Window repair and adjustment in Warsaw — when to call a professional

A window that won’t close properly, draughts from under the seal, a wobbly or jammed handle — every second window faces these issues after 5–7 years of use. Most problems are fixed by adjusting the hardware in 15–20 minutes, without replacing the window itself. We work across all of Warsaw — from Ursynów to Bielany, arriving with a full set of keys and spare parts.

How much does it cost and what affects the price

Window adjustment — from 30 zł per sash. Sealing — from 25 zł per running metre. Hardware repair, handle replacement, sag correction — from 150 zł. Roller shutter or blind installation — from 200 zł. The price depends on the window type (PVC, wood, aluminium), number of sashes, and hardware condition. Small fixings are included. Seals, handles, and hardware components are charged separately if replacement is needed.

How the on-site work goes

1. You describe the problem by phone — draughts, won’t close, squeaks.
2. The technician confirms the window type (PVC, wood) and number of sashes.
3. We agree on a time — usually same-day or next-day.
4. On site, the technician checks every sash: compression, geometry, seal condition.
5. Adjusts hardware with hex keys, replaces parts if necessary.
6. Tests the result — the sash should close tightly with no effort.
7. Gives maintenance tips: lubricating hardware, caring for seals.

Common customer mistakes (and how to avoid them)

• Delaying adjustment — the sash sags, wears out the seal, and a 30 zł fix turns into 300.
• Trying to adjust without understanding the hardware layout — they throw off the compression and the window won’t close.
• Taping gaps with adhesive tape for winter instead of replacing the seal — moisture and mould build up underneath.
• Never lubricating the hardware — the mechanism jams, the handle breaks.
• Buying a seal with the wrong profile — it won’t stay in the groove and falls out within a month.
• Replacing the entire window when a 150–400 zł hardware swap would have been enough.

What to prepare before the technician arrives

• Remove plants, vases, and small objects from the windowsill.
• Ensure clear access to the window — move furniture if it blocks the sash.
• If you know the hardware brand (Roto, Maco, Siegenia) — let the technician know in advance.
• Describe the problem as specifically as possible: which sash, in what position it jams.
• Check whether other windows also have issues — it may be worth adjusting them all at once.
• If the window is on a high floor with no outside access — let us know.
• Provide access details: intercom code, key, parking info.
• If you need a handle replacement — you can buy one in advance (standard: 7×7 mm spindle, 35 mm length).

A real case from Warsaw

A client in Mokotów complained about strong draughts from her balcony door in winter. Neighbours suggested replacing the entire door. On inspection, we found the sash had dropped 4 mm due to loose hinges, and the seal had hardened and cracked. The technician tightened the upper and lower hinges, set the compression cams to winter mode, and replaced the seal around the full perimeter. The job took 40 minutes. After adjustment, a sheet of paper pinched between the sash and frame couldn’t be pulled out — compression was spot on. The client confirmed the draught had completely disappeared. Instead of a door replacement costing 3,000+ zł, the repair came to 250 zł.

Frequently asked questions

How do I know my window needs adjustment?
The sash closes with difficulty, the handle turns stiffly, there are draughts from under the seal, or the window won’t stay in the tilt position.

Can wooden windows be adjusted?
Yes, if they have modern hardware. Older wooden windows without tilt-and-turn mechanisms are adjusted differently — an inspection is needed.

How often should windows be adjusted?
Once a year is recommended — tighten compression before winter, loosen in spring.

Is the seal replaced on the spot?
Yes, the technician removes the old one and fits a new seal into the same groove. Takes 10–15 minutes per sash.

How much does it cost to adjust all windows in an apartment?
Depends on the number of sashes. A typical 3-room flat with 6–8 sashes costs 200–350 zł.

Do you work with roof windows (Velux, Fakro)?
Yes, we adjust them and replace seals. For glazing replacement — please enquire.

Who does the work

Window adjustment and repair is carried out by technicians experienced with Roto, Maco, Siegenia, and Winkhaus hardware. We cover all of Warsaw, minimum order from 200 zł. Message or call us — we’ll advise whether a visit is needed or a DIY adjustment will do.