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

Fire-rated sealing and fire stopping in West Tisted, Hampshire

Fire stopping for West Tisted, from a contractor working since 2005. Fully insured and CHAS accredited.

  • Fire sealant pulled out of the opening
  • Penetration schedules that need working through
  • Improvised or mixed-product fire seals
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
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
Covering the South East & Scotland
Constructionline member
£5m public liability

Fire stopping for businesses in West Tisted

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 West Tisted

Opened ceilings and riser doors often reveal service openings nobody sealed. Where the walls and floors already have a fire-stopping specification, we can work to it using the product and detail it sets out. Where there isn’t one, the designer or fire engineer needs to set one first. If you’re dealing with seals that don’t match their tested detail and openings found when ceilings come down for a refit, we can put it right. Facilities teams, main contractors and managing agents in West Tisted tend to want the same three things: a fixed quote, no surprises on site and a 12-month guarantee behind the result.

Smaller places such as West Tisted still have buildings with fire-resisting walls and floors: schools, halls, care homes and commercial conversions. Any service penetration through those walls should be closed with the specified product, set out as its test evidence shows.

We sign every job off with a 12-month guarantee. The promise is simple: if our work fails within that year, we put it right.

Where
West Tisted (SO24)
Wider area
Hampshire
Cover
12 months on our workmanship
Quote
Quoted before any work starts
Call
01277 525 020
Last updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

What happens if it’s left?

Fire stopping is a regular point raised at inspections and handover. Late discoveries can delay handover while openings are reopened and resealed which is why earlier is better. Older rural buildings around West Tisted move with the seasons, and rigid or tired sealant can’t keep up. A sealant with the right movement capability, correctly sized, lasts far better.

Access can matter as much as the joints themselves: joints within easy reach take less time than ones that need access equipment. Tell us how the joints are reached and call for a quote.

Why us?

  • CSCS-carded applicators
  • Fully insured
  • 12 months’ guarantee on every job
  • One number for every site we cover

See what affects the cost or our accreditations.

Compartment walls and floors in West Tisted

Central London is about 52 miles from West Tisted. Business park offices in the commuter belt are refitted as tenants change, and each fit-out adds services through compartment walls. 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.

Around West Tisted, we install fire-rated and intumescent sealant to the product’s tested detail wherever it is the specified product.

West Tisted is about 7 miles north-west of Petersfield, in Hampshire. Our applicators travel to West Tisted for work on service penetrations, handled exactly as we handle every other area. Across Hampshire, 723 places are covered, West Tisted among them. Sites around Southampton have their own page, roughly 17 miles from West Tisted.

Commercial sites across SO24 are covered. If your building is just outside West Tisted, we cover Filmore Hill (1 mile south-east), Monkwood (1 mile north-east), Bailey Green (1 mile south-east), Privett (2 miles south-east) and Ropley (2 miles north). Nearby towns on our patch include Basingstoke (14 miles north), Winchester (11 miles west), Havant (14 miles south), Eastleigh (13 miles south-west), Fareham (15 miles south) and Horndean (11 miles south).

Around West Tisted

The countryside around West Tisted includes Henwood Down and Shutts Copse.

Map of West Tisted © OpenStreetMap contributors

Surface by surface

Masonry and concrete

Many seals are made in blockwork, brickwork or concrete slabs. Dust and debris are cleared from the opening, with backing added if the detail requires it.

Risers and ceiling voids

Service risers and the voids above ceilings are where openings collect. Access is often tight, so we agree it with you in advance, including keys, permits and any isolations.

Our process

Occupied buildings need a little choreography. We sign and contain the area we are in, with routes through the building left open and work section by section so the rest of the building stays in use. For work around West Tisted, we aim to finish in one visit, so we ask for photos and rough sizes first. Then the right materials arrive with us.

  1. We read the specification, drawings or penetration schedule you send and ask about anything unclear.
  2. Every penetration is compared with its detail: wall or floor type, service, gap size and depth.
  3. Unsuitable fillers and loose debris are taken out of each opening.
  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

  • Explain the parking and delivery arrangements
  • Agree which areas must stay open
  • Share your working hours and any access restrictions

Quotes

Send details, get a quote, we seal, guaranteed: that’s how every job runs. To take the first step, call the office on 01277 525 020 or use the quote form.

Get a price

Advice

For managing agents and facilities managers

For main contractors, we work as the sealant subcontractor on new-build and refurbishment projects. Programme, specification and site rules come first.

Building owners and managing agents use us on everything from one building to a spread of sites. One quote can cover more than one site, so there’s one set of paperwork to deal with.

Maintenance after handover

Every sealant joint needs some looking after, and their life depends on movement, exposure, cleaning and use. Our advice:

  • Report damaged or disturbed seals as soon as they’re spotted
  • Get seals inspected before ceilings and boxing close
  • Don’t let anyone top up a fire seal with the wrong product
  • Include service cupboards in routine inspections

Allow the manufacturer’s stated cure time before boxing in or decorating. Not every fire-rated product can be painted, so check the product data first.

Looking at service areas on a regular cycle pays off. Catching a damaged seal early keeps the fix small.

West Tisted: questions and answers

Is West Tisted too small for you to travel to?

No. Small places get the same service as large ones. We cover Greater London and the counties of the South East. Where we can, we group nearby jobs to make the most of each trip.

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

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 fit around our working hours?

Give us your site hours and any access windows in your enquiry, and we’ll schedule the work to suit. Our office runs Monday to Friday, 8am until 5pm.

Are you fully insured?

Yes. We’re fully insured, and the certificate can go with your quote.

Can one quote cover more than one building?

Yes. We take on portfolio and planned maintenance work, with each site phased to suit its occupants.

What do you charge?

We don’t publish prices, as every site differs. With photographs or drawings, we can give you a fixed quote.

Which sealant will you use?

The specification comes first, if there is one. Without one, the joint decides: its movement, its surfaces and what it has to cope with.

What we’re called out for in West Tisted

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.

Typical triggers for a call:

  • Improvised or mixed-product fire seals
  • Hidden openings found during inspections
  • Builders’ foam or ordinary silicone in compartment walls
  • Openings left by services added after handover

Older community buildings such as Church of St Mary Magdalene that have been rewired or given new heating can have service gaps through walls worth checking against the specification.

Questions to ask before you book

  • How long is the guarantee, and what does it include?
  • Do they follow the manufacturer’s priming guidance?
  • Which product they’ll use, and why it suits the joint
  • Is depth set with backing rod, or bond-breaker tape in shallow joints?

Questions to ask before you appoint anyone

Accreditations

Trusted. Accredited. Insured.