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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NKN HOME CREATIONS LIMITED
Rating: 5 out of 5
Extension Builder in Hornsey
We are a reliable and experienced construction company committed to delivering high-quality workmanship with care and attention to detail. We specialize in home extensions, refurbishments, new builds, and loft conversions, ensuring every project is completed safely, professionally, and to the highest standards.
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Latest review:
Plastering- 2 Feb 2026
Happy with work, left job site tidy and clean. Will be happy to use company for future work. Thanks
Bardy construction ltd
No reviews yet
Extension Builder in Hornsey
IBardy Construction Ltd, a skilled team of building and home improvement specialists with over 10 years of experience in the trade. We handle all types of home renovations, including loft and basement conversions, room extensions and kitchen and bathroom remodelling. Our goal is to provide a high-quality, affordable service that exceeds our clients’ expectations every time.
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FDT Construction Services Limited
No reviews yet
Extension Builder in Hornsey
Construction company specialising in home extensions, loft conversions, patios, driveways and other construction services. You name it, we are here to help!
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Dansonsconstruction
New on MyBuilder
Extension Builder in Hornsey
Hello, my name is Daniel, I'm builden construction, specialist in: plaster, painting and decorator, I also work with tiles and foundations, construction in general, you don't have to look for someone else, I'm the builder you need, call me that you don't regret it!
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CASTLE PEAK ROOFING LIMITED
Rating: 5 out of 5
Extension Builder in Hornsey
Welcome to CASTLE PEAK ROOFING LIMITED, your trusted partner for top-quality roofing solutions. Our experienced team delivers expert installations, repairs, and maintenance, ensuring your home or business is protected with the highest standards of craftsmanship and materials. Choose CASTLE PEAK ROOFING LIMITED for reliable, durable roofing you can count on. Expert in GRP FIBRE GLASS ROOF and TORCH FELT BEST WISHES
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Latest review:
Roofing (Flat)- 10 Dec 2024
Very happy with their professionalism and work that was carrierd out was satisfactory
VolodymyrBuild
Rating: 4.7 out of 5
Extension Builder in Hornsey
We are small building company,a group of employee 18 skilled people. All our team are fully qualified. We do fully refurbishment,kitchen and bathroom installation, gas, heating and electrical works,plumbing,tiling,carpentry,flooring.We try to do the high quality jobs for clients to be happy and to use us again. We are over 11 years in building industry. We cover all London area.
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Latest review:
Extensions- 16 Oct 2019
Not trust worthy, does not follow the contract, he pulled out in middle of my work in house three times. Never finished on time. Promised to come back and finish The fence and the toilet never come back despite numerous phone calls. I have leaking toilets in the wall big pigments of dampness on the wall paper on the wall adjacent to toilet. Promise to do the roof tiles then he said I cannot do it. Fitted the kitchen units wrong and did not connect the sink overflow pipe to the macerate ( leaking water under sink. Flooring tiles not even still have prominent corners . Front driveway is cracked as he promised to dig and put concrete but last minute changed his mind and put only cement and new slaps. Water pipe outside house is leaking . The stairs carpet and the wooden stairs not painted rightly and the carpet is not fixed right it is out. I paid him all the money left only 150 pounds but never come back to paint fence, summer house finishing and loft ladder. Brought materials and his workers and brought bills never saw some of it. Taken some materials in his van and never discussed this issue. Work meant 6 weeks and now 8 months and still not finished. Do not hire him he and his workers are not up to standards. Will love one from builder. Com come and see the unfinished and damaged in my house.
Puzzle construction group
No reviews yet
Extension Builder in Hornsey
I’m a dedicated professional with extensive experience in loft conversion, extension, renovation and refurbishments. My passion is creating your dream living space, expanding your home with a stylish extension, renovating and refurbishing existing spaces or transforming unused loft spaces into beautiful and functional areas that meet the needs of my clients. Let’s work together to bring your version of life and create a space you’ll love.
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CanDo Constractions
No reviews yet
Extension Builder in Hornsey
medium building company whit rich experience last 16 years in London and surrounding areas. Mobile and flexible. Have a good specialist whit specific skills and experience. Work hard , fast, clear and never leave a job incomplete.
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Delcio
No reviews yet
Extension Builder in Hornsey
From small handyman jobs to building large extensions and houses refurbishment. specialise in all types of work. Portuguese company, just start a new bussiness…the work is done like it was for me!! I am a father of 5 children and I do everything with the best for everyone in mind. Look forward to hearing from you. Thanks
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Bono Construction
Rating: 4.9 out of 5
Extension Builder in Hornsey
BONO CONSTRUCTION is a family run building and construction company based in south east. 20 years experience in business we pride ourselves in the service we offer. We have our own in house drawing office and structural engineers. BONO construction will guide you through your project from very start to finish. ********We design cafes, shops restaurant from start to finish include extractor systems electrical fire cctv and even logo printed on your plates,cups get in touch for a quote
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Latest review:
Bathroom Fitting- 25 Sep 2018
Mustafa is excellent! He did a fantastic job on our bathroom - so much so, that when we decided on a more extensive construction project, he was our first call. He is communicative, friendly, and hardworking. All his team are sweet guys and they did a great job for a great price. I cannot recommend him enough.
Day Building Services
Rating: 4.7 out of 5
Extension Builder in Hornsey
Day building services provide an excellent service With more than 20 years working in the construction industry. Covering all aspects of building and property maintenance with commitment and professional high quality workmanship from concept to completion. Our aims to meet and exceed expectations to all customers outlining work required at affordable prices.
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Latest review:
Extensions- 5 Jul 2018
Mark and his team did an excellent job on our extension, Bi-fold doors and two velux roof windows. Always on time and hard-working, and on budget. Would recommend as the finish is to a high standard.
RIVIERA PLUMB LONDON
Rating: 3 out of 5
Extension Builder in Hornsey
Riviera plumb offer bathroom refurbishment and reactive plumbing maintenance over south east London, well established since 2018 in England, and since 2008 in Cannes ( France ) we offer a reliable service and we pride the quality of our workmanship as much as our customer service
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Latest review:
Bathroom Fitting- 21 Jun 2022
We are not entirely satisfied with Ludovic's work. Some of the tiles were not cut to the correct messurement which left big gaps in between. Worse still, the grouting was very messy and did not have a smooth finish. We will now have to get another Tiler to redo some of the tiling work. Overall, it was not a professional job and we are not very happy with his workmanship.
ZS Property Maintenance Limited
No reviews yet
Extension Builder in Hornsey
At ZS PROPERTY MAINTENANCE LTD, we take pride in being a Safe Contractor accredited company with extensive experience working with housing associations throughout London. Our team of skilled operatives is fully DBS checked, ensuring a high level of trust and security in all our services. We supply all necessary products and materials to deliver meticulous and efficient results. Our comprehensive range of services includes waste removal, property refurbishment, locksmith services, end-of-tenancy cleaning, painting, kitchen fitting, windows and door installation, and house clearance. Whether you're updating a property, securing a home, or managing a move, we are committed to providing top-quality service tailored to meet your needs.
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Dragos Jugaru
Rating: 5 out of 5
Extension Builder in Hornsey
JD SMART BUILDING SERVICES is a company with 7 years of experience assisting in residential and commercial building projects. Skilled in site preparation, material handling, and operating basic construction tools. Knowledgeable in safety procedures and committed to maintaining a productive and hazard-free work environment.
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Latest review:
Windows & Doors (Wooden)- 17 Jan 2026
Great work. Very professional and very fast. Highly recomended.
FKL
Rating: 5 out of 5
Extension Builder in Hornsey
Hi thanks for taking the time to read my company profile, Form Construction specialise in extensions lofts basements and renovations. We strive to deliver quality workmanship. We pride ourselves on being quality tradesmen, always going the extra mile for our clients. We work with many different suppliers to ensure our clients get good value and good quality materials. If you feel we are suitable for your project please get in touch to discuss your project Many thanks John Campbell
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Latest review:
Kitchen Fitting- 3 Sep 2020
Very reliable, hard working and talented ! His quotation was incredibly reasonable too. Very grateful
The london Loft and Kitchen Company
Rating: 4.5 out of 5
Extension Builder in Hornsey
We are a southwest London Based loft and kitchen extension specialist. Our working area is very small with 90% of our jobs in Wandsworth and any work outside this area is never more than a mile or two away. With over 15 years experience in this area we know inside and out how these properties were built so when it comes to structural alterations you couldn't be in safer hands.
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Latest review:
Extensions- 16 May 2017
Initially apprehensive about using mybuilder, we found David easy going, clear and concise from the offset. The work carried out was to a high standard and any changes or questions that arose he was all to happy to answer. We found him to be pro-active in his approach, open and honest with how much items cost and sensible when agreeing monthly valuations. Both of us work in the construction industry and it is enjoyable and a breath of fresh air when you get to work with people as straight forward a David. We hope to do work with him again and would be happy to talk with anyone who is considering taking him on for additional work. Many thanks, Rob and Brom

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.