Fire-rated sealing and fire stopping in St Clement's, Oxfordshire
Fire-rated and intumescent sealing of service penetrations and linear gaps in St Clement's. CHAS accredited and fully insured, with a 12-month guarantee.
- Openings found when ceilings come down for a refit
- Expanding foam used as fire stopping
- Fire seals cut back for extra cables and never reinstated
Fire stopping across St Clement's
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
About our fire stopping in St Clement's
Penetration seals are fire tested to BS EN 1366-3 and linear joint seals to BS EN 1366-4 and the results are classified to BS EN 13501-2. A rating such as EI 60 only holds when the product is installed as it was tested. Reproducing the tested arrangement on site is the part we take care of. Most enquiries involve damaged fire seals in risers and voids and seals that don’t match their tested detail, across service gaps in risers, small duct penetrations where the tested detail allows and pipe penetrations. Most enquiries from St Clement's start with one failed joint and grow into a wider look at the building: we look at the rest while we are there and tell you what we find.
Around St Clement's, penetration and linear seals tend to be one-building jobs. With the specification and photos of the gaps, we can give a fixed quote and bring the right products.
Every job we finish is backed by a 12-month workmanship guarantee. If a joint we sealed fails because of how it was installed, we come back and put it right.
- Place
- St Clement's (OX4, OX1, OX3)
- Region
- Oxfordshire
- Cover
- 12 months on our workmanship
- Quote
- A fixed quote before we start
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
Maintenance after handover
Every sealant joint needs some looking after, and how long they last depends on how they’re treated. Our advice:
- Ask the designer to confirm details early on refits
- Look above ceilings when tiles are lifted for other jobs
- Keep product data and details in the fire safety file
- Keep general-purpose fillers away from compartment walls
During planned inspections, look at seals in risers, cupboards and voids. Watch for cracked sealant, new services with no seal and openings that have grown and get them dealt with.
Ask every contractor who works in risers or voids to report openings they create. Small habits like this stop openings building up.
What the job involves on each surface
Drylining partitions
Holes in board are often cut larger than needed. An oversized hole may be outside the sealant’s range.
Masonry and concrete
Core-drilled holes are neat; broken-out ones rarely are. Each gap is measured where it is widest against the detail’s limits, and any that don’t are flagged.
What sealant work can’t fix
Some faults sit outside our scope, and we point that out rather than sealing over them:
- Reviewing a building’s overall fire safety
- Issuing fire ratings or certificates for seals
- Construction that lacks the fire resistance the seal relies on
If in doubt, give us a call on 01277 525 020 or email a schedule or drawings and we will say what we think.
Where we work in St Clement's
- Linear gaps at wall heads
- Small duct penetrations where the tested detail allows
- Joints between fire-resisting walls and floors
- Pipe penetrations
- Service gaps in risers
- Cable penetrations
Compartment walls and floors in St Clement's
There are six care or nursing homes within about 2 miles of St Clement's. In a care home, any new pipe or cable through a fire-resisting wall should be sealed to the specified detail. We install fire-rated sealant to the tested detail where it is specified. The area within 2 miles of St Clement's holds a good number of hotels. Hotels are divided into compartments, and refurbishments that add pipes and cables through bedroom and corridor walls leave gaps to close.
In a retail centre such as Clarendon Shopping Centre, 0.8 miles to the west of St Clement's, any fire-resisting wall between units that is crossed by new services needs sealing to the tested detail. For a unit at a site such as Osney Mead Industrial Estate (1.4 miles west of St Clement's), new power or data runs between office and warehouse can breach a compartment wall. For an estates team at a campus like University College (0.5 miles west of St Clement's), summer M&E works are usually followed by a round of penetration sealing.
St Clement's is about 1 mile west of Oxford, in Oxfordshire. Businesses, contractors and managing agents in St Clement's can call on us for service penetrations. We work across 423 places in Oxfordshire.
Business premises anywhere in OX4, OX1 and OX3 are within our area for service penetrations. Among the streets we cover are Rose Lane, Alma Lane and Avenue Lane. Close to St Clement's, our area also takes in Oxford (1 mile east), Headington Hill (1 mile north-east), St. Ebbes (1 mile west), New Marston (1 mile north) and Donnington (1 mile south). Further afield, our area takes in Didcot (10 miles south), Bicester (11 miles north), Abingdon-on-Thames (5 miles south), Witney (11 miles west), Carterton (15 miles west) and Thame (12 miles east).
Landmarks near St Clement's
Locally, jobs take us to sites close to Cheney School, Alexander Library of Ornithology and Oxford Media & Business School and the streets around them. Nearby too are Headington Hill Park (less than half a mile north-east) and Oxford Coach & Horses pub (under half a mile east). The nearest railway station is Oxford station, about 1.3 miles west. Other landmarks nearby include Oxford Castle (0.9 miles west) and Frank Cooper Marmalade Museum (less than half a mile west). Open spaces near St Clement's include CS Lewis Nature Reserve and Headington Hill.
Cost factors for service penetrations
What shapes the price:
- How much there is to seal
- Working within restricted access windows
- Site requirements such as inductions and permits
- Whether old sealant has to be cut out first
Access often affects the price as much as the sealing: joints within easy reach take less time than ones that need access equipment. Mention the access as part of your enquiry.
What to include in your enquiry
However big the job, these details speed things up:
- Rough lengths or quantities, or drawings if you have them
- Clear photos of the problem areas
- How the joints are reached, and at what height
- Whether the building will be occupied during the work
If there’s a specification, drawings or a tender package, send it with your enquiry, and we’ll price the work to it. Smaller jobs need nothing more than photographs and a few notes.
Site staff or a sealant specialist?
General builders and handymen seal joints, but it isn’t their main trade. A specialist prepares properly, controls joint depth and picks a product with the right movement class, which is what makes a joint last.
There’s also the paperwork. Many sites expect CSCS cards, RAMS and proof of insurance, and we’ll confirm the paperwork you need with the quote.
FAQs: St Clement's
Do you work on fire-rated sealing in hotels in St Clement's?
Yes, where the specification calls for fire-rated sealant. We match the product to the wall or floor and the services, and say if something other than sealant is needed.
Can you work around term dates at a campus such as University College?
Yes. Tell us the term dates, vacation periods and access windows, and we’ll plan the work around them. Any paperwork you need, from RAMS to our insurance certificate and CSCS details, is confirmed with the quote.
How long do sealant joints last?
It depends on movement, UV and weather, cleaning, traffic and the product. Treat them as maintenance items and inspect them regularly.
What happens if old sealant might contain asbestos?
Some older mastics, especially in pre-2000 buildings, can contain asbestos. 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.
Can the sealant be colour-matched?
In many cases, yes. Many products come in a range of standard colours, and matching to RAL references or surrounding finishes is often possible. We will confirm the colours available for the specified product.
What about RAMS and site documents?
Requirements differ from site to site, so tell us what you need and we will confirm it when we quote.
When can the area be used after sealing?
The product and site conditions decide that. Some take light use quickly, others need longer to cure, so we will confirm the curing time on the day.
Also near St Clement's
Also in St Clement's
On site: what to expect
In a busy building, the work is phased so only one area is out of use at a time. Each section is protected, cleaned back and sealed, then handed back before we move to the next. For a job in St Clement's, the main thing is a clear picture of the work, so send photographs of each area. A fixed quote follows.
- We read the specification, drawings or penetration schedule you send and ask about anything unclear.
- On site, each opening is checked against the tested detail it is meant to follow.
- Anything that doesn’t belong in the opening, such as expanding foam or general-purpose filler, is removed.
- We fit the backing the detail asks for, to the stated depth.
- Fire-rated or intumescent sealant is gunned in to the specified depth, then tooled.
- Openings that need a collar, wrap, batt or other product are flagged to you rather than filled with sealant.
Preparing the site
- Tell staff and tenants when we’ll be in
- Send your site hours and access windows
- Make sure the joints can be reached
Ask for a quote
Let us know the site, the scope and your timescale, and we will put a fixed quote together. To get it moving, phone 01277 525 020 or email a schedule or drawings.