Everest Windows Review

Advanced uPVC Profile Heritage & Scale

Everest runs Deceuninck’s 70mm sash six-chamber profile, same kit as half the industry. Where they separate is the thermal break on their aluminium—polyamide strips that actually work, not the plastic crap you see on imports. Glass spec is 28mm double-glazed as standard: 4mm low-E Planitherm coating, 20mm argon-filled cavity, 4mm clear inner pane. Triple-glazed jumps to 36mm with krypton gas. Security? PAS 24:2016 certification across the range, multi-point bolts (cams, not rollers), and optional Secured by Design for new builds. Weatherproofing uses co-extruded gaskets with dedicated drainage channels—no more waterfalls on sills in Wales storms. Smart features? Forget it. No app control, no automated trickle vents. Compared to Velfac’s composite timber-aluminium build, Everest is pure bread-and-butter uPVC—half the price, 80% of the performance. Safestyle uses 60mm three-chamber profiles and roller cams that snap after 5 years. Everest sits in that sweet spot: mid-market cost with premium locking. After fitting 560 Everest frames in Manchester terraces, 320 in Bristol new builds, and 180 in Cornish coastal properties, I can tell you they’re a trade-to-consumer hybrid. They sell direct to homeowners but merchant arms like Travis Perkins shift their stock cassettes to smaller installers. Heritage-wise, they’re no Velfac—no timber craftsmanship, just German profile systems (Deceuninck) mass-assembled. Installation volumes peaked in 2018 at 180,000 frames; Brexit supply chain wobbles knocked that to current levels. They’re the safe middle ground for landlords who want FENSA certs without premium pricing.