Kent · England
Horton Kirby Fire Rated Sealant
Professional fire rated sealant in and around Horton Kirby, with every bit of old sealant taken out first and a 12-month guarantee.
- Door frames with gaps between frame and wall
- Gaps flagged on a fire risk assessment
- Open holes round services passing through fire walls
For landlords and businesses
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
Letting agents and landlords in Horton Kirby can book us as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
Fire rated sealant for homes and businesses in Horton Kirby
Bigger jobs can be worked through in stages, flat by flat or floor by floor. It gives you a list to keep with the building’s fire safety documents. We work on flats & HMOs, service penetrations and pipe & cable gaps, and people most often call us about ordinary sealant used where a fire-rated product was needed and door frames with gaps between frame and wall.
For a small place like Horton Kirby, the journey and timings are agreed in advance, so it can be fitted around guests, clients or events where possible.
All our work is covered by a one-year guarantee, wherever you are in Kent.

- Where
- Horton Kirby (DA4)
- Region
- Kent
- Guarantee
- A year, on every job
- Price
- A clear price before work begins
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
FAQs for Horton Kirby
Will you come out to Horton Kirby?
Yes, Horton Kirby is covered. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Can you do fire rated sealant in Horton Kirby?
Yes, Horton Kirby is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or send us an email with a few details of the job.
Are you an approved applicator?
Yes. Mr Mastic is an ARBOMaster approved applicator.
Will the old sealant be removed?
Yes. Sealing over the old bead is the commonest cause of early failure, so we never do it.
Do you work in flats, HMOs and commercial buildings?
Yes, in flats, HMOs, schools, offices and other buildings, occupied or empty. Tell us how the building is used and we will plan around it.
What fire rating will the seal have?
We do not give ratings or certificates for our work. Your specification sets the requirement, and we apply a product tested for it, recording the locations and products.
Do you carry out fire risk assessments?
No. We follow the requirements from your assessor, designer or building control.
Where is Mr Mastic based?
We are based in Crawley, and we cover South East England, London and all of Scotland.
What affects the cost of fire rated sealant
We quote each job individually. These are the things that affect it:
- Access and height
- The number of rooms or windows
- Working hours on commercial sites
- How much old sealant there is and how hard it is to remove
We do not show prices on the website, because the cost depends so much on the job itself. Call for a quick quote.
Helping us quote
When you call or email, it’s useful to know:
- Where the property is
- What’s wrong with the joints now
- Photos by email, if that’s easy
- Any previous sealing or DIY work
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is. Whenever you are ready, ring 0345 464 0079 or send us an email.
Also near Horton Kirby
More services for Horton Kirby
Honest limits
We’ll always be straight with you, so here’s what new sealant will not do:
- Fire doors that need new seals, closers or hardware
- Certifying a building or signing off its fire safety
- Large holes that need a different fire-stopping system
If in doubt, call 0345 464 0079 or send us an email and we will say what we think.
Joints and surfaces we work on
- Service penetrations
- Door frames
- Linear gaps
- Plasterboard & masonry
- Flats & HMOs
- Pipe & cable gaps
How to look after the new joints
Simple care keeps the joints in good condition. Our advice:
- Keep general-purpose foam and caulk away from fire-stopping gaps
- Check whether a sealant can be painted before decorating over it
- Allow for resealing whenever new services are run
- Take pictures of fire stopping before ceilings or boxing go back
Keep the record we give you with the building’s fire safety documents. It helps whoever checks the building next.
A flagged gap shouldn’t wait for the next assessment. Get it sealed and recorded so you can show it was dealt with.
Commercial buildings in Horton Kirby
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.
If you look after a church, hall or community building such as The Parish Church of Saint Mary, service openings in its walls need the right fire-rated sealant, as in any building. For landlords with property near Farningham Road station, fire-rated sealant around pipes and cables through walls and floors needs making good whenever new services go through. Managing a site like Horton Kirby Church of England Primary School? Then service openings in fire-resisting walls need checking after any refurbishment.
Horton Kirby is about 4 miles south of Dartford, in Kent. We carry out fire rated sealant for homes and businesses in Horton Kirby and the surrounding area. Our Kent coverage runs to 922 places, and Horton Kirby is one of them. Our London page covers work nearby, about 16 miles away.
We work across DA4 for fire rated sealant and the streets around it. Whether your property is on The Street, Rashleigh Way and Churchill Road or anywhere close by, we can help. If you are just outside Horton Kirby, we cover Farningham (1 mile south-west), Speed Gate (2 miles south-east), Eynsford (2 miles south-west), Fawkham Green (2 miles south-east) and Maplescombe (3 miles south). We also work in nearby towns such as Maidstone (15 miles south-east), Dartford (4 miles north), Sevenoaks (8 miles south), Gravesend (6 miles north-east), Tonbridge (13 miles south) and Northfleet (5 miles north-east).
What’s near Horton Kirby
In Horton Kirby, that means homes and buildings near The Fighting Cocks pub, among other places. The nearest railway station is Farningham Road station, roughly 0.8 miles north-west of the centre. Other landmarks nearby include Darenth Park Hospital (3 miles north) and Bluewater (3.5 miles north). Green spaces nearby include Sawyers Lake and Wansunt Pit.
How it works
When we get to you, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. After that, the work takes from a few hours to a few days, depending on the number of gaps and the access. Somewhere as small as Horton Kirby, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We go through the gaps on your list or survey and check each one’s size and substrate.
- We remove any old or unsuitable filler and clean the gap.
- We put in whatever backing or fill the product detail specifies.
- Fire-rated or intumescent sealant is applied to the right depth and tooled.
- Finally, we list where we worked and what we used, for your records.
How to prepare
- Let us know if you’ve seen damp or leaks
- Move anything stored near the joints
- Tell us about access, such as stairs, a lift or high-level joints
Getting a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we will explain what’s involved before giving you a price.
Related advice
Should I try it myself first?
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
Why act early in Horton Kirby
Squirting in whichever sealant is nearest doesn’t make a fire seal. A fire-rated product only performs as tested when it’s installed to its tested detail, so both the product and the method matter. In a small place like Horton Kirby, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
The cost reflects the work involved, not guesswork. That’s why we ask about the job first.
Why book with us
- More than 20 years in sealant work
- Fully insured
- Anti-fungal silicone where joints get wet
- Approved under the ARBOMaster scheme
Read our cost guide and what customers say.
