Extension Builders in Horsham

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.9 (8 reviews)

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

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 Horsham

687 Results

Sort by:

George branton
Rating: 5 out of 5
Extension Builder in Horsham
- Bricklaying - Extensions - Renovations - Garage conversions - Garden walls - Fencing
Get in touch
Latest review:
Bricklaying- 18 Nov 2022
George and his team were fantastic. Dan's brick laying skills were amazing and George made sure I was happy with everything along the way. Communication was great and the team were very tidy and made sure that we were happy every step of the way. The whole thing was done very quickly and efficiently. Would highly recommend!
DBS Surrey LTD
Rating: 5 out of 5
Extension Builder in Horsham
As a company I pride myself on the level of workmanship, but also how polite, understanding and friendly we are. Whatever the project your thinking about we can work with you to make this come true.
Get in touch
Latest review:
Tiling- 22 Sep 2018
An excellent job, would highly recommend
Edgeway Building Services Limited
Rating: 5 out of 5
Extension Builder in Horsham
We understand that every project we undertake is unique because of the clients’ needs and their budget, which is why we tailor a solution to fit these. We believe our knowledge and expertise together with our trusted and valued tradesmen will cover every aspect of your project and will be successfully delivered on time and in budget. Focused on high quality standards throughout our work we offer the kind of professional and reliable service few other builders can.
Get in touch
Latest review:
I had a single storey kitchen extension built by Jimmy and his team. As well as the construction of the building, the work involved building a new patio, laying new turf, replacing fences and building a side gate. Jimmy's team fitted a new kitchen, laid new flooring and did all the gas and electrical work necessary. The standard of all work was excellent. Everybody involved in the build was extremely hard-working and professional at all times. Communication was excellent - phone calls were either answered or returned promptly and any queries via email or text message were also responded to promptly. All members of the team were reliable and tasks were invariably completed to time. I was kept informed at all times regarding costing of any additional jobs I needed and the original build cost was adhered to.
Sg builds
No reviews yet
Extension Builder in Horsham
Been in the building trade for over twenty five years working for companies in different types of trade, my main passion now is building extensions as I can get involved in every part of the build
Get in touch
Nico
No reviews yet
Extension Builder in Horsham
Hi I’m Nico. I have many year’s experience in the building/maintenance business. I’m a conscientious, hard working and reliable person. I’m happy to show you some of my previous work. I cover… plastering, rendering, tiling, drywall, flooring, painting and decorating, kitchen fitting and many other areas. I also have a team that work alongside me inc an electrician and plumber.
Get in touch
Marcus rackham
No reviews yet
Extension Builder in Horsham
I am a multi trade, very reliable very tidy and won't leave till the job is complete and the customer is happy, I am available from 8am To 8pm Monday to Sunday
Get in touch
Tidey Property Services Ltd
No reviews yet
Extension Builder in Horsham
With over 15 years experience in the building industry we at Tidey Property Services Ltd aim to provide an A* rated service from the very outset to the completion of any job, wether that be a small repair or a major renovation or new build. We undertake all kinds of various repairs and maintenance right through to extensions and new builds.
Get in touch
Artistra Renovations Ltd
Rating: 4.7 out of 5
Extension Builder in Horsham
A renovations company that works for you. Hassle free, responsive and experienced. Contact us for all of your building needs.
Get in touch
Latest review:
Extensions- 17 Aug 2021
Long overdue feedback, the pictures/ decor has changed since below but just wanted to share the feedback. Crew are super, we’re with us through pandemic and worked tirelessly when materials were short and jobs were delayed.. simon is a fair guy, busy but still gives you time to share his creative side. Nothing was too much of a bother. Workmanship is A* and I have huge OCD. I would recommend Simon and team to anyone. And we spent a fair amount of money, everything was reasonable priced with no surprises. With Covid, the whole team were mindful and with a short delay due to restrictions got back on track.. every single one of the team were nice/ hard working and rarely do you find a team that can do the demolition yet have the finesse of the final touches. Sorry for the delay in feedback..
GBS Interiors limited
No reviews yet
Extension Builder in Horsham
With almost 20 years high end fit out and commercial building experience, we have built a great reputation and client base in the construction industry. We will always deliver the highest quality project within the time allocated and will endeavour to fulfil our clients requirements. We can carry out all aspects of carpentry, building, Maintenace and services from a simple diy type project to extensions and new builds commercial or residential.
Get in touch
Smart windows
Rating: 5 out of 5
Extension Builder in Horsham
Smart windows from MKD windows Group are a family run business covering Essex and Surrey. We specialise in UPVC , Wood & Aluminium. Offering quality products at quality prices. Reliable service, no pushy salespeople just a straight forward price! Certass registered with a 10 year insurance backed guarantee.
Get in touch
Latest review:
Windows & Doors (uPVC & Metal)- 13 Mar 2026
Would highly recommend Dean, he removed my window and fitted French doors. Thank you.
IVM HOMES
No reviews yet
Extension Builder in Horsham
Hi, my name is Ivan and I’m the owner of IVM HOMES LTD, a professional building and renovation company based in Crawley. We specialise in extensions, loft conversions, kitchen and bathroom installations, and full house refurbishments. Our team delivers high-quality workmanship, reliability, and attention to detail on every project — from small repairs to full property transformations. We take pride in offering honest communication, fair pricing, and excellent customer satisfaction. If you’re looking for a trusted and experienced team to bring your vision to life, IVM HOMES LTD is here to help
Get in touch
Yudsons Ltd
No reviews yet
Extension Builder in Horsham
Reliable, experienced construction company delivering quality workmanship across all aspects of building, renovation and property improvement. We take pride in completing every project to a high standard, on time and within budget. From small repairs to larger construction projects, we’re committed to providing a professional and dependable service.
Get in touch
The Bauer Group Sussex LTD
Rating: 5 out of 5
Extension Builder in Horsham
Please note we are new to the site but were established in 1999. Please see our gallery to see a nice range of our recent projects. The Bauer Group has been pioneering a revolution in the building industry in Sussex and Surrey. By bringing together only the most highly skilled tradesmen in each core sector, we are able to offer you a one-stop solution to any building project, concept to completion. We pride ourselves on customer satisfaction and our reputation is built on that belief.
Get in touch
Latest review:
Extensions- 9 Apr 2017
Overall a good job. They got a very good match with the new bricks on the porch to our existing house and the porch looks good. The job did take slightly longer to complete than we had been told and there are a few small things that could have had a better finish, but then we haven't asked Bauer to put these right so can't fault them for what they don't know. Overall we would hire again and we are pleased with the result and value for money.
London’s maintenance team Ltd
Rating: 5 out of 5
Extension Builder in Horsham
Established in 2014, we are a team of trustworthy, friendly, and fully trained tradesmen dedicated to handling all your maintenance needs—whether domestic or commercial. No job is too big or too small, and every project receives our full attention and commitment. With nearly a decade of experience, we ensure that your requirements are met in a prompt, efficient, and friendly manner. We pride ourselves on offering competitive rates, so please feel free to reach out for a free, no-obligation quote.
Get in touch
Latest review:
Plumbing- 18 May 2026
Really good, no issues. Flexible on issues that arose on site. The actual issue required far more work but they were able to complete what I needed done for a bathroom to be stripped out. Really good would use again
MJWD Property Maintenance
Rating: 4.8 out of 5
Extension Builder in Horsham
Welcome to M.J.W.D. Property maintenance and solutions- we take great pride in delivering client satisfaction no matter how big or small the job at hand is. Please feel free to browse our online profiles. Thanks for taking the time to read our my builder profile. Best wishes, MJWD Property Maintenance solutions.
Get in touch
Latest review:
Extensions- 24 Nov 2022
The project was much more complicated than my initial estimation, involving lots of customisations and hard work, but Mark and his team managed it quite well. He did a good job even with me being a difficult customer. Pricing was fair and transparent. If you need a builder that knows multiple trades, is not afraid of taking non-standard projects and is quite creative to overcome various challenges and customisations then Mark is your guy.
Pure Contractors Ltd
No reviews yet
Extension Builder in Horsham
We undertake most aspects of building and remodeling of homes and commercial properties from, Surveys, Bathroom, kitchen renovation and installation, Roofing from new to repairs, Plastering and rendering, Brickwork, Painting and decorating and giving advice on design. Plumbing and electric all certified, Aircon installation, Window installation, Landscaping and garden sheds/ offices
Get in touch

3.9

Top rated Extension Builders

Our Extension Builders in Horsham, are rated 3.9 out of 5 based on 8 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 Horsham?

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

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

What are the hourly rates of extension builders in Horsham?

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

Find extension builders in Horsham with MyBuilder

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

Step 2: Compare different extension builders in Horsham

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

Step 3: Hire Horsham extension builders with confidence

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

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

What to ask a Horsham extension builder before hiring?

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

An extension builder in Horsham 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 Horsham 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 Horsham?

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 Horsham 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 Horsham 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 Horsham

Can an extension builder in Horsham help with planning permission?

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

Many Horsham 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 Horsham help with materials and finishes?

Yes, most extension builders in Horsham 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.