Certified Extol installers fit windows and doors in accordance with professional standards — from preparing the opening to final adjustment and handover.
Before installation, we check the dimensions of the opening and the alignment of the reveals. Where necessary, we prepare the walls to ensure precise installation.
We position the window or door in the opening, level it on every axis and temporarily secure it before permanent fixing.
We fill the space between the profile and wall with PU foam and finish the outside with sealing tape and silicone.
We adjust the hardware, test opening and closing, clean the work area and hand the property back in good order.
Even the highest-quality window will not perform properly if it is installed incorrectly. Poor installation leads to air and water leaks, condensation, difficult opening and a loss of thermal insulation.
Extol installers receive regular training from profile and hardware manufacturers. Every installation follows a technical protocol that ensures watertightness, thermal insulation and the correct operation of all mechanisms throughout the guarantee period.
Our installation guarantee is valid for two years and covers any installation faults involving sealing, levelling and hardware adjustment.
How long does it take to install one window?
A standard-sized window takes 30–60 minutes to install. A complete apartment with six to eight openings is typically finished within one business day.
Do you remove the old windows and doors?
Yes. Removal of the old joinery and disposal of the waste are included in the installation service at no extra cost.
When can I use the room after installation?
Immediately after the work is completed. Silicone reaches full strength after 24 hours, so we recommend that you do not leave windows tilted open during the first night.
Do you install in apartment buildings?
Yes. We have experience working in apartment buildings, including lifts, upper floors and narrow corridors. We coordinate the delivery of materials with the building manager.
Configure
Prozori | Balkonska vrata
Ulazna vrata
Ulazna staklena vrata
Podizno-klizni sistem
Paralelno-klizni sistem
Zaštita od sunca
Zavese
Žaluzine
Zaštita od insekata
Podprozorske daske
Okapnice
Garažna vrata
Senzor vrata
Zastakljivanje