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

Glengolly fire stopping

Fire stopping in Glengolly, backed by over 20 years in commercial sealing. Fully insured, with a 12-month guarantee.

  • Damaged fire seals in risers and voids
  • Penetration schedules that need working through
  • Fire sealant pulled out of the opening
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 accredited
£5m PL insurance

Fire stopping for Glengolly sites

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

When to call us in Glengolly

Physical damage is another reason seals stop doing their job. Maintenance work can knock a seal, cut it back for an extra cable or remove it with an old pipe, and the repair is often skipped.

These are often picked up first by site or facilities staff:

  • Fire stopping installed outside its tested range
  • Open linear gaps along the top of fire-resisting walls
  • Old intumescent sealant that has split away
  • Unsealed penetrations discovered above suspended ceilings

In a school such as Thurso High School, fire-rated sealant goes in around service penetrations where it is specified.

Questions to ask before you book

  • Is depth set with backing rod, or bond-breaker tape in shallow joints?
  • What the guarantee covers, and for how long
  • Who will actually carry out the work
  • Is the sealant right for the movement and the substrate?

Choosing a commercial sealant contractor

How we handle fire stopping in Glengolly

It helps to set out our role at the start. Deciding the specification sits with the designer, the fire engineer and building control; sign-off sits with them too. What we bring is careful installation of the specified sealant, to the maker’s guidance on sites in Glengolly. If you are dealing with openings found when ceilings come down for a refit and snag lists that include open service penetrations, we can put it right, whatever the surface. For commercial sealant work in Glengolly, you deal with one contact from quote to sign-off, whether it’s one building or several.

For a building near Glengolly, we plan fire-rated sealing so it’s finished in one visit where possible. Send the specification and photos of the openings, with sizes if you have them.

A 12-month guarantee applies to all our work in Highland. If an installation problem shows up, speak to us on 01277 525 020 or send details through our quote form and we will arrange a return visit.

Where
Glengolly (KW14)
Wider area
Highland
Cover
A 12-month guarantee
Quotes
Fixed quote, scope in writing
Telephone
01277 525 020
Updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

On site: what to expect

Occupied buildings need a little choreography. We sign and contain the area we’re in, with routes through the building left open and move on in phases so staff and visitors can carry on around us. Jobs near Glengolly are often grouped with others in the same area, to make the most of each trip. Let us know if your dates have any give.

  1. First we confirm the product and tested details named in the specification.
  2. Openings are measured and grouped by detail.
  3. Improvised fillers and failed sealant are removed.
  4. Where the detail needs backing, it goes in at the stated depth.
  5. Fire-rated or intumescent sealant goes in around the services and is tooled off.
  6. We walk the completed areas with you and confirm the records agreed at quote stage.

Before we start on site

  • Tell us your opening times and when work is allowed
  • Let us know about inductions and permits
  • Explain the parking and delivery arrangements

Get a fixed quote

The quickest route to a quote is a few photographs and the site postcode. Send them through the quote form, or call the office on 01277 525 020 or email drawings and photos if you’d rather talk the job through.

Ask for a quote

Related advice

General trades versus a specialist

Some joints are best left to specialists: for example fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. Getting these wrong usually costs more in the end than doing them right.

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.

Building owners, agents and FMs in Glengolly

For main contractors, we work as the sealant subcontractor on new-build and refurbishment projects. We work to your programme, your specification and your site rules.

We work for building owners and managing agents on sealant work across single buildings or whole portfolios around Glengolly. Several sites can go on one quote, so there’s one set of paperwork to deal with.

Honest limits

We check first that sealant really is the fix. It isn’t the answer for:

  • Designing or specifying fire stopping, which sits with the designer or fire engineer
  • Approving the work on behalf of building control
  • Reviewing a building’s overall fire safety

If in doubt, call the office on 01277 525 020 or email the details over and we’ll say what we think.

What we seal

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

Keeping the joints sound

Every sealant joint needs some looking after, and how long they last depends on how they’re treated. Our advice:

  • Record which product was used where
  • Settle who seals which penetrations at the start of a project
  • Check with the data sheet before painting over fire sealant
  • Foam or ordinary sealant is never a fire-seal repair

New services after handover are a common way fire stopping gets breached. A short check at the end of each job saves a long hunt later.

On fit-outs, get the fire-stopping specification agreed before the services go in. The designer can then choose details that suit the services planned.

Where services cross fire walls in Glengolly

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. Where fire-rated sealant is specified, that’s what we install, to the tested detail. A 2-mile radius around Glengolly takes in a number of hotels. Hotels are divided into compartments, and refurbishments that add pipes and cables through bedroom and corridor walls leave gaps to close.

On a hospital site such as Dunbar Hospital, 0.9 miles north of Glengolly, fire-rated sealant goes in where the specification calls for it, with the work planned around the estates team’s permits.

Glengolly is about 2 miles south-west of Thurso, in Highland. Businesses, contractors and managing agents in Glengolly use us for work on service penetrations, as part of our coverage of Highland. 256 places across Highland fall within our area, including Glengolly.

We cover the KW14 postcode districts. If your building is just outside Glengolly, we cover Janetstown (1 mile west), Thurso (2 miles north-east), Scrabster (3 miles north), Westfield (3 miles south-west) and Forss (4 miles north-west). Remote and island addresses take more planning, from travel and ferries to the weather, so mention the location when you phone 01277 525 020 or use the quote form.

Landmarks near Glengolly

Glengolly’s nearest station is Thurso station, roughly 1.5 miles north-east. Nearby you’ll also find Scrabster Castle (2.1 miles north) and Dunbar Hospital (0.9 miles north). Green spaces nearby include Loch Calder.

Map of Glengolly © OpenStreetMap contributors

Questions we’re asked in Glengolly

What do Scotland’s building standards say about service penetrations in Glengolly?

The non-domestic Technical Handbook, clause 2.1.14, expects a penetration to keep at least the wall or floor’s fire resistance period, with proprietary products tested for the use they’re put to. We install what has been specified, to the manufacturer’s tested detail, while design and approval sit with the designer and the verifier.

Can you seal penetrations in a hotel in Glengolly after a refit?

Yes, where the specification calls for fire-rated sealant. Work is done room by room so the hotel keeps trading; design and sign-off stay with the designer and building control.

Does the weather affect the work?

It can, for external work. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so we watch the forecast and rearrange outside work if we have to. Indoors, the weather is rarely a problem.

Is it fine to apply new sealant on top of old?

No. Overlaying old sealant is a frequent cause of early failure, so it all comes out first.

Who decides which product is used?

If the job is specified, we follow the specification. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.

How long before the joints can be used?

That comes down to the sealant and the temperature. Some take light use quickly, others need longer to cure, and we confirm it before leaving site.

How long does a typical visit take?

That varies with the scale of the job, but the work usually takes anything from one day to a planned run of visits, depending on the number of seals and the access. Larger or phased jobs take longer, and we will give you a timescale with the quote.

Accreditations

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