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

Fire stopping in Hillswick

Sealant work in Hillswick for main contractors, managing agents and facilities managers: fire-rated and intumescent sealing of service penetrations and linear gaps, quoted at a fixed price.

  • Old intumescent sealant that has split away
  • Unsealed penetrations discovered above suspended ceilings
  • Open linear gaps along the top of fire-resisting walls
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
12-month guarantee on our workmanship.
South East, London & Scotland
CHAS & Constructionline
£5m public liability

Need fire stopping in Hillswick?

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

When it isn’t the sealant

Not every problem is a sealant problem, and we’d rather tell you before you spend money. These need a different solution:

  • Plastic pipes whose detail calls for a collar or wrap
  • Construction that lacks the fire resistance the seal relies on
  • Writing the fire-stopping specification

If you are not sure, just speak to us on 01277 525 020 or email the details over and we’ll give you a straight answer before you book.

Surfaces we seal

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

Fire stopping in Hillswick, done properly

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. Site teams most often ask us about seals that don’t match their tested detail and head-of-wall gaps with no fire seal, across linear gaps at wall heads, service gaps in risers and pipe penetrations. One point of contact handles commercial sealant work in Hillswick from the first photos to the final walk-round, for single jobs and planned programmes alike.

Around smaller places such as Hillswick, 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.

Guaranteed is the last step of every job. Our workmanship is backed for 12 months, and the quote explains what it covers.

Where
Hillswick (ZE2)
Wider area
Shetland Islands
Guarantee
A 12-month guarantee
Quotes
Quoted before any work starts
Call
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

Hillswick: questions and answers

Can you take on a job in Hillswick, on the island?

Yes, Hillswick is within the area we cover. We cover the whole of Scotland. We plan island jobs around the ferry and the forecast, and bring everything the job needs on the first crossing.

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

No, that sits with the designer, fire engineer or building control. Our part is installing the specified product to its tested detail, and telling you if the detail calls for something other than sealant.

When is resealing likely to be due?

There isn’t a single answer, since movement, weather, cleaning and use all affect it. Regular inspection is the best way to catch problems early.

Are you CHAS accredited and on Constructionline?

Yes. CHAS accredited, Constructionline member, and our applicators hold CSCS cards.

Does the weather affect the work?

It can, when the joints are outside. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so external work may be moved if conditions aren’t right. Indoors, the weather is rarely a problem.

What happens if old sealant might contain asbestos?

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

What hours do you work?

Mention the site’s hours and access windows in your enquiry, and we’ll schedule the work to suit. Our office runs Monday to Friday, 8am until 5pm.

Why deal with it now?

Open service penetrations matter on ordinary days, not just in a fire: smoke, noise and draughts pass through them every day. The specified fire seal closes the gap for all of these and the building feels the difference. In Scotland, wind-driven rain finds a failed joint quickly, so it’s worth renewing joints around Hillswick before they leak.

A quote for service penetrations depends on quantities, condition and access. Call for a quote.

Why choose Mastic Doctor in Hillswick

  • CHAS accredited
  • Failed material removed, not covered up
  • Fully insured, including public liability cover
  • Work carried out by CSCS-carded applicators

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

Fire-rated sealing for Hillswick buildings

For an island location such as Hillswick, 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, with products tested for that end use. We install fire-rated sealant to that tested detail where it is specified.

Older community buildings such as Northmavine Parish Church and Churchyard that have been rewired or given new heating can have service gaps through walls worth checking against the specification.

Hillswick is in the Shetland Islands. We send applicators to Hillswick for service penetrations. Hillswick is one of 63 places in the Shetland Islands on our list for service penetrations.

Anyone looking for fire stopping in ZE2 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. Just outside Hillswick, we also work in Urafirth (1 mile north-east), Braehoulland (3 miles north-west), Hogaland (4 miles east), Sullom (5 miles south-east) and Ollaberry (5 miles east). Where a site is remote or on an island, travel and materials need planning ahead, so include the location in your enquiry.

Landmarks near Hillswick

Recent enquiries here include premises near The Booth pub. Well-known places in the area include Tangwick Haa Museum (3.4 miles west). The countryside around Hillswick includes Ness-houlls Water.

Map of Hillswick © OpenStreetMap contributors

How a job runs

The first thing on site is a walk round with your contact, agreeing which joints are in scope, where to start and what must stay open. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. For work around Hillswick, we aim for one trip, so photos, sizes and a full list matter. External joints need a dry spell as well.

  1. First we go through the drawings, schedule or specification for the seals.
  2. Every penetration is compared with its detail: wall or floor type, service, gap size and depth.
  3. Unsuitable fillers and loose debris are taken out of each opening.
  4. We fit the backing the detail asks for, to the stated depth.
  5. Fire-rated or intumescent sealant is gunned in to the specified depth, then tooled.
  6. If an opening needs something other than sealant, we tell you instead of improvising.

Getting the site ready

  • Confirm the product named in the specification
  • Arrange parking or a loading space
  • Tell us what induction or permit system the site runs

Getting a fixed quote

Pricing a project or setting a maintenance budget? We’ll quote against your scope and drawings you can plan around. For a chat about it beforehand, call the office on 01277 525 020 or use the quote form.

Get a quick quote

Related advice

Cost factors for service penetrations

We price every job individually. The main factors are:

  • Distance, for remote addresses
  • Backing rod, priming and other preparation
  • Site requirements such as inductions and permits
  • Whether old sealant has to be cut out first

No two sites price the same: the joint sizes, the specified product, access and working hours each have a bearing. A fixed quote follows once we understand the job.

Sending details for a quote

For an accurate fixed quote, we need a clear picture of the site. Useful things to include:

  • Where the site is, with the postcode
  • The type of building and who uses it
  • Clear photos of the problem areas
  • Approximate linear metres or a joint schedule

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 email us to discuss it first.

Common problems we fix in Hillswick

Most open service penetrations are left by later work. A new cable pulled by an electrician, a pipe rerouted by a plumber or a data run drilled through a riser leaves an opening that nobody returns to. Over a few years of fit-outs, a wall can collect a lot of these.

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

  • Unsealed joints where partitions meet the slab
  • Old intumescent sealant that has split away
  • Improvised or mixed-product fire seals
  • Snag lists that include open service penetrations

In a hotel such as St Magnus Bay Hotel (less than half a mile west of Hillswick), new pipework or cabling through bedroom and corridor walls needs sealing with the specified product.

Comparing quotes

  • Who will actually carry out the work
  • How long is the guarantee, and what does it include?
  • Is the sealant right for the movement and the substrate?
  • Health and safety accreditation such as CHAS

Questions to ask before you appoint anyone

Keeping the joints sound

For the best life from the joints:

  • Ask which product is in place before decorating
  • Treat an open penetration as a priority repair
  • Put resealing into every M&E and fit-out package
  • File the specified details where the next contractor can find them

Keep the product data and installation details with the building’s fire safety information. Anyone resealing later needs to know which product and detail were used.

Keep a register of where seals are and what they are made of. When a new service goes through, everyone knows which product and detail to match, and it helps at inspections.

Accreditations

Trusted. Accredited. Insured.