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

Fire Stopping in Crow

Planning work on a service penetration in Crow? We assess it, carry out the work and guarantee our workmanship for 12 months.

  • Unsealed openings around new pipes and cables
  • Head-of-wall gaps with no fire seal
  • Fire seals cut back for extra cables and never reinstated
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
Covering the South East & Scotland
CHAS & Constructionline
£5m public liability

Fire stopping across Crow

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

Fire stopping in Crow, done properly

No fire sealant works on its own: the evidence covers a specific product, wall or floor type, service, gap, depth and backing. We match each opening to that detail before any sealant goes in, and we say so if it doesn’t fit. We work on service gaps in risers, joints between fire-resisting walls and floors and cable penetrations, and what we are called in for most is penetration schedules that need working through and seals that don’t match their tested detail. A single leaking joint is often how a building in Crow first comes to us: we look at the rest while we are there and tell you what we find.

Barn and farm-building conversions near places like Crow often combine new partitions with old walls. A penetration seal only performs as tested if product, substrate, service, gap and depth all match the detail.

Our 12-month guarantee is about workmanship, not wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we spell out the cover before we begin.

Mastic Doctor team members lined up next to their branded vans outside an office building
Where
Crow (BH24)
Wider area
Hampshire
Guarantee
A 12-month guarantee
Price
Quoted before any work starts
Phone
01277 525 020
Last updated
3 November 2026

What sealant work can’t fix

Our job is the joint, not everything around it. Sealant alone won’t deal with:

  • Designing or specifying fire stopping, which sits with the designer or fire engineer
  • Approving the work on behalf of building control
  • Fire risk assessments, a job for a competent assessor

If in doubt, ring 01277 525 020 or email drawings and photos and we will say what we think.

Where we work in Crow

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

Common problems we fix in Crow

On a busy project, programme pressure can mean fire stopping is rushed or left to whichever trade is closest. That is how unsuitable products and improvised details end up in compartment walls and later need putting right.

Site and facilities staff are often the first to spot these:

  • Non-fire-rated filler around services
  • Fire-rated sealant that has cracked or shrunk back
  • Unsealed joints where partitions meet the slab
  • Seals that don’t match their tested detail

Schools such as Ringwood Junior School often have new data and services installed during holidays, and penetrations through fire-resisting walls should be checked afterwards.

Questions to ask before you book

  • How long is the guarantee, and what does it include?
  • Do they follow the manufacturer’s priming guidance?
  • Their public liability cover
  • Is depth set with backing rod, or bond-breaker tape in shallow joints?

Choosing a commercial sealant contractor

For managing agents and facilities managers

Hotels, schools, healthcare sites, offices and retail units come to us directly as well. 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 everything from one building to a spread of sites around Crow. Several sites can go on one quote, which keeps the paperwork simple.

Looking after the joints

Your facilities or cleaning team can help the joints last. Pass these on to them:

  • Leave fire sealant to cure fully before covering it
  • Don’t let anyone top up a fire seal with the wrong product
  • Check risers and ceiling voids after each round of works
  • Agree the fire-stopping specification before services go in

Keep the product data and installation details with the building’s fire safety information. Anyone resealing later needs to know which product and detail were used.

The simplest way to keep compartment walls intact is to plan fire stopping into every job that crosses them. That way the opening is sealed while the trade and access are still there.

Fire stopping in Crow: the local picture

Crow has several hotels close by, all within 2 miles. 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. 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. We install whatever has been specified, to the product’s tested detail.

For a building at a site such as Platinum Jubilee Business Park, 0.8 miles to the north-west of Crow, a check of penetration seals after each fit-out is good practice. For a site team at a college like Sheiling College (2.4 miles west of Crow), fire-rated sealing is best scheduled after the summer works.

Crow is in Hampshire. Across the BH24 postcode area, it works the same way: send details, get a fixed quote, we seal, and the work is guaranteed. Our Hampshire coverage takes in 723 places. Sites around Southampton have their own page, about 17 miles away.

Commercial sites across BH24 are covered. For a building on Barrack Lane, Wood End Road and Crow Lane or nearby, send details and we’ll quote for service penetrations. Close to Crow, our area also takes in Upper Kingston (1 mile west), Hightown (1 mile north), Bagnum (1 mile south), Ringwood (1 mile north-west) and Poulner (1 mile north). Bigger towns within reach include Totton (13 miles north-east), Lymington (11 miles south-east), New Milton (7 miles south-east), Barton on Sea (8 miles south-east), Dibden Purlieu (15 miles east) and Marchwood (14 miles east).

Near you in Crow

We work on buildings around Ringwood School and The Elm Tree Inn and the streets around them. A little further out are St Leonard's Hospital (4.3 miles west). Open spaces near Crow include Blashford Lakes and Linbrook Lake.

Map of Crow © OpenStreetMap contributors

When to bring in a specialist

Redoing a failed joint typically costs more than getting it right at the outset, because the whole bead must be removed and the faces cleaned back again. That’s why many clients bring in a specialist from the beginning.

The visible bead is only part of the job. Correct depth, the right primer and a sealant matched to the movement are easy to get wrong without experience.

How a job runs

Inspect, seal, sign off: every visit follows that pattern. First comes an inspection and agreement on scope, then the work is carried out to the specified product and detail, and we finish with a walk round so the work can be signed off. Rural sites near Crow may need directions, gate codes or a contact on site. Add it to your enquiry and we’ll build it into the plan.

  1. First we confirm the product and tested details named in the specification.
  2. Openings are measured and grouped by detail.
  3. Old or wrong materials are cut out.
  4. Where the detail needs backing, it goes in at the stated depth.
  5. We gun the sealant in to the specified depth around each service and tool it.
  6. Completed areas are checked with you, with the records agreed when we quoted.

What we need from you

  • Tell us which areas need to stay in use
  • Clear stock, furniture or equipment away from the joints
  • Arrange parking or a loading space

Request a quote

Every quote starts with the facts: what’s there, how much of it, how we reach it and what’s specified. Share whatever details you have and we will fill any gaps with a visit.

Ask for a quote

Related advice

Common questions from Crow clients

Can you seal around new services in a hotel near Crow?

Yes. We install fire-rated and intumescent sealant where it is specified. Each seal follows the tested detail, and rooms are done in turn.

Will you work in a care home in Crow without moving residents out?

Yes. We work around residents’ routines, a room or two at a time. We follow the home’s own procedures throughout.

When is resealing likely to be due?

Nobody can honestly give a figure in years, since movement, weather, cleaning and use all affect it. Regular checks let you plan resealing before leaks or damage.

Do you work in Crow?

Yes. Sites across Crow are covered, and the same phone number covers every area.

Can the sealant be colour-matched?

Often, yes. Many products come in a range of standard colours, and matching to RAL references or surrounding finishes is often possible. We will confirm the colours available for the specified product.

How do we ask for a quote?

The quote form is the simplest route, though you can also call the office on 01277 525 020 or send photos by email. Include photographs or drawings if you have them.

Are you fully insured?

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

Accreditations

Trusted. Accredited. Insured.