maintenance to major refurbishment ,Extensions ,Loft conversion ,New build and construction works.
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Goldberg Engineering Ltd
Rating: 5 out of 5
Extension Builder in Harlesden
Chartered Structural Engineer offering design services for: - house extensions - loft conversion - internal alterations - structural surveys - Design of Steel and timber Beams - Design of Foundations and Walls
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Latest review:
Loft Conversion- 14 Oct 2021
Zilvinas produced drawings promptly and at a very competitive rate. He attended several site visits and ensured to incorporate all of our ideas. We have received fantastic after sales service from GoldBerg Engineering throughout the project and would not have had the results we have, without Zilvinas. Goldberg Engineering has provided brilliant guidance throughout, through rapid response emailing, regular Skype and several site visits. Goldberg approved each work phase and continues to offer support. Thank you very much! Highly recommend, 5Star!
Oak and stone construction
No reviews yet
Extension Builder in Harlesden
We are a professional construction company specialising in building, refurbishing, painting, and decorating services. With a focus on quality, reliability, and attention to detail, we deliver projects for both residential and commercial clients, ensuring every job is completed to a high standard and on time. Quality building, refurbishing, painting, and decorating you can trust.
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Parm builder
No reviews yet
Extension Builder in Harlesden
We are ready to build anything whether it’s ur dream home or the biggest. We make our customers happy always We always listing them first nicely then we start the job. And we doing everything all building work like elctric,plumbing,extension,garage,loft,bathroom,kitchen .
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Sova Services Ltd
No reviews yet
Extension Builder in Harlesden
We are a company with huge experience in interior and exterior refurbish , extensions , loft conversions !
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QBS Property Maintenance LTD
No reviews yet
Extension Builder in Harlesden
We QBS Property maintenance LTD are the leading maintenance company with over 40 years experienced provided amongst our team. We specialize in full property renovations, bathroom fittings, gas & heating jobs, plumbing, carpentry, extensions, loft conversions, roofing. You can count on us to provide an excellent and cost affective solution.
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Lee winkworth
No reviews yet
Extension Builder in Harlesden
Experienced builder in all reconstruction works including loft conversions and extensions as well as re development plans including all plastering works including plastering ,rendering , screeding ,dry lining ,tacking ,carpentry and joinery as well as board work and installing insulation in many forms such as celotex, rockwool, interior and exterior insulation board and also soundboard installation to regulation standards ,ground works and drainage also undertaken to superior standards
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Rayan and Kevin brickwork
Rating: 4 out of 5
Extension Builder in Harlesden
We do extensions , lofts conversions , roofing . gardening, rendering.and much more we have more than 20 years experience .
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Latest review:
Bricklaying- 25 Aug 2024
AVOID. Ernie incorrectly installed my drains under my house which has caused awful smells and sewage to leak under my house causing long term damage to my foundations Three professional drainage company’s have put a camera to see a Dropped pipe from new to old house. They have identified a connection that was never appropriate. Unfortunately, Ernie after being given many opportunities does not accept any responsibility. He is not an expert at all trades so be careful. I’ve asked him to help put right by exposing the floor which has Underfloor Heating. This has now cost me tens of £000s. My fault for not using a professional team at the beginning of my project.
FAIZ Construction LTD
No reviews yet
Extension Builder in Harlesden
FAIZ Construction Ltd is a Gas Safe registered company. We are qualified gas engineers and plumbers with full public liability insurance. Our team of experienced professionals delivers high-quality workmanship, reliable service, and a commitment to getting the job done right first time. Gas services: boiler installation, servicing, repairs, and safety checks. • Plumbing: installations, repairs, bathroom and kitchen plumbing, leak detection. • Emergency call-outs: rapid response for urgent gas or plumbing issues. • Maintenance and upgrades: system improvements, energy-efficient solutions, and compliance work. Gas Safe registered engineers; fully qualified and up to date with regulations. • Public liability insurance for your peace of mind. • Workmanship guarantee — we stand behind the quality of our work and resolve issues promptly. • Professional, hardworking team with years of hands-on experience and dedication. Please feel free to ask any questions or request a free quote. We respond quickly and can provide references and proof of qualifications on request.
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4.2

Top rated Extension Builders

Our Extension Builders in Harlesden, are rated 4.2 out of 5 based on 20 reviews from customers like you.

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

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

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

What are the hourly rates of extension builders in Harlesden?

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

Find extension builders in Harlesden with MyBuilder

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

Step 2: Compare different extension builders in Harlesden

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

Step 3: Hire Harlesden extension builders with confidence

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

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

What to ask a Harlesden extension builder before hiring?

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

An extension builder in Harlesden 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 Harlesden 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 Harlesden?

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 Harlesden 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 Harlesden 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 Harlesden

Can an extension builder in Harlesden help with planning permission?

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

Many Harlesden 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 Harlesden help with materials and finishes?

Yes, most extension builders in Harlesden 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.