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

Fire Stopping in Stonehills

Fire stopping for Stonehills, from a contractor working since 2005. Fully insured, with a 12-month guarantee.

  • Seals that don’t match their tested detail
  • Fire-rated sealant that has cracked or shrunk back
  • 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
Scope agreed and priced before anything starts.
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 & Constructionline
£5m public liability

Fire stopping for Stonehills sites

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

Building owners, agents and FMs in Stonehills

CHAS accredited and a Constructionline member, we make supplier vetting simple. Our insurance certificate can be sent along with the quote.

Planned maintenance programmes are welcome: working through a building or an estate in stages that fit your budget. Stonehills can form part of a wider programme.

Fire stopping for commercial buildings in Stonehills

A fire-rated sealant is only one part of a tested system: its test evidence covers one product in one kind of wall or floor, with set services, gaps, depths and backing. Before we seal anything, we check the opening against the detail it is meant to follow, and we say so if it doesn’t fit. We work on linear gaps at wall heads, pipe penetrations and cable penetrations, and what we are called in for most is fire-rated sealant that has cracked or shrunk back and hidden openings found during inspections. One point of contact handles commercial sealant work in Stonehills from the first photographs to the final walk-round, whether it’s one building or several.

Around smaller places like Stonehills, penetration seals come up in schools, halls, pubs with rooms, care homes and farm buildings used as offices. If sealant is what the specification names, we install it around the services exactly as the maker’s detail sets out.

The 12-month guarantee is for workmanship rather than wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we are clear about what is covered before work starts.

Location
Stonehills (SO45)
Wider area
Hampshire
Cover
12 months on our workmanship
Price
A fixed quote before we start
Telephone
01277 525 020
Page updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

Common questions from Stonehills clients

How does the removal of BS 476 from Approved Document B affect fire-rated sealing in Stonehills?

From 2 September 2029, Approved Document B drops its BS 476 references in favour of BS EN 13501-2 classification, with transitional arrangements. Whichever applies, we install the specified product to its tested detail; the specification is for the designer to set.

Will you take on work at estates like Ensign Way Business Park, close to Stonehills?

Yes. We cover Stonehills and the area around it, including industrial estates, business parks and retail parks such as Ensign Way Business Park. A few photos and the unit address let us price the work.

What if there’s asbestos in the old mastic?

Asbestos is possible in some older mastics, particularly in buildings from before 2000. Before we disturb old sealant in an older building, we ask to see the asbestos register or survey, and if asbestos is suspected, work stops until it’s tested. Removing asbestos is a job for asbestos specialists, not us.

Is any job too small?

Whatever the size, the process is the same: send details, get a fixed quote, we seal, guaranteed.

Are you fully insured?

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

Do you work to architects’ specifications?

Yes. Send it with your enquiry, and the quote will be based on it.

Do you offer coloured sealant?

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

Fire stopping in Stonehills: the local picture

Approved Document B is the English guidance that covers fire stopping around openings and penetrations. From 2 September 2029, BS 476 references are being taken out of Approved Document B, leaving BS EN 13501-2 classification as the route, subject to the Government’s transitional arrangements. Our part stays the same: the specified product, installed to its tested detail.

For a hotel such as Falcon Hotel, which lies north-west of Stonehills, penetration seals are worth checking after any refit or services upgrade. At a healthcare site like Coldeast (4.1 miles north-east of Stonehills), new services through compartment walls are a constant, and each needs the specified seal.

Stonehills is about 4 miles south-east of Hythe, in Hampshire. Anywhere in SO45, it works the same way: details in, fixed quote out, then sealing and a 12-month guarantee. Across Hampshire, 723 places are covered, including Stonehills. There’s a separate page for Southampton, about 7 miles away.

We take on service penetrations across the SO45 postcode area. We cover commercial and managed buildings on Stonehills and Fawley Bypass and the roads nearby. We also cover Ashlett (1 mile north-east), Fawley (1 mile north-west), Sprat's Down (1 mile south), Calshot (1 mile south-east) and Blackfield (1 mile south-west). Further afield, our area takes in Gosport (8 miles east), Eastleigh (10 miles north), Fareham (7 miles east), Totton (10 miles north-west), Chandler's Ford (11 miles north) and Hedge End (7 miles north).

Around Stonehills

We work on buildings around Falcon Hotel and The New Forest Academy. For rail, the closest station is Hamble station, about 3.3 miles north of the centre. Well-known places in the area include Calshot Castle (1.6 miles east) and Coldeast (4.1 miles north-east). For a walk, there’s Mercury Marshes.

Map of Stonehills © OpenStreetMap contributors

Surface by surface

Metal pipes

Metal pipes conduct heat, so their details often call for extra measures along the pipe. We follow whatever the detail requires and flag anything we can’t match.

Plastic pipes

Plastic waste pipes through slabs come up often. The detail decides whether sealant alone is enough.

How a job runs

At the end of each section, we remove the tape, clean down and inspect every joint. If an area should be left alone while the sealant cures, we say how long and put signs out. If others near Stonehills need work, visits can be combined, which keeps travel down. You will have a fixed quote before work starts.

  1. We read the specification, drawings or penetration schedule you send.
  2. Every penetration is compared with its detail: wall or floor type, service, gap size and depth.
  3. Unsuitable fillers and loose debris are taken out of each opening.
  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. Openings that need a collar, wrap, batt or other product are flagged to you rather than filled with sealant.

Preparing the site

  • Agree which areas must stay open
  • Share your working hours and any access restrictions
  • Send any specification or drawings in advance

Request a quote

A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Send what you have, and we’ll arrange a site visit if anything is unclear.

Get a price

Read more

Signs you need fire stopping in Stonehills

Head-of-wall joints and wall-to-wall junctions are frequent weak points. Deflection and building movement can open these gaps. Linear joint details set a width range and movement capability, and the seal has to sit within them.

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

  • Non-fire-rated filler around services
  • Head-of-wall gaps with no fire seal
  • Seals disturbed by maintenance and left open
  • Fire stopping installed outside its tested range

Office fit-outs on sites such as Ensign Way Business Park, 2.4 miles north of Stonehills, add cabling and pipework through fire-resisting walls, and fire-rated sealant goes in where the specification calls for it.

What to look for in a quote

  • Will CSCS-carded applicators be on site?
  • Which product they’ll use, and why it suits the joint
  • How the joint faces will be prepared and primed
  • Whether old or failed sealant will be cut out, not overlaid

Our contractor checklist

What affects the price in Stonehills

These are the things that shape the price:

  • Whether old sealant has to be cut out first
  • Location, for remote and island sites
  • Whether the work must be split into stages
  • Which sealant the job calls for

A quote for service penetrations depends on quantities, condition and access, and any specification that applies. Ask us for a fixed quote.

Details that help us quote

There’s no need for a formal survey. These details are enough to start:

  • Drawings or a marked-up plan, if available
  • Any dates the work must fit around
  • Clear photographs of the problem areas
  • Anything awkward about access or site hours

Quotes are fixed against the scope you send, so the cost is agreed before work starts. To ask for one, phone 01277 525 020 or email the details over.

Why act early in Stonehills

Leave a penetration open and smoke and fire can cross into the next compartment far earlier than intended. While the openings can be reached, sealing them is normally straightforward. Left until ceilings are closed or a tenant moves in, the same work costs more access and more disruption. One visit to deal with every failing joint makes more sense than several trips to a place like Stonehills, rather than one at a time. Photos of every joint help us quote for the whole job.

Small jobs and large programmes are priced from the same things: scope, access, product and programme. Call for a quote, and you’ll have a fixed figure to work with.

What you get with us

  • Public liability insurance in place
  • Old sealant cut out, never sealed over
  • Fixed quotes based on photographs, drawings or a visit
  • 12 months’ guarantee on every job

See our cost guide and our accreditations.

Accreditations

Trusted. Accredited. Insured.