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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Coinscope construction
Rating: 4.4 out of 5
Extension Builder in Chelmsford
Hello I'm Adrian I'm a young, hardworking builder With good skills Always giving affordable prices Get in touch if interested thanks
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Latest review:
Fencing- 5 Jun 2021
Really good work and a very friendly service. Thanks guys!
TerraMax Ground Work
Rating: 5 out of 5
Extension Builder in Chelmsford
TerraMax it’s specialised in all sorts of ground works and we have our own machinery mini digger, dumper and piling machine etc . - standard foundations - piled foundations - block and beam foundations - drainage installation - driveways - patios - landscape
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Latest review:
I was recommended George via a family member that had there drive built. I was very impressed by the work that was done and had made up my mind there and then that George would build My drive. It was built exactly the way I wanted it without any hassle and stress. The work George does is amazing and with great care and very important a clean job. If your looking for great results without any stress then George and his team are for you.
Eugen Istrati T&E Constructions
Rating: 5 out of 5
Extension Builder in Chelmsford
All our works is carried out by our professional, qualified teams and project managed throughout, ensuring that all projects are within budget and meet deadlines. We guarantee complete customer service with only the highest standards of finish. We are tailored to meet all of our client’s requirements.
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Latest review:
Restoration & Refurbishment- 19 Mar 2023
Igor came and did a great job, working around some issues, working around other trades in the house and delivering a great finish. Really easy to talk things through with and gave us the finished bathroom we wanted. Highly recommended.
Pavdeja brother construction ltd
Rating: 5 out of 5
Extension Builder in Chelmsford
We are a team of experienced, enthusiastic and reliable workers with project managers who work with you from start to finish. Our extensive team holds many years of experience in the construction, development and refurbishment field and aim to provide the best results for your property at competitive prices! We offer the following services: Full refurbishment Interior and exterior Bathroom fitting Kitchens Plastering Painting and decorating Extensions Loft conversion Plumbing
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Latest review:
Plastering- 3 Jun 2025
Edar and his team were excellent from start to finish. Very professional and I’d definitely hire them again and recommend their service to others. Thanks Edar and the team.
Rares Cristian Lupu
Rating: 5 out of 5
Extension Builder in Chelmsford
I am a sole trader working for myself for more than 10 years. Family experience over 35 years. I deliver all services from painting, dexorating, bathrooms, kitchens, full house builds, loft conversions, rear / side extensions, landscaping, plastering and plumbing/electric. Reliable and respectful to all my clients!
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Latest review:
had an excellent experience working with Cristian on my bathroom project. From start to finish, his work exceeded all expectations. Cristian was professional, attentive to my needs, and incredibly detail-oriented. His craftsmanship and commitment to quality were evident in every aspect of the project, and he transformed the space beautifully. He kept communication clear and made sure everything was completed on time and according to my vision. I am thrilled with the results and highly recommend his services.
CapitalFix Construction
Rating: 5 out of 5
Extension Builder in Chelmsford
Essex based construction company. Over 22 years of trade experience. No job too big or small! -Extensions -Loft conversions -Brickwork -Driveways -Landscaping -Renovations Simple. Honest. Building.
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Latest review:
Bricklaying- 5 Sep 2023
Unbelievable work, hard working. And helpful every step off the way would highly recommend!!
JS Brickwork
Rating: 5 out of 5
Extension Builder in Chelmsford
We offer a professional and conscientious service where quality and customer satisfaction comes first. We undertake all masonry projects that include brickwork, blockwork, extensions, garden/boundary walls and house building. We also have expertise in carrying out restoration and refurbishment of listed and English Heritage buildings including specialist pointing such as weather struck and lime mortar applications, use of reclaimed bricks, arch work and stonework.
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Latest review:
Extensions- 2 Nov 2018
Building a 2 storey rear extension and hired Jamal to do the Block work. Initial ground storey heavy Hollow block walls for the 3 x 3m extension completed in only 3.5 days by Jamal himself with no extra help. Hardworking young guy. I was nearly bedbound with sciatica and in great pain and he immediately offered to source and buy on my behalf extra blocks required to relieve further stress on me. Very helpful, reasonable and understanding. Explained anything I asked him diligently. Knows his job and I will be calling him back when I have the money to complete the block work for the 2nd storey.
Solis Power Limited
Rating: 5 out of 5
Extension Builder in Chelmsford
As a skilled kitchen and bathroom fitter with 15 years of experience, we bring a wealth of expertise to every project. Our in-depth knowledge of design, layout, and installation ensures exceptional craftsmanship and attention to detail. We excel in managing projects from start to finish, including precise measurements, assembly, and the seamless integration of fixtures, appliances, and finishes. In addition to your fitting expertise, we are a qualified NICEIC electrician, enabling you to handle all electrical installations and connections with full compliance to safety standards and regulations. This comprehensive skill set allows us to provide a seamless, one-stop service, minimizing the need for additional contractors and ensuring every project is completed efficiently and to the highest standard. Known for your reliability, professionalism, and excellent communication with clients, you have built a strong reputation for delivering functional, stylish, and high-quality kitchens and bathrooms tailored to meet your clients’ needs and preferences. Your commitment to perfection transforms spaces into beautiful, practical environments that stand the test of time.
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Latest review:
Kitchen Fitting- 14 Jan 2026
My initial experience with Solis Power Limited was Leo’s immediate response within 30 minutes, visited my property to view my kitchen. He gave a full detailed breakdown of price list that explains each work to be carried out. Suggested materials to use also help with the purchase. Leo and his team are perfect working together, cleaned after themselves each day. They installed new electrical unit, also introduced registered gas man to run gas pipes and also connect the gas hob. Plumbing work was excellent too. Leo also helped with the measurements of splashback and splash splatter guard. The work was carried out within five working days delay was due to shortage of splashback in the store. I highly recommend Leo and his team.
Avion Homes Limited
Rating: 5 out of 5
Extension Builder in Chelmsford
Avion Homes Limited specialises in residential new builds, extensions, refurbishments, and bespoke self-build projects across Essex, West Kent, and surrounding areas. With years of experience managing residential developments for major nationwide housebuilders, we deliver high-quality construction with a strong focus on workmanship, organisation, and reliability from start to finish. Our services include: • Residential New Builds • Property Extensions • House Refurbishments • Self-Build Projects • Construction Management As an FMB member and TrustMark registered company, we are committed to delivering professional, compliant, and well-managed construction projects for homeowners, investors, and developers.
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Gentry construction limited
No reviews yet
Extension Builder in Chelmsford
Our services range from landscaping, extensions, renovations and new builds. Each job is approached by our knowledgeable team with the same dedication to provide a high quality service. Get in touch to start work on your dream for your home.
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Endeavour building & construction
No reviews yet
Extension Builder in Chelmsford
Hi i am a young aspiring building with 5+ years of experience trying to make your dreams come true
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ANM Efficient Solutions
Rating: 4.9 out of 5
Extension Builder in Chelmsford
Hello, Welcome to ANM Efficient Solutions profile– Expert Carpentry & Joinery Services At ANM Efficient Solutions we specialise in high-quality woodworking and carpentry services, offering expert craftsmanship in: ✔ Kitchen Fitting – Precision installations tailored to your space and style. ✔ Door Installation – Interior and exterior doors fitted with accuracy. ✔ Floor Installation – Hardwood, laminate, and engineered flooring for a perfect finish. ✔ Custom Woodworking – Bespoke carpentry solutions for homes and businesses. ✔ Framing & Structural Work – Strong, reliable framing for new builds and renovations. ✔ Roof Shell Construction – Expertly built roof structures for durability and safety. With years of experience, a keen eye for detail, and a commitment to customer satisfaction, we ensure every project is completed to the highest standard. Whether you’re renovating your home, upgrading your business, or building from the ground up, ANM Efficient Solutions is your trusted partner in carpentry. Regards ANM Team
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Latest review:
Carpentry- 23 Jun 2026
Alina, Max and the team have been amazing. Gave a great price, turned up and began working immediately. Quality is fantastic, so much so we have asked them to complete additional works. They arrive on time, work hard all day and left the house and garden in a clean presentable manner. 100% recommend them, multi skilled, polite, and reliable team that deliver quality work at reasonable rates. Will use them again and have already recommended them to friends and family
Affordable Building Company
Rating: 5 out of 5
Extension Builder in Chelmsford
We specialise in both internal and external building works within the domsestic market and offer a compete build sevise from project design all the way to project completion. We have specialist crews for all projects, lofts, extensions and coservatories.
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Latest review:
Extensions- 26 Sep 2012
Andy and his team did a fantastic job. Our neighbours were very uncooperative and restricted noisy working hours quite severely but Andy was very accomodating. He is very easy to talk to and happy to discuss ideas you may have concerning the build. I would definately reccommend him. We are delighted by the extension and will definately use Andy again in the future. Thanks!
A TAYLOR Carpentry
No reviews yet
Extension Builder in Chelmsford
A Taylor Carpentry – Quality Craftsmanship in Dartford, Kent A Taylor Carpentry is a trusted, Dartford-based carpentry and construction company delivering high-quality workmanship across Kent,Essex and the surrounding areas. With a commitment to precision, reliability, and customer satisfaction, we provide a comprehensive range of services tailored to both residential and commercial clients. From expert door fitting, bespoke carpentry installations, and kitchen refurbishments, to larger-scale projects such as loft conversions, home extensions, and general building works, we handle every job with professionalism and attention to detail. Our team brings years of experience across the carpentry and construction industry, ensuring every project is completed to the highest standard—on time and within budget. Whether you’re enhancing your home, expanding your living space, or undertaking a full renovation, A Taylor Carpentry is dedicated to delivering results that combine functionality, durability, and style.
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CPR Building Services
No reviews yet
Extension Builder in Chelmsford
We specialise in construction and property improvements, providing durable, high-standard workmanship with a focus on detail, efficiency, and customer satisfaction
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Kingsmarque construction and maintenance
Rating: 5 out of 5
Extension Builder in Chelmsford
All building work taken on, slating and tiling, house renovations and extensions. We have a team of tilers, renderers, plumbers, painters and myself and business partner who run each job and manage the multiple trades required.
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Latest review:
Extensions- 25 Aug 2020
Really professional and quick to provide quotes. Unfortunately, due to COVID and our circumstances changing, we have had to cancel the job. We would definitely go back to them in the future though.

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.