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

Fire Stopping in Horsebridge

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

  • Unsealed openings around new pipes and cables
  • Unsealed joints where partitions meet the slab
  • Penetration schedules that need working through
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
12-month guarantee on our workmanship.
London, the South East & Scotland
CHAS accredited
£5m public liability

Fire stopping near Horsebridge

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

Fire stopping in Horsebridge

We should be clear about what we do and don’t do. Deciding the specification sits with the designer, the fire engineer and building control; sign-off sits with them too. What we bring is careful installation of the specified sealant, to the maker’s guidance on sites in Horsebridge. We work on joints between fire-resisting walls and floors, service gaps in risers and pipe penetrations, and the usual reasons a site gets in touch are penetration schedules that need working through and old intumescent sealant that has split away. A specialist sealant contractor works differently from a general builder: on jobs in Horsebridge, preparation and product choice get the time they need.

Around smaller places like Horsebridge, penetration seals come up in schools, halls, pubs with rooms, care homes and farm buildings used as offices. Any service penetration through those walls should be closed with the specified product, set out as its test evidence shows.

Every job ends the same way: guaranteed. You get a 12-month guarantee on our workmanship, and the quote explains what it covers.

Location
Horsebridge (SO20)
Region
Hampshire
Guarantee
12 months on our workmanship
Quote
A fixed quote before we start
Telephone
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

Honest limits

Before quoting, we check that sealant is the right answer. It isn’t the answer for:

  • Plastic pipes whose detail calls for a collar or wrap
  • Designing or specifying fire stopping, which sits with the designer or fire engineer
  • Walls or floors that aren’t fire-resisting to begin with

Not sure which it is? You can phone 01277 525 020 or email us and we’ll tell you honestly before you book.

Surfaces we seal

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

Diagnose, treat, sign off

When we get to site, we sign in, go through any site induction and check how permits are handled. Floors, finishes and fittings next to the joints are covered before anything is cut or cleaned, and the work typically takes anything from one day to a planned run of visits, depending on the number of seals and the access. For work around Horsebridge, we aim to finish in one visit, so we ask for photos and rough sizes first. That way the right products come on the day.

  1. The specification and schedule come first, so we know which details apply.
  2. We plan the sequence of floors, risers and voids with you.
  3. We compare every service penetration with its tested detail before sealing.
  4. Foam, ordinary sealant and debris come out first.
  5. Backing and fire-rated sealant are installed to the detail and tooled.
  6. We tell you about openings that need a different product.

Before we start on site

  • Flag any permit to work we will need
  • Send any specification or drawings in advance
  • Send asbestos survey details if the building is pre-2000

Request a quote

Let us know the site, the scope and your timescale, and a fixed quote will follow. The easiest way is to phone 01277 525 020 or email us.

Ask for a quote

Related advice

Questions we’re asked in Horsebridge

Is Horsebridge too far out for you?

Not at all. Horsebridge is within our area. London and every South East county are within our area. Send photographs and a list of what needs doing, and we’ll plan the job to need as few trips as possible.

Can you work on a hospital site such as Romsey Community Hospital?

Yes, provided the work is planned with the site’s estates team. Each area is agreed with the ward or department and the estates team in advance.

Can the sealant be colour-matched?

It depends on the product specified. Some ranges are wide, others limited, so we will confirm the colours available for the specified product with the quote.

Will you sign off the seals for us?

No. We don’t certify or sign off fire stopping, and we hold no third-party fire-stopping installer certificate. We work to the specification and the manufacturer’s installation guidance, and any records you need can be confirmed with the quote.

Will you quote for a small job?

Single areas, one-off repairs and whole buildings are all quoted the same way: send details, get a fixed quote, we seal, guaranteed.

What do BS EN 1366-3 and BS EN 13501-2 mean?

Penetration seals are tested to BS EN 1366-3 and linear joint seals to BS EN 1366-4. Results are classified under BS EN 13501-2. The rating applies to the product as tested.

Can you seal any opening with fire-rated sealant?

No. Sealant is the right product only where the tested detail says so. Collars, wraps, batts and boards exist for openings sealant doesn’t cover.

Site staff or a sealant 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.

Site maintenance staff can often handle a short internal joint. The usual problems come from preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.

What we’re called out for in Horsebridge

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.

Most enquiries start with something like this:

  • Snag lists that include open service penetrations
  • Service penetrations left open after M&E works
  • Expanding foam used as fire stopping
  • Seals that don’t match their tested detail

Halls and meeting rooms at places like Church of St James sometimes gain new services, and any compartment wall crossed needs the specified seal.

Before you book anyone

  • What level of public liability insurance do they hold?
  • Whether primer will be used where the manufacturer specifies it
  • The terms of the workmanship guarantee
  • The named product and why it was chosen

Choosing a commercial sealant contractor

Why it’s worth doing now in Horsebridge

An unsealed opening affects more than fire safety: smoke, noise and draughts pass through them every day. Sealing them to the specified detail deals with the fire risk first. For buildings around smaller places like Horsebridge, water damage can go unnoticed for longer, especially where a building isn’t used daily, so a failed joint can leak for a while before anyone sees it. Renewing joints in good time avoids the problem.

Every site prices differently: the joint sizes, the specified product, access and working hours each have a bearing. A fixed quote follows once we understand the job.

What you get with us

  • Joints cleaned back to sound surfaces
  • Commercial sealant work since 2005
  • CSCS-carded applicators
  • One number for every site we cover

See what affects the cost or our accreditations.

What affects the price in Horsebridge

Quotes vary with the job. Expect it to depend on:

  • Quantities, in metres or numbers
  • Any access equipment needed
  • Specialist products, such as fire-rated or hygienic sealants
  • Travel to remote or island sites

Access often affects the price as much as the sealing: 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.

Before you send an enquiry

We can often quote from photos and a few details. It helps to include:

  • Approximate linear metres or a joint schedule
  • What the building is and how it’s used
  • Whether an asbestos survey exists
  • Specification clauses that apply

Send us photos, drawings or a joint schedule and a fixed quote comes back to you. Where a site visit makes more sense, we will arrange one.

Penetration seals near Horsebridge

In England, Approved Document B covers fire stopping of openings and penetrations. 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. At about 68 miles from central London, Horsebridge is within reach of the capital. Tenant changes on commuter-belt business parks mean regular fit-outs, and new services through compartment walls.

Large healthcare estates like Romsey Community Hospital, 5.6 miles south of Horsebridge, change their services often, so penetration seals are worth checking after M&E work. For a school such as King's Somborne Church of England Primary School, penetration sealing fits best at the end of the summer works.

Horsebridge is about 5 miles north of Romsey, in Hampshire. Our applicators travel to Horsebridge for work on service penetrations. Horsebridge is one of 723 places in Hampshire on our list for service penetrations. There’s a separate page for Southampton, roughly 12 miles from Horsebridge.

Anyone looking for fire stopping in SO20 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. Just outside Horsebridge, we also work in Houghton (1 mile north-west), Stonymarsh (2 miles south), Mottisfont (3 miles south-west), Michelmersh (3 miles south) and Broughton (3 miles north-west). Bigger towns within reach include Winchester (8 miles east), Eastleigh (10 miles south-east), Andover (10 miles north), Totton (11 miles south), Chandler's Ford (8 miles south-east) and Hedge End (14 miles south-east).

Around Horsebridge

In Horsebridge, that means premises near John o' Gaunt pub and the streets around them. The nearest railway station is Mottisfont & Dunbridge station, about 3.2 miles south-west. A little further out are Romsey Community Hospital (5.6 miles south).

Map of Horsebridge © OpenStreetMap contributors
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