You've lubricated your windows and enjoyed smooth operation for a couple of weeks – but after 2–3 months they're sticking again. Our technician Andrius explains why standard oil lubricant doesn't fix the problem but only delays it, and which lubricant actually works.
You've lubricated the window fittings and enjoyed a couple of weeks of smooth operation – but after 2–3 months you're back to the same problem: the mechanism sticks and the window is hard to open. Why?
Our technician Andrius has noticed a clear pattern over many years of practice: the problem is usually not the lubricant as such, but the wrong choice of lubricant.
Oil-based aerosols and lubricants are popular for a simple reason – they are sold in every hardware shop and everyone knows them. But inside window fittings, they cause the problem rather than solving it.
Here's what happens: the oil lubricant initially reduces friction. But after a few weeks it starts collecting dust and fine dirt particles. A thick, sticky mass forms – and the mechanism becomes even harder to move than it was before lubrication.
Andrius visited a client whose fittings had been lubricated about 6 months earlier. The picture was telling: the mechanism moved as if through rubber, and thickened lubricant with trapped dirt was visible inside. All because of the wrong lubricant.
Important: These lubricants are only suitable for external points – hinge bolt heads, key holes. Never spray them inside the fitting mechanism.
GreenteQ lubricant is designed specifically for window and door fittings. Its operating principle differs fundamentally from standard lubricants.
Initially it is liquid – this is important, because the liquid form allows it to penetrate fully into every part of the mechanism. After a few hours the liquid components evaporate, leaving only one thing: PTFE (Teflon).
PTFE is one of the most slippery technical materials in the world. Teflon:
Compare: oil lubricants theoretically need to be reapplied every 2–3 months – and even then the situation gradually worsens. GreenteQ – once a year or less.
A simple experiment: take two sheets of paper and spray GreenteQ on one, a standard oil lubricant on the other. The next day, rub with your finger.
The GreenteQ-treated sheet will have only a smooth, dry coating – nothing sticks to it. The oil lubricant sheet will be sticky and will collect dust and fluff. This difference shows exactly what will happen inside your fittings after a few months.
If your windows are sticking despite previous lubrication – there is a high probability that a sticky mixture of oil residue and dust has accumulated inside. In this case, simple lubrication will no longer help: the old lubricant must first be cleaned out, and only then can fresh lubricant be applied.
Our technicians complete the full cycle in a single visit: they clean out the old lubricant, lubricate the mechanisms with the correct lubricant, and adjust the fittings for the season. We provide a guarantee on all work.
Windows sticking or hard to operate? A technician will come, clean, and lubricate – the job is done in a single visit.
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We serve Vilnius, Kaunas, Klaipėda, Panevėžys, Šiauliai and all of Lithuania
Professional reliability you can trust
Quick response when you need it most
Up to 5 years
Competitive prices
Professional solutions for all your window and door needs
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.
Real feedback from our satisfied customers
"Incredibly professional and fast service. The technician fixed our window in under an hour. Highly recommended!"
"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
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
Window Repair in Vilnius
Window Repair in Kaunas
Window Repair in Klaipėda
Window Repair in Šiauliai
Window Repair in Panevėžys