Medway · England

Dunn Street Fire Rated Sealant

Intumescent and fire-rated sealant around gaps, frames and service penetrations for householders, landlords and businesses in Dunn Street. Fully insured, ARBOMaster approved and guaranteed for a year.

  • Linear gaps at the head of walls
  • Joints picked up in a fire-stopping survey
  • Old fire sealant that has split or come away

Fire rated sealant near Dunn Street

Fire rated sealant in Dunn Street

Ordinary silicone or decorators’ caulk in a fire-stopping gap isn’t a fire-rated seal. We cut out the wrong material and reseal with a fire-rated product tested for that kind of gap. Common call-outs are for sealant items on a fire risk assessment action list and unsealed gaps where pipes and cables go through a wall, on plasterboard & masonry, pipe & cable gaps and linear gaps.

For a small place like Dunn Street, the journey and timings are agreed in advance, so it can be fitted around guests, clients or events where possible.

All our work comes with a 12-month guarantee, wherever you are in Medway.

Mr Mastic applicators lined up beside the company vans, one holding a sealant gun
Place
Dunn Street (ME7)
Region
Medway
Cover
One year on every job
Price
A clear quote up front
Phone
0345 464 0079
Page updated
26 October 2026

Your questions about fire rated sealant in Dunn Street

Can you do fire rated sealant in Dunn Street?

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

Will you come out to Dunn Street?

Yes, we do. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.

Can ordinary silicone be used in a fire-stopping gap?

No. Standard sealants are not made or tested to stop fire. If it’s been used, we remove it and use the right product.

Will there be a smell?

Sometimes, a little. Any smell clears as the sealant cures.

Do you guarantee your work?

Yes. All our work carries a 12-month guarantee.

Can you quote for more than one area?

Yes. Just list everything you need and you’ll get one quote.

What’s the difference between intumescent and fire-rated sealant?

An intumescent material expands when it’s heated. Intumescent sealants are a type of fire-rated sealant.

Do I have to be there?

It depends on the job. For work indoors, someone needs to let us in, while outside work can sometimes be arranged differently.

What affects the cost of fire rated sealant

For a quick quote, just ask. The main things that affect it are:

  • The product the joint needs
  • How many areas need sealing
  • The size of the job
  • How much old sealant there is and how hard it is to remove

What you pay reflects the work, not guesswork. That is why we ask a few questions first.

What we need to know

You do not need to know the technical terms. Just tell us:

  • Photos by email, if that’s easy
  • How we’d reach the joints
  • Whether it has been sealed before
  • The address or postcode of the job

For fire rated sealant in Dunn Street, ring 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and you’ll get a clear quote before we start.

The process

Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. For most jobs that takes from a few hours to a few days, depending on the number of gaps and the access, and the area is left clean. Somewhere as small as Dunn Street, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  1. Before starting, we go through the specification or action list with you.
  2. Each gap is measured and its substrate and service noted.
  3. Unsuitable material such as ordinary foam or silicone is cut out and the gap cleaned.
  4. The specified fire-rated sealant goes in over any backing its detail requires.
  5. Every location is recorded with the product used for your files.

How to prepare

  • For business premises, tell us about site rules or sign-in
  • Tell us about any previous sealing or DIY attempts
  • Clear items away from the joints we’re working on

Ask for a quote

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.

Get a price

Advice

What the job involves on each surface

Masonry and concrete

Preparation counts on brick, block and concrete. We brush and vacuum the gap and use backing where the detail needs it before the sealant goes in.

Flats and HMOs

Converted houses often have gaps around old and new services. We seal the ones on your specification with a tested product.

For landlords and businesses

We also work for property managers and facilities teams in Dunn Street and across Medway. Several sites can go on one quote, and we are fully insured for the work.

In hotels, rooms out of use cost money, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.

When to call us in Dunn Street

A lot of fire stopping is out of sight: above ceilings, inside risers and behind panels. Out of view, damage sits unnoticed until someone inspects.

Signs it’s time to call us include:

  • New service routes left unsealed after building work
  • Unsealed gaps where pipes and cables go through a wall
  • Fire seals that have cracked with movement
  • Linear gaps at the head of walls

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

Before you book anyone

  • What happens if the job turns out different
  • Whether the sealant suits the joint
  • When the joint can take water or movement
  • What preparation is included

Choosing a sealant specialist

Why deal with it now?

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 sealing itself is often a contained piece of work. Where a wall is exposed, as many are in small places like Dunn Street, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.

What it costs depends on the amount of work, how hard the old material is to remove and access to the work. We give a clear quote before we start.

What you get with us

  • Approved under the ARBOMaster scheme
  • Full insurance on every job
  • Every job guaranteed for a year
  • 180+ five-star Google reviews

Read how sealant jobs are priced and our reviews.

DIY versus a professional finish

Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.

The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.

Fire rated sealant around Dunn Street

Workplaces and the common parts of blocks of flats in England need a fire risk assessment under the Regulatory Reform (Fire Safety) Order 2005, 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.

For buildings such as Church of St Peter, gaps around pipes and cables are worth checking after any building work there. If you let a flat or house near Rainham (Kent) station, any gap left by new services in shared walls should be closed with a fire-rated product.

Dunn Street is about 3 miles south-east of Chatham, in Medway. For fire rated sealant in and around Dunn Street, please phone 0345 464 0079 or send us an email for a quick quote. We cover Medway from our Crawley base, Dunn Street included. Dunn Street is one of 68 places in Medway we cover. For nearby work, see our Chelmsford page, about 29 miles away.

All of ME7 is within our area for fire rated sealant. If you’re just outside Dunn Street, we cover Lidsing (1 mile north-west), Bredhurst (1 mile north-east), Scragged Oak (1 mile south-east), Kemsley Street (1 mile north-east) and Lower Cox Street (1 mile south-east). Within a short drive, we also cover Gillingham (3 miles north), Chatham (3 miles north-west), Rochester (5 miles north-west), Rainham (3 miles north-east), Strood (6 miles north-west) and Luton (3 miles north-west).

Landmarks near Dunn Street

Around Dunn Street, our work takes us to homes and buildings near South Wood and The Harrow pub, among other places. For rail, the closest station is Rainham (Kent) station, about 3.3 miles north-east. Other landmarks nearby include KIMS hospital (2.8 miles south) and Allington Castle (3.4 miles south-west). Open spaces near Dunn Street include Boxley Hills and Burham Down.

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