Roof Maintenance & Liquid Systems
Planned maintenance, rapid repairs and cold-applied liquid overlays that protect the fabric and extend roof life.

The cheapest roof problem is the one caught early. Our planned, preventative maintenance keeps the building envelope watertight and spots small issues before they become expensive ones.
When a roof is tired but sound, a cold-applied liquid overlay, as on our Liquid Roof Overlay project, refurbishes it without a costly full strip-off.
Roof maintenance is vital to prolong the life of your roof coverings and minimise the risk of water ingress. Buildings with little or no maintenance often face health-and-safety claims and costly repairs from avoidable damage.

What’s included

Planned roofing maintenance
Regular roof maintenance is proven to save money and protect your roof investment. Cornerstone Group provides planned and reactive roof-maintenance packages to agreed SLAs, including industrial gutter-lining systems.

Highly trained professionals
We operate a fleet of high-level access vehicles crewed by trained roofing professionals and equipped with the latest rapid-repair materials to deliver high-quality reactive repairs across the UK.
Seen in our projects.
Protecting the envelope.
Cladding, sheeting and roof systems on working commercial, agricultural and industrial buildings.






Guides and project stories.
GuidesAsbestos cement roofs: your options for removal, over-cladding and re-roofingOptions for ageing asbestos cement and fragile roofs: removal, over-cladding and re-roofing, how safety is managed and how to add solar.Read the article
GuidesShould you re-roof before installing solar? The case for doing both togetherWhy roof condition matters before solar, how a combined roof and solar project works, and the warranty when we fit the roof and the solar.Read the article
Project spotlightProject spotlight: Booker Watford roof and solarHow a roof that was due for replacement became the platform for a 334 kWp solar array at Booker Watford, with a 3.1-year payback.Read the article Power your business with solar.
Our renewables team designs, installs and maintains commercial solar, storage and EV charging across the North West and the UK.
Roof maintenance questions answered.
Can't see your question here? Our team is happy to talk it through.
Why invest in planned roof maintenance?
Regular maintenance prolongs the life of your roof coverings and minimises the risk of water ingress. Buildings with little or no maintenance often face health and safety claims and costly repairs from avoidable damage.
Do you offer maintenance packages with agreed response times?
Yes. We provide planned and reactive roof maintenance packages to agreed SLAs, including industrial gutter-lining systems. Get in touch and we will shape a package around your buildings.
Can you respond to urgent roof leaks?
We operate a fleet of high-level access vehicles crewed by trained roofing professionals and equipped with the latest rapid-repair materials, delivering reactive repairs across the UK. Our service includes leak detection and repair.
When is a liquid overlay the right option?
When a roof is tired but sound, a cold-applied liquid overlay refurbishes it without a costly full strip-off, as on our Liquid Roof Overlay project. A survey will confirm whether your roof is suitable.
What does a maintenance visit cover?
Our work covers roof inspections and surveys, gutter clearance and repairs, leak detection and repair, cold-applied liquid waterproofing, and new rooflights and detailing. A site survey is the best place to start.
Let's talk about your next project.
One call reaches the whole group. Tell us what you need and we'll bring the right teams together.









