insulated conservatories
Turn your conservatory into a room you can use all year round
If your conservatory is freezing in winter, sweltering in summer, or just not as comfortable as it should be, an insulated conservatory could be the answer.


Tired of a conservatory you can’t use?
Most older conservatories were built with poor insulation – thin polycarbonate roofs, basic glazing and draughty frames. That means extremes of temperature, noise, condensation and high heating costs. Sound familiar?
We help homeowners fix these problems with simple, effective upgrades that include a solid insulated roof, improved glazing and energy-efficient doors. If you’re considering a replacement conservatory, this is a smart and cost-effective alternative to starting again.
- Year-round comfort
Fully insulated to reduce heat loss and eliminate temperature extremes - Better energy efficiency
Lower heating bills and a cosier space in winter - Quieter, calmer rooms
Solid roofs help block noise from wind and rain - Stylish transformation
With options that give your space a true room-like feel
Over 200+ happy client reviews
What makes an insulated conservatory different?
An insulated conservatory is designed to offer year-round comfort by dramatically improving thermal performance. We use modern, energy efficient materials to upgrade every part of the structure – including a solid, insulated Supalite roof, high-performance double or triple glazing, warm edge spacer bars, Low E coatings, and draught-free doors and windows. You can also add internal pelmets or insulated wall panels to enhance warmth and soundproofing even further.
These components work together to reduce heat loss, eliminate cold spots and create a more consistent, comfortable temperature throughout the year. It’s the ideal solution if you want your conservatory to feel like a real room – not just an occasional space.

The Supalite solid roof system
We use Supalite’s tried and tested solid conservatory roof system for our insulation upgrades. It’s lightweight, fully ventilated, and building control compliant – with high levels of thermal insulation built in.
Whether you’re creating a cosy insulated conservatory or looking to add value with a more modern conservatory finish, Supalite offers the ideal balance of performance and style.
If your conservatory is underused, uncomfortable or in need of repair, this upgrade could be the key to enjoying it again.
Key features include:
- Lightweight aluminium frame
- Tiled or slate-effect finishes
- Optional vents, pelmets and plastered ceilings
- High-performance insulation
Custom options to suit your conservatory
Whether you’re replacing an old one, upgrading tired windows or starting from scratch, we’ll design an insulated conservatory package to suit your home, your style and your budget.
Styles
We can install a new insulated conservatory roof on almost any style, including Lean To, Edwardian, Victorian, Gable, or completely bespoke designs.
Colours & Finishes
On the outside, you can choose from Supalite’s lightweight tile or slate-effect finishes, available in popular colours like Charcoal, Ember and Pewter – giving you a look that blends beautifully with the rest of your property.
Interior features
Inside, we’ll help you create a space that feels like a real room. Options include smooth plastered vaulted ceilings, integrated spotlights or pendant lighting, roof windows for extra natural light, and insulated internal pelmets for a seamless, cosy finish.
Windows & Doors
If your existing windows or doors are tired or inefficient, we can also upgrade these as part of the same project. Whether it’s replacing old double glazing, adding a fresh set of french doors, or opening up the space with bifold doors, we’ll help you choose the right styles and finishes to complement your new conservatory roof and enhance the whole space. Everything is made to measure and fitted by our in-house team for a perfect result.
We work with all conservatory layouts including Lean To, Edwardian, Victorian, Gable and shaped or bespoke designs.
You can also combine your insulation upgrade with new french doors, bifold doors, or replacement double glazing, all made to measure and fitted by our in-house team. It’s the complete solution for creating a conservatory you’ll actually want to use – every day, every season.
We cover Kent, Surrey, South East London, South Essex, East Sussex and West Sussex, offering free quotes, same day appointments, and helpful guidance from start to finish.

Why choose House of Glass?
When it comes to home improvements, trust matters. At House of Glass, we’ve built our reputation on honest pricing, quality workmanship, and good old-fashioned customer care. As a family-run business, we treat your home like it’s our own – no pushy sales, no inflated prices, just genuine service from start to finish.
- 10-Year Insurance-Backed Guarantee
Your investment is protected for the long term with a comprehensive warranty on all windows and installations. - FENSA Registered
Our installations meet the highest industry standards, giving you complete peace of mind your installation meets building regulations. - Expert In-House Fitters
No subcontractors, just our experienced and trusted team. Our skilled installers ensure a seamless, professional installation. - Family-Run Business
We offer a personal, customer-focused service with honest advice and no pushy sales tactics.
Ready to reclaim your conservatory?
If your conservatory feels more like wasted space than a part of your home, we can help. An insulated conservatory from House of Glass gives you the warmth, comfort and usability you’ve been missing.
Frequently asked questions
Got a question? We’re here to help! Below you’ll find answers to some of the most common queries about our insulated conservatories, installation process, and services. If there’s anything else you’d like to know, please don’t hesitate to get in touch with our friendly team
What is an insulated conservatory?
An insulated conservatory is upgraded with modern materials that help regulate temperature, reduce draughts and improve energy efficiency – making the space usable all year round.
Can I insulate my existing conservatory?
Yes, in most cases we can improve your current structure with better glazing, internal pelmets, insulated ceiling systems and more – all tailored to your space.
Will it look like part of the house?
Definitely. We design insulated conservatories to blend seamlessly with your home, inside and out. The result is a warm, bright room that feels like a true extension.
Is it worth insulating an old conservatory?
Absolutely. Insulation upgrades can transform a rarely used space into a comfortable everyday room. Many customers use theirs as dining rooms, offices or living spaces after the work is done.
Can I upgrade my windows and doors at the same time?
Absolutely. We can replace windows, install french or bifold doors, or fit new energy efficient double glazing to complete the transformation – all fitted by our in-house team.
How quickly can I get a quote?
We offer same-day quotes and appointments for your convenience so contact us anytime to arrange yours.
What warranty do your installations come with?
All our uPVC windows come with a 10-year insurance-backed guarantee for complete peace of mind.
Can you install other matching products?
Definitely! As a leading home improvement company in Kent we can supply everything from windows, doors, uPVC and Aluminium bifolds, sliding doors and conservatory roof replacements. Our aim is always to deliver a seamless, cohesive finish throughout your home.
Are you FENSA registered?
Absolutely. As a FENSA-registered company, we adhere to strict standards for quality and compliance, ensuring your installation meets all necessary regulations.
Do you offer finance?
Yes, we offer flexible finance at 12.9% APR with low deposits to make upgrading your home affordable.
Are your fitters employed by you?
Absolutely! We employ experienced, fully trained, in-house fitters dedicated to quality installations.