Create Extra Space With a Purpose-Built Garden Room
A garden room is one of the most flexible and cost-effective ways to add usable space to your home. Whether you want a home office, gym, hobby room, studio or simply a quiet retreat, our fully insulated garden buildings are built to last and designed around your lifestyle.
At Havant Builder, we create strong, practical and beautifully finished garden rooms that can be used all year round. Every structure is tailored to your property, needs and budget.
We build garden rooms across:
Havant • Waterlooville • Emsworth • Bedhampton • Farlington • Leigh Park • Hayling Island • Rowlands Castle • Cosham
Create More Space With a High-Quality Garden Room
Enjoy a warm, comfortable space in every season.
Our insulated garden rooms include:
High-performance walls, floors & roof insulation
Internal boarding and finishing
Durable exterior cladding options
High-quality doors & windows
Full weatherproofing and ventilation
Perfect for work, relaxation or extra living space.
Create a separate workspace away from household distractions.
Ideal for:
Remote working
Creative studios
Treatment rooms
Music rooms
Digital or craft work
We build professional-grade spaces with the comfort and layout you need.
A private space for fitness and wellbeing.
We can install:
Reinforced flooring
Ventilation
Lighting & electrics
Space for equipment or mats
A practical way to skip travel and exercise at home.
We design garden rooms for almost any purpose, including:
Games rooms
Reading rooms
Teen hangouts
Guest spaces (where suitable)
Entertainment areas
Finished to a high standard, inside and out.
✔ Built for year-round use
Fully insulated and weather-resistant.
✔ High-quality materials
Strong structures designed to last.
✔ Tailored to your needs
Every garden room is made to your size, layout and purpose.
✔ Clear, competitive pricing
No hidden extras — full quotes before we begin.
✔ Clean, tidy and respectful
We minimise disruption and keep work areas tidy.
✔ Local, reliable builder
Trusted across Havant and surrounding areas for strong workmanship.
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