Extension Builders in Colney Hatch

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

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Some of our top rated extension builders in Colney Hatch

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Zenstruction
Rating: 5 out of 5
Extension Builder in Colney Hatch
Established in 2005, we are a trusted building company with extensive experience in all aspects of construction, from new builds to fascia and gutter installations. Known for delivering high-quality projects on time and within budget, we maintain the highest standards of workmanship, safety, and reliability. Our expertise spans a wide range of services, ensuring that each project is completed to exceptional standards, meeting both client expectations and industry regulations.
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Latest review:
Extensions- 3 Sep 2018
Zen has helped transform our home, we’ve drawn a lot of confidence from his considered approach and thorough work ethic. He’s so far addressed the cause of cracks to exterior walls of our property and has provided lasting solutions. We also asked him to plaster our hallway and update the banisters for us, Zen has done a great job of reinforcing the strength of the original features whilst retaining the property’s character. Very good with pets too. Looking forward to the next project.
Koncore Plumbing & Heating Ltd
Rating: 5 out of 5
Extension Builder in Colney Hatch
*PLEASE ONLY SHORTLIST US IF YOU ARE HAPPY WITH OUR QUOTE* We have many years of experience and, as such, have seen almost every imaginable plumbing and heating emergency that you can imagine, and we can fix them all. We aim to fix every problem on our first visit, in the fastest time possible. NO JOB TOO BIG OR TOO SMALL, WE DO IT ALL!!
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Latest review:
Gas Work- 13 May 2026
Excellent in every respect, communications, flexibility and efficiency of service.
WOODHOUSE BUILDERS LIMITED
Rating: 4.8 out of 5
Extension Builder in Colney Hatch
Welcome to Woodhouse Builders Ltd, we cover all aspects of property maintenance and no job is too small or big for us. If it’s a small decorating job or full property renovation , loft conversion or extension , we are here to help and provide the best services possible . Our success is built on providing the best services and ensuring that all our customers are happy with our services.
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Latest review:
Extensions- 6 Apr 2020
Art & team did a brilliant job in building my rear extension and renovating the whole apartment. Communication was excellent throughout and the job was completed on time and to the agreed budget. The finish throughout was to a high standard. I would definitely work with these guys again and highly recommend. Regards MZ
Abi Building Services
Rating: 5 out of 5
Extension Builder in Colney Hatch
ABOUT ABS ABI BUILDING SERVICES ABS Abi Building Services is a trusted London-based building and renovation company specialising in high-quality residential construction and refurbishment projects. With a skilled and reliable team of experienced tradesmen, we deliver professional building solutions tailored to each client’s needs, budget, and vision. We work closely with homeowners, landlords, designers, and property developers to ensure every project is completed to a high standard with excellent attention to detail. At ABS, we focus heavily on: • Quality workmanship • Honest and clear communication • Reliability and professionalism • Clean and organised work environments • Strong client relationships • Delivering projects on time and within budget Our services include: • Full House & Flat Refurbishments • Extensions • Loft Conversions • Bathroom Renovations • Kitchen Installations • Structural Alterations • Plumbing & Heating • Electrical Works • Plastering & Rendering • Silicone Rendering Systems • Carpentry & Joinery • Flooring & Tiling • Painting & Decorating • Roofing & External Works • General Building Services Whether it’s a full property renovation or smaller improvement works, ABS Abi Building Services is committed to delivering a smooth, professional service and high-quality finish from start to completion. Based in London | Fully Insured | Residential Specialists Whttps://abibuildingservices.co.u
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Latest review:
Bathroom Fitting- 7 May 2026
Very happy with the new bathroom. Florent removed the old one, disposed of the waste and installed a walking shower wet room, a new toilet, a new sink and a vanity unit. The work was professional and completed to a high standard in good time; the quote was reasonable and the communication was very good. Happy customer!
Monte Design LTD
Rating: 5 out of 5
Extension Builder in Colney Hatch
With over 25 years of refurbishment, building and decorating projects, I have a wide skill base. More than 80% of new work is based on client recommendation highlighting our punctuality, reliability and high standards. I manage a flexible team of highly skilled tradesmen according to each project.
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Latest review:
Bathroom Fitting- 20 Mar 2026
I'm super thrilled that I chose Monte Design to fit both my new bathroom and kitchen. Monte ripped out the old bathroom and kitchen and installed all new ones. The transformation of the two rooms is such a piece of professional work to marvel at. Both rooms had challenging structured walls but Monte worked their magic and made the installation look so natural. With Monte, I got exactly what I wanted and what I paid for and more!
enrike
Rating: 4.9 out of 5
Extension Builder in Colney Hatch
Mani Buildworks Ltd is a trusted leader in the construction industry operating since 2015 offering high-quality services for residential, commercial, and industrial projects. With a commitment to excellence, safety, and sustainability, we provide tailored solutions that meet our clients’ unique needs. Our experienced team is dedicated to delivering projects on time and within budget, while maintaining the highest standards of craftsmanship and customer satisfaction. At Mani Buildworks Ltd , we build with integrity, innovation, and a focus on long-lasting results.
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Latest review:
Plastering- 15 Oct 2018
Enrike plastered my mums hallway and gave her a good price for the work,was reliable and did a good job.
Stena Builders
Rating: 4.9 out of 5
Extension Builder in Colney Hatch
At Stena Builders, we carry out all aspects of property maintenance, refurbishment, and general building work across London. With over 20 years’ experience, we take on a wide range of work including: • Internal repairs and refurbishment • Plastering, decorating, and general carpentry • Property maintenance for homeowners and landlords • Roofing repairs, roof replacements, and all types of roofing work We handle everything from small jobs to larger refurbishments, providing reliable service, clear communication, and quality workmanship throughout.
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Latest review:
Roofing (Flat)- 2 Jun 2026
Efficient and happy to explain the process. Messi was friendly and helpful and got the job sorted promptly. Happy to recommend him.
T & LL construction
Rating: 5 out of 5
Extension Builder in Colney Hatch
T & LL CONSTRUCTION Loft • Extensions • Refurbishments • Home Improvements Bring your home to life with reliable, high‑quality building work. Services we specialise in: • Loft extensions • Full home refurbishments • Kitchen and bathroom renovations • Structural alterations • Roofing and insulation upgrades • Plastering, tiling, flooring • Painting and decorating • General building and repairs Why choose us: • Professional workmanship • Transparent pricing • On-time project delivery • Clean, tidy and respectful work • Fully insured
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Latest review:
Extensions- 12 Nov 2022
VERY VERY PLEASED WITH THE WORK AND THE EXTRAS WE ASKED FOR.
Graal Structural Engineering Ltd
Rating: 5 out of 5
Extension Builder in Colney Hatch
We offer Structural Desing and Calculations for New Build, Extensions, Loft Conversions, etc. Detailed drawings and calculations for Building Control. We offer one-stop-shop services including, planning applications, architectural & structural design, cost estimations, project management and construction works.
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FM Building
Rating: 4.8 out of 5
Extension Builder in Colney Hatch
Honest and friendly company, we here at FM Building focus on complete customer satisfaction and make a promise to our clients to offer best quality services at competitive rates. All projects considered and dealt with in a professional manner regardless of the size or duration.
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Latest review:
Handyman- 12 Oct 2018
The flat was left in a very bad state after the tenants left. Marius was able to undertake all the jobs, from changing carpets, redecorate, repairs and clean up. Also gave good advice as I was not able to attend the site in person so Marius kept me updated with photos. The price was also good. Thank you. Will use these guys again.
ProNoRth General Builders
Rating: 5 out of 5
Extension Builder in Colney Hatch
Hello, I am a skilled builder based in North London. With a dedicated team, I offer comprehensive construction services. From small renovations to large projects, I deliver high-quality workmanship and ensure client satisfaction. Contact us to bring your building dreams to life. pronorthgeneralbuilders
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Latest review:
Norbi is an exceptionally talented carpenter. He was the team lead on our major building project when we restored our Victorian house over an 18 month period. All his work was superior, from replacing ceilings and ceiling roses, to laying the new herringbone floor with electric underfloor heating. He was always polite, well mannered, and respectful. Norbi takes pride in his work and genuinely cares about the finished result in your home, a rare quality amongst many. We cannot recommend him highly enough.
Mansarda Ltd
Rating: 4.9 out of 5
Extension Builder in Colney Hatch
We are professional family run business. Our company specialised in loft conversions, house extensions home renovation, custom furniture and wood flooring in London. We have big experience in building industry with a lot of satisfied customers. Our service delivered by experienced people who will respect your property. All of our work is carried to the highest standard and we guarantee you a good price.
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Latest review:
Loft Conversion- 22 Sep 2021
Mansarda completed the work to a very pleasing standard and were reliable and well organised bringing in various specialists as and when required. Mykola was very flexible on making agreed variations to original plans to improve the final build. He is very knowledgeable and skilled in many aspects of the work. I would recommend him to anyone looking for a loft extension.
OM & SKY Limited
Rating: 5 out of 5
Extension Builder in Colney Hatch
With over 18 years of diverse expertise in the realm of multi-trading, encompassing both domestic and commercial sectors, we take pride in offering comprehensive services for full-scale renovations. Our proficiency spans across a spectrum of disciplines including kitchen and bathroom installations, interior decorating, painting, flooring solutions, carpentry, as well as plumbing and electrical works. At our company, we are committed to delivering high-quality, professional, and reliable services that prioritize the satisfaction and contentment of our clients. We stand behind the excellence of our work and provide a generous 2-year warranty as a testament to our dedication to delivering lasting quality. Moreover, we are dedicated to collaborating with our clients, offering guidance and support to bring their ideas to life. Ensuring accessibility and readiness to assist at any hour, our 24/7 contact line is at your service, ready to address any queries or concerns. We are also proud to hold certification from the BIKBBI (British Institute of Kitchen Bedroom and Bathroom Installers), signifying our commitment to upholding industry standards and best practices. We eagerly anticipate the opportunity to exceed your expectations and bring your visions to fruition.
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Latest review:
Bathroom Fitting- 24 May 2026
We hadn’t changed my Mum's bathroom in 30+ years, so it was a massive job. We definitely made the right choice with this team. Every step was so well planned, and they worked incredibly hard so mum could move back in on time. Everything was changed and updated, and it looks absolutely beautiful now. Laurentiu and his team are so patient, taking the time to talk through various options and their attention to detail for the perfect final finish was spot on. Every little corner and tile looks brilliant. They take great pride in their work. If you're thinking of getting your bathroom done, definitely use them. They are lovely to work with and you won't be disappointed. Highly recommended!
Robert Kastrati
Rating: 5 out of 5
Extension Builder in Colney Hatch
Brick work
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Latest review:
Bricklaying- 18 Jul 2024
Robert is highly professional brick layer, He is polite and communicative. He did excellent job for me. Looking forward to work with his again
AVOTERG Ltd
Rating: 5 out of 5
Extension Builder in Colney Hatch
Our aim is to help clients achieve their objective on time and budget and to the highest standard. We value the good communication with the clients, and try to have as much information as possible with regards to how their project must look when completed.
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Latest review:
The job was a complete refurbishment of a one bed flat, including rewiring and re-plumbing. We would recommend Al and his team without any hesitation. From the very beginning and all the way to completion, we felt very lucky and fortunate to hire them. We found them to be very hardworking, conscientious and professional. The job was a difficult and complex one, but the team still completed within time and within budget. Al's advice made the whole process easier and we found him to be very trustworthy and honest. The end result was better than we originally hoped for and was done to a high standard.
W&T Building Maintenance LTD
Rating: 5 out of 5
Extension Builder in Colney Hatch
WT Construction Service LTD. has been in business since 2002 and we`re specialists in design, planning, structural, building service, house extensions, loft conversions, joinery and renovation work covering whole of London.We guaranteed high quality finish on competitive price. We`re signed FMB,TRUSTMARK
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Latest review:
William and his company fitted a new kitchen for me and did the painting and wallpapering as well. They did a professional high quality job within a short time. I was absolutely satisfied with their service and their prices. They work fast, clear and precisely. I would highly recommend them to anyone.

Top rated Extension Builders

Our Extension Builders in Colney Hatch, 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 Colney Hatch?

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 Colney Hatch 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 Colney Hatch who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Colney Hatch?

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

Find extension builders in Colney Hatch with MyBuilder

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

Step 2: Compare different extension builders in Colney Hatch

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

Step 3: Hire Colney Hatch extension builders with confidence

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

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

What to ask a Colney Hatch extension builder before hiring?

Before hiring an extension builder in Colney Hatch or extension building company in Colney Hatch, 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 Colney Hatch?

An extension builder in Colney Hatch 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 Colney Hatch 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 Colney Hatch?

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 Colney Hatch 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 Colney Hatch 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 Colney Hatch

Can an extension builder in Colney Hatch help with planning permission?

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

Many Colney Hatch 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 Colney Hatch help with materials and finishes?

Yes, most extension builders in Colney Hatch 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.