Extension Builders in Borehamwood, East of England

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.7 (13 reviews)

Easily find verified Borehamwood, East of England Extension Builders. Just post your job to get quotes from MyBuilder's Extension Builders in Borehamwood, East of England.

Select a service

How it works

Post your job for free

Tell us about your job, and we’ll alert suitable tradespeople in your area. It’s simple and free.

Tradespeople respond

Once your job is posted, you’ll get responses from interested tradespeople through the website.

Review profiles and choose

Browse profiles, work history, and feedback, then choose who you wish to share your details with.

Some of our top rated extension builders in Borehamwood, East of England

2938 Results

Sort by:

Inside Out
Rating: 4.9 out of 5
Extension Builder in Borehamwood, East of England
Inside Out was formed in 2009. We are an established, London based building company operating throughout London and within the M25. We deliver an honest and straight forward service, with quality workmanship at the forefront of everything we do.
Get in touch
Latest review:
Extensions- 10 Oct 2022
A good team, good building technicians, completed the job according to plan and delivered on time.
Arch Construction and Project Management Ltd
Rating: 5 out of 5
Extension Builder in Borehamwood, East of England
Arch Construction and Project Management Ltd is specialist of structural engineering, structural alterations,restoration, extensions, loft conversions and in middle&large sized projects on highest standard. We offer full building site and/or project management from concept to completion based on 22 years experience in construction industry with hassle and frustration free experience.
Get in touch
Latest review:
Extensions- 12 Jan 2023
George and his team did an excellent job in building our extension and dealing patiently with our requests or changes. We had weekly face to face meetings with George and he would respond promptly to any issue. A very professional approach to the build project and an excellent result of build quality.
Alpha Construction & Development Group Ltd
Rating: 5 out of 5
Extension Builder in Borehamwood, East of England
Alpha Construction & Development Group Ltd offer bespoke service with a focus on the needs of our customers. We deliver one project at a time, without delays and stress-free. From small to big projects, we strive for the highest quality of work. We specialise in but are not limited to new builds, extensions, lofts conversions, structural works, roofing, plastering, rendering, painting and decorating, renovations, kitchen and bathroom fittings, pavings, brickwork, plumbing, full refurbishments.
Get in touch
Latest review:
Bathroom Fitting- 25 Feb 2022
This was the best experience I have ever had with a team of builders. Aldo and Leo were polite, organised and their workmanship is of a very high standard. They replaced the bathroom in our rental flat, and it looks really smart. They also refurbished the kitchen, replacing flooring and decorated the whole flat. We have just shown it to an estate agent as we are planning to sell it and they were very impressed. Aldo was very helpful in making suggestions of small changes that would save us money and delivered the project on time and right on budget. Would recommend them and will certainly use them again.
MYCO Contractors Limited
Rating: 5 out of 5
Extension Builder in Borehamwood, East of England
I am an experienced and fully insured builder. On average I and my team build and renovate 5 extensions per year. Our current or old clients are always ready to share positive feedback about our work. We work off the ready plans which are usually prepared by the clients themselves and approved by the local authority. As of now (30/03/2023) my availability to start the new project is late April or early May. Please get in touch and I will be happy to assist.
Get in touch
Latest review:
Extensions- 4 Aug 2020
On a cold November evening, Tony and his team turned up to provide a quote and within a week this was received. The quoted price came in the middle of the pile, which was a good start and aligned closely to the ballpark figure I'd received from a friend who was also in the trade. We then visited a site they were finishing off, and Tony had the confidence to ask us to speak to the client without him there and they gave us the confidence to proceed. They started in January 2020 and rapidly moved through the works and engaged closely with my architect, Structural engineer and building control and proceeded based on their recommendations strictly. We lived in the property as build progressed and the team ensured that the site was secure every evening and we were safe. As COVID-19 hit and we went into Lockdown, the team continued to come and work (we were separated from them as the house was boarded up) and the only challenge was getting supplies. Tony scoured all over London, picking up items as best as he could and work continued. Once they'd broken through into the old part of the house they continued to progress rapidly and showed utter professionalism. The team lead's attention to detail is impressive, and he gave great recommendations on what would be the right approach when we were laying out features such as window sizing and lighting. The standard of work is excellent and I would highly recommend them.
Marian Disca
Rating: 5 out of 5
Extension Builder in Borehamwood, East of England
Hi We undertake a variety of work,loft extension,bathrooms,kitchens,roofs,floors.etc With a experience of 15years there’s not much we haven’t done. Reference available!
Get in touch
Latest review:
Joinery & Cabinet Making- 19 Apr 2019
Marian is i would say a master craftsman . He did an excellent job with the 2 alcove bookshelves. The alcoves were big and i wanted most of the period features and he made it exactly as per my specifications he also helped mount my tv on one of the units and looks very clean and he also helped conceal all wiring for my electric fireplace. I will definitely use his services again.
CIF Builders
Rating: 5 out of 5
Extension Builder in Borehamwood, East of England
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.
Get in touch
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!
Feras
Rating: 5 out of 5
Extension Builder in Borehamwood, East of England
High quality
Get in touch
Latest review:
Painting & Decorating- 25 Feb 2026
Good job, excellent painting and clean and tidy
BUILDING BLUEPRINTS
Rating: 5 out of 5
Extension Builder in Borehamwood, East of England
A highly experienced and qualified contractors from a Carpentry & Joinery background. Taking on diverse scoped projects ranging from Domestic to Commercial.In the residential sector from renovations and refurbishments at the same time carrying many trades in house. We are ready for your project
Get in touch
Latest review:
Carpentry- 19 Sep 2015
Not only was Ian's quote to do the loft conversion very reasonable, he was very reliable, tidy & very helpful when we had a difficult situation. The work was done in a quick time, when he said he was going to be on site he was, at no time did he let me down. The standard of work was excellent, I would recommend Ian & wouldn't hesitate to use him in the future.
Lead Renovations Ltd
Rating: 5 out of 5
Extension Builder in Borehamwood, East of England
Refresh Renovations is changing the way the world renovates. Prioritising communication and transparency mitigates the pitfalls associated with stressful and poorly executed renovations. Our approach focuses on thorough planning and streamlined communication to deliver a stress-free and enjoyable renovation with fantastic results you can be proud of.
Get in touch
Latest review:
Great work and very professional. Organisation and communication were top tier plus the finished work and tidiness were unmatched. 100% recommended.
Devi
Rating: 5 out of 5
Extension Builder in Borehamwood, East of England
Shehu builders With many years of experience in construction industry, I work to very high standards and my customers are always extremely satisfied with my work.
Get in touch
Latest review:
Restoration & Refurbishment- 3 Oct 2025
Devi is a very nice, polite and more importantly calm man. He has just finished renovating our entire flat to a very good standards. Thank you Devi!
Charge utilities
Rating: 5 out of 5
Extension Builder in Borehamwood, East of England
Experience machine Operator. Who comes with digger and sum tools breaker petrol saw cable locater. Digging foundations for buildings and drive ways and garden levelling also i can prepare for utilities such as gas water electricity and drainage etc
Get in touch
Latest review:
Groundwork & Foundations- 6 Jul 2026
amazing got the job sorted out
Rafa360
Rating: 5 out of 5
Extension Builder in Borehamwood, East of England
Hello, I'm Rafa360. I'm experiencing digger and dumper driver. I have many years of experience with groundwork, demolition, construction sites. I have private mini digger and many other tools whatsoever you need to do your work. Rafa360 based in Greenford London offering service of Groundwork Mini digger and dumper Digging foundation for extension Digging trenches Demolition Shed removal Wall removal Concrete path, base removal Concreting Shed base Retaining wall Handyman Fencing Driveway Garden cleaners Garden Levelling Tree stump removal And many others Nothing job is too big or to small no hesitate to invite me if you need to do your task with good quality and responsibilities person. Regards Rafa360
Get in touch
Latest review:
Groundwork & Foundations- 13 Feb 2026
Rafa is a good tradesman and worked well. Would hire him again.
Janos & Dalma construction ldt
Rating: 4 out of 5
Extension Builder in Borehamwood, East of England
Hello I’m Janos I hew 10 years experience in London I've worked with one of the Big companies, either S R M or S&T Painter and decorator end We do internal and external work for fast clean reliable and precise work guaranteed warranty
Get in touch
Latest review:
Painting & Decorating- 21 Mar 2026
The Job went well, good work.
Brando Developments Ltd
Rating: 3.7 out of 5
Extension Builder in Borehamwood, East of England
Brando Developments, with a solid decade of trading since its establishment in 2012, has become a trusted name in the industry. Specializing in a range of services, we proudly collaborate with local estate agents, addressing diverse needs such as maintenance issues, end-of-tenancy work, and expert painting and decorating services. Our dedicated team includes skilled professionals, including gas engineers, electricians, and roofers, ensuring that we offer comprehensive solutions for our clients. With a proven track record, we continue to provide top-notch services, making property management and development a seamless experience for our valued customers.
Get in touch
Latest review:
Bathroom Fitting- 10 Oct 2024
Really good team. The work was excellent. The only thing to comment is that the team could have finished the work faster but overall I’m happy with their work. Very involved and caring team. It felt like they were doing their own bathroom. Good price as well.
n-vico ltd
Rating: 4.8 out of 5
Extension Builder in Borehamwood, East of England
Marius, as owner of N-Vico LTD has over 17 years experience in the construction industry starting out as a carpenter. Now we are a highly skilled team of builders that provides a complete residential refurbishment service
Get in touch
Latest review:
Extensions- 21 Jun 2017
COWBOYS! Absolute Nightmare! Marius left the job incomplete, after repeatedly demanding more money before completion! Not to be trusted! Workmanship wasn't as good as he would lead you to believe, I have pics & videos of: Cigarette butts in mortar. Bricklaying in the rain, not water-tight roof/felt work, drainage, unsafe electrical work which needs to be redone. Left my neighbour side of roof damaged + with a hole now for a month. Damaged door/table/gate. Of course, he denies any wrongdoing Please be very careful if you have to use this fraud. Get a FULLY detailed itemised quote! Draw up your own contract - do not use his. Do NOT ever pay CASH. Produce a schedule of works - pay him ONLY when the specific task is 100% complete - leaves lots of work unfinished but then lies claiming its complete at interim payments. Get a FIXED price for every aspect of work - do not have "TBC" or ambiguous costs - if he can charge more - he will. Do NOT use his electrician, cringeworthy attempt to "price up" a simple job and damaged roof. Buy ALL Materials yourself OR require receipts for anything he buys. Request ALL Invoices. Ensure he follows specs - offered me £250 off total job cost, if I used a inferior type of rooflight to the one required in spec. Ensure he doesn't keep rubbish on site, Hire a skip. Keep all communication on record, email, text, even voice record him as he is a pathological liar. Very dishonest, delusional and frankly embarrassing.
Alban's A Team Solution
Rating: 5 out of 5
Extension Builder in Borehamwood, East of England
Hi my name is Alban I am a builder. I am honest and hardworking person. I have 18 years experience on general building trade. I undertake all building work, new build houses, new extensions, loft conversion. We also do all refurbishment interior and exterior. All structure and good knowledge of architectural plans.
Get in touch
Latest review:
Carpentry- 20 Oct 2017
nice guy, good comms, very good cartentry

3.7

Top rated Extension Builders

Our Extension Builders in Borehamwood, East of England, are rated 3.7 out of 5 based on 13 reviews from customers like you.

Quality screening

Easily find verified local tradespeople. Just post your job to get quotes from tradespeople near you across the UK.

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

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, East of England 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, East of England who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Borehamwood, East of England?

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

Find extension builders in Borehamwood, East of England with MyBuilder

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

Step 2: Compare different extension builders in Borehamwood, East of England

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

Step 3: Hire Borehamwood, East of England extension builders with confidence

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

What to ask a Borehamwood, East of England extension builder before hiring?

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

An extension builder in Borehamwood, East of England 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, East of England 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, East of England?

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, East of England 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, East of England 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, East of England

Can an extension builder in Borehamwood, East of England help with planning permission?

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

Many Borehamwood, East of England 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, East of England help with materials and finishes?

Yes, most extension builders in Borehamwood, East of England 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.