West Sussex · England
Fire-rated sealant in Warminghurst, West Sussex
Our applicators work in Warminghurst on intumescent and fire-rated sealant around gaps, frames and service penetrations. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- Linear gaps at the head of walls
- New service routes left unsealed after building work
- Damaged fire sealant left by other trades
Can I do it myself?
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions.
Fire rated sealant for homes and businesses in Warminghurst
Intumescent sealant looks much like any other sealant until it gets hot; then it swells to help close the gap. The right product depends on the gap size, the substrate and what passes through. If you’re dealing with ordinary sealant used where a fire-rated product was needed and open joints along the top of partitions, we can put it right.
In a village or hamlet like Warminghurst, commercial work is more likely to be a pub, a farm shop, holiday lets or a village hall than an office block. They all have washrooms, kitchens and service openings that need the right sealant.
Each job carries a 12-month guarantee.
- Place
- Warminghurst (RH20)
- Region
- West Sussex
- Cover
- A year, on every job
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026

Fire rated sealant in Warminghurst: local notes
Workplaces and the common parts of blocks of flats in England need a fire risk assessment under the Regulatory Reform (Fire Safety) Order 2005, 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.
If you look after a church, hall or community building such as Church of the Holy Sepulchre, service openings in its walls need the right fire-rated sealant, as in any building. For landlords with property near Pulborough station, new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant.
Warminghurst is about 8 miles north of Worthing, in West Sussex. Every kind of property in Warminghurst can book us for fire rated sealant. Every job comes with our one-year guarantee. Across West Sussex, we cover 371 places, Warminghurst among them. Brighton is on our list too, about 14 miles from Warminghurst.
Jobs for fire rated sealant in RH20 is quoted and booked the same way as anywhere else. Neighbouring places we cover for fire rated sealant include Thakeham (1 mile north-west), Abingworth (1 mile west), Goose Green (1 mile north), Heath Common (1 mile south-west) and West Chiltington (2 miles north-west). Within a short drive, we also cover Crawley (15 miles north-east), Horsham (10 miles north-east), Worthing (8 miles south), Haywards Heath (14 miles east), Burgess Hill (12 miles east) and Littlehampton (10 miles south-west).
What’s near Warminghurst
In Warminghurst, that means homes and buildings near Rydon Community College, among other places. The closest station to Warminghurst is Pulborough station, about 4.7 miles west of the centre. Other landmarks nearby include The Storrington And District Museum (2.2 miles south-west). Green spaces nearby include Chanctonbury Hill and Knepp Wildland.
What affects the cost of fire rated sealant
The quote reflects the job in front of us. We look at:
- Mould in or behind the old joints
- How many areas need sealing
- Which sealant suits the joint
- The old material and how stubborn it is
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed. Call for a quick quote and we’ll go through it with you.
What to tell us for a quote
Photos by email are helpful but not essential. Please mention:
- How many joints, rooms or windows are involved
- Whether it’s a home or a business
- A few pictures by email, if you can
- What the problem is, such as mould, gaps, leaks or cracking
We do not publish a price list, as no two jobs are quite the same. Instead, we give you a clear price for your job. To arrange one, ring 0345 464 0079 or drop us an email.
Also near Warminghurst
Also in Warminghurst
Why act early in Warminghurst
Sealant isn’t the fix for every opening. Big openings, bundles of cables and plastic pipes may need batts, collars or wraps instead. If a gap isn’t suitable for sealant, we’ll tell you. Where a wall is exposed, as many are in small places like Warminghurst, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please call 0345 464 0079 or drop us an email and we’ll talk you through it.
Why us?
- Tidy, careful work
- Sanitary silicone with an anti-fungal additive in wet areas
- Any old sealant cut out fully, not covered over
- Domestic, commercial and hotel work
Take a look at how sealant jobs are priced and our reviews.
Signs you need fire rated sealant in Warminghurst
In some buildings the gap was filled with the wrong thing in the first place: ordinary expanding foam, standard silicone or decorators’ caulk where a fire-rated seal was needed. It may look fine, but it isn’t a fire-rated seal.
If you can see any of these, it’s time to have the joints looked at:
- Cracked or shrunken fire-rated sealant
- Unsealed gaps around fire door frames
- Fire stopping disturbed by later work
- Gaps filled with a product that is not fire-rated
Managing a site like Ashington CofE Primary School? Then gaps opened by contractors for new cabling are a common finding in schools and offices.
Before booking anyone
- Whether they’re fully insured
- Whether you can choose the colour
- Is the old sealant removed completely?
- How long the guarantee is
Surface by surface
Plasterboard walls
Many fire-resisting walls in flats, offices and conversions are plasterboard. We use a product tested in that kind of wall for each gap size.
Flats and HMOs
In occupied buildings, we plan the order of work with you. Access to flats and common areas is agreed in advance to keep disruption down.
Common questions in Warminghurst
Do you cover smaller places like Warminghurst?
Yes, Warminghurst 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.
Can you do fire rated sealant in Warminghurst?
Yes. We work across London and the South East, and Warminghurst is part of that. Just phone 0345 464 0079 or send us an email with a few details of the job, and we will send you a clear quote.
Do the sealants smell?
It depends on the product. Some smell for a while, some hardly at all.
Are you insured?
Yes. Mr Mastic is fully insured, and we’ve been doing sealant work for more than 20 years.
Will the old sealant be removed?
Yes, always, and completely. New sealant won’t bond properly to old, so the joint is cleaned back first.
Do you take on fire stopping in schools and offices?
Yes. Occupied flats, HMOs, offices and schools are all fine. Out-of-hours work can be arranged where it’s needed.
Where is Mr Mastic based?
We work from Crawley. We cover Warminghurst and the rest of West Sussex.
Does someone need to be in?
Access is agreed with you when the job is booked. For inside work, that normally means someone being in.
What happens on the day
Our applicators work methodically: protect, prepare, seal, tidy. For most jobs that takes from a few hours to a few days, depending on the number of gaps and the access. In a small place like Warminghurst, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We plan the order of work and access, floor by floor or flat by flat.
- We take out any damaged or unsuitable sealant.
- Dust and loose debris are cleaned from each gap.
- We apply and tool the sealant to the product’s tested detail.
- We record what was done and flag anything that needs a different system.
Getting ready for the visit
- Let us know about parking restrictions
- Clear items away from the joints we’re working on
- Let us know about earlier repairs to the joints
How to get a quote
Every job is quoted individually, so the first step is telling us about yours. Just ring 0345 464 0079 or drop us an email with the details, and pictures are welcome.
Read more
Aftercare tips
A little care helps the new joints last. Our advice:
- Report cracked or damaged seals as soon as you notice them
- Tell trades working in the building that fire seals must be put back
- Keep the record of products and locations with your fire safety documents
- Photograph sealed gaps before they’re covered up
Keep the record we give you with the building’s fire safety documents. It helps whoever checks the building next.
An open gap isn’t only a fire issue: noise, draughts and even pests can come through too. Sealing them early helps on every front.
