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

Fire-rated sealing and fire stopping in Fencott, Oxfordshire

Planning work on a service penetration in Fencott? We look at it, seal it with the right product and hand it over with a 12-month guarantee.

  • Penetration schedules that need working through
  • Hidden openings found during inspections
  • Damaged fire seals in risers and voids
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
London, the South East & Scotland
CHAS accredited
£5m PL insurance

Fire stopping near Fencott

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

Fire stopping in Fencott

Facilities managers in Fencott often find open service penetrations when ceilings come down for other work. Where the walls and floors already have a fire-stopping specification, we can work to it, matching the product and detail it names. Where there isn’t one, the designer or fire engineer needs to set one first. If you have openings found when ceilings come down for a refit and expanding foam used as fire stopping, we can put it right, whatever the surface. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, in Fencott it comes down to the same thing: the right product in a properly prepared joint.

Around smaller places like Fencott, penetration seals come up in schools, halls, pubs with rooms, care homes and farm buildings used as offices. If sealant is what the specification names, we install it around the services exactly as the maker’s detail sets out.

Building owners and contractors get the same cover: a 12-month guarantee on our workmanship. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.

The Mastic Doctor team standing beside their branded vans outside an office building
Where
Fencott (OX5)
Wider area
Oxfordshire
Cover
12 months on our workmanship
Quotes
Quoted before any work starts
Telephone
01277 525 020
Updated
3 November 2026

For managing agents and facilities managers

Planned maintenance programmes are welcome: resealing failed joints building by building, on a schedule that suits your budget. Fencott can form part of a wider programme across Oxfordshire.

When you manage a building on behalf of an owner, clear figures and clear communication matter. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative.

FAQs: Fencott

What does the BS 476 change mean for fire-rated sealant in Fencott?

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.

Can you work on a hospital site such as Bicester Community Hospital?

Yes. We work in healthcare settings as well as offices and schools. The estates team’s permit system and infection-control rules come first, and the work is planned around them.

Do you work to architects’ specifications?

Yes. Send it with your enquiry, and the quote will be based on it.

Will you quote for a small job?

Single areas, one-off repairs and whole buildings are all quoted the same way: send details, get a fixed quote, we seal, guaranteed.

Can staff carry on working while you are here?

Normally, yes. We phase the work so most of the building stays in use, with each area protected and signed.

Can one quote cover more than one building?

Yes. Several buildings can share a single quote, with one point of contact across South East England, Greater London and Scotland.

How long before the joints can be used?

The product and site conditions decide that. Some products skin over quickly but need longer to cure fully, and we confirm it before leaving site.

Compartment walls and floors in Fencott

Fire stopping of openings and penetrations in England falls under Approved Document B. 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. Our part stays the same: the specified product, installed to its tested detail. At about 52 miles from central London, Fencott is within reach of the capital. Tenant changes on commuter-belt business parks mean regular fit-outs, and new services through compartment walls.

Schools such as Charlton-on-Otmoor Church of England Primary School often have new data and services installed during holidays, and penetrations through fire-resisting walls should be checked afterwards.

Fencott is about 4 miles south of Bicester, in Oxfordshire. Commercial clients in Fencott can call on us for service penetrations, as part of our coverage of Oxfordshire. 423 places across Oxfordshire fall within our area, Fencott among them. Oxford is covered too, some 7 miles away.

Postcode districts covered here: OX5 for service penetrations. Close to Fencott, our area also takes in Murcott (1 mile south-east), Charlton-on-Otmoor (1 mile west), Merton (1 mile north), Upper Arncott (2 miles east) and Wendlebury (2 miles north-west). Bigger towns within reach include Oxford (7 miles south-west), Bicester (4 miles north), Abingdon-on-Thames (12 miles south-west), Witney (14 miles west), Thame (11 miles south-east) and Kidlington (5 miles west).

What’s near Fencott

Locally, jobs take us to sites close to The Crown pub. The nearest railway station is Islip station, roughly 3.2 miles west of the centre. Other landmarks nearby include Bicester Avenue (3.2 miles north) and Bicester Community Hospital (3.8 miles north). For a walk, there’s Otmoor RSPB reserve and Graven Hill.

Map of Fencott © OpenStreetMap contributors

What the job involves on each surface

Linear joints

Head-of-wall gaps, slab edges and wall junctions are linear joints. Their tested detail, under BS EN 1366-4, sets the width, depth, backing and movement allowed, and we work within it.

Plastic pipes

Plastic pipes soften and collapse in a fire. Some intumescent sealants are tested on smaller plastic pipes, but many need a collar or wrap. We confirm material and size first and tell you if sealant isn’t the right product.

Our process

Site rules come first: sign-in, induction and whatever permit system the building uses. With the paperwork done, we take the joints in the sequence agreed with you, and each area is checked before we leave it. Jobs in and around smaller places like Fencott are typically planned as a single visit, so photos and measurements up front really help. Then the right materials arrive with us.

  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 so the seal starts clean.
  5. Backing and fire-rated sealant are installed to the detail and tooled.
  6. Anything outside the detail is reported to you rather than sealed.

What we need from you

  • For older buildings, check the asbestos register before work
  • Arrange parking or a loading space
  • Send any specification or drawings in advance

Quotes

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 photos and a few notes.

Ask for a quote

Read more

When to call us in Fencott

Some seals fail because the wrong product went in: expanding foam or a general-purpose sealant pushed into a gap to tidy it. The opening looks sealed but has no fire test evidence behind it.

What tends to prompt an enquiry:

  • Openings found when ceilings come down for a refit
  • Unsealed openings around new pipes and cables
  • Seals disturbed by maintenance and left open
  • Improvised or mixed-product fire seals

Theatres, wards and plant rooms at sites like Bicester Community Hospital, 3.8 miles north of Fencott, all have compartment walls crossed by services.

Comparing quotes

  • What level of public liability insurance do they hold?
  • Is depth set with backing rod, or bond-breaker tape in shallow joints?
  • Whether primer will be used where the manufacturer specifies it
  • How they handle RAMS and site documents

Questions to ask before you appoint anyone

Why it’s worth doing now in Fencott

Sealing behind the M&E trades area by area beats a sweep at the end. While the area is still open, every opening is easy to see and reach, and the right detail can be checked at the time. Halls, stores and units around places like Fencott may not be checked every day, so a failed joint can leak for a while before anyone sees it. Resealing early avoids that.

There’s no price list, because the scope varies so much from one building to the next. Call for a quote.

Why us?

  • Constructionline member for supplier checks
  • CSCS-carded applicators
  • Sealing commercial buildings since 2005
  • Fully insured

Take a look at our cost guide and our accreditations.

Doing it in-house

For a quick touch-up, site staff may be fine, but anything bigger is another matter: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.

Some joints are best left to specialists: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. Getting these wrong usually costs more in the end than doing them right.

Accreditations

Trusted. Accredited. Insured.