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

Commercial washroom and wet-area sealing in Aith, Shetland Islands

Sealing in commercial washrooms, showers, kitchens and wet areas in Aith. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.

  • Failed sealant behind washroom basins
  • Discoloured joints around urinals and WC pans
  • Kitchen worktop joints that can’t be kept clean
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
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
12-month guarantee on our workmanship.
Covering the South East & Scotland
CHAS & Constructionline
Fully insured: £5m PL

Need washroom sealing in Aith?

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

Wet areas in Aith’s workplaces

Aith lies within about 1 mile of the sea, and coastal places often have hotels, guest houses and holiday accommodation with busy seasons. Bathrooms turned round daily in the busy months need sound, cleanable joints, so we plan the work for quieter weeks where possible. For an island location such as Aith, work is planned around ferry crossings and the weather. Photos and a room list let us plan the visit around the crossings.

In any commercial washroom in or near Aith, mouldy sealant is cut out rather than cleaned, and anti-mould sanitary silicone goes on clean, dry joints.

Aith is in the Shetland Islands. We cover Aith and the rest of the Shetland Islands, with the same fixed quotes and 12-month guarantee as everywhere else. Our the Shetland Islands coverage takes in 63 places, large and small.

Commercial sites across ZE2 are covered for washrooms and wet areas. Buildings on Marthastoon and Wirligert are within our area for washrooms and wet areas. Access to Aith is via the B9071. If your building is just outside Aith, we cover Kalliness (4 miles south-east), Voe (6 miles north-east), Easter Skeld (7 miles south), Dury (7 miles east) and Vassa (8 miles east). Further afield, our area takes in Lerwick (12 miles south-east), Sound (12 miles south-east), Scalloway (11 miles south) and Brae (8 miles north). Remote and island addresses take more planning, from travel and ferries to the weather, so give the site location in your enquiry.

What’s near Aith

Open spaces near Aith include Loch of North-House and Russaness Hill.

Map of Aith © OpenStreetMap contributors

Washroom sealing for commercial buildings in Aith

Accessible WCs, showers and changing areas have their own pinch points: shower trays, wet-room floor edges, basins and floor-to-wall junctions. Gaps in those places let water get under the floor or behind panels so they get particular attention. We work on urinals and WCs, vanity units and basins and kitchens and tea points, and the usual reasons a site gets in touch are sealant lifting along a tray edge and users noticing mouldy joints. Whether you call it commercial sealant work, mastic application or joint sealing, the work in Aith is the same: the right product in a properly prepared joint.

In smaller Scottish places like Aith, commercial washrooms are typically in hotels, pubs, schools, care homes and community halls. Mould grows into sealant in any wet room that doesn’t dry out, and the answer is removal and a fresh bead of anti-mould silicone.

Every job ends the same way: guaranteed. Our workmanship is backed for 12 months, and we explain exactly what that covers when we quote.

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

Commercial clients in Aith

For main contractors, we work as the sealant subcontractor on new-build and refurbishment projects. We work to your programme, your specification and your site rules, with CSCS-carded applicators on site.

If you look after buildings for someone else, you need clear quotes and clear reporting. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative.

General trades versus a specialist

Some joints are best left to specialists: for instance fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. Getting these wrong typically costs more in the end than doing them right.

For most general trades, sealant is a sideline. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint.

Diagnose, treat, sign off

Site rules come first: sign-in, induction and whatever permit system the building uses. Once we are cleared to begin, the joints are worked through in the order agreed with your site contact. Travel to smaller Scottish places like Aith is planned so the job is finished in one visit where possible, which is why we ask for photographs and a full list first. External joints need a dry spell as well.

  1. First, the phasing is agreed so facilities stay open.
  2. Anything behind the joints that needs another trade is flagged.
  3. Failed sealant and residue are stripped out.
  4. We reseal with the grade suited to each area.
  5. We confirm reopening times for each washroom.

Preparing the site

  • Have the specification and drawings to hand
  • Flag any permit to work we’ll need
  • Warn occupants and staff about the work

Getting a fixed quote

For a fixed quote, give us a call on 01277 525 020 or email the details over, telling us the site location and the nature of the job. You can also send details through our quote form.

Ask for a quote

Advice

Common problems we fix in Aith

Decorators’ caulk and general sealants sometimes end up where sanitary silicone belongs. They don’t stand up to constant water, and they stain, crack or wash out.

If one of these sounds familiar, it’s time for a closer look:

  • Resealing that didn’t last because the old bead stayed
  • Open joints along basins and vanity units
  • Urinal joints that look unhygienic
  • Split or peeling sealant at shower trays

Church halls and community buildings, such as those at Aith Church, have kitchens and toilets used by many groups, and their sanitary sealant works hard.

What to look for in a quote

  • Which product they’ll use, and why it suits the joint
  • Whether old or failed sealant will be cut out, not overlaid
  • Is depth set with backing rod, or bond-breaker tape in shallow joints?
  • Health and safety accreditation such as CHAS

Questions to ask before you appoint anyone

Different surfaces, different methods

IPS and cubicle panels

Swollen or delaminated boards need replacing, and any we come across will be pointed out.

Urinals and WC pans

Joints around urinals and WC pans take splashes, cleaning chemicals and knocks. Stained or split joints here trap smells and make the room look neglected.

Maintenance after handover

Keep the joints in good shape with a few simple steps:

  • Keep a record of which washrooms need attention
  • Inspect washroom sealant regularly
  • Mention any site permits or estates rules at quote stage
  • Report faulty extraction promptly

Each room goes back into use only when the sealant has cured enough. We’ll tell you when the wet areas can be used, and it helps if signs stay up until then.

Water getting behind IPS panels and vanity units can swell the boards. Once that happens, a reseal won’t fix them.

Questions we’re asked in Aith

Will all the washrooms in our Aith building be closed at once?

Not all at once. We take one block of facilities at a time. We will tell you the curing time for the product before we start.

Do you work on the island where Aith is?

Yes. Our area covers all of Scotland, cities, towns and islands alike, and that includes island locations such as Aith. Ferry times and the weather set the plan, so we ask for photographs and a full list first.

How much does the work cost?

It depends on the job: quantities, access, the product and any phasing. Call for a quote and we will price it properly.

What about RAMS and site documents?

Each site asks for different documents, so tell us what you need and we’ll confirm it when we quote.

How do you choose the sealant?

The specification comes first, if there is one. Without one, the joint decides: its movement, its surfaces and what it has to cope with.

Can you handle several sites?

Yes. We take on portfolio and planned maintenance work, with each site phased to suit its occupants.

How long will the new sealant last?

There isn’t a single answer, since movement, weather, cleaning and use all affect it. Regular checks let you plan resealing before leaks or damage.

Accreditations

Trusted. Accredited. Insured.