“We recently had a rear extension completed by Josh and the team at Brixter Construction, and we couldn’t be happier with the result. From start to finish, they were professional, reliable, and easy to deal with.The work was completed to a high standard, finished on time, and stayed within the agreed budget.Jason PrenticeGoogle review · July 2026
The quality of the workmanship is excellent, and the finished extension has exceeded our expectations.Josh kept us informed throughout the project, and his team were friendly and respectful of our home.
We would have no hesitation in recommending Brixter Construction to anyone looking for a trustworthy and skilled building company.”
House extensions in Hassocks & Mid Sussex
More room for the life you want. Bespoke extensions that feel at home from day one.
Built around you.
Delivered with care.
Transform your home with expertly designed and professionally built house extensions from Brixter Construction. Serving homeowners across Mid Sussex, East Sussex and West Sussex, we create bespoke living spaces that give you the extra room you need without the cost and disruption of moving.
- Single-storey and rear house extensions
- Wraparound extensions
- Open-plan kitchen and living spaces
- Planning support, groundworks and final finishes
From our base on Keymer Road in Hassocks we build extensions for homeowners in Burgess Hill, Haywards Heath, Hurstpierpoint, Ditchling, Brighton & Hove, Lewes and the villages in between. Every project starts with a free, no-obligation quote.
Get a free quote for your extensions project
What our clients
say on Google.
Real reviews, quoted word for word. Read all our reviews on Google ↗
“The Brixter team have provided an excellent service from beginning to end. We are very pleased with the work they have carried out.Justin BartholomewGoogle review · July 2026
We were given step by step guidance about how to get planning and they have worked closely with us throughout the project giving us sound advice with a no-nonsense approach.
Josh, Simon and their team are all efficient, hard working, polite and tidy.
Brixter Construction comes highly recommended!”
“I had a great experience with Brixter construction. The team was professional, reliable, and communicated with me throughout the whole project. The quality of their work was amazing and everything was completed on time! They listened to me very well and made sure I was happy with every stage of the process. I would definitely recommend them to anyone looking for trustworthy company”ScarlettGoogle review · April 2026
House Extensions Throughout Sussex
Whether you're planning a single-storey extension, a rear house extension, or a larger wraparound project, our experienced home extension builders manage every stage of the design and build process with exceptional attention to detail.
House Extension Specialists You Can Trust
A well-designed extension should feel like it has always been part of your property. At Brixter Construction, we combine quality craftsmanship with practical design solutions to create beautiful, functional spaces that complement your existing home.
From initial planning through to the final finish, our trusted team delivers a complete extension service tailored to your requirements. We work closely with you throughout the project, ensuring every detail reflects how you want to live both now and in the future.
Our Home Extension Services
Our experienced team delivers a wide range of home extensions for properties of all sizes.
Single-Storey Extensions A single-storey extension is one of the most effective ways to create additional living space. Whether you're extending your kitchen, dining area or family room, we'll design and build an extension that blends seamlessly with your existing property.
Rear House Extensions A rear house extension is perfect for opening up the back of your home and creating a brighter, more practical living area. Many homeowners choose this option to create spacious kitchen diners and modern family rooms.
Wraparound Extensions A wraparound extension combines side and rear extensions to maximise your available space. This solution is ideal if you're looking to completely transform the layout of your home while increasing its long-term value.
Open-Plan Living If you're looking to create a modern open-plan layout, we can incorporate structural alterations and steelwork where required to open up existing rooms and create flexible living spaces that suit contemporary lifestyles.
Design and Build Services
As experienced home extension builders , we provide a complete design and build service from start to finish.
Our team manages every stage of your project, including planning support, groundworks, brickwork, structural works, construction and final finishes. Having one trusted contractor overseeing the entire process helps ensure consistent quality, clear communication and efficient project delivery.
Why Choose Brixter Construction?
When investing in house extensions , choosing the right contractor makes all the difference.
You'll benefit from:
High-quality workmanship delivered by experienced building professionals. Bespoke extension solutions tailored to your home and lifestyle. Reliable project management from one trusted team. Residential construction expertise across projects of all sizes. Professional service with attention to detail throughout. Experienced specialists covering every stage of the project.
Adding Space and Value to Your Property
A professionally built extension gives you more than additional space. It can improve the way you live, enhance the appearance of your property , create better functionality for your home , and increase its long-term value.
Whether you're creating a larger kitchen, adding a new living area, improving family space or adapting your property to changing needs, our bespoke extension solutions are built around your vision.
Areas We Cover
Brixter Construction provides professional house extensions and home extensions throughout Mid Sussex, East Sussex and West Sussex .
If you're looking for reliable home extension builders who deliver high-quality residential building projects with exceptional workmanship, we're ready to help.
If you're considering a house extension , speak to Brixter Construction today.
We'll discuss your ideas, explain your options and provide expert guidance on the best solution for your property. From single-storey and rear house extensions to large wraparound developments, our experienced team delivers bespoke residential building services you can rely on.
Extensions near you
Local guides covering planning, ground conditions and housing in each town:
- House extensions in Burgess Hill
- House extensions in Haywards Heath
- House extensions in Hassocks & Keymer
- House extensions in Lewes
Read our guide
Where we work
We’re based at 29b Keymer Road, Hassocks, and work across Mid Sussex, Brighton & Hove, Lewes and the wider Sussex area, including Hassocks, Burgess Hill, Haywards Heath, Brighton & Hove, Lewes, Cuckfield, Hurstpierpoint & Ditchling, Lindfield, Worthing and East Hoathly.
Related
projects.
You may also
need.
Conversions
Unlock the potential of your property with practical, beautifully finished living spaces.
02Structural works
Expertise where it matters most. Carefully managed steelwork, underpinning and alterations.
03Renovations
Thoughtful transformations, from a single room to a complete property refurbishment.
Tell us about your
extensions project.
Send us a few details and we will get back to you. Quotes are free and without obligation.
Your next chapter
starts with a conversation.
Tell us what you have in mind. Let’s build it together.


