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Active Windows - Southampton & Hampshire
Conservatories That Extend
Your Home in Southampton
and Hampshire
Too hot in summer? Too cold in winter? Want more space? Active Windows has successfully completed hundreds of conservatory builds and roof upgrades across Southampton, Portsmouth, Bournemouth and surrounding areas.
Three Ways to Transform
Choose Your Conservatory Roof
Whether you're building from scratch or upgrading an existing structure, Active Windows has a solution for every home and every budget.
Most PopularWarm Roof
This roof truly turns your conservatory into more of an extension. Fully insulated tiled roof system that delivers year-round comfort and adds real property value.
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Glass or Polycarbonate Roof
With a choice of glass or polycarbonate roofs, Active Windows has a roof for everyone. Flood your space with natural light while keeping it weather-tight.
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Budget FriendlyInsulate Existing Roof
Keep your existing cold roof in place and let Active Windows insulate and clad from the inside. Everything else stays intact, less disruption and less cost.
Learn moreThe Case for a Conservatory
Why Add a Conservatory to Your Home?
A conservatory is one of the smartest investments a homeowner can make. Done right, it pays for itself in comfort, light, and resale value. Active Windows makes the process simple, from free design and measuring through to final installation.
Book a free design visitExtra Living Space
Gain a beautiful room you can actually use every day, not just a seasonal overflow space.
Adds Property Value
A quality conservatory is one of the most cost-effective ways to increase your home's market value.
Floods the Home with Light
Natural light pours into your home through glass walls and roof, brightening adjoining rooms too.
Year-Round Comfort
With the right roof choice, your conservatory stays warm in winter and cool in summer, whatever the weather.
JHAI Building Regulation Approved
The Durabase Foundation System
Active Windows uses the Durabase pad foundation system, a faster, cleaner and more cost-effective way to build your conservatory base compared to traditional wet methods.
Durabase System
The smarter choice for your conservatory base
Quicker Build
Built on pad foundations with a steel frame base. Real brick modular walls go up in a matter of hours.
Easier Process
Much of the work can be done yourself, cutting project cost, an important factor for budget-conscious homeowners.
Less Mess, Less Waste
Arrives in kit form. Only concrete pads are needed at strategic points, meaning far less excavation and waste.
Cost Effective
No expensive relocation of manholes or drains. Works around existing structures even in tight spaces.
Traditional Wet Build
The old way, slower and more disruptive
Longer Build Time
A professional must be employed for the duration, which can take weeks and significantly increases costs.
More Complexities
Traditional wet systems are messy, require extra equipment and are dependent on multiple product deliveries.
Longer Building Control Cycle
Durabase products are JHAI single-storey approved so you avoid needless building control delays.
Difficult Sites = Difficult Builds
Uneven or sloping sites cause delays and extra costs with traditional methods. Durabase works around them.
Durabase installation process: from pad foundations to completed base in hours, not weeks.
Our Work
Conservatory Installations
Free, No-Obligation Quote
Get a Free Quote Now
Your postcode may qualify for a £2,500 discount. Active Windows provides free design visits, accurate on-the-spot quotes, and backs every installation with a 10 Year Quality Guarantee plus insurance-backed deposit protection.
10 Year Quality Guarantee
Every conservatory installation backed by a decade of quality assurance.
Peace of Mind with Every Installation
Insurance-backed guarantee and deposit protection on all projects.
We'll match or beat any comparable quote!
Competitive pricing guaranteed. Free design and measuring included.
Local Hampshire Experts
Serving Southampton, Portsmouth, Bournemouth, Guildford and surrounding areas.