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

Fire stopping in Upper Froyle

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

  • Unsealed openings around new pipes and cables
  • Penetration schedules that need working through
  • Fire seals cut back for extra cables and never reinstated
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Signed off, with 12 months’ guarantee.
London, the South East & Scotland
CHAS accredited
£5m public liability

Fire stopping for businesses in Upper Froyle

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

How we handle fire stopping in Upper Froyle

The test standards are BS EN 1366-3 for penetration seals and BS EN 1366-4 for linear joints, with results classified under BS EN 13501-2. That classification, such as EI 60 or EI 120, belongs to the product in its tested arrangement. So our job is to reproduce that arrangement faithfully. We work on small duct penetrations where the tested detail allows, joints between fire-resisting walls and floors and cable penetrations, and the failures we’re asked to look at most are snag lists that include open service penetrations and seals that don’t match their tested detail. A specialist sealant contractor works differently from a general builder: on jobs in Upper Froyle, preparation and product choice get the time they need.

Smaller places such as Upper Froyle still have buildings with fire-resisting walls and floors: schools, halls, care homes and commercial conversions. If sealant is what the specification names, we install it around the services exactly as the maker’s detail sets out.

Every job is signed off with a 12-month guarantee. The promise is simple: if the work we did fails within twelve months, we return to fix it.

Where
Upper Froyle (GU34)
Wider area
Hampshire
Cover
12 months on every job
Quotes
Fixed quote, scope in writing
Call
01277 525 020
Updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

Honest limits

Part of a good diagnosis is knowing where sealant stops. You will hear from us if the cause turns out to be one of these:

  • Deciding what a wall or floor needs, which belongs to the designer
  • Walls or floors that aren’t fire-resisting to begin with
  • Signing off or certifying a building’s fire stopping

Not sure which it is? You can speak to us on 01277 525 020 or email a schedule or drawings and we will tell you honestly before you book.

What we seal

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

Site staff or a sealant specialist?

For most general trades, sealant is a sideline. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint, which is what makes a joint last.

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.

Questions about Upper Froyle

What does the BS 476 change mean for fire-rated sealant in Upper Froyle?

From 2 September 2029, Approved Document B drops its BS 476 references in favour of BS EN 13501-2 classification, with transitional arrangements. The designer or fire engineer sets the specification, and we install the product to the manufacturer’s tested detail.

Do you cover business parks and estates near Upper Froyle, such as Bentley Industrial Centre?

Yes. Estates, retail parks and business parks around Upper Froyle, Bentley Industrial Centre among them, are all within reach. A few photographs and the unit address let us price the work.

Do you hold CHAS accreditation?

Yes. We are CHAS accredited, we are a Constructionline member and we use CSCS-carded applicators.

Will you come and look before quoting?

It depends on the job. Straightforward work can often be priced from photos and measurements, while larger or less clear jobs get a site visit first.

How do you deal with asbestos in old sealant?

The duty to manage asbestos sits with the building’s dutyholder, so we will ask for the register before work on an older building. Work pauses if suspect material is found, until it has been tested.

Is any job too small?

Small jobs are welcome alongside larger packages. Send details for a fixed quote.

How long does a typical visit take?

That varies with the scale of the job, though a typical visit normally takes a single visit for a short list of penetrations, or a phased programme for a whole building. Larger or phased jobs take longer, and we’ll give you a timescale with the quote.

After the work

Cleaning and maintenance staff play a part too. Pass these on to them:

  • Ask which product is in place before decorating
  • Brief every trade that openings they make must be sealed
  • Arrange inspection before areas are covered up
  • Keep general-purpose fillers away from compartment walls

Never top up a fire seal with foam, ordinary silicone or filler. Repairs need the same product and detail as the original.

Keep a register of where seals are and what they are made of. When a new service goes through, everyone knows which product and detail to match.

What happens if it’s left?

Inspections and handover checks often pick up fire stopping. Finding unsealed or improvised openings late can hold up a programme, so earlier action pays back. Halls, stores and units around places like Upper Froyle may not be checked every day, so a failed joint can leak for a while before anyone sees it. Renewing joints in good time avoids the problem.

The product called for affects the cost, and so does the preparation, from cutting out to priming and backing rod. Access, phasing and site rules also count.

Why clients in Upper Froyle choose us

  • Over 20 years of commercial sealing
  • Old sealant cut out, never sealed over
  • Products installed to the manufacturer’s instructions
  • A fixed quote before work starts

Take a look at our cost guide or how we’re accredited.

Compartment walls and floors in Upper Froyle

The 2 miles around Upper Froyle include two care or nursing homes. Care settings depend on compartmentation, so service penetrations made during maintenance or refurbishment need sealing with the specified product. Central London is about 42 miles from Upper Froyle. Office refits around the commuter belt bring new cabling through fire-resisting walls.

For a school such as Eggar's School, penetration sealing fits best at the end of the summer works. Where a unit on an estate such as Bentley Industrial Centre, 2 miles north-east of Upper Froyle, has fire-resisting walls between offices and warehouse, any new service through them should be sealed to the tested detail.

Upper Froyle is about 3 miles north-east of Alton, in Hampshire. We send applicators to Upper Froyle for service penetrations. Our Hampshire coverage takes in 723 places, from busy centres to rural villages. We also cover Reading, some 19 miles away.

Business premises anywhere in GU34 are within our area for service penetrations. If your site is on Burnham Square and Oast Lane or close by, we can quote for service penetrations. We also cover Froyle (1 mile north-east), Lower Froyle (1 mile north-east), Neatham (1 mile south-west), Holybourne (2 miles south-west) and Wyck (2 miles south). Further afield, our area takes in Basingstoke (10 miles north-west), Farnborough (10 miles north-east), Fleet (8 miles north-east), Aldershot (8 miles north-east), Alton (3 miles south-west) and Petersfield (12 miles south).

Near you in Upper Froyle

In Upper Froyle, that means premises near Hen And Chicken Public House. Upper Froyle’s nearest station is Bentley (Hampshire) station, about 2.3 miles east. Well-known places in the area include Allen Gallery (3 miles south-west) and Barley Pound (3.6 miles north-east). Green spaces nearby include Holybourne Hill.

Map of Upper Froyle © OpenStreetMap contributors

Diagnose, treat, sign off

When we get to site, we sign in, go through any site induction and check how permits are handled. Everything around the joints gets protected before any cutting starts, with the work itself normally taking a single visit for a short list of penetrations, or a phased programme for a whole building. For a building around Upper Froyle, tell us how to find it and who will meet us. Send that with the details and we will confirm the plan with the quote.

  1. First we go through the drawings, schedule or specification for the seals and ask about anything unclear.
  2. On site, each opening is checked against the tested detail it is meant to follow.
  3. Anything that doesn’t belong in the opening, such as expanding foam or general-purpose filler, is removed.
  4. We fit the backing the detail asks for, to the stated depth.
  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.

Preparing the site

  • Move anything stored against the joints
  • Tell staff and tenants when we will be in
  • Tell us which areas need to stay in use

Request a quote

We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To ask for one, speak to us on 01277 525 020 or email a schedule or drawings.

Ask for a quote

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Signs you need fire stopping in Upper Froyle

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. Linear joint details set a width range and movement capability, and the seal has to sit within them.

Most enquiries start with something like this:

  • Open linear gaps along the top of fire-resisting walls
  • Fire stopping installed outside its tested range
  • Fire-rated sealant that has cracked or shrunk back
  • Openings left by services added after handover

Older community buildings such as Church of St Mary of the Assumption 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

  • What the guarantee covers, and for how long
  • Whether primer will be used where the manufacturer specifies it
  • Will CSCS-carded applicators be on site?
  • Will failed sealant be removed rather than covered?

Choosing a commercial sealant contractor

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