At Horsham Builder, we provide a full range of building and home improvement services designed to add space, value and comfort to your property. Whether you’re planning a major transformation or a small upgrade, our experienced local team delivers reliable workmanship and a smooth, stress-free service from start to finish.
Create more room for living, working or entertaining with a well-designed extension.
We build:
Single-storey extensions
Double-storey extensions
Side and rear extensions
Wraparound extensions
Every project is designed to blend seamlessly with your home while improving layout, comfort and long-term value.
Turn unused attic space into a bright, functional new room — ideal for an extra bedroom, office, playroom or studio.
We handle everything from structural work and insulation to stairs, windows and internal finishes, ensuring your new loft feels like an integral part of your home.
Upgrade two of the most important rooms in your home with stylish, long-lasting finishes.
Our team provides:
Full kitchen renovations
Modern bathroom refurbishments
Plumbing, electrics and tiling
Layout adjustments and redesigns
Perfect for refreshing older spaces or creating a more practical layout for everyday use.
Add valuable indoor–outdoor space with a purpose-built garden room, office, gym, workshop or insulated outbuilding.
Durable, energy-efficient and finished to a high standard — ideal for extra living space, hobbies or working from home.
We understand how homes in Horsham are built — from charming period cottages to modern new-builds. This local insight helps us design and deliver building work that fits your property, your needs and the way people live in Horsham. Every project is shaped around your space, your lifestyle and the character of your home.
Your home deserves work completed with accuracy, care and pride. We use proven construction techniques, reliable materials and a detail-driven approach to ensure long-lasting results. From structural work to finishing touches, our craftsmanship is consistent, dependable and built to stand the test of time.
From the first enquiry to the final handover, we keep things clear, honest and stress-free. You’ll always know what’s happening and when, with straightforward communication from a team that values reliability. Our goal is simple: a smooth experience and a result you’ll feel confident in for years to come.
We handle a full range of domestic building services including extensions, loft conversions, kitchen and bathroom refurbishments, garden rooms, structural alterations, and general building repairs.
Yes — we offer free, no-obligation quotations for all projects. We’ll visit your property, discuss your plans, and provide a clear, detailed estimate.
Absolutely. We carry full public liability and employer’s liability insurance, giving you complete peace of mind throughout your project.
Yes. We can guide you through the planning process, advise on local requirements, and work with architects or planning officers where needed.
Either works. We’re happy to collaborate with your architect or recommend trusted local architects we regularly partner with.
Yes. We regularly assist clients with planning applications, building control requirements and structural calculations, ensuring your project meets all regulations.
Yes. We oversee your entire build, coordinating trades, organising materials and ensuring everything is completed safely, efficiently and to a high standard.
We primarily serve Horsham, Southwater, Broadbridge Heath, Roffey, Warnham, Faygate, Mannings Heath, and surrounding West Sussex villages.
We’ll assess your space, discuss design ideas and explain what’s possible.