Extension Builders in Cranbrook

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 1 (2 reviews)

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Some of our top rated extension builders in Cranbrook

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Gary Curran Plumbing & heating
Rating: 5 out of 5
Extension Builder in Cranbrook
Gas registered engineer with 22 years experience in domestic plumbing & heating.
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Latest review:
Central Heating- 20 Nov 2019
Gary did and amazing job on my new heating installation, very polite and professional, amazing guy knows what he's doing and above all gave me an amazing deal compared to the companies that were quoting me twice the price and also managed to use the same gas line which I was told I would have to change and got work done. Was amazed to see the job done by him was so clean and quick Thanks gary
M C Russell building contractors
No reviews yet
Extension Builder in Cranbrook
The company is known by Mlbcpropertyservices which is my initials Been the Building trade 35 years mainly working in London for the Theatres, were we do General building and maintenance ,we also do Domestic house refurbishments and have a good list of tradesman that carry out all trades for the local authorities with us .We carryout all home extension and brick work M&E services and plastering bricklaying and decorating
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Eco pro build
Rating: 3.7 out of 5
Extension Builder in Cranbrook
Eco pro build is a family business with me scott in charge of initial survey to ascertain what our client requires and work on feasibility to deliver the project at a viable cost We produce detailed quotations so it’s clear where your money is being spent on the project. We offer a one stop shop for a multitude of construction tasks including technical construction & planning approval drawings. Both of my sons work in the business on the tools and both have a vast skilled set both have the ability to work on their own projects and overcome construction issues as and when is required. We believe we offer great value for money with a professional service from start to finish and our work is guaranteed. We have a workshop and produce bespoke construction parts inc timber frame wall panels, windows, doors, kitchens, stairs, partitions, balcony’s & any thing out of the ordinary. If you need any of the below : *Planning drawings *technical construction building reg drawings *dilapidation surveys * snagging inventory’s * general building * extensions & loft & garage conversions * all carpentry works * all dry lining works inc plastering * rendering * M&E plumbing & electrical works * retail fit out * modular timber frame buildings * ground work inc paving & patios * kitchens, bedrooms & bathrooms * joinery inc stairs doors & windows * all work is guaranteed. Check out our eBay & face book pages
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Latest review:
Extensions- 10 Jun 2026
Scott abandoned the work in the middle of winter after collecting several thousands of £££ in advance without completing or making safe (see attached photos). Due to poor quality of even the seemingly completed works (e.g inappropriate roof pitch/tiles/truss, improperly installed doors/windows & rising damp on internal plaster boards) the work was rejected by building control and I've had to pay another contractor again to remediate. Scott started the work on 15 Sept 2025 but abandoned site at the end of Feb 2026 with doors/windows/radiators only partially installed. Scott had originally committed to a 12 week build for completion before Christmas 2025 but the work dragged till end of Feb 2026 when the work was eventually abandoned. I have decided to take the matter to court after several unsuccessful attempts to get Scott back to finish the work or refund the cost of repairing / completing his work which is about £20k in addition to the roughly £70k I have already paid Scott.
Three Builders Developments Ltd
No reviews yet
Extension Builder in Cranbrook
At Threebuilders Developments ltd, we specialize in comprehensive construction services for residential and commercial properties, offering full-build jobs and expert extensions. With years of experience in the industry, our team is dedicated to delivering high-quality craftsmanship, attention to detail, and on-time project completion. Whether you’re looking to build from the ground up or expand your existing space, we handle everything from design to execution. Our services include site preparation, structural work, electrical and plumbing installations, and finishing touches, ensuring that your vision becomes a reality. We pride ourselves on clear communication, customer satisfaction, and creating spaces that meet both functional and aesthetic needs. Let us help you transform your property into a space you’ll love.
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F l slegg project management and building
No reviews yet
Extension Builder in Cranbrook
Small building company. Chartered builder with 30 years experience. Honours degree in building surveying and nebosh health and safety certificated. Free quotations for all types of buildings works. Newbuilds, extensions, refurbishments. Project management. All operatives fully qualified to city and guilds standard.
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ELLIS CARPENTRY & JOINERY
Rating: 5 out of 5
Extension Builder in Cranbrook
We are a friendly professional company with years of experience. Fully insured and we always make sure the client is happy!
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Latest review:
We found Jack to be extremely skilled and professional. Even when faced with an unexpected drainage issue they were able to find a solution with no problem whatsoever. Extremely reliable which was 100% necessary to be ready in time for the party we had organised even working through rainstorms. I would definitely recommend Jack and his company
Blose Architectural Services
Rating: 4 out of 5
Extension Builder in Cranbrook
Blose Architectural Services is focused on delivering projects on time, on budget and to the highest quality by using innovative design solutions. We work with householders, contractors and other professionals specialising in finding technical solutions that take projects from the drawing board to completion. We excel in preparing and submitting planning and building regulations applications, helping our clients realise their dream projects.
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Latest review:
Architecture- 24 Jun 2025
Absolutely disaster. He did not complete the job after receiving his full payment and could not get hold of him again. I had to deal with the council and application. Scam!
ERW Building Services
Rating: 5 out of 5
Extension Builder in Cranbrook
General builder covering all aspects of exterior and interior works. This includes groundworks from footings, drainage, paving, to conversions and interior maintenance and decoration. With over 20 years of proven experience using quality materials and tradesmen. My aim is to work with my customers to provide a service that fits to their plan and budgets giving sound advice on what would work best to give a lasting finish.
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Latest review:
Conversions - General- 17 Mar 2019
Elliott has to be the best decorator/ builder I have used. On time with works and no lies or excuses!!! After posting my job he call me within 30 minutes to arrange a visit. This was the following day. When Elliott arrived he understood my requirements and saw my ideas and advised when he thought from his experience, would work better. He was very polite and professional. I needed the work done within 2 weeks due to carpet being laid. He completed the works within 7 working days. The works involved, Removing a wall, Removing all woodwork, Boxing out pipes, Plastering, New coving, New skirting, New architrave 2 doors, Building an under stair shelving unit, Moving a socket, sky cables, internet box, Removing radiator, Painting of all new plastered walls ceiling and woodwork to my chosen colours. I was even able to get him to squeeze in some additional works. This was creating shelves in my airing cupboard upstairs and boxing out pipes in my hallway. Elliott’s communication throughout the works was great. Even if he was unable to get round my house he would let me know at his earliest opportunity. Very very tidy during works. I have a 3 year old and Elliott made sure it was left safe every night. The finished works are to a high standard and he even popped back to do a bit off snagging on a Saturday morning. When I say snagging it was a few paint marks, re-laying my old carpet and dropping my keys off. I will be using Elliott in the future.
AC utilities
New on MyBuilder
Extension Builder in Cranbrook
We take on aspects of ground works to water connections new water services duct laying ect
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We Trust Property Services ltd.
New on MyBuilder
Extension Builder in Cranbrook
We are a reliable and professional plumbing company dedicated to providing high quality plumbing, maintenance and repair services for residential and commercial customers. We pride ourselves on delivering honest workmenship, a dependable service and lasting solutions at competitive prices. We cover all aspects of plumbing including blockages, unvented/vented hot water cylinders, heating repairs, leak detection, maintenance and emergency call-outs. At We Trust Plumbing, we understand the importance of keeping your home or business running smoothly, which ids why we offer dependable services you can trust whenever you need us. You Trust, We Deliver.
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JPD PILING & GROUNDWORK LTD
Rating: 4.8 out of 5
Extension Builder in Cranbrook
We are a specialist piling & groundwork company / new build & extensions builder & include Lanscaping with 25 years experience.
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Latest review:
Groundwork & Foundations- 20 Sep 2018
JPD boys came to rescue us when we were almost stuck with our RC foundation on our project, we got a very competitive quote from them and the job was done to a very high standard. Not only did they helped with that, they also gave us a quote for the block work, again this was done without snagging. We will definitely use them over again and recommend them to anyone anytime.
Concept Infrastructure Limited
Rating: 5 out of 5
Extension Builder in Cranbrook
We are a family run business with over 30 years experience in all aspects of the Building Industry and we are all fully qualified tradesemen. We are a flexible and versatile Company that will always spend that extra time in looking after our customers needs. In our experience by completing Projects on time, in budget and to the customer’s requirements, we continue to receive repeated business from our customers. “Basically, From Concept to Completion we've got it covered”
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Latest review:
Extensions- 6 Aug 2020
I’ve lost count of how many times we’ve said how lucky we were that we chose Bryan and his team to build our kitchen extension. The team went above and beyond to ensure as little disruption as possible, as we remained living at home whilst the work took place. During this difficult time, Bryan did everything possible to source the materials required to finish our build before our baby arrived and some how he managed it! His team were really friendly and the family miss having them around. They always tidied up after themselves before leaving too. What we thought was going to be a stressful time was in-fact the opposite. Bryan managed the whole process, kept us updated throughout and made sure the build remained on budget. The level of finish is of the highest standard, better than we could have imagined and I can’t recommend Concept enough. We will undoubtedly be using them again for work in the future. Thanks again to Bryan and his Team.
Levis building services
No reviews yet
Extension Builder in Cranbrook
We are local builders that under take all general building works plastering rendering roofing drive ways extensions and much more... We pride ourselves on our work clean and tidy and most of all reliable And fully insured
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Lee Building Contractors Ltd
No reviews yet
Extension Builder in Cranbrook
Extensions,Loft conversions, renovations, New Builds , refurbishments , Project Management, Steel installations, Roofing work,commercial works,contract projects
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Trojanconstruction
No reviews yet
Extension Builder in Cranbrook
Trojanconstruction is a family run firm building extensions and undertakeing everything from garde ing work 2 full house refurbishments i have a very skilled and experianced team at your service
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Stanley stamper
No reviews yet
Extension Builder in Cranbrook
I have 8 years of extensive experience in building restoration and renovation. From digging footings to tiling the roof, timber framing buildings and internal stud work, oak frame porches and 15th century listed property restoration. Internal second fix work, from hanging doors and making bespoke cupboards. I also have experience in general building, like patio laying and landscaping, experience in painting and decorating and smaller interior works like panelling and flooring. I love any challenge, I have an eye for detail and I would love an opportunity to show my work to anyone interested.
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Top rated Extension Builders

Our Extension Builders in Cranbrook, are rated 1 out of 5 based on 2 reviews from customers like you.

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

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

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

What are the hourly rates of extension builders in Cranbrook?

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

Find extension builders in Cranbrook with MyBuilder

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

Step 2: Compare different extension builders in Cranbrook

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

Step 3: Hire Cranbrook extension builders with confidence

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

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

What to ask a Cranbrook extension builder before hiring?

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

An extension builder in Cranbrook 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 Cranbrook 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 Cranbrook?

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 Cranbrook 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 Cranbrook 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 Cranbrook

Can an extension builder in Cranbrook help with planning permission?

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

Many Cranbrook 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 Cranbrook help with materials and finishes?

Yes, most extension builders in Cranbrook 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.