Greater London · England

Upper Edmonton Fire Rated Sealant

We cover Upper Edmonton for intumescent and fire-rated sealant around gaps, frames and service penetrations. Old sealant removed completely, joints prepared properly and a 12-month guarantee.

  • Sealant items on a fire risk assessment action list
  • Linear gaps at the head of walls
  • Open gaps behind door architraves

Fire rated sealant near Upper Edmonton

How we handle fire rated sealant in Upper Edmonton

We often work from an action list drawn up by a fire risk assessor for buildings in Upper Edmonton. Send us the list or the survey and we will quote for the fire-rated sealant work on it. We work on service penetrations, linear gaps and plasterboard & masonry, and common reasons people get in touch are open holes round services passing through fire walls and gaps where walls meet ceilings or slabs.

Commercial work in London comes with its own logistics: loading restrictions, building rules and tight access. For a building in Upper Edmonton, we agree timings and access before anything starts.

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

The Mr Mastic team in navy uniforms in front of three Mr Mastic vans
Location
Upper Edmonton (N18, N9, N17)
Region
Greater London
Cover
A year, on every job
Price
A clear price before work begins
Telephone
0345 464 0079
Last updated
26 October 2026

Why act early in Upper Edmonton

A quick fill with any sealant to hand isn’t fire stopping. A fire-rated product only performs as tested when it’s installed to its tested detail, which is why we match the product and the method to each gap. 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.

A few things move the cost up or down: how much old sealant there is and how stubborn it is, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.

Why book with us

  • We leave the area clean and tidy
  • Quality sealants from Arbo and Everbuild
  • Fully insured
  • Every job guaranteed for a year

Read what affects the cost and our reviews.

Should I try it myself first?

If you’ve already had a go yourself, that is fine. We remove it and do the joint properly.

What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is.

Honest limits

A few problems are outside what sealant work can do:

  • Sign-off of the building, which sits with building control or your assessor
  • Openings too large for sealant, which need batts, boards or another system
  • Assessing a building’s fire safety

Not sure which it is? You can ring 0345 464 0079 or email us and we’ll tell you honestly.

Joints and surfaces we work on

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

Common problems we fix in Upper Edmonton

Door frames are a common weak spot. The architrave hides the gap between frame and wall, so it’s easy to leave unsealed when doors are changed.

If you can see any of these, it’s time to have the joints looked at:

  • Ordinary sealant used where a fire-rated product was needed
  • Fire seals that have cracked with movement
  • Damaged fire sealant left by other trades
  • Door frames with gaps between frame and wall

For site and facilities teams at buildings such as St John and St James CofE Primary School, gaps opened by contractors for new cabling are a common finding in schools and offices.

What your quote should include

  • What happens if they find a problem under the old sealant
  • Whether the sealant suits the joint
  • How the joint is cleaned and prepared
  • Which colour the sealant will be

10 questions to ask before you book

Looking after it afterwards

After the cure time, these simple habits help:

  • Include hidden areas like risers in routine checks
  • Don’t fill fire-stopping gaps with ordinary foam or silicone
  • Report cracked or damaged seals as soon as you notice them
  • Allow for resealing whenever new services are run

Include fire stopping in your regular building checks. Look for cracks, gaps or sealant that has been cut or pulled out and get them seen to.

A gap left open in a fire-resisting wall or floor lets smoke spread in ways the building wasn’t designed for. Closing it is generally a straightforward job.

Landlord and commercial work in Upper Edmonton

A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.

Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.

The process

When we arrive, we start by going over the job with you. We protect the surfaces around the joints before any work begins. The work normally takes 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 Upper Edmonton. It helps if you can point us to a visitor permit or a bay close to the door.

  1. First we work through your list or survey, measuring each gap and checking what it’s formed in.
  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. The sealant goes in to the depth its detail sets, then it’s tooled off.
  5. Locations and products are noted so you have them on file.

Getting ready for the visit

  • Where the joints are inside, avoid wetting them before we arrive
  • Let us know if you’ve seen damp or leaks
  • Keep children and pets away from the work area

How to get a quote

It all starts with a short chat. Tell us what’s wrong, where it is and how much there is. Whenever you are ready, phone 0345 464 0079 or email us.

Get a quick quote

Related advice

What fire rated sealant looks like in Upper Edmonton

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 apply fire-rated sealant to the assessor’s or designer’s specification and the product’s tested details. Many London buildings have tight access and loading restrictions, and out-of-hours working is possible to arrange.

For landlords with property near Silver Street station, fire-rated sealant around pipes and cables through walls and floors needs making good whenever new services go through. For buildings such as St Mary's Church, gaps around pipes and cables are worth checking after any building work there.

Upper Edmonton is about 1 mile south of Edmonton, in Greater London. Jobs in Upper Edmonton get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. 764 places in Greater London are on our list, large and small. For nearby work, see our London page, about 8 miles away.

Here we cover the N18, N9 and N17 postcode area for fire rated sealant. Whether your property is on Bull Lane, Park Lane and York Road or anywhere close by, our applicators can take on the job. Neighbouring places we cover for fire rated sealant include Northumberland Park (1 mile south-east), Edmonton (1 mile north), Picketts Lock (2 miles north-east), South Chingford (2 miles east) and Winchmore Hill (2 miles north-west). Within a short drive, we also cover London (8 miles south), City of Westminster (8 miles south-west), Marylebone (8 miles south-west), Kensington (10 miles south-west), St Pancras (6 miles south) and Shoreditch (6 miles south).

What’s near Upper Edmonton

We work in homes and buildings around Pymmes Park, Tottenham University Technical College and London Academy of Excellence Tottenham and the streets around them. There’s a railway station in Upper Edmonton itself: Silver Street station. Nearby you will also find North Middlesex University Hospital (less than half a mile west) and Broomfield House Museum (2.2 miles west). Green spaces nearby include Pole Hill and Highams Park Lake.

Map of Upper Edmonton © OpenStreetMap contributors

Upper Edmonton: your questions answered

Can you help a landlord with a rental near Silver Street station?

Yes, landlords and agents are among the people we work for. Just call 0345 464 0079 or drop us an email with the address and what needs doing, and we will give you a clear price.

Can parking be tricky for a visit in Upper Edmonton?

In much of London, parking needs planning: a visitor permit or a nearby bay makes the day run more smoothly, so mention what’s available when you book.

Can you tell me how many minutes the seal will last?

We don’t certify fire stopping or quote ratings. We apply the specified product to the manufacturer’s details and giving you a record of where it went.

Can you fill the gap behind a fire door frame?

Yes. We seal the gap between the frame and the wall with a suitable fire-rated product. The door, its seals and closer are for a door specialist.

Can I add another job to the visit?

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

Do you take out the old sealant first?

Yes. All of the old material is cut out and the joint cleaned before applying anything new.

What sealant do you use?

Each joint gets the product that suits it. Movement, water and weather all affect the choice.

Do you offer different sealant colours?

Yes. Sealants come in white, clear, grey and other colours for many products, and we agree the colour with you before any work starts.

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