Washroom Sealing contractors in Firth
Looking for washroom sealing in Firth? Send us the details for a fixed quote, backed by a 12-month guarantee on the work.
- Sealant stained black around basins and showers
- A new bead over an old one coming away
- Urinal joints that look unhygienic
Washroom sealing near Firth
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Commercial clients in Firth
Facilities managers want contractors who arrive with the paperwork sorted. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we’ll confirm them with the quote.
Main contractors use us as their sealant subcontractor, on new build and refurbishment alike. Programme, specification and site rules come first, with CSCS-carded applicators on site.
Washroom sealing for commercial buildings in Firth
When mould has spotted a silicone joint, more cleaning won’t remove it. The mould has rooted into the silicone itself so it returns whatever the cleaning regime. Only replacement gets rid of it for good. We work on vanity units and basins, kitchens and tea points and IPS panels and cubicles, and the usual reasons a site gets in touch are sealant laid over old silicone and now peeling and washrooms that look worn because of the sealant. Searching for sealant specialists in Firth? Mastic Doctor has worked for contractors, FMs and building owners since 2005, CHAS accredited and a Constructionline member.
Hospitality around smaller Scottish places like Firth tends to be seasonal, so washroom work is often best planned for quieter months.
Our 12-month guarantee is about workmanship, not wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we spell out the cover before we begin.
- Place
- Firth (ZE2)
- Region
- Shetland Islands
- Guarantee
- 12 months on every job
- Quote
- A fixed quote before we start
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026
Our process
Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Joint faces are cleaned back to sound, dry surfaces, primer goes on where the manufacturer specifies it, and each bead is tooled to a neat concave finish. Jobs near Firth are often grouped with others in the same area. Let us know if your dates have any give.
- We inspect each washroom and record the joints to be resealed.
- The fixed quote sets out the rooms, the products and the phasing.
- The whole of the old bead is removed.
- Each joint is cleaned and left dry.
- New anti-mould sealant goes in and is tooled neat.
- Rooms reopen after the cure time.
Before we start on site
- Tell us your opening times and when work is allowed
- Make sure the joints can be reached
- Tell us which areas need to stay in use
Request a quote
Specifications, drawings and tender packages are welcome with any enquiry, and we will price the work to it. For smaller jobs, photos and a description will do.
Advice
More services for Firth
Signs you need washroom sealing in Firth
Occasionally a joint keeps failing because of a problem behind it: a loose panel, a leaking waste or water coming through the wall. We look for it before resealing and say if it needs a plumber or another trade.
If one of these sounds familiar, it’s time for a closer look:
- Complaints from staff, guests or users about tired washrooms
- Discoloured joints around urinals and WC pans
- Open joints along basins and vanity units
- Open joints at the base of cubicle panels
For buildings around Firth, washrooms can be done in phases so some facilities are always open.
Before you book anyone
- Is the sealant right for the movement and the substrate?
- How the existing material will be dealt with
- Whether primer will be used where the manufacturer specifies it
- Will RAMS and insurance details be available?
What sealant work can’t fix
Before quoting, we check that sealant is the right answer. It isn’t the answer for:
- A dripping waste or valve behind a panel
- Leaks through tanking or membranes below the finishes
- Loose panels, vanity units or tiles, which need fixing first
If you are not sure, just ring 01277 525 020 or send details through our quote form and we will give you a straight answer.
Joints and surfaces we work on
- Vanity units and basins
- IPS panels and cubicles
- Kitchens and tea points
- Showers, trays and wet room floors
- Accessible toilets and changing rooms
- Urinals and WCs
Looking after the joints
To get the most from the new sealant:
- Clean sealant with gentle products and a soft cloth
- Squeegee showers and trays after busy periods
- Keep a record of which washrooms need attention
- Mention any site permits or estates rules at quote stage
Each room goes back into use only when the sealant has cured enough. You will be told when showers and basins can be used again and signage stays in place until that time.
A split joint at a shower tray can leak for a long time before anyone sees it. By then, other trades may be needed as well, so reseal when you first spot a split.
Keeping Firth washrooms open while we work
Firth sits close to the coast, within about 2 miles, and seaside hospitality usually has a peak season that works washrooms hard. Showers and en suites in constant use are where silicone moulds and splits first, so we plan the work for quieter weeks where possible. Being on an island, Firth means planning around ferry times as well as the weather. Knowing how many washrooms there are lets us plan the days on the island.
Washrooms near Firth get the old silicone stripped out and a fresh anti-mould bead on dry joints.
Firth is in the Shetland Islands. Any commercial site in Firth is covered, whether it’s a single job or part of a planned programme. We work across 63 places in the Shetland Islands, large and small.
Postcode districts covered here: ZE2 for washrooms and wet areas. We cover commercial and managed buildings on Midlea, Leaside and Sandside and the roads nearby. Nearby places we also cover include Mossbank (1 mile north-east), Scatsta (4 miles west), Vidlin (6 miles south), Sullom (6 miles west) and Burravoe (6 miles north-east) for washrooms and wet areas. Remote and island addresses take more planning, from travel and ferries to the weather, so mention the location when you give us a call on 01277 525 020 or email us.
What’s near Firth
Not far away are Loch of Bordigarth.
Why act early in Firth
Washrooms shape how visitors judge a building. Visitors notice black sealant before they notice much else. Fresh sanitary silicone lifts a room with very little disruption. Renewing every failing joint on one visit is the sensible approach for a place like Firth. Photos of each area help us quote the whole job.
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.
Why appoint us
- Fully insured, including public liability cover
- CSCS-carded applicators
- Over 20 years of commercial sealing
- A Constructionline member, so easy to vet
Take a look at our cost guide or our accreditations and insurance.
Questions about Firth
Will the toilets in our Firth 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.
Do you work on the island where Firth is?
Yes. Islands are part of our area, Firth included. Island work is planned around ferry crossings and the weather, so photographs and a full list before we travel are essential.
Who decides which product is used?
Where there’s a specification, we use the product it names. If not, we choose for the movement, the surfaces and the conditions, in line with the manufacturer’s guidance.
How do you deal with asbestos in old sealant?
The duty to manage asbestos sits with the building’s dutyholder, so we’ll ask for the register before work on an older building. If anything suspect turns up, we stop until it’s tested.
Is it OK to put new silicone on top of the old?
We always remove it. Fresh silicone can’t key to an old bead, so sealing over it soon peels.
Can washrooms stay open while you work?
The work is phased so users always have somewhere to go. We work through the building a room or section at a time. Tell us your site hours and access windows and we will plan around them.
Is it possible to just clean mouldy silicone?
Not for long. Mould grows into the sealant itself so cleaning only lightens it for a while. Replacing the bead is the lasting answer.