Extension Builders in Borehamwood

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.6 (12 reviews)

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Some of our top rated extension builders in Borehamwood

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A Brockwitz Builders ltd
Rating: 5 out of 5
Extension Builder in Borehamwood
AJ Brockwitz & Sons are Which Trusted Trader & Federation of Master Builders registered. We are a family run Building Company based in Harrow with over 30 years experience in the industry, we specialize in all aspects of construction.
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Latest review:
Extensions- 28 Jul 2017
Tony and his team recently completed a large ground floor extension. The guys were polite and courteous, on time every day, worked hard through the day and kept a clean and tidy site. Tony was very good at anticipating issues before they arose, making useful suggestions and giving us time to plan. We had a previous bad experience with a cowboy builder and Tony was especially sympathetic and understanding. Tony and his team were always transparent and upfront and very easy to work with. Tony was recommended by neighbours that he had worked for and we would also highly recommend him.
Dioni construction ltd
Rating: 5 out of 5
Extension Builder in Borehamwood
Hi there! My name is Drilon and I am a builder who has been in the building trade for over 10 years. I have completed numerous jobs all over London. My company undertake work like extensions,bathroom, kitchen, flooring,loft conversions as well as general refurbishments. My previous customers are always happy with the quality of my work as well as my time keeping and how clean I keep the site during the project. I am based in North London and provide free estimates for all potential projects.
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Latest review:
Loft Conversion- 16 Feb 2023
Very good builders, very kind, I’m absolutely recommending them
Ceca Developments LTD
Rating: 5 out of 5
Extension Builder in Borehamwood
Hael Construction Ltd, a proud member of the Federation of master builders, is a trusted construction company based in North London, delivering high-quality building services across the region. We specialise in new builds, extensions, loft conversions, renovations, groundworks, electrical installations, and plumbing. With a skilled team of qualified tradespeople and experienced project managers, we provide a complete service from design to completion. Our focus is on quality workmanship, transparent communication, and delivering projects on time and within budget.
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Latest review:
Extensions- 23 May 2022
Ceca Developments have done an outstanding work on our side and rear extension project, and we would definitely recommend this company. Firstly, they have offered a really competitive quote for the work and have been very transparent and detailed in regards to how long it will take to complete the project. Sebastjan has been a pleasure to deal with and was very helpful during the project, providing honest and useful recommendations and being available every time we needed anything. All the work has been completed to a very high standard and to the agreed timelines. We did not have to worry about anything during the whole project, which made this a very pleasant experience.
Zeenish construction limited
Rating: 5 out of 5
Extension Builder in Borehamwood
Welcome to Zeenish Construction Limited , With over 30 years experience in the construction industry. No job too small electric plumbing and general building works undertaken and specialise in handyman services
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Latest review:
Plumbing- 17 Aug 2013
Excellent job, very good value for money and very quick and efficient fitter. I am very pleased with the work and highly recommend this tradesman.
Antonio
Rating: 4.6 out of 5
Extension Builder in Borehamwood
My name is Antonio Sula Job’s i can do: •HOME RENOVATION •KITCHEN •PAINTING •BATHROOM FITTER •CARPENTERY •EXTENCION •FLORING •GARDEN •TILE For more information you can contact me
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Latest review:
Carpentry- 30 Jul 2026
Very well. Finished on time. Pricy but worth it Will hire him again
AGB CONSTRUCTION, LTD
Rating: 5 out of 5
Extension Builder in Borehamwood
AGB CONSTRUCTION LTD Is specialised in new build and full property refurbishments. For us, priority is the good customer service.
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Latest review:
Bricklaying- 29 May 2026
Giani and his colleague repaired our wall beautifully for a reasonable price. He talked us through the issues that caused the wall to fail and explained what needed doing. He started the job the next morning arriving promptly and then went about the job with care and pride. I can whole heartedly recommend AGB Construction to anyone looking for builders with good communication, a sincere pride in their work and honest fair pricing.
A&B London Construction Services LTD
Rating: 5 out of 5
Extension Builder in Borehamwood
With experience and knowledge of the industry of more than 10 years duration, we have developed a reputation for providing both a high quality and friendly service. When you need help with any type of building work, Domestic or Commercial, please contact us anytime we will be happy to help.
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Latest review:
Restoration & Refurbishment- 29 Mar 2018
A pleasure to deal with . Agim and his team worked hard to a very good standard.They often worked later than i would expect so that they were ready to move onto the next stage of the job the following day. Agim was very knowledgeable of all building regulations and was ready to offer me solutions when they were needed. All his team were courteous , polite and also knowledgeable. This was the first time I have used A&B but I would have no hesitation of using them again and recommending them to others.
Mbalau Construction LTD
Rating: 5 out of 5
Extension Builder in Borehamwood
Builder with 20 years of experience . I provide a wide range of building services such as: loft conversion, extensions,bathroom refurbishment,house refurbishment , plumbing and electric etc . I have the tools,knowledge and team to build a house from start to finish . I can provide references and pictures of previous work upon request .
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Latest review:
Complete refurbishment of 2 bed 1100 sq ft flat. Including removal internal walls Ripping out and renovating 2 bathrooms. Involving new layout replumbng and relocation of #electrics. Tileing Preparing and laying wood flooring throughout. Fitting shelving and book case. The work over 2 months involved all building skills. Throughout Marcel and his highly skilled crew were efficient clean and resourceful. I would highly recommend for all building and decoration work.
ZDRAVA PROPERTY MANAGEMENT LIMITED
Rating: 5 out of 5
Extension Builder in Borehamwood
Renovation and Restoration
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Latest review:
Restoration & Refurbishment- 29 Sep 2023
Renovated my 3 rooms and made it brand new again:) did a very good job and more, very reliable and did the job in a very good time frame, I am loving my house Would definitely Recommend
BRH
Rating: 5 out of 5
Extension Builder in Borehamwood
We are a professional home repair and maintenance company dedicated to providing high-quality services to homeowners and property managers. With a skilled team of technicians and years of experience, we specialize in a wide range of home improvement solutions, including plumbing, electrical work, carpentry, painting, drywall repair, and general handyman services. Our mission is to deliver reliable, efficient, and affordable repairs that help maintain the safety, functionality, and beauty of your home. Whether it’s a small fix or a major renovation, we are committed to getting the job done right the first time. Customer satisfaction is at the heart of everything we do, and we strive to build long-lasting relationships through trust, professionalism, and excellent service. Not : no advance payment
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Latest review:
Roofing (Pitched)- 3 Jul 2026
BRH were fantastic at finding the issue with the roof leak and made sure to repair it with a 1 year warranty as well. They are superb at their job and I will 100% recommend them for roof repairs
Tomyc Constructions Limited
Rating: 5 out of 5
Extension Builder in Borehamwood
Tomyc Constructions Limited is a London-based renovation and building company. We specialise in full property refurbishments, bathrooms, kitchens, painting, flooring, and general construction. Our services also include microcement finishes, decorative paints, and feature wall creations. Fully insured, reliable, and committed to delivering high-quality results on time and to a professional standard. All our work comes with a one-year guarantee.
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Latest review:
Really happy with our new bathroom. The team from Tomyc Constructions were professional, tidy, and finished everything to a high standard. Work was done on time and exactly as promised. Highly recommend.
Otters Group Ltd
Rating: 5 out of 5
Extension Builder in Borehamwood
Welcome to Otters Group Ltd page, With over 20 years of experience in the construction industry, we deliver high-quality construction solutions for both residential and commercial projects. From start to finish, we manage every aspect of construction with professionalism, precision, and care. Our team of skilled, reliable, and dedicated professionals is committed to exceeding expectations by delivering projects on time, within budget, and to the highest standards of quality. Customer satisfaction is at the heart of everything we do. We work closely with our clients throughout the construction process, upon completion, and during the defect liability period to ensure long-lasting results and peace of mind. **Your time, cost, and quality are our priority on every project.**
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Latest review:
Painting & Decorating- 19 Jun 2024
I recently had the pleasure of working with Mahdi and his team, and they were excellent. They were knowledgeable, did the work efficiently, and cleaned up thoroughly afterward. I was extremely satisfied with the quality of their work. I would highly recommend them and look forward to working with them again in the future.
BML Building Services
Rating: 4.9 out of 5
Extension Builder in Borehamwood
Very hard working and take a lot of pride in the work done and attention to detail.
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Latest review:
Bricklaying- 20 Jul 2026
Ben was very professional , quick response, good communication , his work was great and he left the site very clear after he finished the job. I will definitely using his services again and highly recommend him to anyone who needs his services. Thank you
KG DESIGN & BUILD LTD
Rating: 5 out of 5
Extension Builder in Borehamwood
Hi I`m Kleida .I worked in Building industry for a while now and I have built a quite a knowledge on extensions loft conversion and refurbishment . I recently decided to start working for myself .I also have a very good working team with various knowledge on various stages of projects .
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Latest review:
Conversions - General- 8 Oct 2025
Gaz and his team were professional and hard working, and clear about what would happen when. The job is now finished to a good standard, and on time.
Aurelian
Rating: 5 out of 5
Extension Builder in Borehamwood
Hi we are" Probuildynamics" more photos can be check via FB or or company website.
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Latest review:
He is very methodical and does the solid work . No short cut and messy work.
Pine Construction Ltd.
Rating: 5 out of 5
Extension Builder in Borehamwood
As a civil engineer and principal building contractor we consult, design, construct and project manage any dwelling and commercial projects from minor repairs to complete new-build as well as any type of restoration/renovation and basement construction projects.
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Latest review:
Extensions- 19 Oct 2017
The best team in London to work with they are highly skilled professionals and very easy to work with looking forward to work with them again

3.6

Top rated Extension Builders

Our Extension Builders in Borehamwood, are rated 3.6 out of 5 based on 12 reviews from customers like you.

Quality screening

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

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

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

What are the hourly rates of extension builders in Borehamwood?

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

Find extension builders in Borehamwood with MyBuilder

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

Step 2: Compare different extension builders in Borehamwood

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

Step 3: Hire Borehamwood extension builders with confidence

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

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

What to ask a Borehamwood extension builder before hiring?

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

An extension builder in Borehamwood 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 Borehamwood 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 Borehamwood?

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 Borehamwood 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 Borehamwood 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 Borehamwood

Can an extension builder in Borehamwood help with planning permission?

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

Many Borehamwood 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 Borehamwood help with materials and finishes?

Yes, most extension builders in Borehamwood 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.