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

Sprat's Down fire stopping

Need fire stopping in Sprat's Down? Send us the details for a fixed quote, backed by a 12-month guarantee on the work.

  • Seals disturbed by maintenance and left open
  • Seals that don’t match their tested detail
  • Old intumescent sealant that has split away
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
12-month guarantee on our workmanship.
London, the South East & Scotland
CHAS & Constructionline
Fully insured: £5m PL

Fire stopping near Sprat's Down

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

How the job changes by surface

Masonry and concrete

Core-drilled holes are neat; broken-out ones rarely are. The gap is measured at the widest point against the detail’s limits, and any that don’t are flagged.

Risers and ceiling voids

Risers and ceiling voids hold most of a building’s service penetrations. Access to these areas is planned with you in advance along with any permits your site needs.

Fire stopping in Sprat's Down, done properly

It helps to set out our role at the start. 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 in Sprat's Down and nearby. The enquiries we see most involve fire seals cut back for extra cables and never reinstated and hidden openings found during inspections, on linear gaps at wall heads, service gaps in risers and cable penetrations. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: in Sprat's Down, that means joint design, primers and backing rod as standard.

Around smaller places like Sprat's Down, 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.

Guaranteed is the last step of every job. You get a 12-month guarantee on our workmanship, and we explain exactly what that covers when we quote.

The Mastic Doctor team beside their liveried vans in front of an office building
Place
Sprat's Down (SO45)
Wider area
Hampshire
Cover
A 12-month guarantee
Quote
A fixed quote before we start
Telephone
01277 525 020
Page updated
3 November 2026

Sprat's Down: questions and answers

Do you take on work at healthcare sites like Coldeast?

Yes. We work in healthcare settings as well as offices and schools. Each area is agreed with the ward or department and the estates team in advance.

What does the BS 476 change mean for fire-rated sealant in Sprat's Down?

From 2 September 2029, Approved Document B drops its BS 476 references in favour of BS EN 13501-2 classification, with transitional arrangements. Our part doesn’t change: the specified product, to its tested detail.

Is colour matching possible?

That depends on the product specified. Some ranges are wide, others limited, so the available colours are confirmed with the quote.

How do you choose the sealant?

Where there’s a specification, we use the product it names. If not, we choose for the movement, the surfaces and the conditions, in line with the manufacturer’s guidance.

Will you quote for a small job?

Whatever the size, the process is the same: details, then a fixed price, then sealing, then a 12-month guarantee.

Are you fully insured?

Yes. Our insurance certificate can be sent alongside the quote.

Can you fit around our working hours?

Mention the site’s hours and access windows in your enquiry, and we will schedule the work to suit. Our office runs Monday to Friday, 8am until 5pm.

Fire-rated sealing for Sprat's Down buildings

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. Either way, we install the specified product to its tested detail.

For a school such as Fawley Infant School, penetration sealing fits best at the end of the summer works. Halls and meeting rooms at places like St George sometimes gain new services, and any compartment wall crossed needs the specified seal. Hotels such as Falcon Hotel (to the north of Sprat's Down) rely on fire-resisting walls between bedrooms and corridors, and refits that add services leave penetrations to seal where fire-rated sealant is specified.

Sprat's Down is about 4 miles north of Cowes, in Hampshire. Sprat's Down sits inside our coverage, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. We work across 723 places in Hampshire. Sites around Southampton have their own page, roughly 8 miles from Sprat's Down.

Postcode districts covered here: SO45. Close to Sprat's Down, our area also takes in Calshot (1 mile east), Stonehills (1 mile north), Stanswood (1 mile south), Hillhead (1 mile east) and Ashlett (1 mile north). Bigger towns within reach include Gosport (8 miles east), Eastleigh (11 miles north), Fareham (7 miles north-east), Totton (10 miles north-west), Chandler's Ford (12 miles north) and Hedge End (7 miles north).

Landmarks near Sprat's Down

In Sprat's Down, that means premises near Falcon Hotel and the streets around them. Sprat's Down’s nearest station is Hamble station, roughly 4 miles north of the centre. A little further out are Calshot Castle (1.6 miles east) and Sir Max Aitken Museum (3.9 miles south-east). Open spaces near Sprat's Down include Mercury Marshes and Mill Hill.

Map of Sprat's Down © OpenStreetMap contributors

Site staff or a sealant specialist?

Redoing a failed joint typically 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.

For a quick touch-up, site staff may be fine, but larger jobs are different: a specialist brings efficiency, a consistent finish and a 12-month guarantee.

Diagnose, treat, sign off

At the end of each section, we remove the tape, clean down and inspect every joint, ready for your sign-off. Where the sealant needs time to cure before use, we tell you and sign the area. For work around Sprat's Down, 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. We ask for the product and detail your designer has specified.
  2. Openings are measured and grouped by detail.
  3. Old or wrong materials are cut out.
  4. Mineral wool or other backing is fitted where required.
  5. Fire-rated or intumescent sealant goes in around the services and is tooled off.
  6. We walk the completed areas with you and confirm the records agreed at quote stage.

Getting the site ready

  • Agree which areas must stay open
  • Flag any permit to work we will need
  • Share the asbestos register for older buildings

Get a fixed quote

A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Share whatever details you have and we will fill any gaps with a visit.

Get a quick quote

Advice

Why it’s worth doing now in Sprat's Down

Inspections and handover checks often pick up fire stopping. Late discoveries can delay handover while openings are reopened and resealed, so earlier action pays back. Converted and older buildings near places like Sprat's Down tend to move, and aged sealant cracks. A sealant with the right movement capability, correctly sized, lasts far better.

We don’t publish prices, because the scope varies so much from one building to the next. For a fixed figure, call for a quote.

What you get with us

  • Joints cleaned back to sound surfaces
  • Work carried out by CSCS-carded applicators
  • One contact handling all your sites
  • Clear, fixed quotes

Read how commercial sealant jobs are priced and our accreditations.

What we can’t put right

Not every problem is a sealant problem, and we’re upfront when that’s the case. It won’t fix:

  • Issuing fire ratings or certificates for seals
  • Fire doors, dampers or other fire safety equipment
  • Walls or floors that aren’t fire-resisting to begin with

If in doubt, give us a call on 01277 525 020 or email drawings and photos and we’ll say what we think before you book.

Surfaces we seal

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

How the quote is worked out

We price every job individually. The main factors are:

  • How much there is to seal
  • Any access equipment needed
  • Distance, for remote addresses
  • Removal of failed or old sealant

Quantities, awkward access and phased working all shape the price. Site requirements like inductions and permits play a part as well.

Details that help us quote

Diagnosis starts before we arrive. Let us know:

  • Specification clauses that apply
  • The type of building and who uses it
  • Anything awkward about access or site hours
  • Approximate linear metres or a joint schedule

To get a fixed quote, phone 01277 525 020 or use the quote form. Our quote form is another easy route.

Accreditations

Trusted. Accredited. Insured.