Top positive review
Reviewed in Australia on 10 September 2020
This really works! I have an old 1940s home in Victoria with the old sash windows. You could feel the chill coming through them and our heater would run constantly throughout the day, never reaching 20 degrees. If I didn't put a timer on it, it would never turn off!
I read a casestudy on this film via the Victoria Sustainability website and it said it does help reduce chill and retain some heat so I thought I'd give it a go. I'm glad I did.
Installation is relatively easy. The tape is forgiving so you can pull off the film to restart as you install. I have shutters on the sash windows so the film is completely hidden on the inside, meaning I didn't have to be perfect when sticking the film down. From the outside, you can't even tell it's installed.
note: the film doesn't go onto the window glass, it's supposed to stick on a frame, so there is a gap between it and the window glass, essentially acting like double glazing.
You can immediately feel the difference. The chill from the windows are gone and my heater is actually stopping now because it reaches the thermostat temperature! I'm already saving money.
I expected some effect, but it's surpassed my expectations.