
CLASICTHERM Windows in Białystok — the Economy uPVC Line
CLASICTHERM is our entry-level uPVC window option for those on a tighter budget. A 6-chamber profile, a 70 mm frame and a flexible choice of glazing unit — from Uw 0,94 W/m²K to the economy version at Uw 1,4 — let you match the window to your needs and costs.

CLASICTHERM — Key Specs
CLASICTHERM is the economy uPVC window line for those who want to replace their joinery on a tighter budget and not overpay for figures they won't use. A 6-chamber profile with a 70 mm frame and a 70 or 80 mm sash gives a solid base, while the warmth is decided by the chosen glazing unit.
It is still far warmer than the old joinery it usually replaces. CLASICTHERM works well in utility rooms, but also in whole houses where the budget is smaller and the priority is sensible insulation at a reasonable price.
Flexible Glazing Unit — Two Versions
The biggest advantage of CLASICTHERM is the flexible choice of glazing unit — you decide how much you want to invest in insulation. Two versions are available, and they translate directly into the warmth of the whole window.
- 40 mm unit, Ug 0,6 W/m²K → Uw = 0,94 W/m²K — the warmer version, a good compromise of price and insulation for living spaces.
- 24 mm unit, Ug 1,1 W/m²K → Uw = 1,4 W/m²K — the most economical version, sensible for utility rooms and wherever cost matters above all.
This way one line covers the whole house — in the rooms you fit the warmer 40 mm unit, and in the garage, boiler room or utility room the cheaper 24 mm unit. If maximum warmth matters to you, compare CLASICTHERM with the warmer uPVC windows in our range.
Who Is the CLASICTHERM Line For?
CLASICTHERM is a budget choice, but a considered one. In Białystok and the surrounding area it often works well where many windows have to be replaced at once and the total cost matters.
- A tighter budget — sensible insulation without paying extra for passive-class figures.
- Utility rooms — garages, boiler rooms, spaces where price matters above all.
- Whole houses on a smaller budget — in the version with the 40 mm unit (Uw 0,94) for living spaces.
- Rental investments — a reasonable ratio of price to quality.
MACO MULTI-MATIC hardware with a wind-resistant catch gives comfortable operation, and there are over 30 veneer designs to choose from, so even the entry-level option needn't be a dull white window. During the survey we'll help match the unit to each room.
Fitting, Warranty and Instalments
Even an economy window is worth setting well — the seal and comfort depend on the quality of the fit, whatever the profile costs. That is why we fit CLASICTHERM with our own Pro-Plast crew, with care for the seal and the finish.
We begin our cooperation with a free on-site survey and a free written quote, and the purchase can be spread over instalments — often the deciding factor when the budget is tight. As a local Białystok firm we give a 5-year warranty and aftercare. Book a free survey and check how much a window replacement in the CLASICTHERM version costs.
Frequently asked questions
What Uw rating do CLASICTHERM windows have?
How do the two glazing units in CLASICTHERM differ?
Who is the CLASICTHERM line for?
What hardware and colours does CLASICTHERM have?
Can CLASICTHERM windows be bought on instalments?

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