Extension Builders in Northolt

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 Northolt

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CONSTA Construction Limited
Rating: 4.6 out of 5
Extension Builder in Northolt
CONSTA Ltd - small construction company based in London, and characterises in flexibility to complete various jobs . There is list of different small or awkward completed jobs in our portfolio as well as more significant projects as loft conversions, extensions, full house reconstructions, new build and Passive House construction as well.
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Latest review:
Extensions- 29 Aug 2021
Communicated well at the start with reasonable cost. work was done well but the finishing was not so great as expected. The end cost was very expensive. Charged by the hour, the team were very slow which was upsetting to see me pay for time where they sat around not doing much. Ensure to agree fixed price. Communication after job is poor, double glazing has warranty which now not being able to communicate with kostas having to pay to get things done that should be covered in warranty. Central heating give huge problems. Do not use for big jobs
GNC Construction Ltd.
No reviews yet
Extension Builder in Northolt
GNC Construction is a construction company focused to satisfy and serve clients wich have residential and commercial projects. We deliver high-quality building projects across London and beyond . We have years of domestic and commercial experience under our belt, no job is too big or small. We can build anything, whether you need your property renovated or an extension added on, whether you need to modernise and enlarge your office building you can count on us.
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Iman singh
No reviews yet
Extension Builder in Northolt
I take real pride in being dependable, honest, and detail-focused. As a handyman, I understand that it’s often the small jobs that matter most to people – and I never cut corners. I show up on time, communicate clearly, and finish every job to a high standard. Whether you need a quick fix or a list of jobs sorted, I’m the person who will treat your home with care and get things done properly. Most of my work comes from word-of-mouth and repeat customers – which I believe says a lot about the trust people place in me.
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Pointview
Rating: 5 out of 5
Extension Builder in Northolt
At .pointview, we take pride in providing reliable, high-quality property maintenance and improvement services across London. With years of hands-on experience, we offer a wide range of services including painting and decorating, general home repairs, gardening and outdoor maintenance, and other handyman tasks, all delivered with care and attention to detail. We believe in honest communication, fair pricing, and doing the job right the first time. Whether it’s a small fix or a larger renovation, every project is treated with the same level of professionalism and respect for your home or business. Our goal is to make every customer feel confident and satisfied with the results. We show up on time, keep our work area clean, and ensure that each job is completed to a high standard. If you’re looking for dependable, skilled tradesmen who value quality and customer satisfaction, we’d be happy to help bring your project to life.
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Latest review:
Painting & Decorating- 23 May 2026
Thanks to Daniel for his help with painting in my hallway. I recommend him for his hard work and good painting skills. He is also pleasant to deal with. Many thanks
Leon building contractors limited
Rating: 5 out of 5
Extension Builder in Northolt
Hi.Welcome to our profile. We are well established building company working in London and surrounding areas. We are specialists in loft conversion and extension. All kind of building works undertaken.also happy to provide photographs and references of our previous happy customers.We offer free quotes.Fully insured,skilled trades men. Finish projects on time limit to suits you. We are proud member of Association of Master Tradesmen and check a trade. thanks for visiting our page.
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Latest review:
Extensions- 25 Apr 2025
we recently had the pleasure of working with Leon building contractors limited, and i cant recommend them highly enough! They carried out a single story rear extension, an internal garage conversion and porch to the front of the house. On top of that they installed our new kitchen and toilet suite downstairs all finished to a high standard. From start to finish Vic and his team were amazing nothing was too much trouble and were always happy to do anything without a fuss. Their attention to detail was first class. It wasn't only us who was impressed but our neighbors commented how friendly, respectful and hard working they all were and have already asked for his contact details. Vic trade contacts also helped us with windows/bi-folds and quartz worktops all high quality at much cheaper prices i could find myself! Thanks again to Vic and the team for doing such a brilliant job, we have no hesitation to use again in the future!
O&L Renovations
Rating: 5 out of 5
Extension Builder in Northolt
I've been working in Buiding all my working life. I undertake full referbs and smaller jobs. My work is to the highest standard
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Latest review:
Handyman- 3 Sep 2017
Good work, good price and done quickly without any hassle. Highly recommend Jamie and his team.
Loftxtnd Limited
Rating: 5 out of 5
Extension Builder in Northolt
Hello! We are offering full range off work:full refurbishment,loft conversion,house extensions,driveway!
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Latest review:
The project lasted from July 2023 to Feb 2024 and comprised of: 1. Single story rear extension with new kitchen and underfloor heating 2. 75m2 patio 3. Internal reconfiguration including removal / installation of walls, new flooring, plumbing (including new boiler), new door frames, doors and skirting, redecoration, carpentry for cupboards 4. Ventilation of existing roof The team are both friendly and professional with Alin always on hand to manage any questions / situations as they arise. The work is clearly costed and every two weeks a valuation takes place to ensure transparency of work undertaken both in original scope and any extras. The quality of the build was excellent, something the building inspector commented on. Alin was recommended to me based on past work, and I in turn would highly recommend him.
LeveLine General Builders
Rating: 5 out of 5
Extension Builder in Northolt
LeveLine General Builders has grown steadily over recent years. We pride ourselves on customer service and attention to detail. We offer a full architectural and design service to ensure we deliver quality construction projects from start to finish, keeping the customer fully informed at all stages.
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Latest review:
Bricklaying- 27 Feb 2021
Andrew was prompt, efficient and produced high quality work. From the start, he made us feel comfortable we had given the job to the right person. I am extremely pleased we chose to use Andy and I will definitely recommend his services and use again should the need arise. Thank you very much for an outstanding job and pleasant experience.
LMVContruction LTD
Rating: 5 out of 5
Extension Builder in Northolt
With 28 years experience we are an friendly and local building company who can help with all your home improvements, whether it be a new bathroom, kitchen, plumbing job, painting and decorating or a complete refurbishment We provide a free no obligation quote We understand the need to provide top quality workmanship and great customer service, at a reasonable cost. We guarantee all our work and are covered by Public Liability Insurance.
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Latest review:
Conversions - General- 28 Jan 2025
We were absolutely delighted with Lino and his services. He was incredibly patient , as our flat purchase was delayed. We required a total gutting off our flat, with new kitchen and bathroom, new flooring, painting, and all the rest. He had great communication throughout. He showed up on time with his team each day , and was so professional throughout. We went to Lino for advice throughout the process. He never said any of our plans were not possible- he always either said yes, or provided another option. This was such a great help. I would recommend Lino to anyone. We are absolutely delighted with our flat.
Brick House Builders LTD
Rating: 5 out of 5
Extension Builder in Northolt
Hi, I’m Jatinder. I’ve been working in the building trade for 15 years now. I’m qualified as an electrician and a gas safe register. I specialise in building new houses, loft conversions, extensions, and house renovations.
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Latest review:
They were very professional and quote provided was very efficient and cost effective. The job was finished on time. High recommend.
360Build Solutions Ltd
Rating: 5 out of 5
Extension Builder in Northolt
360Build Solutions Ltd - specialised in Extensions (single or double storey), Conversions - Loft, Garage, Full Refurbishments including Kitchens, Bathrooms, Home Cinema and complete New Builds - Home Office, Gym. We deliver top quality of work and we always look at many options to come to the most logical and profitable solutions for our clients and to build long and lasting relationships. Free site visits and Estimates - learn more about us in About...
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Latest review:
Extensions- 17 Nov 2019
Marius is the best builder ever! I can not recommend Marius enough, if he can do your job I would bite his arm off! He and his team are hard working, efficient and tidy. Nothing was too much trouble, the job barely ran over schedule and I now have the most fabulous new home! This is the way building work should be done!!
Marangoni Construction
Rating: 5 out of 5
Extension Builder in Northolt
We are dedicated to building quality projects and our wealth of experience and efficient working methods mean that with us on board, you get more - more choice, more cost savings and a quicker turnaround.We are a hard workers,good organiser,sociable,loyality,honest
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Latest review:
Hard working and experienced professional with large experience in mid-sized residential projects. Dyone always tries to go the extra mile to please the client. He has worked in several European countries giving him access to better knowledge of materials and suppliers. Great to work with.
Mannat Construction
No reviews yet
Extension Builder in Northolt
With over 20 years of experience in the building industry, I specialise in high-quality house extensions and loft conversions that add space, value, and long-lasting quality to your home. I take pride in delivering work to a professional standard, with a strong focus on reliability, clear communication, and attention to detail. From the initial design stage through to completion, I work closely with customers to ensure every project is carried out smoothly, safely, and to the agreed timeline. Whether you're looking to expand your living space, create an extra bedroom, or fully transform your property, I bring the skills and experience needed to deliver results you can trust. I’m committed to providing honest advice, transparent pricing, and a clean, tidy working environment. Customer satisfaction is extremely important to me, and much of my work comes from repeat clients and recommendations. I look forward to helping bring your next project to life.
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Richard651LTD
No reviews yet
Extension Builder in Northolt
⸻ Welcome to RICHARD651LTD – Where Quality Meets Color At RICHARD651LTD, we believe that a fresh coat of paint can do more than just change the look of a space—it can transform how you feel in it. Whether you’re looking to brighten up a single room or give your entire property a new lease on life, we bring skill, precision, and a passion for detail to every project. With years of experience and a reputation for reliability, we specialize in: • Interior & exterior residential painting • Commercial painting • Surface preparation & repair • Color consultation • Eco-friendly paint options We take pride in using top-quality materials, staying on schedule, and leaving every job site spotless. Most importantly, we listen—your vision, your timeline, and your satisfaction are at the center of everything we do. Let us help you bring your vision to life, one brushstroke at a time. Contact us today for a free quote and discover the difference of working with true professionals.
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HS Building
No reviews yet
Extension Builder in Northolt
i been working for 12 years. we always provide neat and clean service, everything should be in rule and regulated.
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JBS Jonay Building Services Ltd
Rating: 5 out of 5
Extension Builder in Northolt
Jonay Building Services LTD has been a consistent and trustworthy Construction Company in North London since 2004.We operate all over London and surrounding areas. J.B.S undertakes a great range of works for a huge variety of clients; From residential extensions, loft conversions and renovations, to commercial landscaping and shop fitting. Whatever your project we have a solution for you.
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Latest review:
Restoration & Refurbishment- 13 Jun 2023
This company was very professional. The work was completed on time and to a high standard. The work was also, good value for money. I would recommend JBS services to anyone seeking either home or business general refurbishment and building works.

4.2

Top rated Extension Builders

Our Extension Builders in Northolt, 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 Northolt?

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

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

What are the hourly rates of extension builders in Northolt?

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

Find extension builders in Northolt with MyBuilder

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

Step 2: Compare different extension builders in Northolt

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

Step 3: Hire Northolt extension builders with confidence

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

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

What to ask a Northolt extension builder before hiring?

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

An extension builder in Northolt 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 Northolt 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 Northolt?

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 Northolt 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 Northolt 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 Northolt

Can an extension builder in Northolt help with planning permission?

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

Many Northolt 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 Northolt help with materials and finishes?

Yes, most extension builders in Northolt 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.