Double glazed casement windows

What is double glazing and why should you choose it for your home? We’ve collected all the questions we ever get about this type of glazing and answered them for you.

What is double glazing?

Put simply, double glazing is two panes of glass separated by a gas-filled space. This space between the glass acts as a barrier between the cold air outside and your home. Draughts become a thing of the past and your home will be more comfortable all year round. The extra glass pane also acts as another layer of defence for your home against intrusion.

How does double glazing improve my home’s energy efficiency?

According to the Energy Saving Trust, in a standard semi-detached home, upgrading from single glazing to c-rated double glazing could save you at least £70 a year. This goes up to £110 for A+ rated windows in a detached home. All our windows can achieve an A energy rating to offer your home the highest levels of thermal efficiency.

Does double glazing help with sound insulation?

Double glazed windows will vastly reduce unwanted noise in your home. If you live near a busy road or near an airport, then double glazing will make your home more peaceful.

Is double glazing affordable?

Oak effect flush sash window installation for traditional style property

Every home is different and it does depend on the materials and the styles you choose but double glazing is affordable for the majority of homes. We can help you find the windows perfect for your home and budget.

What materials and styles can I have with double glazing?

Double glazing can be installed with any window style and material. We offer uPVC, aluminium and timber effect frames to give you the best choice in terms of efficiency and aesthetics. Choose from the classic casement style, traditional sliding sash, innovative tilt and turn or bespoke shaped windows.

Should double glazing get condensation?

Double glazing will significantly reduce the amount of condensation that your home suffers from. Condensation build up on the outside pane of your windows demonstrates how well they are working. The heat from your home isn’t escaping so the outside pane is cooler than the inside pane. Condensation on the inside pane could be caused by moisture around your home such as from showering or creating steam when cooking. Improving ventilation will help solve this. The only time condensation is an issue with double glazing is if it’s in-between the glass. This could mean the seals have failed and you will need to get them replaced.

Do I need planning permission to have double glazing installed?

As long as you don’t live in a period property or in a conservation area, you shouldn’t need planning permission to upgrade your windows to double glazing. If you are unsure, contact your local authority. If any planning permission for any of your home improvements is required, we will take care of it all for you.

White uPVC heritage style windows- double glazing

Can double glazing add value to my home?

Double glazing as opposed to single glazing will instantly improve the value of your home. It won’t be draughty and will have much better energy efficiency. Simply by having more modern windows, your home’s kerb appeal will be improved. Choose from our range of beautiful colours and finishes to brighten up your home.

Where can I get high quality double glazing from?

We’ve been providing quality double glazing and home improvements across the South West since 2004. All of our windows, door and home improvements come with a 10 year guarantee but should last you much longer than this. We are FENSA and CPA accredited so you know you can trust us with your home. Get in touch today to find out more about our double glazing.

Areas we serve

Swindon-based family run double glazing installers

With a head office in Swindon, a short trip from the motorway, we are ideally located to offer our services across Wiltshire, Reading, Bath, Bristol, Marlborough, Berkshire, Gloucestershire, Oxfordshire, and other surrounding locations.

Emerald provide and install home improvements in all materials – uPVC, aluminium and traditional timber. No matter what material you choose, you can be sure we’ll provide you consistent quality – our work is always finished to the highest standards, whether you’re installing 2 windows or 20!

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What our customers are saying

We pride ourselves on the hundreds of customer reviews that we have collected over our many years of trading. Why not read some of our testimonials yourself, and see how our customers have rated their experience with our service.

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Replacing patio door with a window

Emerald windows were brilliant. The patio door was removed and replaced with a window. All work was carried out from bricking up the outside to plastering the inside. Great work...

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Lesley B

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Local Family Friendly Company

We worried about choosing a window company. We looked at all the usual national firms but we preferred the feel of a smaller local family run business as the rep...

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Stephanie C

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Very Pleased

Very pleased with the whole process from Mark letting us see and touch the product in the showroom in Swindon (many don't!), to a transparent price breakdown, no "buy now...

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Casey Collins

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Highly Recommended

Highly recommend Emerald Windows and Doors; new Front and back doors fitted yesterday. Cannot praise Mark the Fitter enough, courteous, friendly and very helpful. Top job with attention to detail...

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Michelle Webb

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Emerald Windows – A Quality Product

Emerald windows have just installed a new composite front door to our property. We are very pleased with the product and the installers were polite, professional and have carried out...

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Richard K

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