Save Energy
Don’t miss out!
If you’re thinking of replacing, retrofitting or upgrading the windows and doors in your home, contact us for a no-obligation quotation.
Reduce your energy costs
Lower consumption means lower bills, immediately.
Increase the style of your home
Creating a nicer place to live and entertain.
Make your home more comfortable
Lower ongoing maintenance.
Energy Efficient uPVC Windows & Doors
Case Study:Family home becomes 15% more energy efficient
The Problem
This detached house was bought in 2021 to accommodate a growing family. The new owners undertook a BER assessment which gave it an ‘F’ Energy rating, with a high energy consumption rate of 391.2 kWh/m²/year. As glass is responsible for more heat loss than most other building materials, they decided to replace the old, inefficient uPVC doors, and the double-glazed windows which had a high U-value of 2.7 W/m²K.
The Solution
After discussing all the options, the new owners decided to upgrade to uPVC Senergy Elite Windows. A-rated Senergy Elite windows are triple-glazed and have a U-value of 0.9 W/m²K, significantly lower than the old windows. This U- value reduction is largely due to the materials used. Pilkington K Glass S (low-e) is used in the inner and middle panes, while Pilkington Optiwhite glass (low-iron) is used on the outer pane. The space between is filled with 90% Argon gas, with a warm edge spacer bar for optimum energy efficiency. The old doors were replaced with Senator triple glazed uPVC residential doors. The front door is a thermally efficient, triple glazed Sentinel Composite Door, with a U-value of 0.98 W/m²K, including the frame.
The Results
After all the windows and doors were replaced, a second BER assessment was carried out. It showed that, by changing the windows and doors alone, the F-rated home was raised to an E1 energy rating, while the energy consumption went from 391.2 kWh/m²/year, down to 332.86 kWh/m²/year – a reduction of 15%.
*15% energy saving is based on the case study above.
What makes windows energy efficient?
- Quality frame material
- Multiple panes of glass
- Gas between the panes
- Warm edge spacer bar
- Low-e/low-iron glass
Why choose Senator Windows?
- 40 years in business
- Energy-efficient, A rated uPVC windows
- Trusted provider of over 1 million quality products
- 15 year guarantee*