West Sussex · England
Broadfield Fire Rated Sealant
Professional fire rated sealant in and around Broadfield, with old sealant always removed completely and a 12-month guarantee.
- Fire stopping disturbed by later work
- Fire seals that have cracked with movement
- Gaps left after a refit or conversion
How we quote for fire rated sealant
The quote reflects the job in front of us. We take into account:
- How much old sealant there is and how hard it is to remove
- The number and length of the joints
- When we can work, for business premises
- How easy the joints are to reach
The cost reflects the work involved, not guesswork. That’s why we ask a few questions first and agree the price before starting.
Helping us quote
When you contact us, it’s useful to know:
- Whether it’s a home or a business
- A few pictures by email, if you can
- How many joints, rooms or windows are involved
- The address or postcode of the job
Call for a quick quote, or email us if that’s easier. Tell us about the joints that need doing and we’ll explain what’s involved and give you a clear price.
About our fire rated sealant in Broadfield
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 have open gaps behind door architraves and old fire sealant that has split or come away, we can help, on plasterboard & masonry, linear gaps and service penetrations alike.
For a pub, café, guest house or shop in or near Broadfield, the washrooms and kitchen need the same attention as a big site, and fire-rated sealant around service openings should be restored after new pipes or cables go through.
Every job is covered by a 12-month guarantee, wherever you are in West Sussex.
- Place
- Broadfield (RH11, RH10)
- Wider area
- West Sussex
- Cover
- One year on every job
- Quote
- A clear price before we start
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026

Landlords, agents and businesses in Broadfield
We also work for property managers and facilities teams in Broadfield and across West Sussex. Several sites can be quoted together, and we’re fully insured for the work.
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Also near Broadfield
Other services in Broadfield
FAQs for Broadfield
I let a flat near Crawley station. Can you help?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before any work starts.
Can you do fire rated sealant in Broadfield?
Yes, Broadfield is within the area we cover. We work across London and the South East. Just call 0345 464 0079 or email us with a few details of the job, and we will send you a clear quote.
What’s the difference between intumescent and fire-rated sealant?
An intumescent material expands when it’s heated. Many fire-rated sealants work this way, but not all, and the choice depends on the gap.
What does fire rated sealant cost?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
Are you insured?
Yes. Mr Mastic is fully insured, and we’ve been doing sealant work for more than 20 years.
How long does fire rated sealant take?
Typically it takes from a few hours to a few days, depending on the number of gaps and the access. Bigger jobs take longer.
Is it messy?
Tidy work is part of the job. We protect what’s around the joints.
Do you take on fire stopping in schools and offices?
Yes. We work in flats, HMOs, schools, offices and other commercial buildings, including occupied ones. The order of work and access are planned with you.
Should I try it myself first?
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
Fire rated sealant around Broadfield
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 are given, installing the product to its tested details. Broadfield is part of Crawley, one of the post-war new towns. Crawley was planned with its own industrial and business areas, so there are offices, units and workplaces not far from home. Their washrooms, kitchens and fire-rated joints need the same upkeep as anywhere.
Community buildings like Christ The Lord are part of the picture too: service openings in its walls need the right fire-rated sealant, as in any building. For site and facilities teams at buildings such as Seymour Primary School, gaps opened by contractors for new cabling are a common finding in schools and offices. For landlords with property near Crawley station, any gap left by new services in shared walls should be closed with a fire-rated product.
Broadfield is about 1 mile south-west of Crawley, in West Sussex. Our applicators cover fire rated sealant for householders, landlords and businesses in Broadfield and nearby. Broadfield is one of 371 places in West Sussex where we work.
Postcode districts we cover here for fire rated sealant: RH11 and RH10. Whether your property is on Terry Road, Hobbs Road and Clark Road or anywhere close by, we can help. We also cover the places around Broadfield: Kilnwood Vale (2 miles west), Colgate (2 miles south-west), Faygate (2 miles west), Handcross (3 miles south) and Plummers Plain (4 miles south). We also work in nearby towns such as Horsham (5 miles west), Haywards Heath (8 miles south-east), Burgess Hill (10 miles south), East Grinstead (9 miles east), Billingshurst (12 miles south-west) and Roffey (4 miles west).
Local landmarks in Broadfield
We work in homes and buildings around Cottesmore School, Target Hill Park and The New Moon pub and the streets around them. The closest station to Broadfield is Crawley station, roughly 1.4 miles north-east. A little further out are Crawley Hospital (1.5 miles north) and Crawley Museum (1.7 miles north-east). The countryside around Broadfield includes Tilgate Lake.
Surface by surface
Service penetrations
New gaps tend to show up where services have been added. Old or unsuitable filler comes out before the right sealant goes in with backing where the detail needs it.
Flats and HMOs
In occupied buildings, we plan the order of work with you. We agree access to each flat and the common parts before we start to keep disruption down.
What happens if it’s left?
Leaving a gap until a refurbishment comes round can mean years with it open. On its own, sealing it now is a small job and needn’t wait for anything else. Homes in smaller places like Broadfield 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.
Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. You will know the price before we begin.
Why us?
- A 12-month guarantee on all work
- Sanitary silicone with an anti-fungal additive in wet areas
- Domestic, commercial and hotel work
- We never seal over old sealant
Read our cost guide or customer reviews.
How the visit works
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. For most jobs that takes a few hours for a handful of gaps, and longer for a whole building and we leave things clean and tidy. Parking around Broadfield is generally easier than in a town centre, but mention any lanes, gates or long drives. For outside work, side access and the height of the joints help us plan.
- Before starting, we go through the specification or action list with you.
- We measure every gap and note what it’s in and what passes through.
- Unsuitable material such as ordinary foam or silicone is cut out and the faces cleaned.
- The specified fire-rated sealant goes in over any backing its detail requires.
- Every location is recorded with the product used for your records.
How to prepare
- Keep children and pets away from the work area
- Mention any parking rules near the property
- Let us know about stairs, lifts or work at height
Ask for a quote
Getting a quote is simple: let us know the job and the location, and roughly how big it is. A few photos by email make the job easier to understand, and we’ll take it from there.
Advice
Looking after it afterwards
To keep the joints looking good and working properly:
- Tell trades working in the building that fire seals must be put back
- Ask which product was used before you paint
- Plan fire stopping into any work that goes through walls or floors
- Get damaged fire seals looked at promptly
Avoid covering a sealed gap with anything that is not part of the tested detail. If it needs repair, use the same type of product. Ask us if you are not sure which product was used.
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.
