With the arrival of summer, flat and office owners in Estonia face the same problem: floor-to-ceiling windows turn their premises into a greenhouse. Air conditioners start running non-stop, and electricity bills soar. Window film is not just a decorative feature, but a high-tech solution that reduces cooling costs and pays for itself within a year and a half to two years.
Let’s take a look at the „mathematics of comfort“ below and find out why film is more effective than conventional curtains or blinds.
The physics behind it: why don’t blinds help?
Many people try to beat the heat by closing thick curtains or blinds. However, from a physics perspective, this is not very effective. The solar energy has already penetrated the glass, and the curtains simply trap it inside the room, gradually heating up and acting as a sort of „battery“.
Sun protection film works differently. Thanks to its multi-layer coating (often containing metals), it reflects up to 80% of thermal energy before it even enters the room. As a result, the temperature in a room without air conditioning drops by 5–8°C.
Let’s look at the savings: facts and figures
The main question on every property owner’s mind is: „When will it pay for itself?“.
Let’s do the maths:
- Reduced load on the air conditioning system:
When high-quality reflective film is installed, the load on the air conditioning system is reduced by 30–50%. The air conditioning system takes much less time to reach the set temperature and needs to switch on less frequently to maintain it. - Energy savings:
On average, over a single active summer season in Estonia, the savings on electricity in a 50 m² office can range from €150 to €300. - Extended equipment lifespan:
The air conditioner operates in a low-wear mode, which means that servicing and the replacement of expensive filters or the compressor will be required much later.
Additional benefits that are difficult to quantify in monetary terms
As well as saving you money, a sun protection film serves a number of other important purposes:
- Protecting your interior from fading:
The film blocks up to 99% of UV rays. Your curtains, parquet flooring and furniture will retain their original colour for years to come. - No glare:
No more being ‘blinded’ when working at a computer or watching TV. - Privacy:
The mirror effect protects your privacy from prying eyes from the street during the day.

Professional installation is key to a good return on investment
To ensure the film performs as effectively as possible and does not start to bubble after six months, correct installation is absolutely essential. At aknakile24, we use only certified materials designed to last for 10–15 years. We will select the optimal light transmission coefficient to keep the room cool whilst maintaining natural light levels.
👉 Find out the cost of installation and choose the right solution:
Installation of sun protection film on windows in Estonia
Frequently Asked Questions (FAQ)
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Won’t the flat be too dark once the film has been applied?
Modern window films come in various shades. We offer options that are virtually invisible to the naked eye, yet effectively reflect heat. The choice depends on your preferences.
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Is it possible to apply window film just for the summer and remove it in winter?
The film is designed to last for many years. It is also beneficial in winter, acting as an additional layer of insulation and reducing heat loss through the glass (the thermos effect).
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Is the film suitable for modern selective double-glazed units?
Yes, but in such cases we select special types of film designed for outdoor installation to avoid the risk of thermal shock (glass cracking due to overheating).
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How should you care for windows with film?
No special care is required. The windows can be cleaned using standard non-abrasive cleaning products and a soft microfibre cloth.