Surrey · England
The Chart Fire Rated Sealant
Professional fire rated sealant in and around The Chart, with old sealant always removed completely and a one-year guarantee.
- Damaged fire sealant left by other trades
- Linear gaps at the head of walls
- Holes left by a change of layout
How we handle fire rated sealant in The Chart
We do not assess buildings or decide what fire stopping is needed; 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. Typical jobs include linear gaps at the head of walls and gaps around pipes and cables through fire-resisting walls, on service penetrations, flats & HMOs and door frames.
Work in a small place like The Chart is planned ahead, journey included, so it can be fitted around guests, customers or events where possible.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we will sort it.

- Place
- The Chart (RH8)
- Region
- Surrey
- Cover
- 12 months on all our work
- Quote
- A clear price before work begins
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Leave it or put it right?
An open gap in a fire-resisting wall is a route for smoke and fire. A proper seal lets the wall do its job again, and the sealing itself is often a contained piece of work. In a small place like The Chart, 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 a few questions first and agree the price before starting.
Why The Chart clients choose us
- ARBOMaster approved applicator
- We are fully insured
- Anti-fungal silicone where joints get wet
- More than 20 years in sealant work
Read our cost guide or our reviews.
How to look after the new joints
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Include hidden areas like risers in routine checks
- Take photos of fire stopping before ceilings or boxing go back
- Ask every contractor to reseal any fire stopping they disturb
- Store the list of sealed gaps with your building paperwork
Any fire seal that is cut or drilled needs resealing to its tested detail. New services through a sealed wall should include fire stopping in the plan.
It’s easiest to seal gaps while they’re few and easy to reach. Leave them and each new job adds another hole and the job gets bigger.
Towns and villages near The Chart
More services for The Chart
Workplaces and buildings in The Chart
Workplaces and the common parts of blocks of flats in England need a fire risk assessment under the Regulatory Reform (Fire Safety) Order 2005, and gaps around services are often picked up there. We work to the specification you are given, installing the product to its tested details.
Community buildings like St Andrew's are part of the picture too: gaps around pipes and cables are worth checking after any building work there. Managing a site like Limpsfield CofE Infant School? Then fire-stopping around service openings should be restored whenever new services go in.
The Chart is about 6 miles south-east of Caterham, in Surrey. For fire rated sealant in and around The Chart, please phone 0345 464 0079 or drop us an email for a quick quote. We’re based in Crawley and cover Surrey. Across Surrey, we cover 395 places, The Chart among them. There’s also a page for Crawley, roughly 14 miles from The Chart.
Our applicators cover all of the RH8 postcode area for fire rated sealant. Local streets include Stoneleigh Road, St Andrews Way and Ridlands Lane, and we cover them all. If you are just outside The Chart, we cover Pains-Hill (1 mile west), Moorhouse Bank (1 mile north-east), Goodley Stock (1 mile east), Limpsfield (1 mile north-west) and Crockham Hill (1 mile south-east). Further out, we also cover Epsom (15 miles north-west), Horley (10 miles south-west), Redhill (9 miles west), Ewell (15 miles north-west), Reigate (10 miles west) and Caterham (6 miles north-west).
Around The Chart
In The Chart, that means homes and buildings near Carpenters Arms, Oxted School and Hazelwood School and the streets around them. The Chart’s nearest station is Hurst Green station, roughly 1.6 miles west. Other landmarks nearby include Tandridge Priory (0.6 miles north-west). Not far away are Botley Hill and Bay Pond.
How the visit works
When we arrive, we start by going over the job with you, so you know exactly what we are doing. Surfaces next to the work are protected before any work begins. Most jobs take a few hours for a handful of gaps, and longer for a whole building. For a village or hamlet like The Chart, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- Before starting, we go through the specification or action list with you.
- 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.
- We hand over a list of locations and products.
How to prepare
- Mention any parking rules near the property
- Mention any leaks or damp you’ve noticed
- Keep pets and children clear of the area while we work
Get a quote
Want a quote for fire rated sealant? Please ring 0345 464 0079 or email us with a few details. We’ll explain what we’d do and give you a clear quote before we start.
Read more
Do you need fire rated sealant in The Chart?
Sealant applied too thin, without the backing its detail needs, or onto dust won’t perform as it was tested. We see plenty of fire stopping that was hurried, especially where it was squeezed in at the end of a project.
Any of these means the joints need attention:
- Joints picked up in a fire-stopping survey
- Gaps where walls meet ceilings or slabs
- Ordinary sealant used where a fire-rated product was needed
- Open holes round services passing through fire walls
If you let a flat or house near Hurst Green station, new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant.
Questions to ask before booking
- Whether they seal over old material or remove it
- How the joint is cleaned and prepared
- Whether you can choose the colour
- What insurance they hold
When it is not the sealant
New sealant can’t fix everything, and we’d rather say so up front. Sealant will not put right:
- Assessing a building’s fire safety
- Walls or floors that weren’t built to resist fire
- Problems with the door itself rather than the gap around the frame
If in doubt, ring 0345 464 0079 or send us an email and we will say what we think.
Surfaces we seal
- Plasterboard & masonry
- Linear gaps
- Door frames
- Service penetrations
- Flats & HMOs
- Pipe & cable gaps
How we quote for fire rated sealant
The quote reflects the job in front of us. We look at:
- Whether old sealant or filler has to be cut out
- Which sealant suits the joint
- Any working-time requirements on site
- Whether there’s mould to deal with
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.
Asking for a quote
Before you ask for a quote, have a think about:
- Photos by email, if that is easy
- Whether it’s a home or a business
- The address or postcode of the job
- What the problem is, such as mould, gaps, leaks or cracking
For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we’ll talk you through the work.
How the job changes by surface
Linear gaps
Long, narrow gaps appear where walls meet slabs and ceilings. We seal them to the tested detail, with backing where it’s needed.
Door frames
Behind most architraves is a gap between frame and wall. Where it’s open, we seal it to the product’s details for that gap size before the trim goes back.
Your questions about fire rated sealant in The Chart
Can you do fire rated sealant in The Chart?
Yes. We work across London and the South East, and The Chart is part of that. Just ring 0345 464 0079 or email us with a few details of the job.
Is The Chart within the area you cover?
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.
Is there any odour?
Sometimes, a little. Any smell clears as the sealant cures.
Can I do it myself?
Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. If it does not work out, we can redo it.
Where do you work from?
Our base is in Crawley, and we cover South East England, London and all of Scotland.
What’s the difference between intumescent and fire-rated sealant?
Fire-rated sealant covers any sealant tested for use in fire stopping. Intumescent types expand when heated, and they’re one option among several. We use whichever the specification and tested details call for.
Do you have insurance?
Yes. Mr Mastic is fully insured.
I’m a tenant. Can you help?
We’re happy to deal with the tenant, landlord or agent. Get your landlord’s agreement first.
