PERFECTHERM Windows in Białystok — the Warmest uPVC Line

PERFECTHERM — Key Specs

PERFECTHERM is the warmest uPVC window line in the Pro-Plast range and the natural choice when you want to cut heat loss to the absolute minimum. A class A profile, 6-chamber, with a deep 80 mm build and a thick triple-glazed unit, it reaches a Uw from 0,78 W/m²K — a top-shelf figure on the window market.

The deep 80 mm build in the frame and sash makes room for a wide 48 mm unit at Ug = 0,5 W/m²K, while the 6 chambers in the profile improve the insulation of the frame itself, not just the glass. As a result the whole window — not only its best part — holds the heat exactly as the label states.

Who Is the PERFECTHERM Line For?

PERFECTHERM makes sense wherever every kilowatt-hour counts. In Białystok and across the Podlasie region the heating season drags on for months, so the warmest window pays back the difference in price fastest through a lower bill.

• Energy-efficient and low-energy homes — when you design a building for low heat demand, Uw 0,78 W/m²K fits those assumptions.
• Replacing old joinery — you feel the difference in comfort and in the bill from the very first winter.
• Large glazing on the cold side — north, east, spots exposed to wind, where an ordinary window can „pull” cold in.
• An investment for years — when you don't want to come back to the subject of windows at the next rise in energy prices.

If you are building or renovating with low bills in mind, this is the line for you. If the budget is tight, we'll point you to cheaper options — compare all the uPVC windows in our range.

Hardware, Colours and Veneers

It is the hardware that decides a window's everyday comfort. PERFECTHERM runs on MACO MULTI-MATIC hardware with snap catches and lift devices, which make closing even large, heavy sashes easier and let you use the tilt-and-turn function smoothly.

You choose the looks separately from the insulation. The profile core colour comes in white, anthracite, brown and caramel, so the window looks consistent in the reveal too. On top of that we offer over 30 veneer designs — from wood-effect to plain colours — so you can match the window to the façade and the interior independently.

It's worth settling the colour together with the sills and roller blinds. Once we've matched your windows, we'll suggest coordinating extras in a matching palette, so the whole façade works together.

Fitting, Warranty and Instalments

The warmest window, badly fitted, stops being the warmest — poor foam or skipped insulation where it meets the wall can undo the good figures on the label. That is why we fit PERFECTHERM with our own Pro-Plast crew, with a warm, airtight fit and a careful finish.

We start with a free on-site survey and a free written quote, and the purchase can be spread over instalments. As a local Białystok firm we provide aftercare and a 5-year warranty — if an adjustment is needed, we are right on hand. Book a free survey and find out the exact PERFECTHERM price for your home.

Frequently asked questions