Greater London · England

Fire-rated sealant in North Cheam, Greater London

Specialist fire rated sealant for North Cheam: the right sealant, proper preparation and a neat finish. Call for a quick quote.

  • Gaps around pipes and cables through fire-resisting walls
  • Fire seals that have cracked with movement
  • Seals cut through by electricians, plumbers or data installers

Trusted fire rated sealant in North Cheam

Why it’s worth doing now in North Cheam

Doing it once, properly, beats doing it twice. If the details weren’t followed, the seal may need redoing when the building is next checked. In older London homes, water behind a failed joint soaks into brick and timber without much sign, and once it shows in North Cheam, the repair is bigger than a sealant job.

What it costs depends on the size of the job, how much old material has to come out and access to the work. You will have a clear quote before any work starts.

What you get with us

  • A 12-month guarantee on all work
  • Rated 4.9 stars on Google
  • Domestic, commercial and hotel work
  • Any old sealant cut out fully, not covered over

Take a look at what affects the cost and what customers say.

Fire rated sealant in North Cheam, done properly

Later work by other trades often breaks through fire stopping, especially in flats, HMOs, offices and schools. A new cable run or a replaced pipe can leave an open hole behind. Those are the gaps we close, using a tested fire-rated product. If you are dealing with fire seals that have cracked with movement and joints picked up in a fire-stopping survey, we can put it right, on pipe & cable gaps, flats & HMOs and linear gaps alike.

Across London, offices, shops, hotels, student halls and blocks of flats all need sealant work from time to time, from washroom silicone to fire-rated sealant around pipes and cables passing through walls. Where a building in North Cheam needs to stay open, work can be planned outside normal hours.

A one-year guarantee comes as standard, so you are covered after we have gone.

Place
North Cheam (SM3, KT4, SM1)
Region
Greater London
Guarantee
One year on every job
Price
Quoted before any work starts
Telephone
0345 464 0079
Page updated
26 October 2026
Mr Mastic applicators lined up beside the company vans, one holding a sealant gun

Keeping the joints in good condition

Simple care keeps the joints in good condition. Our advice:

  • Ask every contractor to reseal any fire stopping they disturb
  • Ask which product was used before you paint
  • Plan fire stopping into any work that goes through walls or floors
  • Check risers, ceiling voids and cupboards during building checks

Tell other trades that the gaps have been sealed, and make sure anything they disturb is resealed with a suitable product. Later work is a common cause of damaged fire stopping.

It’s easiest to seal gaps while they’re few and easy to reach. Over time, more work adds more holes.

Should I try it myself first?

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.

What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions.

What sealant work cannot fix

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

  • Construction that does not provide fire resistance on its own
  • Large holes that need a different fire-stopping system
  • Issuing a fire rating or certificate for a building

If in doubt, ring 0345 464 0079 or send us an email and we’ll say what we think before you book.

Surfaces we seal

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

Common problems we fix in North Cheam

Sometimes the wrong product was used from the start: ordinary expanding foam, standard silicone or decorators’ caulk where a fire-rated seal was needed. It may look fine, but it is not a fire-rated seal.

The problems people normally mention when they call are:

  • Fire stopping disturbed by later work
  • Gaps flagged on a fire risk assessment
  • Open gaps behind door architraves
  • Standard silicone or caulk in a fire-stopping gap

For site and facilities teams at buildings such as Cheam Park Farm Primary Academy, gaps opened by contractors for new cabling are a common finding in schools and offices.

What to look for in a quote

  • Whether VAT is included
  • Are they insured?
  • Whether they seal over old material or remove it
  • Which sealant they’ll use, and why

10 questions to ask before you book

Surface by surface

Door frames

Behind most architraves is a gap between frame and wall. We seal any open gap to the product’s tested details before the trim goes back.

Plasterboard walls

Holes in plasterboard are often cut roughly for services. Where a hole is bigger than the sealant’s tested range, it needs another approach and we will flag it.

Your questions about fire rated sealant in North Cheam

Is North Cheam in your area for fire rated sealant?

Yes, North Cheam is within the area we cover. Our work covers London and the South East. You can ring 0345 464 0079 or email us and let us know what needs doing, and we will give you a clear quote.

I let a flat near West Sutton station. Can you help?

Yes, rental work is part of what we do. Just ring 0345 464 0079 or send us an email and tell us about the property, and we’ll give you a clear price.

How long will you be here?

As a guide, most jobs take anything from a few hours to several days, depending on how many gaps there are. Larger jobs naturally take longer, and we will tell you how long to expect.

Are you an approved applicator?

Yes. We’re an ARBOMaster approved applicator.

Is it OK to seal over old sealant?

No, it won’t last. It can look neat for a few weeks, but the new bead soon lifts. Removing the old sealant completely is the only lasting way.

Is it worth trying it myself?

For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.

Will you assess my building’s fire safety?

No. Your fire risk assessor, designer or building control decides that. Our job is applying the sealant to their specification.

What does fire rated sealant cost?

There’s no set price, as it depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.

How the visit works

A visit follows a simple pattern: we look at the joints together, mask and protect the surrounding surfaces, do the work and clear up. It generally takes from a few hours to a few days, depending on the number of gaps and the access. For a job in North Cheam, parking and access are the things to plan: tell us about permits, visitor bays or off-street space, which floor we’re working on and whether there’s a lift.

  1. We go through the gaps on your list or survey and check each one’s size and substrate.
  2. We remove any old or unsuitable filler and clean the gap.
  3. Backing or fill is fitted where the product’s tested detail calls for it.
  4. We apply the fire-rated or intumescent sealant to the specified depth and tool it.
  5. Locations and products are noted so you have them on file.

Before we arrive

  • For indoor joints, keep the area dry beforehand if you can
  • Let us know if you’ve seen damp or leaks
  • Mention any tricky access

Get a quote

We don’t publish a price list, because every job is different. Instead, we send you a clear quote for your job. To get started, ring 0345 464 0079 or send us an email.

Ask for a quote

Advice

Commercial buildings in North Cheam

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. Commercial buildings in London often have strict access rules and limited loading, so out-of-hours working can be arranged where needed.

North Cheam is in London, so parking needs planning: let us know about parking bays, permits or a driveway. For buildings such as St Oswald Church, gaps around pipes and cables are worth checking after any building work there.

North Cheam is about 3 miles north-east of Epsom, in Greater London. From the centre of North Cheam to the outskirts, we cover fire rated sealant for every kind of property. Our Greater London coverage runs to 764 places, North Cheam among them. Our London page covers work nearby (10 miles or so).

We work across SM3, KT4 and SM1 for fire rated sealant and the streets around it. You will find streets such as Glyn Road, Covey Road and Lloyd Road. Neighbouring places we cover for fire rated sealant include Cuddington (1 mile south-west), Lower Morden (1 mile north), Sutton Common (1 mile north-east), Stoneleigh (1 mile south-west) and Morden (2 miles north). Further out, we also cover London (10 miles north-east), City of Westminster (10 miles north), Marylebone (11 miles north), Kensington (9 miles north), St Pancras (12 miles north) and Shoreditch (12 miles north-east).

Landmarks near North Cheam

We work in homes and buildings around The Nonsuch Inn, Sutton College of Learning for Adults and Nonsuch Park and the streets around them. The closest station to North Cheam is West Sutton station, about 0.8 miles south-east. A little further out are Chessington Castle Hill (3.2 miles west) and St. Anthony's Hospital (0.6 miles north). The countryside around North Cheam includes Henman Hill and Derwent Floodwash.

Map of North Cheam © OpenStreetMap contributors
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job