Highland · Scotland
Commercial Sealant in Dunnet
Sealant work for offices, hotels, washrooms and commercial buildings in Dunnet, with a 12-month guarantee on every job. Call for a quick quote.
- Water marks on ceilings under bathrooms
- Washroom sealant that looks dirty however often it’s cleaned
- Whole floors of tired en suites
How we handle commercial sealant in Dunnet
In a hotel, office or washroom, failed sealant is more than an eyesore. It’s a cleaning problem, a leak risk and something guests and staff notice. Our applicators renew sealant across washrooms, welfare areas, kitchens and guest bathrooms. We work on rental portfolios, office washrooms & kitchens and retail & leisure sites, and common reasons people get in touch are failed floor-level joints in accessible wet rooms and failed joints in office kitchens and tea points.
For a place like Dunnet, the journey and timings are planned in advance, so it can be fitted around bookings or opening times where possible.
Whatever the size of the job, you get the same 12-month guarantee in Dunnet and across Highland.

- Where
- Dunnet (KW14)
- Region
- Highland
- Cover
- One year on every job
- Price
- A clear price before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Why it’s worth doing now in Dunnet
Replacing a whole washroom takes time, money and several trades. When the fittings are sound, renewing the sealant brings it back with far less upheaval. If something else is wrong, we will say so. When the nearest tradesperson is a drive away, it’s tempting to leave a small leak, but water through a failed joint keeps working away until it’s fixed.
No two jobs are quite the same, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we will explain the quote if you ask.
What you get with us
- Fully insured
- Any old sealant cut out fully, not covered over
- 20+ years of sealant experience
- Anti-fungal silicone where joints get wet
Take a look at what affects the cost and customer reviews.
The process
Good joint work is mostly preparation, so that is where we spend the time. Joints are cleaned back and dried before anything new goes in. All told, the work takes anything from a few hours to several days, depending on the number of rooms. Somewhere like Dunnet may be a longer drive, and the journey is planned ahead. Mention tracks, gates, ferries or anything else about the route.
- We agree a programme with you: which rooms, in what order, at what times.
- We go through your site’s paperwork needs, such as RAMS, before work begins.
- In each room, the old bead comes out and the joint is cleaned and treated.
- Anti-fungal sanitary silicone goes into wet areas, with suitable sealant elsewhere.
- Each finished area is checked with you and given a cure time.
Before we arrive
- Let us know about earlier repairs to the joints
- Tell us if parking is tricky
- Mention any tricky access
Get a quote
We do not publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, drop us a line at info@mrmastic.co.uk.
Advice
FAQs for Dunnet
Do you cover Dunnet for commercial sealant?
Yes, Dunnet is within the area we cover. We work across all of Scotland. You can send an email to info@mrmastic.co.uk and tell us what needs doing.
What guarantee comes with commercial sealant in Dunnet?
Every job comes with our one-year guarantee, wherever it is. We’re fully insured, and an ARBOMaster approved applicator.
Can you work around guests in a hotel?
Yes. We agree a batch of rooms for each visit, working around check-out and check-in where possible.
Will it make a mess?
No. We work neatly, protect the area around the joints and tidy up afterwards.
What sealant do you use?
The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. We use products from Arbo and Everbuild.
Can you quote for more than one area?
Yes. Tell us about everything you’d like done and we will quote it together.
When can guests or staff use the shower again?
Follow the cure time we give you, which is normally around 24 hours. Planning the order of rooms keeps that downtime manageable.
Are you an approved applicator?
Yes. Mr Mastic is an ARBOMaster approved applicator, and we’re fully insured.
What commercial sealant looks like in Dunnet
For seaside hotels, guest houses and holiday lets around Dunnet, heavy use in the busy months is hard on washroom and kitchen sealant, and any building work there should leave fire-rated joints made good. Private landlords in Scotland must meet the Repairing Standard, and keeping sealant sound across a portfolio is part of that.
In and around Dunnet, as anywhere, good commercial sealant starts with a clean, dry, properly prepared joint. For buildings such as Dunnet Church, halls and community kitchens see heavy use, and their sealant shows it.
Dunnet is about 7 miles east of Thurso, in Highland. Every kind of property in Dunnet can book us for commercial sealant, old or new, large or small. Every job comes with our one-year guarantee. Our Highland coverage runs to 253 places, and Dunnet is one of them.
Jobs for commercial sealant in KW14 is quoted and booked the same way as anywhere else. We also cover the places around Dunnet: Brough (2 miles north), Castletown (3 miles south-west), Scarfskerry (3 miles north-east), Rattar (3 miles north-east) and Murkle (4 miles south-west). Remote and island addresses need a little more planning, so tell us where you are when you ask for a quote.
Near you in Dunnet
Well-known places in the area include Westside Croft (0.5 miles north-west) and Castle of Mey (4.5 miles east). For a walk, there’s St John's Loch.
How the job changes by surface
Welfare facilities
Welfare facilities, shower rooms and changing areas need to stay usable. Work can be split into sections.
Student & care accommodation
Care homes need careful planning around residents, with each bathroom handed back with its cure time.
How we quote for commercial sealant
The price is agreed before any work begins. It’s based on:
- Any working-time requirements on site
- Any mould that needs treating
- The type of sealant required
- The old material and how stubborn it is
What it costs depends on the amount of work, how much old material has to come out and access to the work. We give a clear quote before we start.
Helping us quote
When you call or email, it’s useful to know:
- How we’d reach the joints
- The type of property
- If someone has resealed it before
- Where the property is
Asking for a quote is easy: let us know the job and the location and its rough size. A few pictures by email make the job easier to understand, and we will come back to you with a quote.
Aftercare tips
Looking after new joints is easy:
- Pass on the cure time to whoever cleans the rooms
- Check the joints during routine room inspections
- Log resealing so you know what’s due
- Leave squeegees in busy showers
Extract fans need to work. In internal bathrooms, a weak or broken fan lets moisture linger, and mould comes back faster without it.
A room that cannot be let or used is lost income. Catching faults early means they can be put right in a short window, instead of turning into a leak that closes the room.
DIY versus a professional finish
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
When something else is needed
Some problems need a builder, plumber or other trade rather than us:
- Assessing what fire stopping a building needs
- Cracked trays or baths rather than failed joints
- Poor ventilation that keeps bringing mould back
If you are not sure, just drop us a line at info@mrmastic.co.uk and we will give you a straight answer.
What we seal
- Hotel bathrooms
- Office washrooms & kitchens
- Retail & leisure sites
- Student & care accommodation
- Rental portfolios
- Welfare facilities
