The Mastic Doctor team standing beside their branded vans outside an office building
Highland · Scotland

Fire Stopping in Portmahomack

Fire-rated and intumescent sealing of service penetrations and linear gaps throughout Portmahomack and nearby, carried out by CSCS-carded applicators. CHAS accredited and fully insured.

  • Openings found when ceilings come down for a refit
  • Old intumescent sealant that has split away
  • Unsealed joints where partitions meet the slab
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Signed off, with 12 months’ guarantee.
South East, London & Scotland
CHAS & Constructionline
Fully insured: £5m PL

Fire stopping across Portmahomack

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

What we can’t put right

A few problems need another trade or a different fix, and we say so rather than covering them up:

  • Designing or specifying fire stopping, which sits with the designer or fire engineer
  • Fire risk assessments, a job for a competent assessor
  • Approving the work on behalf of building control

Not sure which it is? You can give us a call on 01277 525 020 or send photos by email and we’ll tell you honestly.

Surfaces we seal

  • Linear gaps at wall heads
  • Cable penetrations
  • Pipe penetrations
  • Joints between fire-resisting walls and floors
  • Service gaps in risers
  • Small duct penetrations where the tested detail allows

Fire stopping in Portmahomack

Opened ceilings and riser doors often reveal service openings nobody sealed. Where the walls and floors already have a fire-stopping specification, we can work to it, matching the product and detail it names. Where there isn’t one, the designer or fire engineer needs to set one first. Site teams most often ask us about openings left by services added after handover and damaged fire seals in risers and voids, on small duct penetrations where the tested detail allows, joints between fire-resisting walls and floors and cable penetrations. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: in Portmahomack, that means joint design, primers and backing rod as standard.

Hotels and care homes around smaller places like Portmahomack often have services added during refurbishment. We fit the specified fire-rated sealant as its published detail shows and raise it if another product is needed.

Work we carry out comes with a 12-month guarantee. Should something we installed fail, give us a call on 01277 525 020 or send details through our quote form and we’ll come back to it.

The Mastic Doctor team beside their liveried vans in front of an office building
Location
Portmahomack (IV20)
Wider area
Highland
Guarantee
12 months on every job
Price
Fixed quote, scope in writing
Call
01277 525 020
Last updated
3 November 2026

From enquiry to sign-off

We bring the products specified for the job, along with primers and backing rod. Any old material is cut back to clean, sound faces, primer goes on where the manufacturer specifies it, and each bead is tooled to a neat concave finish. Travel to smaller Scottish places like Portmahomack is planned so the job is finished in one visit where possible, which is why we ask for photos and a full list first. External joints need a dry spell as well.

  1. First we go through the drawings, schedule or specification for the seals and raise any questions before we price.
  2. Every penetration is compared with its detail: wall or floor type, service, gap size and depth.
  3. Unsuitable fillers and loose debris are taken out of each opening.
  4. Mineral wool or other backing goes in wherever the detail asks.
  5. We apply the specified sealant to the depth and around the services as the detail shows.
  6. Openings that need a collar, wrap, batt or other product are flagged to you rather than filled with sealant.

Preparing the site

  • Confirm the product named in the specification
  • Arrange parking or a loading space
  • Tell us your opening times and when work is allowed

Request a quote

Every job follows the same four steps: send details, get a quote, we seal, guaranteed. The first step is to call the office on 01277 525 020 or email the details over with what you know.

Get a quick quote

Related advice

Compartment walls and floors in Portmahomack

Scottish guidance (non-domestic Technical Handbook, clause 2.1.14) asks that penetrations match at least the fire resistance period of the element they pass through, with products tested for that end use. Our part is installing the specified fire-rated sealant to its tested detail.

For buildings in and around Portmahomack, fire-rated sealant is installed where it is specified, to the manufacturer’s tested detail.

Portmahomack is about 18 miles north of Nairn, in Highland. We send applicators to Portmahomack for service penetrations, handled exactly as we handle every other area. Across Highland, 256 places are covered, including Portmahomack. Aberdeen is covered too, some 79 miles away.

Postcode districts covered here: IV20 for service penetrations. For a building on Main Street, Bank Street and Well Street or nearby, we can quote for service penetrations. If your building is just outside Portmahomack, we cover Inver (4 miles west), Hilton of Cadboll (6 miles south-west), Loans of Tullich (6 miles south-west), Balintore (6 miles south-west) and Fearn (7 miles south-west). Nearby towns on our patch include Tain (9 miles west), Dornoch (8 miles west), Golspie (11 miles north-west), Brora (12 miles north) and Cromarty (13 miles south-west). Remote and island addresses take more planning, from travel and ferries to the weather, so give the site location in your enquiry.

Near you in Portmahomack

Locally, jobs take us to sites close to Terrace in Portmahomack and the streets around them. Other landmarks nearby include Ballone Castle (0.9 miles south-east).

Map of Portmahomack © OpenStreetMap contributors

What the job involves on each surface

Masonry and concrete

Core-drilled holes are neat; broken-out ones rarely are. Each gap is measured where it is widest against the detail’s limits.

Linear joints

Joints at the top of partitions may need to move as the slab above deflects. We use the product and backing the detail names for that movement.

Signs you need fire stopping in Portmahomack

Head-of-wall joints and wall-to-wall junctions are frequent weak points. Movement in the frame or slab can open the joint, and a product not tested for that movement may crack. Linear joint details set a width range and movement capability, and the seal has to sit within them.

If one of these sounds familiar, it’s time for a closer look:

  • Head-of-wall gaps with no fire seal
  • Fire-stopping items raised at inspection or handover
  • Seals disturbed by maintenance and left open
  • Hidden openings found during inspections

Around Portmahomack, fire-stopping design belongs to the designer and building control; installation to the specification is our part.

What to look for in a quote

  • What the guarantee covers, and for how long
  • How joint depth will be controlled
  • Can the work be phased to keep areas open?
  • Which product they’ll use, and why it suits the joint

Choosing a commercial sealant contractor

Keeping the joints sound

Regular inspection catches problems early. Specifically:

  • Keep product data and details in the fire safety file
  • Put resealing into every M&E and fit-out package
  • Settle who seals which penetrations at the start of a project
  • Have penetrations checked while they can still be seen

After every round of M&E works, check that the openings created have been sealed. Building it into each contractor’s sign-off keeps the walls intact.

Write fire stopping into the scope of any work crossing a compartment wall or floor. That way the opening is sealed while the trade and access are still there, not months later.

Portmahomack: questions and answers

Will you design a fire-stopping scheme for our building in Portmahomack?

No. The designer or fire engineer sets the detail and building control accepts it. We install what’s specified, to the product’s tested detail.

Which Scottish guidance covers penetration seals in Portmahomack?

Under Scotland’s non-domestic Technical Handbook (clause 2.1.14), service penetrations should keep at least the wall or floor’s fire resistance duration, using products tested for their end use. We install what has been specified, to the manufacturer’s tested detail, while design and approval sit with the designer and the verifier.

Which sealant will you use?

If the job is specified, we follow the specification. If not, we choose for the movement, the surfaces and the conditions, in line with the manufacturer’s guidance.

Do you guarantee your work?

Yes, for 12 months. If a joint fails because of how we installed it, we come back and put it right.

Will you just go over the old sealant?

No, never. Sealing over old material is one of the classic causes of early joint failure, so it all comes out first.

What site paperwork can you supply?

Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote.

What if there’s asbestos in the old mastic?

Some older mastics, especially in pre-2000 buildings, can contain asbestos. We check the asbestos register before cutting out old sealant in an older building, and work stops until any suspect material has been tested. We don’t remove asbestos-containing materials.

Building owners, agents and FMs in Portmahomack

Hotels, schools, healthcare sites, offices and retail units come to us directly as well. The work is planned around how the building runs, so the building keeps working while we do.

Housing associations and managing agents often need work done across blocks and communal areas. We phase the work so people keep access, and each stage is agreed with your contact.

Accreditations

Trusted. Accredited. Insured.