VENTILATION
IMPROVE THE QUALITY OF AIR INDOORS AND SAVE ENERGY
UNDERFLOOR HEATING
IMPROVE THE COMFORT OF YOUR HOME WITH ENERGY EFFICIENT HEATING
INSULATION
HIGH-PERFORMANCE INSULATION FOR USE IN ROOFS, WALLS & FLOORS
Featured Products
View Our Top Sellers
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HRVU DHV-04/100B Heat Recovery Ventilation Full System Condensation Control
£276.00 – £539.69 Inc. VAT
Testimonials
Our amazing customer reviews.
David Lavis
Trust Pilot
"Fantastic customer service.
Polite and friendly staff.
The system I bought also works fantastically well.
Could not fault anything"

Nick
Project Manager
“I’ve just taken delivery of the SF40 for the second phase of our extension. I have to say I am very impressed with the product, it was so much nicer to work with after the mess and hassle of getting foam board in between the rafters. If we were to start again I would look to put the foil above and below the rafter and avoid the foam board altogether.”

Sarah Jones
INTERIOR DESIGNER
Excellent technical help, with no effort. Simply how it should be done, but it's rare to experience it. Thanks.

Interested In What We Do?
Shop.Boulder is the online shopfront for Boulder Developments Ltd. Boulder Developments are an experienced international manufacturer and distributor based in the UK. If you have any questions about what we sell feel free to contact us.