Materials for Every Retrofit
PAS2035
Retrofit Projects
In government-funded retrofit, compliance matters. Provincial Seals (PSL) supplies complete PAS-approved systems, most BBA-certified, tailored to the requirements of your funding stream and the specific needs of your project.Retrofit Projects
Contact our design & coordination team
Private
Installations
For private projects, we deliver the best products, at competitive prices, fast. Quotes are provided within a few hours, with options for same-day collection, and nationwide delivery within days. Call our sales team (Mon–Fri, 8am–4pm)
Our Product Range
Cavity Wall Insulation
BBA-approved systems offering outstanding thermal performance for both retrofit and new build projects. We offer CWI18 and CWI34 systems.
Internal Wall Insulation
Choose PSL-designed or SWIP systems – both backed by a 25-year guarantee. We offer SWIP IWI and Wetherby IWI systems.
Room in Roof Insulation
Complete systems combining insulated plasterboards with proven wall insulation solutions. We offer SWIP RIR and Wetherby RIR systems.
Flat Roof Insulation
Designed by PSL professionals, this system was created for the funded retrofit sector. With PIR insulation and EPDM rubber roof covering, the system delivers a robust solution for flat roofs and adheres to building regulations.
External Wall Insulation
Our KIWA-certified Termo Bravo system features EPS boards with acrylic or silicone render options. Combining adhesive and mechanical fixing ensures maximum performance and weather resistance for long-term protection.
Loft Insulation
Various thicknesses from trusted manufacturers Knauf and Isover, plus all ancillaries, including draught proofing, downlight protection and ventilation solutions for complete project delivery.
Ventilation
Mandatory for PAS projects – we'll help you find the right system solution. Our range includes humidity-controlled dMEVs for mechanical ventilation and comprehensive background ventilation options from trickle vents to wall vents, ensuring proper airflow in every insulated building.