
Why Do Plastic Windows Fog Up? When It’s Normal and When to Worry
Waking up to water droplets on the window? It doesn’t always mean the window is broken. We explain when condensation is normal — and when it’s a warning sign.
Learn how humidity, strong winds, and salt air affect window seals and fittings in the coastal region, and how to properly maintain windows in Klaipėda.

Klaipėda's coastal climate presents entirely different challenges for windows than most other Lithuanian cities. Constant humidity, strong winds, temperature fluctuations, and salt in the air gradually affect window sealing, fittings, and the overall condition of the structure.
Many of the first signs appear gradually – windows become harder to close, a draught appears, moisture accumulates, or mechanisms begin to wear. In coastal areas, these processes often happen more quickly due to harsher environmental conditions.
In coastal regions, windows are constantly exposed to a greater environmental load. Strong Baltic winds, humidity, and fine salt particles gradually affect both window mechanisms and sealing elements.
The components most commonly affected are:
fittings,
gaskets,
hinges,
compression mechanisms,
Humidity and temperature fluctuations can affect even high-quality window systems. Over time this leads to harder opening and closing, uneven compression, or reduced sealing.
Constant wind and humidity gradually affect gaskets and compression mechanisms. As a result, cold air may start entering through the windows or thermal insulation may decrease.
In coastal regions, people more often encounter moisture accumulation near windows or condensation. This is influenced not only by ventilation but also by reduced window sealing.
Salt and humidity in the air can over time affect the operation of mechanisms. In some cases, handles become harder to operate, creaking appears, or the window becomes harder to close.
The coastal environment accelerates the wear of metal components, so fitting elements may start to oxidise faster than in other regions.
Living by the coast, window maintenance is recommended regularly, even when no obvious faults are currently present.
The most common recommendations are:
regularly clean window frames,
monitor the condition of gaskets,
maintain drainage holes,
periodically lubricate fittings,
watch for signs of moisture accumulation.
Klaipėda's coastal climate places a greater load on windows than in most other Lithuanian cities. Humidity, strong winds, and salt gradually affect the seal, fittings, and the overall condition of the windows.
Regular maintenance, fitting inspections, and attention to the first signs help keep windows operating smoothly for longer and reduce the risk of more serious faults in the future.
Book a free diagnostic and consultation with a window technician.

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Find out when window gasket replacement is needed, how to spot worn seals, and why faulty window rubber increases heat loss in your home.

Learn how a professional window technician diagnoses window faults using visual inspection, clamping tests, seal assessment, and hardware checks.

Learn how to maintain plastic windows properly, recognise the first signs of faults, and when to call for professional window servicing, adjustment, or diagnostics.

Learn how to spot the first signs your plastic windows need adjusting, what you can check yourself, and when to call a professional window technician.
We serve Vilnius, Kaunas, Klaipėda, Panevėžys, Šiauliai and all of Lithuania
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Up to 5 years
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Enhance your windows and doors with high-quality components for superior functionality and comfort
We repair plastic and wooden windows and balcony doors throughout Lithuania. Aluminium window repair services are available in Vilnius and Kaunas.
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"Great communication and transparent pricing. The quality of work was excellent. Very happy with the result."
"The team was punctual, polite, and very knowledgeable. They explained the issue clearly and fixed it efficiently."
"Fantastic service from start to finish. I will definitely use them again for any future window or door repairs."
The advantages of working with our team of professionals

No-cost initial assessment to identify the problem.

We provide up to a 5-year warranty.

Our technicians arrive promptly to address your needs quickly.

99% of repairs can be completed during the first visit.

We respect your home and always leave our workspace clean.

We work with all types of window and door profiles and manufacturers.

Pay by card, cash, or we can issue an invoice.

Our goal is your complete satisfaction with our work.
Expert professionals with years of experience
Senior Technician & Team Lead
Coordinates the team and ensures the highest quality of service
Technician-Specialist
Ensures your windows and balcony doors operate smoothly
Technician-Specialist
Ensures your windows and balcony doors operate smoothly
Technician-Specialist
Ensures your windows and balcony doors operate smoothly
Technician-Specialist
Ensures your windows and balcony doors operate smoothly
Technician-Specialist
Ensures your windows and balcony doors operate smoothly
Technician-Specialist
Ensures your windows and balcony doors operate smoothly
Technician-Specialist
Ensures your windows and balcony doors operate smoothly
See the quality of our work through real transformations
Replacement of selective double and triple glazing units to improve energy efficiency or remedy glass breakage
Complete mechanism renewal with modern hardware
Sealing the gaps between the window sill and the window frame to reduce heat loss and air leakage
Complete mechanism replacement with modern multi-point locking system
Replacement of old seals with polyurethane foam that remains stable and does not react to temperature changes, whether in winter or summer.
Replacement of worn hinges and adjustment of window and door hardware to ensure smooth operation and a tight seal.
We work in all major cities, their districts and surrounding towns
We provide window repair services across Lithuania – working in all major cities, their districts and surrounding towns. We perform plastic window repair, window fixing, window adjustment, window sealing and gasket replacement, ensuring tightness and long-lasting results.
👉 In about 99% of cases we solve the problem on the first visit, and the technician's call-out and full window diagnostics are free of charge.
We perform window repair in Vilnius throughout the city and Vilnius district – in Antakalnis, Fabijoniškės, Pašilaičiai, Pilaitė, the city centre and other Vilnius districts as well as surrounding towns. We solve sealing, adjustment and mechanical issues, carry out plastic window repair and glass unit replacement. We also provide window adjustment and window sealing.
👉 Most often we handle everything on the first visit, and the call-out and window inspection cost you nothing.
We perform window repair in Kaunas and Kaunas district – working in Šilainiai, Dainava, Eiguliai, Žaliakalnis, the city centre and other districts as well as surrounding towns. We fix leaking, stuck or misaligned windows, carry out plastic window repair and gasket replacement. We also provide window adjustment.
👉 In about 99% of cases we solve the problem on the first visit, and the technician's call-out is free of charge.
In Klaipėda we perform window repair throughout the city and Klaipėda district – both in the city itself and in Gargždai and other surrounding towns. Due to the coastal climate, window sealing and window adjustment are often needed, so we help restore window tightness, eliminate drafts and improve home comfort.
👉 We come out free of charge, assess the situation on site and most often solve the problem right away.
We provide window repair services in Šiauliai and Šiauliai district – working in Dainiai, Gytariai, Lieporiai, the city centre and other districts as well as surrounding towns. We carry out plastic window repair, window adjustment and window sealing, quickly resolving both minor and more complex faults.
👉 Most often we handle everything on the first visit, and the call-out and diagnostics are free of charge.
In Panevėžys we perform window repair throughout the city and Panevėžys district – working in Kniaudiškės, Rožynas, Pilėnai, the city centre and other districts as well as surrounding towns. We carry out plastic window repair, window adjustment and gasket replacement, ensuring quality and long-lasting results.
👉 We come out free of charge and most often solve the problem on the first visit.
Original window parts only from trusted manufacturers — that's why we can offer up to 5 years warranty
Everything you need to know about our window and door repair services