Extension Builders in Chelmsford

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.4 (9 reviews)

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Some of our top rated extension builders in Chelmsford

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PN PLUMBING&TILING SERVICES LTD
Rating: 4.9 out of 5
Extension Builder in Chelmsford
Qualified Plumber with over 10years of experience in installing, Fitting pipework to kitchen sinks, baths, W.Cs, and central heating boilers Comprehensive installation of bathroom and kitchen systems Installation and maintenance of central heating systems (in both Unblocking drains and tracing the layout of pipework around the property Refurbishment work to bathrooms and kitchens Fitting and repairing taps, rowans and down pipes Installing and repairing domestic kitchen
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Latest review:
Bathroom Fitting- 17 Mar 2025
Gelu is hard working and dependent guy, will not fuss about the job like many do, but will crack on with it. Stayed late to finish it at many times. I am quite happy with the finish and work. shower fit, washbasin, toilet, tiling all done to my satisfaction. After seeing the work I asked him to do more like kitchen cabinets and skirtings.
MWBuildingandlandscaping
No reviews yet
Extension Builder in Chelmsford
I carry out jobs including landscaping, carpentry, extensions, loft conversions, installations of bathrooms/kitchens & plumbing, electrics, all general building work, fencing, no job is too big or small. You can view some different aspects of my work via my photos.
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Retrac Solutions
No reviews yet
Extension Builder in Chelmsford
Retrac Solutions Ltd is a reliable, professional building company offering everything from full project management to individual trades and small repair works. We undertake complete extensions and refurbishments, as well as first fix, second fix, finishing works, and general handyman and maintenance jobs. Whether you need a full scope managed from start to finish or help with a specific part of your project, we’re happy to tailor our service to suit your needs. We pride ourselves on clear communication, high standards of workmanship, and delivering work properly the first time. All jobs are approached with care, attention to detail, and respect for your home. Friendly, organised, and dependable — we aim to make every project straightforward and stress-free.
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Joseph Mansell
No reviews yet
Extension Builder in Chelmsford
Hi all, bricklayer by trade but have experience in all works such and patios, repointing and ground works.
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Tcb carpentry and general building ltd
Rating: 5 out of 5
Extension Builder in Chelmsford
Tcb carpentry and general building. I have been a carpenter for 14 years,we take apon any general building and carpentry needs.we have over 50 years combined knowledge and experience in the building and carpentry industry... From plans to build,1sts fix through to second fix.extension, loft conversions, new build,renovations all aspects undertaken , ”no job to small tcb does it all”
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Latest review:
Extensions- 19 Feb 2020
TCB took on a large extension / remodelling for me, starting in autumn and going through the winter. Despite the bad time of year, the project was completed on time, in budget and with a high-quality finish (plenty of neighbours have commented on the quality, speed and friendliness of the team). Trustworthy, very accommodating when things didn’t go to plan and kept me updated with progress while I was working away. Would want to use again and can highly recommend.
Wayne Dyson (AQL)
No reviews yet
Extension Builder in Chelmsford
we are a landscape company which takes on all types of building work and repairs. we are a team of experienced trade professionals
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Keeble and Barrett ltd
Rating: 5 out of 5
Extension Builder in Chelmsford
Keeble and Barrett are construction and renovation specialists. We carry out all types and sizes of home improvements from small custom built cupboards to full kitchen and bathroom makeovers. We have what i call a great ‘power team’ full of tradesman and professionals, which gives us the ability to tackle all construction works right from the planning stage. We also specialise in new build developments and one off projects. No job too big and certainly no job too small.
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Latest review:
Kitchen Fitting- 11 Jun 2026
Ben was fantastic from start to finish. The job was completed in great time with excellent quality and professionalism.
Classic Building Solutions
Rating: 4.8 out of 5
Extension Builder in Chelmsford
Based in Southend-on-sea, Classic Building Solutions offers competitive rates, excellent response times and all the professional advice you need. We’ve successfully completed projects for thousands of customers. Our team is committed to quality and outstanding customer service. We have 93 years of collective experience and a 100% customer retention rate.
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Latest review:
Bathroom Fitting- 18 Jul 2019
Chris and his team have transformed our dingy bathroom into a lovely bright and clean space, replacing our boiler at the same time. He advised on what was possible to maximise space in our small bathroom and managed the whole process taking the hassle out of it for us. No issue was too big or small and Chris went beyond the call of duty to ensure we were happy. Letting strangers into your house can be worrying but I can’t speak highly enough of how respectful Chris an his team were. We’re so pleased with the final result, we’ve already lined Chris up for another job we need doing. Wouldn’t hesitate in recommending Flo.
P W Builders Essex Ltd
No reviews yet
Extension Builder in Chelmsford
My name is Paul Webber from P W Builders Essex Ltd. We are a local family run building company with over 35 years experience in the domestic and commercial building trade. Projects and services we provide: Groundwork & drainage, brickwork and blockwork, plastering & screeds, rendering, refurbishments, extensions, driveways & block paving, renovations, etc.
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Elite property Services
No reviews yet
Extension Builder in Chelmsford
Elite Property Services Specialising in Loft Conversion, Garage Conversion, General building and Extensions - Dont take our word for it, all our previous Customers have no problem with potential customers viewing our previous/current work on their homes. Covering all of London and Essex -Braintree, Loughton, Chigwell, Epping, Dunmow, Chingford, Ongar, Buckhurst Hill, the list goes on. We undertake all types of home projects. We have over 30 years’ experience within the building sector.
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EcoHome Essex Ltd
No reviews yet
Extension Builder in Chelmsford
Eco Friendly Construction Company. Our Eco Friendly & Carbon Neutral Projects Include New Construction, Tiny Homes, Guest Houses, Garden Rooms, Garden Offices And Also Extensions & Renovations. If it is "OFF THE GRID" Living You Require Or Ensuring Your Project Is As Eco Friendly As Possible By Installing As Many Eco Friendly Credentials Achievable Then We Can Help!
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Verguson Building Services
No reviews yet
Extension Builder in Chelmsford
An experienced business, offering a professional service.
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HoneyBee Construction Ltd
No reviews yet
Extension Builder in Chelmsford
Although new to my builder, were not new to construction, with over 20 years of experience and a team fully of qualified trades behind us. we take on all sizes and aspects of work, from a small porch to a new build. As a company, we aim to help you through the full process, making it as stress free as possible
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Johny the Builder
Rating: 5 out of 5
Extension Builder in Chelmsford
PROFESSIONAL BUILDERS. Johny The Builder Ltd are Building Contractors based in Romford, Essex. We undertake commercial and domestic Refurbishments, Roofing, Loft conversions, Brickwork, Extensions, Basements and new building projects. We make your House a Home
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Latest review:
Extensions- 28 Sep 2018
Johnny was very nice to deal with. When there were problems they were quick to find ways to rectify them. They started at short notice& finished on time which I was very impressive. We got a no. of quotes,Johnny was middle of the range but with a better level of service than others. Johnny was very open about when things might cost more &gave us the option if we wanted to proceed. A few things to note: -this was our 1st experience of any building work &we should have remembered they are builders, not designers -we both work long hours &so most days didn't see the team to get an update or brief them. This meant a few things were missed or miscommunicated - while most of the team were lovely the electrician used was horrible to deal with. He got very cross about requested changes, didn't deliver everything requested &just did silly things like putting in a light switch with 2buttons where there was only one Light or hanging lights incredibly low when we had given measurements of where we wanted them - we got Johnny's team to build some extra storage for us which on the whole was fine but some things weren't centred or for example the wine rack they built was wonky Overall, it was a good experience and we would recommend them but would suggest be home to oversee the work more than once a week (must be true of any building work!) and get your own electrician. Very happy to talk to people and give references-the house looks great now.
Donatas
Rating: 5 out of 5
Extension Builder in Chelmsford
We are a dedicated local building team with years of experience in delivering high-quality construction and renovation projects. Specializing in masonry works, home extensions, kitchen renovations, landscaping and carpentry we pride ourselves on craftsmanship, reliability, and excellent customer service. As a small team we dedicate more of our time to our customers to understand their needs and fulfil them in cost effective and professional manner. - Local expertise with a personal touch - Transparent pricing and clear communication with detailed pricing documents. - Commitment to quality and customer satisfaction
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Latest review:
Bricklaying- 3 Apr 2025
Very satisfied with the work, they carried the work as agreed and cleaned up afterwards. Value for money.
4TK
No reviews yet
Extension Builder in Chelmsford
4TK is an business that specialises in design, project management and construction. We carry out domestic improvements, retail and internal projects and bespoke external building like garden offices, gyms, studios and annex’s.
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4.4

Top rated Extension Builders

Our Extension Builders in Chelmsford, are rated 4.4 out of 5 based on 9 reviews from customers like you.

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

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

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

What are the hourly rates of extension builders in Chelmsford?

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

Find extension builders in Chelmsford with MyBuilder

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

Step 2: Compare different extension builders in Chelmsford

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

Step 3: Hire Chelmsford extension builders with confidence

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

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

What to ask a Chelmsford extension builder before hiring?

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

An extension builder in Chelmsford 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 Chelmsford 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 Chelmsford?

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 Chelmsford 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 Chelmsford 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 Chelmsford

Can an extension builder in Chelmsford help with planning permission?

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

Many Chelmsford 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 Chelmsford help with materials and finishes?

Yes, most extension builders in Chelmsford 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.