Extension builders in Borehamwood

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.3 (12 reviews)

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

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

3010 Results

Sort by:

Andrei
No reviews yet
Extension Builder in Borehamwood
My occupation building. I am working carpenter 5 years. I building loft conversion Extension any first and second fix.
Get in touch
SLL PrimeBuild Ltd
New on MyBuilder
Extension Builder in Borehamwood
Hi, I'm the director of SLL PrimeBuild Ltd, a reliable local building company based in North London / Haringey. I have over 10 years of hands-on experience in the trade — working as a self-employed builder and for established companies — delivering high-quality work across residential projects. We specialise in: ✅ Loft conversions & house extensions ✅ Full renovations & refurbishments ✅ Kitchens & bathrooms ✅ Roofing, brickwork & repointing ✅ General property maintenance & repairs Fully insured, reliable, and detail-focused. We provide free written quotes and keep clients updated at every step. Send me a message — I look forward to hearing from you!
Get in touch
KG BUILD
Rating: 5 out of 5
Extension Builder in Borehamwood
With your specifications and our expertise, we happily take on any building work and produce excellent results. Extensions, Loft conversions, kitchens, bathrooms, garden rooms/studios/outbuildings, roofing, flooring, carpentry and joinery etc
Get in touch
Latest review:
Carpentry- 13 Dec 2025
Kwame did a great job and was thoughtful, communicative and very skilled with the work he was carrying out on our joists. I would recommend KG build to anyone looking for a good price and a high standard of work.
Patrick JR
Rating: 5 out of 5
Extension Builder in Borehamwood
Experienced Tradesman who enjoys providing a friendly and reliable service to customers. No job too small from Demolition and groundwork’s to first fix of structures to second fix finishing jobs such as hanging TVs and mirrors. Please get in touch for a no obligation quote and estimated timescale.
Get in touch
Latest review:
Handyman- 4 Aug 2021
Great during the pandemic, able to change appointment due to isolation. Job completed in a timely manner and work space left clean. Job completed a month ago and still perfect. Thanks
IQSURV LTD
No reviews yet
Extension Builder in Borehamwood
IQSURV LTD is a RICS Regulated Firm and is a Chartered member of CIOB. The premier destination for top-quality refurbishment and construction services. With years of industry experience, we specialize in transforming spaces into stunning, functional environments. At IQSURV, we understand the significance of creating a space that reflects your unique vision while meeting specific requirements. Whether it’s a residential property, commercial space, or large-scale project, our skilled professionals are here to bring your ideas to life.
Get in touch
Premium bathroom solutions
No reviews yet
Extension Builder in Borehamwood
We specialize in comprehensive bathroom renovations – from design to final finishing. With years of experience, we create both modern and classic designs, paying attention to the highest quality workmanship and every detail. We offer tiling, fixture installation, plumbing and electrical work, and professional advice at every stage of the project. Punctuality, reliability, and customer satisfaction are the foundations of our business. We create bathrooms that are functional, aesthetically pleasing, and tailored to individual needs.
Get in touch
Super Active Partners Limited
No reviews yet
Extension Builder in Borehamwood
A family owned construction company with over 40 years of experience. We provide our customers with the fastest and smoothest of services in order to get the job done quickly and efficiently. Good supplier relationships is a key factor to our success as it allows us to maintain our competitive edge.
Get in touch
J&G building services
Rating: 1 out of 5
Extension Builder in Borehamwood
I'm Ridvan Ndrejaj. The owner and operator of J&G building services. With 15 years of experience in building construction industry. Specialist in loft conversion. extensions. Full refurbishment. Landscaping etc.. We are a team that u can put your trust on as. Very friendly and helpful.
Get in touch
Latest review:
Landscaping- 8 Jun 2024
THE WORK NEVER STARTED VERY DISAPPOINTING. HE CANCELLED 5 TIMES TO COME TO ASSESS THE JOB. WE LOST PATIENCE. HAVE NOT FOUND ANOTHER BUILDER.
Arworks
No reviews yet
Extension Builder in Borehamwood
I have had the privilege of working on a 260-year-old Grade Listed building in Islington, London, under the close supervision of conservation inspectors. This project required a careful balance of tradition and innovation — I combined the use of modern machinery externally with traditional, delicate methods internally to ensure the building remained completely scratch-free. My experience has given me a deep respect for heritage projects as well as the skills to deliver high-quality results on modern refurbishments.
Get in touch
crimson kite construction
No reviews yet
Extension Builder in Borehamwood
Fully experienced, impeccable attention to detail. Able provide a design service or complete a project to architect specifications.
Get in touch
Acme Lofts & Extensions Ltd
No reviews yet
Extension Builder in Borehamwood
Acme Lofts & Extensions specialises in the construction of Loft Conversions & Domestic Extensions. Based in Enfield, covering Greater London & Herts, we have over 30yrs experience & expertise in this industry. Our team of skilled tradesmen, qualified technical engineers, professional architects & surveyors will create the highest quality & most desirable living space for your project. All work is guaranteed, insured, vetted & monitored.
Get in touch
Byott and Attfield construction
No reviews yet
Extension Builder in Borehamwood
We are a fully qualified experienced team of all trades, carpentry, bricklaying. We offer the full building package from hanging doors to new builds.
Get in touch
Caush Hysa
No reviews yet
Extension Builder in Borehamwood
Hi my name is Caush , I am 35 years old . I live in London since 2011 and I have been working in construction for almost 15 years. I can do roofing, extension, carpentry, first fix carpenters. I live in North London.
Get in touch
Delcio
No reviews yet
Extension Builder in Borehamwood
From small handyman jobs to building large extensions and houses refurbishment. specialise in all types of work. Portuguese company, just start a new bussiness…the work is done like it was for me!! I am a father of 5 children and I do everything with the best for everyone in mind. Look forward to hearing from you. Thanks
Get in touch
Sc brickwork
No reviews yet
Extension Builder in Borehamwood
Extension landscaping brickwork and all building work undertaking
Get in touch
CM Fixing Limited
Rating: 5 out of 5
Extension Builder in Borehamwood
Façade & Cladding * Façade installation across a wide range of systems and materials * High-performance rainscreen cladding systems * GRC (Glass Reinforced Concrete) façades * Metal panel façades * Terracotta rainscreen systems * Curtain walling systems * Shopfronts and glazed façades * Atriums * Canopies * Louvres and ventilation systems * Privacy screens * External façade paint refurbishment * Mastic and façade sealing works Curtain Walling Installation of curtain walling systems, including: * Schüco * ALUK * Metal Technology * Smart Systems * Jansen * Single and double-glazed curtain walling systems * Structural glazing * Structural silicone glazing Windows & Doors Supply and installation of: * Aluminium windows and doors * Steel windows and doors * PVCu windows and doors * Timber doors * Composite doors * Commercial and residential entrance doors * Glazed doors and screens * Shopfront doors and systems Glass Supply & Installation * Single and double glazing * Replacement glass * Structural glazing * Safety and toughened glass * Laminated glass * Insulating glass units (IGUs) * Glass for windows, doors, curtain walling and shopfronts Internal & Specialist Glazing * Internal glazed partitioning * Internal partitioning systems * Structural glazing * Suspended ceilings * Glazed screens and internal doors * Glass replacement and remedial works Door Automation Supply, installation, servicing and maintenance of automated door systems, including: * Automatic sliding doors * Automatic swing doors * Entrance automation systems * Door operators and controls * Sensors and associated hardware
Get in touch
Latest review:
Windows & Doors (uPVC & Metal)- 16 Sep 2026
Reliable, courteous and transparent. Marian is very efficient and fixed the window on the same day I made the enquiry. Highly recommend.

4.3

Top rated Extension Builders

Our Extension Builders in Borehamwood, are rated 4.3 out of 5 based on 12 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?

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.