
Fire-rated sealing and fire stopping in Tetsworth, Oxfordshire
Commercial sealant work in Tetsworth for contractors, FMs and building owners: fire-rated and intumescent sealing of service penetrations and linear gaps, with a fixed quote first.
- Penetration schedules that need working through
- Fire-rated sealant that has cracked or shrunk back
- Hidden openings found during inspections
Fire stopping for businesses in Tetsworth
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
What we’re called out for in Tetsworth
Openings in fire-resisting walls usually appear when services are added or changed. New cabling, rerouted pipework or a data route drilled through a riser leaves an opening that nobody returns to. Over a few years of fit-outs, a wall can collect a lot of these.
It’s worth sending us details if you spot any of the following:
- Hidden openings found during inspections
- Old intumescent sealant that has split away
- Damaged fire seals in risers and voids
- Fire stopping installed outside its tested range
In a school such as Tetsworth Primary School, fire-rated sealant goes in around service penetrations where it is specified.
Questions to ask before you book
- Is depth set with backing rod, or bond-breaker tape in shallow joints?
- How the existing material will be dealt with
- Their public liability cover
- Can the work be phased to keep areas open?
Fire stopping in Tetsworth
Penetration seals are fire tested to BS EN 1366-3 and linear joint seals to BS EN 1366-4, with results classified under BS EN 13501-2. A rating such as EI 60 only holds when the product is installed as it was tested. So our job is to reproduce that arrangement faithfully. The enquiries we see most involve penetration schedules that need working through and improvised or mixed-product fire seals, across pipe penetrations, linear gaps at wall heads and joints between fire-resisting walls and floors. Whether you call it commercial sealant work, mastic application or joint sealing, in Tetsworth it comes down to the same thing: the right product in a properly prepared joint.
Barn and farm-building conversions near places like Tetsworth often combine new partitions with old walls. A penetration seal only performs as tested if product, substrate, service, gap and depth all match the detail.
We stand by our work with a 12-month guarantee. It covers how we prepared and applied the sealant, and if something we did falls short, we return to it.
- Where
- Tetsworth (OX9)
- Region
- Oxfordshire
- Cover
- 12 months on our workmanship
- Quotes
- A fixed quote before we start
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026

Your questions answered
Does your area include sites such as Christmas Hill Business Park, near Tetsworth?
Yes. We cover Tetsworth and the area around it, including industrial estates, business parks and retail parks such as Christmas Hill Business Park. Photos and a short description are enough for a first look.
Can you work on a hospital site such as Thame Community Hospital?
Yes, hospitals are one of the sectors we cover. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.
Will you just go over the old sealant?
No, never. Overlaying old sealant is a frequent cause of early failure, so everything comes out first.
Is your workmanship covered by a guarantee?
Yes, for 12 months. If a joint fails because of how we installed it, we come back and put it right.
Will you quote for a small job?
Small jobs are welcome alongside larger packages. Send details for a fixed quote.
What will the job cost?
That depends on the job: the volume of work, the access, the specified product and how it’s phased. Call for a quote.
How do we ask for a quote?
You can use the quote form on this site; alternatively, call the office on 01277 525 020 or send photos by email. Photos, drawings or a joint schedule help us quote quickly.
Quoting for work in Tetsworth
A fixed quote reflects the actual work. It takes account of:
- Induction, permit and paperwork requirements
- Phasing around occupants
- Quantities, in metres or numbers
- Backing rod, priming and other preparation
We don’t publish prices, because the scope varies so much from one building to the next. For a fixed figure, call for a quote.
Sending details for a quote
However big the job, these details speed things up:
- Clear photos of the problem areas
- How the joints are reached, and at what height
- Where the site is, with the postcode
- Rough lengths or quantities, or drawings if you have them
Tell us about the building, the joints and when you need the work done, and a fixed quote will follow. To get it moving, speak to us on 01277 525 020 or use the quote form.
Surface by surface
Drylining partitions
Service holes through plasterboard are frequently oversized or ragged. An oversized hole may be outside the sealant’s range, and the detail may call for board patching or another product.
Linear joints
Head-of-wall gaps, slab edges and wall junctions are linear joints. BS EN 1366-4 testing sets the joint widths, depths, backing and movement a seal covers and the installation has to fit inside those limits.
Fire-rated sealing for Tetsworth buildings
At about 42 miles from central London, Tetsworth is within reach of the capital. Tenant changes on commuter-belt business parks mean regular fit-outs, and new services through compartment walls; the gaps need the specified seal. 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.
Hospital estates such as Thame Community Hospital, 2.8 miles to the north-east of Tetsworth, are divided into fire compartments, and any service penetration through them should be sealed to the specified, tested detail. Older community buildings such as Church of St Giles that have been rewired or given new heating can have service gaps through walls worth checking against the specification.
Tetsworth is about 3 miles south-west of Thame, in Oxfordshire. Commercial clients in Tetsworth use us for work on service penetrations, as part of our coverage of Oxfordshire. 423 places across Oxfordshire fall within our area, Tetsworth among them. Sites around Oxford have their own page, roughly 10 miles from Tetsworth.
Anyone looking for fire stopping in OX9 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. Buildings on High Street, Swan Gardens and Back Street are within our area for service penetrations. We also cover North Weston (2 miles north), Milton Common (3 miles north-west), Albury (3 miles north-west), Great Haseley (3 miles west) and Tiddington (3 miles north-west). A short drive away, we cover Oxford (10 miles west), Didcot (12 miles south-west), Bicester (15 miles north-west), Abingdon-on-Thames (12 miles west), Thame (3 miles north-east) and Henley-on-Thames (13 miles south).
What’s near Tetsworth
Recent enquiries here include premises near The Swan pub, among other places. For rail, the closest station is Haddenham & Thame Parkway station, roughly 5 miles north-east of the centre. Nearby you will also find Thame Museum (2.9 miles north) and Thame Community Hospital (2.8 miles north-east). Open spaces near Tetsworth include Wells Farm and Bald Hill.
Commercial clients in Tetsworth
We take on planned maintenance as well as one-off repairs: working through a building or an estate in stages that fit your budget. Sites in Tetsworth can sit alongside others in a wider programme across Oxfordshire.
Blocks and communal areas make up much of the work for housing associations and agents. Work can be phased so residents and staff keep access throughout, with each stage agreed with your site contact.
On site: what to expect
Site rules come first: signing in, inductions and any permit to work. With the paperwork done, we take the joints in the sequence agreed with you, and each area is checked before we leave it. Smaller jobs around Tetsworth can be grouped with others nearby. You will have a fixed quote before work starts.
- We read the specification, drawings or penetration schedule you send and raise any questions before we price.
- Every penetration is compared with its detail: wall or floor type, service, gap size and depth.
- Anything that doesn’t belong in the opening, such as expanding foam or general-purpose filler, is removed.
- Mineral wool or other backing goes in wherever the detail asks.
- We apply the specified sealant to the depth and around the services as the detail shows.
- Openings that need a collar, wrap, batt or other product are flagged to you rather than filled with sealant.
Preparing the site
- Confirm the product named in the specification
- Let us know about inductions and permits
- Move anything stored against the joints
Getting a fixed quote
The quickest route to a quote is a few photos and the site postcode. Send them through the quote form, or give us a call on 01277 525 020 or email drawings and photos if you’d rather talk the job through.
Related advice
Places near Tetsworth
Also in Tetsworth
Maintenance after handover
A few simple habits keep the new joints working:
- Keep general-purpose fillers away from compartment walls
- Get seals inspected before ceilings and boxing close
- Include service cupboards in routine inspections
- Leave fire sealant to cure fully before covering it
Add risers, plant rooms and ceiling voids to routine fire-stopping checks. Look for cracks, unsealed new cables and gaps that have been enlarged, and report them promptly.
Ask every contractor who works in risers or voids to report openings they create. It costs little and catches breaches early.