Extension Builders in Northwood

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.8 (17 reviews)

Easily find verified Northwood Extension Builders. Just post your job to get quotes from MyBuilder's Extension Builders in Northwood.

Select a service

How it works

Post your job for free

Tell us about your job, and we’ll alert suitable tradespeople in your area. It’s simple and free.

Tradespeople respond

Once your job is posted, you’ll get responses from interested tradespeople through the website.

Review profiles and choose

Browse profiles, work history, and feedback, then choose who you wish to share your details with.

Some of our top rated extension builders in Northwood

2667 Results

Sort by:

George Eid Haykal
Rating: 5 out of 5
Extension Builder in Northwood
I am a construction contractor specializing in a wide range of refurbishment and renovation projects. I have established a strong network of engineers and tradesmen who possess diverse specialties and expertise.
Get in touch
Latest review:
I highly recommend William Haykal. We hired him to renovate our entire 2 bedroom, 2 bathrooms flat, he’s done the job in just 19 days and the end result is simply stunning. His attention to details, craftsmanship, and professionalism exceeded my expectations. From the initial consultation to the final touches, he made the process seamless and delivered outstanding results. I couldn't be happier with his work!
AXM Construction (London) Ltd
Rating: 5 out of 5
Extension Builder in Northwood
Hello We are a team which we’re happy to help make your work easy and nicely done. Our first priority is the Client. We try our best to get the job done in the right way, and soon as possible.
Get in touch
Latest review:
Carpentry- 18 Dec 2024
Excellent work. Finished the job on time. Tidy and neat finishing and reasonably priced.
Fanel Hij
No reviews yet
Extension Builder in Northwood
Home renovations including :Electrical , plumbing , structural works, drainage and damp proofing
Get in touch
Erik Novak
Rating: 5 out of 5
Extension Builder in Northwood
I’m mostly working on my own. Always discussing any work or changes with customers before going ahead with it.
Get in touch
Latest review:
Handyman- 24 Apr 2026
Helped us move a large shed. Turned up on time, made himself available, and handled a tricky move with care. Easy to work with and good communication throughout.
Ardent home improvements
Rating: 5 out of 5
Extension Builder in Northwood
We are a Passionate & Enthusiastic Building Company, Offering a Complete Refurbishment and Building Service to Both Residential & Commercial Property Owners.
Get in touch
Latest review:
Bathroom Fitting- 13 Oct 2015
Reece and his father did a great job in our bathroom and he was a real pleasure to deal with . He went above and beyond the role as he had to order and collect a bath end panel as he suggested it would be a better match from the one I had selected . He was correct in this. He is he first builder I have ever known to suggest an improvement, source it and collect it as part of the job !! I would thoroughly recommend him. :)
Steel Frame Systems
No reviews yet
Extension Builder in Northwood
A unique building firm that specialises in Light Gauge Steel frame construction. A modern method of construction systems that meets all building regulation requirements and offers a cost effect and fast method of building for our clients. We under take work from extension to large scale developments all made from our system.
Get in touch
Bartlomiej Basiak
No reviews yet
Extension Builder in Northwood
Professional builders
Get in touch
Archian LTD
No reviews yet
Extension Builder in Northwood
Whether you are expanding your existing living space or building a new home from the ground up, our architectural design and planning services ensures your project begins successfully. By securing all necessary documentation from the outset including planning permissions and construction drawings we facilitate a smooth project progression. Our comprehensive support enables you to embark on your construction journey with confidence. Through close collaboration with your architects and structural engineers we guide you through all design and planning aspects. This includes liaising with your local council adapting early designs for optimal results and maintaining compliance with strict regulations. Our expert guidance simplifies the complexities of design and planning
Get in touch
IDEAL Carpenters LTD
Rating: 5 out of 5
Extension Builder in Northwood
Hello I am a skilled carpenter, with over 23 years experience working in and around London, I can undertake most all jobs concerning building works around the Home but also have a team of reliable sub trades including “Gas Safe engineers” and qualified electricians, If you need any work done, by some one you can trust and rely on then please don’t hesitate to short list me, for your next project, Regards Agron
Get in touch
Latest review:
Conversions - General- 28 Jun 2026
We recently had our detached single garage converted into a fully usable room by Agron and his team, and we couldn't be happier with the result. The project involved replacing the garage door with matching brickwork, raising the roof, installing new windows and a door, insulating the garage, plaster boarding and skimming throughout, and rendering and painting the exterior. The work was completed to an exceptionally high standard. Agron and his team were fantastic from start to finish. They were incredibly friendly, professional and hardworking, completing the project quickly without ever compromising on quality. Communication was excellent throughout, they kept us updated on progress and always made sure we were happy with how the project was proceeding. They were also very accommodating and happy to adapt to any requests or changes we made along the way, making the whole process stress free. The attention to detail and pride they took in their work really shows in the finished result.
Soraya Construction Ltd
Rating: 4.2 out of 5
Extension Builder in Northwood
I am running construction projects for over 25 years. My projects include: construction houses, extensions, lift conversion, comercials, external and internal renovation, pavements.
Get in touch
Latest review:
Restoration & Refurbishment- 28 Apr 2024
I highly recommend these people if you want to be fleeced, taken advantage of, treated appallingly and work left unfinished. The standard of work is below average. If you want high quality finishing do not come here. I’ve had to spend a lot to redo a lot of their mistakes and mess. If Jerzy could charge you for every single nail he would, so beware. And when you challenge, they get aggressive and nasty. Very unprofessional. Do yourself a favour and keep away. So thanks Jerzy and co for a load of stress and rubbish. I am happy to talk to anyone and advise against these people.
Master Craft building & landscaping services
No reviews yet
Extension Builder in Northwood
Master craft building and landscaping services are a very passionate company when it comes to their work and their customers. We give a brilliant customer service and make sure the customers have updates going on throughout the time that we are spent with them. We cover all building and landscaping.
Get in touch
Vali colour
Rating: 5 out of 5
Extension Builder in Northwood
Hello my name is Vali , I have been working in the construction industry 20+ years in this time I have run a small business in Italy ,built houses in Romanian and I am currently working in London as a bricklayer .
Get in touch
Latest review:
Bricklaying- 1 Oct 2019
Excellent work on budget and time
Shah Builder
No reviews yet
Extension Builder in Northwood
Please check out our work on instagram Shah_builder785 Please only shortlist us if you are serious about instructing as this website charges us for every shortlist. We provide high-quality home improvement and renovation services. We specialise in kitchen installations, bathroom fitting, plastering and dry-lining, as well as extensions, structural alterations, and full house renovations. We pride ourselves on reliable workmanship, clean finishes, and attention to detail. Whether you are updating a single room or undertaking a complete refurbishment, we work closely with you to understand your vision and deliver results you can be proud of. Our team is professional, respectful of your home, and committed to completing every project on time and to a high standard. We use quality materials, proven methods, and clear communication throughout, ensuring a smooth and stress-free experience from start to finish. If you are looking for a builder you can trust to deliver great results without the hassle, we would be happy to help.
Get in touch
Sorin Dobrila
Rating: 5 out of 5
Extension Builder in Northwood
I've been in trade all my life, and most of the time engaged in: 1. Property Renovations and Remodellings – involving extensions, conversions, repairs and refurbishment works on residential properties. 2. Small/middle size commercial projects – involving repairs and refurbishment works for commercial clients.
Get in touch
Latest review:
Extensions- 25 Aug 2021
Having had bad experiences in the past with other builders, this time we tried to do our homework properly before hiring someone. We couldn't have chosen a more competent and professional builder! We obviously asked around and had many quotes (some ridiculously expensive, others didn't even seem to understand what we wanted to do) but Sorin immediately impressed me with his detailed and fair quote, knowledge and lots of suggestions (he's the kind of guy that immediately gives you the impression that he knows what he's talking about). We encountered some issues during the works (which is to be expected if you didn't build the place yourself) but Sorin and his team did an amazing job and always gave us regular updates. End result? Work completed on time and a new construction that is exactly what we asked for (plus other things here and there that he kindly sorted while he was on site!)
London builders limited
No reviews yet
Extension Builder in Northwood
London Builders ltd ??????? 1. General builder/ property refurbishment:: 2. House refurbishmentsRenovations/ Extensions / Garage conversions 3. Loft / Attic/ Basement conversions , shop remodelling 4. New builds 5. Loft conversions 6. Complete refurbishments • All building services ⤵️ ✅Plastering / Skimming ✅Carpentry ✅Brick work ✅Decorating / Painting ✅Roofing ✅Gardening / Landscaping ✅Wooden floors ✅Kitchens / Bathrooms Refurbishments ✅Wall and floor tiling ✅Fencing / Paving / Driveways / Porches ✅Renovations / Extensions / Garage Conversions ✅Loft / Attic / Basement Conversions ✅Heating / Plumbing / Electrics ✅ New Builds ✅. Basements ✅. Loft Conversions ✅ Extensions ✅ Complete Refurbishments ✅ Garage conversions ✅. All Building services ✅ Painting and Decorating ✅ All Plumbing services ✅ All Electrician Services
Get in touch
ASECO Electrical Solutions
Rating: 5 out of 5
Extension Builder in Northwood
I'm a qualified and self employed electrician with over 10 years experience in electrical industry. I specialise in all aspects of domestic and commercial installations. With me you will get high quality standard of work and reliable services at competitive price.
Get in touch
Latest review:
Electrical- 29 Apr 2022
Did really great work for a fair price. Will definitely use again. Very informative and he helped get plugs in the right place

3.8

Top rated Extension Builders

Our Extension Builders in Northwood, are rated 3.8 out of 5 based on 17 reviews from customers like you.

Quality screening

Easily find verified local tradespeople. Just post your job to get quotes from tradespeople near you across the UK.

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

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

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

What are the hourly rates of extension builders in Northwood?

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

Find extension builders in Northwood with MyBuilder

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

Step 2: Compare different extension builders in Northwood

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

Step 3: Hire Northwood extension builders with confidence

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

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

What to ask a Northwood extension builder before hiring?

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

An extension builder in Northwood 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 Northwood 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 Northwood?

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 Northwood 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 Northwood 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 Northwood

Can an extension builder in Northwood help with planning permission?

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

Many Northwood 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 Northwood help with materials and finishes?

Yes, most extension builders in Northwood 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.