Extension Builders in Canonbury

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4 (17 reviews)

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Some of our top rated extension builders in Canonbury

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MM
Rating: 5 out of 5
Extension Builder in Canonbury
We are a highly experienced kitchen and bathroom design and installation company with over 20 years of proven expertise in delivering exceptional results. We provide a comprehensive, end-to-end service—from detailed consultation and bespoke design through to precise, high-quality installation—or a dedicated installation service tailored to your specific needs. Our work is defined by technical accuracy, refined craftsmanship, and a deep understanding of both aesthetics and functionality. We deliver bespoke kitchen and bathroom solutions across a full spectrum, from well-specified standard projects to luxury, high-end installations, all executed with exacting standards and attention to detail. Operating throughout London and the surrounding areas, we are committed to delivering a consistently high level of service, underpinned by expert guidance and industry knowledge. Every project is approached with a structured, client-focused process, ensuring clear communication, efficient delivery, and outstanding results. Regardless of the size or complexity of the project, we work in close partnership with our clients to accurately interpret their vision and requirements—translating them into expertly crafted spaces that meet the highest professional standards.
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Latest review:
Kitchen Fitting- 7 Sep 2026
Michael our kitchen fitter was amazing and went beyond the call of duty, especially as he took over an old kitchen with old pipes. So he had to re adjust everything and take serious measures to make sure that there were no leaks even though it was quite an old system and he adjusted cabinets to bypass the protrusions. He’s very nice and honest and good to work with so you can be sure you’re in good hands with him.
BSM Interior Ltd
Rating: 4.8 out of 5
Extension Builder in Canonbury
Your search for qualified and skilled builders ends here. Made Construction Simple is a team of licensed and insured specialists builders in London with over one decades of combined experience. From extensive loft conversion, extension,refurbishments to bathroom and kitchen renovations, we offer a wide range of services. You can rest assured that we have the expertise to efficiently handle your construction project. Good and dependable work isn’t possible without the necessary qualifications. Every professional on our team is qualified and highly experienced. We undertake all aspects of planning, building and construction services according to the highest standards of workmanship. We prioritise quality, safety and consistency at every step of the way. Our services are compliant with local authority laws and government regulations. We pride ourselves on our exceptional attention to detail. In addition to superior functionality and durability, we don’t forget about how the final result looks. We strive to deliver the best of structural integrity and aesthetics.   Our professional builders go above and beyond to earn your trust. We are dedicated to starting and completing jobs on time for 100% customer satisfaction. If there are any unforeseen delays, you will be promptly informed and kept in the loop. We also ensure that every project is within the specified budget.
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Latest review:
Kitchen Fitting- 4 Aug 2026
Bled and his team was absolutely amazing and fair. He use all his knowledge and install my kitchen in best way can imagine. He install my kitchen units, worktop, all appliances, relocated washing machine, installed kitchen splash back and repositioning of sockets and fuse spurs. I definitely recommend Bled and I will definitely use him again near future. Thanks Bled!
ScutariConstruction
Rating: 5 out of 5
Extension Builder in Canonbury
Scutari Construction is a limited company based in London. We are a very reliable and professional team of tradesmen with over 10 years of experience on the building industry, committed to deliver the highest levels of quality and service to our clients.
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Latest review:
Extensions- 14 Apr 2021
Mel and team completely transformed our house in a very timely and professional manner. I honestly cannot say enough good things about him. The team works really hard and their model provides the fastest, highest quality construction at a reasonable price. Use these guys!
AJ REFURB SPECIALIST LTD
Rating: 5 out of 5
Extension Builder in Canonbury
With over 20 years of experience in the building industry, we have honed our skills to handle projects of all sizes. Our commitment to quality and craftsmanship ensures that every job is completed to the highest standards,
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Latest review:
Bathroom Fitting- 21 Jun 2025
Great company, attention to detail & Joe went over & above. I would recommend them highly. Thanks for such an awesome renovation, hope to do future projects with you 😊
Abi Building Services
Rating: 5 out of 5
Extension Builder in Canonbury
ABOUT ABS ABI BUILDING SERVICES ABS Abi Building Services is a trusted London-based building and renovation company specialising in high-quality residential construction and refurbishment projects. With a skilled and reliable team of experienced tradesmen, we deliver professional building solutions tailored to each client’s needs, budget, and vision. We work closely with homeowners, landlords, designers, and property developers to ensure every project is completed to a high standard with excellent attention to detail. At ABS, we focus heavily on: • Quality workmanship • Honest and clear communication • Reliability and professionalism • Clean and organised work environments • Strong client relationships • Delivering projects on time and within budget Our services include: • Full House & Flat Refurbishments • Extensions • Loft Conversions • Bathroom Renovations • Kitchen Installations • Structural Alterations • Plumbing & Heating • Electrical Works • Plastering & Rendering • Silicone Rendering Systems • Carpentry & Joinery • Flooring & Tiling • Painting & Decorating • Roofing & External Works • General Building Services Whether it’s a full property renovation or smaller improvement works, ABS Abi Building Services is committed to delivering a smooth, professional service and high-quality finish from start to completion. Based in London | Fully Insured | Residential Specialists Whttps://abibuildingservices.co.u
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Latest review:
Bathroom Fitting- 7 May 2026
Very happy with the new bathroom. Florent removed the old one, disposed of the waste and installed a walking shower wet room, a new toilet, a new sink and a vanity unit. The work was professional and completed to a high standard in good time; the quote was reasonable and the communication was very good. Happy customer!
MYCO Contractors Limited
Rating: 5 out of 5
Extension Builder in Canonbury
I am an experienced and fully insured builder. On average I and my team build and renovate 5 extensions per year. Our current or old clients are always ready to share positive feedback about our work. We work off the ready plans which are usually prepared by the clients themselves and approved by the local authority. As of now (30/03/2023) my availability to start the new project is late April or early May. Please get in touch and I will be happy to assist.
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Latest review:
Extensions- 4 Aug 2020
On a cold November evening, Tony and his team turned up to provide a quote and within a week this was received. The quoted price came in the middle of the pile, which was a good start and aligned closely to the ballpark figure I'd received from a friend who was also in the trade. We then visited a site they were finishing off, and Tony had the confidence to ask us to speak to the client without him there and they gave us the confidence to proceed. They started in January 2020 and rapidly moved through the works and engaged closely with my architect, Structural engineer and building control and proceeded based on their recommendations strictly. We lived in the property as build progressed and the team ensured that the site was secure every evening and we were safe. As COVID-19 hit and we went into Lockdown, the team continued to come and work (we were separated from them as the house was boarded up) and the only challenge was getting supplies. Tony scoured all over London, picking up items as best as he could and work continued. Once they'd broken through into the old part of the house they continued to progress rapidly and showed utter professionalism. The team lead's attention to detail is impressive, and he gave great recommendations on what would be the right approach when we were laying out features such as window sizing and lighting. The standard of work is excellent and I would highly recommend them.
AK Electrical Services
Rating: 5 out of 5
Extension Builder in Canonbury
AK Electrical services is part of Crest Construction & Interiors Ltd. We carry out full building works from foundation to the roof. We are specialised in basement and underpinning works. Our trade people are fully qualified and we work to the highest standard. We have many years experience in domestic electrical and commercial installation. We provide electrical services for all domestic/ commercial projects. We are registered in ELECSA PART P SCHEME, 17th edition. All works are guaranteed.
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Latest review:
Fully electrify a new rear, 2 storey side, porch extension and shed. Arek was always the first one on site, worked very professionally, interacted well with the other builders and was happy to accommodate minor changes to the project. He suggested improvements to the the lighting layout and configuration were taken aboard. I highly recommend him and I'll also be using him to change my house consumer unit in the coming weeks.
Fast5 Limited
Rating: 5 out of 5
Extension Builder in Canonbury
Are You Tired of Dealing with Builders? We Have the Solution! ✓ Honest and Transparent Pricing ✓ On-Time Project Completion ✓ One-Stop Shop for All Your Building Needs ✓ Residential and Commercial Construction Expert ✓ Health and Safety Compliant ✓ Regulatory Compliant ✓ Insured Don't let construction headaches ruin your home renovation dreams! Contact us today and experience the difference.
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Latest review:
I recently had the pleasure of working with Fast5 for the refurbishment and renovation of my house in London, and I couldn't be happier with the results. The team displayed a high level of professionalism, expertise, and attention to detail throughout the entire project. From the initial design phase to the physical construction, they demonstrated their commitment to customer satisfaction. The comprehensive range of services offered by them included architecture design, interior design, and physical construction, ensured that every aspect of my home renovation was handled with precision and completed to the highest standards. The team's expertise and experience were evident in their work.
2AM Construction
Rating: 4.6 out of 5
Extension Builder in Canonbury
Hi this is Ali I am electrical contractors with over 10 years of experience who covers all types of electrical work. I do both domestic and commercial installations, rewiring, fault finding, repairing, fire alarms, smoke alarms, emergency lighting, EICR Certificate
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Latest review:
Electrical- 3 Oct 2025
went very well - almost superb, maybe of 5 stars 4.9.
AVmen
Rating: 5 out of 5
Extension Builder in Canonbury
We are AVmen Construction We provide a range of Design and Build services to Luxury Commercial & High-End Residential properties in a professionally estimated, planned, and controlled manner: Bathroom Design, Reconfiguration, Refurbishment/Renovation 2D/3D CAD drawings and services for complex refurbishments Extensions, Conversions, Modernisation from the scratch Kitchen Extensions and Complete Kitchen renovations Building Shell & Core, Mechanical, and Electrical Services.
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Latest review:
Carpentry- 7 Sep 2020
Amiran delivered an excellent job. The sauna was supplied devoid of full clear instructions and materials and Amiran was able to solve all the issues in a timely and satisfactory manner. Very good workmanship, attention to detail and create problem solving. Would hire again.
HNL Construction Limited
Rating: 5 out of 5
Extension Builder in Canonbury
Home improvement company. Experience since 2005.Our job is our passion.Let us make Your dream project.Every job its important to us from small to big. We do: -kitchen -bathroom -loft conversion -extension -refurbischments -electric -plumbing -gardening …and many more
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Latest review:
Conversions - General- 23 Mar 2026
Pawel and his team are great - got them in for a few things now, from damp repair, knocking through an internal brick wall, moving a fuse box, installing a wood floor. Always good workmanship, easy comms and decent value! Have recommended to a few friends who are equally pleased.
JED BUILDERS LTD
Rating: 5 out of 5
Extension Builder in Canonbury
A limited company established in 2016. More that 8 years experience in construction business. We undertake all building works, big or small, managing and looking after project so the client can have the best results possible.
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Latest review:
Kitchen Fitting- 14 Dec 2018
Very lovely and professional and clean. Very prompt/punctual and worked efficiently , will be using them again to do more work in my property. Definitely with recommend them to anyone ! 10/10 from me ! Good service delivery
I.V.M BUILDERS
Rating: 5 out of 5
Extension Builder in Canonbury
I.V.M Builders Limited. Established in Stratford, we have worked in the building trade for many years, I.V.M Builders Ltd are a reliable, fully accredited and professional company operating in East London and North London. We are prideful in all the work which we undertake, taking great care to make sure that our client’s needs are met meticulously and professionally. All of our builders are qualified to undertake the task at hand, and we operate to all governed standards.
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Latest review:
Kitchen Fitting- 18 Nov 2023
The kitchen refurbishment exceeded my expectations! The attention to detail, modern design, Thank you for your expertise and professionalism throughout the process. I couldn't be happier with the results!
jawad
Rating: 5 out of 5
Extension Builder in Canonbury
Skilled and dependable worker with experience in wood construction and roof installation. I build and install wooden posts, frames, and plastic or timber roofing. I take pride in delivering strong, clean, and professional results. Friendly, punctual, and committed to customer satisfaction.
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Latest review:
Jawad was very professional and hard working. Our corner has said if he could give 6 stars he would! I reccomend him highly!
Soho Building and maintenance Ltd
Rating: 5 out of 5
Extension Builder in Canonbury
We are Soho Building and Maintenance Ltd, currently in our second year of business. We have an abundance of experience in the building industry with our own fully vetted trades including our own in house quantity surveyor for any large tenders. We undertake works of any amount no matter big or small, we can work with architects under minor works contracts
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Latest review:
Rear single story extension. Knocked wall out to extend kitchen. Craig -workman - very good. Lee and Dan project managed and were both excellent. Very please with everything, they turned up on time and when they said they would, cleaned up and finished build on time as agreed. I would recommend them to anyone.
Hills builders
Rating: 5 out of 5
Extension Builder in Canonbury
Hi I'm Lee a general builder with 25+ years experience, specialising in: * Landscaping * Groundwork’s * Brickwork * Roofing * Carpentry * Extensions/ Refurbishments * Emergency call outs I pride myself on being being highly knowledgeable and reliable, focusing on clear communication from the start to enable projects to be completed exactly what is envisioned by you, on time and within budget. Get in touch for a free no- obligation quote Regards Hill's builders
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Latest review:
Groundwork & Foundations- 10 Sep 2026
Professional and reliable. Lee did a brilliant job digging the trench for our 3-phase electricity upgrade. He was exceptionally polite, professional, and maintained great communication throughout. When unexpected delays cropped up, he handled them seamlessly and still completed the work right on time. Over the multi-day job, he kept all his tools and the site tidy and organised. We'll be looking to hire Lee again for future projects. Highly recommended.

Top rated Extension Builders

Our Extension Builders in Canonbury, are rated 4 out of 5 based on 17 reviews from customers like you.

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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.