Shetland Islands · Scotland
Commercial & hotel sealant in Haroldswick, Shetland Islands
Sealant work for offices, hotels, washrooms and commercial buildings for householders, landlords and businesses in Haroldswick. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Mouldy bathrooms flagged at a tenancy check
- Joints that need doing before an inspection or audit
- Black, stained silicone in guest bathrooms
Commercial sealant in Haroldswick, done properly
Commercial work is planned around the building, not the other way round. Rooms can be done one at a time, floor by floor or in batches, and out-of-hours work or early starts can be arranged. If you’re dealing with joints that need doing before an inspection or audit and water marks on ceilings under bathrooms, we can put it right, on rental portfolios, office washrooms & kitchens and student & care accommodation alike.
For a place like Haroldswick, the journey and timings are planned in advance, so the job can fit around guests, residents or opening hours where possible.
Each job carries a 12-month guarantee, large or small.
- Location
- Haroldswick (ZE2)
- Region
- Shetland Islands
- Guarantee
- One year on every job
- Price
- A clear price before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
DIY sealant or a professional job?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
More services for Haroldswick
Common problems we fix in Haroldswick
Internal washrooms and en suites without a window rely entirely on extraction, so if the fan is weak, steam lingers and the sealant stays damp. Mould then takes hold in the silicone.
Common reasons people contact us include:
- Leaking joints in shower rooms and changing areas
- Washroom sealant that looks dirty however often it’s cleaned
- Failed joints in office kitchens and tea points
- Shower leaks reaching the floor below
For buildings such as St John's Church, any kitchen and washrooms need the same sealant care as any other building.
Comparing quotes
- How long to leave it before use
- Whether VAT is included
- Whether the sealant suits the joint
- Are they insured?
The process
Our applicators work methodically: protect, prepare, seal, tidy. Typically it takes a few hours per area, with larger sites planned over several visits, and the area is left clean. Outdoor work around Haroldswick depends on the weather, as sealant needs a dry surface, so external jobs may need to move if the day turns wet. Work indoors is not affected.
- We agree a programme with you: which rooms, in what order, at what times.
- Tell us what paperwork your site needs, and we confirm what we can supply before any work starts.
- Old sealant is cut out room by room and joints cleaned and treated.
- We reseal with the right product for each joint.
- Each finished area is checked with you and given a cure time.
Preparing for the visit
- Mention any tricky access
- Clear the area around the work
- Mention any parking rules near the property
Ask for a quote
Want a quote for commercial sealant? Please drop us a line at info@mrmastic.co.uk and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.
Advice
Work for landlords, hotels and businesses
Failed sealant is one of the commonest items on a check-out report. We can quote for more than one property at once.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.
Why deal with it now?
A leaking shower in a hotel room or flat above can damage the ceiling below. That means a second room out of use and a repair to pay for. A reseal now avoids that. Around Haroldswick, water from a failed joint in an older stone home can soak into timber and plaster.
Combining jobs into one visit is usually more efficient than separate visits. You’ll get one clear quote for the whole job.
Why Haroldswick customers choose us
- More than 20 years in sealant work
- White, clear, grey or coloured to suit, where the product allows
- An ARBOMaster approved applicator
- Every job guaranteed for a year
Read our cost guide and our reviews.
Haroldswick: your questions answered
Is Haroldswick in your area for commercial sealant?
Yes, Haroldswick is within the area we cover. Our work covers the whole of Scotland. You can email us at info@mrmastic.co.uk and let us know what needs doing.
Is commercial sealant in Haroldswick guaranteed?
All our work, in Haroldswick and everywhere else, comes with a 12-month guarantee. We are fully insured, and an ARBOMaster approved applicator.
What does commercial sealant cost?
Size, access and the old material all affect the cost. Call for a quick quote.
Can you reseal bathrooms across several rental properties?
Yes. For several properties, we can plan the work as one programme, fitting around access to each property.
How soon can a room be used after resealing?
It depends on the product, but around 24 hours is typical. We tell your team the cure time for every area.
Where are you based?
Mr Mastic is based in Crawley. We cover Haroldswick and the rest of the Shetland Islands, along with the rest of our area.
Can I do it myself?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional, while a short indoor joint may be within reach.
Will there be a smell?
Some sealants have a smell while they cure. Opening a window helps.
What we can’t put right
It helps to know what we can’t do too:
- Cracked trays or baths rather than failed joints
- Water coming from plumbing rather than sealant
- Assessing what fire stopping a building needs
Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we’ll tell you honestly.
Surfaces we seal
- Student & care accommodation
- Hotel bathrooms
- Retail & leisure sites
- Welfare facilities
- Rental portfolios
- Office washrooms & kitchens
How to look after the new joints
Looking after new joints is easy, and it makes a real difference:
- Get split or lifting joints looked at early
- Pass on the cure time to whoever cleans the rooms
- Report broken fans quickly
- Keep a record of which rooms were resealed and when
Squeegees in guest and staff showers help: less water sits on the joints between uses.
Mould in shared washrooms gets noticed and talked about. Left long enough, it spreads through the bead, so the fix is replacement.
Workplaces and buildings in Haroldswick
For seaside hotels, guest houses and holiday lets around Haroldswick, busy months put washrooms and kitchens under pressure, so it’s worth checking the sealant before the busiest weeks. Island jobs need planning around ferries and the weather, so the more notice, the better.
In and around Haroldswick, as anywhere, good commercial sealant starts with a clean, dry, properly prepared joint.
Haroldswick is in the Shetland Islands. Our applicators cover commercial sealant for homes and businesses in Haroldswick. 63 places in the Shetland Islands are on our list, large and small.
Our applicators cover all of the ZE2 postcode area for commercial sealant. If you need commercial sealant at a property on Taftens, Nordabrake and Brakefield Crescent or anywhere close by, our applicators can take on the job. Being close to the B9087, Haroldswick is simple for us to get to. If you’re just outside Haroldswick, we cover Baltasound (3 miles south-west), Clivocast (8 miles south), Cullivoe (9 miles south-west), Houbie (14 miles south) and Camb (15 miles south-west). Remote and island addresses need a little more planning, so please mention your location when you send an email to info@mrmastic.co.uk.
Near you in Haroldswick
Other landmarks nearby include Unst Heritage Centre (0.6 miles south-west). Not far away are Little Heog and Loomer Shun.