Extension Builders in Canonbury

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.1 (18 reviews)

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

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 Canonbury

3507 Results

Sort by:

Carnot Construction Limited
Rating: 5 out of 5
Extension Builder in Canonbury
Carnot Construction are committed to ensuring our clients are satisfied from beginning to end, we aim to take the stress out of building work and complete all projects as swiftly and cleanly as possible. We ensure our clients are in safe hands with strict contracts in place to protect both parties. We specialise in Extensions, New builds, Loft Conversions, General Conversions, Kitchen and bathroom renovation/fitting.
Get in touch
Latest review:
Extensions- 15 Aug 2018
100% RECOMMENDED Michelle and her partner measured up and competitively quoted within a short space of time. She was then very patient and supportive when unforeseen planning issues popped up and set the start date back by quite some time. Once building started, all questions were promptly answered by either the site manager or Michelle, both being available at all times. I was away for the duration of most of the job and it was very reassuring to know that I was leaving it all in capable and honest hands. The workers were very proficient and tidied up after themselves at end of each day. They also put in some very long hours at times to hasten the work. I was also impressed by the handling of unexpected problems during the building (mainly invasive tree stumps!). I am absolutely thrilled with the end result. High quality workmanship and a beautiful building which I am sure will last many years. I would certainly recommend them without a doubt.
Alex
Rating: 5 out of 5
Extension Builder in Canonbury
Hi I offer good quality work which includes general construction works, painting interior, exterior, walls and ceiling repair and wood work I also offer handy man jobs, decking installation and repair,groundwork jobs.
Get in touch
Latest review:
Carpentry- 4 Jun 2026
I recently had Alex install my 12-foot pegola, and I couldn't be happier with the result. From start to finish, Alex was patient, listened carefully to what I wanted, and took the time to ensure everything was done properly. He is hardworking, reliable, respectful, and kept the work area tidy throughout the project. What impressed me most was how efficiently he worked without compromising on quality. The pegola was completed to a very satisfactory standard, and the finished result looks fantastic. I would have no hesitation in recommending Alex to anyone looking for a skilled and trustworthy tradesperson. I would gladly use his services again for future projects.
S&H construction London
Rating: 5 out of 5
Extension Builder in Canonbury
We are small family run business, we have over 20 years experience. We cover most work, plumbing, bathroom and kitchen fitting, plastering, ground work, tilling, brick layering and much more.
Get in touch
Latest review:
Bathroom Fitting- 13 Oct 2024
Excellent company. Great job on our bathroom refurbishment.
Chepine Builder
Rating: 5 out of 5
Extension Builder in Canonbury
We gain our reputation always completing the job with customer satisfaction and if there is something wrong, we always come back and solve the problem. We never let our customer down.
Get in touch
Latest review:
Lenko was straight-talking, gave considered advice and completed the job quickly at a reasonable price, we were very happy with the job.
Panoramic Homes Ltd.
Rating: 4.6 out of 5
Extension Builder in Canonbury
With over 12 years of experience in Civil Engineering & Project Management, we are specialised in Architectural Planning, Structural Designs, construction, renovation and refurbishment works. We have a dedicated team for the type of works. Support from Architects and Civil Engineers, you get FREE professional advice. We are very competitive in the market and give assurance and guarantee of all works. You will have piece of mind with us as we will ensure quality managed work from start to finish.
Get in touch
Latest review:
Extensions- 9 Aug 2021
After a long selection process, we decided on Muhammad Ansari of Panoramic Homes, and now the project has been completed, we ( as a family ), are happy and pleased we made the right choice. Trust, workmanship, good solid project management, and friendly reliable builders were all attributes we were looking for. All their references checked out, and came highly recommended ( which was important for me ), as I know I wouldn't be on site everyday. Our project was a rear extension, plus garden overhaul, plus a new drive, and a new front porch. Mo and Tonys team really did an excellent job and I we can't stop praising them to our friends and families . While the project was during the start of the pandemic, and continued throughout 2020, The team respected all the rules of engagement with the build, and my family during this difficult period. Which we very much appreciated ( especially the children ). So if your looking for a good solid managed project, with good pricing and good workmanship, and trusted and tidy builders, then I'm happy to recommend Panoramic Homes. I'll for sure send more people their way.
Lita construction ltd
Rating: 4.7 out of 5
Extension Builder in Canonbury
All kinds of work,Framework,Basments,groundworks, refurbishment, extension,lots years experience in this field predominantly working on housing developments of different sizes.
Get in touch
Latest review:
Groundwork & Foundations- 1 Apr 2024
Concrete job
QBS Property Maintenance LTD
No reviews yet
Extension Builder in Canonbury
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.
Get in touch
Virtu Maison Ltd
No reviews yet
Extension Builder in Canonbury
Virtu Management is a newly established main contractor specialising in high-end residential construction. Led by a director with five years of project management experience in the luxury housing sector, the company delivers high-quality refurbishments, bespoke fit-outs, and full renovations. Combining strong technical knowledge with a detail-driven approach, Virtu Management provides reliable project delivery, clear communication, and seamless coordination with clients, designers, and specialist trades. Focused on quality and professionalism, the company is committed to creating exceptional homes finished to the highest standards.
Get in touch
George Eid Haykal
Rating: 5 out of 5
Extension Builder in Canonbury
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!
hrs build ltd
No reviews yet
Extension Builder in Canonbury
We are specialize company for interior and exterior ,extension refurbish painting and decoration chimney removal roof construction loft conversions .
Get in touch
Fiji homes and properties ltd
No reviews yet
Extension Builder in Canonbury
We are master builders, and an excellent project management company. We specialise in massive renovation projects such as renovations, extensions and new builds projects.
Get in touch
Novus Construction Limited
No reviews yet
Extension Builder in Canonbury
Novus Construction Limited is a trusted building contractor dedicated to delivering exceptional service, high-quality workmanship, and reliable project management. We take pride in completing projects on time, within budget, and with clear, consistent communication throughout the process. To ensure your complete satisfaction and seamless communication, we assign a dedicated project manager to oversee every aspect of your project from start to completion. We specialise in a wide range of services, including but not limited to: • New Builds • Extensions • Loft Conversions • Refurbishments • Bathroom & Kitchen Fitouts • Carpentry & Joinery • Tiling If you’re ready to discuss your project or need expert advice, don’t hesitate to reach out. We’d be happy to offer a free, no-obligation quote and help bring your vision to life.
Get in touch
M Stanley Solutions
No reviews yet
Extension Builder in Canonbury
With over a decade of experience, I bring precision and expertise to every job. From redecorating your home and refurbishing your office to revamping your garden, no task is too big or too small. Exceptional customer service is at the heart of my work—if you’re not happy, I’m not satisfied.
Get in touch
professional polish builder(london)
Rating: 5 out of 5
Extension Builder in Canonbury
I'm a builder (carpenter) with 19 years of experience in England. I do loft conversions and extensions - all building works. Carpentry and joinery is my main profession. I have a qualified bricklayer, electrician, plumber and others on my team who are happy to help. All works done by us coming with warranty and insurance.Dear potential client beware that we do not undertake structural building works without architectural drawings, structural engineer calculations etc. No time wasters please!
Get in touch
Latest review:
Extensions- 26 Apr 2018
Professional Polish builders (london) ltd,?this is a suitable name for this company. They built an extension and loft for me in the time standards set. They aren’t a cheap service but the professionalism of this boys goes beyond and above. I’ve seen a lot in my life and it was the third extension I designed for myself as I’m architect. It is hard to find an honest builder who will tell you the truth about what is waiting for you during the works. The job was done relatively quickly even when I changed my mind a few times and the weather this winter was cruel but Adam and Martin were always positive so do not believe any one who gives a fixed price and time - it’s impossible to do. Adam and Martin are fantastic organizers and skillful professional builders, his team are friendly,very funny and hard working guys. Open minded guys who will tell you straight on what things you can save money on and what not to. My dog has fallen in love with them. Safety and common sense is a priority to the crew. I would recommend these boys to everyone. thanks for your help and hard work!
SW Heating & Refurbishments Ltd
Rating: 5 out of 5
Extension Builder in Canonbury
SW Heating & Refurbishments is a local refurbishment company specialising in complete property refurbishments, extensions and loft conversions, new heating systems and boilers. We take pride in all of our work and our aim is to provide you with a quality finish, tailored to your budget. With over 19 years experience, we have built up an extensive team of tradesmen allowing us to provide an outstanding service. We are fully insured and all our work is gas safe and NICEIC certified.
Get in touch
Latest review:
Conversions - General- 20 Mar 2024
Charlie & Richard did a great job. They visited my property to get an accurate quote. They let me visit another property they are developing which gave me confidence that they were more than capable of my job. They carried out the work quickly and to a high professional standard. Wouldn't hesitate to use them again.
Plumb4All
Rating: 5 out of 5
Extension Builder in Canonbury
With over 20 years’ experience in the plumbing and building industry, this has enabled our team at **Plumb4All** to become a well-known and trusted company. We offer a 24/7 call out service and long term support for existing clients as a single point of contact for any future queries and issues. Our many happy and repeat customers find us through word of mouth and being fully qualified gives you the peace of mind that quality of service and very high standards are at the core of our values.
Get in touch
Latest review:
Bathroom Fitting- 7 Mar 2021
Very professional and very thorough Solved the problem efficiently Would definitely recommend.

4.1

Top rated Extension Builders

Our Extension Builders in Canonbury, are rated 4.1 out of 5 based on 18 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 Canonbury?

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

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

What are the hourly rates of extension builders in Canonbury?

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

Find extension builders in Canonbury with MyBuilder

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

Step 2: Compare different extension builders in Canonbury

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

Step 3: Hire Canonbury extension builders with confidence

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

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

What to ask a Canonbury extension builder before hiring?

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

An extension builder in Canonbury 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 Canonbury 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 Canonbury?

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 Canonbury 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 Canonbury 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 Canonbury

Can an extension builder in Canonbury help with planning permission?

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

Many Canonbury 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 Canonbury help with materials and finishes?

Yes, most extension builders in Canonbury 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.