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Inside a modern farm barn: the underside of the corrugated roof sprayed in a continuous cream layer, straw bales below.

Location · Devon · South West

Commercial spray foam insulation in Exeter

For condensation or heat loss in your Exeter building, the right depth starts with understanding the roof you already have.

LOCALExeter: 320 m² of agricultural roof underside insulated with closed-cell foam, August 2026.

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Or call . Enquiries before 3pm on a working day are contacted the same day.

  • Over 20 years' experience
  • Thousands of projects
  • Rated 4.8 out of 5 by our customers
  • 25 year workmanship warranty
  • Free, no-obligation survey

Enquiries received before 3pm on a working day are contacted the same day; after 3pm, the next working day.

CoverageCovered from HOLVEM's Exeter depot, one of four depots (Weybridge, Bedford, Manchester, Exeter) that give HOLVEM nationwide coverage.

01Start with your building

Pick the building, or the surface the foam goes onto.

A farm building in Exeter and an underground bunker in Cullompton called for different uses of closed-cell foam. Your building’s use is a useful place to begin.

Find your building

All building types
A long industrial unit seen along its length: lattice steel roof trusses and a profiled metal roof sprayed from beneath, strip lights below.Industrial unit and factory insulationApplied from below zone by zone, so production carries on around the work. Inside a large distribution warehouse: tall pallet racking under a high profiled steel roof, its underside sprayed in a continuous closed-cell layer.Warehouse and distribution roof insulationCondensation off the racking and the stock, one bay at a time while the floor keeps working. A retail park unit with a wide profiled roof, seen across its car park early in the morning.Retail unit insulationRoofs and soffits over trading units, phased around opening hours. Inside a large arched steel agricultural building: the roof and walls sprayed in a continuous cream closed-cell layer.Agricultural building roof insulationBarns, livestock and machinery sheds: the roof stays on, the drips stop, the stock stays. A shipping container converted to a workspace, its steel walls seen from the open doors.Shipping container insulationSteel that sweats on every cold morning, sealed from inside into a dry, usable space. All building typesTwenty-one building types: the problem each one has, and how the work is phased around it.Browse

Find your application

All applications
An empty unit floor looking towards an open roller-shutter door: the whole profiled steel roof and its purlins sprayed from beneath, rooflights left clear.Spray foam to a profiled metal roof undersideThe sheet stays as the weather line; the layer closes laps, fixings and purlin flanges from below. A concrete deck soffit in an undercroft fully sprayed in a continuous cream closed-cell layer, galvanised steel frame and cable ducts below.Concrete soffit spray foam insulationBonded to the slab, continuous around beams and penetrations, to a calculated depth. All applicationsEleven surfaces: what happens to each one, in what order, and how you know it was done properly.Browse

02Recent projects · Local

Recent projects in and around Exeter.

A selection from HOLVEM's work across thousands of projects, each a project our team installed in and around Exeter. Compare the surfaces: an Exeter agricultural roof, containers in South Molton and an underground concrete bunker in Cullompton.

Recent installs near Exeter

  • LocalExeterAgricultural buildingCorrugated roof underside320 m²Closed-cell foamAugust 2026
  • NearbySouth MoltonContainersCeilings and back wall210 m²Closed-cell foamFebruary 2026
  • NearbyUnderground bunker, Cullompton, DevonClosed-cell foam

Have a roof or soffit in Exeter like these?Five photographs from the floor are often enough for a same-day direction. Before 3pm on a working day, we contact you the same day.

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03Why Exeter buildings need it

A roof specification for the building you run

Exeter’s working premises range from motor trade and builders’ merchants to science park buildings, each with its own roof construction. The specification starts from what is already on the roof. Read industrial unit and factory insulation.

  1. S1

    Marsh Barton has over 500 businesses, including motoring, builders’ merchants and plant hire.

    Source: Wikipedia, Marsh Barton
  2. S2

    Exeter City Council also identifies Sowton Industrial Estate, Park Five, Apple Lane and Exeter Science Park among its business locations.

    Source: Exeter City Council, Key business locations
  3. S3

    The building’s construction still needs establishing. One listed 31,197 sq ft unit on Cofton Road has a steel frame and a double-skin insulated profiled sheet roof.

    Source: JLL, Cofton Road property listing

04How a job runs

Photographs or a survey, a specification, then the application.

The same three stages on every HOLVEM job, in Exeter or anywhere else. You bring the building and what is bothering you about it; we bring the rest, in this order.

STAGE 01Show the construction

Send views of the roof underside, the existing layers and the space below. Our survey or photographs guide explains which questions pictures can help answer.

STAGE 02Establish the depth

We assess the building and check moisture before specifying. A thermal target needs a U-value calculation for the complete build-up.

STAGE 03Apply the specification

Roof and soffit insulation is applied from beneath, with access and sequencing considered for your premises.

How a job runs, in full

05Straight answers

The questions Exeter building owners ask first.

Answered the way the specialist answers them on the call. A question we have not covered? Ask it when we speak. No obligation.

Do you carry out commercial spray foam insulation in Exeter?
Yes. HOLVEM works from its Exeter depot. Begin with the building’s use and the problem you want assessed, whether that is above a trading floor or inside an agricultural building. Start a project brief.
Have you worked on buildings in or near Exeter?
In August 2026, we applied closed-cell foam to 320 m² of corrugated roof underside at an Exeter agricultural building. Nearby work includes container ceilings and a back wall in South Molton, and an underground concrete bunker in Cullompton. Compare the surfaces through all applications.
Can insulation work fit around an operating Exeter site?
Tell us which areas can be accessed and what needs to keep running. Closed-cell foam can be applied from below zone by zone; the sequence needs to suit your site. At Nuneaton Signs, 2924 m² was treated at weekends with production untouched. See the working factory record for that arrangement.
My Marsh Barton roof already has insulation. What should I check?
Establish the roof layers, their condition and the problem you are trying to resolve. The Cofton Road example has a double-skin insulated profiled sheet roof, so it would be wrong to assume every similar-looking building starts with bare metal. Your depth follows the assessment and moisture checks. Read how the specification is developed.
How quickly will HOLVEM respond to an Exeter enquiry?
Enquiries received before 3pm on a working day are contacted the same day; after 3pm, the next working day. That is the contact commitment. Send the information you have through Start a project brief; the assessment establishes what can be specified and priced.
Where can I find costs for my Exeter building?
The commercial spray foam cost guide gives the pricing guidance. Roof condition, depth and access need considering before a firm figure can be given for your premises. Include photographs and the result you need in your brief.
What warranty comes with the work?
25 year HOLVEM workmanship warranty, plus the manufacturer's 25 year product warranty issued directly to you. To discuss the work you have in mind, Start a project brief with the roof construction and your objective.

06Nearby areas

Also covered from the Exeter depot.

Working on a building beyond Exeter? Give us its location and a view of the surface that needs attention.

Start a project brief All areas we cover

The next step

Your Exeter building.
Your brief.
A specialist.

If you already know the thickness or U-value you need, we price to it and confirm it is right for the building; if not, we work it out with you. A brief takes about five minutes and photographs are welcome. "Not sure" is a useful starting point.

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Or call . Enquiries received before 3pm on a working day are contacted the same day; after 3pm, the next working day. A commitment to contact, not a quotation, a survey or a price.

WarrantyA 25-year HOLVEM workmanship warranty, plus the manufacturer's 25-year product warranty, issued directly to the client by the manufacturer. The scope of each is set out in its written terms.

HOLVEM is an accredited installer for the manufacturer of the spray foam systems we apply.

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