Greater London · England

Fire-rated sealant in Southend, Greater London

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

  • Gaps filled with a product that is not fire-rated
  • Unsealed gaps where pipes and cables go through a wall
  • Fire seals that have cracked with movement

Fire rated sealant near Southend

Work for landlords, hotels and businesses

Landlords and letting agents in Southend 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.

Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.

About our fire rated sealant in Southend

Door frame gaps, linear joints and holes around services all have their own details. Measuring the gap and checking what it’s made of comes first, then apply it to the depth its tested detail calls for. If you have linear gaps at the head of walls and sealant items on a fire risk assessment action list, we can help, whatever the surface.

London’s offices, shops, hotels, student accommodation and blocks of flats all have joints to look after, whether that is washroom resealing or fire-rated sealant around service openings. Where a building in Southend needs to stay open, work can be planned outside normal hours.

You are covered for a year from the day we finish. If there’s a problem with it, please phone 0345 464 0079 or email us.

Location
Southend (SE6, SE26, SE23)
Region
Greater London
Guarantee
One year on every job
Price
A clear price before we start
Telephone
0345 464 0079
Page updated
26 October 2026
The Mr Mastic team in navy uniforms in front of three Mr Mastic vans

Honest limits

In fairness, some problems need a different trade:

  • Big openings where sealant alone isn’t the tested solution
  • Deciding what fire stopping a building needs
  • Construction that doesn’t provide fire resistance on its own

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

What we seal

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

Quotes for fire rated sealant in Southend

We quote each job individually. These are the things that affect it:

  • Mould in or behind the old joints
  • Which sealant suits the joint
  • Access and height
  • When we can work, for business premises

Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. You’ll know the price before we begin.

Asking for a quote

The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:

  • Photos by email, if that’s easy
  • What’s wrong with the joints now
  • Whether it has been sealed before
  • The rough size of the job

It all starts with a short chat. Describe the problem, the location and the size of the job, and we’ll explain how we’d tackle it. Whenever you are ready, call 0345 464 0079 or drop us an email.

Why deal with it now?

Waiting for the next refit can leave a gap open for years. On its own, sealing it now is a small job that does not depend on other work. Converted houses in London often have a bathroom above someone else’s living room, 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.

Doing several joints on one visit usually makes better use of the time than several visits, so tell us about everything that needs sealing. You will get one clear quote for the whole job.

Why us?

  • Domestic, commercial and hotel work
  • Quality sealants from Arbo and Everbuild
  • Any old sealant cut out fully, not covered over
  • 4.9 on Google from 180+ five-star reviews

Read what affects the cost and customer reviews.

How it works

Once we are on site, we check the joints match what you told us. If anything is different, we explain it before carrying on. Most jobs then take from a few hours to a few days, depending on the number of gaps and the access. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in Southend. A visitor permit or a nearby bay makes the visit run more smoothly.

  1. We begin by agreeing the list of gaps from your assessor’s or designer’s requirements.
  2. Each gap is measured and its substrate and service noted.
  3. Any non-fire-rated filler is removed.
  4. We fit backing where needed and apply the fire-rated sealant to depth.
  5. We hand over a list of locations and products.

Getting ready for the visit

  • Mention any sign-in or site rules at work premises
  • Keep children and pets away from the work area
  • Let us know about parking restrictions

Get a quote

There’s no standard price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, call 0345 464 0079 or send us an email.

Get a price

Advice

Questions from Southend

Is parking an issue for fire rated sealant in Southend?

Parking in Southend, as in most of London, takes a little planning: a visitor permit or a nearby bay makes the day run more smoothly.

Can you do fire rated sealant in Southend?

Yes. Our work covers London and the South East, and Southend is part of that. You can ring 0345 464 0079 or email us and tell us what needs doing.

Can I do it myself?

You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. If it doesn’t work out, we can redo it.

Is it OK to seal over old sealant?

No. Fresh sealant doesn’t stick to old sealant, and anything trapped underneath, including mould and water, stays there. We remove it all first.

What fire rating will the seal have?

That is not something we state or certify. The requirement comes from your assessor, designer or building control, and we fit a product whose tested details meet it.

Do I have to be there?

If the work is inside, we need someone to let us in. Once we have agreed the job, you don’t need to watch us work.

Is there any odour?

Some sealants have a smell while they cure, which fades as it sets. Opening a window helps.

Can I add another job to the visit?

Yes, we can. More than one area can go on one quote.

DIY versus a professional finish

If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it does not work out, we can still put it right.

If you’ve already had a go yourself, that is fine. We remove it and do the joint properly, so tell us about it when you ask for a quote.

What we’re called out for in Southend

Buildings are refitted and reconfigured over the years. Conversions to flats and HMOs, and office refits, create new walls and new routes for services, with gaps to match.

The problems people normally mention when they call are:

  • Gaps where walls meet ceilings or slabs
  • Joints picked up in a fire-stopping survey
  • Gaps left after a refit or conversion
  • Ordinary sealant used where a fire-rated product was needed

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

What your quote should include

  • Whether they’re fully insured
  • How long the guarantee is
  • What product goes in the joint
  • Is the old sealant removed completely?

How to choose a mastic man

Commercial buildings in Southend

Commercial buildings in London often have strict access rules and limited loading, so out-of-hours working can be arranged where needed. 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 work to the specification you’re given, installing the product to its tested details.

If you look after a church, hall or community building such as St Dunstan, service openings in its walls need the right fire-rated sealant, as in any building. If you look after a building such as Elfrida Primary School, service openings in fire-resisting walls need checking after any refurbishment.

Southend is about 2 miles north of Beckenham, in Greater London. Anywhere in SE6, we cover fire rated sealant for homes and businesses. Our area takes in 764 places across Greater London, large and small. For nearby work, see our London page (6 miles or so).

Every address in SE6, SE26 and SE23 is within our area for fire rated sealant. Whether your property is on Oslac Road, Orford Road and Aitken Road or anywhere close by, we can help. Being close to the A2218, Southend is easy for our applicators to reach for fire rated sealant. We also cover the places around Southend: Bellingham (1 mile north), Bell Green (1 mile west), Catford (1 mile north-east), Perry Vale (1 mile west) and Sydenham (1 mile west). Within a short drive, we also cover London (6 miles north-west), City of Westminster (8 miles north-west), Marylebone (8 miles north-west), Kensington (9 miles north-west), St Pancras (8 miles north-west) and Shoreditch (7 miles north).

Near you in Southend

Typical jobs here are in homes near Allenby Tutorial Trust, Sedgehill School and Forster Memorial Park and the streets around them. Southend has its own railway station: Bellingham station. Well-known places in the area include Prefab Museum (1 mile east) and Lewisham Shopping Centre (2.2 miles north). For a walk, there’s Downham Woodland Walk and Knight's Hill.

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