Extension Builders in North London

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

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Some of our top rated extension builders in North London

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Saunders Developments Ltd
Rating: 5 out of 5
Extension Builder in North London
Saunders Developments are a Property Development company that specialise in Design & Build, Extension's, Conversions, Gas engineering & Steel Structures. We currently cover London, Surrey, hampshire, West & East Sussex. We have over 16 years of experience within the construction industry, with our grounding in Structural Steel. Our in-house team of expert's consist of CAD operators, Surveyors, Gas Engineers, Plumbers, Electricians, Builders & Carpenter's
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Latest review:
Restoration & Refurbishment- 22 Jan 2020
Saunders Developments were friendly, efficient and left my house clean and tidy, after what was quite a dusty and dirty job. I'm really pleased with the work and would happily recommend them to others!
Farid Dalhoumi
New on MyBuilder
Extension Builder in North London
We offer complete property improvement and maintenance services, covering everything from outside to inside your home or business. Our services include driveways, block paving, patios, fencing, landscaping, drainage, roofing, painting and decorating, flooring, tiling, plastering, kitchen and bathroom fitting, general repairs, and full property maintenance. No job is too big or small — from minor repairs to full renovations, we take pride in delivering reliable workmanship, attention to detail, and high-quality results at competitive prices.
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EB Building and Roofing Services
No reviews yet
Extension Builder in North London
Building company based in Gravesend and founded by Ediz, specialise in bricklaying and Pointing. Please look at my pictures to give you confidence in my work. From brick walls to new builds ELA go above and beyond to make your dream a reality, making our customers our priority.
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CAPITAL SERVICES GROUP LTD
No reviews yet
Extension Builder in North London
We are Construction company based in London & the Home Counties. We have a large portfolio of esteemed clients & are registered with Safer Contractor to assure of quality of work. Contact us today.
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DPS Builders
No reviews yet
Extension Builder in North London
Good and right work starting to finish
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QC Projects Ltd
New on MyBuilder
Extension Builder in North London
At QC Projects , we specialise in high-quality residential and commercial construction across London and the surrounding areas. With over 10 years of industry experience, we pride ourselves on delivering projects professionally, safely, and to the highest standard from start to finish. Our services include extensions, loft conversions, full refurbishments, structural alterations, bespoke joinery, kitchens, bathrooms, roofing, fit-outs, decorating, and complete project management. Whether it’s a modern home renovation, a high-end finish, or a complex structural project, we bring the same attention to detail and commitment to quality on every job. We understand that choosing the right builder is a major decision. That’s why communication, transparency, cleanliness, and reliability are at the centre of how we operate. We work closely with clients, architects, designers, and building control to ensure projects run smoothly and are completed on time and within budget. Our team is fully committed to customer satisfaction and building long-term relationships through trust, workmanship, and professionalism. No shortcuts, no hidden surprises — just quality construction delivered properly. "Visit our website for more of our work"
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S j Webb & co limited
Rating: 5 out of 5
Extension Builder in North London
S J Webb & Co Ltd has been operating since 1977 and is a family run third generation builder. We are NHBC registered and have a combined experience of over 100+ years in the Building Industry. We have built large flat developments in Braintree & Walton-the-Naze ,we built 70 Houses for the MOD & houses in Chelmsford ,Leigh-on-Sea,South Benfleet ,Canvey Island & Greater London.We also vet and review our sub- contractors to ensure our high standards are met and delivered to our Clients
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Latest review:
Decking- 8 Aug 2019
Fast, efficient, problem solving Steve. Would definitely recommend.
Giger Developments
No reviews yet
Extension Builder in North London
Giger Development is a reliable and professional bricklaying company specialising in high-quality brickwork, blockwork, and general building services. We take pride in delivering strong, precise, and long-lasting results across both residential and commercial projects. From garden walls and extensions to structural brickwork and repairs, we combine skilled craftsmanship with a strong work ethic to ensure every job is completed to the highest standard. We focus on attention to detail, clear communication, and fair pricing, giving our clients confidence from start to finish. At Giger Development, we understand the importance of doing the job right the first time — building work that not only looks great but stands the test of time.
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JDS Brickwork
Rating: 5 out of 5
Extension Builder in North London
I've been a bricklayer for 30 years I do all kinds of brickwork from garden walls to extensions and new house builds.patios ,driveways ,drainage and groundworks
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Latest review:
Bricklaying- 11 Nov 2017
Did a fantastic Job. Gave me a very reasonable quote. Ordered the materials and was very neat while doing the job. Cleaned up afterwards. The wall was built beautifully and exactly how I wanted it. The job was done within the specified time. I recommend Jon very highly.
J Green Construction Ltd
Rating: 5 out of 5
Extension Builder in North London
I have been in the Construction industry for 15 years working for local but reliable companies. I have now established J green construction , I’m driven to succeed and provide client satisfaction in all aspects of plumbing , Refurbishments and restorations covering areas London Kent and Essex.
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Latest review:
Bathroom Fitting- 17 Feb 2025
From start to finish the team was superb. Josh was helpful in suggesting ideas to make the most of the job. Bradley, Ray and Dave were all expert in their work and the job progressed quickly. Josh was excellent in communicating with us to advise who would be arriving the next day. As older clients we appreciated workers with whom we felt comfortable. The whole process gave us an ensuite to be proud of. Expert workmanship and a very pleasing finish. Would not hesitate to employ this contractor again.
SCME Builders Ltd
Rating: 5 out of 5
Extension Builder in North London
SCME Builders Ltd are a family run business for over 35 years.We are happy to give a free no obligation estimate on all types of building work. A NHBC registered company we can provide testimonials and references on all works large or small
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Latest review:
Extensions- 29 Aug 2020
Marvellous. Will always recommend Gary owner SCME Builders Ltd.
Gest Interiors Ltd
No reviews yet
Extension Builder in North London
I have more than 10 years of experience in construction , decorating, drylining, kitchen fitters, carpentry, etc. I am willing to do quick quotes and reasonable prices. Company number 15164074
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chris
No reviews yet
Extension Builder in North London
Electrical installation, Landlord certificate, EICR, Condition report , Fault finding etc
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J.M.C Electrical & Build Ltd
No reviews yet
Extension Builder in North London
JMC Electrical & Build was established in 2018 and has been working on projects in Greater London and surrounding areas ever since. we have a small team of professional who have carried out several domestic and commercial projects. we are mostly recommended by word of mouth due to our expertise service. we offer one stop solution for your needs.
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HD BUILDING CONSTRUCTION LTD
No reviews yet
Extension Builder in North London
Hi we do all sort of building work, we do extensions loft conversion bathroom, kitchen, plumbing , electrical, Carpanter , roofing, decorating, landscape,refurbishment works .all building work undertaken. 17 years experience in building work. We provide best quality service in quick time. Quick reply and quick service. We do cover London are and surrounding areas near by.
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Access Building and Construction Ltd
No reviews yet
Extension Builder in North London
Hi Access Building and Construction are a family owned and run building and construction that specialise in all general building works to include Garage Conversions, Extensions, ramping, internal refurbishments and bathrooms. With over 30 years experience in the building industry and a 5 star rating (through our sister company) we can offer a full design, supply and installation service. We have our own tradespersons to make sure all aspects of our projects are completed in full. We have our own in house project manager to make sure your project runs on time, on schedule and in budget. Building applications, structural reports and Part L calculations are all carried out in house to help keep your cost down. We offer a full 10 year warranty for all building works and 5 years warranty for bathrooms, along with a 5 million pound public liability insurance. As members of the BHTA we could offer zero rated VAT if any work is carried out for mobility, easy access or ground floor living. We also have a legal contract approved by the trading standards code of practice, all for your piece of mind. Kind regards Lee Brand CEO
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Top rated Extension Builders

Our Extension Builders in North London, are rated 4 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 North London?

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 North London 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 North London who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in North London?

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

Find extension builders in North London with MyBuilder

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

Step 2: Compare different extension builders in North London

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

Step 3: Hire North London extension builders with confidence

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

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

What to ask a North London extension builder before hiring?

Before hiring an extension builder in North London or extension building company in North London, 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 North London?

An extension builder in North London 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 North London 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 North London?

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 North London 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 North London 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 North London

Can an extension builder in North London help with planning permission?

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

Many North London 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 North London help with materials and finishes?

Yes, most extension builders in North London 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.