Orkney Islands · Scotland

Fire-rated sealant in Isbister, Orkney Islands

Intumescent and fire-rated sealant around gaps, frames and service penetrations in Isbister, with a one-year guarantee on every job. Ask us for a quote.

  • Unsealed gaps where pipes and cables go through a wall
  • Door frames with gaps between frame and wall
  • Joints picked up in a fire-stopping survey

Fire rated sealant in Isbister

When to call us in Isbister

Lots of unsealed gaps appear long after the building was completed. Electricians, plumbers and data installers drill through walls and ceilings and the hole they leave does not always get resealed.

The problems people usually mention when they call include:

  • Old fire sealant that has split or come away
  • Open gaps behind door architraves
  • Standard silicone or caulk in a fire-stopping gap
  • Seals cut through by electricians, plumbers or data installers

For jobs in and around Isbister, choosing the right material for each joint is as important as a tidy finish.

What to look for in a quote

  • Who does the work, and how experienced they are
  • What insurance they hold
  • What the cure time is
  • The length of the guarantee

How to choose a mastic man

About our fire rated sealant in Isbister

Until it’s heated, intumescent sealant behaves like an ordinary sealant; then it swells to help close the gap. The right product depends on the gap size, the substrate and what passes through, so we follow the tested detail for each one. Common call-outs are for cracked or shrunken fire-rated sealant and joints picked up in a fire-stopping survey, on pipe & cable gaps, door frames and plasterboard & masonry.

Commercial work around smaller Scottish places tends to mean hotels, guest houses, schools and halls rather than offices. All of them have washrooms, kitchens and fire-rated joints that need looking after.

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

Place
Isbister (KW17)
Wider area
Orkney Islands
Cover
One year on every job
Price
A clear price before any work starts
Email
info@mrmastic.co.uk
Last updated
26 October 2026
Eleven members of the Mr Mastic team standing in front of branded white vans

What happens if it’s left?

For some gaps, sealant is not 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. In an older home around Isbister, damp from a failed joint can get into timber and plaster, which is a far bigger job than the sealant.

Doing several joints on one visit is generally more efficient than separate visits. You’ll get one clear quote for the whole job.

Why Isbister clients choose us

  • Anti-fungal silicone where joints get wet
  • Any old sealant cut out fully, not covered over
  • Neat joints and a tidy finish
  • 4.9 on Google from 180+ five-star reviews

Read how sealant jobs are priced or customer reviews.

Fire rated sealant around Isbister

For seaside hotels, guest houses and holiday lets around Isbister, busy months put washrooms and kitchens under pressure, so it’s worth checking the sealant before the busiest weeks. Island jobs need planning around ferries and the weather, so the more notice, the better.

Around Isbister, as everywhere, fire rated sealant is only as good as the preparation behind it.

Isbister is about 6 miles north-west of Kirkwall, in the Orkney Islands. Every kind of property in Isbister can book us for fire rated sealant. Every job comes with our 12-month guarantee. Across the Orkney Islands, we cover 51 places, Isbister among them.

All of KW17 is within our area for fire rated sealant, from the main roads to the quietest streets. We also cover the places around Isbister: Norseman (1 mile west), Gorseness (2 miles north-east), Settiscarth (2 miles west), Tingwall (3 miles north) and Finstown (4 miles south-west). Remote and island addresses need a little more planning, so tell us where you are when you ask for a quote.

Near you in Isbister

Nearby you will also find Langskaill House (3.3 miles north-east). For a walk, there’s Enyas Hill and Birsay moors RSPB Reserve.

Map of Isbister © OpenStreetMap contributors

Common questions in Isbister

Is Isbister in your area for fire rated sealant?

Yes, Isbister is within the area we cover. We work across all of Scotland. You can email us at info@mrmastic.co.uk and tell us what needs doing, and we’ll send you a clear quote.

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

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 is how we fit it. We do not certify buildings or do fire risk assessments; your assessor or building control can tell you what’s required.

Do you carry out fire risk assessments?

No, assessment isn’t something we do. Once you have a specification or action list from your assessor or designer, we can quote for the fire-rated sealant items.

Do I have to be there?

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

What does intumescent mean?

An intumescent material expands when it’s heated. Intumescent sealants are a type of fire-rated sealant and which one is used depends on the job.

Can new sealant go over the old?

No, and we never do. It may look fine at first, but the new layer lifts away from the old one. The old sealant has to come out completely.

How long does fire rated sealant take?

That depends on how much there is to do, but most jobs take from a few hours to a few days, depending on the number of gaps and the access. We’ll give you a better idea when we quote.

What information do you need?

Where the job is, what the problem is and roughly how big it is. Photos by email help too.

Quotes for fire rated sealant in Isbister

We don’t publish a price list, because jobs vary so much. The quote depends on:

  • The size of the job
  • The number of rooms or windows
  • Any working-time requirements on site
  • Mould in or behind the old joints

Every job is a little different, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we’ll explain the quote if you ask.

What we need to know

Photos by email are helpful but not essential. Please mention:

  • If it’s domestic, commercial or a hotel
  • The problem you’ve noticed
  • How many joints, rooms or windows are involved
  • The address or postcode of the job

For fire rated sealant in Isbister, email us at info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.

How it works

We keep the work tidy and contained to the area we are working on, so you can get on with your day. Expect the work to take a few hours for a handful of gaps, and longer for a whole building. Around Isbister, distance and access matter more than parking. Tell us how to find the property and how to reach the work, and the visit is planned around that.

  1. We begin by agreeing the list of gaps from your assessor’s or designer’s requirements.
  2. Each gap is measured and its substrate and service noted.
  3. Unsuitable material such as ordinary foam or silicone is cut out and the gap cleaned.
  4. We fit backing where needed and apply the fire-rated sealant to depth.
  5. We hand over a list of locations and products.

Before we arrive

  • Plan for the work area to be out of bounds to pets and children
  • Mention if the joints have been sealed before
  • On commercial sites, let us know about site rules

Get a quote

There’s no standard price list, because every job is different. Instead, we give you a clear quote for your job. To arrange one, email us at info@mrmastic.co.uk.

Get a quick quote

Advice

How the job changes by surface

Door frames

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

Masonry and concrete

Holes through concrete and block are rarely neat. We check the gap size around the service against the product’s tested range.

Should I try it myself first?

If you’ve already had a go yourself, that’s fine. We cut it out and start again, so just mention it when you contact us.

Some sealant jobs are within reach of a careful DIYer, 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.

When it is not the sealant

A few problems are outside what sealant work can do:

  • Fire risk assessments, which need a qualified assessor
  • Fire doors that need new seals, closers or hardware
  • Walls or floors that weren’t built to resist fire

Not sure which it is? You can email us at info@mrmastic.co.uk and we’ll tell you honestly before you book.

What we seal

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