Replacing Hardware on Plastic Windows in Minsk — When Necessary and How Not to Overpay

The hardware is the heart of a plastic window. It's the hardware that determines how easily the sash opens, how tightly it sits, and whether the room will be cold in winter. Over time any mechanism wears out, and then the question arises: repair or replace? I'm Dmitry, a plastic window repair master working since 2003 in Minsk and the Minsk district. In this article I'll explain when a hardware replacement is really needed, how to choose a new set, and how much it costs.

How to tell the hardware needs replacing

There are several clear signs that the mechanism is worn and easier to replace than to repair:

the handle spins freely but the sash won't open — the gearbox has broken or a tie-bar has come out;
the window is jammed in one position (for example, it won't close fully or won't tilt);
the sash has sagged and adjusting the hinges doesn't help — the hinges or scissor mechanism are worn;
the handle turns with great effort, even after lubrication.

When a repair is enough

Sometimes you can do without a full replacement. I recommend a repair if:

only the handle or one blocker has broken;
one cam (eccentric) is worn;
the fixings have loosened and just need tightening;
the mechanism is dirty and works again after cleaning.

But if the problem recurs and the hardware is more than 10–15 years old, it's better to replace the whole set. That way you can be sure the window will serve for a long time to come.

How to choose new hardware for a plastic window

The main question I hear from clients: "Which brand is better — Roto, Siegenia, Maco, or can I get something cheaper?" The short answer: for an ordinary flat window, any quality hardware compatible with your profile will do. Overpaying for a big name doesn't always give a real advantage.

What's important to consider:

Window type: turn, tilt-and-turn, mullion-free. Each has its own set of hardware.
Sash size and weight. Wide and heavy sashes need reinforced hardware with a greater load capacity.

The European leaders — Roto, Siegenia, Maco — are reliable but expensive. Turkish hardware (Fornax and similar) offers good quality with a lifespan of 5–10 years, a price 2–3 times lower than European, and parts always in stock. I don't recommend cheap Chinese no-names: the metal is soft, the cams wear quickly and the strike plates bend. In 2024–2025 my clients most often choose Fornax as the optimal option for price and quality — and I haven't seen a single case where I regretted it.

How the hardware replacement is done

Diagnosis. I come, inspect the window, determine the type of profile and old hardware, and name the exact cost.
Removing the sash. I take the sash off its hinges (essential for a full replacement) to reach all the elements.
Removing the old hardware. I undo all the screws, remove the worn parts and clean the grooves.
Fitting the new set. I install the hinges, cams, gearbox, scissor mechanism and strike plates, using original jigs (templates) for precise drilling.
Rehanging the sash and adjusting. I set the geometry by level, tune the pressure and check all the modes.

The cost of hardware replacement

Prices are approximate; I name the exact cost after an inspection:

Replacing the hardware set on a standard sash — from 120 BYN (excluding the cost of the set).
Cost of the set itself: Turkish hardware (Fornax and similar) — 70–100 BYN; European (Roto/Siegenia) — 220–250 BYN.
Hardware replacement on a balcony door — more expensive, due to the higher load and complexity.
Replacing just one unit (gearbox, scissor mechanism) — from 30 BYN.

If you have several windows, I give a discount — each subsequent window is cheaper.

Frequently asked questions about hardware replacement

Can I replace the hardware myself? Technically yes, if you have experience and tools. But a mistake in selecting the set or in the adjustment can lead to a skewed sash and a breakage. I recommend trusting a professional — it saves nerves and money.

Do I need to replace the hardware on all the windows if one has broken? No, only on the sash with the problem. However, if the windows are more than 10 years old and the hardware is the same everywhere, it's worth considering.

Can hardware from another brand be fitted? In most cases I select an analogue that fits perfectly by mounting dimensions. The main thing is that it matches the type of profile and the load.

What if the hardware is discontinued? This is a common problem with old windows (Roto Centro, old Siegenia). In such cases I fit a modern analogue with minimal adaptation. Sometimes the strike plates have to be changed too — that's not difficult.

Conclusion

Replacing the hardware on plastic windows is a responsible task that requires experience and precision. With the right approach, you'll get a window that works like new for another 10–15 years. Don't fall for the tricks of masters who suggest replacing the whole window straight away — often a hardware replacement is enough.

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