Fire-rated sealing and fire stopping in Steventon, Oxfordshire
Fire-rated and intumescent sealing of service penetrations and linear gaps in Steventon. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- Fire sealant pulled out of the opening
- Head-of-wall gaps with no fire seal
- Expanding foam used as fire stopping
Fire stopping for Steventon sites
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
How a job runs
Occupied buildings need a little choreography. We sign and contain the area we’re in, with routes through the building left open and move on in phases so staff and visitors can carry on around us. If others near Steventon need work, visits can be combined. A fixed quote is given before anything starts.
- First we go through the drawings, schedule or specification for the seals and ask about anything unclear.
- Every penetration is compared with its detail: wall or floor type, service, gap size and depth.
- Unsuitable fillers and loose debris are taken out of each opening.
- Mineral wool or other backing goes in wherever the detail asks.
- Fire-rated or intumescent sealant is gunned in to the specified depth, then tooled.
- If an opening needs something other than sealant, we tell you instead of improvising.
Before we start on site
- Have the specification and drawings to hand
- Agree which areas must stay open
- Explain the parking and delivery arrangements
Quotes
We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To ask for one, give us a call on 01277 525 020 or email drawings and photos.
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Fire stopping in Steventon, done properly
The test standards are BS EN 1366-3 for penetration seals and BS EN 1366-4 for linear joints 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. So our job is to reproduce that arrangement faithfully. If you have openings left by services added after handover and unsealed joints where partitions meet the slab, we can help, on joints between fire-resisting walls and floors, small duct penetrations where the tested detail allows and cable penetrations alike. Whoever orders the work in Steventon, the brief is usually the same: a clear scope, tidy work and joints that don’t fail again.
A job near Steventon is typically planned around one visit, with the specification and photographs sent in advance. Design and sign-off belong to the designer or building control; we install what’s specified.
Every job we finish is backed by a 12-month workmanship guarantee, in Steventon as everywhere else we work. If a joint we sealed fails because of how it was installed, we come back and put it right.
- Where
- Steventon (OX13)
- Region
- Oxfordshire
- Cover
- 12 months on our workmanship
- Quote
- A fixed quote before we start
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
Fire-rated sealing for Steventon buildings
In England, Approved Document B covers fire stopping of 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. At about 54 miles from central London, Steventon 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.
Holiday works at schools like St Michael's Church of England Primary School often leave service openings to seal before pupils return. Hotels like Steventon House Hotel, 0.9 miles south-east of Steventon, are refurbished in phases, and each phase can open up compartment walls. For a building such as Church of St Michael and All Angels, new heating or data runs are the usual reason penetrations need sealing.
Steventon is about 3 miles west of Didcot, in Oxfordshire. Looking for fire stopping in Steventon? We can help. Steventon is one of 423 places in Oxfordshire on our list. Our Oxford page has more on work in that area, about 10 miles away.
Anyone looking for fire stopping in OX13 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, St Michael's Way and Hanney Road are within our area. Nearby places we also cover include Milton Heights (1 mile south-east), Milton Hill (1 mile south-east), Drayton (2 miles north), Sutton Wick (2 miles north-east) and Marcham (3 miles north). A short drive away, we cover Oxford (10 miles north-east), Didcot (3 miles east), Abingdon-on-Thames (4 miles north-east), Witney (13 miles north-west), Carterton (15 miles north-west) and Wantage (5 miles south-west).
Landmarks near Steventon
Recent enquiries here include premises near The North Star Public House. The nearest railway station is Didcot Parkway station, roughly 3.6 miles east. A little further out are FitzHarris Castle (3.9 miles north-east) and Atlas Computer Laboratory (3.5 miles south). For a walk, there’s Chain Hill and Mowbray Fields.
What happens if it’s left?
A seal that doesn’t match its tested detail gives false comfort. The fix is to remove it and reinstall to the detail. Older rural buildings around Steventon move with the seasons, and rigid or tired sealant can’t keep up. The right product, sized to the joint, copes much better.
Cost follows what’s involved: stripping out, preparation, sealing, access and phasing. Call for a quote.
Why choose Mastic Doctor in Steventon
- Health and safety: CHAS accredited
- Joints cleaned back to sound surfaces
- A Constructionline member, so easy to vet
- Fully insured
Read our cost guide and our accreditations.
Surface by surface
Small ducts
Ducts are only sealed with sealant where the detail allows it. Dampers and ductwork systems themselves are outside our work.
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 and we confirm each before sealing.
Keeping the joints sound
To get the most from the new sealant:
- Check with the data sheet before painting over fire sealant
- Check risers and ceiling voids after each round of works
- Settle who seals which penetrations at the start of a project
- Have penetrations checked while they can still be seen
Allow the manufacturer’s stated cure time before boxing in or decorating. Some fire-rated sealants accept paint and some don’t, so check the product data first.
The simplest way to keep compartment walls intact is to plan fire stopping into every job that crosses them. That way the opening is sealed while the trade and access are still there.
FAQs: Steventon
Is a smaller place like Steventon outside your area?
No. Places such as Steventon are covered as much as the big towns. We cover Greater London and the counties of the South East. Where we can, we group nearby jobs to make the most of each trip.
Do you seal service penetrations in hotels around Steventon?
Yes, to the specification and the product’s tested detail. Each seal follows the tested detail, and rooms are done in turn.
Is your workmanship covered by a guarantee?
Yes. It runs for twelve months and covers how we prepared and sealed the joints, but not damage, misuse or other trades’ work.
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.
Is any job too small?
Whatever the size, the process is the same: send details, get a fixed quote, we seal, guaranteed.
Can weather delay the job?
For external joints, yes. The joint has to be dry and within the product’s temperature range, so damp, frosty or very cold days can stop external work. Inside work is seldom held up.
How do we ask for a quote?
It works in four steps: send details, receive a fixed quote, we carry out the work, and it’s guaranteed. The first step only needs photographs and a postcode.
Building owners, agents and FMs in Steventon
As a CHAS accredited contractor and Constructionline member, we are straightforward to vet for your supplier list. Our insurance certificate can be sent along with the quote.
We take on planned maintenance as well as one-off repairs: resealing failed joints building by building, on a schedule that suits your budget. Sites in Steventon can sit alongside others in a wider programme.
Nearby places to Steventon
Other services in Steventon
When something else is needed
Not every problem is a sealant problem, and we’d rather tell you before you spend money. It won’t fix:
- Issuing fire ratings or certificates for seals
- Fire doors, dampers or other fire safety equipment
- Deciding what a wall or floor needs, which belongs to the designer
If you are not sure, just give us a call on 01277 525 020 or email a schedule or drawings and we’ll give you a straight answer.
Surfaces we seal
- Service gaps in risers
- Cable penetrations
- Linear gaps at wall heads
- Small duct penetrations where the tested detail allows
- Pipe penetrations
- Joints between fire-resisting walls and floors