Double Glazed Units

Our double glazed units are expertly manufactured to provide outstanding thermal efficiency. Ideal for both residential and commercial applications, they are designed to meet the highest standards for performance and longevity.

Why Double Glazing?

Choosing double glazing for your home or building project is a smart investment that offers a range of practical and long-term benefits. 

This type of glazing is made up of two panes of glass with a gap in between, which acts as an insulating barrier to reduce heat loss.

Double glazing helps to ensure your home stays warmer in the winter and cooler in the summer, helping to lower energy bills and reduce your carbon footprint.

Double glazed windows are significantly more resistant to breakage than single glazed options, offering greater strength and enhanced security. 

Enhancing Efficiency

Our double glazed units are designed to significantly enhance energy efficiency by reducing heat loss and minimising drafts. The two panes of glass are separated by a gas-filled cavity, which acts as an insulating barrier, contributing to a more comfortable indoor environment and a reduced carbon footprint.

Benefits of Double Glazing

  • Enhanced thermal insulation
  • Improved security
  • Custom sizes available
  • Super-fast turnaround
  • Pre-cut and made-to-order
  • Designed to eliminate cold spots

Perfect For Every Project

Our double glazed units are the perfect solution for every project—whether you’re working on new builds, refurbishments, or bespoke architectural designs. 

Engineered for outstanding thermal efficiency and durability, they provide year-round comfort while helping to lower energy costs. 

From standard sizes to oversized glass, we’ve got the flexibility to meet any design requirement, making our double glazed units a reliable and versatile choice for both residential and commercial applications.

Speak to the experts

Get in touch with our team of experts to explore the endless opportunities with double glazing for your next project!

Explore more from our glass range...

See What Are Customers Are Saying

4.5
Based on 28 reviews
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antony foster
10:03 08 Mar 24
Shazad Patel
11:33 19 Jan 24
A one stop solutions for your all glazing requirements. Its been 2 years we are buying fire and security glasses & DGU'S from them. Very supportive staff & management. Special thanks to Zara Washington for support and solving deliveries.Cheers!!!
caroline cade
12:03 17 Jan 24
Great company to trade with
Alexis Coombes
08:57 30 Mar 23
Our company have been using Performance Glass for a while now. They are always friendly, helpful and delivery when promised. Thanks to all at PGP.
R F
14:13 23 Mar 23
Midori Aluminium
10:03 23 Mar 23
highly recommended, quality glass and speedy delivery!
Steve Hildrith
10:00 23 Mar 23
we have used performance glass for our latest project to be shown on t.v. in September, unfortunatley we cannot divulge position etcuntil the project has been televised.The staff at performance were superb especially with the expertiseon which glass to use. I would have no hesitation using this company in the future as they treat us like friends as well as clients
Ian Simpson
20:23 21 Mar 23
Very satisfied with all aspects of service from PGP Ltd. In PGP we have found a supplier that is genuinely interested in the products we manufacture, the specialist markets we supply, and how to help us to develop new solutions. The PGP office works very efficiently to deal with our pricing requests, technical questions etc. which helps us greatly. Product quality has been excellent, with the majority of the orders that we have placed with PGP delivered on time in full. Highly recommended.
Kip McGrath Darlington
12:54 16 Mar 23
Order several glass Pellini Integral Blinds for our centre. From the start the sales team were fantastic! Lots of advice given and when we decided on what we needed, the delivery time was really great. More than happy with overall service and product. Thanks
Tom Cockerill
20:14 13 Feb 23
We ordered fire resistant glass which was needed for our offices. The team at PGP were fantastic! We were able to work with the them to get the exact product we needed in a timely manner. We are extremely happy with the quality of the glass. Thanks again.
Peter Hannah
17:41 07 Feb 23
Excellent product and great customer service.Used their free standing system for a number of balconies on a development, no problems at all and looked great when completed.
antony foster
10:03 08 Mar 24
Shazad Patel
11:33 19 Jan 24
A one stop solutions for your all glazing requirements. Its been 2 years we are buying fire and security glasses & DGU'S from them. Very supportive staff & management. Special thanks to Zara Washington for support and solving deliveries.Cheers!!!
caroline cade
12:03 17 Jan 24
Great company to trade with
Alexis Coombes
08:57 30 Mar 23
Our company have been using Performance Glass for a while now. They are always friendly, helpful and delivery when promised. Thanks to all at PGP.
R F
14:13 23 Mar 23
Midori Aluminium
10:03 23 Mar 23
highly recommended, quality glass and speedy delivery!
Steve Hildrith
10:00 23 Mar 23
we have used performance glass for our latest project to be shown on t.v. in September, unfortunatley we cannot divulge position etcuntil the project has been televised.The staff at performance were superb especially with the expertiseon which glass to use. I would have no hesitation using this company in the future as they treat us like friends as well as clients
Ian Simpson
20:23 21 Mar 23
Very satisfied with all aspects of service from PGP Ltd. In PGP we have found a supplier that is genuinely interested in the products we manufacture, the specialist markets we supply, and how to help us to develop new solutions. The PGP office works very efficiently to deal with our pricing requests, technical questions etc. which helps us greatly. Product quality has been excellent, with the majority of the orders that we have placed with PGP delivered on time in full. Highly recommended.
Kip McGrath Darlington
12:54 16 Mar 23
Order several glass Pellini Integral Blinds for our centre. From the start the sales team were fantastic! Lots of advice given and when we decided on what we needed, the delivery time was really great. More than happy with overall service and product. Thanks
Tom Cockerill
20:14 13 Feb 23
We ordered fire resistant glass which was needed for our offices. The team at PGP were fantastic! We were able to work with the them to get the exact product we needed in a timely manner. We are extremely happy with the quality of the glass. Thanks again.
Peter Hannah
17:41 07 Feb 23
Excellent product and great customer service.Used their free standing system for a number of balconies on a development, no problems at all and looked great when completed.

Double glazing can help reduce condensation, but it doesn't completely stop it. By creating an insulating barrier between the inside and outside temperatures, double glazing keeps the inner pane warmer, which makes condensation less likely to form. However, condensation can still occur if there’s excess moisture in the air and poor ventilation, especially on the outside or between the panes if the seal is broken.

Double glazed windows reduce heat loss by using two panes of glass separated by a gap filled with inert gas. This gap acts as an insulating barrier, slowing down the transfer of heat between the inside and outside of a building. The inner pane keeps warm air in, while the outer pane helps block cold air from entering. This insulation effect significantly improves energy efficiency by keeping indoor spaces warmer in winter and cooler in summer.

The cost of double-glazed windows can vary depending on the manufacturer and size. Here at UKO Glass, we offer the best value for money on our double glazed units. We work closely with a range of window manufacturers across the UK as their main glass supplier.

Double glazing refers to a type of window construction that features two layers of glass with a gap between them, typically filled with gas for insulation. This design helps to reduce heat loss and improve energy efficiency. It's commonly used in residential and commercial buildings to enhance comfort and reduce energy bills.

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