Why are my uPVC windows letting in cold air?

June 15, 2019

Oak effect uPVC casement leaded windowOne of the most common signs that your window needs to be repaired or replaced is when it lets in cold air. This may be due to damage or failure in the window seal. This happens naturally over time, but no there’s no need to panic. For over 30 years, Jack of Glass has been installing new and replacement uPVC windows in homes in High Wycombe and throughout Buckinghamshire. We also offer a comprehensive repair service to fix issues that you may have with your double glazing.

We’ve collected a few other signs that your windows may need to be repaired or replaced:

There’s condensation between the glass panes of my window

This is a sign that the seal on the windows is damaged or broken down. If this is the case, your windows will have to be repaired or replaced.

Check out our handy guide on how to demist double glazing.

My energy bills are high

There are several measures you can take to improve the energy efficiency of your home, including changing energy providers and switching to LED lightbulbs. Updating to double glazed windows could save as much as £155 a year on your energy bills. A draught meandering between rooms leaves an unpleasant chill in the air, leading to most people to turn up the heating. Make draughts a thing of the past and save money by updating to newer energy efficient double glazed windows.

My uPVC windows are cracked

This may seem like an obvious sign, but small hairline cracks can also drastically affect the comfort in your home. Double glazed windows will generally feature an insulating layer of gas between the panes of glass. Releasing this gas radically affects the window’s ability to retain heat and keep the elements at bay.

Bespoke splash backs and uPVC windows in High Wycombe and throughout Buckinghamshire

Jack of Glass is proud to have built a reputation for high-quality products and outstanding customer service. From our base in High Wycombe, we have helped improve the home of customers throughout Buckinghamshire for over 30 years.

Get a taste of our range of beautiful bespoke kitchen splashbacks and windows including sash windows and casement styles, and chat to your friendly and knowledgeable team in our High Wycombe showroom. Alternatively, contact us online to discuss any of our products and services.


Areas we serve

Operating out of High Wycombe for 30 years, we know the local area like the back of our hand. We supply and install high quality glass and glazing to homes in Princes Risborough, Chesham, Amersham, Beaconsfield, Marlow and beyond.

If you have a particular way of improving your home in mind and reside anywhere in or around a 20 mile radius, feel free to get in touch with our reliable team. We’ll be in touch swiftly.

K. Piowman-sale

Jack of Glass have done a wonderful job in putting a coloured glass worktop to my dressing table and installing a mirror. Has totally transformed my room. Unbelievable. Take a look at their showroom some really good ideas with glass, fantastic colours.

A. Hunt

Outstanding quality of service, and great at catering to bespoke requests. They are fantastic value for money, and a lovely bunch of boys to boot 🙂

H. Ellams

Great service at Wycombe Museum last Friday. The guys went above and beyond with their glass delivery service. This is the 3rd or 4th time i’ve used them.Just to let you know I shared it on High Wycombe facebook page too.

M. Harber

Incredible transformation. Great service. Amazingly fast replacement of a very big window!! Everything cleared up and great value for money.

M. Shoaib

Purchased 2 green house windows, got the size wrong, went back to get it cut to a smaller size FREE of charge and stayed after closing time until I arrived.

N. Shanta

I highly recommend Jack of Glass! Matt, Chris and their team deliver an outstanding service. I am extremely happy with the job that they did in our flat. It really exceeded all of my expectations and the room looks absolutely beautiful with the floor to ceiling mirrors.

S. Nandha

Great team and with great quality to detail on the finish of my glass splashbacks, also the bi-fold door works a treat for our dream house

Mr. Barlow

I recently needed to replace around ten or so panes of glass in my greenhouse . Very good service very nice guys ,cut and wrapped the glass while i waited and even made an alteration to a pane that i had measured wrongly .Thank you for the help and i will use again.

A. Lovell

We have recently had our front door and windows replaced by Jack of Glass. They were great. The communication was amazing, we knew every step of the way what was happening and they left place spotless. Our new door and windows have completely changed the house. Very happy and would recommend to anyone.

Josh Webb

Jack of glass have recently replaced all my windows efficiently and to a high standard. The price was also very reasonable. The customer service was outstanding along with the services they provide. Highly recommended.

Mr Bennett

I had to replace a small double glazed panel in a window. I though it would be difficult to get anybody interested as it was such a small job. However, Jack of Glass did the work. They visited the house to take the measurements, ordered the replacement glass and fitted it all very efficiently and at a reasonable cost. I will use them again.

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