Fire stopping in Smallfield
Fire-rated and intumescent sealing of service penetrations and linear gaps across Smallfield, carried out by CSCS-carded applicators. Fully insured and CHAS accredited.
- Penetration schedules that need working through
- Improvised or mixed-product fire seals
- Openings left by services added after handover
Need fire stopping in Smallfield?
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
About our fire stopping in Smallfield
Where pipes, cables and other services cross a compartment wall or floor, the opening around them has to be closed so fire and smoke can’t move between compartments. Our job is fitting fire-rated and intumescent sealant at those service penetrations, and along linear gaps, where it is the specified product. We work to the product’s tested detail for every seal, not a rule of thumb. If you have fire-stopping items raised at inspection or handover and openings found when ceilings come down for a refit, we can help, whatever the surface. Whether you call it commercial sealant work, mastic application or joint sealing, the work in Smallfield is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.
Converted and extended buildings around places like Smallfield can mix old and new construction, so it’s worth confirming the wall or floor type before choosing the seal. We match the product to the substrate and service, and say so if a collar, wrap or batt is the specified item.
A 12-month guarantee applies to all our work in Surrey. Should something we installed fail, ring 01277 525 020 or use the quote form and we’ll come back to it.
- Location
- Smallfield (RH6)
- Region
- Surrey
- Guarantee
- 12 months on our workmanship
- Price
- A fixed quote before we start
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
FAQs: Smallfield
How does the removal of BS 476 from Approved Document B affect fire-rated sealing in Smallfield?
References to BS 476 classes are being removed from Approved Document B from 2 September 2029, after which BS EN 13501-2 classification is the route, subject to transitional arrangements. The designer or fire engineer sets the specification, and we install the product to the manufacturer’s tested detail.
Is Smallfield too small for you to travel to?
Not at all: smaller places are covered as well as towns. Our area covers London and the South East counties. Good photographs up front let us bring everything on the first visit.
What happens if old sealant might contain asbestos?
Managing asbestos is the dutyholder’s responsibility, so we’ll ask for the register before work on an older building. Work pauses if suspect material is found, until it has been tested.
How long will the new sealant last?
It depends on movement, UV and weather, cleaning, traffic and the product. Treat them as maintenance items and inspect them regularly.
Do you hold CHAS accreditation?
Yes. Mastic Doctor is CHAS accredited and a Constructionline member, which helps with supplier vetting.
Can you follow the specification on our project?
Yes. Send it with your enquiry, and we’ll price the work to it.
Do you guarantee your work?
Yes, for 12 months. If our installation fails in that time, we return and fix it.
Nearby places to Smallfield
Also in Smallfield
Work for main contractors and building owners
CHAS accredited and a Constructionline member, we make supplier vetting simple. We are fully insured, and our insurance certificate can go with the quote.
Facilities managers want contractors who arrive with the paperwork sorted. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we’ll confirm them with the quote.
Doing it in-house
Some joints are best left to specialists: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. Getting these wrong typically costs more in the end than doing them right.
Using site staff can make sense for a small touch-up, but anything bigger is another matter: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.
When something else is needed
We seal joints; we don’t mend everything behind them. On its own, sealant can’t deal with:
- Gaps in walls that were never built as compartment walls
- Designing or specifying fire stopping, which sits with the designer or fire engineer
- Fire risk assessments, a job for a competent assessor
If you’re not sure, just ring 01277 525 020 or use the quote form and we will give you a straight answer before you book.
Surfaces we seal
- Small duct penetrations where the tested detail allows
- Service gaps in risers
- Cable penetrations
- Linear gaps at wall heads
- Joints between fire-resisting walls and floors
- Pipe penetrations
Quoting for work in Smallfield
Each job is priced on its own details. The main factors are:
- The size and state of each joint
- Induction, permit and paperwork requirements
- The product specified
- How accessible the joints are
Pricing service penetrations depends on quantities, condition and access, and any specification that applies. Call for a quote.
Before you send an enquiry
For an accurate fixed quote, we need a clear picture of the site. Useful things to include:
- When you need the work done
- Approximate linear metres or a joint schedule
- Whether the building will be occupied during the work
- Asbestos survey details if the building is older
Need a figure for a tender or a budget? We’ll quote against your scope and drawings that you can work with. If you have questions first, ring 01277 525 020 or send photos by email.
Fire-rated sealing for Smallfield buildings
There are several hotels within about 2 miles of Smallfield. A hotel refit often runs new services through compartment walls between bedrooms and corridors, and each opening needs the specified seal. For England, the fire stopping of penetrations is dealt with in Approved Document B. References to the older BS 476 classes are being removed from it from 2 September 2029, after which the European classification, BS EN 13501-2, is the route, subject to transitional arrangements. Our part stays the same: the specified product, installed to its tested detail.
In a hotel such as Langshott Manor Hotel, 1.5 miles to the west of Smallfield, new pipework or cabling through bedroom and corridor walls needs sealing with the specified product. For a hospital such as Spire Gatwick Park Hospital (Private), 3 miles west of Smallfield, penetration sealing is normally phased ward by ward, with infection-control rules agreed first.
Smallfield is about 2 miles east of Horley, in Surrey. We cover Smallfield, with the same fixed quotes and 12-month guarantee as everywhere else. Smallfield is one of 379 places in Surrey on our list. For work in that direction, see our London page, about 23 miles away.
Work on service penetrations is covered throughout RH6. Buildings on Churchill Road, Orchard Road and Tudor Close are within our area. If your building is just outside Smallfield, we cover Outwood (1 mile north), Burstow (1 mile south-west), Keeper's Corner (1 mile south), Fernhill (2 miles south-west) and Shipley Bridge (2 miles south-west). Bigger towns within reach include Epsom (13 miles north-west), Redhill (5 miles north-west), Ewell (14 miles north-west), Reigate (6 miles north-west), Caterham (8 miles north) and Dorking (10 miles north-west).
Around Smallfield
We work on buildings around Oakwood School and Plough and Furrow pub. For rail, the closest station is Horley station, roughly 2 miles west. Nearby you’ll also find Bletchingley Castle (4.5 miles north) and Effingham Park Motor Museum (2.5 miles south-east). Not far away are Hedgecourt Lake.
What we are called out for in Smallfield
Some seals fail because the wrong product went in: expanding foam or a general-purpose sealant pushed into a gap to tidy it. It may look closed, but it has no tested fire performance in that position, so it has to come out.
These are often picked up first by site or facilities staff:
- Penetration schedules that need working through
- Open linear gaps along the top of fire-resisting walls
- Non-fire-rated filler around services
- Openings left by services added after handover
Holiday works at schools like Burstow Primary School often leave service openings to seal before pupils return.
What your quote should include
- Their public liability cover
- What the guarantee covers, and for how long
- The named product and why it was chosen
- Can the work be phased to keep areas open?
Our process
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 the job ends with a walk round and sign-off. Work in places the size of Smallfield is planned as a single visit where we can. Clear photos and measurements help us bring the right products.
- We read the specification, drawings or penetration schedule you send and raise any questions before we price.
- On site, each opening is checked against the tested detail it is meant to follow.
- Unsuitable fillers and loose debris are taken out of each opening.
- 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.
Getting the site ready
- Share your working hours and any access restrictions
- Let us know about inductions and permits
- Have the specification and drawings to hand
Ask for a quote
A good quote starts with a clear picture: what’s there, how much of it, how we reach it and what’s specified. Share whatever details you have and we’ll fill any gaps with a visit.