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 Shawbost, Na h-Eileanan Siar

Our CSCS-carded applicators take on fire-rated and intumescent sealing of service penetrations and linear gaps in Shawbost. Send details for a fixed quote.

  • Unsealed openings around new pipes and cables
  • Damaged fire seals in risers and voids
  • Head-of-wall gaps with no fire seal
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Signed off, with 12 months’ guarantee.
London, the South East & Scotland
CHAS accredited
Fully insured: £5m PL

Fire stopping near Shawbost

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

About our fire stopping in Shawbost

Opened ceilings and riser doors often reveal service openings nobody sealed. If a specification already covers those walls and floors, we can reseal to it using the product and detail it sets out. With no specification in place, the first step sits with your designer or fire engineer, not with us. If you’re dealing with fire-stopping items raised at inspection or handover and seals that don’t match their tested detail, we can put it right. Looking for mastic applicators who cover Shawbost? We’ve been sealing commercial buildings since 2005, with CSCS-carded applicators.

In smaller Scottish places like Shawbost, buildings with fire-resisting walls typically include schools, care homes, hotels and health centres. Those penetrations are closed with the product the specification names, built up as tested.

The 12-month guarantee is for workmanship rather than wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we’re clear about what is covered before work starts.

The Mastic Doctor team beside their liveried vans in front of an office building
Place
Shawbost (HS2)
Region
Na h-Eileanan Siar
Cover
12 months on every job
Quote
Fixed quote, scope in writing
Telephone
01277 525 020
Updated
3 November 2026

Site staff or a sealant specialist?

Redoing a failed joint typically costs more than getting it right at the outset, because the whole bead must be removed and the faces cleaned back again. That’s why many clients bring in a specialist from the beginning.

What you see is the finished bead, but most of the work is hidden. Correct depth, the right primer and a sealant matched to the movement are easy to get wrong without experience.

What we are called out for in Shawbost

When a seal departs from its tested detail, the evidence no longer covers it. An oversized gap, too shallow a bead, missing backing or two makers’ products combined are the usual culprits.

Things that normally lead to an enquiry:

  • Openings found when ceilings come down for a refit
  • Unsealed joints where partitions meet the slab
  • Unsealed openings around new pipes and cables
  • Old intumescent sealant that has split away

Wherever the building is near Shawbost, design and sign-off of fire stopping sit with the designer, fire engineer or building control; we install what has been specified.

What your quote should include

  • Will RAMS and insurance details be available?
  • What the guarantee covers, and for how long
  • Is the sealant right for the movement and the substrate?
  • Their plan for phasing and protecting the area

How to choose a sealant contractor

When something else is needed

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

  • Walls or floors that aren’t fire-resisting to begin with
  • Writing the fire-stopping specification
  • Issuing fire ratings or certificates for seals

Not sure which it is? You can give us a call on 01277 525 020 or email the details over and we’ll tell you honestly before you book.

What we seal

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

Fire stopping in Shawbost: the local picture

For an island location such as Shawbost, work is planned around ferry crossings and the weather. Photos of each opening and the specification mean the right products make the trip. 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. We install what’s specified, to the product’s tested detail.

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

Shawbost (Gaelic: Siabost) is in Na h-Eileanan Siar. Looking for fire stopping in Shawbost? We can help, as we do across Na h-Eileanan Siar. 87 places across Na h-Eileanan Siar fall within our area, including Shawbost.

Anyone looking for fire stopping in HS2 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. If your site is on Rathad Ghrinnibhat, Cnoc a Charnain and Sraid na H-Eaglaise or close by, we can quote for service penetrations. Just outside Shawbost, we also work in Bragar (2 miles north-east), Na Gearrannan (4 miles south-west), Carloway (4 miles south-west), Barabhas (7 miles east) and West Side (7 miles east). Where a site is remote or on an island, we plan travel and materials carefully, so the full address helps from the start.

Near you in Shawbost

Nearby you’ll also find Shawbost Folk Museum (0.7 miles north-east). The countryside around Shawbost includes Loch a' Bhaile.

Map of Shawbost © OpenStreetMap contributors

What happens if it’s left?

The longer openings stay, the more there tend to be: each new service adds to the list. Keeping on top of it after each round of works keeps the job small, rather than turning into a full building survey and reseal. Around smaller places like Shawbost, halls, stores and seasonal buildings may not be checked often, giving water time to get in. Resealing early avoids that.

Every site prices differently: the joint sizes, the specified product, access and working hours each have a bearing. Send the details and a fixed figure follows.

Why clients in Shawbost choose us

  • Fixed quotes based on photos, drawings or a visit
  • Constructionline member for supplier checks
  • Failed material removed, not covered up
  • 12-month guarantee on workmanship

See how commercial sealant jobs are priced and how we’re accredited.

Different surfaces, different methods

Drylining partitions

Service holes through plasterboard are frequently oversized or ragged. If the gap exceeds the tested range, sealant alone won’t do.

Plastic pipes

In a fire, plastic pipework melts away and leaves an opening. Some intumescent sealants are tested on smaller plastic pipes. We confirm material and size first and tell you if sealant isn’t the right product.

Shawbost: questions and answers

Do you decide the fire-stopping details for buildings in Shawbost?

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 Shawbost inside the area you cover, given it’s on an island?

Yes, Shawbost is within the area we cover. Our area covers all of Scotland, cities, towns and islands alike. Island work is planned around ferry crossings and the weather, so photos and a full list before we travel are essential.

How many days will you need on site?

It depends on the scope, though a typical visit normally takes longer where risers, ceiling voids or occupied floors have to be worked through in sequence. Larger or phased jobs take longer, and we’ll give you a timescale with the quote.

What hours do you work?

Mention the site’s hours and access windows in your enquiry, and we will schedule the work to suit. You can reach the office between 8am and 5pm, Monday to Friday.

Can you work while the building is occupied?

Yes, as long as we plan it. Tell us your site hours and access windows and we’ll plan around them.

Can you quote from photos?

That depends on the size and complexity of the job. Simple work can often be priced from photographs, and bigger or more complex jobs normally get a visit.

Is your workmanship covered by a guarantee?

Yes. The 12-month guarantee covers our preparation and application, though not damage or work by other trades.

How a job runs

Before any cutting starts, the area is protected: masking tape along the joint edges and sheeting over anything nearby. The work itself typically takes a single visit for a short list of penetrations, or a phased programme for a whole building, and we clear our waste as we work. Where we can, we combine work around Shawbost with other jobs nearby, to make the most of each trip. Let us know if your dates have any give.

  1. We ask for the product and detail your designer has specified.
  2. We sort the openings by the detail each one needs.
  3. Improvised fillers and failed sealant are removed.
  4. Mineral wool or other backing is fitted where required.
  5. We gun the sealant in to the specified depth around each service and tool it.
  6. We walk the completed areas with you and confirm the records agreed at quote stage.

Preparing the site

  • Point out any areas we must not close
  • Share the asbestos register for older buildings
  • Tell us what induction or permit system the site runs

Getting a fixed quote

The quickest route to a quote is a few photos and the site postcode. Upload them with the quote form, or phone 01277 525 020 or use the quote form to discuss it first.

Get a quick quote

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