Extension Builders in Southampton

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.5 (6 reviews)

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Some of our top rated extension builders in Southampton

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Skyline Southern Limited
Rating: 5 out of 5
Extension Builder in Southampton
We have been in the construction industry over 40 years and have completed projects all over the south of England.
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Latest review:
Extensions- 11 Feb 2022
We had to wait a few months before Rick and Lee could start, as their previous job overran. However, we're so glad we did! From start to finish they were an absolute joy to work with. Nothing was too much trouble for them and they always advised us the best way to go about things. They are a definite credit to the trade. The job is now complete and we're just waiting for the sign off from the Council. We can't recommend Skyline Southern enough. If you find Rick is booked up, that's because he's in high demand, for obvious reasons. My advice is be patient and wait, it will definitely be worth it in the end. Thank you Rick and Lee for a fantastic job!
L c maybery
Rating: 5 out of 5
Extension Builder in Southampton
Now formly known as kestrel property developments Ltd. Im a bricklayer with 10 years experience in mainly domestic building works. I have a level 3 city and guilds qualification in bricklaying earned at fareham college I can undertake work such as extensions, garden walls,patios,repointing, fencing and any brickwork maintenance driveway and renovation Please check my Facebook page kestrel property developments ltd for work that I've completed.
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Latest review:
Extensions- 27 May 2026
Luke and the team were great to get on with and did a great job building a brick porch at the front of my property. We had some unexpected challenges but the team stuck with it to successful completion.
MK&BS Property Solution LTD
No reviews yet
Extension Builder in Southampton
We can undertake all building works small projects or big projects, we have a team of skilled tradesmen, carpenters, tilers, general builders, painters and decorators, we do extensions, refurbishments, garage conversions, garden studio or gym from foundations to roof, plastering, drylining, waste removal, new build properties specialist, we are registered with master builder, and all works are insured
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Frame Fit Building Services
Rating: 5 out of 5
Extension Builder in Southampton
All aspects of building work carried out to the highest of standards with the up most professionalism. Discounted rates applied where possible to support the veteran and NHS communities
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Latest review:
Windows & Doors (uPVC & Metal)- 18 Oct 2024
James completed the job in a timely manner, friendly and professional guy. Will use him again when required
Cripps Construct Ltd
Rating: 5 out of 5
Extension Builder in Southampton
Cripps property services has 20+ years experience in the construction industry and specializes in many different categories from extensions to plumbing, electrics, gas, bathrooms, kitchens, heating, windows and doors, the list goes on. We aim for our customers to deal with one contractor to undertake the complete job and take away any stress or organisation and preparation. One call does it all!
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Latest review:
Michael refurbished my kitchen, bathroom, hall, forecourt and back garden over a period of about two years. He was full of suggestions, but also listened to, acknowledged and acted on my instructions at all times. The work he did was excellent and he remains my go-to when I need work doing. Always polite, always available, always reliable.
Solent Construction Services LTD
No reviews yet
Extension Builder in Southampton
Are you ready to transform your home or investment? We have wide experience form small jobs like new bathroom to building conversions to flats or HMO's. Extensions, lofts and all you need for your property.
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KH paving and driveways
No reviews yet
Extension Builder in Southampton
Hi there, I be been in the construction industry for over 15 years working as a Groundworker. I’ve completed projects ranging from foundations to laying paving for large construction companies. I have in the last 3 years started taking on a range of work for my self including all aspects of groundworks, foundations, drainage, driveways, paving, landscaping, fencing, painting and decorating. I can provide photos of my work and have a great number of recommendations from happy previous clients. I offer free quotes and free advice. Thank you for reading and I look forward to hearing from you. Kind regards. Kh paving and driveways.
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Hillbuilt Services
No reviews yet
Extension Builder in Southampton
Specialising in in all aspects of construction. -Loft conversions -Extensions -Renovations -New builds -Landscaping
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Woodlore Restoration & Build Ltd
Rating: 5 out of 5
Extension Builder in Southampton
At Woodlore Restoration and Build we know how important quality workmanship and good communication are to our customers. We pride ourselves in our reliable expertise, honesty and regular feedback from job start to job completion ensuring that each customer receives excellent service. Our skilled tradesmen undertake a wide range of general build including; extensions, loft & garage conversions, roofing, general refurbishments, property renovations, kitchen & bathroom fitting as well as flooring.
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Latest review:
Carpentry- 11 Aug 2020
Absolutely brilliant, thank you!! Very friendly, communicative and professional. Would definitely recommend!!!
McLeonards Carpentry Ltd
No reviews yet
Extension Builder in Southampton
Hello and thank you for looking at my profile, I am a Qualified Carpenter and Joiner with over 25 years experience in the construction industry capable of producing all types of carpentry including flooring, kitchen Fitting, hanging doors and also First fix, Second fix and Cut Roofing on building work. I also undertake and project manage Extensions, Loft Conversions and New Builds. I'm clean and tidy, polite and punctual, honest and knowledgeable.
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Tiger 8 contractors Ltd
No reviews yet
Extension Builder in Southampton
Discover Tiger 8 : your trusted high-end Construction partner. With 16 years experience, we excel in attention to detail, delivering prompt results, Offering the best prices on quality materials. Are excellent communication Insures your vision is Flawlessly brought to life. Fully insured with public liability up to 10 million, we handle all aspects of construction, leaving site spotless for the next few phase. Choose to tiger 8 to witness your dreams turn into a masterpiece
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ERA HOME BUILDER LIMITED
No reviews yet
Extension Builder in Southampton
Established 10 years ago in Italy and 5 years since we are operating in UK, specialised in domestic renovation buildings with an elevated level of experience in the building trade, ERA HOME BUILDER is a professional, reliable company running in Southampton and the wider area. Ever since opening our doors, we have been committed to our clients' needs and achieving their satisfaction with our work.
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Shield Building Services UK Ltd
No reviews yet
Extension Builder in Southampton
Shield Building Services UK Ltd was established in 2010 by Robert Dilworth with over 30 years in the building trades, We have a dedicated team of fully qualified professionals tradesmen that are experienced in the project we carry out. We undertake all building works and disabled adaptations from planning to completion Our clients include New Forest District Council, Southampton City Council, NRS healthcare, Artemis insurance, private individuals, and architects. We are proud Construction Gold accredited, CHAS Advanced accredited members and have 10 million insurance cover We have an extensive reference list with previous clients if references are required
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ASHCO CONSTRUCTION LTD
No reviews yet
Extension Builder in Southampton
With 16 years of hands on experience in the building trade, we deliver high quality construction services tailored to each client’s needs. Specialising in new builds, extensions, and renovations, we combine proven craftsmanship with modern building practices to create spaces that are built to last. Our broad industry knowledge allows us to manage projects of all sizes, from concept to completion, with attention to detail at every stage. We pride ourselves on clear communication, reliable timelines, and a professional approach that gives clients confidence from the first consultation to the final handover. Whether you’re planning a brand-new home, expanding your existing property, or transforming your space through renovation, we are committed to delivering exceptional results that add long-term value and reflect your vision. Quality, integrity, and experience are at the heart of everything we build.
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A and D Renovations
No reviews yet
Extension Builder in Southampton
A and D Renovations is a partnership business between to very good friends which have bought a various amount of skills to run this business and make it successful and that it is. We cover all aspects of property maintenance repairs and renovations interior and exterior. We are new to My Builder so we do not have any Reviews as of yet but we are on other Job apps and we are very successful in these. I hope we can be oh help look forward to hearing from you
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Brig Construction ltd
No reviews yet
Extension Builder in Southampton
As a proud family-run business serving Southampton and the surrounding areas, we are committed to providing exceptional customer service, reliability, and quality workmanship. Our reputation has been built on trust, attention to detail, and a personal touch that ensures each project is completed to the highest standard. Whether it’s a small repair or a major project, we are here to help, always delivering with the care and expertise that comes from years of hands-on experience.
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4.5

Top rated Extension Builders

Our Extension Builders in Southampton, are rated 4.5 out of 5 based on 6 reviews from customers like you.

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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 Southampton?

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 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 who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Southampton?

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

Find extension builders in Southampton with MyBuilder

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

Step 2: Compare different extension builders in Southampton

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

Step 3: Hire Southampton extension builders with confidence

After gathering all the information and quotes from your chosen home extension builders in Southampton, 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 extension builders are ready to help. Use MyBuilder today to find the right professional for your home extension.

What to ask a Southampton extension builder before hiring?

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

An extension builder in Southampton 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 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?

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 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 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

Can an extension builder in Southampton help with planning permission?

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

Many Southampton 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 help with materials and finishes?

Yes, most extension builders in Southampton 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.