
Fire stopping in Shermanbury
Fire-rated and intumescent sealing of service penetrations and linear gaps in Shermanbury and across West Sussex. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- Unsealed penetrations discovered above suspended ceilings
- Damaged fire seals in risers and voids
- Openings left by services added after handover
Fire stopping near Shermanbury
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
How we handle fire stopping in Shermanbury
Most of our fire stopping work happens after the building is up. Each new cable, pipe or data route cut through a fire-resisting wall leaves an opening behind, often unnoticed. Those on your schedule are closed with the specified product. We work on cable penetrations, linear gaps at wall heads and pipe penetrations, and what we are called in for most is fire stopping installed outside its tested range and damaged fire seals in risers and voids. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in Shermanbury, preparation and product choice get the time they need.
Around smaller places like Shermanbury, penetration seals come up in schools, halls, pubs with rooms, care homes and farm buildings used as offices. Any service penetration through those walls should be closed with the specified product, set out as its test evidence shows.
What our 12-month guarantee covers is the way we did the job: preparation, application and finish. Damage, later alterations by others and movement beyond what the joint was designed for sit outside it.
- Place
- Shermanbury (RH13)
- Wider area
- West Sussex
- Guarantee
- 12 months on our workmanship
- Quote
- A fixed quote before we start
- Call
- 01277 525 020
- Page updated
- 3 November 2026

Your questions answered
Is a smaller place like Shermanbury outside your area?
No. Places such as Shermanbury are covered as much as the big towns. We work across Greater London and the South East. Send photos and a list of what needs doing, and we’ll plan the job to need as few trips as possible.
Do you take on work at healthcare sites like The Dene Hospital?
Yes, healthcare and care buildings are part of our work. We follow the site’s permits, sign-in and infection-control procedures in every area.
Is the work guaranteed?
Yes, for 12 months. If a joint fails because of how we installed it, we come back and put it right.
Do you have public liability insurance?
Yes. Mastic Doctor is fully insured, public liability included.
What happens if old sealant might contain asbestos?
The duty to manage asbestos sits with the building’s dutyholder, so for older buildings we ask for the asbestos register first. Work pauses if suspect material is found, until it has been tested.
Is fire stopping in Scotland covered by different guidance?
Scotland sets its own building regulations, with Technical Handbooks, while England relies on Approved Document B. Wherever the site is, our work follows the specification and the tested detail.
Do you approve fire stopping for building control?
No. Sign-off belongs to the designer or building control, not the installer. We’ll confirm the product and detail installed.
How the job changes by surface
Cables and cable bundles
Data cabling added after handover is a regular cause of open service penetrations. We reseal around them to the specified detail.
Masonry and concrete
Core-drilled holes are neat; broken-out ones rarely are. Each gap is measured where it is widest so we know it sits within the tested range, and any outside it are raised with you.
Also near Shermanbury
Also in Shermanbury
Our process
We bring the products specified for the job, along with primers and backing rod. Any old material is cut back to clean, sound faces, the manufacturer’s primer is applied where it’s called for, and the sealant is tooled off neatly. For a building around Shermanbury, tell us how to find it and who will meet us. Add it to your enquiry and we will build it into the plan.
- 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.
- Where the detail needs backing, it goes in at the stated depth.
- Fire-rated or intumescent sealant goes in around the services and is tooled off.
- We walk the completed areas with you and confirm the records agreed at quote stage.
What we need from you
- Share your working hours and any access restrictions
- Let us know about inductions and permits
- Arrange parking or a loading space
Get a fixed quote
Send details, get a quote, we seal, guaranteed: that’s how every job runs. The first step is to phone 01277 525 020 or email a schedule or drawings with what you know.
Advice
Commercial clients in Shermanbury
FMs need a contractor who is easy to get on site. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we will confirm them with the quote.
Main contractors use us as their sealant subcontractor. Programme, specification and site rules come first, and our applicators hold CSCS cards.
Compartment walls and floors in Shermanbury
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. What we install is set by the specification, and it goes in to the tested detail. Shermanbury is about 38 miles from central London. Business park offices in the commuter belt are refitted as tenants change, and each fit-out adds services through compartment walls; the gaps need the specified seal.
On estates like Star Trading Estate (0.9 miles west of Shermanbury), the wall between office and warehouse is often fire-resisting, and cables through it need the specified seal. At a healthcare site like The Dene Hospital (5.2 miles east of Shermanbury), new services through compartment walls are a constant, and each needs the specified seal. In a school such as Jolesfield CofE Primary School, fire-rated sealant goes in around service penetrations where it is specified.
Shermanbury is about 7 miles west of Burgess Hill, in West Sussex. Businesses, contractors and managing agents in Shermanbury use us for work on service penetrations. Shermanbury is one of 373 places in West Sussex on our list. Brighton is covered too, around 11 miles from Shermanbury.
Anyone looking for fire stopping in RH13 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. Among the streets we cover are Knapp Drive, Brighton Road and Partridge Green Road, and sites on any of them can send details for a fixed quote. We also cover Kent Street (2 miles north-east), Cowfold (2 miles north), Wineham (2 miles east), Henfield (2 miles south) and Blackstone (3 miles south-east). A short drive away, we cover Crawley (11 miles north), Horsham (7 miles north), Worthing (11 miles south-west), Haywards Heath (9 miles east), Burgess Hill (7 miles east) and Littlehampton (15 miles south-west).
Around Shermanbury
Locally, jobs take us to sites close to The Bull Inn. A little further out are The Dene Hospital (5.2 miles east). For a walk, there’s Knepp Wildland.
How the quote is worked out
The price varies from site to site. It mainly depends on:
- Specialist products, such as fire-rated or hygienic sealants
- The size and state of each joint
- Phasing around occupants
- Distance, for remote addresses
We don’t publish prices, because the scope varies so much from one building to the next. Call for a quote.
Sending details for a quote
There’s no need for a formal survey. These details are enough to start:
- The postcode of the building
- The asbestos register, for older buildings
- A wide shot and a close-up of the area
- Any specification or named product
To get a fixed quote, phone 01277 525 020 or email drawings and photos, telling us the site location and the nature of the job. Our quote form is another easy route.
Why it’s worth doing now in Shermanbury
An open or wrongly sealed service penetration lets fire and smoke reach the next compartment much sooner than the building was designed for. Putting it right is normally a modest job when the openings are accessible. Wait until ceilings close or areas are occupied and the same work becomes harder to reach. One visit to deal with every failing joint makes more sense than several trips to a place like Shermanbury. Photos of every joint help us quote for the whole job.
Whether it’s a single area or a whole estate, the same things set the price: scope, access, product and programme. Call for a quote, and you’ll have a fixed figure to work with.
Why appoint us
- Fully insured, including public liability cover
- 12-month guarantee on workmanship
- Joints cleaned back to sound surfaces
- One contact handling all your sites
Take a look at how commercial sealant jobs are priced or our accreditations.
Aftercare for building managers
Every sealant joint needs some looking after, and how long they last depends on how they’re treated. We suggest:
- Report damaged or disturbed seals as soon as they’re spotted
- Record which product was used where
- Look above ceilings when tiles are lifted for other jobs
- Arrange inspection before areas are covered up
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.
Looking at service areas on a regular cycle pays off. Catching a damaged seal early keeps the fix small; found late, it can be one of many.