Reynaers Aluminium Windows & Sliding Doors
The industry benchmark for quality, thermal performance, and sleek design. Precise measurement and installation of MasterLine 8, CP 130, and Hi-Finity systems across Windsor, Berkshire and London.
Why Reynaers is the Prestige Choice
The “prestige” label attached to Reynaers isn’t just about the price point — it’s rooted in Belgian engineering and a heritage of innovation.
Architectural Versatility
MasterLine 8 comes in Functional, Renaissance, Deco, and Block variants to match any home’s character.
Industry-Leading Thermal Performance
Options reach Passive House standards, with low-emission insulation bars for lower energy bills.
Precision Engineering
Lift-and-slide mechanisms move hundreds of kilograms of glass with the touch of a finger.
Our Reynaers Product Range
MasterLine 8
Our most versatile window system. HI+ variant achieves U-values as low as 0.85 W/m²K, with RC2/RC3 burglar resistance ratings.
CP 130
Lift-and-slide doors ideal for extensions. Flush thresholds and open-corner configurations for a dramatic, unobstructed opening.
Hi-Finity
The ultimate “glass wall” — a concealed frame leaving just a 35mm interlock visible. Supports panels up to 750kg, with optional motorisation.
MasterLine 8: Technical Specifications
| Metric | Performance |
|---|---|
| Insulation | Standard, HI, HI+ — U-values as low as 0.85 W/m²K |
| Water-tightness | Tested up to 900 Pa |
| Wind load resistance | Up to 2000 Pa |
| Security rating | RC2 and RC3 burglar resistance |
Material Showdown: How Reynaers Compares
Reynaers vs. Cortizo: Reynaers is the more robust “prestige” choice with better thermal metrics, while Cortizo offers exceptional slim sightlines at a more accessible price point.
Aluminium vs. uPVC and Timber: Reynaers aluminium is preferred for a modern, zero-maintenance look. Unlike timber, frames will not warp, rot, or require painting.
Our Installation Process
On-Site Survey
We visit your property to take millimetre-accurate measurements.
Expert Advice
We help you choose the right Reynaers system based on thermal requirements and aesthetic goals.
Professional Installation
Experienced with Reynaers-specific hardware, ensuring a weather-tight and secure finish.
Frequently asked questions
Are Reynaers windows energy efficient?
Yes. The MasterLine 8 and Hi-Finity systems are capable of meeting Passive House standards, drastically reducing heat loss.
How much do Reynaers sliding doors cost?
Costs vary based on the specific system, opening size, and glazing options. We provide clear, no-obligation quotations following an on-site survey.
Is aluminium better than uPVC?
For large openings and modern designs, aluminium is superior due to its strength-to-weight ratio. For certain traditional styles, our uPVC windows remain a highly efficient alternative.
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