We manufacture bespoke double and triple glazed units in‑house, supplying installers, builders, architects, and homeowners with high‑quality sealed glass units made to exact specifications. As a specialist double glazed units manufacturer, we focus on precision, consistency, and reliable turnaround.
Because we handle sealed unit manufacturing ourselves, we can produce made‑to‑measure glazing, including non‑standard sizes, oversized units, and specialist glazing that many suppliers can’t accommodate. As a result, whether you need a single replacement sealed unit or glass for a complex build, you receive dependable manufacturing backed by decades of hands‑on experience.
Looking to source manufactured glass units?
👉 Request a manufactured unit quote and speak directly with our team about your requirements.
All of our sealed units are manufactured in‑house, which means we retain full control over quality, tolerances, and turnaround times. This allows us to support both straightforward replacements and technically demanding projects.
We manufacture:
Our units can be produced with a range of glass types, coatings, and spacer options to suit performance, safety, and aesthetic requirements.
While every unit is made to order, common specifications include:
Oversized and non‑standard glazing is where in‑house manufacturing really matters. We regularly produce large-format sealed glass units for projects that fall outside typical off‑the‑shelf limits.
This includes glazing for:
If you’ve been told a unit isn’t possible, it’s worth speaking to us — we’re often able to manufacture solutions others won’t attempt.
(See also: Rooflight Glazing Services)
We manufacture rooflight and flat roof glazing units, supplying the glass component for a wide range of rooflight systems.
Our rooflight units can be specified with:
These units are suitable for flat roofs, extensions, and modern architectural designs where safety and performance are critical.
(See also: Obscure & Textured Glass)
For bathrooms, entrances, and privacy‑sensitive areas, we manufacture sealed units using a wide selection of obscure and textured glass.
Options include:
This allows you to maintain light levels while meeting privacy or design requirements.
(See also: Leaded & Decorative Glass)
We also manufacture encapsulated leaded double glazed units, combining traditional aesthetics with modern thermal performance.
These units are ideal for:
Encapsulation protects the leaded design while maintaining the benefits of a sealed unit.
We use high‑quality glass from trusted manufacturers, including Pilkington, Saint‑Gobain, and other leading suppliers. This ensures consistent performance, clarity, and durability across all units we produce.
Manufacturing in‑house allows us to:
We manufacture sealed glass units for:
Whether you’re ordering regularly or sourcing a one‑off unit, we offer the same level of care and attention to detail.
Colourglass Glazing and Manufacturing has been a family‑run business for over 30 years. Our experience in glass manufacturing is built on long‑standing industry relationships, practical knowledge, and a reputation for reliability.
If it’s glass, we can usually make it — and if we can’t, we’ll point you to someone reputable who can.
If its in glass, we can likely make it for you, and if we can’t we will know a reputable company where you can.
