Fire stopping in Dummer
Commercial sealant work in Dummer for contractors, FMs and building owners: fire-rated and intumescent sealing of service penetrations and linear gaps, quoted at a fixed price.
- Builders’ foam or ordinary silicone in compartment walls
- Fire seals cut back for extra cables and never reinstated
- Fire-stopping items raised at inspection or handover
Need fire stopping in Dummer?
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Fire-rated sealing for Dummer buildings
At about 50 miles from central London, Dummer is within reach of the capital. Tenant changes on commuter-belt business parks mean regular fit-outs, and new services through compartment walls. For England, the fire stopping of penetrations is dealt with in 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. Our part stays the same: the specified product, installed to its tested detail.
Halls and meeting rooms at places like Church of All Saints sometimes gain new services, and any compartment wall crossed needs the specified seal.
Dummer is about 4 miles south-west of Basingstoke, in Hampshire. Our applicators travel to Dummer for work on service penetrations, handled exactly as we handle every other area. Dummer is one of 723 places in Hampshire on our list. There’s a separate page for Reading, about 18 miles away.
We take on service penetrations across the RG25 postcode area, for business premises of every kind. If your site is on Down Street, Post Office Lane and Porters Close or close by, we can quote for service penetrations. We also cover North Waltham (2 miles west), Farleigh Wallop (2 miles east), Kempshott (2 miles north), Hatch Warren (2 miles north-east) and Oakley (3 miles north) for service penetrations. Nearby towns on our patch include Basingstoke (4 miles north-east), Winchester (13 miles south-west), Fleet (15 miles east), Andover (14 miles west), Alton (9 miles south-east) and Tadley (10 miles north).
Near you in Dummer
We work on buildings around The Queen Inn. Dummer’s nearest station is Micheldever station, roughly 4.8 miles south-west of the centre. Nearby you’ll also find Park Prewett Hospital (5 miles north). For a walk, there’s Farleigh Hill.
About our fire stopping in Dummer
Fire-rated sealant suits many small service penetrations: copper and steel pipes, cables and some small ducts where the tested detail allows. Other openings need collars, wraps, batts, pillows or boards. We use sealant where it is the specified product, and we tell you when a detail calls for something else. We work on linear gaps at wall heads, pipe penetrations and service gaps in risers, and the failures we are asked to look at most are snag lists that include open service penetrations and non-fire-rated filler around services. Whether you call it commercial sealant work, mastic application or joint sealing, the work in Dummer is the same: the right product in a properly prepared joint.
Barn and farm-building conversions near places like Dummer often combine new partitions with old walls. A penetration seal only performs as tested if product, substrate, service, gap and depth all match the detail.
We stand behind the joints we seal: 12 months, guaranteed. That covers our preparation and application.
- Where
- Dummer (RG25)
- Wider area
- Hampshire
- Guarantee
- 12 months on every job
- Quote
- Fixed quote, scope in writing
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
Nearby places to Dummer
Also in Dummer
Dummer: questions and answers
What happens to BS 476 references for fire stopping in Dummer?
From 2 September 2029, Approved Document B drops its BS 476 references in favour of BS EN 13501-2 classification, with transitional arrangements. Whichever applies, we install the specified product to its tested detail; the specification is for the designer to set.
Is Dummer too far out for you?
No. Places such as Dummer are covered as much as the big towns. Our area covers London and the South East counties. We plan jobs in smaller places so return trips are kept to a minimum.
Can the building stay open while you work?
Normally, yes. We phase the work so most of the building stays in use, with each area protected and signed.
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 will confirm the colours available for the specified product.
Are you CHAS accredited and on Constructionline?
Yes. Mastic Doctor is CHAS accredited and a Constructionline member, which helps with supplier vetting.
Who decides which product is used?
If the job is specified, we follow the specification. If not, we choose for the movement, the surfaces and the conditions, in line with the manufacturer’s guidance.
When can you be on site?
Mention the site’s hours and access windows in your enquiry, and we will schedule the work to suit. Our office runs Monday to Friday, 8am until 5pm.
Signs you need fire stopping in Dummer
Fire stopping can get squeezed at the end of a programme, or done by whoever is on site. That is how unsuitable products and improvised details end up in compartment walls and later need putting right.
It’s worth sending us details if you spot any of the following:
- Unsealed openings around new pipes and cables
- Fire-stopping items raised at inspection or handover
- Open linear gaps along the top of fire-resisting walls
- Hidden openings found during inspections
At a healthcare site like Park Prewett Hospital, 5 miles to the north of Dummer, new services through compartment walls are a constant, and each needs the specified seal.
What to look for in a quote
- Which product they’ll use, and why it suits the joint
- Their approach to joint depth and backing
- Who will actually carry out the work
- Whether old or failed sealant will be cut out, not overlaid
Site staff or a sealant specialist?
A short, simple internal joint is often within reach of a maintenance team. Where it goes wrong is preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.
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.
How the job changes by surface
Risers and ceiling voids
Risers and ceiling voids hold most of a building’s service penetrations. Access is often tight, so we agree it with you in advance, including keys, permits and any isolations.
Small ducts
Ducts are only sealed with sealant where the detail allows it. Dampers and ductwork systems themselves are outside our work.
How a job runs
Site rules come first: sign-in, induction and whatever permit system the building uses. With the paperwork done, we take the joints in the sequence agreed with you, and each area is checked before we leave it. For a building around Dummer, tell us how to find it and who will meet us. Add it to your enquiry and we’ll build it into the plan.
- First we go through the drawings, schedule or specification for the seals and raise any questions before we price.
- Every penetration is compared with its detail: wall or floor type, service, gap size and depth.
- Unsuitable fillers and loose debris are taken out of each opening.
- Mineral wool or other backing goes in wherever the detail asks.
- We apply the specified sealant to the depth and around the services as the detail shows.
- Openings that need a collar, wrap, batt or other product are flagged to you rather than filled with sealant.
Preparing the site
- Send your site hours and access windows
- Explain the parking and delivery arrangements
- Have the specification and drawings to hand
Getting a fixed quote
Specifications, drawings and tender packages are welcome with any enquiry, and we will price the work to it. Smaller jobs need nothing more than photographs and a few notes.
Advice
Why act early in Dummer
Open service penetrations matter on ordinary days, not just in a fire: smoke, noise and draughts pass through them every day. The specified fire seal closes the gap for all of these, and the other benefits follow. Older rural buildings around Dummer move with the seasons, and rigid or tired sealant can’t keep up. The right product, sized to the joint, copes much better.
The product called for affects the cost, and so does the preparation, from cutting out to priming and backing rod. Access, phasing and site requirements come into it too.
Why appoint us
- Failed material removed, not covered up
- A Constructionline member, so easy to vet
- A fixed quote before work starts
- 12 months’ guarantee on every job
Read what affects the cost and our accreditations and insurance.
After the work
Once the work is signed off, a little attention goes a long way:
- Get seals inspected before ceilings and boxing close
- Report damaged or disturbed seals as soon as they’re spotted
- Check with the data sheet before painting over fire sealant
- Foam or ordinary sealant is never a fire-seal repair
After the work, brief anyone else working in the area that the openings are now sealed. Any seal cut back for a new service needs reinstating to its tested detail.
The simplest way to keep compartment walls intact is to plan fire stopping into every job that crosses them. Then the seal goes in while the area is open, not months later.