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

Fire-rated sealing and fire stopping in Childrey, Oxfordshire

Sealant work in Childrey for main contractors, managing agents and facilities managers: fire-rated and intumescent sealing of service penetrations and linear gaps, quoted at a fixed price.

  • Improvised or mixed-product fire seals
  • Penetration schedules that need working through
  • Openings left by services added after handover
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
12-month guarantee on our workmanship.
London, the South East & Scotland
Constructionline member
£5m public liability

Fire stopping in Childrey

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

About our fire stopping in Childrey

We are commercial sealant applicators, CHAS accredited and a Constructionline member, with CSCS-carded applicators on site. We hold no third-party fire-stopping installer certificate and we’d rather say that up front. What we offer is careful installation of the specified sealant to its tested detail, with a 12-month guarantee on our workmanship. The enquiries we see most involve old intumescent sealant that has split away and fire stopping installed outside its tested range, on linear gaps at wall heads, pipe penetrations and service gaps in risers. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: in Childrey, that means joint design, primers and backing rod as standard.

Rural conversions around Childrey can put new fire-resisting partitions inside older structures. A penetration seal only performs as tested if product, substrate, service, gap and depth all match the detail.

Our workmanship is guaranteed for 12 months. If our installation lets you down in that time, we return and fix it.

Location
Childrey (OX12)
Region
Oxfordshire
Cover
12 months on our workmanship
Quote
Fixed quote, scope in writing
Phone
01277 525 020
Page updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

Commercial clients in Childrey

Hospitality, education, healthcare, office and retail clients book us directly too. The work is planned around how the building runs, so guests, pupils, patients or staff are disturbed as little as possible.

We work for building owners and managing agents on sealant work across single buildings or whole portfolios around Childrey. One quote can cover more than one site, which keeps the paperwork simple.

Cost factors for service penetrations

Each job is priced on its own details. The main factors are:

  • Backing rod, priming and other preparation
  • Whether the work must be split into stages
  • Location, for remote and island sites
  • Induction, permit and paperwork requirements

Pricing service penetrations depends on how many there are, their condition and the access, and any specification that applies. Call for a quote.

What we need to price the job

There’s no need for a formal survey. A few details are enough to get going:

  • Whether an asbestos survey exists
  • Your programme or deadline
  • Photos of the joints, close up and from further back
  • How the joints are reached, and at what height

For a fixed quote, ring 01277 525 020 or email the details over, telling us the site location and the nature of the job. Our quote form is another easy route.

Diagnose, treat, sign off

In a busy building, the work is phased so only one area is out of use at a time. Each section is protected, cleaned back and sealed, then handed back before we move to the next. For work around Childrey, we aim to finish in one visit, so photos and measurements up front really help. That way the right products come on the day.

  1. We read the specification, drawings or penetration schedule you send and ask about anything unclear.
  2. On site, each opening is checked against the tested detail it is meant to follow.
  3. Anything that doesn’t belong in the opening, such as expanding foam or general-purpose filler, is removed.
  4. Mineral wool or other backing goes in wherever the detail asks.
  5. We apply the specified sealant to the depth and around the services as the detail shows.
  6. Openings that need a collar, wrap, batt or other product are flagged to you rather than filled with sealant.

Before we start on site

  • Have the specification and drawings to hand
  • Send your site hours and access windows
  • Point out parking and an unloading spot

Get a fixed quote

Every job follows the same four steps: send details, get a quote, we seal, guaranteed. The first step is to speak to us on 01277 525 020 or email drawings and photos with what you know.

Get a price

Advice

Your questions answered

Do you cover business parks and estates near Childrey, such as W&G Industrial Estate?

Yes. Our area takes in Childrey and its surroundings, with estates and business parks such as W&G Industrial Estate included. Send details of the unit and the work through our quote form for a quick quote.

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

From 2 September 2029, Approved Document B drops its BS 476 references in favour of BS EN 13501-2 classification, with transitional arrangements. Our part doesn’t change: the specified product, to its tested detail.

Will you come and look before quoting?

That depends on the size and complexity of the job. Straightforward work can often be priced from photos and measurements, and bigger or more complex jobs typically get a visit.

Can you fit around our working hours?

We are in the office from 8am until 5pm, Monday to Friday. Tell us your site hours and access windows and the work will be fitted around them.

Can you follow the specification on our project?

Yes. The specification and the manufacturer’s installation guidance are what we work to.

Do you take on small jobs?

We quote for single jobs as well as large packages and programmes. Send details for a fixed quote.

Are your applicators CSCS-carded?

Yes. Should the site need card details in advance, tell us and we’ll confirm them with the quote.

When to call us in Childrey

On a busy project, programme pressure can mean fire stopping is rushed or left to whichever trade is closest. That is when untested combinations creep in, which then have to be put right.

Most enquiries start with one or more of the following:

  • Openings left by services added after handover
  • Unsealed penetrations discovered above suspended ceilings
  • Fire seals cut back for extra cables and never reinstated
  • Fire stopping installed outside its tested range

For a building such as Church of St Mary, new heating or data runs are the usual reason penetrations need sealing.

Questions to ask before you book

  • Their public liability cover
  • Is depth set with backing rod, or bond-breaker tape in shallow joints?
  • Which product they’ll use, and why it suits the joint
  • How they handle RAMS and site documents

How to choose a sealant contractor

When it isn’t the sealant

Not every problem is a sealant problem, and we’d rather tell you before you spend money. These need a different solution:

  • Approving the work on behalf of building control
  • Fire doors, dampers or other fire safety equipment
  • Gaps in walls that were never built as compartment walls

If in doubt, call the office on 01277 525 020 or email drawings and photos and we will say what we think before you book.

Where we work in Childrey

  • Joints between fire-resisting walls and floors
  • Service gaps in risers
  • Cable penetrations
  • Pipe penetrations
  • Small duct penetrations where the tested detail allows
  • Linear gaps at wall heads

Compartment walls and floors in Childrey

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. Childrey lies roughly 60 miles out from central London. Offices around the capital are refitted often, and the cabling that follows can breach fire-resisting walls, and the gaps need sealing with the specified product.

Holiday works at schools like The Ridgeway Church of England (C) Primary School often leave service openings to seal before pupils return. Industrial units on estates such as W&G Industrial Estate (1.1 miles north-east of Childrey) often separate offices from warehouse space with fire-resisting walls, and new services through them need the specified seal.

Childrey is about 2 miles west of Wantage, in Oxfordshire. Childrey sits inside our coverage, with the same fixed quotes and 12-month guarantee as everywhere else. 423 places across Oxfordshire fall within our area, including Childrey. We also cover Oxford, some 16 miles away.

Anyone looking for fire stopping in OX12 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. Buildings on High Street, Hollow Way and Stowhill are within our area. We also cover West Challow (1 mile north-east), East Challow (1 mile east), Letcombe Regis (1 mile south-east), Letcombe Bassett (2 miles south-east) and Wantage (2 miles east). Nearby towns on our patch include Didcot (10 miles east), Abingdon-on-Thames (11 miles north-east), Witney (14 miles north), Carterton (14 miles north), Grove (3 miles north-east) and Faringdon (7 miles north-west).

Near you in Childrey

We work on buildings around King Alfred's and The Hatchet Public House. Other landmarks nearby include Williams F1 Grand Prix Collection (3.8 miles north-east). Open spaces near Childrey include Letcombe Valley and Chain Hill.

Map of Childrey © OpenStreetMap contributors

When to bring in a specialist

Paperwork matters too. Many sites expect CSCS cards, RAMS and proof of insurance, and our CSCS-carded applicators are used to working under those rules.

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 normally costs more in the end than doing them right.

Accreditations

Trusted. Accredited. Insured.