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

Fire-rated sealing and fire stopping in Longside, Aberdeenshire

Fire stopping in Longside, backed by over 20 years in commercial sealing. Fully insured and CHAS accredited.

  • Head-of-wall gaps with no fire seal
  • Snag lists that include open service penetrations
  • Openings found when ceilings come down for a refit
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
South East, London & Scotland
CHAS & Constructionline
£5m public liability

Fire stopping for Longside sites

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

Fire stopping in Longside

The test standards are BS EN 1366-3 for penetration seals and BS EN 1366-4 for linear joints. That classification, such as EI 60 or EI 120, belongs to the product in its tested arrangement. Reproducing the tested arrangement on site is the part we take care of. Site teams most often ask us about old intumescent sealant that has split away and seals disturbed by maintenance and left open, on linear gaps at wall heads, service gaps in risers and cable penetrations. Facilities teams, main contractors and managing agents in Longside tend to want the same three things: a clear scope, tidy work and joints that don’t fail again.

Hotels and care homes around smaller places like Longside often have services added during refurbishment. A round of checks after M&E work is good practice, and any gaps found are sealed where fire-rated sealant is specified.

Our workmanship is guaranteed for 12 months, in Longside as everywhere else we work. If our installation lets you down in that time, we return and fix it.

The Mastic Doctor team standing beside their branded vans outside an office building
Location
Longside (AB42)
Wider area
Aberdeenshire
Cover
A 12-month guarantee
Quotes
A fixed quote before we start
Telephone
01277 525 020
Page updated
3 November 2026

For managing agents and facilities managers

Hotels, schools, healthcare sites, offices and retail units come to us directly as well. We plan around the way the building is used, so guests, pupils, patients or staff are disturbed as little as possible.

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

Questions we’re asked in Longside

Is Longside too far out for you?

No. Small places get the same service as large ones. Our area covers all of Scotland, cities, towns and islands alike. Where we can, we group nearby jobs to make the most of each trip.

Which Scottish guidance covers penetration seals in Longside?

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. Design sits with the designer and the verifier; installation to the tested detail is our part.

Can weather delay the job?

Outside, yes. The joint has to be dry and within the product’s temperature range, so frost, rain or cold mornings can delay outside work. Internal work is rarely affected.

Do you hold CHAS accreditation?

Yes. We’re CHAS accredited and a Constructionline member.

Can you quote from photos?

Many jobs can be quoted from photos, drawings or a joint schedule. If the job needs a look first, we’ll arrange a visit before quoting.

Can the building stay open while you work?

Normally, yes. We phase the work so most of the building stays in use.

Are you fully insured?

Yes. We are fully insured, including public liability cover.

General trades versus a specialist

Some joints are best left to specialists: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. A poor seal in places like these tends to cost more to put right later.

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.

Diagnose, treat, 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, the manufacturer’s primer is applied where it’s called for, and the sealant is tooled off neatly. Tell us who will meet us and how to get in at your building near Longside. That goes into the plan alongside the quote.

  1. The specification and schedule come first, so we know which details apply.
  2. Access, permits and the order of areas are agreed with the site team.
  3. Each opening is checked for wall or floor type, service, gap and depth.
  4. Foam, ordinary sealant and debris come out so the seal starts clean.
  5. Backing and fire-rated sealant are installed to the detail and tooled.
  6. We tell you about openings that need a different product.

What we need from you

  • Agree which areas must stay open
  • Share your working hours and any access restrictions
  • Have the specification and drawings to hand

Request a quote

Every quote starts with the facts: what’s there, how much of it, how we reach it and what’s specified. Share whatever details you have and we’ll fill any gaps with a visit.

Get a price

Read more

When it isn’t the sealant

Sealant solves a lot, but not everything, and we are upfront when that’s the case. These need a different solution:

  • Large openings beyond what any sealant detail covers
  • Deciding what a wall or floor needs, which belongs to the designer
  • Signing off or certifying a building’s fire stopping

If in doubt, give us a call on 01277 525 020 or email the details over and we will say what we think before you book.

What we seal

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

Why it’s worth doing now in Longside

It is cheaper to seal service penetrations as each services package finishes than to come back for them later. While the area is still open, every opening is easy to see and reach, and the right detail can be checked at the time. Around smaller places like Longside, halls, stores and seasonal buildings may not be checked often, giving water time to get in. Resealing early avoids that.

We don’t publish prices, because the scope varies so much from one building to the next. Call for a quote.

Why clients in Longside choose us

  • Work carried out by CSCS-carded applicators
  • Work to your specification and the manufacturer’s guidance
  • One number for every site we cover
  • Constructionline member for supplier checks

See how commercial sealant jobs are priced and our accreditations and insurance.

Surface by surface

Plastic pipes

In a fire, plastic pipework melts away and leaves an opening. Some intumescent sealants are tested on smaller plastic pipes. We check the pipe material and diameter against the detail before we start.

Masonry and concrete

Openings through concrete vary from tidy cores to rough break-outs. Each gap is measured where it is widest against the detail’s limits, and any outside it are raised with you.

Service penetrations in Longside buildings

In Scotland, clause 2.1.14 of the non-domestic Technical Handbook expects service penetrations to keep at least the fire resistance duration of the wall or floor, with products tested for that end use. We install what’s specified, to the product’s tested detail.

Where a unit on an estate such as Thunderton Industrial Estate, 2.3 miles east of Longside, has fire-resisting walls between offices and warehouse, any new service through them should be sealed to the tested detail. In a building such as Parish Church, any service penetration through a fire-resisting wall should be sealed to the specified detail. Large healthcare estates like Ugie Hospital, 5.6 miles to the east of Longside, change their services often, so penetration seals are worth checking after M&E work.

Longside is about 5 miles west of Peterhead, in Aberdeenshire. We cover commercial sites throughout Longside. Longside is one of 179 places in Aberdeenshire on our list for service penetrations. There’s a separate page for Aberdeen, about 26 miles away.

Anyone looking for fire stopping in AB42 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. Streets here include Market Hill, Main Street and Station Road. We also cover Mintlaw (2 miles west), Rora (3 miles north-east), Downiehills (3 miles east), Old Deer (4 miles west) and Fetterangus (4 miles north-west). A short drive away, we cover Peterhead (5 miles east), Fraserburgh (12 miles north), Ellon (11 miles south-west), Roanheads (6 miles east), Clerkhill (5 miles east) and Port Henry (6 miles east).

Landmarks near Longside

A little further out are Inverugie Castle (4.2 miles east) and Carnegie Inverurie Museum (1.9 miles south-west). For a walk, there’s Hill of Aldie and Pitfour Lake.

Map of Longside © OpenStreetMap contributors
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