The Mastic Doctor team standing beside their branded vans outside an office building
Na h-Eileanan Siar · Scotland

Fire-rated sealing and fire stopping in Carloway, Na h-Eileanan Siar

Fire-rated and intumescent sealing of service penetrations and linear gaps in Carloway and across Na h-Eileanan Siar. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.

  • Snag lists that include open service penetrations
  • Non-fire-rated filler around services
  • Old intumescent sealant that has split away
1
Send details
Drawings, photos, a joint schedule or a site visit.
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
Backed by a 12-month workmanship guarantee.
Covering the South East & Scotland
CHAS accredited
£5m public liability

Fire stopping for businesses in Carloway

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

Owners, agents and contractors

Blocks and communal areas make up much of the work for housing associations and agents. We phase the work so people keep access, with each stage agreed with your site contact.

Facilities managers want contractors who arrive with the paperwork sorted. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we will confirm with the quote.

How we handle fire stopping in Carloway

Most of our fire stopping work happens after the building is up. Each new cable, pipe or data route cut through a fire-resisting wall leaves an opening behind. We close the openings listed on your schedule, using the specified sealant and detail. We work on joints between fire-resisting walls and floors, linear gaps at wall heads and small duct penetrations where the tested detail allows, and the failures we’re asked to look at most are non-fire-rated filler around services and openings left by services added after handover. A single leaking joint is often how a building in Carloway first comes to us: we look at the rest while we’re there and tell you what we find.

Around smaller places such as Carloway, 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. It’s a plain promise: if our work fails within that year, we put it right.

Mastic Doctor team members lined up next to their branded vans outside an office building
Location
Carloway (HS2)
Region
Na h-Eileanan Siar
Guarantee
A 12-month guarantee
Price
A fixed quote before we start
Telephone
01277 525 020
Updated
3 November 2026

Do you need fire stopping in Carloway?

Some service penetrations were never sealed at all because they sat out of sight above a ceiling or inside a riser. Inspections, refurbishments and ceiling access normally bring them to light.

Any of the following is a good reason to get the joints checked over:

  • Fire seals cut back for extra cables and never reinstated
  • Fire stopping installed outside its tested range
  • Openings left by services added after handover
  • Non-fire-rated filler around services

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

Comparing quotes

  • Which product they’ll use, and why it suits the joint
  • Will CSCS-carded applicators be on site?
  • Are they CHAS accredited or on Constructionline?
  • What level of public liability insurance do they hold?

Questions to ask before you appoint anyone

FAQs: Carloway

Will you travel to Carloway on the island?

Yes, Carloway is within the area we cover. Every Scottish council area is within our area. Ferry times and the weather set the plan, so we ask for photographs and a full list first.

How do Scotland’s building standards affect fire-rated sealant in Carloway?

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. The detail is set by the designer and goes through the warrant process; we install the specified product to its tested detail.

How do you deal with asbestos in old sealant?

Managing asbestos is the dutyholder’s responsibility, so we will ask for the register before work on an older building. If anything suspect turns up, we stop until it’s tested.

Does the weather affect the work?

Outside, yes. Sealant needs a dry joint and a temperature within the product’s range, so damp, frosty or very cold days can stop external work. Internal work is rarely affected.

Can you follow the specification on our project?

Yes. Include it with the drawings when you ask for a quote, and we’ll price the work to it.

Do your applicators hold CSCS cards?

Yes. Should the site need card details in advance, let us know and we’ll send them with the quote.

What site paperwork can you supply?

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

Why it’s worth doing now in Carloway

An improvised seal can look finished while offering no tested performance. Correcting it means cutting it out and starting again with the specified product. Buildings that aren’t in daily use, such as halls and seasonal premises, may let water in unnoticed, giving water time to get in. Resealing early avoids that.

Access often affects the price as much as the sealing: easy-to-reach joints are quicker than those that need equipment to get to. Tell us how the joints are reached and call for a quote.

Why appoint us

  • Old sealant cut out, never sealed over
  • One number for every site we cover
  • Our applicators hold CSCS cards
  • Constructionline member for supplier checks

See how commercial sealant jobs are priced or our accreditations.

On site: what to expect

We schedule the visit to fit the site hours and access windows you give us. On the day, the work area is kept contained and tidy, and we check in with your contact before moving on to each new area. Where we can, we combine work around Carloway with other jobs nearby. Tell us how flexible your dates are.

  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. Mineral wool or other backing is fitted where required.
  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 what induction or permit system the site runs
  • Arrange parking or a loading space
  • Make sure the joints can be reached

Request a quote

Tell us about the building, the joints and when you need the work done, and a fixed quote will follow. The easiest way is to call the office on 01277 525 020 or send details through our quote form.

Get a quick quote

Related advice

Compartment walls and floors in Carloway

Being on an island, Carloway means planning around ferry times as well as the weather. The specification and photographs of each penetration let us bring the right products first time. 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, and products should be tested for their end use. Our part is installing the specified fire-rated sealant to its tested detail.

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

Carloway (Gaelic: Càrlabhagh) is in Na h-Eileanan Siar. Businesses, contractors and managing agents in Carloway use us for work on service penetrations. 87 places across Na h-Eileanan Siar fall within our area, including Carloway.

Business premises anywhere in HS2 are within our area for service penetrations. Close to Carloway, our area also takes in Na Gearrannan (1 mile north-west), Shawbost (4 miles north-east), Breasclete (4 miles south), Bragar (6 miles north-east) and Barabhas (10 miles north-east). For island and remote sites, we plan travel and materials carefully, so include the location in your enquiry.

Around Carloway

Well-known places in the area include Gearannon Blackhouse Village (1.4 miles north-west). The countryside around Carloway includes Loch Langavat.

Map of Carloway © OpenStreetMap contributors

When it isn’t the sealant

Sealant solves a lot, but not everything, and we’d rather tell you before you spend money. It won’t fix:

  • Writing the fire-stopping specification
  • Reviewing a building’s overall fire safety
  • Issuing fire ratings or certificates for seals

Not sure which it is? You can call 01277 525 020 or send details through our quote form and we’ll tell you honestly before you book.

Where we work in Carloway

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

What affects the price in Carloway

Sealant work doesn’t have a standard rate, because every site is different. What we look at:

  • The size and state of each joint
  • Quantities, in metres or numbers
  • Access and working height
  • Location, for remote and island sites

There’s no price list, because the scope varies so much from one building to the next. Call for a quote.

Before you send an enquiry

The more we know, the firmer the quote. Helpful details to send:

  • Any specification or named product
  • Drawings or a marked-up plan, if available
  • The postcode of the building
  • Clear photographs of the problem areas

A handful of photographs and a postcode is the fastest way to a quote. Send them through the quote form, or call the office on 01277 525 020 or use the quote form if you’d rather talk the job through.

Accreditations

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