Extension Builders in Alton, South East England

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.4 (11 reviews)

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

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Neobuild Ltd
Rating: 5 out of 5
Extension Builder in Alton, South East England
Hello. Neobuild Ltd, founded by Mateusz - ex Construction Site Manager with 14 years of hands-on experience across all areas of construction. Over the years, he successfully delivered projects ranging from full property refurbishments and extensions to bespoke new builds, always with a focus on quality, reliability, and attention to detail. At Neobuild, we take pride in working closely with clients to understand their vision and bring it to life, whether it’s modernizing an existing space, creating additional living areas, or building a home from the ground up. Our approach combines practical expertise with clear communication, ensuring projects are completed on time, within budget, and to the highest standards. With a strong network of trusted tradespeople and a commitment to craftsmanship, We equipped to manage every stage of the build process—so clients can feel confident their project is in safe hands. If you’re looking for a company who values professionalism, transparency, and quality results, I’d be delighted to help make your plans a reality.
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Latest review:
Extensions- 6 Mar 2026
Was very thorough and supprtive of this project. Ensured minimal disruption and very considerate of making minimal mess . Excellent job in fitting the required loft inspection hatch and very knowledgable of the job at hand.
JPB
Rating: 4.7 out of 5
Extension Builder in Alton, South East England
Business running for 8 years Worked in trade for 10 years + Comprehensive knowledge and modern design Specialists in bathrooms & Kitchens Can do the complete job start to finish with full designs and designer
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Latest review:
Carpentry- 23 Feb 2025
Great work, arrive on time, prepared and ready to work. Would definitely use him again
Mt property services
Rating: 4 out of 5
Extension Builder in Alton, South East England
We are a family run business trading for the last 25 years we pride ourselves on good work great time keeping and being friendly to deal with! We specialise in Plastering Brick work Block work Painting and decorating Ground work Driveways K render Colour render
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Latest review:
Plastering- 12 Jan 2026
Very pleased with the finished ceilings. Brett was easy to correspond with. He arrived promptly and completed the job quickly and exactly as required. Very clean and tidy too
Daly Improvements
Rating: 4 out of 5
Extension Builder in Alton, South East England
Carpentry and building company, run by a small team of professional qualified tradesman. We undertake all aspects of carpentry and building works. From kitchen remodelling, bespoke fitted wardrobes, windows and door replacements. Along with other aspects of carpentry and joinery. We also undertake extensions to loft conversions and garage conversions. We look to ensure every client gets exactly what they want and deserve. With our friendly professional high quality and attention to detail. Please check out our Facebook page Daly improvements
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Latest review:
Carpentry- 16 Sep 2025
The care taken on the Job was impressive. I would use them again and hope to do so in the future.
GA Plumbing
Rating: 5 out of 5
Extension Builder in Alton, South East England
Plumbing and heating maintenance Bathroom installs. Full house refurbishment. Radiator installs. New cylinder and pipe alterations. Kitchen sinks. Outside taps. Leak repair and alterations. Guttering. Underfloor heating. Tiling electrics plastering and carpentry are completed by tradesmen I work with on a regular basis, and have been in their trades for 18 years plus. Thank you for your time, Kind regards, Graham Hardy. G.A Plumbing & Heating.
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Latest review:
Plumbing- 15 Apr 2026
Graham was excellent from start to finish. He was very friendly, communicated clearly throughout, and completed the work to a high standard. He clearly takes pride in his work and made an effort to ensure everything looked great when finished, even improving the layout and moving things to more sensible locations. He also arranged to come and fix the issue very quickly, which we really appreciated. Would happily recommend.
Build It Developments Ltd
Rating: 5 out of 5
Extension Builder in Alton, South East England
We build homes,extend homes, alter homes, convert lofts & refurbish.
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Latest review:
Extensions- 28 Apr 2026
Gary and the team did an excellent job and whenever issues arose were quick to resolve them. Whenever I requested any help with the areas I was covering they were quick to lend a hand and offer advice. Would happily use the team again for any future projects.
J.L. Gray Building and Roofing
No reviews yet
Extension Builder in Alton, South East England
All Roofing requirements covered under one roof 😉. From complete strip and re-roofs and specialist lead work to the smaller jobs like leaking gutters to a small tile repair. My friendly and reliable team are here to help every step of the way with all of your roofing needs.
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Hants and Surrey Garden Rooms Ltd
Rating: 5 out of 5
Extension Builder in Alton, South East England
I’ve been a carpenter/builder for coming up to 40 years now. We are a small team that prides ourselves on our dedication to achieving high end finishes and second to none customer service.
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Latest review:
Carpentry- 28 Nov 2025
Neil (from Hants and Surry Garden Rooms Ltd) was an absolute God send! From start to finish, Neil was super-reliable, with excellent comms and did the most fabulous job. Neil fitted a new door, door frame and sundry other items to split a house into two separate apartments at the stairs level in the hallway -- I had an idea in my mind what I wanted it all to look like when complete, but the results of Neil's hard work surpassed this by a country mile. I will not lose his number! First rate job in every sense. I highly recommend.
HELIX PROPERTY SOLUTIONS LIMITED
Rating: 5 out of 5
Extension Builder in Alton, South East England
At Helix Property Solutions we aim to work on a personal level with all of our customers, delivering unrivalled quality on each and every project. Be it a bespoke storage solution or a loft conversion, our skilled and attentive staff will work with you throughout the entire project, ensuring that all work is completed on time and that customers are delighted with the work carried out. Specialists in loft and garage conversions, all aspects of carpentry, bathrooms kitchens.
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Latest review:
Carpentry- 11 Aug 2020
Excellent work at an excellent price.
Forte Renovations Ltd.
Rating: 5 out of 5
Extension Builder in Alton, South East England
Professional and competent carpenter builder with extensive experience in all aspects of trade specialising in: loft conversion, general and bespoke carpentry work, kitchen fitting, all types of flooring, underfloor heating installation, painting, doors, windows, roofing. From small to extensive projects and complete renovations I focus on quality and client satisfaction. I strive for excellence in all I do. Please contact me for an estimate today.
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Latest review:
Conversions - General- 7 May 2019
Berat and colleague did a great job. Very clean and took all rubbish away. Will hire again for future jobs.
Accurate
Rating: 5 out of 5
Extension Builder in Alton, South East England
All my work is done to the highest standard with the customers interest and vision most important ,we like to keep a close relationship with all customers as this always makes our work easyer for both parties, all projects are fully guaranteed.
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Latest review:
Bricklaying- 8 Jun 2026
Nathan and his son turned up on the agreed day. They let me know that they were going to start a bit later due to collecting materials. So great communication. Gave them a key to the garage, so that they could leave their tools and materials in a safe place overnight. They were very courteous and a joy to have around. Despite the bad weather they completed the upgrade to the front garden wall in the quoted time frame, and on budget. Would highly recommended them.
Cheney Construction
Rating: 5 out of 5
Extension Builder in Alton, South East England
Hi there, I’ve worked in the construction industry for 8 years now doing all sorts of work. I’ve been working for myself and other builders as Cheney Construction Ltd for a few years now. We take pride in our work. We specialise in extensions and landscaping with many other skills also. We also do design work and I have a great team working along side me to make sure you get the results you expect.
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Latest review:
We hired Cheney Construction to build our 2 storey side extension with gable end. Throughout the project so far Ross has communicated well and acted professionally. If we have any questions or problems he is always available to discuss our options and give us advice. He is trustworthy, knowledgeable and very positive - he always has a smile on his face! So far the project has remained on budget and Ross has been mindful of our tight budget throughout. This is very much appreciated. He has a good team of trades people behind him to get the job done in a timely manner. We are currently living in our house whilst the work is being done. Ross and his team have managed to allow this to happen with minimal interruption to our day-to-day routines. We are really pleased with our extension so far and can’t wait to start using it soon! We wouldn’t hesitate to use Ross and his team again in the future for other work and would definitely recommend.
Ashlar Construction
Rating: 4.5 out of 5
Extension Builder in Alton, South East England
We are a building company with over thirty years experience in all aspects of the industry and employ only the best tradespersons to work alongside our team.
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Latest review:
Extensions- 13 Jun 2024
Built front porch to excellent standard. Very flexible in creating exactly what we wanted
Lody Construction LTD
Rating: 4.9 out of 5
Extension Builder in Alton, South East England
We are a family run business that takes projects on from small garden walls, patios , to large extension projects & new builds. Customer care & satisfaction is our number one priority, we always ensure we build a very close relationship with all our clients, trust and communication is key to a successful project and happy clients. We will ensure that all of our work is to a very high standard and all work will comply with planning & building regulations.
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Latest review:
Repointing- 16 Aug 2019
Patrick responded quickly to my job request and was very pleasant to deal with over the phone and in person. He thoroughly assessed what needed to be done and made additional recommendations in a very professional manner. He was very competitive with the quote for the work, and it was completed on time and to a very high standard. Highly recommended.
CG Brickwork
Rating: 5 out of 5
Extension Builder in Alton, South East England
CG brickwork Ltd are a leading bricklaying subcontractor with in the south east of England with a trusted reputation within the construction industry for combining a wide range of experience in various construction methods and producing genuinely high quality work which is, delivered on time and on budget. At CG brickwork we pride ourselves on our commitment to providing professional services at all times, whilst maintaining the highest quality of work.
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Latest review:
Extensions- 6 Oct 2018
This was a difficult job and it was completed really well, we are happy with the result 😊
KCK builders
Rating: 5 out of 5
Extension Builder in Alton, South East England
We are a small, friendly company based in Basingstoke, Hampshire.We provide a vast range of services, everything from bathroom and kitchen refurbishments up to plumbing, electrical work and interior .
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Latest review:
Extensions- 25 Oct 2019
Krystian and his team did an excellent job for us on the new extension new bathroom and new Kitchen . They arrived on the day we agreed and got on with the work right away and the price we paid was the price quoted before the work begun .They were very professional hard working and payed excellent attention to detail.The finish was excellent and he and his team left the house clean and tidy after they were done.we are already recommending Krystian to friends and family that need work doing on their house Thank you Krystian for everything, we will definitely be back for other jobs.

4.4

Top rated Extension Builders

Our Extension Builders in Alton, South East England, are rated 4.4 out of 5 based on 11 reviews from customers like you.

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What types of services are offered by local extension builders in Alton, 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 Alton, 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 Alton, South East England who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Alton, 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 Alton, 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 Alton, South East England extension builders near you on MyBuilder. This allows you to compare what each quote covers and how much your Alton, South East England home extension project is likely to cost.

Find extension builders in Alton, South East England with MyBuilder

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

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

When you start receiving interest, review profiles of local Alton, 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 Alton, South East England extension builders with confidence

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

Alton, 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 Alton, South East England extension builder before hiring?

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

An extension builder in Alton, 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 Alton, 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 Alton, 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 Alton, 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 Alton, 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 Alton, South East England

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

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

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

Yes, most extension builders in Alton, 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.