Here at Diamond Windows Droitwich, winter is the season when we hear from many homeowners who suddenly realise their windows are not performing as well as they used to. Cold draughts, condensation and rising heating bills have a way of revealing issues that stay hidden during the summer. That’s where winter window maintenance comes in.
A few simple winter checks can make a real difference. As a local installer who has worked in homes across Droitwich, Worcester and the wider West Midlands for many years, we know the common problems and the practical fixes that help keep homes warmer and more comfortable.
Below, we’ve put together some straightforward advice you can use right away, along with signs that it may be time to talk to us about replacement windows.
Draughts are one of the most frequent complaints we hear from customers in winter. Even older double glazing can lose heat if the seals have started to fail.
Have a quick walk around your home and check:
Windows are working parts, and they benefit from a little care now and then. A simple clean can help them close more tightly and reduce draughts.

Avoid abrasive cleaners as they can mark frames. A tiny amount of light lubricant on hinges and locking points can also help, especially on older units we commonly see in properties.

Condensation on the inside of glass is normal in winter, especially in busy family homes. But if you see moisture between the panes, that’s different.
This usually means:
We regularly replace failed sealed units and older double glazing where this has happened. It is one of the clearest signs that a window has reached the end of its life.
Security and comfort often go hand in hand and should always be included in your winter window maintenance. If locks or handles are worn, the window may not close tightly enough to compress the seals.
It’s worth checking:
When we carry out installations, we always ensure the locking system pulls the sash firmly into the frame, helping reduce draughts as well as improving security.
Most modern windows fitted by our team include trickle vents for controlled ventilation. These help reduce condensation without fully opening the window in winter. A small amount of airflow can make a big difference to comfort and humidity at this time of year.
Make sure:
Maintenance goes a long way, but if your windows are 15–20 years old or more, they may simply not be performing to modern standards. Many of the homes we visit still have early-generation uPVC that has now started to fail. 
You may want to consider new windows if you notice:
Modern uPVC and aluminium windows installed by Diamond Windows offer far better energy efficiency, improved security and a choice of styles and colours to suit both modern and traditional homes.
Winter is the perfect time to take a closer look at your windows. Simple checks around seals, locks, vents and glass can help reduce cold spots and make your home more comfortable. If your windows are ageing or underperforming, our team at Diamond Windows Droitwich is here to help with your winter window maintenance by providing honest advice, surveys and quality replacements.
If you’d like us to take a look, pop into our showroom or get in touch for a friendly chat. We’re local, approachable and always happy to talk through the best options for your home.
“Very pleased with work carried out. Approachable staff very pleasant.”
“The Diamond Window guys installed our new front door and sidescreen and did a fantastic job. They were highly skilled and also very tidy. I would use them again”
“Excellent selection, first class advice and outstanding fitting. We wouldn't go anywhere else for double gazing projects.”
“From design to completion , excellent service,friendly and competent tradesmen.”
Diamond Windows (Droitwich), Company Registration 5367399, of Registered Office Unit 22 North Street Industrial Estate, Droitwich Spa, Worcs, WR9 8JB is an Introducer Appointed Representative of Shermin Finance Limited FRN 727594.
Company Registration 01276121. Registered Office Homeserve, Cable Drive, Walsall, England WS2 7BN. Shermin Finance Limited act as a credit broker not a Lender, finance is subject to status and affordability.
© 2026 Diamond Windows Droitwich All rights reserved. Site by i3MEDIA