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

Fire-rated sealing and fire stopping in Tripwell, Shetland Islands

Fire-rated and intumescent sealing of service penetrations and linear gaps across Tripwell, by CSCS-carded applicators. CHAS accredited and fully insured.

  • Old intumescent sealant that has split away
  • Hidden openings found during inspections
  • Fire-stopping items raised at inspection or handover
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
London, the South East & Scotland
Constructionline member
£5m public liability

Need fire stopping in Tripwell?

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

From enquiry to sign-off

A typical day starts with protection: masking tape along the joint edges and sheeting over anything nearby. The work itself usually takes anything from one day to a planned run of visits, depending on the number of seals and the access, and our waste is bagged and taken away as we go. For work around Tripwell, we aim for one trip, which is why we ask for photographs and a full list first. External joints need a dry spell as well.

  1. We read the specification, drawings or penetration schedule you send and raise any questions before we price.
  2. On site, each opening is checked against the tested detail it is meant to follow.
  3. Unsuitable fillers and loose debris are taken out of each opening.
  4. Mineral wool or other backing goes in wherever the detail asks.
  5. We apply the specified sealant to the depth and around the services as the detail shows.
  6. Openings that need a collar, wrap, batt or other product are flagged to you rather than filled with sealant.

Before we start on site

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

Ask for a quote

Pricing a project or setting a maintenance budget? We’ll quote against your scope and drawings you can plan around. If you have questions first, call the office on 01277 525 020 or use the quote form.

Ask for a quote

Read more

Fire stopping in Tripwell

No fire sealant works on its own: its test evidence covers one product in one kind of wall or floor, with set services, gaps, depths and backing. We match each opening to that detail before any sealant goes in, and we say so if it doesn’t fit. Most enquiries involve snag lists that include open service penetrations and hidden openings found during inspections, on joints between fire-resisting walls and floors, small duct penetrations where the tested detail allows and service gaps in risers. Most enquiries from Tripwell start with one failed joint and grow into a wider look at the building: we look at the rest while we are there and tell you what we find.

Hotels and care homes around smaller places like Tripwell 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.

Work we carry out comes with a 12-month guarantee. Should something we installed fail, call 01277 525 020 or email us and we will come back to it.

Place
Tripwell (ZE2)
Wider area
Shetland Islands
Guarantee
12 months on our workmanship
Quotes
Fixed quote, scope in writing
Call
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

Looking after the joints

Regular inspection catches problems early. Specifically:

  • Flag new cables with no seal around them
  • Ask the designer to confirm details early on refits
  • Don’t let anyone top up a fire seal with the wrong product
  • Make fire stopping part of every scope that crosses a fire-resisting wall

Allow the manufacturer’s stated cure time before boxing in or decorating. Not every fire-rated product can be painted.

Ask every contractor who works in risers or voids to report openings they create. It costs little and catches breaches early.

Questions about Tripwell

Will you travel to Tripwell on the island?

Yes. Islands are part of our area, Tripwell included. We group island work where we can and plan around the crossings.

Do you design the fire stopping for buildings in Tripwell?

No. Fire-stopping design and sign-off belong to the designer, principal 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 the work guaranteed?

Yes. The 12-month guarantee covers our preparation and application, but not damage, misuse or other trades’ work.

Is any job too small?

Single areas, one-off repairs and whole buildings are all quoted the same way: details, then a fixed price, then sealing, then a 12-month guarantee.

How long does a typical visit take?

The duration is planned around your programme and the access we’re given. You will have an expected duration with the quote.

What happens if old sealant might contain asbestos?

Asbestos is possible in some older mastics, particularly in buildings from before 2000. Before we disturb old sealant in an older building, we ask to see the asbestos register or survey, and work stops until any suspect material has been tested. Removing asbestos is a job for asbestos specialists, not us.

Do you work to architects’ specifications?

Yes. Include it with the drawings when you ask for a quote, and the quote will be based on it, flagging anything that needs clarifying.

What sealant work can’t fix

A proper diagnosis includes knowing what sealant can’t do. You will hear from us if the cause turns out to be one of these:

  • Large openings beyond what any sealant detail covers
  • Issuing fire ratings or certificates for seals
  • Construction that lacks the fire resistance the seal relies on

If in doubt, speak to us on 01277 525 020 or send details through our quote form and we will say what we think before you book.

Joints and surfaces we work on

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

Why act early in Tripwell

The longer openings stay, the more there tend to be: each new service adds to the list. A schedule that is dealt with regularly stays manageable, rather than turning into a full building survey and reseal. Renewing every failing joint on one visit is the sensible approach for a place like Tripwell. Photos of each area help us quote the whole job.

Small jobs and large programmes are priced from the same things: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote and we’ll put a fixed figure on it.

What you get with us

  • 12 months’ guarantee on every job
  • Work to your specification and the manufacturer’s guidance
  • Failed material removed, not covered up
  • Over 20 years of commercial sealing

See what affects the cost or our accreditations.

Common problems we fix in Tripwell

On a busy project, programme pressure can mean fire stopping is rushed or left to whichever trade is closest. That is how unsuitable products and improvised details end up in compartment walls and later need putting right.

Look out for the following:

  • Snag lists that include open service penetrations
  • Fire-rated sealant that has cracked or shrunk back
  • Fire stopping installed outside its tested range
  • Open linear gaps along the top of fire-resisting walls

Buildings near Tripwell get the fire-rated product that’s specified, installed to its tested detail.

Questions to ask before you book

  • Will RAMS and insurance details be available?
  • Can the work be phased to keep areas open?
  • The terms of the workmanship guarantee
  • Will CSCS-carded applicators be on site?

How to choose a sealant contractor

Compartments and services around Tripwell

For an island location such as Tripwell, work is planned around ferry crossings and the weather. We need the specification and a count of penetrations before we sail. 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 proprietary products, intumescent ones included, tested for their end use. We install fire-rated sealant to that tested detail where it is specified.

For a building such as Whalsay Parish Church, new heating or data runs are the usual reason penetrations need sealing.

Tripwell is about 15 miles north of Lerwick, in the Shetland Islands. Businesses, contractors and managing agents in Tripwell use us for work on service penetrations. Tripwell is one of 63 places in the Shetland Islands on our list for service penetrations.

If you need fire stopping in ZE2, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. Among the streets we cover are Houll and Tripwell, and sites on any of them can send details for a fixed quote. Close to Tripwell, our area also takes in Brough (1 mile north-east), Hamister (1 mile south-west), Huxter (1 mile south), Symbister (1 mile south-west) and Sandwick (2 miles south-west). Island and remote sites need extra planning, with travel, ferry crossings where needed and weather to allow for, so give the site location in your enquiry.

Local landmarks in Tripwell

Open spaces near Tripwell include Setter Hill and Loch of Houll.

Map of Tripwell © OpenStreetMap contributors

What sets the cost

Each job is priced on its own details. The main factors are:

  • Any access equipment needed
  • How much there is to seal
  • Whether old sealant has to be cut out first
  • The product specified

Access can matter as much as the joints themselves: joints within easy reach take less time than ones that need access equipment. Tell us how the joints are reached and call for a quote.

Sending details for a quote

We can often quote from photos and a few details. Please tell us:

  • Any specification or named product
  • The site address and postcode
  • The asbestos register, for older buildings
  • Any dates the work must fit around

Tell us about the building, the joints and when you need the work done, and we’ll put a fixed quote together. To get it moving, ring 01277 525 020 or email a schedule or drawings.

Accreditations

Trusted. Accredited. Insured.