Greater London · England

Bexley Riverside Fire Rated Sealant

Fire rated sealant across Bexley Riverside and nearby, with old sealant always removed completely and a 12-month guarantee.

  • Fire seals that have cracked with movement
  • Gaps filled with a product that isn’t fire-rated
  • Open holes round services passing through fire walls

Fire rated sealant for Bexley Riverside homes and businesses

What affects the quote in Bexley Riverside

The quote reflects the job in front of us. We take into account:

  • The product the joint needs
  • How much old sealant there is and how hard it is to remove
  • Access and height
  • How many rooms, windows or areas are involved

No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all play a part.

Helping us quote

What to tell us when you ask for a quote:

  • Pictures of the joints, sent by email
  • How we’d reach the joints
  • Roughly how big the job is
  • The address or postcode of the job

Asking for a quote is easy: let us know the job and the location and its rough size. A few pictures by email make the job easier to understand.

Fire rated sealant in Bexley Riverside

We often work from an action list drawn up by a fire risk assessor for buildings in Bexley Riverside. Send us the list or the survey and we will quote for the fire-rated sealant work on it. We’re often asked to deal with open gaps behind door architraves and joints picked up in a fire-stopping survey, on plasterboard & masonry, pipe & cable gaps and flats & HMOs.

London blocks of flats carry pipes and cables through walls and floors in their common parts and service risers. For managing agents and building owners in Bexley Riverside, that can mean fire-rated sealant around service openings as well as resealing in shared washrooms and kitchens.

We stand behind the work with a 12-month guarantee.

Eleven members of the Mr Mastic team standing in front of branded white vans
Location
Bexley Riverside (DA8, DA7, DA1)
Wider area
Greater London
Guarantee
One year on every job
Quote
A clear quote up front
Call
0345 464 0079
Last updated
26 October 2026

Should I try it myself first?

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.

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 fails, we can still redo it.

What happens on the day

Once we’re on site, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. Most jobs then take anything from a few hours to several days, depending on how many gaps there are. In a London area like Bexley Riverside, the main things to plan are parking and access: tell us about permits, visitor bays or off-street space, which floor we’re working on and whether there’s a lift.

  1. We plan the order of work and access, floor by floor or flat by flat.
  2. We take out any damaged or unsuitable sealant.
  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. We record what was done and flag anything that needs a different system.

How to prepare

  • Let us know about parking restrictions
  • Clear the area around the work
  • Keep pets and children clear of the area while we work

Get a quote

We quote each job on its own, so the first step is telling us about yours. Simply phone 0345 464 0079 or drop us an email and describe the job.

Get a quick quote

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Landlords, agents and businesses in Bexley Riverside

If you manage several properties in or around Bexley Riverside, jobs at different addresses can be quoted together. Send us the addresses and the work at each, and photos by email help.

Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. We can quote for more than one property at once.

Common questions in Bexley Riverside

Can you do fire rated sealant in Bexley Riverside?

Yes, Bexley Riverside is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or drop us an email and let us know what needs doing, and we will send you a clear quote.

I let a flat near Barnehurst station. Can you help?

Yes. We work for landlords and agents as well as homeowners. Just call 0345 464 0079 or email us with the address and what needs doing, and we’ll give you a clear quote.

Are you fully insured?

Yes. Full insurance covers our work.

Can I choose the sealant colour?

We help you choose a colour that suits. The product needed can limit the range.

Will we have a record of what was sealed?

Yes. Locations and products are written up when we finish. If you need pictures or a set layout, ask when you get a quote.

Where do you work from?

We work from Crawley. We cover Bexley Riverside and the rest of Greater London.

Do you do fire sealant around door frames?

Yes, if the gap is within the product’s tested range. Our work is the gap around the frame and we will tell you if we spot problems with the door.

Do I have to be there?

Access is agreed with you when the job is booked. For inside work, that normally means someone being in.

Fire rated sealant around Bexley Riverside

Many London buildings have tight access and loading restrictions, so out-of-hours working can be arranged where needed. 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.

Letting a property close to Barnehurst station? Then fire-rated sealant around pipes and cables through walls and floors needs making good whenever new services go through. If you look after a church, hall or community building such as St Paul's, gaps around pipes and cables are worth checking after any building work there.

Bexley Riverside is about 3 miles north-west of Dartford, in Greater London. We carry out fire rated sealant for homeowners, landlords and businesses in Bexley Riverside and the surrounding area, as part of our work across Greater London. Bexley Riverside is one of 764 towns and villages in Greater London we cover for fire rated sealant. Our London page covers work nearby (12 miles or so).

Every address in DA8, DA7 and DA1 is covered for fire rated sealant, from the main roads to the quietest streets. We cover properties on Mill Road, Hurst Road and Bexley Road and the roads around them. Other places close to Bexley Riverside include Northumberland Heath (1 mile north-west), Barnehurst (1 mile south), Erith (1 mile north), North End (1 mile east) and Slade Green (1 mile east). Further out, we also cover London (12 miles west), City of Westminster (14 miles west), Marylebone (14 miles west), St Pancras (13 miles west), Shoreditch (11 miles west) and Walthamstow (12 miles north-west).

Local landmarks in Bexley Riverside

Locally, jobs take us to homes and businesses close to Braeburn Park, The Royal Oak pub and Trinity School and the streets around them. Bexley Riverside’s nearest station is Barnehurst station, about 0.6 miles south-west. Other landmarks nearby include Broadway Shopping Centre (1.4 miles south-west) and Erith and District Hospital (0.5 miles north). Not far away are Wansunt Pit.

Map of Bexley Riverside © OpenStreetMap contributors

Leave it or put it right?

An unsealed gap lets smoke and fire get round a wall that was built to hold them back. Sealing it properly restores what the wall was there to do, and the work involved is often modest. In London conversions, one flat’s bathroom is often above another flat’s ceiling, so a small leak from tired sealant can mean a neighbour’s ceiling and a lot of disruption. Dealing with it early is far simpler for homes in Bexley Riverside.

A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.

What you get with us

  • Experience in homes, commercial sites and hotels
  • One-year guarantee on every job
  • Over 20 years’ experience
  • We are fully insured

Take a look at our cost guide and our reviews.

Keeping the joints in good condition

Good habits help new joints last longer. Our tips:

  • Report cracked or damaged seals as soon as you notice them
  • Keep pictures of seals that will be hidden
  • Check whether a sealant can be painted before decorating over it
  • Allow for resealing whenever new services are run

Avoid covering a sealed gap with anything that isn’t part of the tested detail. Repairs should use a matching fire-rated product. Ask us if you’re not sure which product was used.

If a fire risk assessment has flagged a gap, do not leave it for the next one. Get it sealed and recorded so the item can be closed.

Common problems we fix in Bexley Riverside

Lots of unsealed gaps appear long after the building was completed. New cables, pipes and data runs go through walls and ceilings and the hole they leave doesn’t always get resealed.

Most people get in touch when they notice one of these:

  • Door frames with gaps between frame and wall
  • New service routes left unsealed after building work
  • Gaps around pipes and cables through fire-resisting walls
  • Sealant items on a fire risk assessment action list

As a London address, Bexley Riverside can be tricky for parking: let us know about parking bays, permits or a driveway.

What your quote should include

  • The length of the guarantee
  • What product goes in the joint
  • How the surfaces are prepared before sealing
  • Whether all the old sealant comes out first

Choosing a sealant specialist

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