Extension Builders in Northolt

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 Northolt

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Doherty Builders (Tedd) Limited
Rating: 5 out of 5
Extension Builder in Northolt
An honest good quality, reasonably priced family builders. Over 30 years experience. We take pride in working to a high standard and get great satisfaction knowing clients are happy with our work, many return to us. Once starting we never leave until the job is finished
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Latest review:
Extensions- 30 Jan 2022
Christian was great to work with - communicated clearly at every step of the project, was flexible with plans as they changed a bit during the build, and completed the work on time. He managed the sub-contractors (electrician) which made it very easy for us. Highly recommend him!
CJ Carpentry
Rating: 5 out of 5
Extension Builder in Northolt
We are joiners by trade, passionate on what we do over the years. We have combined over 32 years of experience on carpentry/joinery itself. As there is always demand, we started delivering any type of construction work, full house refurbishment, kitchens, bathrooms etc. Always preserving our high quality of work, honesty, professionalism. Fully committed to anything we can come across, always find clients, architects solutions so we can achieve everyone’s dream, expectations.
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Latest review:
Carpentry- 18 May 2022
Very professional and friendly tradesman. Work was carried out perfectly and I couldn't recommend him high enough. Brilliant work ethic and he went the extra mile to carry out the works impeccably. Privellage to work with him.
Otters Group Ltd
Rating: 5 out of 5
Extension Builder in Northolt
Welcome to Otters Group Ltd page, With over 20 years of experience in the construction industry, we deliver high-quality construction solutions for both residential and commercial projects. From start to finish, we manage every aspect of construction with professionalism, precision, and care. Our team of skilled, reliable, and dedicated professionals is committed to exceeding expectations by delivering projects on time, within budget, and to the highest standards of quality. Customer satisfaction is at the heart of everything we do. We work closely with our clients throughout the construction process, upon completion, and during the defect liability period to ensure long-lasting results and peace of mind. **Your time, cost, and quality are our priority on every project.**
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Latest review:
Painting & Decorating- 19 Jun 2024
I recently had the pleasure of working with Mahdi and his team, and they were excellent. They were knowledgeable, did the work efficiently, and cleaned up thoroughly afterward. I was extremely satisfied with the quality of their work. I would highly recommend them and look forward to working with them again in the future.
Your Hubb Ltd
Rating: 5 out of 5
Extension Builder in Northolt
We provide building & electrical services to Clients in London and surrounding counties and pride ourselves in quality workmanship and a professional service putting our Clients at the heart of what we do. Before the start of the project everything is made clear so our Clients know exactly where they stand. Approved by the NICEIC, our Clients are covered by the six year guarantee. All of our work is fully insured and guaranteed. Referencing and site visits are available upon request.
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Latest review:
Electrical- 8 Jun 2020
Thank you for great work. Anthony was very helpful and professional. I would recommend him.
Lezha Building Ltd
Rating: 4.9 out of 5
Extension Builder in Northolt
LEZHA BUILDING LTD Hello my name is Astrit. I’m the Director of the company We have a lot of experience in different trade so my business started in Italy but from 2015 we are based in london do not hesitate to contact no matter small or large work, we will reach you wherever you are.Thanks 🙏
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Latest review:
Tiling- 10 May 2019
As per the previous reviewer I don't usually hire tradesmen when there is only limited feedback, but given the glowing report I took the risk. And it proved to be a great decision. Astrit was great - clear communication, arrived when he said he would, sought our opinions on the key decisions and gave some great advice, before ultimately doing a great job for a reasonable price. A pleasure to deal with and will hire again for any future tiling work. Thanks Astrit.
FSB Company (UK) LTD
Rating: 5 out of 5
Extension Builder in Northolt
FSB is a well-organized contracting company with a team experienced in large-scale development projects with leading UK construction companies. Based primarily in London, we offer a variety of self delivered services, including complete extensions, and conversions, small works, structural alterations, steel work installations, ground work (foundations, drainage, concrete sub and superstructures), hard landscaping and paving and soft landscaping. We manage our sites carefully and have a digital site management tool kit. Our fully managed service connects skilled tradespeople with experienced construction management directly ensuring attention to detail that begins with our Contractors Proposals and continues through to practical completion and aftercare.
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Latest review:
Extensions- 17 Nov 2025
Freddie, Kaz and Dan are a great team. I felt they were friendly and professional throughout. Any slight niggles were discussed and solutions found, quickly and professionally. They were respectful and went out of their way to get on with all the neighbours. Over all I would say they are a team of very nice people, who care about what they do and take pride in achieving the result their clients are after.
Pms builders ltd
Rating: 1 out of 5
Extension Builder in Northolt
Extension, loft , electric , plumbing , brickwork , paving ,bathroom and kitchen
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Buildwise UK Construction Limited
No reviews yet
Extension Builder in Northolt
At the heart of every successful construction project is a team that understands more than just bricks and mortar. It understands people, purpose, and the importance of delivering on promises. Our company has built its reputation on exactly these principles. We are a trusted construction partner known for reliability, quality workmanship, and a collaborative approach that places our clients’ needs at the forefront of everything we do. With years of industry experience, we have established ourselves as a dependable and professional construction company capable of delivering projects of varying scale and complexity. From residential developments and commercial builds to renovations, refurbishments, and specialist projects, we approach every assignment with the same level of commitment and care. Our reputation has been earned through consistent performance, transparent communication, and a genuine dedication to excellence.
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S.J Shatri Construction Limited
Rating: 5 out of 5
Extension Builder in Northolt
I believe great service comes from professionalism, attention to detail, and genuine care for customers. I’m dedicated to delivering reliable results, excellent communication, and an experience that leaves clients confident they made the right choice.
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Alb Homes Ltd
Rating: 5 out of 5
Extension Builder in Northolt
Alb Homes Ltd is a family-run business that’s evolved from humble beginnings. With over 25 years of experience and 100+ projects completed, we have honed our skills to a level recognised by the Federation of Master Builders. We are always on hand to answer any questions and place a strong emphasis on documentation – allowing you to have a continuously transparent understanding of your project. When building with Alb Homes Ltd, you can rest easy with the confidence that you are in competent hands.
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Latest review:
Extensions- 26 Sep 2023
Well priced completed the project on time even though there was some unforseen works along the way. I had a back extension and some steel beams installed very happy with the the completed works
Top K Construction and Design LTD
New on MyBuilder
Extension Builder in Northolt
At Top K Construction and Design LTD, your vision is our project. With over 20 years of experience, we have successfully completed a wide range of projects across London, from new builds and refurbishments to garages and extensions. We are passionate about turning your ideas into reality and prioritize your satisfaction in every step of the process. We love taking on new challenges and working closely with our clients to create spaces that truly meet their needs. Let us bring your dream project to life — quality, reliability, and customer happiness are at the heart of everything we do.
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AEE Construction Ltd
Rating: 5 out of 5
Extension Builder in Northolt
General renovations, electric, plumbing, decoration, painting, kitchen fittings, tiling, flooring, bathrooms, extensions, loft conversions and property maintenance
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Latest review:
Handyman- 27 Jul 2023
Very professional and polite man. Job done neat and professionally. Would highly recommend.
Buckleys building services ltd
No reviews yet
Extension Builder in Northolt
We are a family run Building business, building new homes, extensions, loft conversions, kitchens & refurbishments. We take care of all your needs from design to completion.
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Gur construction ltd
No reviews yet
Extension Builder in Northolt
Gur construction ltd company is giving less costs as compared to others nd free valuation nd we provide good work
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DJG BUILDING WORKS
No reviews yet
Extension Builder in Northolt
DJGBUILDINGWORKS offers a professional service specializing in loft conversions, extensions and refurbishment we are over 10 years providing a high standard work and high standard finish focusing on quality or work
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Balazs Kalcso
No reviews yet
Extension Builder in Northolt
Cleaned and properly stored all painting and decoration equipment and supplies at the end of each workday and removed trash and debris from work areas. Bid on projects,prepped sites,and completed projects in line with customer specifications and requirements. Minimised disruption of client space and thoroughly cleaned up after completion of each job. Working as a part of a larger team. Painted surfaces using brushes, paint rollers. Prepping sites ready for handover. Applied putty,wood filler,wall filler,and caulks to prep uneven surfaces. Applied primer,paints, varnised and lacquers to walls and surfaces. Prepared trim walls and ceilings for painting by cleaning.
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4.1

Top rated Extension Builders

Our Extension Builders in Northolt, 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 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.