At Highseal we manufacture beautiful, strong and "Secured by Design" WarmCore Aluminium folding sliding doors. These are available in a range of sizes, from 1 to 7 sashes.
As standard they come with triple glazing providing the ultimate in thermal performance. The profile contains a hidden orange thermal core which makes our doors 25% more thermally efficient than the more traditional Aluminium systems.
Our doors stack neatly in place for maximum impact, with inward or outward opening, and can be supplied up to 6m wide.
This innovative design comes with a choice of sash options, handle finishes, a variety of colours, styles and configuration options.
All our Aluminium bi-fold doors come complete with a 10-year product guarantee, supported by the ERA Five Star security guarantee.
We are on hand to help you choose the perfect warm, secure and beautiful WarmCore bi-folding door for your home.
Stainless Steel to resist corrosion and tough extruded Aluminium hinges.
These are precision engineered to perform perfectly every time.
These have a 200KG load capacity but WarmCore still ensures a smooth operation.
The 10-year guarantee covers materials, surface finish and operation.
This is on all sash interlocks ensuring exceptional weather performance, keeping drafts and wind-driven rain outside.
Run-through rubber gaskets create continuous weather-seals helping WarmCore to comfortably exceed the requirements of BS6375-1: the classification for weather tightness on windows and doors.
Our bi-fold doors are available with a range of threshold options. For example ultra low Part M compliant Aluminium thresholds which help to avoid trip hazards. Alternatively you could have a step down from your door opening with an outer frame, 120mm integrated sill, 150mm sill or low Aluminium threshold.
The WarmCore door combination ranges from a single or French door, from 2-door to 7-door bi-fold.
Meet the Highseal next generation in Aluminium Patio Doors. These doors are sleek, stylish and offer a flawless operation. Using the the same innovative full-width thermal core technology like our bi-folding doors meaning a highly efficient product.
Super Smooth 10 Wheel Roller
A unique, high-quality wheel-set with each sash running on 10 self-levelling rollers giving you ultra-smooth reliable performance.
Innovative Bi-Directional Lock
Designed to our exact specifications, a bi-directional lock createing a tangible sense of security homeowners love.
Exceptional Thermal Performance
The Warmcore full-width thermal core in the sashes give a double glazed U-value of 1.4. In addition the triple glazed has a U-value of 1.0 giving a market-leading thermal performance with the desirability and consumer appeal of aluminium.
Glass options are available for our aluminium products including standard low-e glass, celsius glass, triple glazed or laminated.