Fire stopping in Fair Cross
Work needed on a service penetration in Fair Cross? We look at it, seal it with the right product and hand it over with a 12-month guarantee.
- Service penetrations left open after M&E works
- Old intumescent sealant that has split away
- Seals that don’t match their tested detail
Fire stopping for Fair Cross sites
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
What sets the cost
There’s no standard rate for sealant work, because every site is different. What we look at:
- Whether the work must be split into stages
- The total length or number of joints
- Backing rod, priming and other preparation
- Removal of failed or old sealant
We don’t publish prices, because the scope varies so much from one building to the next. For a fixed figure, call for a quote and we will price your job on its own details.
Details that help us quote
Whether it’s one area or a whole building, the same details help:
- Anything awkward about access or site hours
- Approximate linear metres or a joint schedule
- A wide shot and a close-up of the area
- Where the site is, with the postcode
Photos, drawings or a schedule of the joints and a fixed quote comes back to you. Where a site visit makes more sense, we’ll arrange one.
Fire stopping in Fair Cross, done properly
No fire sealant works on its own: the evidence covers a specific product, wall or floor type, service, gap, depth 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. The enquiries we see most involve openings left by services added after handover and penetration schedules that need working through, across service gaps in risers, small duct penetrations where the tested detail allows and cable penetrations. A specialist sealant contractor works differently from a general builder: in Fair Cross, that means joint design, primers and backing rod as standard.
Barn and farm-building conversions near places like Fair Cross often combine new partitions with old walls. Where a pipe or cable passes through a fire-resisting wall, the seal must match the tested detail: product, substrate, gap and depth.
A 12-month guarantee applies to all our work. Should something we installed fail, phone 01277 525 020 or send photos by email and we will come back to it.
- Place
- Fair Cross (RG7)
- Region
- Hampshire
- Cover
- 12 months on our workmanship
- Quote
- Quoted before any work starts
- Call
- 01277 525 020
- Last updated
- 3 November 2026
Different surfaces, different methods
Plastic pipes
Waste and drainage pipes through floors are a frequent case. The detail decides whether sealant alone is enough, and we won’t substitute it for a specified collar.
Masonry and concrete
Many seals are made in blockwork, brickwork or concrete slabs. Dust and debris are cleared from the opening, so the sealant and any backing sit properly.
Why deal with it now?
The longer openings stay, the more there tend to be: each new service adds to the list. Keeping on top of it after each round of works keeps the job small. One visit to deal with every failing joint makes more sense than several trips to a place like Fair Cross. Photos of every joint help us quote for the whole job.
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.
Why choose Mastic Doctor in Fair Cross
- A fixed quote before work starts
- Constructionline member
- Public liability insurance in place
- CHAS accredited
See how commercial sealant jobs are priced or how we’re accredited.
Where services cross fire walls in Fair Cross
Fair Cross lies roughly 40 miles out from central London. Business park offices in the commuter belt are refitted as tenants change, and each fit-out adds services through compartment walls. Fire stopping of openings and penetrations in England falls under 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.
Halls and meeting rooms at places like Church of St. Mary the Virgin sometimes gain new services, and any compartment wall crossed needs the specified seal. Tenant changes at parks like Riseley Business Park (1.7 miles east of Fair Cross) bring new data and services, and openings through fire-resisting walls need the specified seal.
Fair Cross is about 6 miles east of Tadley, in Hampshire. Commercial clients in Fair Cross can call on us for service penetrations. Across Hampshire, 723 places are covered, including Fair Cross. Our Reading page has more on work in that area, about 6 miles away.
We cover the RG7 postcode districts for service penetrations. Close to Fair Cross, our area also takes in Stratfield Saye (1 mile south-west), West End Green (2 miles west), Stratfield Mortimer (2 miles north-west), Spanish Green (2 miles south) and Wokefield (3 miles north-west). A short drive away, we cover Basingstoke (8 miles south-west), Farnborough (11 miles south-east), Fleet (9 miles south-east), Aldershot (13 miles south-east), Alton (15 miles south) and Yateley (7 miles east).
What’s near Fair Cross
The closest station to Fair Cross is Mortimer station, roughly 1.7 miles north-west of the centre. A little further out are Beaumys Castle (1.5 miles north-east). The countryside around Fair Cross includes The Marshes Local Nature Reserve and Longwater.
Honest limits
We check first that sealant really is the fix. It isn’t the answer for:
- Openings that need collars, wraps, batts or boards rather than sealant
- Gaps in walls that were never built as compartment walls
- Reviewing a building’s overall fire safety
If in doubt, call 01277 525 020 or email drawings and photos and we will say what we think.
Joints and surfaces we work on
- Linear gaps at wall heads
- Service gaps in risers
- Cable penetrations
- Small duct penetrations where the tested detail allows
- Joints between fire-resisting walls and floors
- Pipe penetrations
Common questions from Fair Cross clients
Will you take on work at estates like Riseley Business Park, close to Fair Cross?
Yes, sites like Riseley Business Park are within our area, along with the rest of Fair Cross. Photos and a short description are enough for a first look.
Is Fair Cross too small for you to travel to?
Not at all: smaller places are covered as well as towns. We work across Greater London and the South East. Send photos and a list of what needs doing, and we will plan the job to need as few trips as possible.
Can you seal any opening with fire-rated sealant?
No. Each fire-rated sealant is tested for particular services, gap sizes and substrates. Outside that, a different product is needed, as set out by the designer.
How long does a job like this take?
The duration is planned around your programme and the access we’re given. We will give you an estimate of time on site when we quote.
Do you offer coloured sealant?
In many cases, yes. Many products come in a range of standard colours, and matching to RAL references or surrounding finishes is often possible. We’ll confirm the colours available for the specified product.
How long will the new sealant 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.
Is it fine to apply new sealant on top of old?
No. Overlaying old sealant is a frequent cause of early failure, so everything comes out first.
Doing it in-house
Putting right a botched joint often costs more than sealing it well at the start, because the whole bead must be removed and the faces cleaned back again. That’s why many clients bring in a specialist from the beginning.
Certain joints really need a specialist: for instance fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. A poor seal in places like these tends to cost more to put right later.
On site: what to expect
We schedule the visit to fit the site hours and access windows you give us. While we are working, the area stays contained and tidy, and we check in with your contact before moving on to each new area. For a building around Fair Cross, 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.
- First we confirm the product and tested details named in the specification.
- Openings are measured and grouped by detail.
- Old or wrong materials are cut out.
- Mineral wool or other backing is fitted where required.
- We gun the sealant in to the specified depth around each service and tool it.
- Completed areas are checked with you, with the records agreed when we quoted.
Before we start on site
- Arrange parking or a loading space
- Flag any permit to work we’ll need
- Let building users know which areas are affected
Request a quote
If there’s a specification, drawings or a tender package, send it with your enquiry, and we will price the work to it. Smaller jobs need nothing more than photographs and a few notes.