Should You Lubricate Plastic Windows If They Are Working Fine?

"You have to grease it to make it go." This rule works not only for cars but for plastic windows too. I'm Dmitry, a PVC window repair master with more than 20 years' experience, and I can say plainly: most window breakdowns in Minsk could have been avoided with a simple annual lubrication of the hardware.

Why windows start breaking "suddenly"

Clients often say: "Yesterday everything was fine, and today the window won't close." In reality the problem builds up over months and even years. The factory lubricant loses its properties over time. Dust and dirt stick to it, especially in the city, where there's a lot of traffic and building dust. As a result:

the mechanism starts to work with effort;
squeaks and clicks appear;
metal rubs against metal;
the hardware gradually wears out.

👉 And at that moment the window can no longer just be serviced — you have to carry out a full-scale plastic window repair in Minsk.

What happens without lubrication

I regularly see windows where the strike plates are worn, the cams are scored, and the handle barely turns. 👉 The result: instead of 30 minutes of servicing, a repair costing tens or hundreds of roubles.

How often should windows be lubricated?

The recommendation is simple:

at least once a year;
if the windows face a road — twice a year.

It's especially important to do this after a renovation in the flat, after winter, and if the window has started to work harder.

What to lubricate with

Suitable options: machine oil, silicone lubricant, universal WD-40. ❌ You must not use vegetable oil — it only makes the situation worse.

Where to apply the lubricant

All the moving elements are lubricated:

the locking cams;
the strike plates;
the hinges;
the mechanisms around the perimeter of the sash.

👉 The simple guide: wherever there's friction, lubrication is needed.

Why this matters especially in Minsk

In city conditions windows get dirty faster: road dust, exhaust fumes, construction and renovations. That's why PVC window servicing in Minsk is not a recommendation but a necessity.

When it's better to call a master

If you've noticed a squeak or clicks, a stiff handle, or that the window has started closing worse, 👉 it's better not to delay. Often lubrication and adjustment are enough — and you avoid an expensive repair.

📞 Phone: +375 (29) 135-50-50
🌐 Website: rpo.by
Brand: Spravnae Akenca