
Fire-rated sealing and fire stopping in Farlington, Portsmouth
Commercial sealant work in Farlington for contractors, FMs and building owners: fire-rated and intumescent sealing of service penetrations and linear gaps, with a fixed quote first.
- Expanding foam used as fire stopping
- Fire sealant pulled out of the opening
- Snag lists that include open service penetrations
Fire stopping for businesses in Farlington
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Work for main contractors and building owners
CHAS accredited and a Constructionline member, we are straightforward to vet for your supplier list. Our insurance certificate can be sent along with the quote.
Housing associations and managing agents often need work done across blocks and communal areas. We phase the work so people keep access, with each stage agreed with your site contact.
Fire stopping in Farlington, done properly
A fire-rated sealant is only one part of a tested system: the evidence covers a specific product, wall or floor type, service, gap, depth and backing. We match each opening to that detail before any sealant goes in, and raise it with you if it falls outside. If you have hidden openings found during inspections and penetration schedules that need working through, we can put it right. A single leaking joint is often how a building in Farlington first comes to us: we check the joints around it and give you an honest view of what needs doing now and what can wait.
In places the size of Farlington, 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.
Every job ends the same way: guaranteed. You get a 12-month guarantee on our workmanship, and the quote explains what it covers.
- Place
- Farlington (PO6, PO9, PO7)
- Wider area
- Portsmouth
- Guarantee
- 12 months on our workmanship
- Quote
- Quoted before any work starts
- Call
- 01277 525 020
- Last updated
- 3 November 2026

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. That’s why many clients bring in a specialist from the beginning.
The visible bead is only part of the job. Backing rod, primer where specified and a joint designed to move with the building are easy to get wrong without experience.
From enquiry to sign-off
Working in a building that stays open takes some planning. We sign and contain the area we are in, keep walkways clear and work section by section so the rest of the building stays in use. Several jobs near Farlington can be grouped on one trip. Mention the building’s opening times and we will work within them.
- The specification and schedule come first, so we know which details apply.
- We plan the sequence of floors, risers and voids with you.
- We compare every service penetration with its tested detail before sealing.
- Unsuitable material is removed and the opening cleaned.
- Backing and fire-rated sealant are installed to the detail and tooled.
- Anything outside the detail is reported to you rather than sealed.
What we need from you
- Warn occupants and staff about the work
- Let us know about inductions and permits
- Point out any areas we must not close
Getting a fixed 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, call 01277 525 020 or send details through our quote form.
Related advice
Questions we are asked in Farlington
Would you work within a site like Queen Alexandra Hospital?
Yes, hospitals are one of the sectors we cover. Work is phased so departments keep running, under the site’s own rules.
Could you schedule work at a campus like University of Portsmouth - Langstone Campus for the vacation?
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.
Do you approve fire stopping for building control?
No. We don’t certify or sign off fire stopping, and we hold no third-party fire-stopping installer certificate. Our part is fitting the specified product to its tested detail.
Do you seal on top of existing sealant?
No, never. Overlaying old sealant is a frequent cause of early failure, so everything comes out first.
Will fire-rated sealant work on every penetration?
No. Each fire-rated sealant is tested for particular services, gap sizes and substrates. Outside that, a different product is needed.
Do you work to architects’ specifications?
Yes. Include it with the drawings when you ask for a quote, and the quote will be based on it, flagging anything that needs clarifying.
Can you send site paperwork?
Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote.
Quoting for work in Farlington
Before we quote, we look at:
- Location, for remote and island sites
- How accessible the joints are
- Phasing around occupants
- Which sealant the job calls for
Cost follows what’s involved: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a fixed quote and we will explain how it’s made up.
What to include in your enquiry
There’s no need for a formal survey. These details are enough to start:
- Your programme or deadline
- How the joints are reached, and at what height
- The site address and postcode
- Approximate linear metres or a joint schedule
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’ll fill any gaps with a visit.
Looking after the joints
Once the work is signed off, a little attention goes a long way:
- Keep general-purpose fillers away from compartment walls
- Flag new cables with no seal around them
- Check risers and ceiling voids after each round of works
- File the specified details where the next contractor can find them
After every round of M&E works, check that the openings created have been sealed. Building it into each contractor’s sign-off keeps the walls intact.
Write fire stopping into the scope of any work crossing a compartment wall or floor. Then the seal goes in while the area is open.
Nearby places to Farlington
Other services in Farlington
Why act early in Farlington
An unsealed opening affects more than fire safety: they also carry noise, draughts and smells between rooms. Sealing them to the specified detail deals with the fire risk first and the building feels the difference. Sealant hardens, cracks and loses grip with age, UV and movement. Renewing it in good time keeps the building weathertight.
Every site prices differently: joint size, product, access and site hours all play a part. Send the details and a fixed figure follows.
Why choose Mastic Doctor in Farlington
- A Constructionline member, so easy to vet
- Fixed quotes based on photos, drawings or a visit
- CHAS accredited
- Failed material removed, not covered up
Read how commercial sealant jobs are priced or our accreditations.
Penetration seals near Farlington
Farlington lies roughly 61 miles out from central London. Office refits around the commuter belt bring new cabling through fire-resisting walls. Several hotels sit less than 2 miles from Farlington. Hotels are divided into compartments, and refurbishments that add pipes and cables through bedroom and corridor walls leave gaps to close.
In a retail centre such as Solent Retail Park, 2 miles to the east of Farlington, any fire-resisting wall between units that is crossed by new services needs sealing to the tested detail. For a site team at a college like Portsmouth College (2.7 miles south of Farlington), fire-rated sealing is best scheduled after the summer works. Where a unit on an estate such as Railway Triangle Industrial Estate, 1 mile south-west of Farlington, has fire-resisting walls between offices and warehouse, any new service through them should be sealed to the tested detail.
Farlington is about 2 miles south of Purbrook, in Portsmouth. We send applicators to Farlington for service penetrations. Our Portsmouth coverage takes in 19 places, from busy centres to rural villages.
Business premises anywhere in PO6, PO9 and PO7 are within our area. Streets here include Galt Road, Grant Road and Havant Road. Close to Farlington, our area also takes in Drayton (1 mile west), Widley (1 mile north-west), Cosham (1 mile west), Bedhampton (1 mile north-east) and Purbrook (2 miles north). Bigger towns within reach include Portsmouth (3 miles south-west), Southsea (5 miles south), Milton (4 miles south), Landport (4 miles south-west), Baffins (3 miles south) and Rudmore (3 miles south-west).
Local landmarks in Farlington
Around Farlington, our work takes us to commercial buildings near Springfield School, Springfield School and New Inn, among other places. Farlington’s nearest station is Cosham station, about 1.5 miles west of the centre. Well-known places in the area include Warblington Castle (2.9 miles east) and Queen Alexandra Hospital (1.6 miles west). For a walk, there’s Portsdown Hill and Southmoor Nature Reserve.