Extension builders in Canonbury

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.5 (17 reviews)

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Some of our top rated extension builders in Canonbury

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CHIRO Alliance Limited
Rating: 5 out of 5
Extension Builder in Canonbury
Chiro Construction covers all types of building work including major renovations, lofts, extensions, commercial conversions and bespoke carpentry. We manage all aspects of the build from inception to completion, from demolition to decorating. With a proven track record of delivering a wide range of high-end projects, we have a 98% approval rating from over 50 positive reviews. Most of our work comes from previous client referrals. Call or email us today for a chat to discuss your project.
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Latest review:
Restoration & Refurbishment- 4 Sep 2020
Octavian is a really great guy, very reliable, never disappoint, maintained good communication with us all the time. As a customer, obviously the most important part is great craftmanship, we have used other teams before and you can easily tell the difference between his work and the others. From things such as painting (you can tell they have paint and sand multiple times to provide such great finishing), tile installation (the gap between each tile is tiny, and they are very flat), Octavian’s team can get them all done. This job involves a full flat refurbishment, so the flat was completely stripped, knocked down a few walls, install new pipes / wire etc. During his work he has spotted many things that we have not noticed before. Unlike some other contractors who do not care, they will just finish what they were asked to do and leave. Octavian spotted it and recommend us the best solution for it, to provide the best outcome for the project. It is important to find someone who do care about the customer and the project. We will use him again for our future projects. Thanks. Tommy
ASAR PLUMBING AND BUILDING
Rating: 5 out of 5
Extension Builder in Canonbury
I am a qualified plumbing heating engineer and General builder, i have learned my trade working for a plumbing / building company for 15 years. i have also been Nescot College for four years where i gained my qualification. I am hard working person, honest, trustworthy and take pride of my job. Customer satisfaction is my top priority.
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Latest review:
Extensions- 17 Mar 2024
Agim and his team were great - communicated what they would do at each stage, the timing, materials needed etc., no major surprises. The building is quite old and wonky in places so they had to work with that and the finished result looks great. Very happy and have would recommend Agim again!
Arliss page Carpentry & Joinery Ltd
Rating: 5 out of 5
Extension Builder in Canonbury
Arliss Page Carpentry and Joinery Ltd is a small friendly and reliable business with more than 10 years’ experience, specialising in all aspects of carpentry and joinery. We pride ourselves in delivering high quality customer focused carpentry and joinery to customers in the east London and surrounding areas. Our team is professional, hard-working and committed to the needs of our customers and exceeding their expectations. We offer a hassle free, and affordable service with high quality workman ship and a friendly service from start to completion. The team is highly skilled and experienced in carpentry and joinery and there is no job too demanding! We are confident that we can meet all your requirements on your next project
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Heat input plumbers
Rating: 5 out of 5
Extension Builder in Canonbury
30 years experience in plumbing and heating and boiler repair, maintenance and installation Domestics and commercial Also design and installation of the every aspect of bathroom,Kitchen.and all related to plumbing needs.
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Latest review:
Mansour is one of the best Contractor i have worked with,he is very accurate and helpful, knowledgeable, and most importantly professional, he recently completed our one of properties, he carried out, our central heating and new boiler installed, he renovated our less able bathrooms ,and finally kitchen upgrades in very precise, everyone in our firm love it, We highly recommend Mansour from heat input plumbers. Many thanks Mansour
Constructum Code Ltd
Rating: 4.2 out of 5
Extension Builder in Canonbury
****** Constructum Code building company ****** Constructum Code is a London construction company specialising in high-quality house extensions, loft conversions and commercial builds for private and business clients. As main contractors, we work with architects and interior designers to deliver projects through to final handover. Our focus is on build quality, precise execution and attention to detail. WE OFFER: *10 Year Guarantee* *Free Estimates* *Full Building Control Approved Installer* *Fully insured building service* Services Provided: Basement Conversion, Custom Build Homes, Home Renovation, House Extensions, Loft Conversion, Loft Restoration, New Home Build, Project Management, Concrete Construction, Concrete Repair
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Latest review:
I ordered repairs from the Constructum Code company, I wanted to create a play area. The guys tried to select all the materials and work technologies to suit my budget. The tiles on the walls and floor were laid well. The work was completed efficiently and on time. I recommend this company...
BLUELIME CONVERSIONS LTD
Rating: 4.7 out of 5
Extension Builder in Canonbury
Bluelime is an established planning, design and construction company providing professional property services across London and the surrounding areas. Established in 2007, we have nearly two decades of experience helping homeowners successfully extend, renovate and transform their properties. Our services include architectural design, planning applications, interior design, structural engineering, building regulations, project management and construction. Whether you require assistance with one individual stage or a complete design-and-build service, we provide honest advice, creative solutions and a clear, professionally managed approach from the initial consultation through to completion. We have a strong track record of planning approvals and successfully completed projects. We have also been active on MyBuilder since 2012 and hold a 4.7 out of 5 customer rating, reflecting our long-standing commitment to quality, reliability and customer service. We offer a free initial consultation to discuss your property, understand your requirements and advise on the best way to move your project forward.
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Latest review:
Extensions- 8 Oct 2018
Alton and his team at Bluelime have been incredibly helpful and enthusiastic throughout our design and planning process. From the start, Alton took his time to understand our needs and propose several cost-effective ways to improve my home and create more space for my growing family. The design process was completed efficiently and submitted for planning permission, which was granted without a problem. Since then, his team have continued to be helpful and communicative despite my need to delay to the building works due to unfortunate complications with my freeholder.
TPR Builders
Rating: 5 out of 5
Extension Builder in Canonbury
I have over 22 years of experience in the building trade in London, working on projects ranging from general repairs and maintenance to full refurbishments, extensions and loft conversions. My work includes carpentry and joinery, roofing, brickwork, flooring, kitchens, bathrooms and general building work. I take pride in doing the job properly, keeping the site tidy and maintaining good communication with my clients. I am now looking to take on more work locally in Kentish Town and surrounding areas.
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Latest review:
Kitchen Fitting- 29 Nov 2025
Pawel did a great job replacing a roof light and repairing two walls on our home office - an efficient, reliable and knowledgeable contractor.
Fussion Contracts
Rating: 5 out of 5
Extension Builder in Canonbury
Hello, I’m a carpenter with 6 years experience who specialises in small odd jobs and refurbishments . Have a small crew and subcontractors availible on requests or if needed for the job. Fully insured and with trackable references.
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Latest review:
Carpentry- 7 May 2018
Good guys, committed to making sure the job is done right and to high standard. Many thanks
City Building and Roofing Ltd
Rating: 4.9 out of 5
Extension Builder in Canonbury
City Building and Roofing Ltd provides professional roofing, refurbishment and building services across London and Surrey. Our services include roof repairs, new roofs, flat roofing, GRP roofing, roof refurbishment, guttering, fascias and soffits, chimney work, damp proofing, brickwork and full property refurbishment. We work with homeowners, landlords and commercial clients, delivering reliable workmanship, honest advice and free no obligation quotes.
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Latest review:
Damp Proofing- 26 Mar 2022
Good,timely and clean workers. Worked hard and efficiently with clear explanations. Very satisfied with the finish.
Zenstruction
Rating: 5 out of 5
Extension Builder in Canonbury
Established in 2005, we are a trusted building company with extensive experience in all aspects of construction, from new builds to fascia and gutter installations. Known for delivering high-quality projects on time and within budget, we maintain the highest standards of workmanship, safety, and reliability. Our expertise spans a wide range of services, ensuring that each project is completed to exceptional standards, meeting both client expectations and industry regulations.
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Latest review:
Extensions- 3 Sep 2018
Zen has helped transform our home, we’ve drawn a lot of confidence from his considered approach and thorough work ethic. He’s so far addressed the cause of cracks to exterior walls of our property and has provided lasting solutions. We also asked him to plaster our hallway and update the banisters for us, Zen has done a great job of reinforcing the strength of the original features whilst retaining the property’s character. Very good with pets too. Looking forward to the next project.
Nami Construction Ltd
Rating: 5 out of 5
Extension Builder in Canonbury
We offer comprehensive property refurbishment services that include decorating, plumbing, electrical work, plastering, extensions, and loft conversions. Our team comprises professionals, and we ensure that all instructions are regularly reviewed with our clients throughout the duration of the project. We provide transparent and detailed estimates and updates on a regular basis to help you control your budget. Our services cater to all types of homes, such as those owned by landlords, Thank you
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Latest review:
Plumbing- 19 May 2026
Emir did a good job. The company did a bathroom refurbishment after water leak, repaired the damaged ceiling downstairs and painted the room. Emir’s attention to detail is very good and he went the extra mile to do the job properly. I will recommend his services.
Yida Design and Construction Ltd
Rating: 5 out of 5
Extension Builder in Canonbury
Yida Construction is a limited company based in Central London. We are a very reliable and professional team of tradesmen with over 10 years of experience in the building industry, committed to delivering the highest levels of quality and service to our clients.
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Latest review:
Restoration & Refurbishment- 26 Jun 2022
Tommy was a wonderful perfectionist and has done beautiful work in our stairway and hallway which had needed refurbishment for a very long time. It feels brand new. The flooring is perfect both in the hall and staircase, and the walls are now perfectly smooth and painted immaculately. Friendly and accommodating, we will be hiring again for more jobs in the future, undoubtedly. Thank you.
PACHO CREATE LTD
Rating: 5 out of 5
Extension Builder in Canonbury
Pacho Create specializes in high-quality loft conversions, home extensions, and full refurbishments—transforming homes into beautiful, functional spaces. With a focus on craftsmanship, planning, and client satisfaction, we bring your vision to life on time and on budget. Let me know if you want a more premium, modern, or friendly tone.
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Latest review:
Tiling- 24 May 2026
I cannot recommend John from Pacho Create Ltd highly enough. I'm a very particular client with high standards, I was impressed by his care, patience, and professionalism throughout. He clearly takes pride in delivering quality work and paid close attention to every detail. Living in a small flat, I was concerned about dust, but John proactively created a solution to minimise disruption, which I really appreciated. He also gave excellent advice on budget-friendly waterproofing products. We had a challenge with large-format tiles, but John worked closely with me to plan the layout, ensuring a natural, balanced finish. The workmanship is outstanding – minimal wastage, precise alignment, and superb attention to detail. I wouldn’t hesitate to use John again, in fact, I’m already planning to have him back to tile around my bath in the near future. I highly recommend him to anyone looking for a skilled, reliable professional.
Design&Build Studio
Rating: 5 out of 5
Extension Builder in Canonbury
Welcome to Design and Build Studio! At Design&Build Studio, we are a proud family business dedicated to providing exceptional design-build services to our clients. With years of experience in the industry, we have built a reputation for excellence and professionalism. Our mission is to create beautiful and functional spaces that reflect our clients' unique style and needs. Our Services -Consultation & Planning: We'll start with a detailed consultation to understand your vision, preferences, and requirements. -Full house renovation: New kitchen installation New carpentry works such as: wood flooring, doors, stair case etc. New bathrooms or existing bathroom renovation Plastering and skimming walls -Roofing: Roof renewal -Other general building works: Garage extension Gardens and pavings Front garden walls Porches Conservatories Reinstate existing walls
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Latest review:
Plumbing- 14 Oct 2026
Efficient, professional job, well priced.
T Dardeshi
Rating: 4.7 out of 5
Extension Builder in Canonbury
I am a builder with the experience for 20 years. Qualified carpenter in UK and hold a level 3 diploma. NVQ level 2 Carpentry and Joinery.I also have a SMSTS certificate, first aider, Pasma and working with asbestos certificates. I have a humongous experience and knowledge in most of the fields on building works. I mostly work in central London in project of different budgets from £100K to over 2 million pounds. However I also do small projects as well as those are more interesting because you meet more client with all sort of ideas and designs. I have a team of qualified builders , plumbers, electricians,carpenter,handyman etc I do jobs from structure, demolition, carpentry, plumbing, plastering, paintings and all sort of renovation including roof work. I always work to archive the highest quality work that will satisfy my clients and also my self. Being trustworthy and loyal is the main characteristic of my self and my team as this helps me to gain good clients and lots of work.
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Latest review:
Hard Flooring- 4 Dec 2022
Professional, dependable and trustworthy contractor and a person. Completed the work to spec provided and delivered the same within agreeable framework and quality.
GGS Brickwork
Rating: 5 out of 5
Extension Builder in Canonbury
I have always been a very conscientious worker and enjoy what i do.
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Latest review:
Bricklaying- 17 Aug 2018
Lovely guy-good job, always kept me informed about when he was ģoing to appear, tidy and interesting to talk to!

4.5

Top rated Extension Builders

Our Extension Builders in Canonbury, are rated 4.5 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 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.