Fire-rated sealing and fire stopping in Five Oaks, West Sussex
Commercial sealant work in Five Oaks for contractors, FMs and building owners: fire-rated and intumescent sealing of service penetrations and linear gaps, quoted at a fixed price.
- Fire stopping installed outside its tested range
- Seals disturbed by maintenance and left open
- Old intumescent sealant that has split away
Fire stopping near Five Oaks
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
About our fire stopping in Five Oaks
Every service that crosses a compartment wall or floor leaves an opening, and that opening needs sealing to hold back fire and smoke. Our part is installing fire-rated and intumescent sealant at those openings and along linear gaps, where the specification calls for it. We work to the product’s tested detail for every seal. We work on cable penetrations, linear gaps at wall heads and service gaps in risers, and the usual reasons a site gets in touch are penetration schedules that need working through and fire-rated sealant that has cracked or shrunk back. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in Five Oaks, preparation and product choice get the time they need.
Barn and farm-building conversions near places like Five Oaks 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 by our work: 12 months, guaranteed. That covers our preparation and application, and if something we did falls short, we return to it.
- Place
- Five Oaks (RH14)
- Wider area
- West Sussex
- Cover
- 12 months on every job
- Price
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Updated
- 3 November 2026
On site: what to expect
We begin with a short walk round with whoever looks after the building, agreeing which joints are in scope, where to start and what must stay open. Then we strip out anything that has failed, prepare every joint and seal it. If others near Five Oaks need work, visits can be combined. A fixed quote is given before anything starts.
- First we go through the drawings, schedule or specification for the seals and ask about anything unclear.
- Every penetration is compared with its detail: wall or floor type, service, gap size and depth.
- Anything that doesn’t belong in the opening, such as expanding foam or general-purpose filler, is removed.
- We fit the backing the detail asks for, to the stated depth.
- Fire-rated or intumescent sealant is gunned in to the specified depth, then tooled.
- If an opening needs something other than sealant, we tell you instead of improvising.
Preparing the site
- Explain the parking and delivery arrangements
- Send asbestos survey details if the building is pre-2000
- Tell us which areas need to stay in use
Request a quote
Send us photographs, drawings or a joint schedule are often enough for a fixed quote. Where a site visit makes more sense, we’ll arrange one.
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FAQs: Five Oaks
Does your area include sites such as Billingshurst Trade Park, near Five Oaks?
Yes. We cover Five Oaks and the area around it, including industrial estates, business parks and retail parks such as Billingshurst Trade Park. To start, just ring 01277 525 020 or use the quote form with the unit, the joints involved and your access times.
Can you take on a job at a hospital such as Horsham Hospital?
Yes, hospitals are one of the sectors we cover. We follow the site’s permits, sign-in and infection-control procedures in every area.
Do you take on small jobs?
We quote for single jobs as well as large packages and programmes. Send details for a fixed quote.
What site paperwork can you supply?
Let us know which documents the site needs, such as RAMS, an insurance certificate or CSCS details, and we will confirm them with the quote.
What do you charge?
Every job gets its own fixed quote. To get one, call the office on 01277 525 020 or send photos by email.
What do BS EN 1366-3 and BS EN 13501-2 mean?
In short, BS EN 1366-3 and 1366-4 are the fire tests and BS EN 13501-2 is how results are classified. An EI 60 seal kept its integrity and insulation for 60 minutes as tested.
Can one quote cover more than one building?
Yes. We take on portfolio and planned maintenance work, with each site phased to suit its occupants.
Work for main contractors and building owners
Housing associations and managing agents often need work done across blocks and communal areas. We phase the work so people keep access, and each stage is agreed with your contact.
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.
Why it’s worth doing now in Five Oaks
Fire stopping is a regular point raised at inspections and handover. Finding unsealed or improvised openings late can hold up a programme which is why earlier is better. Halls, stores and units around places like Five Oaks may not be checked every day, so a failed joint can leak for a while before anyone sees it. Renewing joints in good time avoids the problem.
Small jobs and large programmes are priced from the same things: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote and we’ll put a fixed figure on it.
Why choose Mastic Doctor in Five Oaks
- One number for every site we cover
- A Constructionline member, so easy to vet
- Clear, fixed quotes
- Products installed to the manufacturer’s instructions
Do you need fire stopping in Five Oaks?
A common fault is a product that was never fire-rated in the first place: expanding foam or a general-purpose sealant pushed into a gap to tidy it. The opening looks sealed but has no fire test evidence behind it, so it has to come out.
Look out for the following:
- Unsealed openings around new pipes and cables
- Non-fire-rated filler around services
- Unsealed penetrations discovered above suspended ceilings
- Unsealed joints where partitions meet the slab
Where a unit on an estate such as Billingshurst Trade Park, 1.2 miles to the south-west of Five Oaks, has fire-resisting walls between offices and warehouse, any new service through them should be sealed to the tested detail.
Questions to ask before you book
- The terms of the workmanship guarantee
- Health and safety accreditation such as CHAS
- How they handle RAMS and site documents
- Whether old or failed sealant will be cut out, not overlaid
When it isn’t the sealant
A proper diagnosis includes knowing what sealant can’t do. We’ll tell you if the real problem is any of the following:
- Approving the work on behalf of building control
- Walls or floors that aren’t fire-resisting to begin with
- Deciding what a wall or floor needs, which belongs to the designer
If in doubt, call the office on 01277 525 020 or send photos by email and we will say what we think before you book.
What we seal
- Pipe penetrations
- Cable penetrations
- Linear gaps at wall heads
- Joints between fire-resisting walls and floors
- Service gaps in risers
- Small duct penetrations where the tested detail allows
What the job involves on each surface
Small ducts
Some fire-rated sealant details cover small ducts. Bigger ducts and fire-resisting ductwork are normally handled with other products, and we’ll say if that applies.
Risers and ceiling voids
Openings above suspended ceilings are easy to miss. We follow your schedule area by area and tell you about openings outside the list.
Nearby places to Five Oaks
What else we do in Five Oaks
Fire-rated sealing for Five Oaks buildings
For England, the fire stopping of penetrations is dealt with in Approved Document B. Its BS 476 references are being withdrawn from 2 September 2029, with BS EN 13501-2 classification taking over, subject to transitional arrangements. Our part stays the same: the specified product, installed to its tested detail. At about 35 miles from central London, Five Oaks is within reach of the capital. Business park offices in the commuter belt are refitted as tenants change, and each fit-out adds services through compartment walls.
In a school such as The Weald School, fire-rated sealant goes in around service penetrations where it is specified. Large healthcare estates like Horsham Hospital, 5 miles east of Five Oaks, change their services often, so penetration seals are worth checking after M&E work.
Five Oaks is about 5 miles west of Horsham, in West Sussex. We cover commercial sites throughout Five Oaks. Our West Sussex coverage takes in 373 places, from busy centres to rural villages. Our Brighton page has more on work in that area, about 20 miles away.
If you need fire stopping in RH14, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. Among the streets we cover are Horsham Road, Hayes Wood Road and Stane Street. Nearby places we also cover include The Haven (1 mile north-west), Billingshurst (2 miles south-west), Slinfold (2 miles north-east), Newpound Common (3 miles west) and Coneyhurst (3 miles south) for service penetrations. Further afield, our area takes in Crawley (12 miles north-east), Horsham (5 miles east), Worthing (15 miles south), Haywards Heath (15 miles east), Burgess Hill (15 miles south-east) and Broadfield (10 miles east).
Local landmarks in Five Oaks
For rail, the closest station is Billingshurst station, about 2.2 miles south of the centre. Other landmarks nearby include Christs Hospital School Museum (3.1 miles east) and Horsham Hospital (5 miles east).