Extension Builders in Dover

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Some of our top rated extension builders in Dover

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Horizon Construction And Building Services LTD
No reviews yet
Extension Builder in Dover
Horizon Construction & Building Services Ltd is your premier partner for all construction and building needs. With a commitment to quality and excellence, we offer a comprehensive range of services tailored to meet the unique requirements of each project. Our experienced team utilizes the latest techniques and materials to ensure durability and aesthetic appeal, making your vision a reality. Trust Horizon Construction to deliver exceptional results on time and within budget, transforming your space with professionalism and integrity.
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Batchelor building ltd
Rating: 5 out of 5
Extension Builder in Dover
We are a small family run business with 20years experience in the trade, that prioritise a quality service, making sure we have complete customer satisfaction, We cover all aspect of general building and roofing
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Latest review:
Conversions - General- 7 Jan 2023
Really pleased with the work done and a very reasonable price. Great communication and quick to respond to any questions. I would definitely recommend.
True environmental services ltd
No reviews yet
Extension Builder in Dover
We are experienced in all aspects of drainage and construction We install new septic tanks,sewage treatment plants as well as new soakaways and pipework We also build extensions and do all general building work and construction
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Frost Renovation & Electrical
Rating: 5 out of 5
Extension Builder in Dover
Your project is our passion! All Renovation & Electrical carried out in Kent. We will listen to your personal requirements and carry work out to a high & professional standard.
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Latest review:
Dan did an excellent job, he's very knowledgeable and thorough in his work.
Independent installers
Rating: 5 out of 5
Extension Builder in Dover
We are a local, family owned company established in 1990. We take great pride in our excellent reputation and strive continuously to uphold our ethos of providing the highest levels of customer service and quality workmanship. All work is overseen by Martin, from the initial consultation to the completed project. We offer comprehensive Warranties on all Contracts for complete peace of mind. Please contact us for a free consultation if you are considering any type of home improvement.
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Latest review:
Extensions- 4 Feb 2020
We have just finished with our build. To say we are going to miss having the guys round is an understatement, it has been a great experience from beginning to end. The effort and commitment from Martin, Paul, Steph and Arnie has given us the house we wanted. We cannot thank these guys enough and have said to Martin he can use us as a reference house / customer anytime. Thanks guys and will be calling again when we need more work done!!
BM Groundworks (BM Plant Hire Ltd)
Rating: 5 out of 5
Extension Builder in Dover
We are a groundworks and landscaping company based in south east Kent, we have vast experience in all areas we cover. we’ve worked on many projects across Kent, commercial and domestic. Completing work to a very high standard, we strive in having great customer relationships.Delivering excellent service at competitive prices, all our work is fully guaranteed And insured.we look forward to helping you with your project
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Latest review:
Landscaping- 9 Sep 2025
Removed and replaced rotted 8M raised bed planter. Replaced with wooden sleepers. Fast workers. A good job done and very reasonable price.
Sas contract builders limited
No reviews yet
Extension Builder in Dover
Hello my name is Adam and my partners name is Spencer. we are known as SAS contract builders limited. We have been established for 13 years, We are a semi small building company that takes on all types of building work, from garden walls to full builds. our specialties are extensions. we have 35 years experience between us in the building industry. Our main objective is to keep our customers happy which will then lead us to more work.
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HD Design and Build
Rating: 5 out of 5
Extension Builder in Dover
Having trouble choosing which company to call for a quote? Not sure if you can trust your builder? How do you know that the quality of work is going to be good? How do you know that your tradesmen are going to turn up on time?
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Latest review:
Conversions - General- 27 Apr 2019
Craig, Bob and Timmy of HD Design and Build have been an absolute credit to the building trade throughout our project. With a young family still living in the house, their professionalism, punctuality, cleanliness, advice and attention to detail meant they kept disruption and intrusion into the rest of the home to a minimum and we were able to continue life without too much disruption. I have a multitude of photos of the build throughout which show the excellent standard that they worked to every day which can be supplied on request. Craig offered objective advice based on experience throughout and although he clearly always strives for perfection, was never pushy for us to make a decision to use a high end product over something that was more affordable or suitable. Our newly laid herringbone parquet oak floor is the talk of the street and is a testament to their skill and attention to detail. The finished rooms we have now far exceed our expectations of design and quality and that is largely down to Craig's advice and the experience and skill of him and his team. Craig was also instrumental in keeping me calm in many situations when dealing with suppliers and offered sound advice without judgement. I would recommend HD Design & Build to everyone with the belief that they will make your designs come to life and then some!
Zone Group Limited
Rating: 1 out of 5
Extension Builder in Dover
Hello, we are the Zone Group Limited (based in Hawkinge, Kent). We specialise in all aspects of the building trade. Whether it is a builder you require or an electrician, plumber, roofer, plasterer, renderer, painter and decorator, we are here to work with you to assist you in making your dreams turn into reality. We specialise in kitchen and bathroom refurbishments too, so we are happy to view all jobs and provide a very comprehensive and competitive free quote. Our team are friendly, reliable and once we have given a quote, that is the price. The only reason the price may change is if a customer asks for more work to be done that was not on the original quote. We are very transparent and will answer all questions in an honest and timely manner.
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Latest review:
Plastering- 5 Dec 2025
This company made a right mess of the rendering job and also managed to damage the new patio doors. They left without wanting payment. I had to get another company to come in and completely redo the whole job.
Ws bespoke carpentry
Rating: 5 out of 5
Extension Builder in Dover
All building works undertaken. Specialist in extensions.
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Latest review:
Carpentry- 2 Apr 2026
Great service and communication
George Building Services
No reviews yet
Extension Builder in Dover
35 years experience carpenter and joiner, kitchen fitter, first and 2nd fix carpentry
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JJS Brickwork
Rating: 5 out of 5
Extension Builder in Dover
JJS Brickwork has built a reputation for completing good quality work on time and within an agreed budget. We will always work with the customer to attain the finish they require. We are based in Broadstairs, but this doesn’t mean we are restricted to operating in this region. We have spent many years working for house builders, gaining experience on sites in South East England. Our work is always done to a very high standard and we will always work in a professional and respectful manor.
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Latest review:
JJS Brickwork were absolutely brilliant! Their quotation for the work was hugely competitive and when commissioned to carry out the job arrived when they said they would, worked quickly wasting no time, were wholly professional, expert and consultative, and completed the work to a very high standard. These guys were faultless and I highly recommend them. We will be using them again on all future brickworks required on the private housing estate we manage. Brilliant!
A charlton construction ltd
New on MyBuilder
Extension Builder in Dover
Charlton Construction Ltd is an established, Deal-based building company with over 20 years of experience delivering high-quality residential projects across Kent. We specialise in bespoke loft conversions, home extensions, and complete house renovations. Why Choose Us? Experienced Specialists: Over two decades of industry expertise. Comprehensive Service: Managing all aspects of construction work. Client-Focused Approach: Working collaboratively to bring your vision to life. Transparent Pricing: Providing detailed, free, no-obligation quotations. We pride ourselves on exceptional craftsmanship, clear communication, and reliable service to create the perfect addition to your property. Get in touch today for your free quotation. A charlton construction ltd
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B.R.C
Rating: 4.9 out of 5
Extension Builder in Dover
Over 25 years a tradesman with experience from extensive New builds, Extensions and Renovations.
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Latest review:
Extensions- 15 Apr 2021
So delighted with the finished room, Jay had some great ideas and could visualise how it would look, which exceeded my expectations. Jay and Rhys are both highly skilled and very good at what they do, in particular the plastering and finished render looks fantastic. These works have transformed the outside area for me and with the patio laid to a high specification too I can’t wait to start using the garden again. Jay added steps and a low level wall that I hadn’t considered for the path and patio and this was so great to see as I hadn’t anticipated these elements looking so good. Thank you Jay and Rhys, really pleased with how it all came together. (I have also asked for some further works to be done based on my experience so far)
JDMRUK Ltd
No reviews yet
Extension Builder in Dover
At JDM Renovations, we’re passionate about transforming homes and bringing our clients’ visions to life. Based in South East Kent, we specialise in extensions, conversions, full home renovations, brickwork and internal refurbishments. Whether it's a full-scale renovation or a small but important project, our experienced team delivers high-quality work with attention to detail and clear communication throughout. With 20 years of hands-on experience in both residential and commercial construction, we understand how important it is to find tradespeople you can trust. That’s why we take pride not just in our results but in how we get there: with reliability, transparency and respect for your home and timeline. We're happy to offer advice, talk through your ideas and provide no obligation quotes. Let’s build something brilliant together.
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Kent House Conversions
Rating: 5 out of 5
Extension Builder in Dover
Your Local Reliable Builders At Kent Houses Conversion, we pride ourselves on our adaptability and commitment to excellence in every aspect of our service. Explore what we have to offer and how we can contribute to your success in house conversions.
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Latest review:
Conversions - General- 8 May 2026
They did a great job!!!

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

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

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

What are the hourly rates of extension builders in Dover?

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

Find extension builders in Dover with MyBuilder

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

Step 2: Compare different extension builders in Dover

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

Step 3: Hire Dover extension builders with confidence

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

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

What to ask a Dover extension builder before hiring?

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

An extension builder in Dover 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 Dover 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 Dover?

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 Dover 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 Dover 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 Dover

Can an extension builder in Dover help with planning permission?

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

Many Dover 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 Dover help with materials and finishes?

Yes, most extension builders in Dover 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.