Kent · England
Sandwich Fire Rated Sealant
We cover Sandwich for 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.
- Gaps filled with a product that is not fire-rated
- Open joints along the top of partitions
- Gaps left after a refit or conversion
Fire rated sealant for homes and businesses in Sandwich
Deciding which gaps need fire stopping is not our role; that comes from your fire risk assessor, designer or building control. What we do is apply the right product to that specification, properly and neatly. We work on service penetrations, pipe & cable gaps and door frames, and people most often call us about open gaps behind door architraves and sealant items on a fire risk assessment action list.
In a smaller place like Sandwich, commercial jobs tend to be smaller buildings: a pub, a surgery, a school, a shop or a few business units. Each needs the same care with its sealant as any larger building.
We guarantee the work for a year. If something isn’t right with it in that time, tell us and we will put it right.

- Place
- Sandwich (CT13)
- Wider area
- Kent
- Cover
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Surface by surface
Door frames
Our work is the joint between frame and wall. Doors, seals and closers are for a door specialist, and we will say if we spot a problem with them.
Linear gaps
Linear gaps run along the head of walls, at floor edges and between panels. They’re sealed with a fire-rated sealant over backing where the detail calls for it.
Commercial buildings in Sandwich
If you run a hotel, guest house or holiday let in a coastal place like Sandwich, busy months put washrooms and kitchens under pressure, so it’s worth checking the sealant before the busiest weeks. 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 apply fire-rated sealant to the assessor’s or designer’s specification and the product’s tested details.
For landlords with property near Sandwich station, fire-rated sealant around pipes and cables through walls and floors needs making good whenever new services go through. Community buildings like Sandwich United Reformed Church are part of the picture too: older buildings that have had new heating or wiring often have service gaps worth checking.
Sandwich is about 5 miles north-west of Deal, in Kent. Jobs in Sandwich get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. Our Kent coverage runs to 922 places, Sandwich among them. We also work in Chelmsford, about 49 miles from Sandwich.
All of CT13 is covered for fire rated sealant, from the main roads to the quietest streets. Whether your property is on Cattle Market, Market Street and High Street or a nearby road, we can help. Neighbouring places we cover for fire rated sealant include Great Stonar (1 mile north), Felderland (1 mile south), Worth (1 mile south), Woodnesborough (1 mile south-west) and Statenborough (1 mile south-west). Larger places within reach include Canterbury (11 miles west), Margate (8 miles north), Dover (10 miles south), Folkestone (15 miles south-west), Ramsgate (5 miles north-east) and Broadstairs (7 miles north-east).
Local landmarks in Sandwich
Around Sandwich, our work takes us to homes and buildings near Ham Fen, Sir Roger Manwood's School and The Red Cow Public House, among other places. Sandwich has its own railway station: Sandwich station. Well-known places in the area include The Precinct Toy Collection (within half a mile north) and Ramsgate General Hospital (5 miles north-east). For a walk, there’s Monk's Wall nature reserve.
Common questions in Sandwich
Is Sandwich within the area you cover?
Yes, Sandwich is covered. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Do you take on hotel work around Sandwich?
Yes, hospitality work, including hotels, is part of what we do. Work can be planned room by room, and out-of-hours working can be arranged.
Which products do you use?
It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.
Can I use normal mastic around a pipe through a fire wall?
No. Where a fire-rated seal is needed, it has to be a product tested for that use, installed to its details.
Are you insured?
Yes. Mr Mastic is fully insured, and we have been doing sealant work for more than 20 years.
Is there a guarantee?
Yes, for a year. If anything is not right with the work within the year, let us know and we will sort it.
I rent my home. Can I book you?
Yes, though it’s best to check with your landlord first. Landlords are often happy for the work to be arranged.
Do you remove the old sealant?
Always. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
Why act early in Sandwich
Doing it once, properly, beats doing it twice. If the details weren’t followed, the seal may need redoing once someone inspects it. In an older home around Sandwich, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.
What you pay reflects the work, not a rough estimate. That’s why we ask a few questions first and agree the price before starting.
Why choose Mr Mastic in Sandwich
- Quality sealants from Arbo and Everbuild
- Fully insured
- Neat joints and a tidy finish
- Every job guaranteed for a year
How the visit works
There is not much for you to do on the day. Point us to the joints and we will get on with it. The work itself takes anything from a few hours to several days, depending on how many gaps there are. For a job in Sandwich, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- First we work through your list or survey, measuring each gap and checking what it’s formed in.
- We remove any old or unsuitable filler and clean the gap.
- Backing or fill is fitted where the product’s tested detail calls for it.
- The sealant goes in to the depth its detail sets, then it’s tooled off.
- Finally, we list where we worked and what we used, for your records.
Getting ready for the visit
- Let us know about earlier repairs to the joints
- Mention any sign-in or site rules at work premises
- Let us know about parking restrictions
How to get a quote
To get a quote, ring 0345 464 0079 or email us and tell us where the job is and what the problem looks like. You’ll have a clear quote before work begins.
Read more
Signs you need fire rated sealant in Sandwich
If the sealant is too shallow, has the wrong backing or sits on a dusty surface, it is not installed as tested. Rushed fire stopping is common, especially where it was squeezed in at the end of a project.
Most people get in touch when they notice something like this:
- Open gaps behind door architraves
- Open holes round services passing through fire walls
- Fire seals that have cracked with movement
- Gaps flagged on a fire risk assessment
If you look after a building such as Sandwich Infant School, fire-stopping around service openings should be restored whenever new services go in.
Questions to ask before booking
- How hidden problems are handled
- How the surfaces are prepared before sealing
- When the joint can take water or movement
- How much experience the applicator has
Also near Sandwich
What else we do in Sandwich
For landlords and businesses
We also work for property managers and facilities teams in Sandwich and across Kent. Several sites can go on one quote.
From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.
What affects the cost of fire rated sealant
For a quick quote, just ask. What matters most is:
- How many areas need sealing
- When we can work, for business premises
- Which sealant suits the joint
- Whether old sealant or filler has to be cut out
Doing several joints on one visit is usually more efficient than separate visits, so it’s worth mentioning everything you’d like done. We’ll give you a clear quote for the lot.
What to tell us for a quote
You don’t need to know the technical terms. It helps if you can tell us:
- The type of property
- Where the property is
- The rough size of the job
- Pictures of the joints, sent by email
There’s no standard price list. Instead, we give you a clear quote for your job. To get started, ring 0345 464 0079 or send us an email.
Can I do it myself?
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
