The Mastic Doctor team standing beside their branded vans outside an office building
Argyll and Bute · Scotland

Black Crofts fire stopping

Fire-rated and intumescent sealing of service penetrations and linear gaps in Black Crofts. CHAS accredited and fully insured, with a 12-month guarantee.

  • Penetration schedules that need working through
  • Old intumescent sealant that has split away
  • Unsealed openings around new pipes and cables
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
A fixed quote for the work, with the scope in writing.
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 across Black Crofts

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

From enquiry to sign-off

At the end of each section, we remove the tape, clean down and inspect every joint. Where the sealant needs time to cure before use, we tell you and sign the area. Where we can, we combine work around Black Crofts with other jobs nearby. Tell us how flexible your dates are.

  1. We ask for the product and detail your designer has specified.
  2. Openings are measured and grouped by detail.
  3. Old or wrong materials are cut out.
  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. Completed areas are checked with you, with the records agreed when we quoted.

Before we start on site

  • Tell us your opening times and when work is allowed
  • Make sure the joints can be reached
  • For older buildings, check the asbestos register before work

Getting a fixed quote

Tell us about the building, the joints and when you need the work done, and we’ll put a fixed quote together. The easiest way is to ring 01277 525 020 or email drawings and photos.

Get a price

Read more

Fire stopping in Black Crofts, done properly

We are commercial sealant applicators, CHAS accredited and a Constructionline member, with CSCS-carded applicators on site. We hold no third-party fire-stopping installer certificate. What we offer is careful installation of the specified sealant to its tested detail, with a 12-month guarantee on our workmanship. Most enquiries involve penetration schedules that need working through and fire sealant pulled out of the opening, on joints between fire-resisting walls and floors, linear gaps at wall heads and pipe penetrations. For commercial sealant work in Black Crofts, you deal with one contact from quote to sign-off, for single jobs and planned programmes alike.

In smaller Scottish places like Black Crofts, buildings with fire-resisting walls typically include schools, care homes, hotels and health centres. Where services pass through, specified fire-rated sealant is installed following the manufacturer’s guidance for that wall or floor.

A 12-month guarantee applies to all our work. If an installation problem shows up, ring 01277 525 020 or send photos by email and we will arrange a return visit.

The Mastic Doctor team beside their liveried vans in front of an office building
Where
Black Crofts (PA37)
Region
Argyll and Bute
Cover
12 months on every job
Price
A fixed quote before we start
Phone
01277 525 020
Last updated
3 November 2026

Work for main contractors and building owners

For main contractors, we work as the sealant subcontractor, on new build and refurbishment alike. Programme, specification and site rules come first.

Hospitality, education, healthcare, office and retail clients come to us directly as well. The work is planned around how the building runs, so guests, pupils, patients or staff are disturbed as little as possible.

When something else is needed

A few problems need another trade or a different fix, and we point that out rather than sealing over them:

  • Fire risk assessments, a job for a competent assessor
  • Designing or specifying fire stopping, which sits with the designer or fire engineer
  • Plastic pipes whose detail calls for a collar or wrap

Not sure which it is? You can call 01277 525 020 or email us and we will tell you honestly before you book.

Surfaces we seal

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

Different surfaces, different methods

Risers and ceiling voids

Service risers and the voids above ceilings are where openings collect. Access is often tight, so we agree it with you in advance, including keys, permits and any isolations.

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.

What sets the cost

The price varies from site to site. Expect it to depend on:

  • How much existing material needs removing
  • Travel to remote or island sites
  • Whether the work must be split into stages
  • How accessible the joints are

We don’t publish prices, since every building and every scope is different. Call for a quote and we’ll price your job on its own details.

Before you send an enquiry

For an accurate fixed quote, we need a clear picture of the site. Send us:

  • Any dates the work must fit around
  • Access details, including height
  • The asbestos register, for older buildings
  • The site address and postcode

Quotes are fixed against the scope you send, so the cost is agreed before work starts. To ask for one, call the office on 01277 525 020 or email the details over.

Signs you need fire stopping in Black Crofts

Damage plays a part too. Seals get knocked during maintenance, cut back to add a cable or pulled out when services are swapped.

Things that typically lead to an enquiry:

  • Fire sealant pulled out of the opening
  • Head-of-wall gaps with no fire seal
  • Damaged fire seals in risers and voids
  • Openings found when ceilings come down for a refit

Hotels like Falls of Lora Hotel (to the south-west of Black Crofts) are refurbished in phases, and each phase can open up compartment walls.

What to look for in a quote

  • The terms of the workmanship guarantee
  • Who will actually carry out the work
  • How joint depth will be controlled
  • Health and safety accreditation such as CHAS

Questions to ask before you appoint anyone

Fire stopping around Black Crofts: how the place shapes the job

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, using products tested for the way they’re used. Our part is installing the specified fire-rated sealant to its tested detail.

Halls and meeting rooms at places like Ardchattan Parish Church sometimes gain new services, and any compartment wall crossed needs the specified seal.

Black Crofts is about 40 miles north-west of Helensburgh, in Argyll and Bute. Any commercial site in Black Crofts is covered. 124 places across Argyll and Bute fall within our area, including Black Crofts. We also cover Glasgow, around 60 miles from Black Crofts.

Business premises anywhere in PA37 are within our area for service penetrations. If your building is just outside Black Crofts, we cover Ardchattan (1 mile north-east), North Connel (1 mile south-west), Connel (2 miles south-west), Benderloch (2 miles north-west) and Dunbeg (4 miles south-west). Where a site is remote or on an island, we plan travel and materials carefully, so include the location in your enquiry.

Local landmarks in Black Crofts

For rail, the closest station is Connel Ferry station, roughly 1.4 miles south-west. A little further out are Dunstaffnage Castle (3 miles west). Open spaces near Black Crofts include Lochan Dubh.

Map of Black Crofts © OpenStreetMap contributors

Black Crofts: questions and answers

Can you produce the fire-stopping design for a job in Black Crofts?

No, that sits with the designer, fire engineer or building control. We install fire-rated and intumescent sealant around service penetrations and linear gaps where it is specified, to the manufacturer’s tested detail.

Is Black Crofts off your patch?

Not at all. Black Crofts is within our area. Our area covers all of Scotland, cities, towns and islands alike. We plan jobs in smaller places so return trips are kept to a minimum.

Will you just go over the old sealant?

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

Are you fully insured?

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

What’s the quickest route to a quote?

You can use the quote form on this site; alternatively, speak to us on 01277 525 020 or email the details over. Photos, drawings or a joint schedule help us quote quickly.

What if there’s asbestos in the old mastic?

The duty to manage asbestos sits with the building’s dutyholder, so for older buildings we ask for the asbestos register first. Work pauses if suspect material is found, until it has been tested.

Does the weather affect the work?

For external joints, 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.

Accreditations

Trusted. Accredited. Insured.