
Rusper fire stopping
Fire stopping in Rusper, backed by over 20 years in commercial sealing. Fully insured and CHAS accredited.
- Service penetrations left open after M&E works
- Fire-stopping items raised at inspection or handover
- Open linear gaps along the top of fire-resisting walls
Fire stopping across Rusper
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Fire stopping in Rusper
Facilities managers in Rusper often find open service penetrations when ceilings come down for other work. Where the walls and floors already have a fire-stopping specification, we can work to it. With no specification in place, the first step sits with your designer or fire engineer, not with us. We work on linear gaps at wall heads, service gaps in risers and joints between fire-resisting walls and floors, and the failures we’re asked to look at most are unsealed joints where partitions meet the slab and service penetrations left open after M&E works. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in Rusper, preparation and product choice get the time they need.
For a smaller site near Rusper, we plan to do all the penetrations in one go, so send the specification and photos first. We install to the specification and the manufacturer’s guidance, leaving design and sign-off with the designer and building control.
We stand by our work: 12 months, guaranteed. That covers our preparation and application, and if something we did falls short, we return to it.
- Where
- Rusper (RH12)
- Region
- West Sussex
- Guarantee
- A 12-month guarantee
- Quotes
- Quoted before any work starts
- Phone
- 01277 525 020
- Last updated
- 3 November 2026

Owners, agents and contractors
Building owners and managing agents use us on sealant work across single buildings or whole portfolios around Rusper. One quote can cover more than one site, so there’s one set of paperwork to deal with.
For main contractors, we work as the sealant subcontractor. Programme, specification and site rules come first, with CSCS-carded applicators on site.
Towns and villages near Rusper
What else we do in Rusper
Maintenance after handover
Regular inspection catches problems early. In particular:
- Report damaged or disturbed seals as soon as they’re spotted
- Make fire stopping part of every scope that crosses a fire-resisting wall
- Ask which product is in place before decorating
- Arrange inspection before areas are covered up
Give the sealant its full cure time before ceilings, boxing or decoration go over it. Not every fire-rated product can be painted.
Make reporting new openings part of every permit to work in service areas. Small habits like this stop openings building up.
Rusper: questions and answers
Do you take on work at healthcare sites like Crawley Hospital?
Yes, healthcare and care buildings are part of our work. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.
How does the removal of BS 476 from Approved Document B affect fire-rated sealing in Rusper?
Approved Document B loses its BS 476 references from 2 September 2029, and BS EN 13501-2 becomes the route, subject to transitional arrangements. Whichever applies, we install the specified product to its tested detail; the specification is for the designer to set.
Do you hold CHAS accreditation?
Yes. Mastic Doctor is CHAS accredited and a Constructionline member, which helps with supplier vetting.
Are you insured?
Yes. We’re fully insured, including public liability cover.
What happens if old sealant might contain asbestos?
Asbestos is possible in some older mastics, particularly in buildings from before 2000. Before we disturb old sealant in an older building, we ask to see the asbestos register or survey, and work stops until any suspect material has been tested. We don’t remove asbestos-containing materials.
Will your applicators have CSCS cards?
Yes. If you need card details for site access, let us know and we will send them with the quote.
Is Rusper in your area?
Yes. We cover Rusper. To discuss a job, ring 01277 525 020 or email us.
Do you need fire stopping in Rusper?
Physical damage is another reason seals stop doing their job. Maintenance work can knock a seal, cut it back for an extra cable or remove it with an old pipe, and the repair is often skipped.
Any of the following is a good reason to get the joints checked over:
- Snag lists that include open service penetrations
- Damaged fire seals in risers and voids
- Open linear gaps along the top of fire-resisting walls
- Fire-rated sealant that has cracked or shrunk back
Holiday works at schools like Rusper Primary School often leave service openings to seal before pupils return.
Questions to ask before you book
- Health and safety accreditation such as CHAS
- Whether their applicators hold CSCS cards
- How they’ll work around occupants
- How joint depth will be controlled
What we can’t put right
We seal joints; we don’t mend everything behind them. Sealant alone won’t deal with:
- Issuing fire ratings or certificates for seals
- Designing or specifying fire stopping, which sits with the designer or fire engineer
- Fire risk assessments, a job for a competent assessor
Not sure which it is? You can ring 01277 525 020 or email us and we will tell you honestly.
Joints and surfaces we work on
- Cable penetrations
- Linear gaps at wall heads
- Small duct penetrations where the tested detail allows
- Pipe penetrations
- Joints between fire-resisting walls and floors
- Service gaps in risers
How a job runs
Tell us your site hours and access windows and we’ll plan around them. On the day, the work area is kept contained and tidy, and your contact hears from us before we move to the next area. For a building around Rusper, tell us how to find it and who will meet us. Add it to your enquiry and we will 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.
- Backing and fire-rated sealant are installed to the detail and tooled.
- Anything outside the detail is reported to you rather than sealed.
Before we start on site
- Agree which areas must stay open
- Arrange parking or a loading space
- Share your working hours and any access restrictions
Request a quote
Every quote starts with the facts: the joints involved, quantities, access and the product called for. Send what you have, and we’ll arrange a site visit if anything is unclear.
Related advice
Penetration seals near Rusper
Approved Document B is the English guidance that covers fire stopping around openings and penetrations. References to the older BS 476 classes are being removed from it from 2 September 2029, after which the European classification, BS EN 13501-2, is the route, subject to transitional arrangements. Either way, we install the specified product to its tested detail. At about 27 miles from central London, Rusper is within reach of the capital. Office refits around the commuter belt bring new cabling through fire-resisting walls.
Large healthcare estates like Crawley Hospital, 3.6 miles to the east of Rusper, change their services often, so penetration seals are worth checking after M&E work. In a building such as St Mary Magdalene church, any service penetration through a fire-resisting wall should be sealed to the specified detail.
Rusper is about 4 miles west of Crawley, in West Sussex. We cover commercial sites throughout Rusper. Our West Sussex coverage takes in 373 places, from busy centres to rural villages. There’s a separate page for Brighton, about 21 miles away.
We take on service penetrations across the RH12 postcode area. If your site is on High Street, Cooks Mead and Chalice Walk or close by, we can quote for service penetrations. Close to Rusper, our area also takes in Lambs Green (1 mile east), Ifieldwood (2 miles east), Russ Hill (3 miles north-east), Bewbush (3 miles south-east) and Cudworth (3 miles north). Nearby towns on our patch include Crawley (4 miles east), Horsham (4 miles south-west), Haywards Heath (12 miles south-east), Burgess Hill (13 miles south-east), East Grinstead (12 miles east) and Broadfield (4 miles south-east).
Local landmarks in Rusper
The nearest railway station is Faygate station, about 1.8 miles south. A little further out are Crawley Museum (3.9 miles east) and Crawley Hospital (3.6 miles east). Open spaces near Rusper include Vann Lake and Warnham LNR.
Why it’s worth doing now in Rusper
Leave a penetration open and smoke and fire can cross into the next compartment far earlier than intended. Putting it right is usually a modest job when the openings are accessible. Left until ceilings are closed or a tenant moves in, the same work costs more access and more disruption. Converted and older buildings near places like Rusper tend to move, and aged sealant cracks. The right product, sized to the joint, copes much better.
The product called for affects the cost, and so does the preparation. Access, phasing and site rules also count.
Why appoint us
- Workmanship guaranteed for 12 months
- Constructionline member for supplier checks
- Failed material removed, not covered up
- One phone line for London, the South East and Scotland
See what affects the cost and our accreditations and insurance.