Extension Builders in Broxbourne

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.1 (18 reviews)

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Some of our top rated extension builders in Broxbourne

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David D.T.M Builders
Rating: 5 out of 5
Extension Builder in Broxbourne
Reliable building and maintenance services you can trust. We specialise in the installation of kitchens from leading brands including Howdens, Wren, Magnet, and IKEA, along with bathrooms and all types of flooring — including herringbone, laminate, and LVT / SPC. With a strong focus on quality, attention to detail, and customer satisfaction, we deliver honest, professional workmanship on every project, from start to finish. 📞 Contact us today for a free, no-obligation quote. Our Guarantee: High-quality workmanship, transparent pricing, and reliable service you can depend on.
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Latest review:
Kitchen Fitting- 24 May 2026
Really pleased with the kitchen cabinets that were fitted for us. The work was done to a very high standard and everything looks fantastic. David was reliable, professional, and paid great attention to detail throughout the job.Thank you.
Sean McCarthy
Rating: 5 out of 5
Extension Builder in Broxbourne
Have been in the building trade for over 30 years specialising in building and carpentry both domestic and comercial. We cover all aspects in a building project. All are trades are skilled trades people. We have experience in full home renovations, extensions, summer houses and out buildings, ranging from ground, work brick work to final finishes.
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Latest review:
Carpentry- 26 Aug 2024
Sean was briliant and the finished job looks perfect. All through the process i felt comfortable that Sean was giving me the right information and that I was paying a fair price. He arrived , did the job, cleaned up and left our house like he'd never been there! I would recommend Sean to everyone looking for a real professional
D & F Brickwork
Rating: 5 out of 5
Extension Builder in Broxbourne
Brickwork and All ground work,driveway,patio etc...
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Latest review:
Driveways (Paved & Loose)- 20 Dec 2025
Fatos arrived on time and completed the drainage repair efficiently, replacing it with paving bricks and cementing everything off smoothly and neatly. Very professional workmanship and a genuinely nice guy to deal with. Highly recommended.
Zenstruction
Rating: 5 out of 5
Extension Builder in Broxbourne
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.
JS COMPLETE BUILDERS LTD
Rating: 5 out of 5
Extension Builder in Broxbourne
I have been in the building industry for thirty five years. I have worked with all types of trades. I have worked as project manager, dealing with clients, surveyors, architects and local council's.
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Latest review:
Restoration & Refurbishment- 4 May 2019
John did a great job replacing broken kitchen tile plus socket fixed hook on the blinds cemented in paving stone in the garden very tidy worker turned up on time & didn’t stop till all the jobs weren’t completed would strongly recommend him .
N M Building and Roofing Ltd
Rating: 5 out of 5
Extension Builder in Broxbourne
Hi we are n.m building and roofing we are a family business that undertake all building / roofing / and / landscaping work all our quotes are free and all work is guaranteed we have many 5 star testimonials for our work we have been working with many happy customers for over 20 years we look forward to hearing from you many thanks Neil N.M building we are also a 5 star approved with trust a trader
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Latest review:
Landscaping- 12 Aug 2024
Neil provided a professional assessment of the job, quoted and carried out the work in a honest and professional manner. Good job tidied up a and provided good advice after the work was completed. I would recommend N M Building and Roofing Ltd
Brendan Hickey Construction
Rating: 5 out of 5
Extension Builder in Broxbourne
I manage and direct my own building company, Brendan Hickey construction. I am a fully qualified carpenter with over 30yrs experience in the construction industry ranging from commercial to residential to civil works, new build and renovations. I undertake all types of carpentry and general building works from inception through to completion.
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Latest review:
Roofing (Pitched)- 11 Dec 2025
⭐⭐⭐⭐⭐ 5-Star Review for Brendan – Exceptional Carpenter & Roof Specialist We hired Brendan originally just to complete a large pitched roof, but very quickly it became clear that his skill, work ethic, and attention to detail were on another level. He quite literally saved our project. What was meant to be a short-term roofing job turned into Brendan staying with us every single day for nearly three months, taking on all of our carpentry work across a major build. It’s incredibly rare to find someone with this level of craftsmanship, reliability, and commitment. Nothing was ever too much trouble, his workmanship was consistently exceptional, and he worked with a level of pride that is almost impossible to find these days. The only reason he eventually stopped was because he had to honour a prior commitment on another job — otherwise I would have happily kept him on until the entire build was finished. Thank you brendan.
JC Group Property Sevices LTD
Rating: 5 out of 5
Extension Builder in Broxbourne
JC Group Ltd is a reliable and experienced building company offering bathroom installations, plumbing, home extensions, and general building works. With over 30 years of combined industry experience, we take pride in delivering high-quality workmanship, clear communication, and projects completed on time and within budget. We are committed to customer satisfaction and maintaining the highest standards on every job, no matter the size.
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Latest review:
We’re absolutely delighted with the extension and the overall experience from start to finish. The workmanship is to a very high standard, and everything was completed professionally and on schedule. Communication throughout the project was excellent, and we were kept informed at every stage. The team were reliable, tidy, and respectful of our home, and the finished extension has exceeded our expectations. We wouldn’t hesitate to recommend them to anyone looking for quality work and a stress-free build.
Century21 lofts and extensions Ltd
Rating: 5 out of 5
Extension Builder in Broxbourne
Century21 lofts and extensions Ltd are a residential design and build company that offers the personal touch.the company was founded on the idea of providing quality workmanship working alongside our clients, to ensure we deliver an excellent service and building solution tailored to your requirements. We provide expertise and experience in full house renovations, loft conversions and single & double storey extensions. We provide comprehensive, no obligation, quotes and are more
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Latest review:
Carpentry- 12 Jun 2025
Replaced roof, doors and windows for a small lean too. Work completed in 2 days. Shev was very professional and so was the others. Very pleased with the job. Thank you!
HARMONY BUILD LTD
Rating: 4.8 out of 5
Extension Builder in Broxbourne
We are a fully insured company of dedicated and experienced construction workers specializing in: - Complete property refurbishments - Extensions - Loft conversions - Bathroom and kitchen refurbishment - Tiling, flooring, and decoration works With over 15+ years of experience, our expertise is suitable for any client, no matter how complex or unpredictable the construction project may be. Experience peace of mind as we go above and beyond to deliver exceptional results every time.
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Latest review:
Restoration & Refurbishment- 9 Apr 2026
Greg and Bart carried out an extensive internal renovation for us in 2023 and I can only apologise for the delay in leaving this review, however I can do so now with the benefit of nearly three years using the spaces. The work included some plastering, full decoration of three rooms, new skirtings, architraves, herringbone flooring throughout and building alcove shelves and cupboards. The team were a pleasure to work with throughout and were honest about where compromises would need to be made with e.g. undulating Victorian floors. They came up with solutions and the end result was of very good quality. Highly recommended.
SH Carpentry
Rating: 5 out of 5
Extension Builder in Broxbourne
I am Sal Ive been a carpenter and joiner for over 22 years and have experience in all aspects of carpentry as well as being a supervisor and foreman for 6 six years. I work to high standard and take pride in my work, reliable and consider myself perfectionist, treating each job with the intention of 100% satisfaction. We provide and complete a range of carpentry services
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Latest review:
Hard Flooring- 2 Jun 2022
Sal is a fantastic worker and he did a great job flooring all the house… I truly recommend him for any job. Thanks Sal
CJE BUILD LTD
Rating: 4.7 out of 5
Extension Builder in Broxbourne
Family run business with over 30 years experience. Specialising in extensions, new builds and carpentry. We provide exceptional work at a fair price!
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Latest review:
Extensions- 9 Jun 2020
Built the pergola in my garden. Very punctual, clean work and stuck to the price he quoted. Brilliant -we are very happy with his work !
Ervis
Rating: 5 out of 5
Extension Builder in Broxbourne
We take on all kind of work that you need to do. We have been doing this for almost 8 years. We even do foundations digging muck away etc. Please do contact us for any further information we more then happy to answer.
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Latest review:
Handyman- 22 Dec 2025
Was very quick to respond and complete this job 3 hours later. To a high standard.
Daniel Gagea
Rating: 5 out of 5
Extension Builder in Broxbourne
We are onest builders, quick and reliable jobs, new on my builder but with lots of experience on the trade, looking for work, we do all kind of refurbish jobs, decorating, carpentry, basic plumbing and electric, new bathrooms or kitchens, back or loft extensions ,landscaping and much more We offer guarantee for our work. Everything seen on the pictures is 100% our work and we have loads of other pictures
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Latest review:
Daniel quoted comprehensively and clearly for both jobs that I needed, building an extension and a raised patio at the end of the garden. He worked extremely hard and diligently every day. Also he would summarise what he would do next and we discussed any changes etc and which tiles or render I preferred. I am very happy with both the patio and extension and Daniel finished everything off to an excellent standard and went above and beyond the quote. I would not hesitate to use him again and recommend him highly.
RV DEVELOPMENTS
Rating: 5 out of 5
Extension Builder in Broxbourne
An established and proven family business who have recently partnered with Tf builders to become Thomas Richards. Still working to the highest standards. Specialising in new build developments Extensions and conversions
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Latest review:
Extensions- 1 Jun 2012
Great job. Reliable and high quality work.
Ladkarn Construction Limited
Rating: 5 out of 5
Extension Builder in Broxbourne
We are a well established construction company with very high expectations and standards of work. We are fully insured and carry out groundworks and landscaping and have a very professional team of operatives ensuring the quality of the works completed match our very high standards. We can carry out larger projects relating to the full construction of houses, extensions or conversions.
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Latest review:
Groundwork & Foundations- 1 Sep 2025
We hired James for 5 days digger work in our garden and he was brilliant, we don’t know what we’d have done without him. He did so much extra for us, from removing a tree and its roots to lifting off and rehanging very heavy gates. We’re really grateful and hope that we can use him again for ground and building works.

4.1

Top rated Extension Builders

Our Extension Builders in Broxbourne, are rated 4.1 out of 5 based on 18 reviews from customers like you.

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

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

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

What are the hourly rates of extension builders in Broxbourne?

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

Find extension builders in Broxbourne with MyBuilder

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

Step 2: Compare different extension builders in Broxbourne

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

Step 3: Hire Broxbourne extension builders with confidence

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

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

What to ask a Broxbourne extension builder before hiring?

Before hiring an extension builder in Broxbourne or extension building company in Broxbourne, 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 Broxbourne?

An extension builder in Broxbourne 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 Broxbourne 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 Broxbourne?

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 Broxbourne 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 Broxbourne 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 Broxbourne

Can an extension builder in Broxbourne help with planning permission?

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

Many Broxbourne 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 Broxbourne help with materials and finishes?

Yes, most extension builders in Broxbourne 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.