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

Fire Stopping in Coleshill

Fire-rated and intumescent sealing of service penetrations and linear gaps in Coleshill and across Buckinghamshire. CHAS accredited and fully insured, with a 12-month guarantee.

  • Snag lists that include open service penetrations
  • Fire sealant pulled out of the opening
  • Unsealed joints where partitions meet the slab
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Signed off, with 12 months’ guarantee.
Covering the South East & Scotland
CHAS accredited
Fully insured: £5m PL

Need fire stopping in Coleshill?

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

About our fire stopping in Coleshill

Sealant is the specified answer for plenty of openings, such as metal pipes, cables and some small ducts where the detail covers them. Larger openings and some plastic pipes call for collars, wraps, batts or boards instead. If the detail calls for something other than sealant, we say so rather than force sealant into it. We work on pipe penetrations, cable penetrations and small duct penetrations where the tested detail allows, and the failures we are asked to look at most are unsealed penetrations discovered above suspended ceilings and openings left by services added after handover. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in Coleshill, preparation and product choice get the time they need.

Rural conversions around Coleshill can put new fire-resisting partitions inside older structures. Where a pipe or cable passes through a fire-resisting wall, the seal must match the tested detail: product, substrate, gap and depth.

Every job we finish is backed by a 12-month workmanship guarantee, wherever the site is. If our installation lets you down in that time, we return and fix it.

Where
Coleshill (HP7)
Wider area
Buckinghamshire
Cover
A 12-month guarantee
Quote
Fixed quote, scope in writing
Telephone
01277 525 020
Updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

How the job changes by surface

Masonry and concrete

Many seals are made in blockwork, brickwork or concrete slabs. Dust and loose debris are cleared out of the opening, so the sealant and any backing sit properly.

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.

How a job runs

Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Any old material is cut back to clean, sound faces, the manufacturer’s primer is applied where it’s called for, and the sealant is tooled off neatly. If others near Coleshill need work, visits can be combined. You’ll have a fixed quote before work starts.

  1. First we go through the drawings, schedule or specification for the seals and raise any questions before we price.
  2. Every penetration is compared with its detail: wall or floor type, service, gap size and depth.
  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. Fire-rated or intumescent sealant is gunned in to the specified depth, then tooled.
  6. If an opening needs something other than sealant, we tell you instead of improvising.

Before we start on site

  • Arrange parking or a loading space
  • Warn occupants and staff about the work
  • Confirm the product named in the specification

Quotes

Specifications, drawings and tender packages are welcome with any enquiry, and we’ll price against exactly what is specified. Smaller jobs need nothing more than photographs and a few notes.

Ask for a quote

Advice

What we’re called out for in Coleshill

Linear gaps fail where a fire-resisting wall meets a slab, soffit or another wall. Deflection and building movement can open these gaps, and the wrong product can split as a result. The tested detail for a linear joint states the width and movement it covers.

Any of the following is a good reason to get the joints checked over:

  • Damaged fire seals in risers and voids
  • Unsealed openings around new pipes and cables
  • Snag lists that include open service penetrations
  • Builders’ foam or ordinary silicone in compartment walls

For a hospital such as Amersham Hospital (1.1 miles north of Coleshill), penetration sealing is usually phased ward by ward, with infection-control rules agreed first.

What to look for in a quote

  • Will RAMS and insurance details be available?
  • The named product and why it was chosen
  • Is depth set with backing rod, or bond-breaker tape in shallow joints?
  • Whether old or failed sealant will be cut out, not overlaid

How to choose a sealant contractor

Cost factors for service penetrations

To price the job, we consider:

  • The site’s rules and procedures
  • How much there is to seal
  • Travel to remote or island sites
  • Working within restricted access windows

The product called for affects the cost, as does the preparation each joint needs, such as cutting out, priming or new backing rod. Access, phasing and site requirements come into it too.

Sending details for a quote

A good diagnosis starts with the right details. Tell us:

  • Specification clauses that apply
  • Whether the building will be occupied during the work
  • Whether an asbestos survey exists
  • A wide shot and a close-up of the area

Send details, get a quote, we seal, guaranteed: that’s how every job runs. The first step is to speak to us on 01277 525 020 or send details through our quote form with what you know.

Your questions answered

Will you plan work around the academic year at somewhere like Buckinghamshire New University?

Yes. Tell us the term dates, vacation periods and access windows, and we will plan the work around them. Let us know which documents your site asks for, and we’ll confirm them alongside the quote.

Is Coleshill too far out for you?

Not at all: smaller places are covered as well as towns. We cover Greater London and the counties of the South East. Good photographs up front let us bring everything on the first visit.

How do I request a quote?

The quote form is the simplest route, though you can also call the office on 01277 525 020 or email the details over. Photos, drawings or a joint schedule help us quote quickly.

How much does the work cost?

It depends on the job: quantities, access, the product and any phasing. Call for a quote.

Is any job too small?

Whatever the size, the process is the same: details, then a fixed price, then sealing, then a 12-month guarantee.

Is your workmanship covered by a guarantee?

Yes. The 12-month guarantee covers our preparation and application, but not damage, misuse or other trades’ work.

Will you come and look before quoting?

Photos, drawings or a schedule are often enough to quote. If the job needs a look first, we’ll arrange a visit before quoting.

Compartments and services around Coleshill

Coleshill is about 25 miles from central London. Tenant changes on commuter-belt business parks mean regular fit-outs, and new services through compartment walls. Coleshill has several hotels close by, all within 2 miles. In hotels, bedroom and corridor walls are usually fire-resisting, so services added in a refit need sealing with the specified product.

For an estates team at a campus like Buckinghamshire New University, 2.4 miles to the north of Coleshill, summer M&E works are typically followed by a round of penetration sealing. Industrial units on estates such as St. Georges Industrial Estate, 2.4 miles north-east of Coleshill, often separate offices from warehouse space with fire-resisting walls, and new services through them need the specified seal.

Coleshill is about 2 miles south-west of Amersham, in Buckinghamshire. We cover commercial sites throughout Coleshill. Coleshill is one of 308 places in Buckinghamshire on our list. There’s a separate page for Reading, about 20 miles away.

Business premises anywhere in HP7 are within our area. Among the streets we cover are Village Road, Meadowcot Lane and Barracks Hill, and sites on any of them can send details for a fixed quote. We also cover Winchmore Hill (1 mile west), Woodrow (1 mile north-west), Penn Street (2 miles north-west), Mop End (2 miles north-west) and Amersham on the Hill (2 miles north-east). Nearby towns on our patch include Aylesbury (14 miles north-west), High Wycombe (5 miles west), Chesham (4 miles north), Marlow (8 miles south-west), Beaconsfield (3 miles south) and Chalfont St Peter (4 miles south-east).

Around Coleshill

Locally, jobs take us to sites close to Amersham School, The Red Lion pub and Amersham Hall, among other places. For rail, the closest station is Amersham station, about 2 miles north-east. Other landmarks nearby include Great Missenden (4 miles north-west) and Amersham Hospital (1.1 miles north). The countryside around Coleshill includes Long Grove Wood.

Map of Coleshill © OpenStreetMap contributors

After the work

Once the work is signed off, a little attention goes a long way:

  • Record which product was used where
  • Ask which product is in place before decorating
  • Flag new cables with no seal around them
  • Arrange inspection before areas are covered up

New services after handover are a common way fire stopping gets breached. A short check at the end of each job saves a long hunt later.

Ask every contractor who works in risers or voids to report openings they create. It costs little and catches breaches early.

What we can’t put right

Not every problem is a sealant problem, and we’re upfront when that’s the case. These need a different solution:

  • Large openings beyond what any sealant detail covers
  • Fire doors, dampers or other fire safety equipment
  • Walls or floors that aren’t fire-resisting to begin with

If in doubt, phone 01277 525 020 or use the quote form and we will say what we think.

Joints and surfaces we work on

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

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