Draught from Plastic Window Hinges in Minsk — Causes and How to Fix It

You came over to the window to straighten the curtain and suddenly felt a stream of cold air at the top corner of the sash. The first thought: "Surely it's not a defect? The window's new!" As a private window repair master with 20 years' experience, I often hear this question from residents of Minsk and the Minsk district. Relax: in the vast majority of cases, slight draughting in the area of the top hinge is not a defect but a feature of standard plastic windows. However, sometimes it can signal a problem that needs solving. Let's break it down.

Window design and draughting: where the gap forms

To understand the cause, you have to look inside the structure of a tilt-and-turn sash. The top hinge consists of two parts: one fixes to the frame, the other (the movable "ear") to the sash. When the window is closed, this movable part lies over the seal contour that runs around the perimeter of the sash. At this spot the seal is inevitably interrupted. In normal conditions this micro-draught is unnoticeable and doesn't affect the room temperature, especially if there's a working radiator under the window.

When a light draught becomes a problem

There are several situations in which this design feature turns into real discomfort:

Super-strong extraction. In modern high-rises the ventilation system creates a powerful draught that sucks air out of the flat, increasing the inflow through all the micro-gaps. Sometimes this even causes a whistle or howl near the hinge.
A shifted or damaged seal. If the seal has moved out of its groove in the corner during installation or use, the resulting gap will let through significantly more air.
No radiator under the window and high humidity. A cold stream hitting the hinge can cause it to ice up and condensation to form on the slopes.
Individual sensitivity. Some people react sharply to the slightest movement of cold air.

How to fix a draught from the hinge

Method 1. A temporary, seasonal measure

Glue an extra seal strip directly onto the fixed part of the hinge on the frame, in the contact zone with the sash seal. This creates an additional barrier. ⚠️ Important: don't use materials that are too thick — this can prevent tight closing and damage the hardware. The method is temporary, for the season.

Method 2. Adjustment and checking the seal (better left to a master)

You need to check: the correct position of the seal corner (whether it has slipped out of the groove); the sash pressure adjustment (the sash may be pressed less tightly at the top corner). Adjusting the eccentrics (cams) and the top hinge can improve the situation. I often carry out this kind of window adjustment in Minsk — it's an inexpensive service that quickly solves the problem.

Method 3. A radical solution for "singing" windows

If the cause is a hyper-draught, the window whistles, and temporary measures don't help, you can consider spot-sealing the drainage holes from the street side. ⚠️ Important: don't seal them completely! Use special anti-dust / wind-protection valves for the drainage, or carefully partly cover them.

Two-circuit vs three-circuit seal systems

Three-circuit systems (with an additional third contour) practically eliminate draughting through the hinges, as they create a more complex labyrinth for the air. But is it worth paying extra? For most flats with standard ventilation, no. Two-circuit windows (from market leaders such as REHAU, KBE, VEKA) with quality hardware (Roto, Maco, Siegenia) do their job perfectly and are easier to service and repair. Three-circuit systems are justified for houses with a strong draught, in very windy regions, or for people with a heightened sensitivity to draughts. I'll help choose the best option if needed.

Why trust the diagnosis and the fix to me

20+ years of experience. I know all the subtleties of window structures and can quickly identify the true cause of a draught.
Free call-out in Minsk and the Minsk district. I'll come, inspect the windows, give recommendations and name the exact cost.
A professional approach. I use only quality materials and original spare parts.
Warranty on all work.

Frequently asked questions

Is the hinge draught a defect, and can it be removed? It can be minimised by adjustment, a seal replacement or fitting a three-circuit profile. In 90% of cases an adjustment is enough.

How much does a master's diagnosis cost? The call-out and diagnosis are free. You pay only for the work and materials if a repair is needed.

What do I do if the window "sings" (whistles) in the wind? This is often linked to powerful extraction and the features of the drainage. I can fit wind-protection valves or partly cover the drainage holes from outside.

Don't suffer from draughts — order a professional window diagnosis in Minsk

If you've noticed that the window draughts or has started to whistle, don't put up with the discomfort. Call me right now for a free consultation and to book a visit. I'll come at a convenient time, carry out a diagnosis and suggest an effective solution. I work in Minsk and the Minsk district — promptly and with a warranty.

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