Greater London · England

Fire-rated sealant in Bow, Greater London

We cover Bow for intumescent and fire-rated sealant around gaps, frames and service penetrations. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.

  • Door frames with gaps between frame and wall
  • Old fire sealant that has split or come away
  • Open joints along the top of partitions

Book fire rated sealant in Bow

Fire rated sealant for homes and businesses in Bow

A gap around a door frame, a linear joint at the head of a wall and a hole round a pipe are each sealed differently. Measuring the gap and checking what it’s made of comes first, then apply it to the depth its tested detail calls for. We’re often asked to deal with ordinary sealant used where a fire-rated product was needed and linear gaps at the head of walls, on door frames, plasterboard & masonry and service penetrations.

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 Bow needs to stay open, work can be planned outside normal hours.

The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.

The Mr Mastic team in navy uniforms in front of three Mr Mastic vans
Place
Bow (E3)
Region
Greater London
Guarantee
12 months on all our work
Price
Quoted before any work starts
Telephone
0345 464 0079
Last updated
26 October 2026

How to look after the new joints

Good habits help new joints last longer. A few tips:

  • File the fire-stopping record where your assessor can find it
  • Ask which product was used before you paint
  • Include fire stopping when you schedule refits
  • Ask every contractor to reseal any fire stopping they disturb

Follow the cure time we give you before decorating over the sealant. Some fire-rated sealants can be painted and some can’t.

Open gaps do not only matter in a fire: they also let noise, draughts and sometimes pests through. Dealing with them early helps with all of these.

Surface by surface

Service penetrations

Pipes, cables and ducts passing through fire-resisting walls and floors each leave a gap. We seal it with a product tested for that service and gap size.

Masonry and concrete

Core-drilled and broken-out holes in concrete are often irregular. We check the gap size around the service against the product’s tested range.

Landlord and commercial work in Bow

Letting agents often deal with us directly. Tell us the address, the job and how access works and we’ll quote.

We work for landlords and letting agents as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.

What happens on the day

You don’t need to clear the whole room or building before we come, just the space around the work. Everything nearby is protected, and the work takes from a few hours to a few days, depending on the number of gaps and the access for a typical job. In Bow, as in most of London, parking needs a little planning. A visitor permit or a nearby bay makes the visit run more smoothly.

  1. We plan the order of work and access, floor by floor or flat by flat.
  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.

Before we arrive

  • Mention any parking rules near the property
  • Let us know about stairs, lifts or work at height
  • Keep children and pets away from the work area

Get a quote

Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we’ll talk you through the work before giving you a price.

Get a price

Advice

Bow questions

Can parking be tricky for a visit in Bow?

Parking in Bow, as in most of London, takes a little planning: a visitor permit or a nearby bay makes the day run more smoothly, so mention what’s available when you book.

Can you help a landlord with a rental near Hackney Wick station?

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

Can you match the sealant colour?

Yes. White, clear and grey are common, and other colours are available, and we agree the colour with you before work begins.

Can you work in occupied buildings?

Yes. We regularly work in flats, HMOs, schools and offices while they’re in use and we plan access around the people using them. Early starts or out-of-hours work can be arranged if that suits the building.

Is it messy?

No. We protect the surfaces around the joints, and we tidy up before we go.

Which products do you use?

Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference.

Can I do it myself?

Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.

What fire rating will the seal have?

We do not issue ratings or certificates ourselves. The performance comes from the product’s tested details and the specification from your assessor or designer; we install to those details and record what we did.

What sealant work can’t fix

We’d rather tell you now than do work that will not last, so these are the limits:

  • Large holes that need a different fire-stopping system
  • Certifying a building or signing off its fire safety
  • Walls or floors that weren’t built to resist fire

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

Surfaces we seal

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

What affects the quote in Bow

We don’t publish a price list, because no two jobs are the same. The quote depends on:

  • How many rooms, windows or areas are involved
  • Working hours on commercial sites
  • Whether old sealant or filler has to be cut out
  • Which sealant suits the joint

Every job is a little different, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all play a part, and we will explain the quote if you ask.

Helping us quote

Before you ask for a quote, have a think about:

  • How many joints, rooms or windows are involved
  • Whether it’s a home or a business
  • What’s wrong with the joints now
  • A few pictures by email, if you can

Want a quote for fire rated sealant? Please phone 0345 464 0079 or drop us an email with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.

What happens if it’s left?

Paying for fire stopping that has to be redone is a false economy. Work that does not follow the tested detail may have to come out again when the building is next checked. In a London flat, a failed joint rarely stays your problem alone: water from a shower or window joint can reach the flat below, and gaps in fire-stopping matter to everyone in the building.

Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs. Call for a quick quote and we will explain what it covers.

Why book with us

  • 4.9 on Google from 180+ five-star reviews
  • We leave the area clean and tidy
  • ARBOMaster approved applicator
  • Trusted Arbo and Everbuild sealants

See our cost guide and customer reviews.

What fire rated sealant looks like in Bow

Bow has hotels and guest accommodation in and around it. Hotel work can be planned room by room, with out-of-hours working 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, 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.

Community buildings like St Paul Old Ford are part of the picture too: older buildings that have had new heating or wiring often have service gaps worth checking. Bow is in London, so parking needs planning: let us know about parking bays, permits or a driveway. Managing a site like Old Ford Primary - A Paradigm Academy? Then fire-stopping around service openings should be restored whenever new services go in.

Bow is about 1 mile south-east of Hackney, in Greater London. Every kind of property in Bow can book us for fire rated sealant. The work is guaranteed for a year. Bow is one of 764 towns and villages in Greater London we cover for fire rated sealant.

Our applicators cover all of the E3 postcode area for fire rated sealant. We cover properties on Trellis Square, Sheffield Square and Bromley High Street. With the B142 close by, Bow is simple for us to get to for fire rated sealant. Neighbouring places we cover for fire rated sealant include Donnybrook Quarter (1 mile north), Old Ford (1 mile north-east), Mile End (1 mile south), Fish Island (1 mile north) and Bromley (1 mile south-east). We also work in nearby towns such as London (4 miles south-west), City of Westminster (6 miles west), Marylebone (5 miles west), Kensington (8 miles west), St Pancras (4 miles west) and Walthamstow (4 miles north).

What’s near Bow

In Bow, that means homes and buildings near Lord Tredegar Public House, Grove Hall Park and Mulberry UTC, among other places. The closest station to Bow is Hackney Wick station, about 0.9 miles north of the centre. A little further out are V&A East (0.9 miles north-east) and St Clement's Hospital (under half a mile south). The countryside around Bow includes Hollow Pond and Old Ford Island.

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