Trench Green fire stopping
We carry out fire-rated and intumescent sealing of service penetrations and linear gaps in Trench Green. Send photographs or drawings for a fixed quote.
- Snag lists that include open service penetrations
- Expanding foam used as fire stopping
- Damaged fire seals in risers and voids
Fire stopping near Trench Green
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Fire stopping for commercial buildings in Trench Green
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. Tell us what records you need and we will confirm with the quote. If you are dealing with seals disturbed by maintenance and left open and head-of-wall gaps with no fire seal, we can help. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: in Trench Green, that means joint design, primers and backing rod as standard.
Rural conversions around Trench Green can put new fire-resisting partitions inside older structures. A penetration seal only performs as tested if product, substrate, service, gap and depth all match the detail.
Every job ends the same way: guaranteed. Our workmanship is backed for 12 months, and we explain exactly what that covers when we quote.
- Place
- Trench Green (RG4)
- Wider area
- Oxfordshire
- Guarantee
- A 12-month guarantee
- Price
- Quoted before any work starts
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
What the job involves on each surface
Plastic pipes
In a fire, plastic pipework melts away and leaves an opening. Small sizes are sometimes covered by an intumescent sealant detail. We confirm material and size first and tell you if sealant isn’t the right product.
Metal pipes
Sealant details often cover copper and steel pipework. The tested detail sets the pipe size range, gap, depth and whether insulation can stay on, so we check each one.
Why it’s worth doing now in Trench Green
Inspections and handover checks often pick up fire stopping. Finding unsealed or improvised openings late can hold up a programme, so earlier action pays back. Halls, stores and units around places like Trench Green may not be checked every day, so a failed joint can leak for a while before anyone sees it. Resealing early avoids that.
What a job costs comes down to how many linear metres there are, what has to come out first and how the joints are reached. Call for a fixed quote when you’re ready.
What you get with us
- Clear, fixed quotes
- CSCS-carded applicators
- Health and safety: CHAS accredited
- Old sealant cut out, never sealed over
Take a look at what affects the cost or how we’re accredited.
Maintenance after handover
Keep the joints in good shape with a few simple steps:
- Foam or ordinary sealant is never a fire-seal repair
- Settle who seals which penetrations at the start of a project
- File the specified details where the next contractor can find them
- Make fire stopping part of every scope that crosses a fire-resisting wall
During planned inspections, look at seals in risers, cupboards and voids. Look for cracks, unsealed new cables and gaps that have been enlarged and get them dealt with.
Ask every contractor who works in risers or voids to report openings they create. It costs little and catches breaches early.
What we’re called out for in Trench Green
Fire stopping can get squeezed at the end of a programme, or done by whoever is on site. That is how unsuitable products and improvised details end up in compartment walls and later need putting right.
These are often picked up first by site or facilities staff:
- Unsealed joints where partitions meet the slab
- Unsealed openings around new pipes and cables
- Fire seals cut back for extra cables and never reinstated
- Fire-rated sealant that has cracked or shrunk back
At a healthcare site like Battle Hospital, 2.6 miles south of Trench Green, new services through compartment walls are a constant, and each needs the specified seal.
What your quote should include
- Will RAMS and insurance details be available?
- Proof of insurance
- How long is the guarantee, and what does it include?
- How the existing material will be dealt with
Your questions answered
Is Trench Green too far out for you?
No. Small places get the same service as large ones. London and every South East county are within our area. We plan jobs in smaller places so return trips are kept to a minimum.
Do you take on work at healthcare sites like Battle Hospital?
Yes, healthcare and care buildings are part of our work. Each area is agreed with the ward or department and the estates team in advance.
Which standards are fire seals tested to?
BS EN 1366-3 covers penetration seals and BS EN 1366-4 covers linear joints. Classification follows BS EN 13501-2, where E is integrity, I is insulation and the number is minutes, as in EI 60. That rating only holds when the product is installed to its tested detail.
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.
How long before the joints can be used?
The product and site conditions decide that. Some products skin over quickly but need longer to cure fully, and we confirm it before leaving site.
Do you work in Scotland as well as England?
Scotland sets its own building regulations, with Technical Handbooks. Wherever the site is, our work follows the specification and the tested detail.
Do you seal openings left by new services?
Yes, provided a specification covers them. Openings left by new services are among the most common jobs we see, and we reseal them to the specified detail.
How the quote is worked out
Your fixed quote is built from the real scope. It takes account of:
- Specialist products, such as fire-rated or hygienic sealants
- How much there is to seal
- Travel to remote or island sites
- Working within restricted access windows
Pricing service penetrations depends on how many there are, their condition and the access, plus any specification you’re working to. Ask us for a fixed quote.
What to include in your enquiry
A few photographs plus some basic facts will normally do. It helps to include:
- Your programme or deadline
- The type of building and who uses it
- Any specification or named product
- How the joints are reached, and at what height
For a fixed quote, call 01277 525 020 or email a schedule or drawings, telling us the site location and the nature of the job. Our quote form is another easy route.
From enquiry to sign-off
Working in a building that stays open takes some planning. We sign and contain the area we are in, keep walkways clear and move on in phases so staff and visitors can carry on around us. For work around Trench Green, we aim to finish in one visit, so photos and measurements up front really help. That way the right products come on the day.
- We start with your penetration schedule, drawings or specification.
- We plan the sequence of floors, risers and voids with you.
- 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.
What we need from you
- Tell staff and tenants when we’ll be in
- Tell us which areas need to stay in use
- Tell us what induction or permit system the site runs
Request a quote
A good quote starts with a clear picture: what’s there, how much of it, how we reach it and what’s specified. Share whatever details you have and we’ll fill any gaps with a visit.
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Also near Trench Green
More services for Trench Green
Where services cross fire walls in Trench Green
Trench Green lies roughly 40 miles out from central London. Office refits around the commuter belt bring new cabling through fire-resisting walls. Approved Document B is the English guidance that covers fire stopping around openings and penetrations. 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. We install whatever has been specified, to the product’s tested detail.
Tenant changes at centres like Reading Retail Park, 2.3 miles to the south of Trench Green, often mean new services through walls between units. On a site such as Oxford Road Business Park (1.9 miles south of Trench Green), every fit-out that runs new services through a compartment wall leaves penetrations to seal with the specified product.
Trench Green is about 2 miles north-west of Caversham, in Oxfordshire. We cover commercial sites throughout Trench Green. 423 places across Oxfordshire fall within our area, including Trench Green.
We cover the RG4 postcode districts for service penetrations. Close to Trench Green, our area also takes in Chazey Heath (1 mile east), Mapledurham (1 mile south-west), Purley on Thames (2 miles south-west), Norcot (2 miles south) and Tilehurst (2 miles south). Nearby towns on our patch include Didcot (13 miles north-west), Henley-on-Thames (5 miles north-east), Benson (10 miles north-west), Chinnor (15 miles north), Wallingford (9 miles north-west) and Great Western Park (13 miles north-west).
Landmarks near Trench Green
Recent enquiries here include premises near Pack Horse Public House. Trench Green’s nearest station is Tilehurst station, about 1.7 miles south of the centre. Other landmarks nearby include Broad Street Mall (3.2 miles south-east) and Royal Berkshire Regiment Museum (2.6 miles south). Open spaces near Trench Green include South Lake and Moor Copse Nature Reserve.