Extension builders in Hornsey

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.4 (14 reviews)

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Some of our top rated extension builders in Hornsey

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Aulon Thaqi
No reviews yet
Extension Builder in Hornsey
Hello! My name is Aulon Thaqi and I’m an experienced extension builder based in London. Whether you're looking to add more space to your home with a new extension, renovate an existing space, or create a more functional layout, I’m here to help bring your vision to life. With years of experience in the construction industry, I specialize in designing and building high-quality, tailored extensions that fit your needs and budget. I pride myself on delivering projects on time, within budget, and with attention to every detail. From the initial planning stages to the final touches, I ensure that all work complies with local building regulations and is carried out to the highest standards. I offer a personal, hands-on approach to every project, providing clear communication and regular updates so you can be confident in the progress of your extension. If you're looking for a reliable, skilled extension builder in London, feel free to get in touch, and let’s discuss how we can make your dream extension a reality
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A S Builders
Rating: 5 out of 5
Extension Builder in Hornsey
We are a family run business in construction industry since 1990, initially started by my father and now his sons have joined the business and looking to revitalised the business through the use of up-to-date technology. We undertake all types of building work through our team of skilled labour from a small job up to New Build. Our most recent job was conversion of a detached property to 7 HMO's.
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Latest review:
Extensions- 29 Apr 2026
Heera, Jagthar and team was my first personal experience with builders. Let me tell you, it was a pleasure to have them do our porch and other renovations in the house. They are so courteous, hard working and provided a great service. Firstly, I had a comprehensively written quote breaking down all of the steps required. Heera then ensured to keep me in the loop of any developments/any changes of plan required, outlining the reasons why and options, making it easy to understand and work together to completion. Their finish was to a high quality and they would always go the extra step to ensure this. I highly recommend AS Builders for any job and will definitely use them again in the future, and would recommend to my friends and family also. If you are considering them, grab a free quote and go from there... That's what I did! Thank you AS Builders for our renovations!
Petru
No reviews yet
Extension Builder in Hornsey
We are a professional construction company specializing in bricklaying, paving, and house extensions. With a strong focus on quality and reliability, we deliver durable and aesthetically pleasing results for both residential and commercial projects. Our experienced team ensures every job is completed to the highest standards, on time and within budget.
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B&V HOME IMPROVEMENTS LTD
No reviews yet
Extension Builder in Hornsey
Home Improvements Company undertaking; Extensions, Loft Conversions, Refurbishments, Bathrooms, Kitchens as well as plumbing, electrical works and etc....
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DOREZ LTD
No reviews yet
Extension Builder in Hornsey
Dorez Ltd is a company that specialises in refurbishment and new build projects. We have a team of directly employed professional staff who deliver a cost-effective, timely, and high-quality construction solution. Our core team of tradesmen delivers consistent quality and has the ability to be flexible and reactive to requirements. Dorez Ltd was created in 2013 by Ermal Brazhda the owner and the person responsible for delivering every project from beginning to the end . We cover all the London areas We work outside London that’s depends on the projects . Get in touch today for better quality !
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Ari builders ltd
No reviews yet
Extension Builder in Hornsey
I have 21 years experience in construction and mainly in loft conversions and extensions. I also do new roofs and block paving. We also do undertake a full house refurbishment.
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Edisoni
No reviews yet
Extension Builder in Hornsey
Well trained and experienced workers 7 years experience in construction in different sections who always trying to get perfection and quality from all our works we done by now
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ARD@AGD.Ltd
No reviews yet
Extension Builder in Hornsey
Hi my name is Costel and my company name is ARD@AGD.Ltd ; We are working ; full refurbishment interiors, bathroom, kitchen fitting, tiling, flooring, painting and decorating, electrical, etc.
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FLR construction ltd
No reviews yet
Extension Builder in Hornsey
FLR CONSTRUCTION LTD
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STONE SA LIMITED
No reviews yet
Extension Builder in Hornsey
Stone Sa Construction can give you the help and essential advice needed to optimize the space and construction of your building project, but also provide a quality of service.
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O G Electrical
Rating: 5 out of 5
Extension Builder in Hornsey
O G electrical is based in Belvedere and Part P registered with Napit and the Electric safety register. All electrical work undertaken, with 25 years knowledge and experience. Re wires , fuseboards , under floor heating , Cctv , lighting , fire alarms , garden and drive lights,commercial fit outs, 3 phase, extract fans all Electrical installs carried out. Installations to new build houses/apartments throughout London and Kent Inspection and testing Eicrs All work guaranteed.
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Latest review:
Electrical- 1 Dec 2020
Olly was cheerful even though confronted with an ancient wiring system and a difficult problem. He came back for a second day and sorted it. There was a callback which he sorted quickly and without complaint
Apex building services Ltd
No reviews yet
Extension Builder in Hornsey
Apex building Services Ltd is a building company. Our work consists of renovation, extensions, loft conversions, Kitchen and bathroom Installations including disability adoptions. All work is carried out by experience trained qualified personnel. Apex also retains certificates from the following bodies: Federation of Master Builders, CHAS, Construction Line. Apex is also VAT registered.
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Avion Homes Limited
Rating: 5 out of 5
Extension Builder in Hornsey
Avion Homes Limited specialises in residential new builds, extensions, refurbishments, and bespoke self-build projects across Essex, West Kent, and surrounding areas. With years of experience managing residential developments for major nationwide housebuilders, we deliver high-quality construction with a strong focus on workmanship, organisation, and reliability from start to finish. Our services include: • Residential New Builds • Property Extensions • House Refurbishments • Self-Build Projects • Construction Management As an FMB member and TrustMark registered company, we are committed to delivering professional, compliant, and well-managed construction projects for homeowners, investors, and developers.
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Alpha Construction
Rating: 5 out of 5
Extension Builder in Hornsey
A local British family run construction company with over 30 years experience in the building trade. We take a structured planned approach to all projects big or small and deliver high quality work at a fair price. Free no obligation quotation service please feel free to book an appointment today.
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Latest review:
Alpha construction did a 2 storey side and roof extension, loft conversion, complete renovation, drive and patio for us. In short they took a dated 3 bedroom house and converted it into a modern 5 bedroom house. We invited over 10 builders to bid and Alpha supplied the most detailed quote and were the only one to meet each deadline. They were also always quick to answer questions. That level of customer service and professionalism was reflected in all latter dealings with them. They started on time, they finished on time. They updated us on a regular basis and found innovative solutions to unexpected issues e.g. inaccurate architectural drawings. They kept to budget and were transparent with costs. My husband particularly appreciated that they recommended value options or found lower cost solutions to our ideas. We also got access to a wealth of subcontractors. Ross put together a high quality team from the expected plumbers, electricians etc. To the unexpected such as window vendors / kitchen suppliers. All of which gave great value and high quality services compared to alternatives we found ourselves. Everyone at the house was polite and conscientious, in fact neighbours have been asking for quotes since. Since moving in we've had a lot of people comment on the great finish of the work they did. The house looks lovely and I would be happy to show others thinking of using them. I have recommended them to my friends and that's about the best compliment I can give.
progressivedesign
No reviews yet
Extension Builder in Hornsey
Progressive Design is a full-service home repair and improvement company.Our team of staff have the expertise necessary to respond to any concern you may have about your home.
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4 brothers brickwork
No reviews yet
Extension Builder in Hornsey
We are a professional bricklaying company determined to offering our clients the utmost quality at competitive rates. Our projects include both new construction and repairs/restorations. From a wall to a new build project. No job is too small.
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4.4

Top rated Extension Builders

Our Extension Builders in Hornsey, are rated 4.4 out of 5 based on 14 reviews from customers like you.

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

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

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

What are the hourly rates of extension builders in Hornsey?

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

Find extension builders in Hornsey with MyBuilder

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

Step 2: Compare different extension builders in Hornsey

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

Step 3: Hire Hornsey extension builders with confidence

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

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

What to ask a Hornsey extension builder before hiring?

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

An extension builder in Hornsey 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 Hornsey 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 Hornsey?

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 Hornsey 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 Hornsey 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 Hornsey

Can an extension builder in Hornsey help with planning permission?

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

Many Hornsey 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 Hornsey help with materials and finishes?

Yes, most extension builders in Hornsey 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.