Fire Stopping in Baffins
Work needed on a service penetration in Baffins? We look at it, seal it with the right product and hand it over with a 12-month guarantee.
- Unsealed joints where partitions meet the slab
- Openings found when ceilings come down for a refit
- Expanding foam used as fire stopping
Fire stopping across Baffins
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
How we handle fire stopping in Baffins
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 raise it with you if it falls outside. The enquiries we see most involve head-of-wall gaps with no fire seal and service penetrations left open after M&E works, on small duct penetrations where the tested detail allows, pipe penetrations and linear gaps at wall heads. A specialist sealant contractor works differently from a general builder: on jobs in Baffins, preparation and product choice get the time they need.
In places the size of Baffins, fire-resisting walls and floors are found in schools, care homes, health centres and mixed-use buildings. Around those penetrations, fire-rated sealant is installed if specified, with depth, backing and gap all as tested.
Our 12-month guarantee is about workmanship, not wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we’re clear about what is covered before work starts.
- Where
- Baffins (PO3, PO4, PO2)
- Region
- Portsmouth
- Cover
- 12 months on every job
- Quote
- Quoted before any work starts
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
Honest limits
Being straight saves everyone time. Fresh joints won’t solve:
- Walls or floors that aren’t fire-resisting to begin with
- Reviewing a building’s overall fire safety
- Issuing fire ratings or certificates for seals
Not sure which it is? You can call the office on 01277 525 020 or email the details over and we’ll tell you honestly.
Surfaces we seal
- Small duct penetrations where the tested detail allows
- Service gaps in risers
- Cable penetrations
- Pipe penetrations
- Linear gaps at wall heads
- Joints between fire-resisting walls and floors
Fire stopping in Baffins: the local picture
There are plenty of hotels within about 2 miles of Baffins. Hotels are divided into compartments, and refurbishments that add pipes and cables through bedroom and corridor walls leave gaps to close. Baffins lies roughly 63 miles out from central London. Offices around the capital are refitted often, and the cabling that follows can breach fire-resisting walls; the gaps need the specified seal.
Wherever services are added at a hospital such as St James Hospital (0.9 miles south-east of Baffins) the compartment line has to be made good with the specified product. At a college such as Portsmouth College, 0.5 miles east of Baffins, checking penetration seals after summer M&E works is good practice.
Baffins is about 1 mile east of Portsmouth, in Portsmouth. Across the PO3 postcode area, it works the same way: send details, get a fixed quote, we seal, and the work is guaranteed. We work across 19 places in Portsmouth, large and small.
Postcode districts covered here: PO3, PO4 and PO2 for service penetrations. Among the streets we cover are Byron Road, James Road and Dover Road, and sites on any of them can send details for a fixed quote. With the A288 nearby, Baffins is straightforward for us to reach. Sites close to Baffins are covered too, including Copnor (1 mile north-west), Kingston (1 mile south-west), Fratton (1 mile south-west), Portsmouth (1 mile west) and North End (1 mile north-west). A short drive away, we cover Wymering (3 miles north), Paulsgrove (3 miles north-west), Drayton (3 miles north) and Farlington (3 miles north).
Around Baffins
In Baffins, that means premises near The Baffins pub, St Edmund's Catholic School and Alexandra Park, among other places. The nearest railway station is Fratton station, roughly 1 mile south-west. Well-known places in the area include The Bridge Shopping Centre (1.1 miles south-west) and Southsea Castle (2.4 miles south-west). Not far away are Portsdown Hill and Milton Locks.
Our process
Inspect, seal, sign off: every visit follows that pattern. We inspect the joints and confirm what’s in scope, then we prepare and seal each joint with the specified product, and we finish with a walk round so the work can be signed off. What matters most for a job in Baffins is a clear list of what needs doing. You will then get a fixed price for the work.
- First we go through the drawings, schedule or specification for the seals and ask about anything unclear.
- On site, each opening is checked against the tested detail it is meant to follow.
- Anything that doesn’t belong in the opening, such as expanding foam or general-purpose filler, is removed.
- Mineral wool or other backing goes in wherever the detail asks.
- Fire-rated or intumescent sealant is gunned in to the specified depth, then tooled.
- Openings that need a collar, wrap, batt or other product are flagged to you rather than filled with sealant.
Preparing the site
- Let building users know which areas are affected
- Tell us which areas need to stay in use
- Share the asbestos register for older buildings
Getting a fixed quote
For a fixed quote, call 01277 525 020 or send details through our quote form. You can also send details through our quote form.
Read more
Also in Baffins
Common problems we fix in Baffins
Physical damage is another reason seals stop doing their job. Seals get knocked during maintenance, cut back to add a cable or pulled out when services are swapped and the opening isn’t always resealed.
Site and facilities staff are often the first to spot these:
- Hidden openings found during inspections
- Expanding foam used as fire stopping
- Damaged fire seals in risers and voids
- Snag lists that include open service penetrations
For a building at a site such as Copnor Bridge Business Centre (under half a mile west of Baffins), a check of penetration seals after each fit-out is good practice.
What your quote should include
- The terms of the workmanship guarantee
- Will RAMS and insurance details be available?
- Is depth set with backing rod, or bond-breaker tape in shallow joints?
- Whether old or failed sealant will be cut out, not overlaid
What happens if it’s left?
Sealing behind the M&E trades area by area beats a sweep at the end. Openings are visible, access is open and nothing has to be taken down and each detail can be checked as we go. Small buildings around Baffins suffer from failed joints as much as large ones. Early resealing avoids the damage that follows a leak.
Small jobs and large programmes are priced from the same things: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote, and you will have a fixed figure to work with.
Why choose Mastic Doctor in Baffins
- Work carried out by CSCS-carded applicators
- Workmanship guaranteed for 12 months
- One phone line for London, the South East and Scotland
- Fully insured, including public liability cover
Take a look at how commercial sealant jobs are priced and our accreditations and insurance.
What affects the price in Baffins
Before we quote, we look at:
- The total length or number of joints
- Travel to remote or island sites
- Site requirements such as inductions and permits
- Which sealant the job calls for
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.
What we need to price the job
Whether it’s one area or a whole building, these details speed things up:
- A wide shot and a close-up of the area
- Any dates the work must fit around
- The postcode of the building
- Any specification or named product
Send details, get a quote, we seal, guaranteed: that’s how every job runs. The first step is to speak to us on 01277 525 020 or email the details over with what you know.
Questions about Baffins
Can you seal around new services in a hotel near Baffins?
Yes, where fire-rated sealant is the specified product. Each seal follows the tested detail, and rooms are done in turn.
What happens to BS 476 references for fire stopping in Baffins?
Approved Document B loses its BS 476 references from 2 September 2029, and BS EN 13501-2 becomes the route, subject to transitional arrangements. Our part doesn’t change: the specified product, to its tested detail.
What if there’s asbestos in the old mastic?
Some older mastics, especially in pre-2000 buildings, can contain asbestos. We check the asbestos register before cutting out old sealant in an older building, and if asbestos is suspected, work stops until it’s tested. We don’t remove asbestos-containing materials.
Do you hold CHAS accreditation?
Yes. CHAS accredited, Constructionline member, and our applicators hold CSCS cards.
Will you come and look before quoting?
That depends on the size and complexity of the job. Straightforward work can often be priced from photographs and measurements, and bigger or more complex jobs typically get a visit.
When is resealing likely to be due?
There isn’t a single answer, because life depends on how much the joint moves, how exposed it is and how it’s cleaned and used. Regular inspection is the best way to catch problems early.
How do we ask for a quote?
There are four steps: send details, receive a fixed quote, we carry out the work, and it’s guaranteed. The first step only needs photos and a postcode.
Keeping the joints sound
For the best life from the joints:
- Ask the designer to confirm details early on refits
- Don’t let anyone top up a fire seal with the wrong product
- Ask which product is in place before decorating
- Have penetrations checked while they can still be seen
Add risers, plant rooms and ceiling voids to routine fire-stopping checks. Watch for cracked sealant, new services with no seal and openings that have grown and get them dealt with.
Looking at service areas on a regular cycle pays off. A cracked or disturbed seal found early is a small job compared with dozens found at once.