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Discover Guardian™ Warm Roofs

Professionally Designed In-House

Helping people realise their dreams for their homes has been our passion since 1991. One of our resident GuardianTM Warm Roof specialists will visit you in your home to discuss how you would like to use your space before coming away and preparing a quotation. We don’t pressure sell, so relax!

Expertly Installed With Care

The GuardianTM Warm Roof system has taken the home improvement industry by storm, and for good reason. Our installers are all GuardianTM approved, employed directly by us, and work to the highest possible standards. In as little as three days, they will carefully and expertly transform your conservatory into a year-round living space.

Roof Specialists

A Show-Stopping Finish

The GuardianTM Warm Roof is a high-performance solution with a number of internal finishes to choose from. Velux windows, LED lights, and a smooth plaster finish are all available. We’ll even decorate it for you if you like.

Blend Seamlessly With Your Home

A number of external finishes are available, from a convincing slate finish to brick red or a gentle plum. We’re certain we’ll have a lightweight tile to suit your home. We use industry-leading tiles from both Tapco and Metrotile, both of which are incredibly popular.

Expertly Installed By Time-Served Joiners

Whilst the installation of a GuardianTM Warm Roof can take as little as 3 days, there are many components that must come together seamlessly. It is therefore essential that your transformation is completed by an experienced, trained installation team. All of our installers are GuardianTM approved, time-served and directly employed by us. Peace of mind comes as standard with Alexander Windows.

How Much Does A Guardian Warm Roof Cost?

Each Guardian Warm Roof is made-to-measure and professionally installed by one of our GuardianTM approved installation teams. If you’d like a guide price, please share your details below and we’ll be in touch.

Guardian Warm Roof Benefits

Full Building Control

For your peace of mind

Beautiful Finishes

To compliment your home

Energy Efficient

Saving you money

Fast Installation

For your convenience

Free Home Survey

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The GuardianTM Warm Roof

The lightweight, insulated GuardianTM Warm Roof system has been designed and developed over a ten year period with one purpose in mind – to replace the typical glass or polycarbonate roof that is most commonly used in conservatories.

The main focus was on the dynamics and performance, however the overall weight of the replacement roof, which needed to be installed onto the existing conservatory windows, doors and frames was always a big priority. During the research and development period extensive tests were carried out both for compliance and approval to some very rigorous structural and thermal standards. The result is not only a brilliant product but a very practical solution, one which has become one of the biggest home improvement products for a decade.

The roof system is often installed as a replacement for an existing glass or polycarbonate roof but more and more new conservatories are being fitted with a GuardianTM Warm Roof as standard. It’s easy to see why; the home owner is getting a full-blown extension for the price of a conservatory. If there is such a thing as a ‘no-brainer’, then this is it.

A Bit About Us

Alexander Windows is a family-run business that has been established for 30 years. During this time, we have transformed the homes of well over 100,000 happy customers, installing the most well-respected home-improvement names in the country.

Our business is founded on trust, excellence and personal recommendation. We love doing what we do and pride ourselves on exceptional customer service – right from the very beginning of the relationship, when we initially talk to customers about a particular project, through to completion. Our role is to give each and every one of our customers our full attention and to make sure every question is answered and every issue dealt with.

We have an unrivalled knowledge of the products we sell, and we employ our own time-served joiners and installers. Everyone at Alexander Windows is a full-time employee, including our sales people (and by-the-way, they receive a good salary with no commission, so they are never pushy). Then there’s our unique Lifetime Warranty for all Kömmerling frames and a fully transferrable, 10-year guarantee that applies to many of our other market-leading products. We can promise that choosing us for your GuardianTM Warm Roof installation will be hassle-free and with the minimum of fuss.

Help And Support

The result of all the research and development is not only a brilliant product, but a very practical solution to a nationwide problem. Thousands of home owners all over the UK are now enjoying the undeniable benefits, enjoying their new dining room, playroom, or study all year round. The GuardianTM Warm Roof is arguably the biggest revelation to hit the home improvement market for years, and many families across the country are claiming back a space that is so often unused during the cooler months.

As you would expect from suppliers of a leading product, we are able to offer a full support service and assistance with any questions you may have. From building control right through to the full installation procedure, we are here to help provide the answers and information you need.

Thousands of conservatories in the UK have been transformed into home extensions thanks to the Guardian™ Warm Roof, and many new conservatories are being specified with this revelatory system. It really is a win-win situation – enjoy a more comfortable environment and lower heating bills. What are you waiting for?