West Sussex · England

Fire Rated Sealant in Gay Street

Intumescent and fire-rated sealant around gaps, frames and service penetrations for homes and businesses in Gay Street and across West Sussex. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.

  • Open holes round services passing through fire walls
  • Fire stopping disturbed by later work
  • Open gaps behind door architraves

Book fire rated sealant in Gay Street

Common questions in Gay Street

Is Gay Street in your area for fire rated sealant?

Yes. We work across London and the South East, and Gay Street is part of that. Just ring 0345 464 0079 or send us an email with a few details of the job, and we will send you a clear quote.

Do you cover smaller places like Gay Street?

Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.

Can you fill the gap behind a fire door frame?

Yes, if the gap is within the product’s tested range. Our work is the gap around the frame and we will tell you if we spot problems with the door.

Do I have to be there?

If the work is inside, we need someone to let us in. After that, you can carry on with your day.

Can you tell me how many minutes the seal will last?

Ratings and certification sit with the product’s test evidence and whoever specified the work. Our part is installing the specified product to its tested details and list the locations and products for you.

How much does fire rated sealant cost in Gay Street?

We do not publish prices, because the cost depends on the job: its size, the old material, access and the product needed. You’ll get a clear quote before any work starts.

Can new sealant go over the old?

No, and we never do. It can look neat for a few weeks, but the new layer lifts away from the old one. The old sealant has to come out completely.

I’m a tenant. Can you help?

Of course. Ask your landlord first, and we can send them the quote if that helps.

Fire rated sealant in Gay Street, done properly

Landlords, managing agents and facilities teams use us for the sealant items on a fire risk assessment. If you share the list, we can quote for the gaps that need fire-rated sealant. We work on linear gaps, flats & HMOs and service penetrations, and common reasons people get in touch are linear gaps at the head of walls and standard silicone or caulk in a fire-stopping gap.

For holiday lets, converted business premises or a community building near Gay Street, washroom and kitchen sealant and any fire-rated joints need the same attention as anywhere.

The work is guaranteed for twelve months. If something is not right with it in that time, tell us and we’ll put it right.

Location
Gay Street (RH20)
Wider area
West Sussex
Guarantee
A year, on every job
Price
Quoted before any work starts
Telephone
0345 464 0079
Updated
26 October 2026
Eleven members of the Mr Mastic team standing in front of branded white vans

For landlords and businesses

We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.

Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.

How we quote for fire rated sealant

Every job gets its own quote. This is what makes a difference:

  • How much there is to do
  • Any working-time requirements on site
  • Whether old sealant or filler has to be cut out
  • How many areas need sealing

Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs, along with when we can work on site. Ask us for a quote and we will go through it with you.

What to tell us for a quote

Photos by email are helpful but not essential. Try to tell us:

  • Access, such as stairs, a lift or height
  • If it’s domestic, commercial or a hotel
  • Where the property is
  • Any previous sealing or DIY work

We quote each job on its own. Simply ring 0345 464 0079 or drop us an email and describe the job.

What happens on the day

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. Somewhere as small as Gay Street, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. We go through the gaps on your list or survey and check each one’s size and substrate.
  2. We remove any old or unsuitable filler and clean the gap.
  3. We put in whatever backing or fill the product detail specifies.
  4. Fire-rated or intumescent sealant is applied to the right depth and tooled.
  5. Finally, we list where we worked and what we used, for your records.

How to prepare

  • Let us know about stairs, lifts or work at height
  • Let us know if you’ve seen damp or leaks
  • Move anything stored near the joints

How to get a quote

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.

Get a quick quote

Read more

How the job changes by surface

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 any work starts.

Masonry and concrete

Brick, block and concrete walls and floors are sealed with products tested in masonry. We clean out dust and debris before sealing so the seal has something sound to bond to.

Can I do it myself?

Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.

Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.

Honest limits

New sealant can’t fix everything, and we’d rather say so up front. Sealant will not put right:

  • Doors that aren’t fire doors in the first place
  • Sign-off of the building, which sits with building control or your assessor
  • Assessing a building’s fire safety

Not sure which it is? You can ring 0345 464 0079 or email us and we will tell you honestly.

Joints and surfaces we work on

  • Linear gaps
  • Pipe & cable gaps
  • Service penetrations
  • Flats & HMOs
  • Door frames
  • Plasterboard & masonry

Leave it or put it right?

Paying for fire stopping that has to be redone is a false economy. Work that does not follow the tested detail may have to come out again once someone inspects it. Where a wall is exposed, as many are in small places like Gay Street, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.

What it costs depends on how much there is to do, how hard the old material is to remove and how easy the joints are to reach. You’ll have a clear quote before any work starts, so you know where you stand.

Why Gay Street clients choose us

  • Any old sealant cut out fully, not covered over
  • Anti-fungal silicone where joints get wet
  • More than 20 years in sealant work
  • An ARBOMaster approved applicator

Take a look at how sealant jobs are priced and what customers say.

What fire rated sealant looks like in Gay Street

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 work to the specification you are given, installing the product to its tested details.

Letting a property close to Pulborough station? Then any gap left by new services in shared walls should be closed with a fire-rated product. Around Gay Street, as everywhere, fire rated sealant is only as good as the preparation behind it.

Gay Street is about 9 miles south-west of Horsham, in West Sussex. Jobs in Gay Street get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Gay Street is one of 371 towns and villages in West Sussex where we work for fire rated sealant. Our Crawley page covers work nearby.

Here we cover the RH20 postcode area for fire rated sealant. If you’re just outside Gay Street, we cover North Heath (1 mile north-west), Nutbourne (1 mile south), Broomershill (1 mile south-west), West Chiltington (2 miles south) and Codmore Hill (2 miles west). Within a short drive, we also cover Crawley (15 miles north-east), Horsham (9 miles north-east), Worthing (11 miles south), Burgess Hill (15 miles east), Littlehampton (12 miles south) and Shoreham-by-Sea (13 miles south-east).

Local landmarks in Gay Street

Gay Street’s nearest station is Pulborough station, roughly 2.7 miles south-west of the centre. For a walk, there’s The Mens.

Map of Gay Street © OpenStreetMap contributors
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job