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Did you know that all double glazing is NOT equally energy efficient?

October 30, 2015 by harp_admin


Lower your energy bills without compromising on comfort!
If you are considering new windows and doors, ask your installer for PLANITHERM, a new generation of energy saving window glass designed to reflect radiated heat back into the room whilst capturing free energy from the heat and light of the sun.

Making your home more energy efficient
Over a quarter of all domestic heat loss escapes through windows and doors. In these days of spiralling energy costs, this can add up to a lot of wasted money.

When it comes to windows, many homeowners tend to focus on the frame style and security features, assuming that all double glazing is equally energy efficient. In fact there are considerable difference in performance and, perhaps surprisingly, it is the GLASS that is the most important element in optimising the energy efficiency of your windows!

PLANITHERM is the most energy efficient glass available and the best possible choice for energy savings. And what’s even better is that here at HARP WINDOWS, we install PLANITHERM sealed units in all our windows AS STANDARD.

Find out more about Planitherm glass and all its benefits at Planitherm.com


Endorsements & Reviews

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Window unit replacement to a sash

10 Verified Review

Fantastic service from beginning to end. Local showroom in Watford with a super variety of windows and doors The fitment of the sash for my son's bedroom, best decision. Quality window and beautiful finish Paul and Miles are polite and friendly. Paul is a master at his job and Miles is super when finishing and completion. Thanks guys and thank you Harp Windows

Location: WD25September 2023

Replacement front door

10 Verified Review

All appointments on time. Advice useful when choosing design. Fitted in less time than expected.

Location: WD23August 2023

Bay Window Replacement

10 Verified Review

I have to say I have been impressed with HARP from start to finish. I was guaranteed the best price from John at the beginning, There was no hard sell or tricks, Just simple and honest. I ordered 1 window to replace my old bay which I was advised would take 6 weeks from ordering. My window arrived slightly earlier than anticipated and was fitted without delay. The fitting team worked in a clean and tidy manner, were punctual and had a great attention to detail.

Location: WD24July 2023

Supply rear door.

10 Verified Review

Excellent service, most helpful and friendly. Highly recommend.

Location: BH10May 2023

2 x casement windows

10 Verified Review

Very pleased with product and workmanship. All done with no fuss and no mess. Brilliant job. Billy even hoovered up afterwards !

Location: WD18May 2023

New windows and doors

10 Verified Review

Excellent service from both the showroom staff and the fitting team . Quality of the windows and doors is very good , and would highly recommend this company

Location: WD24April 2023

Read all 250 reviews

  • Harp Windows (Watford) Ltd
  • 91-93 St Albans Road
  • Watford
  • Hertfordshire
  • WD17 1UL



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