
Souldern fire stopping
Fire stopping for Souldern, from a contractor working since 2005. Fully insured and CHAS accredited.
- Fire-rated sealant that has cracked or shrunk back
- Openings left by services added after handover
- Unsealed joints where partitions meet the slab
Fire stopping in Souldern
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Fire stopping in Souldern, done properly
Every service that crosses a compartment wall or floor leaves an opening, and that opening needs sealing to hold back fire and smoke. Our part is installing fire-rated and intumescent sealant at those openings and along linear gaps, where the specification calls for it. Each seal follows the manufacturer’s tested detail. If you’re dealing with improvised or mixed-product fire seals and unsealed joints where partitions meet the slab, we can put it right, on linear gaps at wall heads, joints between fire-resisting walls and floors and small duct penetrations where the tested detail allows alike. A single leaking joint is often how a building in Souldern first comes to us: we check the joints around it and give you an honest view of what needs doing now and what can wait.
A job near Souldern is typically planned around one visit, so send the specification and photos first. We install to the specification and the manufacturer’s guidance, leaving design and sign-off with the designer and building control.
The 12-month guarantee is for workmanship rather than wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we are clear about what is covered before work starts.

- Place
- Souldern (OX27)
- Wider area
- Oxfordshire
- Guarantee
- 12 months on our workmanship
- Price
- A fixed quote before we start
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026
Do you need fire stopping in Souldern?
A common fault is a product that was never fire-rated in the first place: builders’ foam or ordinary silicone used to fill a hole. It may look closed, but it has no tested fire performance in that position.
If one of these sounds familiar, it’s time for a closer look:
- Non-fire-rated filler around services
- Fire-stopping items raised at inspection or handover
- Damaged fire seals in risers and voids
- Openings left by services added after handover
For a building such as Church of the Annunciation to the Blessed Virgin Mary, new heating or data runs are the usual reason penetrations need sealing.
What your quote should include
- Will failed sealant be removed rather than covered?
- Is depth set with backing rod, or bond-breaker tape in shallow joints?
- Are they CHAS accredited or on Constructionline?
- How the joint faces will be prepared and primed
What else we do in Souldern
What happens if it’s left?
Open service penetrations matter on ordinary days, not just in a fire: they also carry noise, draughts and smells between rooms. The specified fire seal closes the gap for all of these and the building feels the difference. Around Souldern, it’s better to renew all the failing joints at once. Send photos of each area and we will quote for the lot.
Whether it’s a single area or a whole estate, the same things set the price: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote, and you’ll have a fixed figure to work with.
Why choose Mastic Doctor in Souldern
- Public liability insurance in place
- One number for every site we cover
- CHAS accredited
- A Constructionline member, so easy to vet
Take a look at our cost guide or our accreditations.
Work for main contractors and building owners
Housing associations and managing agents often need work done across blocks and communal areas. We phase the work so people keep access, with each stage agreed with your site contact.
Facilities managers want contractors who arrive with the paperwork sorted. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we’ll confirm them with the quote.
On site: what to expect
We follow your site rules from the start: sign-in, induction and whatever permit system the building uses. With the paperwork done, the joints are worked through in the order agreed with your site contact. Jobs in and around smaller places like Souldern are typically planned as a single visit, so we ask for photos and rough sizes first. That way the right products come on the day.
- First we go through the drawings, schedule or specification for the seals and raise any questions before we price.
- 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.
- 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.
Getting the site ready
- Tell us which areas need to stay in use
- Share your working hours and any access restrictions
- Share the asbestos register for older buildings
Getting a fixed quote
Every job follows the same four steps: send details, get a quote, we seal, guaranteed. To take the first step, phone 01277 525 020 or email drawings and photos.
Read more
Maintenance after handover
A few simple habits keep the new joints working:
- Agree the fire-stopping specification before services go in
- Make fire stopping part of every scope that crosses a fire-resisting wall
- Don’t let anyone top up a fire seal with the wrong product
- Arrange inspection before areas are covered up
Don’t patch a fire-rated seal with anything outside its tested detail. A repair should use the original product, installed the same way unless the designer specifies otherwise.
Looking at service areas on a regular cycle pays off. A cracked or disturbed seal found early is a small job.
Surface by surface
Small ducts
Ducts are only sealed with sealant where the detail allows it. The ductwork, its supports and any dampers are for the ductwork contractor.
Cables and cable bundles
Cable penetrations are frequently sealed with fire-rated sealant where the detail allows. The detail limits bundle size and the gaps between and around cables, so we check before sealing.
Fire-rated sealing for Souldern buildings
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. What we install is set by the specification, and it goes in to the tested detail. At about 59 miles from central London, Souldern is within reach of the capital. Office refits around the commuter belt bring new cabling through fire-resisting walls.
In a hotel such as The Cartwright Arms Hotel, 1.2 miles to the north of Souldern, new pipework or cabling through bedroom and corridor walls needs sealing with the specified product. On a hospital site such as Brackley Community Hospital (5.5 miles north-east of Souldern), fire-rated sealant goes in where the specification calls for it, with the work planned around the estates team’s permits.
Souldern is in Oxfordshire. We cover commercial sites throughout Souldern, for single jobs and planned programmes alike. Souldern is one of 423 places we cover in Oxfordshire. Sites around Oxford have their own page, about 16 miles away.
Anyone looking for fire stopping in OX27 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. Streets here include High Street, Foxhill Lane and Fox Lane, and sites on any of them can send details for a fixed quote. If your building is just outside Souldern, we cover Fritwell (1 mile south), Clifton (2 miles west), Somerton (2 miles south-west) and Fewcott (3 miles south-east). Bigger towns within reach include Banbury (7 miles north-west), Bicester (6 miles south-east), Kidlington (11 miles south), Headington Quarry (15 miles south), Bure Park (6 miles south-east) and Chipping Norton (13 miles west).
Near you in Souldern
Around Souldern, our work takes us to commercial buildings near The Fox pub, among other places. The nearest railway station is Kings Sutton station, roughly 3.4 miles north-west of the centre. Well-known places in the area include Brackley Community Hospital (5.5 miles north-east) and Ardley Castle (2.7 miles south-east).
Your questions answered
Will you take on work at estates like Baynards Green Trading Estate, close to Souldern?
Yes. Estates, retail parks and business parks around Souldern, Baynards Green Trading Estate among them, are all within reach. To start, just give us a call on 01277 525 020 or send details through our quote form with the unit, the joints involved and your access times.
How does the removal of BS 476 from Approved Document B affect fire-rated sealing in Souldern?
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.
Is Souldern in your area?
Yes. Souldern is in our area and the rest of Oxfordshire, within our coverage of Greater London, South East England and Scotland. To discuss a job, give us a call on 01277 525 020 or send details through our quote form.
Can the sealant be colour-matched?
That depends on the product. Some ranges offer many colours, others very few, so we’ll confirm the colours available for the specified product with the quote.
Can you fit around our working hours?
Give us your site hours and any access windows in your enquiry, and we’ll plan around them. You can reach the office between 8am and 5pm, Monday to Friday.
Do you hold CHAS accreditation?
Yes. Mastic Doctor is CHAS accredited and a Constructionline member, which helps with supplier vetting.
How much does the work cost?
Every job gets its own fixed quote. For yours, phone 01277 525 020 or email us with a description of the work.