
Fire Stopping in Strathy
Fire-rated and intumescent sealing of service penetrations and linear gaps throughout Strathy and nearby, by CSCS-carded applicators. Fully insured and CHAS accredited.
- Open linear gaps along the top of fire-resisting walls
- Unsealed penetrations discovered above suspended ceilings
- Improvised or mixed-product fire seals
Fire stopping for Strathy sites
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
When to call us in Strathy
Openings in fire-resisting walls typically appear when services are added or changed. A new cable pulled by an electrician, a pipe rerouted by a plumber or a data run drilled through a riser can leave the hole behind. Across several fit-outs, the openings add up.
If one of these sounds familiar, it’s time for a closer look:
- Openings found when ceilings come down for a refit
- Unsealed joints where partitions meet the slab
- Fire seals cut back for extra cables and never reinstated
- Snag lists that include open service penetrations
For any site around Strathy, we work to the specification and the manufacturer’s installation guidance, leaving design and sign-off with the designer.
What your quote should include
- Health and safety accreditation such as CHAS
- The named product and why it was chosen
- How they’ll work around occupants
- Who will actually carry out the work
About our fire stopping in Strathy
For main contractors, our fire stopping package slots in after the M&E trades have finished in an area. We work from your penetration schedule or marked-up drawings alongside the manufacturer’s details. Tell us what records you need and we’ll confirm with the quote. Site teams most often ask us about improvised or mixed-product fire seals and old intumescent sealant that has split away, on joints between fire-resisting walls and floors, service gaps in risers and small duct penetrations where the tested detail allows. Searching for sealant specialists in Strathy? Mastic Doctor has worked for contractors, FMs and building owners since 2005, CHAS accredited and a Constructionline member.
Around smaller places such as Strathy, compartment walls and floors tend to be in schools, hotels, care homes and community buildings. Where services pass through, specified fire-rated sealant is installed following the manufacturer’s guidance for that wall or floor.
We sign every job off with a 12-month guarantee. The promise is simple: if our work fails within that year, we put it right.
- Place
- Strathy (KW14)
- Region
- Highland
- Cover
- A 12-month guarantee
- Quotes
- A fixed quote before we start
- Phone
- 01277 525 020
- Page updated
- 3 November 2026

For managing agents and facilities managers
FMs need a contractor who is easy to get on site. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we’ll confirm with the quote.
As a CHAS accredited contractor and Constructionline member, we make supplier vetting simple. We’re fully insured, and our insurance certificate can go with the quote.
What the job involves on each surface
Linear joints
Head-of-wall gaps, slab edges and wall junctions are linear joints. Their tested detail, under BS EN 1366-4, sets the width, depth, backing and movement allowed and the installation has to fit inside those limits.
Drylining partitions
Holes in board are often cut larger than needed. An oversized hole may be outside the sealant’s range, and the detail may call for board patching or another product.
When to bring in a specialist
The visible bead is only part of the job. Backing rod, primer where specified and a joint designed to move with the building are where general trades tend to cut corners.
For most general trades, sealant is a sideline. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint, which is what makes a joint last.
Nearby places to Strathy
Other services in Strathy
Common questions from Strathy clients
Which Scottish guidance covers penetration seals in Strathy?
Scotland’s non-domestic Technical Handbook covers it in clause 2.1.14: penetrations keep at least the element’s fire resistance duration, with products tested for their end use. Design sits with the designer and the verifier; installation to the tested detail is our part.
Do you decide the fire-stopping details for buildings in Strathy?
No. The designer or fire engineer sets the detail and building control accepts it. We install fire-rated and intumescent sealant around service penetrations and linear gaps where it is specified, to the manufacturer’s tested detail.
Are you insured?
Yes. We’re fully insured, and the certificate can go with your quote.
Are you CHAS accredited?
Yes. CHAS accredited, Constructionline member, and our applicators hold CSCS cards.
How long before the joints can be used?
That comes down to the sealant and the temperature. Some products skin over quickly but need longer to cure fully, so we’ll confirm the curing time on the day.
What about RAMS and site documents?
Let us know which documents the site needs, such as RAMS, an insurance certificate or CSCS details, and we will confirm them with the quote.
Can you work to our specification?
Yes. Send it with your enquiry, and the quote will be based on it, flagging anything that needs clarifying.
Diagnose, treat, sign off
We begin with a short walk round with whoever looks after the building, agreeing which joints are in scope, where to start and what must stay open. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. For work around Strathy, we aim for one trip, which is why we ask for photographs and a full list first. External joints need a dry spell as well.
- We start with your penetration schedule, drawings or specification.
- Access, permits and the order of areas are agreed with the site team.
- Each opening is checked for wall or floor type, service, gap and depth.
- Foam, ordinary sealant and debris come out so the seal starts clean.
- Backing and fire-rated sealant are installed to the detail and tooled.
- Anything outside the detail is reported to you rather than sealed.
Preparing the site
- Send any specification or drawings in advance
- Tell us what induction or permit system the site runs
- Move anything stored against the joints
Get a fixed quote
For a fixed quote, speak to us on 01277 525 020 or use the quote form, telling us the site location and the nature of the job. Our quote form is another easy route.
Read more
Leave it or put it right?
Open penetrations multiply: each new service adds to the list. A schedule that is dealt with regularly stays manageable. Around smaller places like Strathy, halls, stores and seasonal buildings may not be checked often, so a failed joint has time to cause damage. Resealing early avoids that.
We don’t publish prices, since every building and every scope is different. For a fixed figure, call for a quote.
Why clients in Strathy choose us
- Old sealant cut out, never sealed over
- Fixed quotes based on photographs, drawings or a visit
- Work to your specification and the manufacturer’s guidance
- Fully insured
Read how commercial sealant jobs are priced and our accreditations.
Compartment walls and floors in Strathy
Under the Scottish non-domestic Technical Handbook, clause 2.1.14, penetrations should be fire stopped to at least the wall or floor’s fire resistance duration, and products should be tested for their end use. We install fire-rated sealant to that tested detail where it is specified.
Around Strathy, we install fire-rated and intumescent sealant to the product’s tested detail wherever it is the specified product.
Strathy is about 17 miles west of Thurso, in Highland. We send applicators to Strathy for service penetrations, handled exactly as we handle every other area. Across Highland, 256 places are covered, including Strathy.
We cover the KW14 postcode districts for service penetrations. Close to Strathy, our area also takes in Portskerra (3 miles east), Melvich (3 miles east), Reay (8 miles east), Am Blàran Odhar (8 miles west) and Forss (13 miles east). For island and remote sites, we plan travel and materials carefully, so the full address helps from the start.
Around Strathy
The countryside around Strathy includes Lochan Ealach.