Fire-rated sealing and fire stopping in Compton, West Sussex
Fire-rated and intumescent sealing of service penetrations and linear gaps throughout Compton and nearby, carried out by CSCS-carded applicators. CHAS accredited and fully insured.
- Expanding foam used as fire stopping
- Service penetrations left open after M&E works
- Openings found when ceilings come down for a refit
Fire stopping for businesses in Compton
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Compartments and services around Compton
Fire stopping of openings and penetrations in England falls under Approved Document B. From 2 September 2029, BS 476 references are being taken out of Approved Document B, leaving BS EN 13501-2 classification as the route, subject to the Government’s transitional arrangements. Either way, we install the specified product to its tested detail. At about 53 miles from central London, Compton is within reach of the capital. Office refits around the commuter belt bring new cabling through fire-resisting walls; the gaps need the specified seal.
At a healthcare site like Petersfield Community Hospital, 5.7 miles north of Compton, new services through compartment walls are a constant, and each needs the specified seal. In a school such as Compton and Up Marden CofE Primary School, fire-rated sealant goes in around service penetrations where it is specified. In a building such as The Parish Church of St Mary, any service penetration through a fire-resisting wall should be sealed to the specified detail.
Compton is about 5 miles east of Horndean, in West Sussex. Anywhere in PO18, it works the same way: details in, fixed quote out, then sealing and a 12-month guarantee. We work across 373 places in West Sussex, large and small. Portsmouth is covered too, some 11 miles away.
We take on service penetrations across the PO18 postcode area, whatever the building. For a building on Church Lane and School Lane or nearby, we can quote for service penetrations. We also cover East Marden (2 miles east), South Harting (3 miles north), East Harting (3 miles north-east), Chilgrove (4 miles east) and Elsted (4 miles north-east). Further afield, our area takes in Bognor Regis (13 miles south-east), Chichester (8 miles south-east), Selsey (14 miles south), Portfield (9 miles south-east), Yapton (15 miles south-east) and East Wittering (11 miles south).
Landmarks near Compton
In Compton, that means premises near The Coach And Horses Public House and the streets around them. The closest station to Compton is Rowlands Castle station, roughly 3.6 miles south-west of the centre. A little further out are Petersfield Community Hospital (5.7 miles north) and Clanfield Earthwork (4 miles west). The countryside around Compton includes Kingley Vale National Nature Reserve and Compton Down.
Fire stopping for commercial buildings in Compton
We are commercial sealant applicators, CHAS accredited and a Constructionline member, with CSCS-carded applicators on site. We don’t hold a 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. If you are dealing with open linear gaps along the top of fire-resisting walls and hidden openings found during inspections, we can help. A specialist sealant contractor works differently from a general builder: on jobs in Compton, preparation and product choice get the time they need.
Smaller places such as Compton still have buildings with fire-resisting walls and floors: schools, halls, care homes and commercial conversions. Any service penetration through those walls should be closed with the specified product, set out as its test evidence shows.
The 12-month guarantee is for workmanship rather than wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we spell out the cover before we begin.
- Place
- Compton (PO18)
- Wider area
- West Sussex
- Cover
- 12 months on our workmanship
- Quote
- Quoted before any work starts
- Call
- 01277 525 020
- Page updated
- 3 November 2026
Building owners, agents and FMs in Compton
Whether you are a managing agent, a property factor or an owner’s representative: send details, get a fixed quote, we seal, guaranteed. We can agree access arrangements and keyholder contacts beforehand.
Blocks and communal areas make up much of the work for housing associations and agents. Work can be phased so residents and staff keep access throughout, and each stage is agreed with your contact.
Why act early in Compton
An open or wrongly sealed service penetration lets fire and smoke reach the next compartment much sooner than the building was designed for. While the openings can be reached, sealing them is normally straightforward. Wait until ceilings close or areas are occupied and the same work becomes harder to reach. Around Compton, it’s better to renew all the failing joints at once, rather than one at a time. Photos of every joint help us quote for the whole job.
The work involved drives the cost: stripping out, preparation, sealing, access and phasing. Call for a quote.
Why choose Mastic Doctor in Compton
- One phone line for London, the South East and Scotland
- Products installed to the manufacturer’s instructions
- Fully insured
- Old sealant cut out, never sealed over
Read how commercial sealant jobs are priced or our accreditations.
On site: what to expect
Where the site stays busy, the work is phased so only one area is out of use at a time. Each area is protected, prepared and sealed, then handed back before the next one starts. If others near Compton 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.
- On site, each opening is checked against the tested detail it is meant to follow.
- 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.
- Openings that need a collar, wrap, batt or other product are flagged to you rather than filled with sealant.
Before we start on site
- Explain the parking and delivery arrangements
- Warn occupants and staff about the work
- Tell us your opening times and when work is allowed
Ask for a quote
Let us know the site, the scope and your timescale, and we’ll put a fixed quote together. The easiest way is to call the office on 01277 525 020 or send details through our quote form.
Read more
When something else is needed
A proper diagnosis includes knowing what sealant can’t do. We’ll tell you if the real problem is any of the following:
- Construction that lacks the fire resistance the seal relies on
- Large openings beyond what any sealant detail covers
- Reviewing a building’s overall fire safety
Not sure which it is? You can ring 01277 525 020 or email a schedule or drawings and we’ll tell you honestly.
Where we work in Compton
- Cable penetrations
- Linear gaps at wall heads
- Small duct penetrations where the tested detail allows
- Service gaps in risers
- Joints between fire-resisting walls and floors
- Pipe penetrations
Common questions from Compton clients
Is a hospital such as Petersfield Community Hospital somewhere you can work?
Yes, provided the work is planned with the site’s estates team. Each area is agreed with the ward or department and the estates team in advance.
How does the move away from BS 476 affect penetration seals in Compton?
Approved Document B loses its BS 476 references from 2 September 2029, and BS EN 13501-2 becomes the route, subject to transitional arrangements. Our part doesn’t change: the specified product, to its tested detail.
Can you fit around our working hours?
We are in the office from 8am until 5pm, Monday to Friday. Let us know your site hours and access windows, and the work will be planned around them.
How much does the work cost?
It depends on the job: quantities, access, the product and any phasing. Call for a fixed quote.
Can you work while the building is occupied?
Typically, yes. We phase the work so most of the building stays in use, with each area protected and signed.
Do you offer coloured sealant?
Often, yes. Sealants are made in a wide range of standard colours, and matching to RAL references or nearby finishes is commonly requested. We will confirm the colours available for the specified product.
Will you come and look before quoting?
It depends on the job. Simple work can often be priced from photos, while larger or less clear jobs get a site visit first.
Cost factors for service penetrations
A fixed quote reflects the actual work. It takes account of:
- Which sealant the job calls for
- Induction, permit and paperwork requirements
- Travel to remote or island sites
- The size and state of each joint
The price depends on the quantity of joints, how much old material needs removing and the access. Call for a fixed quote once you have the details.
What to include in your enquiry
Whether it’s one area or a whole building, these details speed things up:
- What the building is and how it’s used
- Where the site is, with the postcode
- Any specification or named product
- Drawings or a marked-up plan, if available
Send us photographs, drawings or a joint schedule and a fixed quote comes back to you. If the job needs a look first, we will arrange a site visit.
Should maintenance staff do it?
For a quick touch-up, site staff may be fine, but anything bigger is another matter: a specialist brings efficiency, a consistent finish and a 12-month guarantee.
Some joints are best left to specialists: for instance fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. Getting these wrong typically costs more in the end than doing them right.