Hampshire · England

Fire-rated sealant in Brook, Hampshire

Fire rated sealant across Brook and nearby, with old sealant always removed completely and a one-year guarantee.

  • Holes left by a change of layout
  • Open holes round services passing through fire walls
  • Standard silicone or caulk in a fire-stopping gap

Book fire rated sealant in Brook

Fire rated sealant for homes and businesses in Brook

We can work through a building room by room or floor by floor, noting the locations and products as we go. It gives you a list to keep with the building’s fire safety documents. If you are dealing with gaps flagged on a fire risk assessment and old fire sealant that has split or come away, we can put it right, whatever the surface.

If you have holiday lets, a converted barn used for business or a community building near Brook, washroom and kitchen sealant and any fire-rated joints need the same attention as anywhere.

You are covered for a year from the day we finish. If anything is not right with it, ring 0345 464 0079 or email us.

Eleven members of the Mr Mastic team standing in front of branded white vans
Location
Brook (SO43)
Region
Hampshire
Guarantee
12 months on all our work
Quotes
Quoted before any work starts
Phone
0345 464 0079
Updated
26 October 2026

How we quote for fire rated sealant

Every job gets its own quote. This is what makes a difference:

  • Access and height
  • The product the joint needs
  • The number of rooms or windows
  • The number and length of the joints

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

What to tell us for a quote

When you contact us, these details help:

  • How many joints, rooms or windows are involved
  • If it’s domestic, commercial or a hotel
  • Access, such as stairs, a lift or height
  • Where the property is

If you are in Brook and need fire rated sealant, phone 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and you will get a clear quote before we start.

Brook: your questions answered

Do you work for landlords with property near Ashurst New Forest station?

Yes, we work for letting agents and landlords. You can call 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before work begins.

Will you come out to Brook?

Yes, we do. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.

Can you seal over the old sealant?

No. New silicone will not bond to old silicone, and it traps any mould or water underneath. We remove it all first.

Will there be a smell?

It depends on the product. Some products have a noticeable smell, others very little, and any smell fades as they cure.

What sealant do you use?

We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference, and we’ll explain our choice.

Where are you based?

We work from Crawley. We cover Brook and the rest of Hampshire, along with the rest of our area.

Is it worth trying it myself?

Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.

What do you need from me for a quote?

Where the job is, what the problem is and roughly how big it is. If you can, email a few photos.

How the visit works

You don’t need to clear the whole room or building, only the area right around the joints. We protect the rest, and the job takes anything from a few hours to several days, depending on how many gaps there are in most cases. Somewhere like Brook needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.

  1. Before starting, we go through the specification or action list with you.
  2. We measure every gap and note what it’s in and what passes through.
  3. Unsuitable material such as ordinary foam or silicone is cut out and the faces 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 records.

How to prepare

  • On commercial sites, let us know about site rules
  • Mention any leaks or damp you’ve noticed
  • Keep pets and children clear of the area while we work

Ask for a quote

Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we will talk you through the work before giving you a price.

Get a price

Read more

What the job involves on each surface

Linear gaps

Some linear gaps have to cope with movement as well as fire. We choose a product and depth that suit the gap and the movement.

Flats and HMOs

Working in occupied flats needs some planning. Access to flats and common areas is agreed in advance to keep disruption down.

When to call us in Brook

Over time, buildings change layout and use. A house turned into flats or an HMO, or an office split into smaller units, brings new walls, new service routes and new gaps.

Keep an eye out for these signs:

  • Fire seals that have cracked with movement
  • Gaps flagged on a fire risk assessment
  • Open holes round services passing through fire walls
  • Fire stopping disturbed by later work

If you let a flat or house near Ashurst New Forest station, new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant.

Before booking anyone

  • What happens if the job turns out different
  • Are they insured?
  • How much experience the applicator has
  • How the colour is chosen

How to choose a mastic man

Fire rated sealant around Brook

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 apply fire-rated sealant to the assessor’s or designer’s specification and the product’s tested details.

Around Brook, as everywhere, fire rated sealant is only as good as the preparation behind it.

Brook is about 4 miles west of Totton, in Hampshire. Across the SO43 area, we cover fire rated sealant for homes and businesses. 683 places in Hampshire are on our list, from the larger towns to small villages. We also work in Southampton, about 9 miles from Brook.

Our applicators cover all of the SO43 postcode area for fire rated sealant. Close by, we work in Wittensford (1 mile east), Cadnam (1 mile east), Minstead (2 miles south), Newbridge (2 miles north-east) and Bramshaw (2 miles north). Larger places within reach include Eastleigh (12 miles east), Totton (4 miles east), Chandler's Ford (11 miles north-east), Hedge End (13 miles east), Lymington (12 miles south) and Romsey (7 miles north-east).

Near you in Brook

Around Brook, our work takes us to homes and buildings near Green Dragon Inn, among other places. The closest station to Brook is Ashurst New Forest station, about 4.2 miles south-east. Nearby you will also find Tatchbury Mount Hospital (3.5 miles east). Not far away are Copythorne Common.

Map of Brook © OpenStreetMap contributors

Why deal with it now?

Doing it once, properly, beats doing it twice. If the details weren’t followed, the seal may need redoing once someone inspects it. Around Brook, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.

Leaving a failed joint usually makes the job bigger, not smaller, as water and mould keep getting in. If you are not sure whether it needs doing, call 0345 464 0079 or email us for an honest opinion and a quote.

Why Brook customers choose us

  • Quality sealants from Arbo and Everbuild
  • Every job guaranteed for a year
  • We never seal over old sealant
  • 4.9 on Google from 180+ five-star reviews

Take a look at our cost guide and our reviews.

DIY sealant or a professional job?

Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.

Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.

What sealant work can’t fix

We’ll always be straight with you, so here’s what new sealant won’t do:

  • Big openings where sealant alone isn’t the tested solution
  • Problems with the door itself rather than the gap around the frame
  • Fire risk assessments, which need a qualified assessor

If you’re not sure, just ring 0345 464 0079 or drop us an email and we’ll give you a straight answer before you book.

Where we work in Brook

  • Service penetrations
  • Plasterboard & masonry
  • Linear gaps
  • Flats & HMOs
  • Door frames
  • Pipe & cable gaps
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job