Extension Builders in Hornsey

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

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Some of our top rated extension builders in Hornsey

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Full Circle Renovation Ltd.
Rating: 4.9 out of 5
Extension Builder in Hornsey
Comprehensive project management in London. We specialize in complete refurbishment projects. In the last 15 years our team has been involved in a number of property renovation jobs, having accumulated extensive knowledge of the trade and valuable contacts with specialist craftsmen, suppliers and other professionals. We can help with the whole process from planning to delivery of final finishes. Call us today for a free no-obligation initial consultation, followed by a detailed cost estimate.
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Latest review:
The refurbishment of my small one-bedroom flat took approximately 2.5 months. I compared several builders before starting the project. The price was not the cheapest and the proposed timeline was not the shortest. Though Radilina seemed to be a good project manager and liked that she works on a fixed price for each work.
I.V.M BUILDERS
Rating: 5 out of 5
Extension Builder in Hornsey
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!
CJ Carpentry
Rating: 5 out of 5
Extension Builder in Hornsey
We are joiners by trade, passionate on what we do over the years. We have combined over 32 years of experience on carpentry/joinery itself. As there is always demand, we started delivering any type of construction work, full house refurbishment, kitchens, bathrooms etc. Always preserving our high quality of work, honesty, professionalism. Fully committed to anything we can come across, always find clients, architects solutions so we can achieve everyone’s dream, expectations.
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Latest review:
Carpentry- 18 May 2022
Very professional and friendly tradesman. Work was carried out perfectly and I couldn't recommend him high enough. Brilliant work ethic and he went the extra mile to carry out the works impeccably. Privellage to work with him.
AXM Construction (London) Ltd
Rating: 5 out of 5
Extension Builder in Hornsey
Hello We are a team which we’re happy to help make your work easy and nicely done. Our first priority is the Client. We try our best to get the job done in the right way, and soon as possible.
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Latest review:
Carpentry- 18 Dec 2024
Excellent work. Finished the job on time. Tidy and neat finishing and reasonably priced.
"Surudo" Building & Decorating
Rating: 5 out of 5
Extension Builder in Hornsey
We are team of experienced builders provides professional execution of small, medium and larger projects, all types of refurbishment, maintenance and building services for private and business customers in London and surrounding areas. All of our work is carried to the highest standards.
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Latest review:
Bathroom Fitting- 3 Sep 2020
He is very professional and has done a good job on refurbishing my bathroom.
Isac Mihai
Rating: 5 out of 5
Extension Builder in Hornsey
Responsible person, on time and attention to detail. Over 20 years of experience in all domains.
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Latest review:
Bathroom Fitting- 28 May 2025
I am extremely happy with the job Isac has done. We are so very lucky to have found Isac to do our home. At the time of the works we were expecting a baby and Isac worked night and day to make sure our home was ready in time for our sons arrival. Without him we would have been screwed. Isac’s work is extremely professional. He has high standards and is very skilled. He’s honest, direct and respectful. I now consider Isac as a friend. He’s come back a few times since the works to check in and is always on the phone is you have any follow up queries. I would recommend Isac to anyone who has work they needed done. Thank you Isac!!!
T C Construction Ltd
Rating: 5 out of 5
Extension Builder in Hornsey
TC CONSTRUCTION is a company build on a new generation of builder's with new ideas and construction systems to provide a hight quality job's for the customers.
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Latest review:
Kitchen Fitting- 22 Mar 2022
Tudor did a great job on our kitchen. He kept us informed on progress all the way through the job allowing time in the morning for questions and then getting on with the work during the day. At the end of each day he showed us and spoke with us about the excellent progress he had made. Very pleased with our lovely new kitchen which is clean, bright and spacious.
SDS CARPENTRY & BUILDING SERVICES LTD
Rating: 5 out of 5
Extension Builder in Hornsey
SDS CARPENTRY & BUILDING SERVICES LTD is a team of qualified builders with over 15 years of experience and have all the skills necessary to take on board any building project at an extremely high standard. Yes, we’ll add real value, save you time and effort, keep disruption to a minimum and manage the project from design to final-fit. Our clients choose us because we have exceptional customer service and can deliver projects on time and within budget.
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Latest review:
Carpentry- 9 May 2020
I had a parquet floor laid and was very pleased with the result and attention to detail. Sergiu worked very hard and was a pleasure to deal with.
Plastering and K rendering
Rating: 5 out of 5
Extension Builder in Hornsey
I'm king's prestige-Plastering Services and I've been plastering for 14years specialising in all areas. I'm clean, tidy and reliable and I'll work closely with you from the start of a project to the finish no matter how big or small the job. xxxxxx also I am a fully registered BRITISH GYPSUM plasterer with all domestic jobs, Full Refurbishment.... (I am new in Mybuilder Advertaising program but i have experience from 2006 in This Job,have look in the picture and my Wepsite in My Profile.)
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Latest review:
Plastering- 16 Mar 2020
Almed and his team came over to see the two bungalows and gave me a quote and was more reasonable than other quotes I had previously. Almed started the job and stated exactly what he was going to do from the beginning to the end of the job. He is a very professional and knowledgeable person and he and his team did a outstanding plastering job on my two bungalows and I’m very happy with the job and will highly recommend him for future projects. Thanks Zai
KUBEL LTD
Rating: 5 out of 5
Extension Builder in Hornsey
Welcome to KUBEL LTD, your trusted partner for all your construction and renovation needs. We specialise in building and renovating extensions, roofs, and gardens to transform your home into your dream space. With our expertise and dedication to quality, you can trust that your project will be completed on time and to your satisfaction.
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Latest review:
Wonderful and honest. Excellent finish.
Buildstead Development Ltd
Rating: 5 out of 5
Extension Builder in Hornsey
Our team at Buildstead has over 25 years of experience in the construction industry covering a wide range of project types. We truly are your "one-stop shop" when it comes to your project. From design to build, we pride ourselves on our integrity, the quality of our work and the working relationship we enjoy with our clients. With full project management included, you will be kept up to date at each step along the way ensuring complete peace of mind.
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Latest review:
Kitchen Fitting- 5 Nov 2020
An incredibly positive experience from start to finish. I found Robbie and team were hard workers, very likeable and provided brilliant results. Comms throughout were excellent. With Robbie happy to discuss the job over the phone beforehand and put our minds at ease. A big shout out to the team for undertaking this work during COVID. We understand the pressures this places on our tradespeople and we thank Robbie and his team for their diligence and commitment to wearing masks in our home and working safely. A brilliant experience.
Planix Ltd
Rating: 5 out of 5
Extension Builder in Hornsey
Planix limited carry out all aspects of constructor but specialised in loft conversion, extensions, garage conversions and property refurbishment including kitchen and bathroom fitting.
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Latest review:
Conversions - General- 21 Oct 2021
Job done well and good solutions provided when problems were encountered
Greg Building Services
Rating: 5 out of 5
Extension Builder in Hornsey
I’m professional multi tasking builder with 21 years of experience in renovation and maintenance of residential properties in London
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Latest review:
Handyman- 8 Aug 2023
Excellent work repairing loose bathroom tiles, floorboards and crack in wall. Highly recommended.
Hys Contractors
Rating: 5 out of 5
Extension Builder in Hornsey
We are a very experienced company with over 25 years in the building industry. We undertake all building works from refurbishment, extensions, painting and decorating, tiling, plastering, electrics and plumbing. We operate all around London.
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Latest review:
Restoration & Refurbishment- 14 Mar 2022
Albert and his colleague were both very friendly, they completed the work within the time scale they said they would and to a high standard. I am very pleased with their work and will be using them again!
Danny construction
Rating: 5 out of 5
Extension Builder in Hornsey
I have over 20years of experience in window fitting , during which I've gained experience and always worked on mastering my skills in installation, repair and customer satisfaction. I enjoy doing this job both independently and as part of a team( have worked for different companies before). I'm committed to meeting deadlines and delivering quality workmanship on every project and exceeding customer expectations.
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Latest review:
Windows & Doors (uPVC & Metal)- 9 Feb 2025
Excellent work, very professional, good price. I would use him again. Great communication and I was very pleased he was available the next day.
Pawel
Rating: 5 out of 5
Extension Builder in Hornsey
I am part of a dedicated two-man company with over 15 years of experience in the construction industry. We specialize in a wide range of construction projects, from extensions and loft conversions to garden transformations, as showcased in the photos below. When you choose me, you’re not just hiring a builder—you’re investing in exceptional craftsmanship, meticulous attention to detail, and a commitment to exceeding your expectations. I take great pride in my work, and my recent projects speak for themselves. I’d be delighted to share examples and even arrange visits to completed sites, where you can see the quality of my work firsthand and hear directly from satisfied clients. Your satisfaction is my priority, and I am committed to bringing your vision to life with professionalism and care. I look forward to discussing how I can help make your project a reality. Best regards,Paweł
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Latest review:
The job was to remove a stud wall with an archway between my kitchen and hall. Pawel was excellent from start to finish. He was good to communicate with before, and answered my questions fully. He turned up on time, was very neat and kept the noise down. He did a great job and cleaned up afterwards. I’d recommend!

Top rated Extension Builders

Our Extension Builders in Hornsey, are rated 4 out of 5 based on 17 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.