Fire-rated sealing and fire stopping in Donnington, West Sussex
Sealant work in Donnington for main contractors, managing agents and facilities managers: fire-rated and intumescent sealing of service penetrations and linear gaps, quoted at a fixed price.
- Service penetrations left open after M&E works
- Non-fire-rated filler around services
- Fire-rated sealant that has cracked or shrunk back
Fire stopping near Donnington
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Fire stopping in Donnington
For main contractors, our fire stopping package slots in after the M&E trades have finished in an area. We work from your penetration schedule or marked-up drawings and the specified product data. Tell us what records you need and we will confirm with the quote. We work on linear gaps at wall heads, small duct penetrations where the tested detail allows and cable penetrations, and the failures we’re asked to look at most are unsealed openings around new pipes and cables and old intumescent sealant that has split away. A specialist sealant contractor works differently from a general builder: in Donnington, that means joint design, primers and backing rod as standard.
Barn and farm-building conversions near places like Donnington often combine new partitions with old walls. Where a pipe or cable passes through a fire-resisting wall, the seal must match the tested detail: product, substrate, gap and depth.
What our 12-month guarantee covers is the way we did the job: preparation, application and finish. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.
- Where
- Donnington (PO20)
- Region
- West Sussex
- Cover
- 12 months on every job
- Quotes
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Page updated
- 3 November 2026
Where services cross fire walls in Donnington
In England, Approved Document B covers fire stopping of openings and penetrations. The national BS 476 classes are due to drop out of it from 2 September 2029, leaving the European BS EN 13501-2 route, subject to transitional arrangements. What we install is set by the specification, and it goes in to the tested detail. At about 56 miles from central London, Donnington is within reach of the capital. Offices around the capital are refitted often, and the cabling that follows can breach fire-resisting walls; the gaps need the specified seal.
Offices at parks like City Business Park, 1.6 miles to the north of Donnington, are re-cabled with each new tenant, and compartment walls need sealing afterwards to the tested detail. For an estates team at a campus like University of Chichester (2.6 miles north of Donnington), summer M&E works are normally followed by a round of penetration sealing.
Donnington is about 2 miles south of Chichester, in West Sussex. We cover commercial sites throughout Donnington. Across West Sussex, 373 places are covered, Donnington among them. For work in that direction, see our Portsmouth page (13 miles or so).
Business premises anywhere in PO20 are within our area for service penetrations. Donnington sits on or close to the B2201, which helps when planning parking and deliveries for the job. Close to Donnington, our area also takes in Hunston (1 mile east), North Mundham (1 mile east), Runcton (2 miles east), Chichester (2 miles north) and Portfield (2 miles north-east). Further afield, our area takes in Bognor Regis (5 miles east), Selsey (5 miles south), Littlehampton (11 miles east), Rustington (12 miles east), Angmering (14 miles east) and Yapton (8 miles east).
Local landmarks in Donnington
Recent enquiries here include premises near The Blacksmith's Arms Public House and the streets around them. Donnington’s nearest station is Chichester station, roughly 1.6 miles north of the centre. Other landmarks nearby include Chichester Cathedral Treasury (1.8 miles north) and St Richard's Hospital (2.5 miles north). Open spaces near Donnington include Nutborne Marshes.
How a job runs
Before any cutting starts, the area is protected: masking tape along the joint edges and sheeting over anything nearby. The work itself usually takes anything from one day to a planned run of visits, depending on the number of seals and the access, and our waste is bagged and taken away as we go. For a building around Donnington, tell us how to find it and who will meet us. Add it to your enquiry and we’ll build it into the plan.
- We start with your penetration schedule, drawings or specification.
- Access, permits and the order of areas are agreed with the site team.
- We compare every service penetration with its tested detail before sealing.
- Unsuitable material is removed and the opening cleaned so the seal starts clean.
- The specified backing and sealant go in to depth and are finished neatly.
- We tell you about openings that need a different product.
Getting the site ready
- Warn occupants and staff about the work
- Move anything stored against the joints
- Share the asbestos register for older buildings
Quotes
A handful of photos and a postcode is the fastest way to a quote. Send them through the quote form, or call 01277 525 020 or email a schedule or drawings to discuss it first.
Related advice
Your questions answered
Can you seal penetrations in a hotel in Donnington after a refit?
Yes, where the specification calls for fire-rated sealant. It goes in to the manufacturer’s tested detail for the wall or floor and the services passing through, and we will tell you if the detail calls for a collar, wrap or batt instead.
Can work at a site such as University of Chichester fit around teaching?
Yes. Tell us the term dates, vacation periods and access windows, and we will plan the work around them. Tell us which site documents you need, such as RAMS, our insurance certificate or CSCS details, and they’re confirmed with the quote.
Does weather matter for sealant work?
Outside, yes. The joint has to be dry and within the product’s temperature range, so damp, frosty or very cold days can stop external work. Inside work is seldom held up.
What hours do you work?
Give us your site hours and any access windows in your enquiry, and we’ll plan around them. Our office runs Monday to Friday, 8am until 5pm.
What’s the quickest route to a quote?
You can use the quote form on this site; alternatively, give us a call on 01277 525 020 or email drawings and photos. Include photos or drawings if you have them.
Are you insured?
Yes. Our insurance certificate can be sent alongside the quote.
Is any job too small?
We quote for single jobs as well as large packages and programmes. Photos and a description are enough to start.
Keeping the joints sound
For the best life from the joints:
- Record which product was used where
- Foam or ordinary sealant is never a fire-seal repair
- Look above ceilings when tiles are lifted for other jobs
- Check with the data sheet before painting over fire sealant
New services after handover are a common way fire stopping gets breached. Building it into each contractor’s sign-off keeps the walls intact.
Specify fire stopping early on refits, not as an afterthought. Details can then be picked to suit the actual pipes, cables and ducts, and installation follows the programme.
Also near Donnington
More services for Donnington
Common problems we fix in Donnington
Head-of-wall joints and wall-to-wall junctions are frequent weak points. Movement in the frame or slab can open the joint, and a product not tested for that movement may crack. Linear joint details set a width range and movement capability, and the seal has to sit within them.
Things that usually lead to an enquiry:
- Open linear gaps along the top of fire-resisting walls
- Openings found when ceilings come down for a refit
- Penetration schedules that need working through
- Non-fire-rated filler around services
For a hospital such as St Richard's Hospital, which lies north of Donnington, penetration sealing is normally phased ward by ward, with infection-control rules agreed first.
Questions to ask before you book
- Whether their applicators hold CSCS cards
- What level of public liability insurance do they hold?
- Their pre-qualification and accreditations
- How the existing material will be dealt with
Surface by surface
Small ducts
Small ductwork can sometimes be sealed with sealant where the tested detail includes it. Larger or fire-rated ductwork usually needs a different solution set by the designer.
Masonry and concrete
Many seals are made in blockwork, brickwork or concrete slabs. Dust and loose debris are cleared out of the opening, so the sealant and any backing sit properly.
What we can’t put right
Some faults sit outside our scope, and we say so rather than covering them up:
- Approving the work on behalf of building control
- Reviewing a building’s overall fire safety
- Large openings beyond what any sealant detail covers
If in doubt, give us a call on 01277 525 020 or email us and we’ll say what we think before you book.
What we seal
- Small duct penetrations where the tested detail allows
- Service gaps in risers
- Pipe penetrations
- Linear gaps at wall heads
- Joints between fire-resisting walls and floors
- Cable penetrations
Building owners, agents and FMs in Donnington
We work for building owners and managing agents on sealant work across single buildings or whole portfolios around Donnington. One quote can cover more than one site, so there’s one set of paperwork to deal with.
Planned maintenance programmes are welcome: working through a building or an estate in stages that fit your budget. Donnington can form part of a wider programme across West Sussex.