Aluminium Window Adjustment – What Makes It Different from PVC?
An aluminium window starts sticking or squeaking — and that's when it becomes clear that adjusting an aluminium system is fundamentally different from servicing PVC windows. Different material, different hinges, different tools.
Aluminium windows require a different approach to adjustment than PVC. The lower thermal expansion rate of aluminium profiles, combined with their higher thermal conductivity, means frames respond quickly to temperature changes — but move less overall. Attempting to adjust an aluminium window the same way as a PVC one risks permanently deforming the soft aluminium profile or stripping threaded adjustment points.
Signs Your Aluminium Window Needs Adjustment
The most common indicators are a heavy or stiff closing action, an uneven gap around the sash perimeter, visible scuff marks where the sash rubs the frame, draught from one corner only, or creaking sounds during temperature changes in the morning or evening. Any of these points to a sash that has shifted out of its optimal position.
Scissor Hinges vs. Integrated Concealed Hinges
Aluminium windows typically use one of two hinge systems. Scissor hinges (also called peripheral scissors) guide the sash at four points via upper and lower scissor arms — common in tilt-and-turn windows. Adjustment is made via set screws in the scissor arms and mounting blocks. Integrated concealed hinges, found in premium aluminium systems, are hidden entirely within the profile. They require access through service ports in the bottom profile and the correct hex key sizes specified by the system manufacturer (Schüco, Reynaers, Aliplast, Aluprof all differ). Using incorrect torque on concealed hinges strips threads in the aluminium profile — an expensive repair.
3D Adjustment – Three Axes
Correct adjustment covers three axes: up/down (vertical, corrects sash drop), left/right (horizontal, equalises gap width), and compression depth (how firmly the sash presses against the seal). All three interact — changing compression affects closing effort, and changing vertical position may affect corner sealing. Adjustments should be made sequentially and tested after each change.
What Not to Do
Never force an aluminium sash shut — aluminium deforms plastically and a bent profile cannot be fully straightened. Do not lubricate aluminium hardware with machine oil; it damages powder-coat lacquer and EPDM seals. Use only silicone-based lubricants. And never attempt adjustment of concealed hinges without knowing the specific system's adjustment ranges and screw specifications.
How Often to Adjust
Manufacturers recommend a service check annually. Windows in commercial buildings with high opening frequency benefit from a check every six to eight months. The ideal time is early autumn — after summer thermal stress, but before winter heating season when any draught causes real energy loss. For a full system assessment or when adjustment is no longer sufficient, contact our aluminium window repair team. For scheduled maintenance, our professional window adjustment service covers all aluminium systems.
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Frequently Asked Questions
Everything you need to know about our window and door repair services
Yes, the initial diagnostics and our technician's visit to assess the work are completely free. No hidden costs and no obligations. If you decide to proceed with the service, the technician will provide a clear quote on site, explain all the details, and if needed – can start work immediately and complete the repair during the same visit.
Absolutely! We provide a warranty for both the services performed and the materials used – in accordance with applicable regulations.
We cover all of Poland, with a particular focus on major metropolitan areas: Warsaw and surroundings, Kraków and Małopolska, Łódź area, Poznań and surroundings, Katowice and all of Silesia (Sosnowiec, Gliwice, Chorzów, Bytom, Zabrze, Tychy and 30+ cities). Call us – we'll call back within 15 minutes to arrange a visit.
The price depends on the type of window, the nature of the issue, and the materials needed. Upon arrival, the technician will provide an exact quote on site with no hidden fees, and you decide whether you want to proceed with the work.
Booking a free diagnostics is very simple. Just call our contact number or fill in the registration form – either way it only takes a few minutes.
In most cases, repair is sufficient: replacing seals or hardware, sealing, adjustment, cleaning and lubricating the mechanisms. This is a much cheaper solution than installing new windows.
Repair is cheaper because you don't need to buy a new window, remove the old one, dispose of it, or carry out finishing work after installing a new unit. Repair saves both time and money, being a significantly more cost-effective solution.
We service windows from all major manufacturers, including: Rehau, Veka, KBE, Schuco, Salamander, Aluplast and many others. Our technicians undergo training on the specific mechanisms of each manufacturer.
Yes, we accept all major payment cards, bank transfers and cash. Payment is made after the work is completed.
Yes, we provide services all year round. During winter, we carry out window servicing using special methods to avoid cooling down the rooms and ensure maximum comfort.
Balcony door adjustment for PVC or aluminium doors starts from 80 zł. It includes precise 3D adjustment of hinges and fittings, eliminating sagging, draughts and closing issues. Free on-site diagnostics – the technician will quote on arrival.
Yes. We specialise in sliding and HST terrace door service for all major systems: Schüco ASS 70/77, Aluprof MB-77 HS, Aliplast Imperial. We replace load rollers, repair tracks, adjust closing pressure and service drive mechanisms. From 150 zł.
A window ventilator (trickle vent) is a ventilation device fitted in or above a window frame, providing a constant supply of fresh air without opening the window. Since 2021 (Polish building regulations WT 2021), ventilators are mandatory in new buildings. We install pressure-controlled, humidity-sensitive and acoustic ventilators – from 80 zł each.
After your enquiry we call back within 15 minutes and agree a time. In most cities (Warsaw, Katowice, Łódź, Poznań, Kraków) a technician arrives the same or next working day. For urgent cases such as a fallen hinge or jammed door, we aim to arrive within a few hours.