The UK's leading commercial spray foam experts.
Warehouses, factories, stadiums, hospitals and farms — ThermoFoam is the dedicated commercial spray foam insulation specialist, delivering Enverge systems specified, installed and warrantied by one expert team.
Trusted on projects for
Named UK projects delivered
Product warranty
Years' specialist experience
Nationwide coverage
The high-performance way to insulate any commercial building
Unlike pre-manufactured boards and rolls, spray foam is manufactured in-situ and bonds directly to the substrate as it cures — sealing every gap, fixing to corrugated, concrete, metal and asbestos surfaces, and taking up far less space.
- Airtight thermal performance that lasts the life of the building
- Stops condensation and corrosion on metal and asbestos roofs
- Fast to install — minimal downtime for live operations
- Adds structural rigidity and strong adhesion with very little waste
Before & after — drag to compare
From a cold, condensation-prone roof to a sealed, insulated, anti-condensation finish in a single application.
Before
After · ThermoFoam
Spray foam insulation for every commercial challenge
One material, applied to the trickiest substrates for airtight thermal performance that lasts.
Warehouse & Industrial
Closed-cell Nexseal LE for distribution centres and industrial units — fast install, minimal downtime.
Learn more →Asbestos Encapsulation
Non-licensed, manufacturer-certified encapsulation that locks down fibres and stops condensation in one pass.
Learn more →Concrete Soffits
Eliminate cold-bridging and condensation on car-park and podium soffits — as at Derriford & The Box.
Learn more →Agricultural
Anti-condensation insulation for barns, grain stores and livestock sheds on cement-fibre or metal.
Learn more →Anti-Condensation
Stop drip and corrosion on metal and asbestos roofs — the most cost-effective fix on the market.
Learn more →Leisure & Pools
Humidity and heat-loss control for pool halls and leisure buildings — as at Newport Leisure Centre.
Learn more →Spray foam is all we do — so we cover every application:
University Hospital of Wales
ThermoFoam delivered a low-odour spray foam installation inside a live healthcare environment — controlling condensation and improving thermal performance with minimal disruption to a working hospital.
Named-client projects no competitor can match
Real buildings, real clients, real results — the depth of project evidence that sets ThermoFoam apart.
Derriford District Centre
Spray foam insulation for a busy public-sector building in Plymouth.
Depot Events, Cardiff
Closed-cell spray foam across a large warehouse-style events venue.
Ibstock Brick
Concrete drying-chamber insulation for a temperature-critical manufacturing process.
Newport Leisure Centre
Pool-hall insulation controlling humidity and heat loss in a public building.
Penventon Park Hotel
Spray foam insulation for a Cornwall hospitality and leisure venue.
The Box, Plymouth
Concrete soffit spray foam eliminating cold-bridging and condensation.
Deep experience where it counts
We don't claim to do everything — we lead in the sectors where our project track record is unmatched.
Healthcare & Public
Hospitals, NHS centres and leisure — low-odour, fire-compliant, minimal disruption.
Food & Agriculture
Creameries, farms and processing — hygienic closed-cell, condensation control.
Education & Leisure
Colleges, sports halls and pools — large-span roofs, fast turnaround.
Industrial & Heritage
Warehouses, studios and specialist structures where foam is the only practical fix.
Spray foam vs traditional insulation
Spray foam done properly — and proven on paper
Bad spray foam makes headlines. Ours is correctly specified for your substrate, and handed over with the documentation surveyors, lenders and warranty providers expect.
Full handover documentation
RAMS, product data sheets, depth/coverage records and a complete project handover pack for every installation.
Enverge systems
Enverge Nexseal LE & Sucraseal are independently tested and certified to BS EN 14315-1 for use.
25-year product warranty
Manufacturer-backed warranty on every system, with the paperwork to support sale, survey or refinance.
Condensation risk analysis
We assess dew-point and condensation risk up front so the system is right for the building — not just sprayed on.
Approved, trained applicators
Installed only by ThermoFoam-approved contractors, trained and supported on the Enverge systems.
Surveyor & lender ready
Clear records that answer the questions surveyors and lenders ask — so spray foam is an asset, not a question mark.
From enquiry to warranty — one team, start to finish
Enquire
Tell us about your building and project.
Specify
We design the right system for your substrate.
Price
A clear, fixed budget — no surprises.
Install
Approved applicators, clean and fast on site.
Warranty
Backed by a 25-year product warranty.
Enverge spray foam, sustainably made
Nexseal LE — Closed Cell
Low-exothermic, high-lift closed-cell foam. Exceptional thermal performance, improves structural integrity, manufacturer-certified (Agrément 09/4610), HFO blowing agent. Ideal for warehouses, soffits and asbestos encapsulation.
Durability & warranty →Sucraseal — Open Cell
Breathable, vapour-open open-cell foam for internal walls, ceilings and acoustic. λ 0.039 W/m·K, BS476 Part 7 Class 1 (uncoated), ICC AC377 Appendix X.
Technical specification →Certified to the standards that matter
The spray foam specialist within the Duratite Group of Companies
ThermoFoam is the dedicated spray foam insulation brand of the Duratite Group — alongside Duratite Building Products (specialist supply) and Duratite Projects (supply & install). Every project is backed by the technical depth, manufacturer-certified product supply and manufacturer-backed warranties of the wider group.
Trusted by the people who run the buildings
"Professional from survey to sign-off. The team worked around our live operation with zero disruption and the finish is excellent."
"They specified exactly the right system for our roof and delivered on time. The condensation problem we'd had for years is gone."
"Genuinely knowledgeable about compliance and fire ratings — exactly what we needed for a public building."
UK-wide delivery, with deep South West roots
From our Cornwall base we deliver projects across the whole of the UK and Ireland through our team and network of approved applicators — with unmatched experience across the South West.
Join the ThermoFoam approved network
We supply our Enverge spray foams to approved contractors across the UK and Ireland — with training, CPDs, technical support, site visits and ongoing marketing support.
Spray foam, explained by specialists
Corrugated roof spray foam insulation — UK guide
How closed-cell foam solves condensation and heat loss on corrugated and asbestos roofs.
How to stop condensation on commercial roofs
The dew-point mechanism behind roof drip — and how to stop it at source for good.
Spray foam vs PIR board & mineral wool
An impartial comparison on air-sealing, coverage, condensation control and fit.
Asbestos roof encapsulation explained
How encapsulation seals fibres in place — and how it differs from removal.
Insulating Nissen huts & heritage buildings
Why closed-cell foam suits curved corrugated arches where boards can't fit.
What affects commercial spray foam cost?
The real factors behind a quotation — and why a survey gives the accurate figure.
Get a free spray foam survey
Commercial, industrial or agricultural — tell us about your project and we'll specify the right system.
Book a Free Survey → or call 01208 832 602Tell us about your project
Commercial, industrial or agricultural — send us the details and our technical team will specify the right system and a clear budget. No obligation.
Spray foam insulation, answered
Is spray foam suitable for commercial buildings?
Yes — spray foam is one of the most versatile commercial insulation materials, sprayed in-situ to bond directly to corrugated, concrete, metal and asbestos substrates for airtight, long-lasting thermal performance.
Is your spray foam certified and warrantied?
Our Enverge Nexseal LE and Sucraseal systems are backed by a 25-year product warranty.
Can spray foam encapsulate asbestos?
Yes. Our non-licensed, manufacturer-certified encapsulation system locks down asbestos fibres and provides anti-condensation insulation in a single application.
How long does an installation take?
Most commercial installs are completed in days, not weeks — spray foam is fast to apply and creates minimal disruption to live buildings.
Will it stop condensation on my metal/asbestos roof?
Yes — closed-cell spray foam is one of the most effective anti-condensation treatments available, eliminating drip and the corrosion that comes with it.
Do you cover the whole UK?
Yes — we deliver projects UK-wide through our team and network of approved applicators, with a strong base across the South West.