West Dunbartonshire · Scotland

Fire-rated sealant in Dalmonach, West Dunbartonshire

Intumescent and fire-rated sealant around gaps, frames and service penetrations for Dalmonach, backed by a 12-month guarantee. Call for a quick quote.

  • Fire seals that have cracked with movement
  • Sealant items on a fire risk assessment action list
  • Gaps filled with a product that isn’t fire-rated

Need fire rated sealant in Dalmonach?

How we handle fire rated sealant in Dalmonach

Until it’s heated, intumescent sealant behaves like an ordinary sealant; in a fire it expands into the joint. Which product suits a gap depends on its width, the materials either side and what runs through it, so we work to the manufacturer’s details. Typical jobs include open holes round services passing through fire walls and linear gaps at the head of walls, on plasterboard & masonry, door frames and service penetrations.

For holiday lets, guest houses and community buildings in or near Dalmonach, the washrooms and kitchens need the same care as any city building, and fire-rated joints should be kept in good order.

We guarantee the work for a year. If something isn’t right with it in that time, tell us and we’ll put it right.

The Mr Mastic team in navy uniforms in front of three Mr Mastic vans
Where
Dalmonach (G83)
Region
West Dunbartonshire
Cover
One year on every job
Price
A clear quote up front
Email
info@mrmastic.co.uk
Updated
26 October 2026

Work for landlords, hotels and businesses

In hotels, rooms out of use cost money, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.

Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.

Different surfaces, different methods

Door frames

Frame gaps are usually hidden behind the architrave. Where it’s open, we seal it to the product’s details for that gap size.

Plasterboard walls

Plasterboard partitions are common in flats, offices and conversions. The sealant has to be one tested in plasterboard for each gap size.

How we quote for fire rated sealant

Some jobs are bigger than they look, and some smaller. What affects the quote:

  • Working hours on commercial sites
  • Mould in or behind the old joints
  • The product the joint needs
  • How many rooms, windows or areas are involved

The cost depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. You’ll have a clear quote before any work starts, so you know where you stand.

Helping us quote

The more you tell us, the more accurate the quote. When you ask for a quote, tell us:

  • What the problem is, such as mould, gaps, leaks or cracking
  • Any access issues, like height or stairs
  • A few photos by email, if you can
  • The address or postcode of the job

The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.

Aftercare tips

Looking after new joints is easy:

  • Ask every contractor to reseal any fire stopping they disturb
  • Get damaged fire seals looked at promptly
  • Plan fire stopping into any work that goes through walls or floors
  • Include hidden areas like risers in routine checks

Any fire seal that’s cut or drilled needs resealing to its tested detail. New services through a sealed wall should include fire stopping in the plan.

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

The process

We bring everything the job needs with us, so there’s nothing for you to buy. After a quick look at the joints together, the area is protected and the work begins. Most jobs take a few hours for a handful of gaps, and longer for a whole building. Outdoor work around Dalmonach depends on the weather, as sealant needs a dry surface, so external jobs may need to move if the day turns wet. Work indoors isn’t affected.

  1. We go through the gaps on your list or survey and check each one’s size and substrate.
  2. Anything that isn’t fit for the job comes out, and the gap is cleaned.
  3. Where the tested detail needs backing or fill, we fit it.
  4. We apply the fire-rated or intumescent sealant to the specified depth and tool it.
  5. Locations and products are noted so you have them on file.

Before we arrive

  • Let us know about earlier repairs to the joints
  • Plan for the work area to be out of bounds to pets and children
  • On commercial sites, let us know about site rules

How to get a quote

Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we will talk you through what we’d do. Whenever you are ready, send an email to info@mrmastic.co.uk.

Get a quick quote

Related advice

What we are called out for in Dalmonach

Over time, buildings change layout and use. Conversions to flats and HMOs, and office refits, create new walls and new routes for services, with gaps to match.

Most people get in touch after spotting one of these:

  • Standard silicone or caulk in a fire-stopping gap
  • Cracked or shrunken fire-rated sealant
  • Door frames with gaps between frame and wall
  • Gaps left after a refit or conversion

Letting a property close to Alexandria station? Then any gap left by new services in shared walls should be closed with a fire-rated product.

What your quote should include

  • What the quote includes, VAT included or not
  • Whether the sealant suits the joint
  • Are they insured?
  • How hidden problems are handled

10 questions to ask before booking

Workplaces and buildings in Dalmonach

Scotland has its own building regulations, the Building (Scotland) Regulations, with technical handbooks. Fire-rated sealant is installed to the manufacturer’s tested details, though we don’t certify buildings or do fire risk assessments.

If you look after a building such as Vale of Leven Academy, gaps opened by contractors for new cabling are a common finding in schools and offices.

Dalmonach is about 3 miles north of Dumbarton, in West Dunbartonshire. We provide fire rated sealant to homes and businesses in Dalmonach and nearby. Our area takes in 31 places across West Dunbartonshire. Our Glasgow page covers work nearby, about 15 miles away.

We cover every part of the G83 postcode area for fire rated sealant. Whether your property is on Main Street, Third Avenue and Sandbank Crescent or anywhere close by, we can help. Close by, we work in Alexandria (1 mile north-west), Bonhill (1 mile south), Renton (1 mile south-west), Dumbarton (3 miles south) and Castlehill (3 miles south). We also work in nearby towns such as Clydebank (8 miles south-east), Linnvale (9 miles south-east), Crosslet (3 miles south), Kirktonhill (3 miles south), Cardross (4 miles south-west) and Drumry (9 miles south-east).

Near you in Dalmonach

Dalmonach has its own railway station: Alexandria station. Nearby you’ll also find Tullichewan Castle (1.2 miles north-west) and Motoring Heritage Centre (0.6 miles north-west). Green spaces nearby include Dumbuck Hill and Loch Bowie.

Map of Dalmonach © OpenStreetMap contributors

Your questions about fire rated sealant in Dalmonach

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

Yes, we work for landlords and letting agents. You can email us at info@mrmastic.co.uk with the address and a few details, and we will give you a fixed price before work begins.

How do Scotland’s building regulations apply to fire-rated sealant in Dalmonach?

Scotland has its own building regulations, the Building (Scotland) Regulations, with their own technical handbooks. Whatever the rules, fire-rated sealant has to be installed to the manufacturer’s tested details, and that’s how we fit it. We don’t certify buildings or carry out fire risk assessments, so your fire risk assessor or building control will advise on what’s needed.

Will you assess my building’s fire safety?

No. That’s for a fire risk assessor, designer or building control. Our job is applying the sealant to their specification.

Are you insured?

Yes. We’re fully insured, with over 20 years’ experience in sealant work.

Can you give us a record of the work?

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

Is there any odour?

Sometimes, a little. It fades as the sealant cures.

What’s the difference between intumescent and fire-rated sealant?

Intumescent means it swells when heated, helping close the gap. Intumescent sealants are one kind of fire-rated sealant; the right one depends on the gap and what passes through it.

What fire rating will the seal have?

We don’t give ratings or certificates for our work. The requirement comes from your assessor, designer or building control, and we fit a product whose tested details meet it with a record of each location.

Can I do it myself?

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

Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.

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