
Commercial · Industrial · Agricultural
Spray Foam Insulation for Commercial, Industrial and Agricultural Buildings
Specialists in commercial spray foam insulation, with more than 20 years of experience across warehouses, factories, agricultural buildings and specialist structures.
500+ commercial installations. Trusted nationwide by architects, engineers and commercial clients.
Services and applications
Start with the building you have, or the roof or structure you need to fix.
By building

Warehouses & Distribution
Sheet roofs that drip on to racking and stock.

Industrial Units & Factories
Production space that will not hold its heat.

Agricultural Buildings & Barns
Cold sheet roofs, damp feed and wet bedding.

Shipping Containers & Conversions
A steel box, insulated before the fit-out.

Garages, Workshops & Outbuildings
Nissen huts, lean-tos and cabins. Private owners welcome.

Steel-Framed Buildings
Portal frames and clad structures, roof and walls.
By roof or structure

Asbestos & Cement-Sheet Roofs
Encapsulated in place. Nothing stripped out.

Metal & Corrugated Roofs
Single-skin tin and profiled steel, sprayed from below.

Concrete Soffits & Car Park Ceilings
Exposed slabs, sprayed from underneath.

Piled & Retaining Walls
Sprayed in the excavation, before the build goes up.

New Build & Developer Projects
Specified from the drawings, sprayed to programme.

Commercial Spray Foam Insulation
The overview: what it is and how a job runs.
None of these quite fit? Ring us. If it is not a spray foam job we will tell you so rather than sell you one.
Why Spray Foam Tech
Spray Foam Tech specialises in spray foam insulation for commercial, industrial and agricultural buildings: metal and asbestos cement roofs, warehouses, workshops, containers and complex concrete structures.
We do more than turn up and spray. Every project is assessed around the building, the substrate, the access, the condensation risk and the performance it has to reach, so the specification matches the problem you are actually trying to solve.
One team from survey to installation
Survey, specification, quotation, installation and handover, all managed through Spray Foam Tech.
- Step one
Site survey
The building is looked at properly by people who understand the installation.
- Step two
Specification
System, depth and detailing set for that roof, that substrate and that use.
- Step three
Quotation
A written estimate that matches the specification, with nothing left to interpret on site.
- Step four
Installation
Sprayed by our experienced technicians, who do this work every day.
- Step five
Handover
The finished work shown to you, photographed, and signed off.
Survey, specification and quotation are handled by people at Spray Foam Tech who know the installation. The spraying itself is carried out by our technicians. Different people, one company, one point of responsibility.
Fire performance on the record
The uncoated system achieved Class 1 surface spread of flame to BS 476 Part 7. Finished with DC315 intumescent coating at 0.7mm, the system is classified Euroclass B-s2,d0 to BS EN 13501-1. Both tested by BTTG in 2024, and the reports are available on request.
25 year warranty
Our own 25 year workmanship warranty covers the installation, and it activates when the works are paid for in full. The manufacturer issues its own 25 year product warranty separately, sent direct to you after completion. Ask for both sets of terms with your quotation.
Accredited and site ready
SafeContractor accredited. We arrive with the paperwork a site manager will ask for.
A specification built around your building
We look at the building before we confirm the works, and the specification follows what we find there. Not a one-size-fits-all system applied to every job.
- Roof profile
- Substrate
- Condensation risk
- Insulation depth
- Access
- Fire protection
Recent projects
Real jobs, photographed by the people who did them.









Scroll to see more. Drag, swipe, or use the arrows. Every photograph is one of our own jobs.
Problems we solve
Most calls start with a symptom, not a product. These are the four we hear most.
- 1
A roof that drips when it is not raining
Warm, damp air meets a cold roof and turns back into water. Often nothing is leaking at all: the building is making the water itself.
Metal and corrugated roofs - 2
A building you cannot keep warm
Sheet roofs and single-skin walls lose heat faster than you can put it in.
Steel-framed buildings - 3
Surfaces other insulation will not stick to
Corrugated sheets, curved roofs, concrete soffits between beams, the face of a piled wall. Awkward is normal for us.
Concrete soffits and structures - 4
A cement-sheet roof that sweats worst of all
Single-skin asbestos-cement has no insulation value, so it is the coldest surface in the building. We encapsulate it in place from underneath. We are not a licensed removal contractor, and if the material has to come out we will say so.
Asbestos and cement-sheet roofs
Case studies
Work completed for BP, Rolls-Royce Motor Cars, the Alban Arena, and four schools across Hampshire and Berkshire. Named clients, real buildings, written up in full.

BP petrol station
A flat commercial roof that sweated, sealed from below.
Read the case study
Four schools, Hampshire & Berkshire
29 buildings and more, through public-sector procurement.
Read the case study
Nissen hut for Rolls-Royce
A curved corrugated roof, sprayed end to end.
Read the case study
The Alban Arena
A theatre roof void, insulated from the inside.
Read the case study
Swimming pool & gym
500mm of fibreglass and still soaking. Solved within 48 hours.
Read the case studyAll case studies
Every client we can name, with the building, the problem and what was applied.
See all case studiesWhat happens when you get in touch
Two ways in, and the same four steps whichever one you take.
- 1
You tell us what the building is and what it is doing. Building type, rough size, roof only or roof and walls, what you are seeing, and whether anything is coming in from outside. Rough is fine.
- 2
A technician rings you back. Someone who has surveyed and specified these buildings and knows what the roof in front of you is doing. If spray foam is not right for your building, you will be told so on the phone rather than in a quotation.
- 3
We estimate, or we come and look. If it is straightforward we can price it from what you have told us. If it is not, or you would rather we saw it, we survey the building first.
- 4
You get a written estimate. Most estimates go out within about three working days of your enquiry.
If you are not sure spray foam is the right answer
Tell us about the building and a technician will ring you back to work it out with you. No obligation, no specification needed, and an honest answer if it is not a job for us.
If you already know what you want priced
Tell us the building, the rough area, and whether it is the roof or the roof and walls, and we will estimate it.

