Hertfordshire · England
Fire-rated sealant in Foxholes, Hertfordshire
Intumescent and fire-rated sealant around gaps, frames and service penetrations for homeowners, landlords and businesses in Foxholes. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Gaps around pipes and cables through fire-resisting walls
- Standard silicone or caulk in a fire-stopping gap
- Linear gaps at the head of walls
About our fire rated sealant in Foxholes
Deciding which gaps need fire stopping is not our role; that comes from your fire risk assessor, designer or building control. Our part is applying the specified sealant carefully, to the right depth and with the right backing. We work on pipe & cable gaps, linear gaps and plasterboard & masonry, and common reasons people get in touch are gaps flagged on a fire risk assessment and damaged fire sealant left by other trades.
For a pub, café, guest house or shop in or near Foxholes, its washrooms and kitchen need the same sealant care as any big building.
Every job is covered by our 12-month guarantee, wherever you are in Hertfordshire.
- Where
- Foxholes (SG13)
- Region
- Hertfordshire
- Guarantee
- One year on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
DIY sealant or a professional job?
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
Keeping the joints in good condition
To keep the joints looking good and working properly:
- Photograph sealed gaps before they’re covered up
- Flag any open gap you spot round a pipe or cable
- File the fire-stopping record where your assessor can find it
- Ask which product was used before you paint
Keep the record we give you with the building’s fire safety documents. It helps whoever checks the building next.
Leave a fire-stopping gap open and smoke can move through the building much more easily. Sealing it early is a simple step to take.
Common problems we fix in Foxholes
Door frames are a common weak spot. The gap between the frame and the wall is hidden behind the architrave, so it’s easy to leave unsealed when doors are changed.
These are the problems we’re asked about most:
- Fire seals that have cracked with movement
- Sealant items on a fire risk assessment action list
- Gaps left after a refit or conversion
- Standard silicone or caulk in a fire-stopping gap
Schools such as Wheatcroft Primary School are buildings too, and service openings in fire-resisting walls need checking after any refurbishment.
Comparing quotes
- What the cure time is
- How much experience the applicator has
- What happens if they find a problem under the old sealant
- Whether they’re fully insured
How the visit works
You do not need to clear the whole room or building before we come, only the area right around the joints. We protect the rest, and the work takes a few hours for a handful of gaps, and longer for a whole building for a typical job. In a smaller place like Foxholes, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- We go through the gaps on your list or survey and check each one’s size and substrate.
- Anything that is not fit for the job comes out, and the gap is cleaned.
- We put in whatever backing or fill the product detail specifies.
- Fire-rated or intumescent sealant is applied to the right depth and tooled.
- Finally, we list where we worked and what we used, for your records.
Before we arrive
- Mention any tricky access
- Move anything stored near the joints
- Tell us about any previous sealing or DIY attempts
Get a quote
Want a quote for fire rated sealant? Please call 0345 464 0079 or send us an email and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
Advice
Why deal with it now?
An open gap in a fire-resisting wall is a route for smoke and fire. Sealing it properly restores what the wall was there to do, and the sealing itself is often a contained piece of work. Homes in smaller places like Foxholes can face more weather, and failed outside joints let damp into walls. Inside, a split seal lets water into floors and panels just as it would anywhere.
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.
Why choose Mr Mastic in Foxholes
- Anti-fungal silicone where joints get wet
- An ARBOMaster approved applicator
- One-year guarantee on every job
- We’re fully insured
What affects the cost of fire rated sealant
Jobs vary more than people expect. The main factors:
- Whether the work is at height
- The old material and how stubborn it is
- When we can work, for business premises
- The type of sealant required
No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference.
What we need to know
To help us quote quickly, let us know:
- Access, such as stairs, a lift or height
- How many joints, rooms or windows are involved
- Whether it’s a home or a business
- What’s wrong with the joints now
If you are in Foxholes and need fire rated sealant, phone 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and you will get a clear quote before we start.
What fire rated sealant looks like in Foxholes
In England, the Regulatory Reform (Fire Safety) Order 2005 requires a fire risk assessment for workplaces and for the common parts of blocks of flats, which is often where open fire-stopping gaps are first noticed. We work to the specification you’re given, installing the product to its tested details. There are hotels and other places to stay in and around Foxholes. Hotel work can be planned room by room, with out-of-hours working where needed.
If you look after a church, hall or community building such as Church of the Holy Trinity, gaps around pipes and cables are worth checking after any building work there. Letting a property close to Hertford East station? Then new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant.
Foxholes is about 1 mile east of Hertford, in Hertfordshire. If you need fire rated sealant in Foxholes, it’s easy to get a quote: please phone 0345 464 0079 or drop us an email. We are based in Crawley and cover Hertfordshire. We cover 381 towns and villages across Hertfordshire, large and small. For nearby work, see our London page, about 20 miles away.
All of SG13 is covered for fire rated sealant, from the main roads to the quietest streets. Fire rated sealant is available to properties on Ware Road, London Road and Fairfax Road and the roads around them. Neighbouring places we cover for fire rated sealant include Rush Green (1 mile north-east), Hertford Heath (1 mile south-east), Hertford (1 mile west), Little Amwell (1 mile south-east) and Horns Mill (1 mile south-west). Further out, we also cover Stevenage (10 miles north-west), St Albans (12 miles west), Bishop's Stortford (10 miles north-east), Welwyn Garden City (6 miles west), Harpenden (13 miles west) and Hitchin (14 miles north-west).
Around Foxholes
We work in homes and buildings around Simon Balle All-Through School, The Saracens Head Public House and Hertford Regional College. Foxholes’s nearest station is Hertford East station, about 0.8 miles north-west. A little further out are Hertford County Hospital (1.5 miles west) and Mcmullen & Sons Brewery Museum (1.2 miles west). Open spaces near Foxholes include King's Meads.
Common questions in Foxholes
Do you work for landlords with property near Hertford East station?
Yes. We work for landlords and agents as well as householders, and several properties can go on one quote. Just call 0345 464 0079 or send us an email with the address and what needs doing, and we’ll give you a clear quote.
Do you work in hotels near Foxholes?
Yes, we work for hotels as well as homes and businesses. Rooms can be done a few at a time, so the building stays open.
Do you work in Foxholes?
Yes, we do. Foxholes is part of the area we cover.
Are you insured?
Yes. We’re fully insured.
Can I use normal mastic around a pipe through a fire wall?
No. It might close the gap, but it isn’t a fire-rated seal. A tested fire-rated product is needed.
What should I tell you?
Tell us what needs doing and where, with pictures by email if possible. We’ll ask anything else we need to know.
Can you quote for more than one area?
Yes. Just list everything you need and you’ll get one quote.
Do you hold any approvals?
Yes. We are an ARBOMaster approved applicator, which is run for the Arbo sealant brand.
Also near Foxholes
What else we do in Foxholes
How the job changes by surface
Flats and HMOs
Flats and HMOs rely on fire separation between homes and the common parts. We seal the gaps your assessor has identified, flat by flat if needed.
Plasterboard walls
Holes in plasterboard are often cut roughly for services. Gaps that are too big for sealant alone need a different detail and we will flag it.