Kent · England
Fire-rated sealant in South Green, Kent
Fire rated sealant for South Green, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Door frames with gaps between frame and wall
- Linear gaps at the head of walls
- Gaps around pipes and cables through fire-resisting walls
Fire rated sealant in South Green, done properly
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, linear gaps and flats & HMOs, and the jobs we see most are new service routes left unsealed after building work and unsealed gaps around fire door frames.
If you have holiday lets, a converted barn used for business or a community building near South Green, washroom and kitchen sealant and any fire-rated joints need the same attention as anywhere.
You’re covered for a year from the day we finish. If there’s a problem with it, please call 0345 464 0079 or send us an email.
- Location
- South Green (ME9)
- Wider area
- Kent
- Cover
- A year, on every job
- Quotes
- A clear price before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
When it isn’t the sealant
Before booking, it’s worth knowing the limits too:
- Construction that does not provide fire resistance on its own
- Doors that aren’t fire doors in the first place
- Sign-off of the building, which sits with building control or your assessor
If in doubt, call 0345 464 0079 or drop us an email and we will say what we think before booking.
Where we work in South Green
- Door frames
- Plasterboard & masonry
- Linear gaps
- Pipe & cable gaps
- Service penetrations
- Flats & HMOs
Common questions in South Green
Is South Green in your area for fire rated sealant?
Yes, South Green is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or send us an email with a few details of the job.
Do you cover smaller places like South Green?
Yes, we do. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Should I try DIY first?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Where is Mr Mastic based?
We work from Crawley. Our applicators cover South Green, along with the rest of our area.
Can I choose the sealant colour?
We help you choose a colour that suits, from white and clear to greys and other shades. The product needed can limit the range.
What fire rating will the seal have?
Ratings and certificates are not something we issue. What’s required is set by your assessor or designer, and the product’s tested details show what it achieves, and we install to them.
What do you put in the joint?
Each joint gets the product that suits it. Movement, water and weather all affect the choice.
Do the sealants smell?
It depends on the product. Some smell for a while, some hardly at all, and any smell fades as they cure.
What affects the quote in South Green
There’s no set price list. What we look at:
- Access and height
- The product the joint needs
- The old material and how stubborn it is
- The size of the job
Every job is a little different, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we will explain the quote if you ask.
Helping us quote
When you call or email, these details help:
- The type of property
- The rough size of the job
- Where the property is
- Access, such as stairs, a lift or height
There’s no standard price list, as no two jobs are quite the same. Instead, we give you a clear quote for your job. To arrange one, call 0345 464 0079 or drop us an email.
Landlord and commercial work in South Green
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together, and we’re fully insured.
How to look after the new joints
A little care helps the new joints last. Our advice:
- Don’t paint over fire sealant until it has cured
- Include hidden areas like risers in routine checks
- Don’t fill fire-stopping gaps with ordinary foam or silicone
- Report cracked or damaged seals as soon as you notice them
Leave the sealant to cure fully before painting near it. Some fire-rated sealants can be painted and some cannot, so ask us which we used.
Leave a fire-stopping gap open and smoke can move through the building much more easily. Closing it is usually a straightforward job.
What fire rated sealant looks like in South Green
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.
Letting a property close to Newington station? Then new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant. For buildings such as St Mary Magdalene Church, gaps around pipes and cables are worth checking after any building work there.
South Green is about 4 miles south-west of Sittingbourne, in Kent. Every kind of property in South Green can book us for fire rated sealant, old or new, large or small. Every job comes with our one-year guarantee. South Green is one of 922 towns and villages in Kent where we work. Our Chelmsford page covers work nearby (30 miles or so).
All of ME9 is covered for fire rated sealant. If you are just outside South Green, we cover Stockbury (1 mile north-west), Oad Street (2 miles north-east), Silver Street (2 miles east), Bredgar (2 miles east) and Danaway (2 miles north-east). Further out, we also cover Maidstone (6 miles south-west), Ashford (15 miles south-east), Sittingbourne (4 miles north-east), Gravesend (14 miles north-west), Faversham (10 miles east) and Minster (10 miles north-east).
Landmarks near South Green
We work in homes and buildings around Stockbury Hill Wood and The Three Squirrels pub, among other places. South Green’s nearest station is Newington station, roughly 3 miles north of the centre. Nearby you will also find Leeds Castle (4.4 miles south) and KIMS hospital (4.5 miles west). Not far away are Detling Hill.
Nearby places to South Green
What else we do in South Green
Different surfaces, different methods
Masonry and concrete
For masonry and concrete, we use a product tested in that substrate. We clean out dust and debris before sealing.
Linear gaps
Linear gaps run along the head of walls, at floor edges and between panels. We seal them to the tested detail, with backing where it’s needed.
DIY sealant or a professional job?
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. Everything old must be removed first.
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
How it works
Before we leave, we go over the finished joints with you. The visit itself generally takes from a few hours to a few days, depending on the number of gaps and the access, depending on the size of the job. In a small place like South Green, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- 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.
- The specified fire-rated sealant goes in over any backing its detail requires.
- Every location is recorded with the product used for your records.
Before we arrive
- On commercial sites, let us know about site rules
- Keep children and pets away from the work area
- Clear the area around the work
How to get a quote
To get a quote, ring 0345 464 0079 or drop us an email with the location and a short description of the problem. We will send you a clear quote before any work starts.