Oxfordshire · England

Fire-rated sealant in Crawley, Oxfordshire

Fire rated sealant for Crawley and the surrounding area: careful preparation, the right product and tidy work. Call for a quick quote.

  • Linear gaps at the head of walls
  • Ordinary sealant used where a fire-rated product was needed
  • Open holes round services passing through fire walls

Trusted fire rated sealant in Crawley

Fire rated sealant for homes and businesses in Crawley

Landlords, managing agents and facilities teams use us for the sealant items on a fire risk assessment on buildings across Crawley. Send us the list or the survey and we will quote for the fire-rated sealant work on it. We work on pipe & cable gaps, door frames and plasterboard & masonry, and people most often call us about seals cut through by electricians, plumbers or data installers and gaps filled with a product that isn’t fire-rated.

For a small place like Crawley, the journey and timings are agreed in advance, so the job can fit around bookings, guests or opening times where possible.

Our work is backed for twelve months, and the guarantee is the same wherever you are.

The Mr Mastic team in navy uniforms in front of three Mr Mastic vans
Location
Crawley (OX29)
Wider area
Oxfordshire
Guarantee
One year on every job
Quotes
Quoted before any work starts
Phone
0345 464 0079
Page updated
26 October 2026

Crawley questions

Will you come out to Crawley?

Yes. Crawley is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.

Do you work in hotels near Crawley?

Yes, hotels and guest houses are among the places we work. A room-by-room programme keeps most rooms in use while the work goes on.

Will the old sealant be removed?

Yes, always, and completely. New sealant won’t bond properly to old, so any old material comes out before anything new goes in.

Can you fill the gap behind a fire door frame?

Yes. The joint between frame and wall is sealed with a fire-rated sealant. The door leaf and its hardware need a door specialist.

Do you provide details of the products used?

Yes. You get a list of where we worked and what we used.

Do you offer different sealant colours?

Yes. Sealants come in white, clear, grey and other colours for many products, and we’ll agree it with you first.

Will it make a mess?

Not at all. The area is protected while we work and cleaned up afterwards.

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

No. Where a fire-rated seal is needed, it has to be a product tested for that use fitted to the maker’s details.

What we do, step by step

At the end, we look at the finished work together and tell you how long to leave it. The work normally takes a few hours for a handful of gaps, and longer for a whole building, depending on the amount of work. For a village or hamlet like Crawley, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.

  1. Access to each area is agreed so the work can run in order.
  2. We take out any damaged or unsuitable sealant.
  3. Gaps are cleaned of dust and loose material.
  4. The fire-rated or intumescent sealant is applied and tooled to the tested detail.
  5. Locations and products are written up and any gaps unsuitable for sealant are flagged.

Preparing for the visit

  • Try not to wet indoor joints just before the visit
  • Tell us about any water getting in
  • Move anything stored near the joints

How to get a quote

For a quick quote, get us on the phone, or email us if that’s easier. Describe what needs sealing and we will explain what’s involved before giving you a price.

Get a price

Related advice

When something else is needed

In fairness, there are a few things sealant won’t fix:

  • Fire doors that need new seals, closers or hardware
  • Deciding what fire stopping a building needs
  • Construction that does not provide fire resistance on its own

Not sure which it is? You can call 0345 464 0079 or email us and we will tell you honestly.

Joints and surfaces we work on

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

Keeping the joints in good condition

Simple care keeps the joints in good condition. We recommend:

  • Report cracked or damaged seals as soon as you notice them
  • Store the list of sealed gaps with your building paperwork
  • Include hidden areas like risers in routine checks
  • Never patch a fire seal with standard sealant

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

It’s easiest to seal gaps while they’re few and easy to reach. Over time, more work adds more holes.

Landlords, agents and businesses in Crawley

For anyone letting property in or around Crawley, several properties can be quoted together. Send us the addresses and the work at each.

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

Commercial buildings in Crawley

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 work to the specification you are given, installing the product to its tested details. Crawley has hotels and guest accommodation in and around it. Hotel work can be planned room by room, with out-of-hours working where needed.

For landlords with property near Finstock station, new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant. If you look after a church, hall or community building such as Church of St John the Evangelist, older buildings that have had new heating or wiring often have service gaps worth checking. Schools such as Hailey Church of England Primary School are buildings too, and fire-stopping around service openings should be restored whenever new services go in.

Crawley is about 1 mile north-west of Witney, in Oxfordshire. From the centre of Crawley to the outskirts, fire rated sealant is available for homes and businesses alike. Our Oxfordshire coverage runs to 443 places, Crawley among them. Our Oxford page covers work nearby.

We cover every part of OX29 for fire rated sealant. Local streets include Witney Hill, Farm Lane and Foxburrow Lane, all of which we cover. Other places close to Crawley include Leafield (2 miles north-west), Swinbrook (4 miles west), Ascott d'Oyley (4 miles north-west), Ascott-under-Wychwood (5 miles north-west) and Ascott Earl (5 miles north-west). Further out, we also cover Oxford (12 miles east), Abingdon-on-Thames (13 miles south-east), Carterton (5 miles south-west), Wantage (15 miles south), Grove (14 miles south) and Faringdon (11 miles south).

Near you in Crawley

We work in homes and buildings around Wood Green School and The Lamb Inn, among other places. Crawley’s nearest station is Finstock station, roughly 3.6 miles north-east of the centre. Other landmarks nearby include Cogges Manor Farm Museum (1.9 miles south-east). Not far away are Blenheim Farm.

Map of Crawley © OpenStreetMap contributors

Surface by surface

Service penetrations

Pipes, cables and ducts passing through fire-resisting walls and floors each leave a gap. The sealant is chosen for what passes through and how wide the gap is.

Door frames

Our work is the joint between frame and wall. Doors, seals and closers are for a door specialist and we will mention anything we notice.

Can I do it myself?

The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.

Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.

What affects the quote in Crawley

Call for a quick quote. The main things that affect it are:

  • The old material and how stubborn it is
  • The type of sealant required
  • Working hours on commercial sites
  • How many rooms, windows or areas are involved

Combining jobs into one visit usually makes better use of the time than several visits. You’ll get one clear quote for the whole job.

What we need to know

Before you ask for a quote, have a think about:

  • Whether it has been sealed before
  • Any access issues, like height or stairs
  • Whether it’s a home or a business
  • Pictures of the joints, sent by email

It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will talk you through what we’d do. Whenever you are ready, ring 0345 464 0079 or send us an email.

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