Extension Builders in Southampton, South East England

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.3 (4 reviews)

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Some of our top rated extension builders in Southampton, South East England

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Bear construction south ltd
Rating: 5 out of 5
Extension Builder in Southampton, South East England
we specialize in reliable and high-quality groundwork services, including all streetworks, dropped kerbs and driveways, drainage solutions, and road surfacing for both domestic and commercial projects. With over 15 years of experience, we proudly serve Hampshire, Dorset, and West Sussex, offering expert services from excavation to foundations. Our friendly and professional team is committed to delivering excellent results, ensuring a smooth and stress-free experience for all our clients, no matter the size or complexity of the project.
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Latest review:
I was recommended Bear Construction by a friend, and it turned out to be an excellent suggestion. From the initial consultation with the architect to the final handover, Bear Construction provided an exceptional experience. Here are the key highlights of working with them: Smooth and Transparent Communication: Each step of the process was clearly explained, and I received daily progress updates, which I found incredibly helpful and reassuring. Respectful and Considerate Team: The work site was kept tidy and well-contained. My neighbours also mentioned how respectful the team was, which was especially important as my property is mid-terrace. Impeccable Quality and Efficiency: The project was completed to an exceptionally high standard, and impressively, it finished three weeks ahead of schedule. I couldn’t be more pleased with the results and would happily recommend Bear Construction to anyone seeking reliable and high-quality building services.
M2 BUILDERS
Rating: 5 out of 5
Extension Builder in Southampton, South East England
Construction and Landscaping company based in Portsmouth, Hampshire. M2 BUILDERS have completed many successful projects around the South Coast. We specialise in Bespoke Building & Landscaping services, Working directly with you binding our knowledge and your vision to create the perfect project. We are fully insured and competent having been in the construction industry for over 20 years. Services we specialise in: - Bricklaying & Repointing - Landscaping - Experts in Porcelain & Natural Stone Patios - Fencing - Artificial & Real Grass Installations - Concrete Foundations - Groundwork’s & Drainage - Complete building services - Structural Steel Conversions - Full renovation's - Remodelling - Extensions Trusted Local builder, Very prompt and professional service. I personally project manage the whole project so you can concentrate on enjoying the process. Free Quotations and advice.
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Latest review:
Landscaping- 25 Feb 2026
Alfie did a super job of paving the back garden. He came up with an idea which was better than my original lay out. Always punctual and kept me informed all the way through. Everything was left clean and tidy , waste material was taken away the same day. I highly recommend him and will be using him for extra work in the near future. Thanks Alfie great job .
Regal construction south Ltd
Rating: 5 out of 5
Extension Builder in Southampton, South East England
THE COMPLETE CONSTRUCTION COMPANY FOR YOUR PROJECT. From new builds to small renovations, we have the experience you need. At Regal Construction South, we are fully equipped & have a wealth of experience in all aspects of home building and renovation. Whether it’s a plastering or rendering project, a small extension or a full new build property, you can rest assured, in confidence, that Regal Construction will complete your project to highest standards.
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Latest review:
Driveways (Paved & Loose)- 20 Mar 2026
What can we say about Regal Construction Ltd.... Bobby and his team of Louis and Ricky have been exceptional throughout. From the first meeting with Bobby we knew he would do a fantastic job. Flexible and helpful planning a new driveway and patio and full of ideas to help us along the journey. Bobby is without doubt the hardest working tradesman we've encountered after multiple renovation jobs over the last 5 years. Skilled, driven and professional. Arrived early each day and left late despite a long commute home. The guys were all brilliant. Friendly, polite and hard working. Clean workers, tidying away daily and great communication. We plan on having an extension next year and without doubt will be requesting this team do the work. We love our new drive and patio. Thank you guys for all your brilliant work. Can't believe we're the first feedback on mybuilder as there should be 100s. I've seen Bobby's other work in photos to help with ideas and it's all great. A++++
Prestige building solutions
No reviews yet
Extension Builder in Southampton, South East England
At Prestige Building Solutions we pride ourselves on high quality and customer satisfaction. We are a fully qualified specialist team that manage everything from start to finish.
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Romsey Brickwork & Paving ltd
No reviews yet
Extension Builder in Southampton, South East England
Been established since 2002 mainly doing patios and brickwork and drives.
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M J Cole Building Services
Rating: 5 out of 5
Extension Builder in Southampton, South East England
I run a small building firm based in Portsmouth specialising in brickwork, including extensions, conservatories, patios and driveways. We are also experienced groundworkers e.g. foundations, drainage, concreting etc. All work considered, large or small.
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Latest review:
Extensions- 9 Oct 2023
Matt and the team had availability at late notice and have produced quality product. The team were professional, punctual and friendly - great communication when it came to constructing our rear extension, particular with regards to the finer details and interfaces. Come well recommended and will use again in the future. Happy to provide photos/site visits if required prior to using MJCole.
S Taylor Builders
Rating: 5 out of 5
Extension Builder in Southampton, South East England
I have been a builder for 40 years , I am a time served bricklayer, who can take on all kinds of work including exstentions from start to finish
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Latest review:
Bricklaying- 12 Sep 2022
I think that Steve Taylor is one of the best builders I have ever had,he arrived when he said he would,his work was absolutely brilliant,he also cleaned up the way I would have,10 out of 10,
Mark Hall General Builder
No reviews yet
Extension Builder in Southampton, South East England
Hello, my name is Mark Hall and I am the owner of Mark Hall General Builder. I have been working in the building trade for over 30 years and have many skills under my belt. The only things I dont do is electrics and certain areas of plumbing. I have built many extentions from the groundworks to the plastering inside (I avoid painting but I have contacts for the areas of work I dont do) I am an all round knowledgeable tradesman! I enjoy landscaping and watching projects come together. My wife Sam is a partner in the business and handles all the paperwork side of things. I am happy to travel throughout hampshire and offer competitive prices. I have public liability insurance and provide free quotations. Please get in touch if you think I can help make your improvement ideas come true. Many thanks Mark Hall
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InsideOutside Building and Landscaping
No reviews yet
Extension Builder in Southampton, South East England
Multi trade. We cover all aspects of building both inside and outside which include but not limited too...Loft conversions, extensions, kitchens, bathrooms, Landscaping. No job too big or small as we adapt our teams to suit. Free no obligation quotations. We also have access to financial advice should you require a secured loan or remortgage to carry out refurbishment.
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Talisman Building Ltd
Rating: 5 out of 5
Extension Builder in Southampton, South East England
We are a reliable and skilled construction and property-improvement company based in the UK, specialising in kitchen fitting, carpentry, and general building works. With hands-on experience across domestic refurbishments and investor projects, we focus on delivering high-quality workmanship with clear communication and honest pricing. Whether it’s a full kitchen refit, structural upgrades, or day-to-day property maintenance, we approach every job with professionalism and attention to detail. We also work closely with landlords and property investors who value consistent results and repeat service. Our goal is simple: to provide a smooth, efficient, and dependable service that leaves every customer confident in the finished work.
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Latest review:
Tiling- 26 Mar 2026
Amazing job, thank you. I found them to be very experienced, friendly and knowledgeable. They left everything clean and tidy. I’m absolutely thrilled with the result. I would 100% recommend this company.
JKS PROJECTS LTD
New on MyBuilder
Extension Builder in Southampton, South East England
Hi my name is Kev, i have been in the building trade for over 40 years l hold City & Guilds in carpentry and joinery. Over the years l have done lots of renovations, loft conversions and new builds no job is to big l’m happy to come and discuss any projects and show you my portfolio.
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BDW Builders ltd
Rating: 4.6 out of 5
Extension Builder in Southampton, South East England
Hi I’m a general builder with 22 years experience I specialise in carpentry but also carry out full bathroom refurbs kitchen refurbs double glazing and extensions
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Latest review:
Extensions- 1 Sep 2025
Ben, Ian and his team did a brilliant job. They came across a few issues this was due to the building plans they had to work from (architectural designer did a disappearing act). This didn’t faze them at all and kept me informed of how they would solve these concerns. They always arrived on time and constantly consulted with me as to how I wanted things to look. The whole extension consisting of a new kitchen and shower/toilet room couldn’t have turned out out any better. They have since completed a few other jobs one being a seating area (completed just from a picture I showed them) with cupboard storage. Again really pleased with the results. Pictures show during and after
Harris building & renovations Ltd
Rating: 5 out of 5
Extension Builder in Southampton, South East England
My name is Dean and I have been in the building trade for well over 20 years I’ve also been on checkatrade for the last decade. I take great pride in my work to make sure that every customer gets a quality service. Harris Renovations was established in 2005, with many years of building experience. Since 2005 we have taken on and completed many projects large and small. All our work is carried out to the highest standard as customer satisfaction is our priority.
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Latest review:
Plastering- 15 Apr 2024
We hired Dean for plastering and tiling our bathroom. Dean came out to review what was required and provided a break down quote quickly. His prices were fair and we appreciated that he was honest in what could and couldn't be done. Throughout the job he was clear on what times and days he could work and was always on time. He cleaned up after himself and never left a mess. The plastering work completed was done quickly and to a high standard, especially impressive when there was a large hole in the bathroom wall from the plaster blowing. We also hired Dean to complete the tiling of metro tiles for us, again the work was completed to a high standard and we are really pleased with the results. The wall (as with all Portsmouth houses) isn't level or straight! We trusted Dean to be left in the house alone and would definitely hire him again.
Ld brickwork
No reviews yet
Extension Builder in Southampton, South East England
Bricklayer of 9 years. I take pride and joy in my work, looking to find more work for myself. I also can do roofing. Please check out my page on Facebook many thanks Louie
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N.A.M construction ltd
Rating: 5 out of 5
Extension Builder in Southampton, South East England
N.A.M construction ltd is a small family run business based in Hampshire, We have over 22 years of experience in the construction and civil engineering industry.
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Latest review:
Extensions- 18 Dec 2021
Louis and team completed a front of house single story extension, installing 2 steal beams, making good and transformed our house. The workmanship was to a very high level and he came up with a few ideas which we added to the design. Louis is incredibly tidy and often goes further than any builder I’ve seen to keep the space safe and clean. We love our new space and cannot wait to put it to good use.
P e littlefield builders
Rating: 5 out of 5
Extension Builder in Southampton, South East England
We are now trading under the name Littlefield developments please check out our website for more information
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Latest review:
Conversions - General- 30 Jan 2026
Great job done by Peter. Highly recommended.

4.3

Top rated Extension Builders

Our Extension Builders in Southampton, South East England, are rated 4.3 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 Southampton, South East England?

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 Southampton, South East England 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 Southampton, South East England who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Southampton, South East England?

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

Find extension builders in Southampton, South East England with MyBuilder

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

Step 2: Compare different extension builders in Southampton, South East England

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

Step 3: Hire Southampton, South East England extension builders with confidence

After gathering all the information and quotes from your chosen home extension builders in Southampton, South East England, 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.

Southampton, South East England extension builders are ready to help. Use MyBuilder today to find the right professional for your home extension.

What to ask a Southampton, South East England extension builder before hiring?

Before hiring an extension builder in Southampton, South East England or extension building company in Southampton, South East England, 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 Southampton, South East England?

An extension builder in Southampton, South East England 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 Southampton, South East England 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 Southampton, South East England?

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 Southampton, South East England 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 Southampton, South East England 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 Southampton, South East England

Can an extension builder in Southampton, South East England help with planning permission?

Yes, many extension builders in Southampton, South East England 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 Southampton, South East England handle everything from design to construction?

Many Southampton, South East England 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 Southampton, South East England help with materials and finishes?

Yes, most extension builders in Southampton, South East England 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.