Extension Builders in Colney Heath

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.4 (13 reviews)

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Some of our top rated extension builders in Colney Heath

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DUMITRU HUJA
Rating: 5 out of 5
Extension Builder in Colney Heath
Extensions loft conversation ,refurbishment,bathroom fitting,kitchen fitting,electrical and plumbing
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Latest review:
Kitchen Fitting- 17 Nov 2025
We recently had our kitchen refurbished by Dumitru, and we couldn’t be happier with how everything turned out. He’s one of those rare builders who combines professionalism with real care for the details. He worked efficiently, kept the place tidy throughout the project, and always cleaned up after himself — which honestly made such a difference when living through a renovation. What I appreciated most was how supportive he was when it came to choosing the right materials. He guided us through the options without ever pushing, and his advice proved spot-on. The final result is exactly what we hoped for and more. If you’re looking for someone reliable, skilled, and easy to work with, I totally recommend Dumitru P.S. For anyone curious about the scope of the work: Dumitru changed our worktop, removed the old tiles and redid the flooring with laminate, installed a new cooker and hob, fitted a new sink, repaired the walls after the new boiler went in, and repainted everything. Top work
Prime Basement Construction Ltd
Rating: 5 out of 5
Extension Builder in Colney Heath
Basement construction and conversion company with over 12 years experience.
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Latest review:
Groundwork & Foundations- 5 Feb 2021
Honest reliable friendly team, who go out there way ,excellent service.
Waven.costruction and development ltd
Rating: 5 out of 5
Extension Builder in Colney Heath
20 years experience in all aspects of plastering. Complete refurbishments, extensions and loft conversions.
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Latest review:
Plastering- 21 Jul 2016
Very impressed with John’s work and would highly recommend him. John’s work was very good quality, he recommended practical solutions to problems and had a very positive can do attitude fixing up areas outside of the job I hired him for free of charge. Very happy
MarioM Construction Ltd.
Rating: 5 out of 5
Extension Builder in Colney Heath
We have spent 15 years in the construction sector. Having experience both in the private sector and commercial sector, we use innovative and modern technology to complete your work. In effect, we achieve higher precision, shorter work times and due to this a lower cost for you. Our deal with a builders’ merchant allows customers to access unique deals which are not available elsewhere. You can learn even more about us by looking at our past projects
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Latest review:
Extensions- 18 Jul 2016
Mario is a brilliant guy with full knowledge of the job. His workers were very punctual and hardworking and finished the job well. I would definitely recommend Mario to my friends and relatives and will use him in the future. Excellent Finish!!!
Luke Smith Plastering
No reviews yet
Extension Builder in Colney Heath
I run my own building company.i run a tight ship.I deal with construction and design and details.we take on all projects.we work to high spec and aim to keep growing our construction firm.
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Smart environment
Rating: 5 out of 5
Extension Builder in Colney Heath
We do carpentry and roofing works. We present our work professionally. We strive to please the customer. We have experience over the years. Our prices compete with everyone. Our headquarters is in London
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Latest review:
Carpentry- 26 Aug 2022
I'm very happy l hired this person for the job.He did an excellent job from start to finish.Very neat work and even cleaned up afterwards.l will definitely hire him again if needed.Will sure recommend him to others.He's well spoken and very polite.Price wise is very reasonable.
K&KBuilder
No reviews yet
Extension Builder in Colney Heath
Thank you for taking the time to check our page. Over the past 15 years I've been working on various construction jobs domestic and commercial, new builds and refurbishments. From jobs such as kitchen fitting, doors-internal and external, architrave, flooring, skirting, shelving, stairs etc. to more complex jobs like extensions, loft conversions and even complete house refurbishments. We are a hard working and reliable team determined to help you in any of your projects. We can change your house into a dream home so don't hesitate to contact us for any job, question or inquiry We are here for you!
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BSM Interior Ltd
Rating: 4.8 out of 5
Extension Builder in Colney Heath
Your search for qualified and skilled builders ends here. Made Construction Simple is a team of licensed and insured specialists builders in London with over one decades of combined experience. From extensive loft conversion, extension,refurbishments to bathroom and kitchen renovations, we offer a wide range of services. You can rest assured that we have the expertise to efficiently handle your construction project. Good and dependable work isn’t possible without the necessary qualifications. Every professional on our team is qualified and highly experienced. We undertake all aspects of planning, building and construction services according to the highest standards of workmanship. We prioritise quality, safety and consistency at every step of the way. Our services are compliant with local authority laws and government regulations. We pride ourselves on our exceptional attention to detail. In addition to superior functionality and durability, we don’t forget about how the final result looks. We strive to deliver the best of structural integrity and aesthetics.   Our professional builders go above and beyond to earn your trust. We are dedicated to starting and completing jobs on time for 100% customer satisfaction. If there are any unforeseen delays, you will be promptly informed and kept in the loop. We also ensure that every project is within the specified budget.
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Latest review:
Kitchen Fitting- 9 Jul 2026
I hired Blend for a light house renovation. It started off really well then towards the end he ghosted me. No reason given. He didn’t answer phone calls or texts. There was no fight or disagreement. There is no decent reason why he shouldn’t communicate with a client. You can simply just say you have another job or you are not interested any longer. You don’t ask a client to buy stuff knowing you are not going to show up. It is an unacceptable and unprofessional behaviour. Because of this it’s cost me time that I can’t get back. But I guess it is what it is. I had to find another builder to complete the job. Some of which was not done properly. For example: my kitchen sink was leaking both inside and out. Had to buy a new toilet as something was broken while he was refitting it and etc. Pros: Blend is a nice and easy person to deal with. He is generally a nice guy. Tiling ✅ Cons: Finishing is not so great. could be a lot better. I also found patches and over paint on doors and others.
Miron
Rating: 5 out of 5
Extension Builder in Colney Heath
General billing Painting, loft conversion, extension, handyman
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Latest review:
Handyman- 15 Sep 2021
He was very well manned and professional and did a little work more work without charging extra. He is very tidy and the price was very reasonable. I will certainly hire him again in the future . Thx Miron xxx
Breheny building and landscaping
Rating: 5 out of 5
Extension Builder in Colney Heath
We are professional builders with 4o years experience and 3 generations in the profession, pride our selves on providing good communication and quality of work , and we try to use environmental efficiency on all our projects . 40+ years experience in the building and landscaping trade , friendly and reasonably priced . We have folling certificates Level 2 brick work Street works licence All machinery licenses digger dumper etc Water civils and electric civils license Can supply grab lorry and have waste carrying license .
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Latest review:
Breheny builders visited my property gave me a quote and did a very good good job of the patio exactly in the time frame needed also within my budget they were well mannered and reliable I would definitely recommend and I will be using again to do my drive way
ScutariConstruction
Rating: 5 out of 5
Extension Builder in Colney Heath
Scutari Construction is a limited company based in London. We are a very reliable and professional team of tradesmen with over 10 years of experience on the building industry, committed to deliver the highest levels of quality and service to our clients.
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Latest review:
Extensions- 14 Apr 2021
Mel and team completely transformed our house in a very timely and professional manner. I honestly cannot say enough good things about him. The team works really hard and their model provides the fastest, highest quality construction at a reasonable price. Use these guys!
TPS Groundwork & constrution
Rating: 5 out of 5
Extension Builder in Colney Heath
extensions, driveways,paving,groundwork
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Latest review:
Bricklaying- 6 Nov 2020
Tony gave me a competitive quote, not the cheapest but everything about him was professional and gave me confidence. His team arrived on time the day of the build and were helpful and pleasant. They worked all day and cleaned up and covered their work until they arrived on time the next morning. They worked hard all day. After the wall and piers were build all the brickwork and joints were left clean and crisp. I am very happy with the wall. I have renovated many properties over the years and the standard of this job was excellent. I highly recommend them.
CIF Builders
Rating: 5 out of 5
Extension Builder in Colney Heath
We are family run business and have been in the trade since 2001. Our professional team will always give the best they can to achieve optimal results and most important for us are the finishing details and customer satisfaction. We can provide a range of different services from conversions, to extensions, bathroom and kitchen fittings and full restoration.
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Latest review:
Extensions- 28 Mar 2021
Amazing work from CIF Builders: John and his team delivered an amazingly looking extension and were a pleasure to work with. I have no doubt I will employ them again!
KCK Renovation
Rating: 5 out of 5
Extension Builder in Colney Heath
I have been involved in the building industry for over 15 years with an extensive portfolio of renovated properties across London. My background comes from interior design which has lead me over the years to develop a great eye for interior architecture which has therefore abled me to give my clients innovated and creative ideas for all their property needs,Within our work quality and design is key.
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Latest review:
Extensions- 25 Apr 2018
Initially when using My Builder, I didn’t really have any intentions of working with tradesmen from here, it was more to benchmark and see where a quotation would be priced however upon meeting Vijay, that pretty much changed from the first meeting. If you’re looking for someone who treats your project like their own, he’s the man. Vijay takes 110% pride and care into every aspect of your project. Although work is yet to commence on my property, the spec Vijay has put together itself is worth a lot of money, and most would consider it invaluable. From my opinion so far, no stone will be left unturned where Vijay’s project management and work is concerned. Without thinking twice, I would highly recommend anyone considering Vijay, to at the very least, meet with him and show him the work required. From there on, your mind will be made up. Looking forward to working with him in due course
Springfield Conversions
Rating: 4 out of 5
Extension Builder in Colney Heath
I have been in the building trade for 35 years. I undertake all aspects of building work on residential properties. I am experienced in refurbishments, extensions, garage conversions, all aspects of landscaping, interior and exterior decorating, installation of bathrooms and kitchens, driveways and all minor repair work.
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Latest review:
Extensions- 1 Aug 2023
Originally quoted for a downstairs extension and wall interval wall removal, I went ahead with the wall removal and was very pleased with the result - Chris and the other chap were lovely and did a great job; will hire again in the future.
SPEKT GROUP LTD
Rating: 4.8 out of 5
Extension Builder in Colney Heath
We are a team father and sons, with over 30 years of experience in Wood Occupations and construction sites, who's goal it's to provide our customers with quality services.
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Latest review:
Carpentry- 11 Mar 2025
Great work and would recommend!

3.4

Top rated Extension Builders

Our Extension Builders in Colney Heath, are rated 3.4 out of 5 based on 13 reviews from customers like you.

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What types of services are offered by local extension builders in Colney Heath?

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 Heath 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 Heath who are available and interested can respond to your post.

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

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

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

Find extension builders in Colney Heath with MyBuilder

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

Step 2: Compare different extension builders in Colney Heath

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

Step 3: Hire Colney Heath extension builders with confidence

After gathering all the information and quotes from your chosen home extension builders in Colney Heath, 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 Heath extension builders are ready to help. Use MyBuilder today to find the right professional for your home extension.

What to ask a Colney Heath extension builder before hiring?

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

An extension builder in Colney Heath 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 Heath 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 Heath?

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 Heath 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 Heath 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 Heath

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

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

Many Colney Heath 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 Heath help with materials and finishes?

Yes, most extension builders in Colney Heath 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.