The Mastic Doctor team standing beside their branded vans outside an office building
Oxfordshire · England

Fire-rated sealing and fire stopping in Kencot, Oxfordshire

Need fire stopping in Kencot? It’s simple: send details, get a quote, we seal, guaranteed.

  • Fire seals cut back for extra cables and never reinstated
  • Fire-stopping items raised at inspection or handover
  • Seals that don’t match their tested detail
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Signed off, with 12 months’ guarantee.
London, the South East & Scotland
Constructionline member
Fully insured: £5m PL

Fire stopping for businesses in Kencot

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

Fire stopping in Kencot, done properly

It helps to set out our role at the start. Deciding the specification sits with the designer, the fire engineer and building control; sign-off sits with them too. We fit the specified fire-rated sealant following that specification and the maker’s installation guidance. Site teams most often ask us about service penetrations left open after M&E works and unsealed joints where partitions meet the slab, across cable penetrations, joints between fire-resisting walls and floors and pipe penetrations. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in Kencot, preparation and product choice get the time they need.

Barn and farm-building conversions near places like Kencot often combine new partitions with old walls. Where a pipe or cable passes through a fire-resisting wall, the seal must match the tested detail: product, substrate, gap and depth.

We stand behind the joints we seal with a 12-month guarantee. That covers our preparation and application, and we come back if anything isn’t right.

Place
Kencot (OX18)
Wider area
Oxfordshire
Guarantee
12 months on our workmanship
Quote
A fixed quote before we start
Telephone
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

How the job changes by surface

Metal pipes

Copper and steel pipes are a common service penetration for fire-rated sealant. Pipe diameter, annular gap, sealant depth and any pipe insulation all have to match the detail and we confirm each before sealing.

Plastic pipes

Waste and drainage pipes through floors are a frequent case. Whether sealant alone is acceptable depends entirely on the tested detail, and we won’t substitute it for a specified collar.

Kencot: questions and answers

Is hospital work, at somewhere like Longworth Hospital, something you do?

Yes. We work in healthcare settings as well as offices and schools. Each area is agreed with the ward or department and the estates team in advance.

Is a smaller place like Kencot outside your area?

Not at all. Kencot is within our area. London and every South East county are within our area. Good photographs up front let us bring everything on the first visit.

Can you send site paperwork?

Let us know which documents the site needs, such as RAMS, an insurance certificate or CSCS details, and we’ll confirm them with the quote.

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.

What’s the quickest route to a quote?

The quote form is the simplest route, though you can also ring 01277 525 020 or send details through our quote form. Photos, drawings or a joint schedule help us quote quickly.

How do you deal with asbestos in old sealant?

Managing asbestos is the dutyholder’s responsibility, so we will ask for the register before work on an older building. If anything suspect turns up, we stop until it’s tested.

Do you offer coloured sealant?

In many cases, yes. Sealants are made in a wide range of standard colours, and matching to RAL references or nearby finishes is commonly requested. We confirm what’s available for the specified product when we quote.

Cost factors for service penetrations

Quotes vary with the job. Expect it to depend on:

  • Removal of failed or old sealant
  • Phasing around occupants
  • Induction, permit and paperwork requirements
  • How much there is to seal

Small jobs and large programmes are priced from the same things: scope, access, product and programme. Call for a quote, and you will have a fixed figure to work with.

What we need to price the job

A few photos plus some basic facts will normally do. Please tell us:

  • The type of building and who uses it
  • A wide shot and a close-up of the area
  • When you need the work done
  • The asbestos register, for older buildings

Quotes are fixed against the scope you send, so the cost is agreed before work starts. To ask for one, speak to us on 01277 525 020 or email a schedule or drawings.

Should maintenance staff do it?

Putting right a botched joint often costs more than sealing it well at the start, since all of it has to come out and the faces be cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.

A short, simple internal joint is often within reach of a maintenance team. Where it goes wrong is preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.

Diagnose, treat, sign off

Tell us your site hours and access windows and we’ll plan around them. While we are working, the area stays contained and tidy, and we check in with your contact before moving on to each new area. Rural sites near Kencot may need directions, gate codes or a contact on site. Add it to your enquiry and we’ll build it into the plan.

  1. We start with your penetration schedule, drawings or specification.
  2. Access, permits and the order of areas are agreed with the site team.
  3. Each opening is checked for wall or floor type, service, gap and depth.
  4. Unsuitable material is removed and the opening cleaned first.
  5. The specified backing and sealant go in to depth and are finished neatly.
  6. Anything outside the detail is reported to you rather than sealed.

Getting the site ready

  • Flag any permit to work we will need
  • Point out parking and an unloading spot
  • Clear stock, furniture or equipment away from the joints

Request a quote

Pricing a project or setting a maintenance budget? We will quote against your scope and drawings you can plan around. If you have questions first, speak to us on 01277 525 020 or use the quote form.

Get a quick quote

Advice

Leave it or put it right?

An open or wrongly sealed service penetration lets fire and smoke reach the next compartment much sooner than the building was designed for. While the openings can be reached, sealing them is normally straightforward. Left until ceilings are closed or a tenant moves in, the same work costs more access and more disruption. Around Kencot, it’s better to renew all the failing joints at once, rather than one at a time. Send photos of each area and we will quote for the lot.

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 and we will price your job on its own details.

What you get with us

  • Work to your specification and the manufacturer’s guidance
  • 12 months’ guarantee on every job
  • Our applicators hold CSCS cards
  • Health and safety: CHAS accredited

Read what affects the cost and our accreditations.

What we are called out for in Kencot

Head-of-wall joints and wall-to-wall junctions are frequent weak points. Movement in the frame or slab can open the joint. Linear joint details set a width range and movement capability, and the seal has to sit within them.

Clients typically get in touch after noticing something like this:

  • Improvised or mixed-product fire seals
  • Unsealed penetrations discovered above suspended ceilings
  • Fire sealant pulled out of the opening
  • Service penetrations left open after M&E works

For a unit at a site such as Carterton South Industrial Estate (1 mile north-east of Kencot), new power or data runs between office and warehouse can breach a compartment wall.

Before you book anyone

  • How the joint faces will be prepared and primed
  • Is depth set with backing rod, or bond-breaker tape in shallow joints?
  • Whether their applicators hold CSCS cards
  • The named product and why it was chosen

How to choose a sealant contractor

Fire-rated sealing for Kencot buildings

Approved Document B is the English guidance that covers fire stopping around openings and penetrations. References to the older BS 476 classes are being removed from it from 2 September 2029, after which the European classification, BS EN 13501-2, is the route, subject to transitional arrangements. What we install is set by the specification, and it goes in to the tested detail. Kencot lies roughly 67 miles out from central London. Office refits around the commuter belt bring new cabling through fire-resisting walls.

For a building such as Church of St Peter, new heating or data runs are the usual reason penetrations need sealing. For a school such as St Peter's Church of England School, penetration sealing fits best at the end of the summer works.

Kencot is about 2 miles south-west of Carterton, in Oxfordshire. Commercial clients in Kencot use us for work on service penetrations, as part of our coverage of Oxfordshire. We work across 423 places in Oxfordshire. Sites around Oxford have their own page, about 16 miles away.

We cover the OX18 postcode districts. Sites close to Kencot are covered too, including Alvescot (1 mile south-east), Shilton (2 miles north) and Bradwell (3 miles north-west). Nearby towns on our patch include Abingdon-on-Thames (15 miles east), Witney (6 miles north-east), Wantage (13 miles south-east), Grove (12 miles south-east), Faringdon (6 miles south) and Kidlington (15 miles east).

Around Kencot

Around Kencot, our work takes us to commercial buildings near The Plough pub and Carterton Community College. Well-known places in the area include Swinford Museum (1.9 miles west) and Longworth Hospital (5.9 miles south).

Map of Kencot © OpenStreetMap contributors
Accreditations

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