Fire-rated sealing and fire stopping in Brockbridge, Hampshire
We carry out fire-rated and intumescent sealing of service penetrations and linear gaps in Brockbridge and the surrounding area. Send details for a fixed quote.
- Openings left by services added after handover
- Fire-rated sealant that has cracked or shrunk back
- Seals that don’t match their tested detail
Fire stopping across Brockbridge
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
How we handle fire stopping in Brockbridge
We are commercial sealant applicators, CHAS accredited and a Constructionline member, with CSCS-carded applicators on site. We hold no third-party fire-stopping installer certificate and we’d rather say that up front. What we offer is careful installation of the specified sealant to its tested detail, with a 12-month guarantee on our workmanship. We work on pipe penetrations, service gaps in risers and cable penetrations, and the usual reasons a site gets in touch are openings left by services added after handover and fire sealant pulled out of the opening. Whether you call it commercial sealant work, mastic application or joint sealing, the work in Brockbridge is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.
Around smaller places like Brockbridge, 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.
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 spell out the cover before we begin.
- Place
- Brockbridge (SO32)
- Region
- Hampshire
- Cover
- 12 months on our workmanship
- Quote
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Updated
- 3 November 2026
Fire-rated sealing for Brockbridge buildings
Central London is about 58 miles from Brockbridge. Office refits around the commuter belt bring new cabling through fire-resisting walls; the gaps need the specified seal. Fire stopping of openings and penetrations in England falls under Approved Document B. The national BS 476 classes are due to drop out of it from 2 September 2029, leaving the European BS EN 13501-2 route, subject to transitional arrangements. We install whatever has been specified, to the product’s tested detail.
Schools such as Meonstoke Church of England Infant School often have new data and services installed during holidays, and penetrations through fire-resisting walls should be checked afterwards.
Brockbridge is about 4 miles east of Bishop's Waltham, in Hampshire. We send applicators to Brockbridge for service penetrations. Brockbridge is one of 723 places we cover in Hampshire for service penetrations. Portsmouth is covered too, around 11 miles from Brockbridge.
If you need fire stopping in SO32, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. Streets here include Mill Lane, Union Lane and High Street. Brockbridge sits on or close to the A32. Just outside Brockbridge, we also work in Droxford (1 mile south-west), Meonstoke (1 mile north-east), Corhampton (1 mile north), Exton (1 mile north) and Soberton (1 mile south). A short drive away, we cover Winchester (10 miles north-west), Gosport (11 miles south), Havant (10 miles south-east), Eastleigh (9 miles west), Fareham (8 miles south) and Horndean (7 miles south-east).
Landmarks near Brockbridge
Locally, jobs take us to sites close to The Bakers Arms, among other places. A little further out are Bishop's Waltham Museum (3.7 miles west). For a walk, there’s St Clair's Meadow and Beacon Hill.
Places near Brockbridge
Also in Brockbridge
What we can’t put right
We check first that sealant really is the fix. It isn’t the answer for:
- Signing off or certifying a building’s fire stopping
- Designing or specifying fire stopping, which sits with the designer or fire engineer
- Plastic pipes whose detail calls for a collar or wrap
If you are not sure, just call the office on 01277 525 020 or email a schedule or drawings and we’ll give you a straight answer before you book.
What we seal
- Pipe penetrations
- Joints between fire-resisting walls and floors
- Linear gaps at wall heads
- Small duct penetrations where the tested detail allows
- Service gaps in risers
- Cable penetrations
When to call us in Brockbridge
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.
Things that usually lead to an enquiry:
- Service penetrations left open after M&E works
- Expanding foam used as fire stopping
- Seals that don’t match their tested detail
- Head-of-wall gaps with no fire seal
Halls and meeting rooms at places like Church of St Mary and All Saints sometimes gain new services, and any compartment wall crossed needs the specified seal.
What to look for in a quote
- Will failed sealant be removed rather than covered?
- The named product and why it was chosen
- Their pre-qualification and accreditations
- Whether primer will be used where the manufacturer specifies it
What sets the cost
The price varies from site to site. Expect it to depend on:
- Distance, for remote addresses
- Backing rod, priming and other preparation
- The total length or number of joints
- The product specified
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.
Sending details for a quote
However big the job, these details speed things up:
- Anything awkward about access or site hours
- Approximate linear metres or a joint schedule
- The asbestos register, for older buildings
- Any specification or named product
Tell us about the building, the joints and when you need the work done, and we will put a fixed quote together. To get it moving, phone 01277 525 020 or use the quote form.
What the job involves on each surface
Cables and cable bundles
Cable penetrations are frequently sealed with fire-rated sealant where the detail allows. Bundle size, cable type and the space between cables all matter and we work within those limits.
Drylining partitions
Drylined fire walls are tested in a particular build-up. The sealant detail has to be tested in that wall type, with the stated board layers first.
Keeping the joints sound
Keep the joints in good shape with a few simple steps:
- Check risers and ceiling voids after each round of works
- Don’t let anyone top up a fire seal with the wrong product
- Brief every trade that openings they make must be sealed
- Treat an open penetration as a priority repair
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, and it helps at inspections.
On site: what to expect
Diagnose, treat, sign off: that’s the shape of every visit. 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. Smaller jobs around Brockbridge can be grouped with others nearby. A fixed quote is given before anything starts.
- We start with your penetration schedule, drawings or specification.
- We plan the sequence of floors, risers and voids with you.
- We compare every service penetration with its tested detail before sealing.
- Foam, ordinary sealant and debris come out so the seal starts clean.
- The specified backing and sealant go in to depth and are finished neatly.
- We tell you about openings that need a different product.
Preparing the site
- Send asbestos survey details if the building is pre-2000
- Flag any permit to work we will need
- Point out any areas we must not close
Quotes
Every job follows the same four steps: send details, get a quote, we seal, guaranteed. The first step is to ring 01277 525 020 or send details through our quote form with what you know.
Advice
Common questions from Brockbridge clients
Is a smaller place like Brockbridge outside your area?
No. Small places get the same service as large ones. We work across Greater London and the South East. We plan jobs in smaller places so return trips are kept to a minimum.
Do you design the fire stopping for buildings in Brockbridge?
No. The designer or fire engineer sets the detail and building control accepts it. We install fire-rated and intumescent sealant around service penetrations and linear gaps where it is specified, to the manufacturer’s tested detail.
Do you have public liability insurance?
Yes. Mastic Doctor is fully insured, public liability included.
Is any job too small?
Whatever the size, the process is the same: details, then a fixed price, then sealing, then a 12-month guarantee.
How long does a job like this take?
That varies with the scale of the job, though a typical visit normally takes a single visit for a short list of penetrations, or a phased programme for a whole building. Larger or phased jobs take longer, and we will give you a timescale with the quote.
Can the building stay open while you work?
Yes, with some planning. We agree a sequence with your contact so just one area at a time is disrupted.
Do you need to see the site first?
That depends on the size and complexity of the job. Simple work can often be priced from photographs, while larger or less clear jobs get a site visit first.