Extension Builders in Hornsey

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.9 (16 reviews)

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Some of our top rated extension builders in Hornsey

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TEAMBEST DEVELOPMENTS LIMITED
No reviews yet
Extension Builder in Hornsey
We are a family run building company with many years of experience. We have been doing extensions, loft conversions, full refurbishments, etc for over 40 years. We work closely with a team of Architects and can assist you with the design and planning of your project through to completion. We want to ensure you get the best job done, our team of builders are reliable and come with vast knowledge of the building Industry.
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Ava Constructions & Decors
Rating: 4.9 out of 5
Extension Builder in Hornsey
Ava Constructions & Decors Ltd is a UK-based construction and renovation company committed to delivering top-quality craftsmanship and reliable project management. We specialise in full refurbishments, extensions, bathroom and kitchen installations, and commercial fit-outs — always tailored to the client’s vision and delivered to the highest UK building standards. With a keen focus on transparency, timelines, and customer satisfaction, Ava Constructions has earned the trust of homeowners, investors, and developers alike. Punctuality and completion of work on time are a priority .Our team always respect the client wishes and work with them to achieve the best possible results to their satisfaction. Thank you in advance
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Latest review:
Extensions- 16 Apr 2026
I would not recommend this builder based on my experience. Instead of using crushed concrete they used soil to fill the house flooring for underfloor heating. 1 The project suffered from poor communication, repeated delays, and a lack of clarity around responsibilities. There were serious issues with the foundation works, which failed Building Control inspection and now require remedial engineering input before works can proceed. The site was also left incomplete and not in an acceptable condition. Despite substantial payments being made, key documentation, technical responses, and follow-through were lacking, leaving me to resolve major compliance and structural issues independently. My experience has resulted in delay, additional cost, and considerable stress. I would strongly advise others to ensure there is a detailed written contract, clear scope of works, and defined accountability
LD Building Services Ltd
Rating: 5 out of 5
Extension Builder in Hornsey
We are a design and build company based in Isleworth. We are an experienced and disciplined team who have worked on many projects throughout London and surrounding areas for many years. Our company provide professional services to all aspects of building works which includes Loft Conversions, Extensions, Refurbishments & Home Improvements . Federation of Master Builders Trust Mark member
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Latest review:
Extensions- 20 Aug 2016
Fantastic service, Lucas and Darota are an amazing professional team always reliable and our kitchen extension is to an exceptional standard. Darota offers an amazing interior design service. The builders have been punctual, worked really hard and when we have come home from work the house is always tidy so we don't even feel the house is being renovated. We offered LD Property services more work after our kitchen extension/complete refurbishment to include a complete renovation of all our home including garden and driveway. The project has been managed brilliantly as we work full time this has been really helpful.
Adam Daniel LTD
No reviews yet
Extension Builder in Hornsey
Cliden Construction LDN is a small, London-based construction company specialising in high-end domestic refurbishments. With a passion for quality and attention to detail, we work closely with discerning clients across London to transform their homes into exceptional living spaces. Whether it’s a complete structural refurbishment, a luxury kitchen or bathroom renovation, or a full interior overhaul, we pride ourselves on delivering outstanding results that exceed expectations. As a boutique construction firm, we offer a highly personalised service. You will deal directly with experienced professionals who care about every aspect of your project — from the initial design consultation through to the final finishing touches. We only use premium materials and trusted specialist tradesmen to ensure a flawless finish every time. At Cliden Construction LDN, we understand that your home is one of your most important investments. That’s why we are committed to the highest standards of craftsmanship, reliability, and client satisfaction on every project we undertake. We look forward to the opportunity to bring your vision to life.
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House Renovation Services London LTD
No reviews yet
Extension Builder in Hornsey
I am a London based cont actor with over 10 years experience in property renovation and construction. I specialise in delivering high quality building work, from full refurbishments to extensions and new builds. I pride myself on reliable service, clear communication, and excellent workmanship.
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OGC LANDSCAPING LTD
Rating: 5 out of 5
Extension Builder in Hornsey
Welcome to OGC Landscaping, I'm based in South East London/ Kent and have experience in landscaping and general handyman work, I pride myself on my work and always strive to deliver the best customer service, I treat your home as if it was my own and I am honest, friendly and very reliable, please take the time to have a look at my work and the finished job can really transform your home or garden. I provide free estimates and helpful friendly advice. Here are some of the services I offer and look forward to hearing from you. Services Indoor/Outdoor Landscaping and groundworks Turfing Brickwork Shed bases Decking Hard landscaping Garden design Summer house design & construction Garden sheds Sleepers Flower beds Tree planting Soft landscaping I'm happy to offer a flexible service at a time that suits you, please don't hesitate to get in touch. If for any reason you are unable to contact me send me a text and ill get back to you as soon as possible. Many thanks Oliver
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Latest review:
Landscaping- 5 Oct 2025
Amazing work and communication
MCAF Consulting Ltd
No reviews yet
Extension Builder in Hornsey
We are trusted builders in London and Berkshire with over 15 years of experience delivering exceptional results on both residential and commercial projects. Our team specialises in house extensions, loft conversions, and full property refurbishments, combining skilled craftsmanship with clear communication and professional project management. From small domestic renovations to large mansion houses, we take pride in providing a reliable, high-quality service that meets deadlines and exceeds expectations. Every project is handled with attention to detail, transparency, and respect for your home. If you’re looking for experienced, fully insured builders to transform your property, MCAF offers complete design-to-completion solutions tailored to your needs. Quality workmanship, honest pricing, and client satisfaction are at the heart of everything we do.
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Cambridge group
No reviews yet
Extension Builder in Hornsey
We are a trusted construction team with over 10 years of professional experience delivering high-quality building services across residential and commercial projects. Our goal is simple: to provide reliable workmanship, clear communication, and results that exceed expectations. Over the past decade, we have successfully completed a wide range of projects, including: • Home extensions & loft conversions • Full property refurbishments & renovations • Kitchen and bathroom installations • Carpentry and joinery work • Plastering, painting, decorating & tiling • Roofing, brickwork & structural modifications • Driveways, patios & landscaping • General maintenance and repairs Our portfolio includes dozens of completed projects, each finished with attention to detail, high-quality materials, and a commitment to customer satisfaction. We take pride in our craftsmanship and treat every job—big or small—with care and professionalism. Why choose us? • 10+ years of hands-on industry experience • Skilled, fully insured, and reliable team • Transparent quotes and regular updates • Clean, safe, and well-organised working practices • Strong portfolio and repeat customers We work closely with every client to understand their needs,
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HAMPSHIRES BUILDING & REFURBISHMENT
Rating: 5 out of 5
Extension Builder in Hornsey
We are a trusted family run company with 18years experience working in full refurbishment and partial re-modelling of properties. We undertake all aspects of high end building work including Extensions, Loft Conversion, Electrics, Plumbing, bespoke Kitchens, Bathroom, Built-in furniture all decoration and flooring. We have worked all over London restoring Georgian, Victorian and Edwardian properties. We have worked with English Heritage, Grovsvenor Estates and many London based Architects.
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Latest review:
Extensions- 11 Jun 2017
Neil and his team were the perfect builders. They did the job, quickly & efficiently. Always on time. Very honest builders. We were so lucky to have picked them. Also a great team to have around. Thankyou Neil.
Duka tarmac
No reviews yet
Extension Builder in Hornsey
I been doing tarmac over 20 years now and I would like to open my on company
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Max
Rating: 5 out of 5
Extension Builder in Hornsey
M&M Acorn LTD provide a wide range of construction services throughout the east London , designed to meet the needs of your project. To find more about what we do and to get a free quotation, don't be afraid to get in touch with our qualified staff right now.
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Latest review:
Painting & Decorating- 28 Sep 2022
External Painting & Repairs and redecorating hall,stairs and landing. Very pleased with the work Max and his team carried out. Commenced the work as agreed, good time keeping, very polite and kept me informed regarding progress. Completed on time. Also very clean and tidy workers taking time to cover all areas with plastic sheets, cleaned windows on completion. I would have no problem recommending Max and his team and would employ them again.
Plastering Rendering Skimming
Rating: 4.7 out of 5
Extension Builder in Hornsey
Hi, my name is Peter and I am an experienced plasterer. Customer satisfaction is very important to me and though new to MyBuilder I'm not to the trade, I've been plastering for over 15 years. I can provide references of satisfied customers on request for peace of mind that your project is in safe hands. I do all types of plastering, rendering, dot & dab also I float & set. No job too big or small, myself and the team are adaptable and can work weekends or evenings to suit your requirements.
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Latest review:
Plastering- 2 Dec 2024
He’s a hard worker, very polite and did the job very quickly over two days. The only problem being that one of the walls came off. He did come back with no arguments and fixed the job.
Parsek Group LTD
Rating: 5 out of 5
Extension Builder in Hornsey
Parsek Group has a proven track record of innovative designs, effective problem solving and attention to detail. Our goal is to meet and exceed the expectations of every customer. We are a local company with experience of a wide range in general property maintenance to A-Z finish in property finish construction & renovations
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Latest review:
Good service
Window diy ltd
Rating: 5 out of 5
Extension Builder in Hornsey
More than 15 years experience in the building trade. Carry out all building work from extensions to loft Conversions and renovations. Can assist in planning applications and structural drawings. Fensa Registered Company - More than 15years experience in the glazing field and construction field. Supply and installation of high quality UK made glazing products. 10 year warranty on all installations. Cover all of West London , Surrey, Bucks, North London.
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Latest review:
Windows & Doors (uPVC & Metal)- 13 Jul 2026
Works were carried out within schedule. Honest and reliable. Communication was good all the way through. Property was left clean and tidy. Would definitely recommend.
Skyline renovating ltd
No reviews yet
Extension Builder in Hornsey
Welcome to Skyline Renovating Ltd. We specialise in renovation, construction, and development. We cover areas London and East Sussex.Our experienced team delivers high-quality projects on time and within budget. Whether updating your home or building new structures to developing properties, we bring your vision to life. Trust us to handle all your construction needs with professionalism and excellence.
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Mev
No reviews yet
Extension Builder in Hornsey
I have been working in a building industry for 20 years and I love what I do as I like to make the clients happy and I make sure that all My clients are satisfied with my work ,I do any type of building work so if you want to get in touch please contact me
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3.9

Top rated Extension Builders

Our Extension Builders in Hornsey, are rated 3.9 out of 5 based on 16 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.