Shetland Islands · Scotland
Firth Fire Rated Sealant
Intumescent and fire-rated sealant around gaps, frames and service penetrations in Firth, with a one-year guarantee on every job. Ask us for a quote.
- Joints picked up in a fire-stopping survey
- Fire seals that have cracked with movement
- New service routes left unsealed after building work
For landlords and businesses
Letting agents often deal with us directly. Tell us the address, the job and how access works.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. We can quote for more than one property at once.
How we handle fire rated sealant in Firth
Later work by other trades often breaks through fire stopping, especially in flats, HMOs, offices and schools. A new cable run or a replaced pipe can leave an open hole behind. We seal them with a product tested for that kind of gap. We’re often asked to deal with gaps flagged on a fire risk assessment and open holes round services passing through fire walls, on linear gaps, door frames and service penetrations.
Work in a place like Firth is planned ahead, journey included, so the job can fit around guests, residents or opening hours where possible.
All our work comes with our one-year guarantee, wherever you are in the Shetland Islands.
- Location
- Firth (ZE2)
- Wider area
- Shetland Islands
- Cover
- A year, on every job
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
What affects the quote in Firth
Your quote is based on your job. We take into account:
- Which sealant suits the joint
- How easy the joints are to reach
- How many areas need sealing
- The old material and how stubborn it is
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What we need to know
Photos help, but a description is a good start. Please mention:
- If it’s domestic, commercial or a hotel
- Pictures of the joints, sent by email
- If someone has resealed it before
- How we’d reach the joints
We don’t publish a price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, email us at info@mrmastic.co.uk.
What the job involves on each surface
Masonry and concrete
For masonry and concrete, we use a product tested in that substrate. We clean out dust and debris before sealing.
Plasterboard walls
Many fire-resisting walls in flats, offices and conversions are plasterboard. We use a product tested in that kind of wall for the gap we’re sealing.
Common problems we fix in Firth
Door frames are a common weak spot. The architrave hides the gap between frame and wall, so it can be left open when a door is replaced.
The most common problems we see are:
- Unsealed gaps around fire door frames
- Gaps flagged on a fire risk assessment
- Unsealed gaps where pipes and cables go through a wall
- Holes left by a change of layout
For jobs in and around Firth, choosing the right material for each joint is as important as a tidy finish.
Questions to ask before you book
- Whether all the old sealant comes out first
- How much experience the applicator has
- How the colour is chosen
- What happens if they find a problem under the old sealant
Workplaces and buildings in Firth
For seaside hotels, guest houses and holiday lets around Firth, heavy use in the busy months is hard on washroom and kitchen sealant, and any building work there should leave fire-rated joints made good. In Scotland, building work comes under the Building (Scotland) Regulations and their technical handbooks. We install fire-rated sealant to the product’s tested details; we do not certify buildings or carry out fire risk assessments.
In and around Firth, as anywhere, good fire rated sealant starts with a clean, dry, properly prepared joint.
Firth is in the Shetland Islands. Whether you’re in the middle of Firth or further out, fire rated sealant is available for homes and businesses alike, from flats and houses to offices and hotels. Across the Shetland Islands, we cover 63 places, Firth among them.
Postcode districts we cover here for fire rated sealant: ZE2. Fire rated sealant is available to properties on Midlea, Leaside and Sandside. If you’re just outside Firth, we cover Mossbank (1 mile north-east), Scatsta (4 miles west), Vidlin (6 miles south), Sullom (6 miles west) and Burravoe (6 miles north-east). Remote and island addresses need a little more planning, so tell us where you are when you ask for a quote.
Landmarks near Firth
Open spaces near Firth include Loch of Bordigarth.
Firth questions
Do you cover Firth for fire rated sealant?
Yes, Firth is within the area we cover. Our work covers the whole of Scotland. Just send an email to info@mrmastic.co.uk with a few details of the job.
Are the rules for fire-rated sealant different in Scotland?
Scotland has its own building regulations, the Building (Scotland) Regulations, with their own technical handbooks. Fire-rated sealant has to go in to the product’s tested details, and we follow them. We don’t certify buildings or do fire risk assessments; your assessor or building control can tell you what’s required.
Do you take on fire stopping in schools and offices?
Yes, in flats, HMOs, schools, offices and other buildings, occupied or empty. Let us know the building’s hours and we’ll plan the work to suit.
Do you offer different sealant colours?
Generally, yes. White, clear and grey are common, and other colours are available, and we will agree it with you first.
Will there be a smell?
Sometimes, a little. Any smell clears as the sealant cures, and ventilation helps.
How long will you be here?
A typical job takes a few hours for a handful of gaps, and longer for a whole building, including preparation and clearing up. We will confirm how long when we quote.
Where are you based?
Our base is in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
Is standard sealant good enough for a fire gap?
No. Where a fire-rated seal is needed, it has to be a product tested for that use, installed to its details.
Other services in Firth
Keeping the joints in good condition
To keep the joints looking good and working properly:
- Include hidden areas like risers in routine checks
- Flag any open gap you spot round a pipe or cable
- Keep the record of products and locations with your fire safety documents
- Plan fire stopping into any work that goes through walls or floors
Let contractors know where fire stopping has been done, and ask them to reseal anything they cut through. A lot of damaged fire stopping comes from later work.
Leave a fire-stopping gap open and smoke can move through the building much more easily. Sealing it early is a simple step to take.
Honest limits
We’ll always be straight with you, so here’s what sealant cannot fix:
- Large holes that need a different fire-stopping system
- Construction that doesn’t provide fire resistance on its own
- Assessing a building’s fire safety
Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we’ll tell you honestly.
Surfaces we seal
- Pipe & cable gaps
- Flats & HMOs
- Linear gaps
- Service penetrations
- Plasterboard & masonry
- Door frames
What happens on the day
When we arrive, we start by going over the job with you. We protect the surfaces around the joints before any work begins. The work normally takes from a few hours to a few days, depending on the number of gaps and the access. Outdoor work around Firth depends on the weather, as sealant needs a dry surface, so external jobs may need to move if the day turns wet. Work indoors is not affected.
- We start with the survey or action list, checking the size and surfaces of every gap.
- We remove any old or unsuitable filler and clean the gap.
- We put in whatever backing or fill the product detail specifies.
- Fire-rated or intumescent sealant is applied to the right depth and tooled.
- We record the locations and products used for your records.
Getting ready for the visit
- Try not to wet indoor joints just before the visit
- Mention any leaks or damp you’ve noticed
- Mention any parking rules near the property
Ask for a quote
If you are in Firth and need fire rated sealant, drop us a line at info@mrmastic.co.uk. Tell us what the problem is and where, and you’ll get a clear quote before we start.