Our unique qualities
All trades under one roof
Avoid delays and confusion, making your garage conversion a hassle-free experience from start to finish.
Free expert surveys and quotes
Free home surveys and detailed quotations so you can plan your budget with no surprises or hidden costs.
We specialise in planning permission support
Our team manages the entire application process with local authorities to ensure full regulatory compliance.
Transform your garage into a valuable living space
If you have a garage gathering dust, B H I Building Services can turn it into a handy new room, whether you dream of a home office, gym, bedroom, or playroom. We manage every step, from the initial chat through to the last lick of paint, making sure your conversion looks like it’s always been part of your house.
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Serving Portsmouth, Hampshire, West Sussex, and beyond, we specialise in transforming underused garage space into practical living areas, providing a cost-effective alternative to moving or building an extension. These conversions are ideal for home offices, bedrooms, gyms, or playrooms and are designed to blend seamlessly with your existing property. Our approach allows you to maximise available space without reducing your garden area. You benefit from a fully managed service from concept to completion, with all work built to meet current building regulations and standards.
Everything covered – right down to the last detail
We tackle every job using our own experienced tradespeople, so you never have to juggle different companies. Our team handles structural alterations, insulation upgrades, floor and window installations, as well as heating, electrics, and soundproofing.
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Our services include both single and double garage conversions, as well as work on integral and detached structures. We manage all structural alterations and insulation upgrades, alongside flooring, windows, and door installations. Our team completes all internal plumbing, electrics, plastering, and finishing, while providing heating, ventilation, and soundproofing solutions where required. We also provide full assistance with planning permission and building regulations.
Why a garage conversion makes sense
Converting your garage is often quicker and less disruptive than building an extension. You gain practical living space, ideal for growing families or changing needs, without sacrificing your outdoor area. Plus, a well-done conversion can add real value to your home for the future.
The process begins with an initial consultation to understand your requirements, followed by a site survey and feasibility assessment. We then move into design and layout planning, offering guidance on planning permission and approvals if they are required. Once you receive a detailed quotation and project timeline, construction is completed by our experienced tradespeople. B H I Building Services provides regular updates and project management throughout the build, ending with a final inspection and handover.