Slough · England

Fire-rated sealant in Slough

Fire rated sealant across Slough and nearby, with old sealant always removed completely and a 12-month guarantee.

  • Fire seals that have cracked with movement
  • New service routes left unsealed after building work
  • Gaps flagged on a fire risk assessment

Need fire rated sealant in Slough?

Fire rated sealant in Slough

A fire seal relies on being installed the way it was tested: the right depth, the right backing and the right product for the substrate. That’s the part we focus on, one gap at a time. If you have open joints along the top of partitions and seals cut through by electricians, plumbers or data installers, we can help, on plasterboard & masonry, service penetrations and door frames alike.

A place the size of Slough has offices, shops, hotels and schools, all with washrooms, kitchens and service openings that need the right sealant. Our work covers washroom and kitchen sealant as well as fire-rated sealant, fitted to the product’s tested details.

Each job carries a 12-month guarantee, large or small.

Eleven members of the Mr Mastic team standing in front of branded white vans
Where
Slough (SL1, SL3, SL2, SL6)
Region
Slough
Guarantee
One year on every job
Quotes
A clear quote up front
Telephone
0345 464 0079
Page updated
26 October 2026

What fire rated sealant looks like in Slough

There are hotels and other places to stay in and around Slough. For hotels, a room-by-room programme keeps most rooms in use while the work goes on. 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.

If you look after a church, hall or community building such as St Michael and All Angels, gaps around pipes and cables are worth checking after any building work there. If you look after a building such as Herschel Grammar School, fire-stopping around service openings should be restored whenever new services go in.

Slough is about 22 miles west of London, in Slough. Across the SL1 area, we can carry out fire rated sealant at your property. We cover 31 towns and villages across Slough, large and small. For nearby work, see our Reading page, about 17 miles away.

Work in SL1, SL3, SL2 and SL6 works the same way as everywhere else we cover. Local streets include High Street, Station Road and London Road, and we cover them all. With the A4 and A332 close by, Slough is simple for us to get to for fire rated sealant. Neighbouring places we cover for fire rated sealant include Chalvey (1 mile south), Cippenham (1 mile west), Britwell (1 mile north-west), Farnham Royal (2 miles north) and Huntercombe (2 miles west). We also work in nearby towns such as Datchet (3 miles south-east), Farnham Common (3 miles north), Poyle (5 miles south-east) and Colnbrook (4 miles south-east).

Landmarks near Slough

Around Slough, our work takes us to homes and buildings near Westgate School, Herschel Park and The Moon and Spoon pub, among other places. For rail, the closest station is Slough station, about 0.7 miles east of the centre. Nearby you will also find Upton Hospital (0.9 miles south-east) and Windsor Castle (2.1 miles south). Not far away are Taplow Lake and Burnham Beeches.

Map of Slough © OpenStreetMap contributors

The process

On the day, we start by going over the job with you, so you know exactly what we are doing. Surfaces next to the work are protected before work begins. Most jobs take from a few hours to a few days, depending on the number of gaps and the access. In central Slough, parking can be tight, so tell us about driveways, permits or nearby car parks. For flats, mention stairs, lifts and shared entrances as well.

  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. Any non-fire-rated filler is removed.
  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.

Getting ready for the visit

  • Mention any leaks or damp you’ve noticed
  • Clear the area around the work
  • For business premises, tell us about site rules or sign-in

Get a quote

The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is.

Get a price

Read more

How the job changes by surface

Masonry and concrete

Masonry is dusty and porous, so preparation matters. The gap is cleaned and backed where required.

Plasterboard walls

Service holes in plasterboard are often rough and oversized. Gaps that are too big for sealant alone need a different detail, and we’ll tell you.

Do you need fire rated sealant in Slough?

Sometimes the wrong product was used from the start: ordinary expanding foam, standard silicone or decorators’ caulk in a place that needed a tested fire seal. It looks sealed, but it isn’t fire-rated.

Look out for these signs:

  • Sealant items on a fire risk assessment action list
  • Fire seals that have cracked with movement
  • New service routes left unsealed after building work
  • Unsealed gaps where pipes and cables go through a wall

For landlords with property near Slough station, fire-rated sealant around pipes and cables through walls and floors needs making good whenever new services go through.

Before you book anyone

  • How the colour is chosen
  • How much experience the applicator has
  • How long to leave it before use
  • What guarantee comes with the work

How to choose a mastic man

Should I try it myself first?

The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.

A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so tell us about it when you ask for a quote.

Quotes for fire rated sealant in Slough

Every job gets its own quote. These are the things that affect it:

  • How much old sealant there is and how hard it is to remove
  • Mould in or behind the old joints
  • The number of rooms or windows
  • Access and height

There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please ring 0345 464 0079 or email us.

Helping us quote

When you contact us, these details help:

  • Pictures of the joints, sent by email
  • Access, such as stairs, a lift or height
  • Any previous sealing or DIY work
  • The rough size of the job

If you are in Slough and need fire rated sealant, phone 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.

Questions from Slough

Do you work in hotels near Slough?

Yes, hospitality work, including hotels, is part of what we do. Jobs can be programmed room by room, with out-of-hours working possible to arrange.

Can you help a landlord with a rental near Slough station?

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

What sealant do you use?

The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.

Where is Mr Mastic based?

Our base is in Crawley, and we cover South East England, London and all of Scotland.

Can you fill the gap behind a fire door frame?

Yes. The joint between frame and wall is sealed with a fire-rated sealant following the tested details. The door, its seals and closer are for a door specialist.

Is intumescent sealant the same as fire-rated sealant?

Intumescent describes a material that swells in heat. Intumescent sealants are a type of fire-rated sealant, and the choice depends on the gap.

Does someone need to be in?

That depends on where the joints are. Inside work needs someone to give us access, while outside work can sometimes be arranged differently.

Can you do several jobs on one visit?

Yes. Tell us about everything you’d like done and you’ll get one quote.

Why deal with it now?

If an assessor has flagged gaps, it makes sense to close them before the next review. Having them sealed and recorded now means you can show the action was taken. Busy buildings in Slough, from hotels to offices, cannot afford rooms out of use for leaks or mould, so it pays to replace failing joints before they get that far.

A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.

Why choose Mr Mastic in Slough

  • Experience in homes, commercial sites and hotels
  • Over 20 years’ experience
  • 4.9 on Google from 180+ five-star reviews
  • An ARBOMaster approved applicator

See what affects the cost or what customers say.

How to look after the new joints

A little care helps the new joints last. Our advice:

  • Include hidden areas like risers in routine checks
  • Ask every contractor to reseal any fire stopping they disturb
  • Ask which product was used before you paint
  • Take pictures of fire stopping before ceilings or boxing go back

Do not add foam, filler or ordinary sealant over a fire seal. Repairs should use a matching fire-rated product. Ask us if you are not sure which product was used.

Open gaps don’t only matter in a fire: noise, draughts and even pests can come through too. Sealing them early helps on every front.

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