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Window Adjustment – How Often Should It Be Done?

Regular window adjustment is an important element of home maintenance, directly related to energy efficiency, comfort, and window durability. This seasonal guide will help you maintain optimal window performance year-round.

Published: January 20, 2025
10 min read
Seasonal window adjustment guide

Regular window adjustment is an important element of home maintenance, directly related to energy efficiency, comfort, and window durability. Window adjustment performed twice a year, supplemented with constant observation and proper maintenance, helps avoid serious malfunctions and major financial expenses in the future. Properly performed window adjustment helps maintain warmth, quiet, and proper microclimate in the home throughout the year.

Window Adjustment – How Often Should It Be Done

Window manufacturers and maintenance specialists recommend that window adjustment be performed at least twice a year – in spring and autumn. This frequency of window adjustment results from seasonal temperature changes that directly affect the operation of window profiles, seals, and hardware.

Spring window adjustment helps prepare windows for summer temperatures and reduce mechanical stress, while autumn window adjustment ensures maximum tightness before the heating season begins.

When Window Adjustment Should Be Done More Frequently

The standard twice-yearly window adjustment cycle is not always sufficient. More frequent window adjustment is recommended in the following cases:

  • In new construction buildings, where natural settling of the structure occurs in the first years, window geometry may change faster, so window adjustment should be performed every three or four months.
  • In buildings where windows are intensively used, for example in offices or public facilities, window adjustment may be necessary every three months.
  • In buildings located near busy streets or industrial zones, where constant vibrations affect hardware stability over time, regular window adjustment is particularly important.
  • Buildings located in coastal zones are exposed to increased moisture and salt action, so additional window adjustment is recommended after the season ends.

Signs That Window Adjustment Is Already Necessary

Even without maintaining a strict window adjustment schedule, the condition of the joinery can be assessed based on certain signals. The most common signs indicating that window adjustment is necessary are:

  • Difficult opening and closing
  • Sash rubbing against the frame
  • Handle jamming
  • Audible cracking sounds
  • Noticeable drafts
  • Increased condensation

Additionally, you can perform a simple tightness test. If a piece of paper inserted between the frame and sash easily slides out after closing the window, it means that window adjustment is insufficient.

Window Adjustment in Summer and Winter Mode

Modern windows allow window adjustment by changing the pressure force depending on the season.

In winter mode, window adjustment involves pressing the sash more firmly against the frame, which reduces heat loss and drafts.

In summer mode, window adjustment reduces pressure so that seals are not excessively loaded and maintain their elasticity.

Improper window adjustment applied for a longer time can shorten the life of seals and increase hardware wear.

Window Adjustment and Frame Material

The frequency of window adjustment also depends on the material from which the frame is made:

  • Plastic windows require more frequent window adjustment due to sensitivity to temperature changes.
  • Wooden windows require regular window adjustment due to reaction to humidity.
  • Aluminum windows are characterized by the greatest stability and usually require less frequent window adjustment.

Regardless of the type of joinery, window adjustment should be combined with regular hardware maintenance and keeping mechanisms clean.

Additional Activities Performed Together with Window Adjustment

Window adjustment should be combined with other maintenance work. It is recommended to:

  • Lubricate moving hardware elements with technical oil
  • Care for rubber seals with silicone preparations

Such window adjustment reduces friction, prevents corrosion, and extends the life of the entire system.

You should also check the patency of drainage holes in the lower part of the frame. Their blockage can lead to water accumulation and reduce the effectiveness of window adjustment.

When Window Adjustment Requires Professional Help

Although basic window adjustment can be done independently, in some cases professional help is necessary. This applies to situations when:

  • Standard window adjustment does not bring results
  • The sash is significantly lowered
  • Hardware is damaged
  • Correction of glass unit position is necessary

Also, in the case of a valid manufacturer's warranty, it is recommended that window adjustment be performed by authorized specialists.

Summary

Regular window adjustment is an important element of home maintenance, directly related to energy efficiency, comfort, and window durability. Inspection and window adjustment performed twice a year, supplemented with constant observation and proper maintenance, helps avoid serious malfunctions and additional costs in the future. Properly performed window adjustment helps maintain warmth, quiet, and healthy microclimate in the home throughout the year.

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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.

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.

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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.

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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.