Fire Stopping in Purbrook
Planning work on a service penetration in Purbrook? We look at it, seal it with the right product and hand it over with a 12-month guarantee.
- Seals disturbed by maintenance and left open
- Builders’ foam or ordinary silicone in compartment walls
- Unsealed openings around new pipes and cables
Need fire stopping in Purbrook?
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Fire stopping for commercial buildings in Purbrook
A lot of fire-stopping work comes after M&E installation, a refit or a tenant fit-out. New cable runs, replaced pipework and extra data routes all punch holes in compartment walls, and they are easy to forget. We close the openings listed on your schedule, using the specified sealant and detail. Site teams most often ask us about unsealed openings around new pipes and cables and builders’ foam or ordinary silicone in compartment walls, across pipe penetrations, service gaps in risers and joints between fire-resisting walls and floors. Searching for sealant specialists in Purbrook? Mastic Doctor has worked for contractors, FMs and building owners since 2005.
Older buildings in towns like Purbrook have often been rewired and replumbed several times, with gaps around pipes and cables left after each change. Intumescent or fire-rated sealant is used wherever the specification asks for it, built up exactly as tested.
Guaranteed is the last step of every job. Our workmanship is backed for 12 months, and we explain exactly what that covers when we quote.
- Place
- Purbrook (PO7, PO6)
- Wider area
- Hampshire
- Guarantee
- 12 months on every job
- Price
- Quoted before any work starts
- Call
- 01277 525 020
- Page updated
- 3 November 2026
Looking after the joints
Regular inspection catches problems early. Specifically:
- Check risers and ceiling voids after each round of works
- Settle who seals which penetrations at the start of a project
- Make fire stopping part of every scope that crosses a fire-resisting wall
- Keep general-purpose fillers away from compartment walls
After every round of M&E works, check that the openings created have been sealed. A short check at the end of each job saves a long hunt later.
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.
Towns and villages near Purbrook
Other services in Purbrook
Leave it or put it right?
Fire stopping is a regular point raised at inspections and handover. Late discoveries can delay handover while openings are reopened and resealed. In a town such as Purbrook, a lot of buildings are older and have been altered over time, and joints where old meets new tend to fail first. Renewing them before water gets in protects the fabric.
No two sites price the same: the joint sizes, the specified product, access and working hours each have a bearing. A fixed quote follows once we understand the job.
Why choose Mastic Doctor in Purbrook
- Commercial sealant work since 2005
- One number for every site we cover
- Our applicators hold CSCS cards
- Constructionline member
See our cost guide and how we’re accredited.
How a job runs
Occupied buildings need a little choreography. We sign and contain the area we’re in, keep walkways clear and work section by section so the rest of the building stays in use. In a town such as Purbrook, most jobs are single buildings. Your photos, drawings or a site visit come first, followed by a fixed quote.
- We ask for the product and detail your designer has specified.
- Openings are measured and grouped by detail.
- Improvised fillers and failed sealant are removed.
- Mineral wool or other backing is fitted where required.
- Fire-rated or intumescent sealant goes in around the services and is tooled off.
- Completed areas are checked with you, with the records agreed when we quoted.
Preparing the site
- Agree which areas must stay open
- Point out parking and an unloading spot
- Tell us what induction or permit system the site runs
Ask for a quote
Send details, get a quote, we seal, guaranteed: that’s how every job runs. To take the first step, speak to us on 01277 525 020 or send photos by email.
Advice
Cost factors for service penetrations
Each job is priced on its own details. The main factors are:
- Quantities, in metres or numbers
- Travel to remote or island sites
- Joint width, depth and condition
- Any access equipment needed
What a job costs comes down to the quantity of joints, what has to come out first and how the joints are reached. Call for a quote once you have the details.
What we need to price the job
Whether it’s one area or a whole building, the same details help:
- Any dates the work must fit around
- The type of building and who uses it
- Whether an asbestos survey exists
- Drawings or a marked-up plan, if available
For a fixed quote, speak to us on 01277 525 020 or email a schedule or drawings, telling us the site location and the nature of the job. You can also send details through our quote form.
Compartment walls and floors in Purbrook
For England, the fire stopping of penetrations is dealt with in Approved Document B. References to the older BS 476 classes are being removed from it from 2 September 2029, after which the European classification, BS EN 13501-2, is the route, subject to transitional arrangements. Our part stays the same: the specified product, installed to its tested detail. Central London is about 60 miles from Purbrook. Office refits around the commuter belt bring new cabling through fire-resisting walls; the gaps need the specified seal.
For a building at a site such as Dunsbury Hill Business Park, 1.3 miles to the north-east of Purbrook, a check of penetration seals after each fit-out is good practice. Schools such as Purbrook Junior School often have new data and services installed during holidays, and penetrations through fire-resisting walls should be checked afterwards.
Purbrook is about 2 miles west of Havant, in Hampshire. Looking for fire stopping in Purbrook? We can help. Purbrook is one of 723 places in Hampshire on our list.
Work on service penetrations is covered throughout PO7 and PO6. We cover commercial and managed buildings on London Road, Bliss Close and Delius Walk. Just outside Purbrook, we also work in Purbrook Heath (1 mile west), Widley (1 mile south-west), Waterlooville (1 mile north), Farlington (2 miles south) and Bedhampton (2 miles south-east). Further afield, our area takes in Gosport (7 miles south-west), Eastleigh (15 miles north-west), Fareham (7 miles west), Horndean (3 miles north), Hedge End (12 miles west) and Petersfield (10 miles north-east).
Near you in Purbrook
Around Purbrook, our work takes us to commercial buildings near The Denmead Queen pub and Crookhorn College and the streets around them. Purbrook’s nearest station is Bedhampton station, roughly 1.9 miles south-east. Well-known places in the area include Warblington Castle (3.3 miles south-east) and World War I Remembrance Centre (2.7 miles south). The countryside around Purbrook includes Southmoor Nature Reserve and Portsdown Hill.
For managing agents and facilities managers
Building owners and managing agents use us on sealant work across single buildings or whole portfolios. One quote can cover more than one site, so there’s one set of paperwork to deal with.
Main contractors use us as their sealant subcontractor. We work to your programme, your specification and your site rules, and our applicators hold CSCS cards.
When to call us in Purbrook
Some seals fail because the wrong product went in: builders’ foam or ordinary silicone used to fill a hole. The opening looks sealed but has no fire test evidence behind it and has to be removed.
It’s worth sending us details if you spot any of the following:
- Head-of-wall gaps with no fire seal
- Unsealed openings around new pipes and cables
- Hidden openings found during inspections
- Fire sealant pulled out of the opening
Theatres, wards and plant rooms at sites like Queen Alexandra Hospital, 2 miles to the south-west of Purbrook, all have compartment walls crossed by services.
Comparing quotes
- Their approach to joint depth and backing
- How the joint faces will be prepared and primed
- How they’ll work around occupants
- What the guarantee covers, and for how long
Questions we are asked in Purbrook
What does the BS 476 change mean for fire-rated sealant in Purbrook?
Approved Document B loses its BS 476 references from 2 September 2029, and BS EN 13501-2 becomes the route, subject to transitional arrangements. Whichever applies, we install the specified product to its tested detail; the specification is for the designer to set.
Can you work around term dates at a campus such as University of Portsmouth - Langstone Campus?
Yes. We plan campus work around teaching, exams and residence turnarounds. Let us know which documents your site asks for, and we’ll confirm them alongside the quote.
Is it fine to apply new sealant on top of old?
No, never. Sealing over old material is one of the classic causes of early joint failure, so it all comes out first.
What do you charge?
It depends on the job: quantities, access, the product and any phasing. Call for a quote and we’ll price it properly.
How long do sealant joints last?
Nobody can honestly give a figure in years, since movement, weather, cleaning and use all affect it. Regular checks let you plan resealing before leaks or damage.
How long does a job like this take?
The duration is planned around your programme and the access we’re given. We’ll give you an estimate of time on site when we quote.
Do you take on small jobs?
Single areas, one-off repairs and whole buildings are all quoted the same way: send details, get a fixed quote, we seal, guaranteed.