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

Fire-rated sealing and fire stopping in Butlocks Heath, Hampshire

Commercial sealant work in Butlocks Heath for contractors, FMs and building owners: fire-rated and intumescent sealing of service penetrations and linear gaps, with a fixed quote first.

  • Head-of-wall gaps with no fire seal
  • Unsealed openings around new pipes and cables
  • Snag lists that include open service penetrations
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
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
Covering the South East & Scotland
CHAS & Constructionline
£5m PL insurance

Fire stopping near Butlocks Heath

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

How we handle fire stopping in Butlocks Heath

Facilities managers in Butlocks Heath often find open service penetrations when ceilings come down for other work. Where the walls and floors already have a fire-stopping specification, we can work to it. With no specification in place, the first step sits with your designer or fire engineer, not with us. If you’re dealing with seals that don’t match their tested detail and non-fire-rated filler around services, we can put it right, on cable penetrations, service gaps in risers and pipe penetrations alike. Most enquiries from Butlocks Heath start with one failed joint and grow into a wider look at the building: we check the joints around it and give you an honest view of what needs doing now and what can wait.

Rural conversions around Butlocks Heath 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 ends the same way: guaranteed. You get a 12-month guarantee on our workmanship, and the quote explains what it covers.

Where
Butlocks Heath (SO31)
Region
Hampshire
Guarantee
12 months on our workmanship
Quote
Fixed quote, scope in writing
Telephone
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Questions we’re asked in Butlocks Heath

Do you take on work at healthcare sites like Fareham Community Hospital?

Yes, hospitals are one of the sectors we cover. Work is phased so departments keep running, under the site’s own rules.

Can work at a site such as Solent University fit around teaching?

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

How long before the joints can be used?

Curing time varies by product, and we confirm it on the day, and sign any area that should be left alone.

Will you write the fire-stopping specification?

No. The specification comes from your designer, fire engineer or building control. Our role is installing what they specify, to the product’s tested detail.

Which sealant will you use?

If the job is specified, we follow the specification. If not, we choose for the movement, the surfaces and the conditions, in line with the manufacturer’s guidance.

How long does a job like this take?

The duration is planned around your programme and the access we’re given. We will give you an estimate of time on site when we quote.

Do you seal openings left by new services?

Yes, provided a specification covers them. New services after M&E works often breach existing seals and we close them with the specified product.

Work for main contractors and building owners

For main contractors, we work as the sealant subcontractor. We work to your programme, your specification and your site rules, with CSCS-carded applicators on site.

Hospitality, education, healthcare, office and retail clients book us directly too. We plan around the way the building is used, so the building keeps working while we do.

Cost factors for service penetrations

We price every job individually. The main factors are:

  • Backing rod, priming and other preparation
  • Induction, permit and paperwork requirements
  • Whether the work must be split into stages
  • Quantities, in metres or numbers

The price depends on the quantity of joints, how much old material needs removing and how the joints are reached. Call for a fixed quote once you have the details.

Details that help us quote

To price the job accurately, we need a clear picture of the site. Useful things to include:

  • Whether the building will be occupied during the work
  • Any dates the work must fit around
  • The site address and postcode
  • Any specification or named product

Specifications, drawings and tender packages are welcome with any enquiry, and we will price against exactly what is specified. For smaller jobs, photographs and a description will do.

What sealant work can’t fix

Sealant solves a lot, but not everything, and we’d rather tell you before you spend money. These need a different solution:

  • Issuing fire ratings or certificates for seals
  • Gaps in walls that were never built as compartment walls
  • Large openings beyond what any sealant detail covers

If in doubt, call the office on 01277 525 020 or send photos by email and we’ll say what we think before you book.

What we seal

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

Fire stopping in Butlocks Heath: the local picture

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. Our part stays the same: the specified product, installed to its tested detail. There are four care or nursing homes within about 2 miles of Butlocks Heath. Where new services have gone through compartment walls in a care setting, the gaps need the specified product. Where that’s fire-rated sealant, we install it to the manufacturer’s tested detail.

At a university such as Solent University, 3.3 miles north-west of Butlocks Heath, labs, lecture blocks and residences are re-serviced often, so penetration seals are best checked after M&E work. Offices at parks like Ensign Way Business Park, 1.6 miles south of Butlocks Heath, are re-cabled with each new tenant, and compartment walls need sealing afterwards to the tested detail.

Butlocks Heath is about 3 miles north-east of Hythe, in Hampshire. Across the SO31 postcode area, the process is the same: details in, fixed quote out, then sealing and a 12-month guarantee. Our Hampshire coverage takes in 723 places, from busy centres to rural villages.

Commercial sites across SO31 are covered. Among the streets we cover are Woolston Road, Old School Close and The Grove, and sites on any of them can send details for a fixed quote. Just outside Butlocks Heath, we also work in Netley (1 mile south-west), Hound (1 mile south), Old Netley (1 mile north-east), Lowford (1 mile north-east) and Bursledon (1 mile north-east). Bigger towns within reach include Winchester (12 miles north), Gosport (10 miles south-east), Havant (15 miles east), Eastleigh (6 miles north), Fareham (6 miles east) and Horndean (14 miles east).

Around Butlocks Heath

We work on buildings around The Hamble School, Grove Park Business and Enterprise College and Westwood Woodland Park. Butlocks Heath has its own railway station: Netley station. A little further out are Westquay (3.4 miles north-west) and Bursledon Brickworks Industrial Museum (2.2 miles east). The countryside around Butlocks Heath includes Mercury Marshes.

Map of Butlocks Heath © OpenStreetMap contributors

Different surfaces, different methods

Drylining partitions

Service holes through plasterboard are frequently oversized or ragged. An oversized hole may be outside the sealant’s range, and the detail may call for board patching or another product.

Cables and cable bundles

New data and power cables are the most common breach we see. We reseal around them to the specified detail, and any bundle too large for sealant alone is flagged.

When to call us in Butlocks Heath

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 and later need putting right.

Most enquiries start with something like this:

  • Builders’ foam or ordinary silicone in compartment walls
  • Openings left by services added after handover
  • Unsealed penetrations discovered above suspended ceilings
  • Seals that don’t match their tested detail

Hospital estates such as Fareham Community Hospital (to the east of Butlocks Heath) are divided into fire compartments, and any service penetration through them should be sealed to the specified, tested detail.

What your quote should include

  • The named product and why it was chosen
  • How the joint faces will be prepared and primed
  • How long is the guarantee, and what does it include?
  • Who will actually carry out the work

Choosing a commercial sealant contractor

How a job runs

In a busy building, we agree a sequence with your contact so the disruption stays in one area at once. Each area is protected, prepared and sealed, then reopened once the sealant allows before we move to the next. For work around Butlocks Heath, we aim to finish in one visit, so photos and measurements up front really help. Then the right materials arrive with us.

  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. Fire-rated or intumescent sealant goes in around the services and is tooled off.
  6. Completed areas are checked with you, with the records agreed when we quoted.

Before we start on site

  • Send any specification or drawings in advance
  • Point out parking and an unloading spot
  • Warn occupants and staff about the work

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 will arrange a site visit.

Get a quick quote

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