Surrey · England

Fire-rated sealant in Chelsham, Surrey

Fire rated sealant for Chelsham and the surrounding area: careful preparation, the right product and tidy work. Ask us for a quick quote.

  • Unsealed gaps around fire door frames
  • Gaps filled with a product that isn’t fire-rated
  • Linear gaps at the head of walls

Fire rated sealant in Chelsham

How we quote for fire rated sealant

We do not publish a price list, because jobs vary so much. The quote depends on:

  • The product the joint needs
  • Access and height
  • How many areas need sealing
  • Working hours on commercial sites

We don’t show prices on the website, because each job is priced on what it involves. For a quick quote, please phone 0345 464 0079 or send us an email.

What we need to know

The more you tell us, the more accurate the quote. When you ask for a quote, tell us:

  • What the problem is, such as mould, gaps, leaks or cracking
  • Whether it has been sealed before
  • A few photos by email, if you can
  • The type of property

For fire rated sealant in Chelsham, phone 0345 464 0079 or send us an email. Tell us what the problem is and where, and you’ll get a clear quote before any work starts.

Fire rated sealant for homes and businesses in Chelsham

We can work through a building room by room or floor by floor, with each location and product recorded. That record is useful for your files and for whoever looks at the building next. Common call-outs are for seals cut through by electricians, plumbers or data installers and new service routes left unsealed after building work, on service penetrations, door frames and flats & HMOs.

If you have holiday lets, a converted barn used for business or a community building near Chelsham, the washrooms, kitchens and any fire-rated joints need the same care as a big site.

You are covered for a year from the day we finish. If anything is not right with it, phone 0345 464 0079 or drop us an email.

The Mr Mastic team in navy uniforms in front of three Mr Mastic vans
Place
Chelsham (CR6)
Wider area
Surrey
Guarantee
12 months on all our work
Quote
A clear price before work begins
Phone
0345 464 0079
Updated
26 October 2026

Common questions in Chelsham

Do you work for landlords with property near Woldingham station?

Yes, rental work is part of what we do. You can phone 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before we start.

Do you cover smaller places like Chelsham?

Yes. Chelsham is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.

Should I try DIY first?

Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.

Do you hold any approvals?

Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.

How much does fire rated sealant cost in Chelsham?

The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote.

Is it messy?

Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.

Can ordinary silicone be used in a fire-stopping gap?

No. Ordinary silicone, caulk or foam is not tested as fire stopping. If it’s been used, we remove it and use the right product.

Do you remove the old sealant?

Always. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.

What the job involves on each surface

Masonry and concrete

Brick, block and concrete walls and floors are sealed with products tested in masonry. The gap is cleaned of dust first so the seal has something sound to bond to.

Flats and HMOs

In occupied buildings, we plan the order of work with you. Access to flats and common areas is agreed in advance to keep disruption down.

DIY sealant or a professional job?

Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.

A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.

Landlord and commercial work in Chelsham

Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance that we can handle for you.

From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.

Commercial buildings in Chelsham

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’re given, installing the product to its tested details.

For landlords with property near Woldingham station, new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant. If you look after a church, hall or community building such as Church of St Mary the Virgin, older buildings that have had new heating or wiring often have service gaps worth checking.

Chelsham is about 3 miles north-east of Caterham, in Surrey. If you need fire rated sealant in Chelsham, it’s easy to get a quote: please phone 0345 464 0079 or email us. We’re based in Crawley and cover Surrey. Across Surrey, we cover 395 places, and Chelsham is one of them. There’s also a page for London, roughly 13 miles from Chelsham.

Postcode districts we cover here for fire rated sealant: CR6. Fire rated sealant is available to properties on Chelsham Common and Chelsham Road and the roads around them. Other places close to Chelsham include Farleigh (1 mile north), Warlingham (1 mile west), Hamsey Green (1 mile west), Fickleshole (1 mile north-east) and New Addington (2 miles north). We also work in nearby towns such as Epsom (10 miles west), Horley (11 miles south-west), Redhill (8 miles south-west), Ewell (10 miles west), Reigate (9 miles south-west) and Caterham (3 miles south-west).

Landmarks near Chelsham

Around Chelsham, our work takes us to homes and buildings near Warlingham School, Ledgers Wood and Hare & Hounds pub, among other places. The nearest railway station is Woldingham station, roughly 1.9 miles south-west. Other landmarks nearby include Warlingham Park Hospital (less than half a mile north) and East Surrey Museum (3 miles south-west). Green spaces nearby include Hutchinson's Bank and Nore Hill.

Map of Chelsham © OpenStreetMap contributors

Signs you need fire rated sealant in Chelsham

Buildings are refitted and reconfigured over the years. A house turned into flats or an HMO, or an office split into smaller units, brings new walls, new service routes and new gaps.

Any of these means the joints need attention:

  • Fire seals that have cracked with movement
  • Holes left by a change of layout
  • Standard silicone or caulk in a fire-stopping gap
  • Door frames with gaps between frame and wall

Schools such as Warlingham Village Primary School are buildings too, and gaps opened by contractors for new cabling are a common finding in schools and offices.

What your quote should include

  • How long to leave it before use
  • How much experience the applicator has
  • How long the guarantee is
  • How the surfaces are prepared before sealing

10 questions to ask before you book

Honest limits

We’d rather tell you now than do work that won’t last, so here’s what sealant can’t put right:

  • Construction that does not provide fire resistance on its own
  • Sign-off of the building, which sits with building control or your assessor
  • Assessing a building’s fire safety

If in doubt, call 0345 464 0079 or send us an email and we will say what we think.

Surfaces we seal

  • Pipe & cable gaps
  • Plasterboard & masonry
  • Service penetrations
  • Door frames
  • Linear gaps
  • Flats & HMOs

The process

The work is kept neat and contained to the area we are working on. Expect the work to take anything from a few hours to several days, depending on how many gaps there are. In a small place like Chelsham, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  1. Access to each area is agreed so the work can run in order.
  2. Old, damaged or unsuitable sealant is removed.
  3. Dust and loose debris are cleaned from each gap.
  4. The fire-rated or intumescent sealant is applied and tooled to the tested detail.
  5. Locations and products are written up and any gaps unsuitable for sealant are flagged.

How to prepare

  • Where the joints are inside, avoid wetting them before we arrive
  • Keep children and pets away from the work area
  • Tell us if parking is tricky

Getting a quote

A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and email pictures if that’s easy.

Ask for a quote

Related advice

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job