Modern innovation means that conservatories are far more than the glasshouses of old, and they can now be used comfortably throughout the year in a huge number of ways.

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White uPVC conservatory
Brick Orangery


Traditionally known for their lantern roofs and brickwork designs, our orangeries offer year-round comfort with a structure that looks awe-inspiringly beautiful.

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White glazed extension interior

Energy-Efficient Glazed and Glass Extensions

When choosing to extend your home, the last thing you want to do is see your energy bills rise when doing so. But, fortunately, our glass and glazed extensions in Surrey possess excellent thermal properties, ensuring they'll stay comfortable all year without causing your energy bills to suddenly shoot up.

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Orangery at Sherborne's Farnborough showroom

Visit Our Conservatory Showsite

The best way to envisage how a conservatory or orangery will look on your home is to head on down to a glazed extension show centre, see one for yourself and get some expert advice when doing so. Click on the link below for details on how you can pay us a visit.

Visit our Showsites
Prefix replacement tiled conservatory roof

Roof Replacements Available Too

In addition to new glazed extensions across Hampshire, we also offer a range of roof replacements. This includes tiled and glass roofs. So, if you're current conservatory or orangery isn't giving you as much as it once did, we can restore it to its former glory.

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White glazed extension interior

Over 30 years’ experience in building glass extensions

Having worked in the glazing industry for more than 30 years, we’ve learnt a thing or two about how to get the best out of our customer’s homes. We’re confident that, no matter what style of London, Hampshire, Surrey, or Berkshire home you live in, our experience and expertise will prove invaluable when it comes to creating your dream home.

No matter if you’re looking to completely overhaul your existing property or you’re operating a budget, we offer impartial, honest advice for how to go about enhancing your home in your desired way. Whether your project is particularly large or very small, Sherborne Windows are here to answer the call!

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Large white uPVC orangery in Surrey.
Sherborne staff opening Hartley Wintney showroom

Specialists in customer care

We’re very proud of the excellent reputation for customer care that we’ve built for ourselves over the years. However, we refuse to rest on our laurels and continue to put our customers first from the initial point of contact we have with them until the last.

We also use a unique Customer Relationship Management (CRM) system to help us effectively manage any of the dealings we have with our clients once the installation work is complete. So, we will continue to look out for you and your home even after we’ve finished working on it.

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How much does a glass extension cost?

The cost of a glass extension will depend on a few factors. The size of the area you would like the glass extension to be on, the larger the extension the more exspensive. The material you want to use for the conservatory and the style choices.

Its always best to speak to an expert to get an accurate quote and overview of all the options.

Are glass extensions cold?

No, glass extensions are not cold. Glass extension made from modern materials are very thermally efficient which means they are cheaper to heat and dont let the cold in. This means you can use your glazed extension all year round.

Do you need planning permission for glass extensions?

Normally you do not need plannig permission for glass extensions. The basic limits you can build to before needing plannig permission is that the extensions should not take up more than hald the area of land around the home. However it is always best to ask a local expert and check your planning rules in the local area just to make sure you are within the limits.

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uPVC black glass roof replacement


Bluesky Assure
Certified Network Installer CIN
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G08 Winner
G11 Conservatory Design and Build WINNER
G16 Winner
G16 finalist
Master Fitter Challenge 2017
G21 Finalist Award