Extension Builders in Brentwood

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.4 (14 reviews)

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Some of our top rated extension builders in Brentwood

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yourchoucebuilds
New on MyBuilder
Extension Builder in Brentwood
Extensions Loft conversion Refurbishment bathrooms renovation kitchens Electric&Plumbing 18 years experience all work will be done with guarantee my company name is Lsbainsconstructionltd the one you saw on my profile its old one and unregistered i m trying to change it hope i will change it asap
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K&L Fixing Ltd
No reviews yet
Extension Builder in Brentwood
Hello I’can offer any type of refurbishment Loft conversion,side extension Kitchen,bathroom,laminate,painting
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THT
No reviews yet
Extension Builder in Brentwood
I am a reliable and experienced builder and bricklayer, offering a wide range of services including brickwork, extensions, renovations, garden walls, repointing and general building work. I take pride in delivering high-quality workmanship, working in a clean and professional manner, and completing all jobs on time and to a high standard. Customer satisfaction is very important to me, and I am always happy to offer honest advice, clear communication and competitive prices.
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C1brickwork
No reviews yet
Extension Builder in Brentwood
At C1Brickwork, we take pride in crafting beautiful, durable, and functional outdoor spaces. With 8 years of experience in bricklaying and landscaping, we combine skill, precision, and creativity to bring your vision to life — whether it's a new patio, garden wall, driveway, or a complete landscape makeover. From the solid foundation of expert brickwork to the finishing touches of lush, well-planned gardens, our work is built to last and designed to impress. We're passionate about quality craftsmanship, attention to detail, and customer satisfaction - because your home deserves nothing less. •Custom brickwork, paving & retaining walls •Garden design & landscaping solutions Driveways, pathways & outdoor living areas Reliable, professional, and affordable service Let's turn your outdoor space into something you'll be proud of for years to come. Contact now for a free quote and see how we can bring your ideas to life.
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Tenarts building Limited
Rating: 4.8 out of 5
Extension Builder in Brentwood
We are a multi tasking company that carries from small to big building jobs, tilling, kitchen/bathroom fittings, build-in-wardrobes, landscaping, painting and decoration(airless spray painting, extensions double glazing installations
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Latest review:
Handyman- 27 Sep 2026
We built a shed roof together on Sunday afternoon. He is highly skilled, fully equipped, and experienced in many other trades as well. Highly recommended!
A1 plastering and building services
No reviews yet
Extension Builder in Brentwood
Hi im darren, I have over 25+ years of experience of all plastering and construction work. I can do all types of plastering internal and external as well as offer many more services in the construction field. I work all round Essex but starting to expand out further. I'm reliable, trustworthy, hardworking, clean and tidy.
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Wallon Construction Limited
New on MyBuilder
Extension Builder in Brentwood
We deliver high-quality residential renovations, home extensions, loft conversion and expert roofing solutions with a commitment to craftsmanship, reliability, and structural excellence.
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Paul Geary Plastering and Building
Rating: 5 out of 5
Extension Builder in Brentwood
Hi my name is Paul Geary and I have been a plasterer/ building contractor for over 30 years. I have a wealth of experience in the building trade and have built many extensions and a couple of houses in my time! I also have years of experience within the damp proofing industry with structural waterproofing, cavity drain tanking, cement tanking and timber treatments. I take pride in my work and carry out everything to a very high standard! I look forward to helping you 👍
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Latest review:
Plastering- 8 Jul 2026
Paul was great from start to finish on this job. He carried out the work to a high standard, was easy to communicate with and we’ve booked him in for another job as a result! Would definitely recommend.
RjE property services limited
No reviews yet
Extension Builder in Brentwood
RJE Property Services Ltd, a building and construction company with over 20 years of experience in the industry. Our office is located at unit 22 Curtis Farm High Road, Fobbing, Stanford-le-Hope, Essex SS17 9JJ. Our geographical area encompasses London and the Home Counties. We specialize in refurbishing existing buildings, including extensions, refurbishments, and conversions, as well as new developments ranging from traditional builds to timber frame structures. We can provide comprehensive services for all aspects of your project, including groundworks, block and beam floors, piling foundations, drainage, timber frame construction, plumbing, electrical work, brickwork, roofing, plastering, and painting. We are currently accredited with Gold Constructionline, CSCS, and CHAS, and are a member of the Federation of Master Builders. At RJE Property Services Ltd, we prioritize customer satisfaction and believe that a high percentage of our business comes from repeat customers, referrals, and positive feedback. In accordance with the customer’s requirements, we offer a comprehensive range of services, including supply and fit, supply only, and labour only solutions.
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IMGN Interiors Ltd
No reviews yet
Extension Builder in Brentwood
We focus on drylining jobs, fixering ceilings and walls, any type of ceiling
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Multitown Construction ltd
No reviews yet
Extension Builder in Brentwood
Been building for 63 years came from bid construction in 1999 into domestic work have done many big jobs all my people are multi trade and we do every job from start to finish we never leave till it is complete
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NESIMI CONSTRUCTION LTD
Rating: 5 out of 5
Extension Builder in Brentwood
Nesimi construction ltd With over 18 years of experience, we specialise in bricklaying, driveways, and paving. We carry out all types of work including garden walls, patios, extensions, repairs, and general building. We pride ourselves on high-quality workmanship, reliability, and attention to detail. All jobs are completed to a high standard, on time, and at competitive prices. Friendly, honest, and professional service from start to finish.
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Latest review:
When Mr Nesimi came to undertake a pre-assessment for my front wall, he came across very professional and genuine and very honest about the work needed doing. He even suggested some changes to the work to reduce cost. The quote he gave me for the job was very reasonable and he was able to slot in my job within a week and arrive sharp on time at 8am and got on to the job straight away as I had a busy day at work for me to attend to. I notice that right from the start he was very clean and meticulous with the work and his job was of a very high quality ( compared to a job I had done by another builder 9 months ago). My neighbours also noticed this difference and were praising Mr Nesimi’s work. I would definitely recommend Mr Nesimi for any construction work as I felt he was very professional, reliable and honest and most of all the work was of high quality. I will be certainly calling him for my next job, most likely the driveway resurfacing and the attic conversion within the next year.
TS Traders Ltd
No reviews yet
Extension Builder in Brentwood
We carry out all types of work from bathrooms to extensions. We can manage your dream project from demolition to final completion ready for you to move in.
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Ryan Nicklin
No reviews yet
Extension Builder in Brentwood
All aspects of plastering - skimming - rendering - dry lining - lime rendering/plastering - damp proofing - general building works All jobs undertaken.
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Mark winn building
No reviews yet
Extension Builder in Brentwood
I’ve been in building industry for 30yrs and we can carry out all your building requirements to a high standard. My team very experienced in all aspects building and are trustworthy, polite, and considerate. I have £2,000,000 public lability insurance with professional indemnity.
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Robega Construction
No reviews yet
Extension Builder in Brentwood
We are a local builder who specialise in extensions, new builds, loft conversions, kitchen / bathroom replacements and internal remodelling. We have years of experience and a comprehensive data base of proven, good quality tradesmen. We have the knowledge to develop your ideas giving advice and alternative suggestions based on experience. Offering a complete service from original concept to completion. Our aim is to bring to you a superior service and quality but remain at a competitive price.
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4.4

Top rated Extension Builders

Our Extension Builders in Brentwood, are rated 4.4 out of 5 based on 14 reviews from customers like you.

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

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

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

What are the hourly rates of extension builders in Brentwood?

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

Find extension builders in Brentwood with MyBuilder

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

Step 2: Compare different extension builders in Brentwood

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

Step 3: Hire Brentwood extension builders with confidence

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

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

What to ask a Brentwood extension builder before hiring?

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

An extension builder in Brentwood 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 Brentwood 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 Brentwood?

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 Brentwood 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 Brentwood 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 Brentwood

Can an extension builder in Brentwood help with planning permission?

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

Many Brentwood 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 Brentwood help with materials and finishes?

Yes, most extension builders in Brentwood 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.