Extension Builders in Winchmore Hill

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

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Some of our top rated extension builders in Winchmore Hill

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Peter
Rating: 5 out of 5
Extension Builder in Winchmore Hill
Hello I’m a professional builder Hard working and quality finishes. Manny years of experience working on most expensive projects in London. Every project no matter what size is important to me.
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Latest review:
Plastering- 10 Aug 2021
Simply Wonderful. I am a very difficult customer to please and Piotr's Attitude, Professionalism and most importantly work was all a 10/10 If you need a plasterer look no further as he is simply amazing
RJS Innovative Building Ltd
Rating: 5 out of 5
Extension Builder in Winchmore Hill
RJS Innovative Building looks for new designs and technologies available to give our clients the best solutions. We are happy to look at any project. We provide extensive knowledge on interior/exterior refurbishment, extensions/loft conversions, bathroom redesigns/installations, kitchen redesign/installations and revitalising property period features. We have connections with kitchen, tile, natural stone manufacturers FOLLOW AND SEE OUR WORK ON INSTAGRAM. @rjsinnovativebuilding
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Latest review:
Restoration & Refurbishment- 9 Sep 2021
The original job for a bathroom renovation turned into a much bigger job. Raphael and his team ended up helping design and renovate the bathroom, bedroom, living room and hallway. The team helped us source all the materials including underfloor heating and an incredibly intricate mosaic tiled floor in the hallway. They provided practical advise about what was best for the space, what would work within our budget and what would be easy to live with. For example, the team installed underfloor heating in the living room using wood effect herringbone ceramic tiles which would help get the maximum efficiency out of the underfloor heating whilst giving us the wooden flooring look we desired. Raphael and the team were excellent throughout delivering high quality work and we were more than happy with the final results. I would highly recommend Raph and his team.
jawad
Rating: 5 out of 5
Extension Builder in Winchmore Hill
Skilled and dependable worker with experience in wood construction and roof installation. I build and install wooden posts, frames, and plastic or timber roofing. I take pride in delivering strong, clean, and professional results. Friendly, punctual, and committed to customer satisfaction.
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Latest review:
Jawad was very professional and hard working. Our corner has said if he could give 6 stars he would! I reccomend him highly!
Phi Architectural Services Ltd.
Rating: 5 out of 5
Extension Builder in Winchmore Hill
Phi Architectural Services Ltd. specializes in providing architectural, structural and project management services from small to big sized residential projects. With more than 12 years of experience and more than 500 projects ranging from refurbishment to new build houses and flats, the firm also have its own team of sub-consultants and contractors.
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Latest review:
CAD / Drawings- 6 Mar 2022
Very helpful architect. Needed a little nudge occasionally due to busy season, but the work is delivered in time and to a high standard. I'm happy with the result.
Ndreu builders
Rating: 5 out of 5
Extension Builder in Winchmore Hill
Hello,I have 23 years working in construction. I am specialised experience within painting and decorating. I also complete domestic and commercial property refurbishments, silicon rendering, driveway and patio installations, plastering and gardening. I mostly take on all kinds of multi trade work. Please don’t hesitate to contact me for any enquiries.
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Latest review:
Handyman- 20 May 2026
He’s friendly and completes the job with care.
Dinos Construction
Rating: 5 out of 5
Extension Builder in Winchmore Hill
We specialize in comprehensive general construction services, embracing all aspects of the construction domain. Our hallmark lies in an unwavering pursuit of perfection and meticulous attention to detail. Committed to translating customer visions into reality, we stand out through exceptional results and a relentless focus on satisfaction. Your construction needs are in reliable hands, with an unparalleled dedication to excellence.
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Latest review:
Plumbing- 28 Aug 2023
The trader responded quickly, did a fantastic job, and I'm definitely keeping them for more work. Highly recommended!
CONSTA Construction Limited
Rating: 4.6 out of 5
Extension Builder in Winchmore Hill
CONSTA Ltd - small construction company based in London, and characterises in flexibility to complete various jobs . There is list of different small or awkward completed jobs in our portfolio as well as more significant projects as loft conversions, extensions, full house reconstructions, new build and Passive House construction as well.
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Latest review:
Extensions- 29 Aug 2021
Communicated well at the start with reasonable cost. work was done well but the finishing was not so great as expected. The end cost was very expensive. Charged by the hour, the team were very slow which was upsetting to see me pay for time where they sat around not doing much. Ensure to agree fixed price. Communication after job is poor, double glazing has warranty which now not being able to communicate with kostas having to pay to get things done that should be covered in warranty. Central heating give huge problems. Do not use for big jobs
Builder Cat LTD
Rating: 5 out of 5
Extension Builder in Winchmore Hill
Serdar has over 20 years of experience as a professional builder. His extensive experience includes Owner/Builder/Developer of his own company, many years Builder Cat Limited was founded by Serdar Aydinlar, who has since 1996 structural engineering and design experience. Serdar oversees the structure of each project, and monitors the careful execution of the design brief to ensure a flawless finish.
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Latest review:
Bathroom Fitting- 12 Jun 2019
Did a very good and efficient job with minimum fuss. I have asked the builder to quote for another job and do not have any hesitation in recommending this builder.
Switch Electric Services Limited
Rating: 4.9 out of 5
Extension Builder in Winchmore Hill
A fully qualified electrician is a highly skilled professional equipped with comprehensive knowledge and expertise in all aspects of electrical work. With rigorous training and practical experience, they excel in designing, installing, and maintaining electrical systems with utmost precision and safety. From residential wiring to industrial installations, fully qualified electricians play a crucial role in powering the modern world, enabling progress, and illuminating our lives.
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Latest review:
Electrical- 9 May 2026
He was good on price for the first inspection and attended as agreed. However, I was less happy with the remedial quote. Several items quoted did not appear to be needed, while some items that did need attention were not included. Overall, fine for the inspection, but I would have preferred a more accurate and practical quote for the follow-up work.
Nicely Done Always
Rating: 5 out of 5
Extension Builder in Winchmore Hill
Our success is a your happiness. We strive on achieving high standard finishing to achieve high level of customer satisfaction. With us you can’t go wrong. From kitchen and bathroom renovation, to landscaping and gardening work we do it all. So lets get in on and make it happen.
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Latest review:
The guys from NDA have really have executed the works i wanted carried out on another level. The tiling in the bathroom is just lovely. The whole bathroom feels so different i still cannot believe it. Well above my expectations if im honest. Thanks guys. i will definitely be in touch on my next project.
William kersey
Rating: 5 out of 5
Extension Builder in Winchmore Hill
Hello there, my name is William I’ve been a builder for many year mainly constructing extensions and loft conversions as well as refurbishing and maintaining
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Latest review:
Wrap around kitchen extension on Victorian terrace. William is extremely hard working, has superb attention to detail on everything he does. He’s wonderfully polite and courteous and it was an absolute pleasure to have him working on and in our home.
Basibel Building Services
Rating: 5 out of 5
Extension Builder in Winchmore Hill
Our business has been established for over 30 years, mostly covering bathroom and kitchen fittings, complete refurbishments, extensions to plumbing and carpentry services. Proud to say that in all these years we have not had a single bad review, bold claim but true! Feel free to get in touch for a no obligation chat, we may be a solution to your problems, look forward to hearing from you! Best, Nesha
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Latest review:
Kitchen Fitting- 29 May 2024
Nesha was brilliant from start to finish. He was excellent at communicating before the job and was entirely professional and hard working throughout, not to mention his quote was very reasonable. He worked really hard to get the job done quickly and he did it to a fantastic standard. We are so pleased with the finished product and he was a pleasure to work with. We cannot recommend Nesha highly enough.
Dino design Ltd
Rating: 4.8 out of 5
Extension Builder in Winchmore Hill
We founded DINO DESIGN out of a pure passion for building. We are two brothers who work together in sync and is a collaboration we're proud off, we construct roofs extensions and loft conversions to an amazing standard which can be seen in the work we do. We like to push boundaries in our field making a project built by DINO DESIGN stand out from the rest. DINO DESIGN is a name you can count on and trust to deliver your project from the paper its drawn on to the material its built from. Explore the rest of our site to learn more about what we offer, and get in touch with any questions. We specialise in: • Single & double-storey extensions • Loft conversions & dormers • Full property refurbishments • Kitchen transformations • Open-plan structural alterations • Landscaping and outdoor works
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Latest review:
Conversions - General- 22 Apr 2026
Had a fantastic experience with Dino Design for an en suite removal. They understood exactly what I wanted and were very responsive throughout, giving me daily updates about how the work was going. So happy with the result- would 100% recommend :)
Erik Novak
Rating: 5 out of 5
Extension Builder in Winchmore Hill
I’m mostly working on my own. Always discussing any work or changes with customers before going ahead with it.
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Latest review:
Handyman- 24 Apr 2026
Helped us move a large shed. Turned up on time, made himself available, and handled a tricky move with care. Easy to work with and good communication throughout.
Planix Ltd
Rating: 5 out of 5
Extension Builder in Winchmore Hill
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
ALTD_carpentry
Rating: 4.8 out of 5
Extension Builder in Winchmore Hill
Altd Carpenry specializes in transforming homes through expert loft conversions, extensions, and comprehensive house renovations. With a commitment to enhancing living spaces and adding value to properties, we offer innovative solutions that blend functionality with aesthetic appeal. Maximizing your home's potential by converting unused attic spaces into stylish and functional living areas, such as extra bedrooms, offices, or lounges. We handle all aspects, including design, structural work, and finishing touches. Revitalizing your property through comprehensive renovations. From modernizing interiors and updating kitchens and bathrooms to complete overhauls, we ensure your home reflects your vision and enhances its functionality. Our team collaborates closely with clients to create bespoke designs that align with their needs and preferences, ensuring every project is tailored to individual requirements At Altd Carpentry , we are dedicated to transforming your home into a more comfortable, stylish, and functional space. Whether you're looking to create additional living areas, expand your home's footprint, or undertake a complete renovation, we have the expertise and dedication to turn your vision into reality.
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Latest review:
Restoration & Refurbishment- 8 Jan 2026
I’m extremely happy with the work carried out by Arindo @ Altd Carpentry. From start to finish, the refurbishment was handled in a very professional and organised manner. The work was completed on time, exactly as agreed, and the quality of workmanship throughout the house is excellent. Everything from the kitchen installation, flooring, tiling, carpentry, electrics and painting was done to a high standard, with great attention to detail. Communication was clear throughout the project, and any questions or small changes were dealt with promptly and without fuss. The site was kept tidy, Arindo was respectful, and it’s clear he and the team take real pride in their work. I wouldn’t hesitate to recommend Altd Carpentry to anyone looking for reliable, skilled, and trustworthy builders. I would happily use them again for future projects.

Top rated Extension Builders

Our Extension Builders in Winchmore Hill, 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 Winchmore Hill?

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 Winchmore Hill 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 Winchmore Hill who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Winchmore Hill?

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

Find extension builders in Winchmore Hill with MyBuilder

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

Step 2: Compare different extension builders in Winchmore Hill

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

Step 3: Hire Winchmore Hill extension builders with confidence

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

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

What to ask a Winchmore Hill extension builder before hiring?

Before hiring an extension builder in Winchmore Hill or extension building company in Winchmore Hill, 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 Winchmore Hill?

An extension builder in Winchmore Hill 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 Winchmore Hill 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 Winchmore Hill?

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 Winchmore Hill 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 Winchmore Hill 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 Winchmore Hill

Can an extension builder in Winchmore Hill help with planning permission?

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

Many Winchmore Hill 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 Winchmore Hill help with materials and finishes?

Yes, most extension builders in Winchmore Hill 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.