East Sussex · England
Milton Street Fire Rated Sealant
Specialist fire rated sealant for Milton Street: careful preparation, the right product and tidy work. Call for a quick quote.
- Open joints along the top of partitions
- Gaps around pipes and cables through fire-resisting walls
- Joints picked up in a fire-stopping survey
How we quote for fire rated sealant
The price is agreed before any work begins. It takes into account:
- When we can work, for business premises
- The type of sealant required
- How many areas need sealing
- The old material and how stubborn it is
Leaving a failed joint generally makes the job bigger, not smaller, because water and mould keep working on it. If you’re not sure whether it needs doing, phone 0345 464 0079 or send us an email and we will give you an honest view and a quote.
What we need to know
Photos help, but a description is a good start. Please mention:
- Whether it’s a home or a business
- How many joints, rooms or windows are involved
- Where the job is, and your postcode
- A few pictures by email, if you can
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and email pictures if that’s easy.
About our fire rated sealant in Milton Street
A fire seal relies on being installed the way it was tested: correct depth, correct backing and a product suited to the surfaces. That detail is what we take care over, gap by gap. Common call-outs are for new service routes left unsealed after building work and door frames with gaps between frame and wall, across service penetrations, linear gaps and flats & HMOs.
Somewhere as small as Milton Street, commercial jobs tend to be pubs, holiday lets, farm buildings or halls rather than offices. Each still needs sound sealant in its washrooms and kitchens, and fire-rated joints where services pass through walls.
We stand behind the work with a 12-month guarantee.

- Where
- Milton Street (BN26)
- Region
- East Sussex
- Guarantee
- One year on every job
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Milton Street: your questions answered
Do you take on hotel work around Milton Street?
Yes, hospitality work, including hotels, is part of what we do. Jobs can be programmed room by room, with out-of-hours working possible to arrange.
Is Milton Street within the area you cover?
Yes. Milton Street is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do the sealants smell?
That depends on the sealant. Some smell for a while, some hardly at all.
Can new sealant go over the old?
No, and we never do. It may look fine at first, but the new layer lifts away from the old one. The old sealant has to come out completely.
What’s the difference between intumescent and fire-rated sealant?
Fire-rated is the broad term for sealants tested for fire stopping. Intumescent types expand when heated, and they’re one of the options. The specification and the tested detail decide which is used.
Can you do several jobs on one visit?
Yes, and it often makes sense. Combining jobs makes good use of the visit.
Can you give us a record of the work?
Yes. We record the locations we have sealed and the products used to keep with your fire safety documents.
Where is Mr Mastic based?
We’re a Crawley-based firm. We work across South East England, London and Scotland.
Towns and villages near Milton Street
What else we do in Milton Street
Signs you need fire rated sealant in Milton Street
Buildings are refitted and reconfigured over the years. Conversions to flats and HMOs, and office refits, create new walls and new routes for services, with gaps to match.
These are the problems we’re asked about most:
- Door frames with gaps between frame and wall
- Gaps around pipes and cables through fire-resisting walls
- Gaps filled with a product that isn’t fire-rated
- Cracked or shrunken fire-rated sealant
Community buildings like St Mary and St Peter's Church are part of the picture too: service openings in its walls need the right fire-rated sealant, as in any building.
Before you book anyone
- What preparation is included
- Which sealant they’ll use, and why
- Whether VAT is included
- Are they insured?
How the job changes by surface
Flats and HMOs
Flats and HMOs rely on fire separation between homes and the common parts. We seal the gaps your assessor has identified.
Linear gaps
Some linear gaps have to cope with movement as well as fire. The product and depth are chosen to suit both.
What we do, step by step
We keep the work tidy and contained to the joints we are treating. The job usually takes anything from a few hours to several days, depending on how many gaps there are, and we tell you how long to leave it before we go. Somewhere like Milton Street needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- We begin by agreeing the list of gaps from your assessor’s or designer’s requirements.
- Each gap is measured and its substrate and service noted.
- Unsuitable material such as ordinary foam or silicone is cut out and the gap cleaned.
- We fit backing where needed and apply the fire-rated sealant to depth.
- Every location is recorded with the product used for your files.
Preparing for the visit
- Where the joints are inside, avoid wetting them before we arrive
- Move anything stored near the joints
- Tell us about access, such as stairs, a lift or high-level joints
How to get a quote
To get a quote, call 0345 464 0079 or email us with the location and a short description of the problem. We’ll send you a clear quote before any work starts.
Related advice
Landlord and commercial work in Milton Street
In hotels, rooms out of use cost money, so we plan the work room by room. We have worked in hotels as well as homes and businesses.
We work for landlords and agents as well as homeowners. Sealant work between tenants keeps a property looking cared for before the next move-in.
Leave it or put it right?
Items left open on a fire risk assessment tend to come back at the next review. Having them sealed and recorded now means you can show the action was taken. Older cottages and farmhouses around Milton Street can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
What it costs depends on the size of the job, 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 choose Mr Mastic in Milton Street
- We leave the area clean and tidy
- Anti-fungal silicone where joints get wet
- Quality sealants from Arbo and Everbuild
- Approved under the ARBOMaster scheme
Take a look at what affects the cost and customer reviews.
Honest limits
It helps to know what we can’t do:
- Fire doors that need new seals, closers or hardware
- Walls or floors that weren’t built to resist fire
- Deciding what fire stopping a building needs
If in doubt, call 0345 464 0079 or email us and we will say what we think.
What we seal
- Service penetrations
- Plasterboard & masonry
- Door frames
- Pipe & cable gaps
- Flats & HMOs
- Linear gaps
Fire rated sealant in Milton Street: local notes
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 apply fire-rated sealant to the assessor’s or designer’s specification and the product’s tested details. Milton Street has hotels and guest accommodation in and around it. Hotel work can be planned room by room, with out-of-hours working where needed.
Managing a site like Alfriston School? Then fire-stopping around service openings should be restored whenever new services go in. If you let a flat or house near Berwick (Sussex) station, any gap left by new services in shared walls should be closed with a fire-rated product.
Milton Street is about 4 miles north-east of Seaford, in East Sussex. If you need fire rated sealant in Milton Street, please phone 0345 464 0079 or drop us an email for a quick quote. We are based in Crawley and cover East Sussex. Our East Sussex coverage runs to 289 places, Milton Street among them. Brighton is on our list too, about 13 miles from Milton Street.
We cover every part of the BN26 postcode area for fire rated sealant and the streets around it. We also cover Wilmington (1 mile north-east), Winton (1 mile west), Alfriston (1 mile south-west), Lullington (1 mile south-west) and Dukes Green (1 mile south-west). Further out, we also cover Eastbourne (5 miles south-east), Bexhill-on-Sea (13 miles east), Seaford (4 miles south-west), Lewes (9 miles north-west), Hailsham (5 miles north-east) and Uckfield (11 miles north).
Near you in Milton Street
Around Milton Street, our work takes us to homes and buildings near The Sussex Ox pub and the streets around them. The nearest railway station is Berwick (Sussex) station, about 1.8 miles north. Nearby you will also find Eastbourne District General Hospital (4.4 miles south-east) and Burlough Castle (less than half a mile north-west). Open spaces near Milton Street include Combe Hill.
