Why This is the Year to Bin the Old Glass Habits and Get Smart With Your Glazing

Let’s start with a quick question: When was the last time you looked at your glazing spec and thought, “Yes — this is genuinely doing something for performance, comfort and carbon?”

If the answer is “well… it meets regs” — then we need to talk.

The Gap Between ‘Compliant’ and ‘Comfortable’

Let’s be honest. The glazing industry is full of buzzwords: “high performance,” “eco-friendly,” “triple this, laminated that.”
But when push comes to shove, most units still force you to choose between weight, performance, and frame compatibility.

What does that mean in real terms?

• Developers settle for ‘just enough’ to scrape through EPCs

• Architects compromise design intent for deeper profiles or bulkier frames

• Homeowners install triple glazing, then crank the heating anyway

Meanwhile, the cost and carbon burden ticks up.

Enter C.U.in™ — A Smarter Glazing Solution for 2026 Projects

Here’s what we do differently at Crystal Units:
We engineered out the compromise.

C.U.in™ is our answer to the performance question that’s been dodged for too long. Using a suspended film inside the unit, it effectively creates triple-glazing levels of insulation — without the extra glass.

And the best part?
It fits straight into your existing double-glazing frames.

So instead of redesigning façades, upgrading hinges, or speccing in bulkier profiles, you get the performance without the penalties.

How It Performs — By the Numbers:

• U-values down to 0.2 W/m²K

• Up to 45% reduction in heating demand over traditional DGUs

• Fully recyclable, lower weight and up to 36% thinner than triple glazing

• Proven energy savings in Salford Energy House tests

• Backed by independent lifecycle analysis from Hilson Moran

• Used in real-world projects like The Arc, The Forge, Watergate, and Elmsbrook House

Why You Should Care in 2026

Because this year is different.

There’s growing pressure from:

• Stricter Part L & Part O standards

• Net zero targets for domestic and commercial buildings

• End users who expect sustainable choices by default

And glazing plays a critical role — not just in tick-box compliance, but in actual energy use, thermal comfort, and occupant wellbeing.

If you’re in the business of designing spaces for the future, then what’s in your windows shouldn’t be an afterthought.

Let’s Talk About Your Project

Whether you’re:

• Planning a new residential build

• Retrofitting for EPC improvements

• Designing commercial spaces with a low-carbon spec

• Or just fed up with overengineered triple glazing

We’re here to help.

🔗 Get in touch today — and let’s make your 2026 project a little sharper, a little warmer, and a whole lot smarter.