FAQs – Glazing & Energy Efficiency
Learn about common window and door problems and their solutions.
Is it worth upgrading from double glazing to triple glazing?
Triple glazing provides the ultimate thermal performance and noise reduction. It’s a great choice if you live on a noisy road or want the most energy-efficient home possible. However, our A-rated double glazing is more than sufficient for most homes and provides fantastic performance.
What is a U-value?
A U-value measures how effective a material is as an insulator. The lower the U-value, the better it is at keeping heat in. All our windows and doors have very low U-values, which means a warmer home and lower energy bills for you.
What are Window Energy Ratings (WER)?
This is a simple A++ to G rating system that tells you how energy efficient a window is overall. It takes into account the U-value, how airtight it is, and how much free heat it gets from the sun. We are proud to install highly-rated A++ and A+ windows as standard.
What is Low-E glass?
Low-E (low emissivity) glass has an invisible coating that reflects heat back into your room, stopping it from escaping. It’s a standard feature in our double and triple glazed units and makes a huge difference to your home’s energy efficiency.
What is argon gas and why is it used in double glazing?
Argon is a dense, non-toxic gas that we use to fill the gap between the panes of glass. It’s a much better insulator than air, slowing down the transfer of heat and cold and further improving your window’s performance.
Do I need trickle vents in my new windows?
Yes, under current UK Building Regulations, trickle vents are nearly always required for new and replacement windows. They provide essential background ventilation, helping to improve air quality and reduce condensation in your home.
What is acoustic glass?
Acoustic glass is designed to significantly reduce noise pollution. It uses a special laminated interlayer that dampens sound vibrations, making it an excellent choice for homes near busy roads, railways, or schools.
What is the difference between toughened and laminated glass?
Toughened glass is designed to shatter into small, harmless cubes if it breaks, reducing the risk of injury. Laminated glass has a plastic interlayer that holds the glass together when it shatters, like a car windscreen.
When is safety glass required?
Building Regulations require safety glass (either toughened or laminated) in all doors, windows next to doors, and any windows with low sills. The safety of your family is paramount, so we ensure your installation complies with all rules as standard.
Can you install windows with integral blinds?
Yes, we can. Integral blinds are fitted neatly inside the sealed glass unit. This brilliant design means they never get dusty or damaged and are operated by a simple, easy-to-use magnetic slider.
