West Sussex · England
Fire-rated sealant in Alfold Bars, West Sussex
Specialist fire rated sealant for Alfold Bars: careful preparation, the right product and tidy work. Call for a quick quote.
- Open joints along the top of partitions
- Open gaps behind door architraves
- Fire seals that have cracked with movement
Your questions about fire rated sealant in Alfold Bars
Is there a guarantee on fire rated sealant in Alfold Bars?
All our work, in Alfold Bars and everywhere else, comes with a 12-month guarantee. We are also fully insured and ARBOMaster approved.
Is Alfold Bars in your area for fire rated sealant?
Yes. We work across London and the South East, and Alfold Bars is part of that. Just call 0345 464 0079 or email us with a few details of the job.
How long will you be here?
That depends on the amount of work, but most jobs take a few hours for a handful of gaps, and longer for a whole building. We’ll tell you when we quote.
Will you leave a mess?
Tidy work is part of the job. We protect what’s around the joints, and we clear up when we are done.
Is intumescent sealant the same as fire-rated sealant?
An intumescent material expands when it’s heated. Many fire-rated sealants work this way, but not all and which one is used depends on the job.
Can you tell me which gaps need fire stopping?
No, we do not assess buildings. When your assessor or designer has set out what’s needed, we can quote for the fire-rated sealant items.
Is it OK to seal over old sealant?
No. New silicone won’t bond to old silicone, and it traps any mould or water underneath. It all has to come out first.
Where do you work from?
Mr Mastic is based in Crawley. Our applicators cover Alfold Bars, along with the rest of our area.
Fire rated sealant in Alfold Bars, done properly
Until it’s heated, intumescent sealant behaves like an ordinary sealant; then it swells to help close the gap. The right product depends on the gap size, the substrate and what passes through, so we work to the manufacturer’s details. We work on pipe & cable gaps, service penetrations and plasterboard & masonry, and people most often call us about cracked or shrunken fire-rated sealant and gaps flagged on a fire risk assessment.
If you have holiday lets, a converted barn used for business or a community building near Alfold Bars, washroom and kitchen sealant and any fire-rated joints need the same attention as anywhere.
Whatever the size of the job, you get the same 12-month guarantee in Alfold Bars and across West Sussex.
- Place
- Alfold Bars (RH14)
- Region
- West Sussex
- Guarantee
- One year on every job
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026

Places near Alfold Bars
More services for Alfold Bars
Honest limits
We will always be straight with you, so here’s what new sealant won’t do:
- Problems with the door itself rather than the gap around the frame
- A wall that is not a fire-resisting element to begin with
- Sign-off of the building, which sits with building control or your assessor
If in doubt, ring 0345 464 0079 or send us an email and we will say what we think before you book.
Joints and surfaces we work on
- Door frames
- Flats & HMOs
- Pipe & cable gaps
- Service penetrations
- Plasterboard & masonry
- Linear gaps
Why deal with it now?
Fire-rated sealants are less forgiving than ordinary ones. Depth, backing and surface preparation all affect how a seal performs, so we follow the maker’s details on every gap. Around Alfold Bars, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Leaving a failed joint normally makes the job bigger, not smaller, as water and mould keep getting in. If you are unsure, phone 0345 464 0079 or drop us an email for an honest opinion and a quote.
Why Alfold Bars clients choose us
- 4.9 on Google from 180+ five-star reviews
- Arbo and Everbuild products
- Homes, businesses and hotels
- More than 20 years in sealant work
Read our cost guide and our reviews.
How we quote for fire rated sealant
There’s no set price list, because jobs vary so much. What we look at:
- Whether the work is at height
- Whether there’s mould to deal with
- When we can work, for business premises
- How many areas need sealing
The cost reflects the work involved, not guesswork. That’s why we ask a few questions first.
What we need to know
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- Access, such as stairs, a lift or height
- Pictures of the joints, sent by email
- Where the job is, and your postcode
- What’s wrong with the joints now
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we will explain what’s involved and give you a clear price.
What the job involves on each surface
Plasterboard walls
In plasterboard walls, the condition of the board edge matters. Crumbling edges are cleaned back before the sealant goes in.
Flats and HMOs
Conversions generally leave a mix of old and new service holes. The gaps on your list are sealed with a fire-rated product and the locations noted.
What happens on the day
We bring everything the job needs with us, so there’s nothing for you to buy. After a quick look at the joints together, we protect the area and start. It normally takes a few hours for a handful of gaps, and longer for a whole building. Somewhere as small as Alfold Bars, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- First we work through your list or survey, measuring each gap and checking what it’s formed in.
- Old or unsuitable sealant is cut out and the gap cleaned.
- Backing or fill is fitted where the product’s tested detail calls for it.
- Fire-rated or intumescent sealant is applied to the right depth and tooled.
- We record the locations and products used for your records.
How to prepare
- Mention any sign-in or site rules at work premises
- Tell us about access, such as stairs, a lift or high-level joints
- Keep children and pets away from the work area
How to get a quote
For fire rated sealant in Alfold Bars, ring 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and you’ll get a clear quote before any work starts.
Read more
Workplaces and buildings in Alfold Bars
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 work to the specification you are given, installing the product to its tested details.
For buildings such as Church of St Nicholas, service openings in its walls need the right fire-rated sealant, as in any building.
Alfold Bars is about 9 miles west of Horsham, in West Sussex. From the centre of Alfold Bars to the outskirts, we cover fire rated sealant for every kind of property. Our West Sussex coverage runs to 371 places, and Alfold Bars is one of them. We also work in Crawley, around 14 miles away.
We cover every part of RH14 for fire rated sealant and the streets around it. Streets in the area include Pigbush Lane and Oakhurst Lane, all of which we cover. Nearby, we also carry out fire rated sealant in Alfold (1 mile north), Loxwood (1 mile south), Ifold (2 miles south-west), Plaistow (2 miles south-west) and Durfold Wood (3 miles west). Within a short drive, we also cover Crawley (14 miles east), Horsham (9 miles east), Broadfield (14 miles east), Storrington (12 miles south), Billingshurst (6 miles south-east) and Bewbush (13 miles east).
Near you in Alfold Bars
Typical jobs here are in homes near The Crown pub and Fir Tree Copse, among other places. The countryside around Alfold Bars includes Shillinglee Lake.
Work for landlords, hotels and businesses
For anyone letting property in or around Alfold Bars, jobs at different addresses can be quoted together. Send us the addresses and the work at each, and photos by email help.
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
What we’re called out for in Alfold Bars
A lot of fire stopping is out of sight: above ceilings, inside risers and behind panels. Out of view, damage sits unnoticed until someone inspects.
Any of these means the joints need attention:
- Fire stopping disturbed by later work
- Door frames with gaps between frame and wall
- Cracked or shrunken fire-rated sealant
- New service routes left unsealed after building work
For site and facilities teams at buildings such as Loxwood Primary School, fire-stopping around service openings should be restored whenever new services go in.
What to look for in a quote
- When the joint can take water or movement
- Whether all the old sealant comes out first
- How the colour is chosen
- How the surfaces are prepared before sealing
