Insulate your facility in a single visit. Enverge closed-cell spray foam from £25/m² fully installed — kills condensation drip, hits Part L U-values, self-bonds to the structure with no boards or fixings.
Labs, data suites and business-park stock around Bristol cannot tolerate temperature swings or condensation risk. Enverge Nexseal LE delivers a continuous air-sealed, vapour-tight envelope — spray-applied around every penetration without disturbing the floors below.
One team specifies, supplies and supervises the whole job: Duratite issue the specification with bespoke U-value calculations and a condensation risk analysis, the foam is installed by Enverge-approved contractors covering every Bristol postcode, and the finished work is backed by a 25-year manufacturer-backed product warranty. We regularly survey and work on buildings around Avonmouth, Aztec West, Severnside.
Across the UK, Enverge closed-cell spray foam has ended condensation drip and cold-bridging on warehouses, factories, farm buildings and cold stores — insulation and vapour barrier in one continuous, self-bonded layer.
Rigid boards and overcladding both add structure to solve an insulation problem: fixings, battens, weight and multi-trade programmes. Spray foam adds only insulation. If the structure is sound, Enverge foam delivers the U-value, the air-seal and the vapour barrier in one visit — and where boards genuinely make more sense, the survey report says so.
Condensation dripping from the roof sheets onto stock, plant or stores
An EPC or Part L target the current build-up cannot reach
Complex framing, purlins and penetrations that defeat cut-board insulation
Multi-trade overcladding quotes that blow the budget
Kit below that cannot tolerate dust, fixings or water risk
Closed-cell Enverge Nexseal LE in Bristol typically costs £25 to £55 per m² fully installed at standard thickness (around 75–100mm) — one figure covering materials and professional application. Access, area and the target U-value set where you land in the range.
| Complete system, fully installed | Typical installed price | Best suited to |
|---|---|---|
| Nexseal LE closed-cell system — standard thickness | £25–£55 / m² installed | Roof soffits, walls and frames insulated to Part L at 75–100mm |
| Where the lower end applies | from £25 / m² installed | Open, accessible elevations and larger continuous areas |
| Where the upper end applies | toward £55 / m² installed | Complex framing, restricted access, higher build-ups |
One system, one price. Every element below is part of the installed figure — none of them is ever priced separately.
Nexseal LE does three jobs in one pass: it insulates to Part L, it air-seals the envelope, and it acts as the vapour barrier — so the metal never sees warm moist air, and condensation drip stops for good.
Because it is spray-applied and self-bonds to the structure, there are no fixings to corrode, no boards to sag and no joints to open up — which is exactly why the manufacturer stands behind it for 25 years.
Insulate Bristol's tech and R&D estate — business parks, labs, data centres — with Enverge Nexseal LE closed-cell spray foam. Continuous air-seal, low U-value, condensation control across precision environments. 25-year manufacturer-backed product warranty.
Enverge foam is spray-applied and self-bonds to the structure in one visit — no fixings, no boards, no overcladding. Tack-free in minutes, cured the same day.
Closed-cell Nexseal LE warms the internal face of the sheeting above dew point — drip onto stock, plant and stores stops for good.
A declared conductivity of 0.027 W/m·K hits required U-values at less depth than mineral wool — with bespoke calculations supplied.
Enverge Nexseal LE, declared to BS EN 14315-1, with a 25-year manufacturer-backed product warranty on approved installs.
Four steps from first call to 25-year warranty. Most Bristol buildings are surveyed within 2–5 working days and sprayed in a single visit.
A measured walk-over of your Bristol building with substrate checks, photographic record and U-value indication.
Same-week quotation with measured areas, specified thickness, bespoke U-value calculation and condensation risk analysis.
Work zone shrouded and gas-monitored, then the foam is spray-applied to the specified thickness. Tack-free in minutes, cured the same day.
Final inspection, compliance dossier handover, and the 25-year manufacturer-backed product warranty issued.
Finished Enverge installations photographed after completion — the same specification process and the same approved contractor network we deploy in Bristol.
Profiled metal roof with chronic condensation drip onto racking. Nexseal LE applied to the underside in out-of-hours shifts; the finished layer covers deck and purlins continuously.
Steel-deck soffit insulated in a single pass. The foam follows every flute and beam junction, so there are no cut boards, no gaps and no thermal bridges left at the edges.
The junction where boarded systems normally leak air. Sprayed foam seals deck, beam and wall head as one continuous surface, closing the air path completely.
Profiled metal, steel frame, concrete deck, timber — if the structure is sound, the foam bonds straight to it. Nothing is fixed through the roof, so the weathering skin above is never compromised.
Every photograph below is a finished installation, signed off and warranted — not a work in progress.
Foam taken right up between the beams and across the deck. Boards cannot follow this geometry without cutting, and every cut is a gap.
A finished soffit on a steel-framed commercial unit. The layer is uniform across the full bay, with the structural steel picked out clean at the edges.
Walls take the same chemistry. Foam fills the stud bays completely and air-seals the perimeter, so the wall performs as designed rather than as built.
Duratite specifies both Enverge chemistries. Use this side-by-side to shortlist — the free Bristol survey confirms the right specification.
| Feature | Nexseal LE · closed-cell | Sucraseal · open-cell |
|---|---|---|
| Cell structure | Closed-cell — rigid, vapour-tight | Open-cell — flexible, breathable |
| Declared conductivity | 0.027 W/m·K at 125–200mm | 0.039 W/m·K below 100mm |
| Vapour control | Integral vapour barrier | Vapour-open — breathes with the structure |
| Best suited to | Metal roofs & walls, condensation control, vapour-critical zones | Timber frames, acoustic comfort, breathable build-ups |
| Acoustic performance | Standard | Excellent sound absorption |
| Declared to | BS EN 14315-1 | BS EN 14315-1 |
Approved contractors cover every Bristol postcode and the wider the South West region.
We work regularly across Bristol’s major estates and business parks:
Outside one of these? We still cover all of Bristol and the wider the South West region.
Free site surveys and installations across these postcode areas in and around Bristol:
Somewhere else? Call 01208 832 602 — we cover the entire UK mainland and Northern Ireland.
Sector-specific specifications for the buildings Bristol actually has:
Every sector page carries the same fully installed pricing and the same manufacturer-backed warranty.
Straight answers to the questions Bristol building owners and facilities managers ask us most.
Yes. Duratite covers all of Bristol and the wider the South West area. Our manufacturer-trained Enverge-approved contractors are mobilised across the region for free site surveys and Nexseal LE / Sucraseal spray foam installations on commercial, industrial, agricultural and modular buildings.
For most Bristol postcodes we attend within 2–5 working days of enquiry. Urgent surveys can be arranged within 48–72 hours. Each visit includes a measured walk-over, photographic record, U-value indication and same-week written quote with no obligation.
For commercial work in Bristol, closed-cell Enverge Nexseal LE typically ranges from £25 to £55 per m² supplied and installed at standard thickness (around 75–100mm). Open-cell Sucraseal is lower again. Final pricing depends on access, building size, substrate and required U-value. Free site survey provides an exact figure with no obligation.
Yes — this is one of the most common reasons Bristol building owners specify Enverge Nexseal LE. The closed-cell foam acts as both insulation and a vapour barrier in a single application. By warming the internal face of the metal sheeting above the dew point, condensation drip onto stock, equipment and personnel is eliminated. It self-bonds to the substrate as it cures — no fixings, no overcladding.
Enverge Nexseal LE achieves a thermal conductivity of approximately 0.027 W/m·K — among the best of any commercially available insulation. Applied at appropriate thickness it meets or exceeds Building Regulations Part L for walls, roofs and floors in Bristol commercial buildings. Our technical team provides bespoke U-value calculations specific to your build-up.
Yes. We supply the full compliance dossier for every commercial spray foam project: manufacturer product certificate, technical datasheets, installer accreditation, U-value calculations and condensation risk analysis. This is standard for Bristol commercial / industrial / institutional buildings — handed over at project completion alongside the 25-year manufacturer-backed product warranty.
Yes. We routinely schedule Bristol commercial spray foam installs for weekends, bank holidays and out-of-hours shifts so your operations and tenants are not interrupted. Enverge spray foam tack-frees within minutes and is fully cured the same day, which makes weekend installs reliable even in changeable UK weather provided substrate temperature is within manufacturer limits.
Yes. All Bristol installations are carried out by Enverge-approved spray-foam contractors with manufacturer training, full public-liability insurance, working-at-height accreditation, CSCS-qualified operatives and gas-monitoring/PPE protocols. The 25-year manufacturer-backed product warranty is only valid when installation is completed by approved applicators.
We regularly work across Avonmouth, Aztec West, Severnside, Cribbs Causeway — and every other commercial estate in and around Bristol. If your building sits outside these areas we still cover all of the South West; call 01208 832 602 to confirm your postcode.
Yes. The same approved contractor network that covers Bristol works across the whole of the South West, including Bath, Chepstow, Newport. One survey team, one specification, one 25-year manufacturer-backed product warranty — wherever the building is.
Installation is carried out by Enverge-approved spray-foam contractors with manufacturer training, full public liability insurance, CSCS-qualified operatives and gas-monitoring and PPE protocols. The products are supplied by Duratite Building Products Limited, and the 25-year product warranty is manufacturer-backed on Enverge Nexseal LE — whose thermal performance is declared to BS EN 14315-1 — and valid only when an approved applicator completes the install, which is exactly how every Duratite-managed project runs.
The national hub — products, applications and every city we cover.
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Read more →Send your building details and a few photos. We confirm the right Enverge specification and book your free Bristol survey.
Tell us about your building and we’ll recommend the right system — foam, waterproofing or both — surveyed, specified and quoted at no cost.
We install Spray Foam Insulation across the UK. A few other locations our approved teams cover:
Not seeing your area? We cover all of the UK. Call 01208 832 602 for a free site survey.
