Wokingham · England

Fire Rated Sealant in Crowthorne

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

  • Door frames with gaps between frame and wall
  • Sealant items on a fire risk assessment action list
  • Seals cut through by electricians, plumbers or data installers

Book fire rated sealant in Crowthorne

How the job changes by surface

Masonry and concrete

Holes through concrete and block are rarely neat. We measure the gap at its widest point to make sure it suits the product.

Linear gaps

A linear joint may need to allow for movement as well as fire. The product and depth are chosen to suit both, following the tested detail.

Fire rated sealant for homes and businesses in Crowthorne

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. We work on door frames, flats & HMOs and linear gaps, and people most often call us about joints picked up in a fire-stopping survey and gaps filled with a product that isn’t fire-rated.

Shared washrooms take far more use than a home bathroom, and their sealant shows it, while fire-rated sealant has to be made good whenever new pipes or cables go through. For a building in Crowthorne, we plan timings around how it’s used.

We stand behind the work with a one-year guarantee, so you are not left on your own once the job is done.

The Mr Mastic team in navy uniforms in front of three Mr Mastic vans
Where
Crowthorne (RG45, RG40)
Wider area
Wokingham
Cover
One year on every job
Quotes
A clear price before work begins
Phone
0345 464 0079
Last updated
26 October 2026

Aftercare tips

No joint lasts for ever, but care makes a real difference. Our tips:

  • Never patch a fire seal with standard sealant
  • Flag any open gap you spot round a pipe or cable
  • Keep the record of products and locations with your fire safety documents
  • Check risers, ceiling voids and cupboards during building checks

Avoid covering a sealed gap with anything that is not part of the tested detail. Repairs should use a matching fire-rated product. We can tell you which product we used.

An open gap isn’t only a fire issue: noise, draughts and even pests can come through too. Dealing with them early helps with all of these.

Questions from Crowthorne

I let a flat near Crowthorne station. Can you help?

Yes. We work for landlords and letting agents as well as householders, and several properties can be quoted together. You can ring 0345 464 0079 or drop us an email with the details for a clear quote.

Can you do fire rated sealant in Crowthorne?

Yes, Crowthorne is within the area we cover. We work across London and the South East. Just call 0345 464 0079 or drop us an email with a few details of the job, and we will send you a clear quote.

Are you an approved applicator?

Yes. We are approved under the ARBOMaster scheme, which is run for the Arbo sealant brand.

Will you assess my building’s fire safety?

No. Your fire risk assessor, designer or building control decides that. Our job is applying the sealant to their specification.

Where are you based?

We are based in Crawley, West Sussex, and we cover South East England, London and all of Scotland.

Do you do fire sealant around door frames?

Yes. We often seal open gaps hidden behind the architrave. Doors, seals and closers need a door specialist.

Do you have insurance?

Yes. Full insurance covers our work, and we can confirm the details when we quote.

Do you certify the fire stopping?

We don’t issue ratings or certificates ourselves. What’s required is set by your assessor or designer, and the product’s tested details show what it achieves.

The process

We keep the work tidy and contained to the joints we are treating, so you can get on with your day. Expect the work to take anything from a few hours to several days, depending on how many gaps there are, and we tell you how long to leave it before we go. In Crowthorne, parking is rarely complicated, though it helps to know about driveways or restrictions, and mention if the work is upstairs, in a flat or high on the outside.

  1. Access to each area is agreed so the work can run in order.
  2. We take out any damaged or unsuitable sealant.
  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. We record what was done and flag anything that needs a different system.

Before we arrive

  • Tell us if parking is tricky
  • Mention any sign-in or site rules at work premises
  • Keep children and pets away from the work area

Ask for a quote

To get a quote, call 0345 464 0079 or drop us an email with the location and a short description of the problem. We’ll give you a clear quote before any work starts.

Get a price

Related advice

Why deal with it now?

For some gaps, sealant isn’t the right answer and another system is needed. Large holes, cable bundles and plastic pipes can call for batts, collars or wraps. If a gap isn’t suitable for sealant, we will tell you. Gaps in sealant and mould in the bead never get better on their own, and in a busy household in Crowthorne they spread with every shower and every downpour. Replacing the sealant now is the simplest fix.

Leaving a failed joint usually makes the job bigger, not smaller, as water and mould keep getting in. If you’re not sure whether it needs doing, call 0345 464 0079 or send us an email and we’ll give you an honest view and a quote.

Why us?

  • Trusted Arbo and Everbuild sealants
  • Every job guaranteed for a year
  • 4.9 on Google from 180+ five-star reviews
  • Old sealant always removed completely

Read how sealant jobs are priced or customer reviews.

How we quote for fire rated sealant

We do not publish a price list, because no two jobs are the same. The quote depends on:

  • How much old sealant there is and how hard it is to remove
  • Whether there’s mould to deal with
  • The product the joint needs
  • The number and length of the joints

Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs, plus any working-time requirements on site. Ask us for a quote and we will explain what it covers.

Helping us quote

What to tell us when you ask for a quote:

  • The address or postcode of the job
  • What the problem is, such as mould, gaps, leaks or cracking
  • The rough size of the job
  • Any access issues, like height or stairs

The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and email pictures if that is easy.

What fire rated sealant looks like in Crowthorne

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’re given, installing the product to its tested details.

If you look after a church, hall or community building such as Crowthorne Methodist Church, gaps around pipes and cables are worth checking after any building work there. For site and facilities teams at buildings such as Crowthorne Church of England Primary School, service openings in fire-resisting walls need checking after any refurbishment. Rented homes near Crowthorne station change hands often, and new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant.

Crowthorne is about 3 miles south-west of Bracknell, in Wokingham. Jobs in Crowthorne get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. Our Wokingham coverage runs to 35 places, Crowthorne among them. Reading is on our list too, about 9 miles from Crowthorne.

Every address in RG45 and RG40 is covered for fire rated sealant, from the main roads to the quietest streets. Fire rated sealant is available to properties on Church Road East, Church Road West and High Street. Main roads around Crowthorne include the A321 and B3348, which makes travel easy. We also cover the places around Crowthorne: Owlsmoor (1 mile south-east), Home Farm (1 mile north-east), Wooden Hill (2 miles north-east), Sandhurst (2 miles south) and Hanworth (2 miles north-east). Within a short drive, we also cover Reading (9 miles north-west), Wokingham (3 miles north-west), Woodley (7 miles north-west), Earley (7 miles north-west), Lower Earley (6 miles north-west) and Winnersh (5 miles north-west). Crowthorne is one of the larger places we cover in Wokingham.

What’s near Crowthorne

We work in homes and buildings around King Edward VI Aston School, The Prince pub and Edgbarrow Woods and the streets around them. The nearest railway station is Crowthorne station, about 1 mile south-west. Nearby you will also find The Lexicon (3.7 miles north-east) and Pinewood Hospital (0.9 miles north). Open spaces near Crowthorne include Wildmoor Heath and Heath Lake.

Map of Crowthorne © OpenStreetMap contributors

Work for landlords, hotels and businesses

For anyone letting property in or around Crowthorne, several properties can go on one quote. Send us the addresses and the work at each, and pictures by email help.

Landlords and letting agents in Crowthorne can book us as well as householders. Resealing between tenancies is a simple way to keep a property in good order.

What sealant work cannot fix

Sealant is not the answer to every problem, and we’ll tell you before work begins. It will not solve:

  • Assessing a building’s fire safety
  • Certifying a building or signing off its fire safety
  • Big openings where sealant alone isn’t the tested solution

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

What we seal

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