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

Fire stopping in Woosehill

We carry out fire-rated and intumescent sealing of service penetrations and linear gaps in Woosehill and the surrounding area. Send details for a fixed quote.

  • Snag lists that include open service penetrations
  • Damaged fire seals in risers and voids
  • Old intumescent sealant that has split away
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
Covering the South East & Scotland
CHAS accredited
Fully insured: £5m PL

Fire stopping for businesses in Woosehill

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

Cost factors for service penetrations

Your fixed quote is built from the real scope. It allows for:

  • Any access equipment needed
  • Location, for remote and island sites
  • Removal of failed or old sealant
  • Phasing around occupants

Every site prices differently: joint size, product, access and site hours all play a part. Send the details and a fixed figure follows.

Sending details for a quote

However big the job, the same details help:

  • How the joints are reached, and at what height
  • The type of building and who uses it
  • Whether an asbestos survey exists
  • Specification clauses that apply

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

Fire stopping in Woosehill

Penetration seals are fire tested to BS EN 1366-3 and linear joint seals to BS EN 1366-4. That classification, such as EI 60 or EI 120, belongs to the product in its tested arrangement. Reproducing the tested arrangement on site is the part we take care of. If you’re dealing with damaged fire seals in risers and voids and hidden openings found during inspections, we can put it right. For commercial sealant work in Woosehill, you deal with one contact from quote to sign-off, whether it’s one building or several.

In places the size of Woosehill, fire-resisting walls and floors are found in schools, care homes, health centres and mixed-use buildings. Specified fire-rated sealant goes around new services there, built to match the manufacturer’s detail.

Guaranteed is the last step of every job. Our workmanship is backed for 12 months, and the quote explains what it covers.

Place
Woosehill (RG41)
Region
Wokingham
Guarantee
A 12-month guarantee
Price
Fixed quote, scope in writing
Telephone
01277 525 020
Last updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

For managing agents and facilities managers

Main contractors use us as their sealant subcontractor. Programme, specification and site rules come first, with CSCS-carded applicators on site.

FMs need a contractor who is easy to get on site. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we will confirm with the quote.

General trades versus a specialist

Redoing a failed joint usually costs more than getting it right at the outset, 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.

Certain joints really need a specialist: 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.

Woosehill: questions and answers

How does the move away from BS 476 affect penetration seals in Woosehill?

Approved Document B loses its BS 476 references from 2 September 2029, and BS EN 13501-2 becomes the route, subject to transitional arrangements. Our part doesn’t change: the specified product, to its tested detail.

Is Woosehill too far out for you?

Not at all. Woosehill is within our area. We cover Greater London and the counties of the South East. We plan jobs in smaller places so return trips are kept to a minimum.

Is it fine to apply new sealant on top of old?

No, never. Sealing over old material is one of the classic causes of early joint failure, so it all comes out first.

Who decides which product is used?

The specification comes first, if there is one. If there isn’t one, it comes down to the joint: its movement, its surfaces and what it has to cope with.

Do your applicators hold CSCS cards?

Yes. Should the site need card details in advance, let us know and we’ll send them with the quote.

What hours do you work?

We’re 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.

Are you CHAS accredited?

Yes. We’re CHAS accredited, we are a Constructionline member and we use CSCS-carded applicators.

Our process

Where the site stays busy, 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 the next one starts. For a job in Woosehill, the main thing is a clear picture of the work. A fixed quote follows.

  1. We read the specification, drawings or penetration schedule you send 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. We fit the backing the detail asks for, to the stated depth.
  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.

What we need from you

  • Flag any permit to work we’ll need
  • Tell us your opening times and when work is allowed
  • Send any specification or drawings in advance

Quotes

Send us photographs, drawings or a joint schedule and a fixed quote comes back to you. If the job needs a look first, we’ll arrange a site visit.

Get a quick quote

Related advice

When it isn’t the sealant

Honesty saves time and money. New sealant won’t cure:

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

Not sure which it is? You can phone 01277 525 020 or email a schedule or drawings and we will tell you honestly before you book.

Joints and surfaces we work on

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

Signs you need fire stopping in Woosehill

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, so it has to come out.

Clients usually get in touch after noticing one or more of the following:

  • Service penetrations left open after M&E works
  • Old intumescent sealant that has split away
  • Unsealed joints where partitions meet the slab
  • Damaged fire seals in risers and voids

At a healthcare site like Wokingham Hospital (0.6 miles east of Woosehill), new services through compartment walls are a constant, and each needs the specified seal.

Before you book anyone

  • Are they CHAS accredited or on Constructionline?
  • How they’ll work around occupants
  • How long is the guarantee, and what does it include?
  • Will failed sealant be removed rather than covered?

Choosing a commercial sealant contractor

Fire stopping around Woosehill: what changes locally

There are a number of hotels within about 2 miles of Woosehill. In hotels, bedroom and corridor walls are normally fire-resisting, so services added in a refit need sealing with the specified product. For England, the fire stopping of penetrations is dealt with in Approved Document B. The national BS 476 classes are due to drop out of it from 2 September 2029, leaving the European BS EN 13501-2 route, subject to transitional arrangements. What we install is set by the specification, and it goes in to the tested detail.

Campus buildings at universities such as University of Reading - Whiteknights Campus, 4.2 miles north-west of Woosehill, see constant changes to data and services, and fire-rated sealant goes in around new penetrations where it is specified. Where a unit on an estate such as Station Industrial Estate, which lies east of Woosehill, has fire-resisting walls between offices and warehouse, any new service through them should be sealed to the tested detail.

Woosehill is about 1 mile west of Wokingham, in Wokingham. We cover commercial sites throughout Woosehill, for single jobs and planned programmes alike. Woosehill is one of 42 places in Wokingham on our list. For work in that direction, see our Reading page (6 miles or so).

We take on service penetrations across the RG41 postcode area, for business premises of every kind. For a building on Heron Road, Arthur Road and Heelas Road or nearby, send details and we’ll quote for service penetrations. We also cover Wokingham (1 mile east), Emmbrook (1 mile north), Sindlesham (1 mile north-west), Winnersh (2 miles north-west) and Hurst (3 miles north) for service penetrations. A short drive away, we cover Earley (4 miles north-west), Crowthorne (4 miles south-east), Lower Earley (3 miles west), Shinfield (4 miles west), Arborfield Garrison (3 miles south-west) and Spencers Wood (5 miles west). Woosehill ranks among the main centres of Wokingham, with offices, shops, schools and other public and commercial buildings, and we cover them all.

Landmarks near Woosehill

We work on buildings around The Emmbrook School and Ye Olde Leathern Bottel pub. Woosehill’s nearest station is Wokingham station, about 0.7 miles east of the centre. Other landmarks nearby include Wokingham Hospital (0.6 miles east) and Berkshire Library & Museum of Freemasonry (1.5 miles north-west). Open spaces near Woosehill include Holt Copse & Joel Park and Sonning Hill.

Map of Woosehill © OpenStreetMap contributors
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