Extension Builders in Dorchester

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 5 (1 reviews)

Easily find verified Dorchester Extension Builders. Just post your job to get quotes from MyBuilder's Extension Builders in Dorchester.

Select a service

How it works

Post your job for free

Tell us about your job, and we’ll alert suitable tradespeople in your area. It’s simple and free.

Tradespeople respond

Once your job is posted, you’ll get responses from interested tradespeople through the website.

Review profiles and choose

Browse profiles, work history, and feedback, then choose who you wish to share your details with.

Some of our top rated extension builders in Dorchester

146 Results

Sort by:

Adam Billings general builder ltd
Rating: 5 out of 5
Extension Builder in Dorchester
Adam Billings building services. I am a bricklayer by trade and have 20 years experience in the building industry. I am based in Weymouth and I have a great team of tradesman. We offer a wide range of services including new builds, Extensions, loft conversions, Alterations and Renovations, landscaping, patios and drives, chimney repair and rebuilds and a lot more!!! We pride ourselves on an excellent standard
Get in touch
Latest review:
Extensions- 26 Oct 2022
Adam completed our side extension, his workmanship along with his team is second to none. His quote was very accurate and he returned to landscape our garden afterwards. 5star review
Artisan (south) Ltd
Rating: 5 out of 5
Extension Builder in Dorchester
We carry out a full building service to small maintenance work to complete extensions
Get in touch
Latest review:
Extensions- 9 Jan 2024
I would recommend Paul Hamblin of Artisan (south) Ltd without any hesitation. Paul and his team gave first class service from day one until the day of completion. Paul was always easy to reach, quick to respond and reassure. He was also flexible and able to accommodate necessary changes. There was additional work which wasn’t on the original build but Paul’s fantastic team were still able to bring it in on time. Paul’s team, Matt, Daryl and Toby were a pleasure to have around. They were always polite and respectful. Nothing was too much trouble. They left my property clean and tidy. I couldn’t believe how quickly they cleared everything up. They are a credit to their profession. To choose Paul Hamblin of Artisan (south) Ltd is to know that your property is in safe capable hands. Thank you Paul.
real impression renovations
Rating: 5 out of 5
Extension Builder in Dorchester
Carpenter for 14 years on very high class project such as super yachts and large houses.I am also very experienced Tiler from bathrooms to swimming pools. I also have a group of trades men behind me meaning I can do jobs from start to finish if the customer wants. I have also just started a company doing bespoke interior resin floors which is a ultra modern and hygienic product.
Get in touch
Latest review:
Carpentry- 6 Jan 2026
We appointed Max to carry out remedial works on over 200 fire doors across our block of flats, and we were very pleased with the service provided. The team was well organised, professional, and clearly experienced in fire safety compliance. The work was carried out efficiently with minimal disruption to residents, and communication throughout the project was excellent. Any issues identified were explained clearly, and solutions were implemented promptly and to a high standard.
Billings and Vincent LTD
Rating: 5 out of 5
Extension Builder in Dorchester
Serving Dorset and surrounding areas. Extensions, Alterations, Renovations, New builds, Driveways and Patios, Garden walls, Chimneys rebuilds. LABC Partner, Over 25 years experience. Fully insured.
Get in touch
Latest review:
Roofing (Pitched)- 12 Dec 2019
Billings and vincent and team carried out the work to a very high standard, we were kept well informed throughout build process. Would recommend and will be using again in future.
NC Groundworks
Rating: 5 out of 5
Extension Builder in Dorchester
Limited company based in Weymouth covering all aspects of Groundworks and Civil engineering including but not limited too : Footings, Drainage , Patios ,Driveways, Concrete bases , Roads and Infrastructure , Fencing and a whole lot more! We are willing to undertake any size jobs, no job too small . Please feel free to get in touch for a free competitive quote . Thanks Nick N C GROUNDWORKS AND DRAINAGE SOLUTIONS LTD
Get in touch
Latest review:
Demolition- 24 Feb 2026
Nick & team worked hard and got the job done in the three days as quoted. Nick drove across Weymouth and Dorchester to find shingle which matched the existing. Finished job was exactly as I planned it. Good email Comms from Nick leading up to the job always responding the next evening. Quote was competitive.
S T Developments
Rating: 5 out of 5
Extension Builder in Dorchester
We undertake all aspects in the building trade and carry out work to the highest standard. From small domestic jobs to larger projects and site work. With over 10 years experience in the trade industry I pride myself with completing the work to a high standard and making sure my customers are left happy and satisfied with the work carried out
Get in touch
Latest review:
Groundwork & Foundations- 28 May 2021
A fantastic job especially in the weather conditions would hire again
John Bentley Brickwork and Building
No reviews yet
Extension Builder in Dorchester
I am a time served tradesman with 20 years experience in my chosen fields of work. I am a hard working, confident, tidy and conscientious individual who always puts the customer first throughout the job and I always treat the work as if it was on my house not another persons.
Get in touch
Watson Locke Ltd
Rating: 5 out of 5
Extension Builder in Dorchester
Watson Locke is our family name in commercial and residential construction. With over 30 years of hands-on industry experience - and a long legacy in building - our company brings unmatched expertise to every project. We specialise in individual builds, refurbishments, alterations and heritage work with a strong focus on quality craftsmanship, clear communication and efficient project delivery. We are proud to provide a professional, reliable service from start to finish. As an LABC registered partner, we work to simplify the building process and maintain the highest standards. We have an historic portfolio of completed works from small jobs to larger scale projects and we are always happy to discuss your project in detail with no obligation.
Get in touch
Latest review:
Mark was efficient, good value and hard working. Always friendly and helpful
ON THE MARK BUILDING AND ELECTRICAL SERVICES LTD
Rating: 4.4 out of 5
Extension Builder in Dorchester
On The Mark Building and Electrical services is a localcompany with over 20 years experience within the building trade. We cover a range a jobs including: * New Builds * Extensions * Loft Conversions * Kitchens * Bathrooms * Hard Landscaping * General Home Improvements All domestic electrical works undertaken Including full re wires, and all work is certified We pride ourselves on delivering a high standard of work and customer satisfaction.
Get in touch
Latest review:
Bricklaying- 14 Dec 2024
Accepted Quote, never turned up. Didn’t answer phone, didn’t call back. Had to find someone else. Disappointing.
B HusAB
No reviews yet
Extension Builder in Dorchester
I’m an experienced tradesperson with over 25 years in the building industry. I offer reliable, high-quality workmanship, clear communication, and a professional service from start to finish. Customer satisfaction is always my priority.
Get in touch
Laytonscapes building & property renovations
No reviews yet
Extension Builder in Dorchester
Laytonscapes building and property renovations provides reliable, high-quilty building, renovation, repairs and property maintenance services. We pride ourselves on excellent workmanship, honest communication, and completing every project to a high standard, whether its a small repair or full renovation.
Get in touch
WPD Building Services LTD
No reviews yet
Extension Builder in Dorchester
With over 30 years of combined experience in the building industry, we provide a complete range of construction services, from groundwork and structural building through to the finishing touches that bring your project to life. Whether you're planning an extension, renovation, new build, kitchen installation, bathroom refurbishment, or general building work, our skilled team delivers high-quality workmanship at every stage. We work with trusted professionals across all trades, allowing us to manage your project from start to finish with efficiency and attention to detail. Customer satisfaction is at the heart of everything we do. We take pride in our reliability, professionalism, and the quality of our work, ensuring every project is completed to the highest standard and every customer is left happy with the finished result. We cover most of the South of England and have experienced tradespeople available across all aspects of the building industry.
Get in touch
Grant ellis
No reviews yet
Extension Builder in Dorchester
All Aspects of brickwork stone work And alterations
Get in touch
Chris Norcott Building Ltd
No reviews yet
Extension Builder in Dorchester
Trading since 1988, family firm reliable with good references All works undertaken from maintenance to small housing developments.
Get in touch
D McAllister building contractors
Rating: 5 out of 5
Extension Builder in Dorchester
Hi my name is Dominic, Building has been in my family for generations so i have a wide knowledge in most areas of construction. I will take on many aspects of work and complete them to a very high professional standard. From demolition, drainage, groundwork’s and all building whether it’s hard landscaping, conservatories, extensions or a complete new build. Being a home owner I completely understand the customers needs and offer a very efficient, friendly and reliable service.
Get in touch
Latest review:
Bricklaying- 1 May 2019
Excellent work, punctual,effficient polite, very pleased with overall job.
Jenks & Co Carpentry and Building Services
Rating: 5 out of 5
Extension Builder in Dorchester
Quality Craftsmanship, Trusted Experience. At Jenks & Co, we bring over a decade of experience to every project, delivering exceptional carpentry and building services tailored to your needs. Whether you have a small repair or a large-scale renovation, we are equipped to handle it all with precision and care.
Get in touch
Latest review:
Restoration & Refurbishment- 16 May 2020
Ollie is a wonderful carpenter and much more! He has a great number of skilled friends who can help him out, like on our roofing project for the summer house which now looks superb! And the fence he built around our newly sited oil tank is just superb. He’s done a ton of jobs for (Including repointing the slabs on our patio) and all done with precision, dedication, thoughtfulness, and just sheer hard work! I recommend him wholeheartedly!

Top rated Extension Builders

Our Extension Builders in Dorchester, are rated 5 out of 5 based on 1 review from customers like you.

Quality screening

Easily find verified local tradespeople. Just post your job to get quotes from tradespeople near you across the UK.

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

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

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

What are the hourly rates of extension builders in Dorchester?

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

Find extension builders in Dorchester with MyBuilder

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

Step 2: Compare different extension builders in Dorchester

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

Step 3: Hire Dorchester extension builders with confidence

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

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

What to ask a Dorchester extension builder before hiring?

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

An extension builder in Dorchester 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 Dorchester 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 Dorchester?

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 Dorchester 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 Dorchester 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 Dorchester

Can an extension builder in Dorchester help with planning permission?

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

Many Dorchester 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 Dorchester help with materials and finishes?

Yes, most extension builders in Dorchester 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.