The benefits of authentic period glass
There’s simply no substitute for genuine period glass. Replacing glazing in a period property doesn’t happen often – and it deserves to be done right. And it could make all the difference when it comes to planning permission.
One of the most noticeable feature of a historic building is its glass – and yet it’s also one of the most misunderstood. Both internally and externally, the reflective and refractive properties of any type of glass will make a huge difference to the atmosphere and ambience of a building.
Getting the glass type wrong can jar both the aesthetics of the building and the senses of the viewer. That’s why both our Thin Double Glazing and our MONO single-glazing systems are available in genuine old glass types. This assures you of the perfect period feel, all the way from the Georgian era through to the mid twentieth century.
Maximum pane sizes
All of the glass types we offer are made specially for us, according to original recipes and production techniques. Several of them are hand-made.
Period Glass
| Approximate maximum pane size (mm) |
Square (mm) | Rectangular (mm) |
| D10 & D11 Thin Double Glazing | 900×900 | 700×1100 |
| D12 & D13 Thin Double Glazing | 1100×1100 | 700×1400 |
| MONO Laminate – hand-drawn glass | 1700×1700 | 1200×2500 |
| MONO Laminate – float glass | 1700×1700 | 1200×2500 |
| MONO RT+ (non-toughened) | 1100×1100 | 900×1800 |
| MONO-RT+ (toughened) | 1700×1700 | 1200 x 2500 |
| Any unit made with cylinder glass | 800×800 | Within 800×800 |
Authentic glass-making processes
All of the glass types we offer are made specially for us, according to original recipes and production techniques. Several of them are hand-made.
Beware of imitations
We don’t offer glass which simply mimics the effects of the original production techniques. Our glass is actually made using those same traditional methods. The ream and seed in old glass types have a certain density, frequency and pattern – and they just can’t be copied using newer, more automated techniques.
Embrace the imperfections
Because our cylinder glass, hand-drawn glass and machine-drawn glass are authentically made, they have the same characteristics as ‘old’ glass. This means they carry the same imperfections, too; they may feature bubbles, fold marks and waves. These imperfections are an integral part of the character of the glass – and therefore an integral part of the character of the building, too.
Choose your replacement glazing unit
Thin Double Glazing from 10mm to 13mm in thickness
MONO single glazing for where Thin Double Glazing can’t be fitted.