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Planitherm windows are designed to keep homes across the North East warm and comfortable throughout the year. A specialist coating on the glass captures warmth from natural daylight, reducing heat loss and stopping up to 56% more internal heat from escaping compared to older double glazed units. With rising energy costs, this makes a real difference to everyday comfort and long-term savings.
Whether installed in new windows, replacement windows, or upgrades to existing windows, Planitherm glazing improves energy efficiency while helping homeowners manage heating costs more effectively.
Energy Benefits of Planitherm
Enjoy extra peace of mind with Planitherm comfort glass. A built-in transparent layer strengthens the glass, making it harder to break through and improving security across windows and doors. For better rest, it delivers up to 20% more noise reduction than traditional double glazed windows, while still preventing excess heat from escaping.
Planitherm glass also blocks 99% of harmful UV rays, helping protect interiors and furniture from fading. When installed in approved frames with secure locks and quality hinges, it can meet the official police-backed Secured by Design standard, giving homeowners extra peace and confidence.
Active Windows
Contact Active Windows today for a free, no-obligation quote and property assessment.
If you’re considering new windows for your home or business anywhere in the North East, speak to Active Windows & Doors today. Whether you’re upgrading double glazed windows, replacing glass in older frames, or planning glazing for new builds, choosing the right glass matters.
As an approved supplier and installer, our trained team provides clear advice to help homeowners, landlords, and commercial clients make the right investment. We offer a wide range of made-to-measure Planitherm glazing solutions suitable for casement windows, sash windows, and bespoke designs
When replacing windows, the glass you choose plays a major role in comfort, security, and appearance. Glass typically accounts for around 70% of a window’s surface area, making it central to light, insulation, and overall performance.
Planitherm glazing helps create brighter interiors while keeping warmth inside. It’s a difference you may not see, but you’ll certainly feel it, whether you’re upgrading a modern home, heritage properties, or listed properties.
From improved warmth to quieter living spaces, Planitherm delivers a perfect solution for residential and commercial projects alike.
For the ideal balance of light, warmth, and performance, Comfort Plus glass offers even greater control. Designed for large glazed areas such as bi folding doors, patio doors, and glazed extensions, it blocks up to 50% of external solar heat while retaining up to 63% more internal warmth.
Comfort Plus offers the same security, noise reduction, and UV protection as standard comfort glass, helping keep rooms comfortable in both summer and winter.
If you’re interested in installing Planitherm windows across the North East, including County Durham, Newcastle, Chester le Street, Bishop Auckland, or Stockton on Tees, get in touch with Active Windows & Doors today.
We specialise in the supply and installation of high-quality glazing for windows, doors, conservatories, and composite doors, delivering a professional service with minimal disruption. Every project is carefully planned and completed with pride, quality, and attention to detail.
