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

Washroom Sealing in Gulberwick

Commercial sealant work in Gulberwick for contractors, FMs and building owners: sealing in commercial washrooms, showers, kitchens and wet areas, quoted at a fixed price.

  • Kitchen worktop joints that can’t be kept clean
  • Urinal joints that look unhygienic
  • Resealing that didn’t last because the old bead stayed
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
Covering the South East & Scotland
Constructionline member
£5m public liability

Washroom sealing for Gulberwick sites

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

Should maintenance staff do it?

Site maintenance staff can often handle a short internal joint. The usual problems come from preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.

For most general trades, sealant is a sideline. A specialist prepares properly, controls joint depth and picks a product with the right movement class, which is what makes a joint last.

Washroom sealing for commercial buildings in Gulberwick

Our washroom work covers offices, hotels, schools and colleges, leisure centres and gyms, clinics and care homes, plus the kitchens and tea points that go with them. Product and method follow how hard each area is used and cleaned. If you have black mould inside silicone joints that cleaning can’t shift and open joints at the base of cubicle panels, we can help, on showers, trays and wet room floors, accessible toilets and changing rooms and kitchens and tea points alike. For commercial sealant work in Gulberwick, you deal with one contact from quote to sign-off, whether it’s one building or several.

Hotels and holiday accommodation in rural Scotland have busy and quiet seasons, so washroom work is often best planned for quieter months.

Every job is signed off with a 12-month guarantee. It’s a plain promise: if the work we did fails within twelve months, we return to fix it.

Place
Gulberwick (ZE2)
Region
Shetland Islands
Guarantee
12 months on our workmanship
Quote
A fixed quote before we start
Telephone
01277 525 020
Updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

Keeping Gulberwick washrooms open while we work

With the shore within about 1 mile, Gulberwick counts as a coastal location, and places by the sea often rely on visitors, so their hotels and holiday lets see heavy seasonal use. Heavy seasonal use is hard on shower and basin sealant, so resealing in the quieter months keeps rooms ready. For an island location such as Gulberwick, work is planned around ferry crossings and the weather. Photos and a room list let us plan the visit around the crossings.

Where you’re responsible for a hall attached to a building such as Gulberwick Mission Church, its kitchen and toilets need sealant that stays cleanable. On an industrial estate such as South Gremista Industrial Estate (2.9 miles north-east of Gulberwick), staff toilets, showers and canteens are where sanitary sealant takes the most wear. For a site such as Gilbert Bain Hospital, 2.5 miles north-east of Gulberwick, sanitary joints in clinical areas need sound, cleanable sealant and a careful method.

Gulberwick is in the Shetland Islands. We send applicators to Gulberwick for washrooms and wet areas. 63 places across the Shetland Islands fall within our area, Gulberwick among them.

We take on washrooms and wet areas across the ZE2 postcode area. If your site is on Hillside Brae, Hillside Park and Lower Hillside or close by, send details and we’ll quote for washrooms and wet areas. Just outside Gulberwick, we also work in Sound (2 miles north-east), Scalloway (2 miles west), Lerwick (3 miles north-east), Gremista (3 miles north-east) and Grindiscol (4 miles east). Gulberwick ranks among the main centres of the Shetland Islands, with offices, shops, schools and other public and commercial buildings, and we cover them all. Where a site is remote or on an island, travel and materials need planning ahead.

Around Gulberwick

Nearby you will also find Scalloway Museum (2.5 miles north-west) and Gilbert Bain Hospital (2.5 miles north-east). For a walk, there’s Hill of Berry and Flossy Loch.

Map of Gulberwick © OpenStreetMap contributors

Gulberwick: questions and answers

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

Yes. We work across every Scottish council area, and that includes island locations such as Gulberwick. Ferry times and the weather set the plan, so we ask for photos and a full list first.

Will the toilets in our Gulberwick building be out of use?

Rarely all at once: work is phased so some facilities are always available. We’ll tell you the curing time for the product before we start.

Can the sealant be colour-matched?

That depends on the product. Some ranges are wide, others limited, so we’ll confirm the colours available for the specified product with the quote.

What do you charge?

Each job is quoted on its own details. To get one, speak to us on 01277 525 020 or send details through our quote form.

Does weather matter for sealant work?

Outside, yes. Sealant needs a dry joint and a temperature within the product’s range, so frost, rain or cold mornings can delay outside work. Internal work is rarely affected.

How long does a typical visit take?

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

What if there’s asbestos in the old mastic?

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. We don’t remove asbestos-containing materials.

Why it’s worth doing now in Gulberwick

Bleaching black sealant may lighten it for a few days, but the mould is rooted in the silicone and comes back. Replacement deals with the cause in the joint and your cleaning team stops chasing it. In Scotland, wind-driven rain finds a failed joint quickly, and for a smaller place like Gulberwick, a repair visit takes planning, so it’s better to act early.

We don’t publish prices, since every building and every scope is different. Call for a quote.

Why us?

  • A range of standard colours, depending on the product
  • CHAS accredited
  • Fully insured
  • Over 20 years of commercial sealing

Take a look at what affects the cost and our accreditations.

When something else is needed

Part of a good diagnosis is knowing where sealant stops. We will tell you if the real problem is any of the following:

  • Mould caused by poor ventilation, which will return until the extract is fixed
  • Fittings that move too much to hold a bead
  • Panel boards already damaged by water

Not sure which it is? You can phone 01277 525 020 or email drawings and photos and we’ll tell you honestly.

Joints and surfaces we work on

  • Urinals and WCs
  • IPS panels and cubicles
  • Accessible toilets and changing rooms
  • Vanity units and basins
  • Showers, trays and wet room floors
  • Kitchens and tea points

Our process

We schedule the visit to fit the site hours and access windows you give us. While we’re working, the area stays contained and tidy, and we check in with your contact before moving on to each new area. Travel to smaller Scottish places like Gulberwick is planned so the job is finished in one visit where possible, which is why we ask for photos and a full list first. External joints need a dry spell as well.

  1. First, the phasing is agreed so facilities stay open.
  2. Leaks, loose panels or damp are pointed out first.
  3. Old sealant is stripped and the faces prepared.
  4. The right sanitary or food-safe sealant is applied.
  5. We confirm reopening times for each washroom.

Before we start on site

  • For older buildings, check the asbestos register before work
  • Warn occupants and staff about the work
  • Explain the parking and delivery arrangements

Quotes

We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To start the process, give us a call on 01277 525 020 or send photos by email.

Ask for a quote

Related advice

Looking after the joints

To get the most from the new sealant:

  • Keep washrooms out of use until we say the sealant has cured
  • Add sealant joints to planned maintenance checks
  • Clear standing water from shower floors where possible
  • Report split joints at trays and basins early

We hand each area back once the silicone has had the cure time the product needs. You’ll be told when showers and basins can be used again and signage stays in place until that time.

Mouldy sealant only gets harder to ignore, and complaints follow. Replacing it early keeps the job to a reseal.

Surface by surface

Wet-room floors and floor-to-wall joints

Floor edges in wet areas are where water most often escapes. We reseal the floor-to-wall junctions and around drains where sealant is used.

Changing rooms and gyms

Showers, floor edges and vanity units in changing rooms all need sound sealant and we look at them as one job.

Accreditations

Trusted. Accredited. Insured.