Extension Builders in Cranbrook

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3 (4 reviews)

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Some of our top rated extension builders in Cranbrook

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Building Contractors UK
Rating: 5 out of 5
Extension Builder in Cranbrook
Commercial and domestic building company ,that cover all types of works . Exstentions Kitchens Bathrooms Structural steels
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Latest review:
Extensions- 5 May 2020
Amazing !!!!! From start to finish !!! Clear communist at all times , approachable , friendly .. treats you like a client not just a job . Pricing was sensible . Attention to detail was second to none . Finish was just amazing . Was so impressed have already recommended to my clients and a job has been acquired .. I will be having back to do remainder of extension and a few more rooms in house . Could not be happier and nor will you !
Bren Building and Renovations
Rating: 5 out of 5
Extension Builder in Cranbrook
Hi my name is Ben and I am new to my builder. I have been in the building trade for 13 years and I am a qualified level 2 carpenter. I also undertake many other aspects of the building trade such as kitchen and bathroom fitting, tiling, fencing, decking etc. I am a trusting, clean tidy worker and strive to give the best possible service as I can. All jobs are undertaken no matter how big or small.
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Latest review:
Fencing- 20 Apr 2020
Ben turned up when he said he would, was very obliging, took all broken fencing away. Will definitely use him again when necessary
Belderay Construction
No reviews yet
Extension Builder in Cranbrook
Belderay Construction is dedicated to the highest quality of Craftsmanship. We ensure the project is driven forward with enthusiasm, energy and expertise. Please feel free to get in touch for us to have a look at your requirements.
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DEC Renovations
Rating: 3 out of 5
Extension Builder in Cranbrook
Carpenter with 20 years plus experience. Small extensions, shop fitting, all first fix and second fix carpentry. Bespoke kitchens and furniture. Design and install bathrooms. Complete house refurbishment. Garden buildings patio and decking.
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Latest review:
Extensions- 21 Dec 2017
Dishonest from the start. Every excuse in the builders handbook (and new ones). Lazy (they like to work 10-1 and never a full week). Never finished the 2 month project after 6 months - walked away
Tom Cormack
No reviews yet
Extension Builder in Cranbrook
Here at TC building, we are a bricklaying and general building company. We have a high standard of work ethic, and we go the extra mile to keep our clients happy. The services we provide are: • All aspects of brick and block work • General building • Garage conversions • Internal alterations • Landscaping • Fencing Please do not hesitate to contact us if you are looking to improve your home with any of the above services via phone or email.
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TaylorMade Brickwork&Driveways
No reviews yet
Extension Builder in Cranbrook
If you’re looking for a reliable, trustworthy and efficient paving and brickwork company in the south east then look no further. Whether you need help on a small project or a larger job, we want to take the load off your shoulders by providing our specialised services. Just get in touch for a free Estimate or quotation. We always aim to work within budget and timeframe discussed and pride our selfs on being a fair and affordable building service. Taylormade Brickwork&Driveways is a leading and reputable family-run brickwork and paving company serving all of East Sussex/West Sussex, Brighton and Kent. We’ve taken a comprehensive approach to project management, providing our clients with a wide range of services to cover their needs. Get in touch today to learn more about what we can offer you and to receive your free estimate
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Slimm Construction ltd
Rating: 4.2 out of 5
Extension Builder in Cranbrook
Our speciality is our ability to embrace the clients design requirements and to provide a complete professional service and to deliver a first class quality product using traditional and modern methods of construction. I pride my self on getting things done for the best price possible.
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Latest review:
Extensions- 14 Jun 2018
Andy Slimm agreed to build our retirement house. Unfortunately, six months later our dream has turned into a nightmare. For the early part of the build he was helpful and wanted to do a good job. He promised much and we trusted him with everything. When he went over the deadline he started to cut corners and build 'off plan’ in order to save money and try and finish. Suddenly, the day after we had parted with most of the final payment; he took his men off site without warning and abandoned us. We had to carry on renting as the house was unliveable. Three months later we have had to move into our unfinished home which is deemed “unsafe“ due to the mistakes that have been made. Multiple roof leaks, damaging the interior, creating damp and mould problems. Unfinished roof, drainage. Sewage smells in the house due to an unvented toilet system.2 metre deep/2 metre wide hole at the back of the house full of water, unfenced and uncovered. Building control have asked for his structural calculations where he did not build to architect's plans. We have requested many times that he come back, rectify/finish the work and provide the structural engineer's calculations. He refuses, so no other option but to use other builders and to sue Andy for damages. Such a sad and disastrous end to our dream. We have never written a negative review before, however, we feel strongly that we need to warn others as we do not want other clients to go through the traumatic time we have.
Will
No reviews yet
Extension Builder in Cranbrook
I am a professional groundworker and can undertake various projects heavy plant machinery. I can dig trenches, foundation footings, install drainage systems, paving, concrete bases big and small and many other tasks.
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PROSPA CONSTRUCTION LTD
No reviews yet
Extension Builder in Cranbrook
At Prospa Construction Ltd, we pride ourselves on delivering high-quality building and refurbishment projects with professionalism, precision, and care. Based in the South East, we work with clients across the region to bring their visions to life — from commercial refurbishments and fit-outs to bespoke residential builds. With a hands-on approach and a strong focus on communication, we ensure every project runs smoothly from start to finish. Our experienced team is committed to safety, quality workmanship, and completing every job on time and within budget.
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Parker Properties Carpentry and Construction
No reviews yet
Extension Builder in Cranbrook
Welcome to Parker Properties Carpentry and Construction. We have over 10 years’ experience within the industry. Fully Qualified with City & Guilds and NVQ. We cover a wide range of carpentry and construction projects and pride ourselves in our high quality of workmanship.
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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

Top rated Extension Builders

Our Extension Builders in Cranbrook, are rated 3 out of 5 based on 4 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.