The sash has sunk and rubs against the frame, the handle turns slack, cold air comes through under the seal — know the feeling? In many cases this is sorted in 20–40 minutes with a proper adjustment, with no need to replace the window. uPVC windows are built for thousands of opening cycles, but with time the hardware works loose: hinges lose strength, clamping pressure falls, the sash moves by fractions of a millimetre — and then the draught starts. We adjust windows all over Warsaw: set winter and summer mode, get rid of draughts, fine-tune hinges and strike plates. If the seal is worn out — we replace it. Very often one visit is enough to get the window working almost like new again.

How much does window adjustment cost and what affects the price

Adjustment is among the lowest-cost services. The final amount depends on how many sashes there are, the state of the hardware and how much needs doing. A basic switch to winter mode is the starting point. If hinges need tightening, strike plates need replacement or the seal needs changing — the cost goes up a bit. Still, even in harder cases it is only a small part of the price of replacing a window.

The price covers diagnostics, pressure setting, hinge tuning and a check of how the sash works. Seal replacement, strike plates or a new handle are charged separately, but these parts are cheap. Current prices below (compatible with Porta, VOX, Erkado and similar).

Describe the issue and send a photo of the window — the technician will give you an approximate price before arrival.

How window adjustment works: step by step

Adjustment is more than a quick twist with a hex key. The technician checks the whole system so the window works properly, not just stops the draught for a few days:

1. Inspection and diagnostics. The technician opens and closes each sash, checks clamping pressure with a sheet of paper — if the paper pulls out with no resistance the pressure is too low. He looks over the seal, hinges and strike plates.
2. Checking sash geometry. Using a level and visual check we see whether the sash has dropped or gone out of square. If it rubs the frame at the bottom — the lower hinge has sagged. If at the side — the top corner has moved.
3. Hinge adjustment. With a 4 mm hex key we tighten or loosen the upper and lower hinges. The lower hinge sets the vertical position and left-right movement. The upper hinge sets the pressure on the top corner and the tilt.
4. Setting the pressure (winter/summer). On the edge of the sash there are eccentric cams (mushroom pins). We turn them: mark facing the street — winter mode (maximum pressure), mark facing the room — summer (lighter pressure). Between seasons — the middle position.
5. Strike plate adjustment. If the cams are set right but a draught is still there, the issue is in the strike plates on the frame. We tighten or move them so the cam catches the slot exactly.
6. Checking and lubricating the hardware. We apply silicone lubricant to all moving parts: hinges, cams, scissors, handle gearbox. This cuts down wear and makes the window easier to open.
7. Final check. The sash should open easily, close without force and the handle should lock in every position. We test the pressure with paper around the full perimeter. If the seal is badly worn we advise replacement.

Common mistakes when adjusting windows

Plenty of people try to adjust windows themselves after watching online videos. Sometimes they manage it, but more often they make the problem worse:

• All cams cranked to maximum. Leaving the window in permanent winter mode squashes the seal flat within a year or two and then it stops sealing properly. Change modes with the seasons.
• Turning the wrong screw. Each hinge has several adjustment screws — one for vertical, one for horizontal, one for pressure. Twisting them at random makes the sash go even more out of line.
• Not lubricating the hardware. Adjusted, but left dry. A few months later the mechanism sticks again, the hinges squeak and the handle turns hard.
• Ignoring a worn seal. Adjustment will not solve anything if the rubber is cracked and has lost elasticity. First replace the seal, then set the pressure.
• Wedging cardboard under hinges. A home-made fix for sagging. It may help for a short while, but it throws off the geometry and speeds up hardware wear.
• Forgetting the strike plates. The cams are set — but the sash still does not clamp tight. The reason is that the strike plate has moved or loosened.

What to prepare before the technician arrives

Adjustment is clean and fast work, but a few simple things will make it go quicker:

• Remove plants, vases and anything else from the windowsill that stops the sash opening fully.
• Move curtains and blinds aside — the technician needs clear access to the window.
• If the window is on a balcony, make sure the way to it is not blocked.
• Write down what exactly is wrong: draught from above, from below, sash scraping, handle not turning all the way.
• Check whether all windows in the flat need adjustment — it is cheaper to do everything during one visit.
• If the windows are still under the manufacturer’s warranty, make sure DIY interference will not cancel it.
• Prepare access details: entry code and parking information — the technician comes with tools.
• If there is a fly screen, take it off in advance — it can interfere during diagnostics.
• It is best to keep pets in another room — an open window and a curious cat are not a good mix.
• Decide whether the balcony door needs adjustment as well — the principle is the same.

A real case: window adjustment in a Wola flat

A client in Wola said that in winter three living-room windows were letting in a clear draught, even though they had been fitted only four years earlier. Heating bills had gone up and it had become unpleasantly cold to sit near the radiator. During inspection we found that every cam was still set to summer mode — nobody had ever switched the windows to winter. The seals were in good shape, but the clamping pressure was very low.

We turned the cams to winter mode and tightened the lower hinges on two sashes — they had dropped slightly and were rubbing the frame. We lubricated all mechanisms with silicone spray. On one window a strike plate had shifted — we tightened it and fixed it in place. After the adjustment we checked the pressure with paper — the sheet held tight all around the perimeter. The whole job took about an hour for three windows. A week later the client called back and said the draughts were completely gone and the room felt much warmer. The lesson is simple: sometimes you do not need new windows to stop cold air — proper adjustment does the job.

Frequently asked questions

Who does the work and what guarantees we offer

Window adjustment is done by technicians who handle window hardware every day — Roto, Maco, Siegenia, Winkhaus. We know how each system works and which keys are needed for it. We come with a full set of hex keys, screwdrivers, silicone lubricant and spare consumables (cams, strike plates, seals). We cover all of Warsaw — from Bielany to Mokotow. We guarantee that after adjustment the sash will close smoothly, the pressure will be even and the draught will disappear. If the problem comes back within a month, we return and fix it free of charge. Call or message us — we usually reply within an hour.