Bay Window Insulation

We've created the Breatheasy system to make internal wall insulation safer, simpler and quicker. Built using UK grown hemp and installed using pre-fabricated, thermal studs, it's designed specifically for solid-wall retrofit — the kind of project where standard IWI details create cold bridges, trap moisture, or take twice as long to fit properly.

✔ 2-5 day installations per bay window, depending on size and shape.

✔ All in one external service.

✔ Eliminates draughts and cold spots

✔ Natural materials good for your home.

The problem:

What’s behind my bay window?
Why is my bay window cold?
Why is my bay window crooked?

Carefully designed and developed by energy efficiency specialist through an experience team

Insulation grown in Yorkshire.

Cladding Options

Tiles (Replacement)

Prefer tile cladding if you’d like to keep the traditional look of your bay window and make sure it fits naturally with the rest of the street. It’s a simple way to create a cohesive look while adding a little character.

Based on 7sqm: approx. £2950

Larch Vertical Timber

Internal wall insulation was applied to one room in this terraced home to manage disruption. After a quick install the client moved back into the room and found the space transformed.

Based on 7sqm: approx. £2750*

*Price does not include any planning or regulatory costs

Cork

Internal wall insulation was applied to one room in this terraced home to manage disruption. After a quick install the client moved back into the room and found the space transformed.

Based on 7sqm: approx. £3500

Benefits

  • Purpose-built for solid-wall retrofit, not adapted from a new-build spec

  • Vapour-open materials that let the existing wall breathe — reducing the risk of trapped moisture and damp

  • Thermally broken detailing designed to close the gap between "as-designed" and "as-built" performance

  • Developed and installed by Wrapt's own team — not a third-party product we're just fitting

Cross-section before and after

  • U Value improvement: 5x better

    Please get in touch for any other technical details or questions at info@wrapt-homes.co.uk

Technical Details

FAQs

  • The Bay Window system costs..

  • Our team and workshop is based in Leeds but we are able to service almost the whole of Yorkshire with projects in York, Ilkley, Harrogate, Kirklees, Sheffield and Bradford.

  • The external finish can be tailored to your preference, with options including tiles, vertical cladding or cork, subject to any area constraints.

Get in touch.

Get in touch to find out more, or if you’re interested in learning more or getting a quote for Breatheasy system in your home please include an image of the wall/s you’d like to insulate with dimensions and we’ll provide you with an estimate.