How to spot if your windows are in need of repairs or replacement

April 19, 2018

Provided they receive regular maintenance, windows can last a considerable number of years. However, consistent upkeep isn’t always enough; a repair or replacement window is sometimes necessary, to keep them performing their best. To help you discover if your windows need a helping hand, we’ve compiled a list of signs that indicate they’ve been damaged.

A noticeable draught

Is there an audible breeze when standing close to your windows? Or, can you feel a draught seeping through? In either case, a repair or replacement window is required. Draughts are caused by a number of things; deep cracks in the framing or glass and failed window seals are possible causes. Determining the cause and extent of the damage will determine the next course of action (repair or replacement).

Inflated energy bills

Poorly insulating windows tend to cost households between 10-25% more on their energy bills. If you’ve noticed a draught coming through your windows and your energy bills appear to have risen, it might be time to get the professionals in for a repair or replacement window.

Poor soundproofing

A window that is functioning correctly should make it relatively difficult to hear things that are going on outside. If you find yourself being able to hear far away street noise, or unruly locals too clearly, it is likely that a replacement is necessary.

Are there more bugs in your home than usual?

If you’ve found an increasing number of insects crawling round your home of late, your window could be damaged. Possible causes may be a crack in the glass, or a damaged windowsill.


A build up of condensation is nothing to worry about, provided it’s outside the glass on the interior or exterior of the window. However, condensation between the two glass units is a sign that the seals are leaking and the gas cavity is no longer sealed. This means the sealed glass unit will need replacing.

Difficulty opening and closing

If you find your windows continually difficult to open and close, the mechanism may require some repair work or some new parts. The window will need replacing, in severe cases.

Jack of Glass – repair specialists

Here at Jack of Glass, we can determine the extent of any window damage. Whether it’s a minor repair, replacement, or anything in between, our cost-effective service is there to help.

Despite regular upkeep, windows will eventually require repairing or replacing. However, knowing the signs of damage helps to determine exactly when either is required. If you’re window is suffering from any of these signs, or you’d like to learn more about our professional repair service here at Jack of Glass, get in touch with us today. You can call us on 01494 611 107 or send us an online message.


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.