West Sussex · England
Fire-rated sealant in Newpound Common, West Sussex
Our applicators work in Newpound Common on intumescent and fire-rated sealant around gaps, frames and service penetrations. Old material cut out, joints cleaned and sealed neatly.
- Fire stopping disturbed by later work
- Open joints along the top of partitions
- Open gaps behind door architraves
Fire rated sealant in Newpound Common
Filling a fire-stopping gap with standard silicone or caulk does not make it fire-rated. We cut out the wrong material and the gap is resealed with a product tested for that use. We work on plasterboard & masonry, pipe & cable gaps and door frames, and common reasons people get in touch are fire stopping disturbed by later work and gaps left after a refit or conversion.
Work in a small place like Newpound Common is planned ahead, journey included, so the job can fit around bookings, guests or opening times where possible.
Whatever the size of the job, you get the same one-year guarantee in Newpound Common and across West Sussex.

- Place
- Newpound Common (RH14)
- Wider area
- West Sussex
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
What the job involves on each surface
Plasterboard walls
Holes in plasterboard are often cut roughly for services. Where a hole is bigger than the sealant’s tested range, it needs another approach, and we’ll tell you.
Masonry and concrete
Holes through concrete and block are rarely neat. We measure the gap at its widest point against the product’s tested range.
The process
The work is kept neat and contained to the joints we’re treating, so you can carry on as normal. Expect the work to take a few hours for a handful of gaps, and longer for a whole building, and we explain the cure time before we leave. In a small place like Newpound Common, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- Before starting, we go through the specification or action list with you.
- Each gap is measured and its substrate and service noted.
- Any non-fire-rated filler is removed.
- The specified fire-rated sealant goes in over any backing its detail requires.
- Every location is recorded with the product used.
Before we arrive
- For business premises, tell us about site rules or sign-in
- Tell us if parking is tricky
- Where the joints are inside, avoid wetting them before we arrive
How to get a quote
There’s no standard price list. Instead, your job gets its own clear quote. To get started, call 0345 464 0079 or drop us an email.
Read more
When to call us in Newpound Common
Gaps also open up as buildings move: cracked or debonded sealant leaves an open route through the wall. Damage from cleaning, knocks and maintenance adds to it.
People generally contact us when they notice one of these:
- Gaps flagged on a fire risk assessment
- Seals cut through by electricians, plumbers or data installers
- Fire seals that have cracked with movement
- Ordinary sealant used where a fire-rated product was needed
Managing a site like Wisborough Green Primary School? Then fire-stopping around service openings should be restored whenever new services go in.
Questions to ask before booking
- The length of the guarantee
- What the quote includes, VAT included or not
- What insurance they hold
- Whether you can choose the colour
Places near Newpound Common
What else we do in Newpound Common
When it isn’t the sealant
We’d rather tell you now than do work that will not last, so here’s what sealant cannot put right:
- Certifying a building or signing off its fire safety
- Fire doors that need new seals, closers or hardware
- Openings too large for sealant, which need batts, boards or another system
If you are not sure, just phone 0345 464 0079 or email us and we will give you a straight answer.
What we seal
- Service penetrations
- Linear gaps
- Flats & HMOs
- Plasterboard & masonry
- Pipe & cable gaps
- Door frames
Keeping the joints in good condition
Aftercare is simple, and it makes a real difference:
- Ask every contractor to reseal any fire stopping they disturb
- Keep the record of products and locations with your fire safety documents
- Check risers, ceiling voids and cupboards during building checks
- Flag any open gap you spot round a pipe or cable
Keep the record we give you with the building’s fire safety documents. It saves time at the next inspection or assessment.
Leave a fire-stopping gap open and smoke can move through the building much more easily. Closing it is generally a straightforward job.
DIY versus a professional finish
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
Common questions in Newpound Common
Do you cover Newpound Common for fire rated sealant?
Yes, Newpound Common is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or drop us an email with a few details of the job, and we’ll give you a clear price.
Is Newpound Common within the area you cover?
Yes, Newpound Common is covered. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Will we have a record of what was sealed?
Yes. Every gap we seal is listed with the product used.
Is the work guaranteed?
Yes: twelve months. If anything isn’t right with the work within the year, let us know and we will sort it.
Does someone need to be in?
We need access to the joints, so we’ll agree that with you when we book. Indoors, that normally means someone at home.
How long will you be here?
Most jobs take from a few hours to a few days, depending on the number of gaps and the access, including preparation and clearing up. Your quote will say how long we expect yours to take.
Is intumescent sealant the same as fire-rated sealant?
Intumescent means it swells when heated, helping close the gap. Intumescent sealants are one kind of fire-rated sealant; the right one depends on the gap and what passes through it.
Are you insured?
Yes. Mr Mastic is fully insured, with over 20 years’ experience in sealant work.
Why deal with it now?
An unsealed gap lets smoke and fire get round a wall that was built to hold them back. A proper seal lets the wall do its job again, and the work involved is often modest. In a small place like Newpound Common, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Doing several joints on one visit normally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.
Why us?
- Homes, businesses and hotels
- Anti-fungal silicone where joints get wet
- 20+ years of sealant experience
- Neat joints and a tidy finish
Take a look at how sealant jobs are priced or customer reviews.
Commercial buildings in Newpound Common
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, and gaps around services are often picked up there. We apply fire-rated sealant to the assessor’s or designer’s specification and the product’s tested details.
For buildings such as The Parish Church of St Peter Ad Vincula, gaps around pipes and cables are worth checking after any building work there. For landlords with property near Billingshurst station, fire-rated sealant around pipes and cables through walls and floors needs making good whenever new services go through.
Newpound Common is about 8 miles west of Horsham, in West Sussex. Every kind of property in Newpound Common is covered for fire rated sealant, old or new, large or small. The work is guaranteed for a year. Across West Sussex, we cover 371 places, Newpound Common among them. We also work in Crawley, about 14 miles from Newpound Common.
Jobs for fire rated sealant in RH14 works the same way as everywhere else we cover. If you need fire rated sealant at a property on Newpound and Newpound Lane or a nearby road, we can help. Other places close to Newpound Common include Billingshurst (2 miles south-east), Five Oaks (3 miles east), The Haven (3 miles north-east), Coneyhurst (3 miles south-east) and Tisman's Common (4 miles north). Further out, we also cover Crawley (14 miles north-east), Horsham (8 miles east), Worthing (15 miles south), Littlehampton (15 miles south), Rustington (15 miles south) and Broadfield (13 miles east).
Landmarks near Newpound Common
Around Newpound Common, our work takes us to homes and buildings near The Cricketers Arms Public House and The Weald School. The nearest railway station is Billingshurst station, roughly 2.1 miles south-east. Not far away are The Mens.
