The Thermotec Insulated Conservatory Roof System can transform any conservatory into a stylish space you can truly enjoy – all year round.

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All Year Round

Our replacement conservatory roofs are made suitable for weather types all year round, keeping you warm in the winter and cool in the summer. Our conservatory roofs are eight times more efficient than polycarbonate, with u-values of just 0.29. The Thermotec insulated panels used for our conservatory roofs are made to create a consistent environment for comfort in all seasons. Keeping the warmth where it should be, our conservatory roofs create a cosy atmosphere to enhance comfort in those winter months. The versatility of Spire’s Thermotec conservatory roofs is the air regulation that keeps your conservatory cool in the warmer months! You can relax and enjoy the inside space with our conservatory roofs installed. This is a key feature of our conservatory roofs due to the popularity of what we have to offer.

Easy Installation

Our customers are at the core of our business. We prioritise providing exceptional service to our customers, which is why our installation process is completed in less than a day without disturbing your daily routine.

Our Thermotec conservatory roof system is designed to replace the glass or polycarbonate in your current conservatory roof, making the installation process simple and tidy. Made bespoke for maximum efficiency, the lightweight conservatory roof alternative is ideal for those on a time crunch.

With our top-performing conservatory roof, you can have peace of mind knowing that you will be satisfied with the results, and your space will have a fresh new look.

Stylish Appearance

We offer a range of colour options and finishes for conservatory roofs so they can integrate with your home's style perfectly. Thermotec panels are made with colour coordination with the intention of upgrading any existing conservatory. The material has the ability to easily work in conjunction with conservatory roofs that are already installed; as a lightweight addition, it won’t put a strain on any existing structures. In performance and appearance, conservatory roofs will transform your conservatory, which will benefit you in many ways. At Spire Windows, we can offer you an affordable way of upgrading your conservatory and enhancing your style, with complete customisation and personalisation to achieve the perfect new conservatory roof.

Conservatory Roofs

Is your conservatory roof looking tired, outdated, and prone to uncomfortable temperatures? 

Most conservatories suffer from extreme temperature variation and are not suitably designed for all-year-round use, making them redundant spaces a lot of the time. Thermotec is a highly insulated aluminium panel system that is lightweight yet strong. 

The panels used for our solid conservatory roofs are as lightweight as possible, keeping unwanted weight off your conservatory. With no screwing or fixing, this tiled conservatory roof alternative cleverly works in conjunction with your existing roof! 

Thermotec conservatory roof panels are both sleek and stylish while being highly energy efficient, which is a great benefit to any homeowner because you have to pay less for central heating and save money on your bills. 

We guarantee to transform a tired, outdated conservatory into a striking, contemporary room with our insulated conservatory roof that can be used all year round. With a 10-year guarantee and 40-year life expectancy, Thermotec conservatory roof panels are designed for long life; with over 10,000 installations successfully carried out, we are confident our product will serve you well for many years to come. 


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A transformation like this is something all homeowners should receive for their conservatory roof! Keeping a quiet noise level in bad weather conditions, increased temperature control, and additional kerb appeal. Create a relaxing environment by choosing our replacement conservatory roofs here at Spire Windows. 

By using our online quoting engine, you can request a free, no-obligation quote on the service you are interested in. This is a fast, easy approach for our customers to receive a quote on our services following further contact from us. Request a free quote today to benefit from our excellent products and services. 

Conservatory Roof Panel Installation Process

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