Extension builders in Havant

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.4 (5 reviews)

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

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 Havant

535 Results

Sort by:

CoursebyCourse Brickwork
Rating: 4.9 out of 5
Extension Builder in Havant
CoursebyCourse Brickwork is a professional bricklaying company based in Portsmouth, covering Hampshire and the surrounding areas. We specialise in high-quality residential brickwork including house extensions, garden walls, structural alterations, brick repairs and general masonry. With extensive experience working on both domestic projects and larger construction sites, we bring strong organisation, skill and workmanship to every job. Our focus is always on producing clean, accurate brickwork while maintaining a tidy and safe working environment. We understand how important it is for homeowners to feel confident in the tradespeople working on their property, which is why we always aim to be reliable, tidy and respectful on every project. Free quotations are available and we are always happy to discuss upcoming projects or offer advice where needed. ✔ Fully insured ✔ Experienced and reliable ✔ Free quotations ✔ Guaranteed
Get in touch
Latest review:
Bricklaying- 28 Oct 2024
Fantastic service, very happy with reaction and works completed.
S Taylor Builders
Rating: 5 out of 5
Extension Builder in Havant
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
Get in touch
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,
1st Garage Conversions
Rating: 5 out of 5
Extension Builder in Havant
Hello, I'm Gordon from 1st Garage Conversions, we are a local firm based in Denmead specialising in garage conversions. With 20 years experience in converting garages we could be just what you`re looking for. I would like to give you a free quote. Thank you
Get in touch
Latest review:
Conversions - General- 15 Dec 2025
Really great job done by 1st Garage Conversions. Very polite friendly team who worked hard in al weathers to get the job done. Would recommend!
Jpe building
Rating: 5 out of 5
Extension Builder in Havant
Jpe building have 17 years experience in the building trade. We Pride ourselves on giving a good service. We Undertake driveways, ground works, Extensions , landscaping and general building. I’m also on Checkatrade. So please get in touch for a free quote
Get in touch
Latest review:
Groundwork & Foundations- 10 Oct 2026
Jason and Chris were superb - they did a great quality job, working to a tight deadline and having to carry everything through the house, they kept everything very tidy. I would highly recommend them.
HOLTRAY PROJECTS LTD
Rating: 5 out of 5
Extension Builder in Havant
Here at Holtrayprojects Ltd we cover all aspects of the building trade & have our 30 years experience within our organisation with all the correct credentials.
Get in touch
Latest review:
Bathroom Fitting- 28 Sep 2025
Justin and his guys were so professional and gave a excellent service. The work is of the highest standard and more than we could have hoped for. Justin was an absolute pleasure to deal with and so helpful. Will certainly use again and recommend highly.
OP Construction
Rating: 4.9 out of 5
Extension Builder in Havant
OP Construction Ltd is a small business based in Wateelooville providing a professional building, alteration and general property maintenance service. Our personalised and friendly service is specifically tailored for all clients to achieve their building needs.
Get in touch
Latest review:
Extensions- 13 Feb 2019
OP Construction have recently completed our conservatory replacement. The job was to replace our old conservatory which was too cold in the winter, and too hot in the summer, with single story extension to the house with brick work and a tiled roof. We are thrilled with the final result! Olly and the team were all very professional in their approach. They kept the area clean and tidy, and kept us up to date continuously throughout the build process. The quote was broken down for us, so we could swap some items in or out which we found very useful – but more importantly the job came in on budget and in the time frame agreed. Overall I would not hesitate to recommend OP construction, and will certainly use them again in the future. Great job!
Dan
Rating: 5 out of 5
Extension Builder in Havant
Brick and blockwork Groundworks Patios Driveways
Get in touch
Latest review:
Bricklaying- 21 Jun 2022
Dan and his mates did the job very well ... fast and reasonably priced. I can recommend him to everyone. Thanks Dan
M J Cole Building Services
Rating: 5 out of 5
Extension Builder in Havant
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.
Get in touch
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.
Property Renovations
Rating: 5 out of 5
Extension Builder in Havant
We are capable of doing interior and exterior jobs at your property. No project is too big for us. Please contact us for a free advise. We are covered by liability insurance. Free, non obligatory quote on your request.
Get in touch
Latest review:
Plumbing- 21 Nov 2022
Dawid and Mattusz were able to pop round to see the job shortly after I posted it. They gave me a good price and I gave them the go ahead to do the job as it was urgent. They were really nice, shoes off at the door (unprompted) and solved the problem. They cleaned up afterwards and were really professional throughout. I will be saving their number and using again!
J&H brickwork
Rating: 5 out of 5
Extension Builder in Havant
J&H brickwork 🧱 We undergo all aspects of Brickwork. We specialise in Brickwork and Patios. J&H produce Reliable Friendly Service. We promise to meet our Exceptionally high Standards. “No job Too Big Or Small”
Get in touch
Latest review:
Bricklaying- 24 Jul 2025
Harvey was very responsive to the requirements of the job and to short notice changes incurred by other works being delayed. His team were brilliant and had the job set-up and executed with minimum fuss or mess. They turned up when they said they would and got it all done really quickly. Really pleased with the results and would highly recommend Harvey and his team.
First4BrickWork
Rating: 5 out of 5
Extension Builder in Havant
We are self employed bricklayer's with over 30 years experience in the building industry, we have decided to venture out on are own to build up a reputable and reliable bricklaying and general building company we have experience in all aspects of bricklaying and general building from houses to extension, porches, garden wall and lots more .
Get in touch
Latest review:
Bricklaying- 9 Feb 2019
Dave and his team done a excellent job on my raised planter. I am very pleased from the quote to finish. The job has been carried out to the highest of standards and stayed within budget. Would highly recommended this guy.
Harris building & renovations Ltd
Rating: 5 out of 5
Extension Builder in Havant
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.
Get in touch
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.
HWG Building
Rating: 5 out of 5
Extension Builder in Havant
HWG Building are a team of highly skilled Portsmouth-based builders. We offer a complete building service for any project, from large house extensions to small scale domestic refurbishments. We specialise in the following: house renovations, extensions, conversions, kitchens, bathrooms, ground works, gardens and decorating. We work closely with all of our clients to provide a service that suits each unique budget and time frame – regardless of the size of the job.
Get in touch
Latest review:
I had major work completed on the front of my house with new steels being needed. Harry and his team were efficient and kept things as clean as they could given the nature of the job. They were polite and kept me informed of each stage and also spoke to my immediate neighbours. The job was finished on time and a professional clean was completed at the end. I would recommend HWG building services and I will be using them again in the near future
MCD Building Ltd
Rating: 5 out of 5
Extension Builder in Havant
We are a family business which specialises in extensions, refurbishments, driveways, landscaping and patios
Get in touch
Latest review:
Repairing cracks in ceilings and walls and patch replastering. Mark did an excellent job, he's a great guy, friendly and professional and very respectfull of your property and made sure I was happy with what he had done. Nothing was too much bother. I would definitely get Mark to do any more jobs that might come up. Very satisifed customer.
M2 BUILDERS
Rating: 5 out of 5
Extension Builder in Havant
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.
Get in touch
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 .
Garden Space Projetcs limited
Rating: 5 out of 5
Extension Builder in Havant
Garden Space Projects are a business located on the South Coast that specialises in constructing Light Gauge Steel Garden Rooms. Our building method is designed to speed up construction, reduce costs, and increase durability. Unlike traditional building methods, our approach allows us to build any garden room design you require without the usual hassle. We also instal Composite Cladding; Fencing and Decking.
Get in touch
Latest review:
Composite Decking. Absolutely amazing work, George was polite and friendly, answered all my questions with ease and went the extra mile ensuring I was happy,keeping me updated at all stages. Great service all round. Highly recommend. Thanks you George great assett to the company.

4.4

Top rated Extension Builders

Our Extension Builders in Havant, are rated 4.4 out of 5 based on 5 reviews 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 Havant?

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

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

What are the hourly rates of extension builders in Havant?

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

Find extension builders in Havant with MyBuilder

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

Step 2: Compare different extension builders in Havant

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

Step 3: Hire Havant extension builders with confidence

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

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

What to ask a Havant extension builder before hiring?

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

An extension builder in Havant 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 Havant 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 Havant?

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 Havant 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 Havant 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 Havant

Can an extension builder in Havant help with planning permission?

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

Many Havant 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 Havant help with materials and finishes?

Yes, most extension builders in Havant 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.