Bracknell Forest · England

Fire-rated sealant in Sandhurst, Bracknell Forest

Our applicators work in Sandhurst on intumescent and fire-rated sealant around gaps, frames and service penetrations. Old sealant removed completely, joints prepared properly and a one-year guarantee.

  • Gaps where walls meet ceilings or slabs
  • Holes left by a change of layout
  • Ordinary sealant used where a fire-rated product was needed

Need fire rated sealant in Sandhurst?

Fire rated sealant in Sandhurst, done properly

Filling a fire-stopping gap with standard silicone or caulk doesn’t make it fire-rated. We cut out the wrong material and the gap is resealed with a product tested for that use. If you are dealing with open gaps behind door architraves and unsealed gaps where pipes and cables go through a wall, we can help.

For anyone managing a school, care home, pub or office in Sandhurst, the sealant in its washrooms and kitchens, and the fire-rated joints around its pipework, all need looking after. Work can be planned around opening hours where needed.

There’s a 12-month guarantee on every job, large or small.

Eleven members of the Mr Mastic team standing in front of branded white vans
Where
Sandhurst (GU47, GU15)
Region
Bracknell Forest
Cover
A year, on every job
Quotes
A clear price before any work starts
Telephone
0345 464 0079
Last updated
26 October 2026

How it works

We bring everything the job needs with us, so there’s nothing for you to buy. Once we have agreed what’s being done, we protect the area and start. It normally takes anything from a few hours to several days, depending on how many gaps there are. In Sandhurst, parking is rarely complicated, though it helps to know about driveways or restrictions, and let us know if the work is upstairs, in a flat or up high outside.

  1. We go through the gaps on your list or survey and check each one’s size and substrate.
  2. Old or unsuitable sealant is cut out and the gap cleaned.
  3. Where the tested detail needs backing or fill, we fit it.
  4. The sealant goes in to the depth its detail sets, then it’s tooled off.
  5. Finally, we list where we worked and what we used, for your records.

Getting ready for the visit

  • Clear items away from the joints we’re working on
  • For business premises, tell us about site rules or sign-in
  • Keep children and pets away from the work area

Ask for a quote

Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we will explain how we’d tackle it. When it suits you, call 0345 464 0079 or drop us an email.

Ask for a quote

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How to look after the new joints

After the cure time, these simple habits help:

  • Photograph sealed gaps before they’re covered up
  • Keep general-purpose foam and caulk away from fire-stopping gaps
  • Ask which product was used before you paint
  • File the fire-stopping record where your assessor can find it

Do not drill through or remove a fire seal without putting it back properly. If you need new services through a sealed wall, plan the fire stopping as part of the job.

Open gaps do not only matter in a fire: they also let noise, draughts and sometimes pests through. Sealing them early helps on every front.

Common questions in Sandhurst

Do you work for landlords with property near Sandhurst station?

Yes, we work for landlords and agents. Just phone 0345 464 0079 or drop us an email and tell us about the property, and we will give you a clear price.

Can you do fire rated sealant in Sandhurst?

Yes. Our work covers London and the South East, and Sandhurst is part of that. You can call 0345 464 0079 or send us an email and let us know what needs doing, and we’ll give you a clear price.

Do the sealants smell?

That depends on the sealant. Some smell for a while, some hardly at all, and any smell fades as they cure.

Is standard sealant good enough for a fire gap?

No. Standard sealants are not made or tested to stop fire. We cut it out and reseal with a fire-rated product.

Will the old sealant be removed?

Yes. We cut out all the old sealant and clean the joint before applying anything new.

Where do you work from?

Our base is in Crawley, and we work across South East England, London and Scotland.

Can I add another job to the visit?

Yes. More than one area can be quoted together.

Is the work guaranteed?

Yes, for a year. If anything is not right with the work within the year, let us know and we’ll sort it.

When it isn’t the sealant

To be straight with you, there are a few things sealant won’t fix:

  • Openings too large for sealant, which need batts, boards or another system
  • Construction that doesn’t provide fire resistance on its own
  • Certifying a building or signing off its fire safety

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

Surfaces we seal

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

Why act early in Sandhurst

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 work involved is often modest. Gaps in sealant and mould in the bead never get better on their own, and in a busy household in Sandhurst they spread with every shower and every downpour. Replacing the sealant now is the simplest fix.

The cost reflects the work involved, not a rough estimate. That’s why we ask a few questions first and agree the price before starting.

Why Sandhurst clients choose us

  • Every job guaranteed for a year
  • Domestic, commercial and hotel work
  • An ARBOMaster approved applicator
  • We leave the area clean and tidy

See our cost guide or customer reviews.

Landlords, agents and businesses in Sandhurst

Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.

Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.

DIY sealant or a professional job?

The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions.

A careful DIYer can reseal a simple joint, 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.

Surface by surface

Linear gaps

Linear gaps run along the head of walls, at floor edges and between panels. We seal them to the tested detail, with backing where it’s needed.

Door frames

Behind most architraves is a gap between frame and wall. Where it’s open, we seal it to the product’s details for that gap size.

Commercial buildings in Sandhurst

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 work to the specification you are given, installing the product to its tested details.

For site and facilities teams at buildings such as Sandhurst School, service openings in fire-resisting walls need checking after any refurbishment. Rented homes near Sandhurst station change hands often, and new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant. For buildings such as St George's Church, service openings in its walls need the right fire-rated sealant, as in any building.

Sandhurst is about 3 miles north-west of Camberley, in Bracknell Forest. From the centre of Sandhurst to the outskirts, we cover fire rated sealant for every kind of property. Our Bracknell Forest coverage runs to 41 places, and Sandhurst is one of them. Our Reading page covers work nearby, about 11 miles away.

Our applicators cover all of the GU47 and GU15 postcode area for fire rated sealant. That includes homes and businesses on Church Road, Chapel Square and High Street. You will find Sandhurst on the A321 and A3095, so it’s easy for us to get to with everything needed for fire rated sealant. We also cover the places around Sandhurst: Owlsmoor (1 mile north), College Town (1 mile south-east), Blackwater (1 mile south), Frogmore (1 mile south-west) and York Town (1 mile south-east). Within a short drive, we also cover Bracknell (5 miles north), Wick Hill (5 miles north), Priestwood (5 miles north), Lawrence Hill (6 miles north), Binfield (5 miles north) and Quelm Park (6 miles north). Sandhurst is among the bigger towns we cover in Bracknell Forest.

Near you in Sandhurst

We work in homes and buildings around The Wellington Arms, College Town Primary School and Sandhurst Memorial Park. The closest station to Sandhurst is Sandhurst station, about 0.8 miles west. Other landmarks nearby include Pinewood Hospital (2.5 miles north) and Staff College Museum (1.7 miles east). For a walk, there’s Wildmoor Heath and Horseshoe Lake.

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