
Fire stopping in Washington
Fire-rated and intumescent sealing of service penetrations and linear gaps in Washington and across West Sussex. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- Unsealed joints where partitions meet the slab
- Fire sealant pulled out of the opening
- Penetration schedules that need working through
Fire stopping for businesses in Washington
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Should maintenance staff do it?
Redoing a failed joint normally costs more than getting it right at the outset, because the whole bead must be removed and the faces cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.
What you see is the finished bead, but most of the work is hidden. Backing rod, primer where specified and a joint designed to move with the building are where general trades tend to cut corners.
Fire stopping in Washington, done properly
For main contractors, our fire stopping package slots in after the M&E trades have finished in an area. To price a package, call the office on 01277 525 020 or use the quote form with the schedule or marked-up drawings alongside the manufacturer’s details. Tell us what records you need and we will confirm with the quote. If you have old intumescent sealant that has split away and penetration schedules that need working through, we can put it right, on joints between fire-resisting walls and floors, linear gaps at wall heads and service gaps in risers alike. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, in Washington it comes down to the same thing: failed joints cut out, faces prepared and the right sealant laid to the right depth.
A job near Washington is typically planned around one visit, with the specification and photographs sent in advance. We install to the specification and the manufacturer’s guidance, leaving design and sign-off with the designer and building control.
Building owners and contractors get the same cover: a 12-month guarantee on our workmanship. It doesn’t extend to damage, faults in the building or work by others, and we are upfront about that.
- Where
- Washington (RH20)
- Region
- West Sussex
- Cover
- 12 months on our workmanship
- Price
- Quoted before any work starts
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026

Penetration seals near Washington
Central London is about 43 miles from Washington. Business park offices in the commuter belt are refitted as tenants change, and each fit-out adds services through compartment walls. Fire stopping of openings and penetrations in England falls under Approved Document B. From 2 September 2029, BS 476 references are being taken out of Approved Document B, leaving BS EN 13501-2 classification as the route, subject to the Government’s transitional arrangements. Our part stays the same: the specified product, installed to its tested detail.
For a school such as St Mary's CofE Primary School, penetration sealing fits best at the end of the summer works. Tenant changes at parks like Rock Business Park (0.7 miles north-east of Washington) bring new data and services, and openings through fire-resisting walls need the specified seal.
Washington is about 6 miles north of Worthing, in West Sussex. Businesses, contractors and managing agents in Washington use us for work on service penetrations. Our West Sussex coverage takes in 373 places, from busy centres to rural villages. Brighton is covered too, some 13 miles away.
Postcode districts covered here: RH20 for service penetrations. Streets here include London Road, The Street and Chanctonbury Close, and sites on any of them can send details for a fixed quote. Nearby places we also cover include Rock (1 mile north), Sullington (1 mile west), Heath Common (2 miles north-west), Storrington (2 miles north-west) and Warminghurst (2 miles north). Nearby towns on our patch include Horsham (12 miles north), Worthing (6 miles south), Bognor Regis (15 miles south-west), Haywards Heath (15 miles north-east), Burgess Hill (13 miles east) and Littlehampton (8 miles south-west).
Near you in Washington
Recent enquiries here include premises near Rydon Community College, Windlesham House School and The Frankland Arms Public House, among other places. Well-known places in the area include The Storrington And District Museum (2 miles north-west). For a walk, there’s Chanctonbury Hill.
Leave it or put it right?
Sealing behind the M&E trades area by area beats a sweep at the end. While the area is still open, every opening is easy to see and reach and each detail can be checked as we go. For buildings around smaller places like Washington, water damage can go unnoticed for longer, especially where a building isn’t used daily, so a failed joint can leak for a while before anyone sees it. Resealing early avoids that.
There’s no price list, because the scope varies so much from one building to the next. For a fixed figure, call for a quote.
Why appoint us
- Joints cleaned back to sound surfaces
- Over 20 years of commercial sealing
- CHAS accredited contractor
- Fully insured
See how commercial sealant jobs are priced and our accreditations and insurance.
How a job runs
Site rules come first: signing in, inductions and any permit to work. With the paperwork done, the joints are worked through in the order agreed with your site contact, and each area is checked before we leave it. Rural sites near Washington may need directions, gate codes or a contact on site. Add it to your enquiry and we’ll build it into the plan.
- The specification and schedule come first, so we know which details apply.
- Access, permits and the order of areas are agreed with the site team.
- We compare every service penetration with its tested detail before sealing.
- Foam, ordinary sealant and debris come out first.
- Backing and fire-rated sealant are installed to the detail and tooled.
- Anything outside the detail is reported to you rather than sealed.
What we need from you
- Let us know about inductions and permits
- Point out any areas we must not close
- Let building users know which areas are affected
Get a fixed quote
The quickest route to a quote is a few photographs and the site postcode. Upload them with the quote form, or ring 01277 525 020 or email the details over to discuss it first.
Related advice
Washington: questions and answers
Can you work at a site such as Rock Business Park, by Washington?
Yes, sites like Rock Business Park are within our area, along with the rest of Washington. Photos and a short description are enough for a first look.
How does the move away from BS 476 affect penetration seals in Washington?
References to BS 476 classes are being removed from Approved Document B from 2 September 2029, after which BS EN 13501-2 classification is 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 need to see the site first?
Many jobs can be quoted from photographs, drawings or a joint schedule. Where they aren’t, we arrange a site visit.
Do you take on small jobs?
Whatever the size, the process is the same: details, then a fixed price, then sealing, then a 12-month guarantee.
Can staff carry on working while you are here?
Yes, with some planning. Tell us your site hours and access windows and we will plan around them.
What will the job cost?
Every job gets its own fixed quote. For yours, phone 01277 525 020 or send details through our quote form.
When is resealing likely to be due?
Nobody can honestly give a figure in years, because life depends on how much the joint moves, how exposed it is and how it’s cleaned and used. Regular inspection is the best way to catch problems early.
Work for main contractors and building owners
When you manage a building on behalf of an owner, clear figures and clear communication matter. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative.
Facilities managers want contractors who arrive with the paperwork sorted. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we will confirm them with the quote.
Signs you need fire stopping in Washington
Linear gaps fail where a fire-resisting wall meets a slab, soffit or another wall. Movement in the frame or slab can open the joint, and a product not tested for that movement may crack. The tested detail for a linear joint states the width and movement it covers.
Clients normally get in touch after noticing something like this:
- Service penetrations left open after M&E works
- Penetration schedules that need working through
- Non-fire-rated filler around services
- Fire-rated sealant that has cracked or shrunk back
Halls and meeting rooms at places like The Parish Church of St Mary sometimes gain new services, and any compartment wall crossed needs the specified seal.
Questions to ask before you book
- What site paperwork they can supply
- Their approach to joint depth and backing
- How the existing material will be dealt with
- Whether their applicators hold CSCS cards
Looking after the joints
Sealant joints are maintenance items, and how long they last depends on how they’re treated. We suggest:
- Ask the designer to confirm details early on refits
- Get seals inspected before ceilings and boxing close
- Record which product was used where
- Foam or ordinary sealant is never a fire-seal repair
Don’t patch a fire-rated seal with anything outside its tested detail. Repairs need the same product and detail as the original unless the designer specifies otherwise.
Regular walk-rounds of service areas are worth the time. A cracked or disturbed seal found early is a small job; found late, it can be one of many.