Edinburgh · Scotland
Mountcastle Commercial Sealant
Specialist commercial sealant for Mountcastle: careful preparation, the right product and tidy work. Call for a quick quote.
- Leaks from showers into rooms or ceilings below
- Tired sealant ahead of a health and safety audit
- Whole floors of tired en suites
Commercial sealant for homes and businesses in Mountcastle
Mr Mastic brings more than 20 years’ experience to commercial sites, and we’re fully insured and ARBOMaster approved. Tell us what paperwork your site needs, such as RAMS or insurance details, and we’ll confirm what we can supply with the quote. Common call-outs are for tired sealant in let properties and shower leaks reaching the floor below, on student & care accommodation, rental portfolios and retail & leisure sites.
Scotland’s cities have offices, hotels, student flats, care homes and tenement blocks looked after by factors. For a building in Mountcastle, the job might be washroom resealing or fire-rated sealant around service openings.
Our work is backed for twelve months, and the guarantee is the same wherever you are.
- Location
- Mountcastle (EH15, EH8, EH7)
- Wider area
- Edinburgh
- Guarantee
- One year on every job
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026

Aftercare tips
Aftercare is simple, and it makes a real difference:
- Note the date each area was done
- Keep extractor fans working and serviced
- Pass on the cure time to whoever cleans the rooms
- Check the joints during routine room inspections
Keep the extraction running and maintained. Where a room has no window, the fan is what dries it out, and that is what keeps mould away.
Signs to look for: black spots in the silicone, corners lifting, staining on the ceiling below or a musty smell. Any of these means the joints need attention.
Common problems we fix in Mountcastle
Wet rooms and accessible showers are designed for the whole floor to get wet, so floor-to-wall joints take standing water. Any split there can let water through quickly.
Look out for these signs:
- Repeated reseals that do not last
- Tired sealant ahead of a health and safety audit
- Washroom sealant that looks dirty however often it’s cleaned
- Leaking joints in shower rooms and changing areas
If you look after a church, hall or community building such as Willowbrae Parish Church, halls and community kitchens see heavy use, and their sealant shows it.
What to look for in a quote
- Whether the sealant suits the joint
- How much experience the applicator has
- Is the old sealant removed completely?
- How the joint is cleaned and prepared
Quotes for commercial sealant in Mountcastle
Some jobs are bigger than they look, and some smaller. What affects the quote:
- How many areas need sealing
- Any mould that needs treating
- The old material and how stubborn it is
- When we can work, for business premises
What you pay reflects the work, not guesswork. That is why we ask about the job first and agree the price before starting.
What we need to know
Before you ask for a quote, have a think about:
- The rough size of the job
- Access, such as stairs, a lift or height
- Photos by email, if that’s easy
- The address or postcode of the job
We quote each job on its own. Just email us at info@mrmastic.co.uk with the details and send pictures if you have them.
Nearby places to Mountcastle
More services for Mountcastle
Landlord and commercial work in Mountcastle
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
What the job involves on each surface
Student & care accommodation
Empty rooms between terms or tenancies are easy to reseal, though occupied rooms can be done too.
Office washrooms & kitchens
Kitchen and tea point joints are degreased and resealed, with a food-safe product beside sinks where needed.
When it is not the sealant
We’ll always be straight with you, so here’s what sealant can’t fix:
- Extraction that isn’t working, which needs an electrician or ventilation contractor
- A shower tray, bath or basin that is cracked or broken
- Leaking pipework, valves or wastes (a plumber’s job)
If in doubt, email us at info@mrmastic.co.uk and we’ll say what we think before booking.
What we seal
- Welfare facilities
- Student & care accommodation
- Retail & leisure sites
- Rental portfolios
- Office washrooms & kitchens
- Hotel bathrooms
What commercial sealant looks like in Mountcastle
If you run a hotel, guest house or holiday let in a coastal place like Mountcastle, 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, so landlords with several properties often need sealant work across them all.
Managing a site like Portobello High School? Then busy washrooms and kitchens can be resealed in phases so they stay open. If you let a flat or house near Brunstane station, several rental properties can be resealed on one programme.
Mountcastle is about 3 miles east of Edinburgh, in Edinburgh. We provide commercial sealant to homes and businesses in Mountcastle, as part of our work across Edinburgh. We cover 175 towns and villages across Edinburgh, large and small.
Postcode districts we cover here for commercial sealant: EH15, EH8 and EH7. Whether your property is on Goff Avenue, Bryce Avenue and Durham Avenue or anywhere close by, our applicators can take on the job. Main roads around Mountcastle include the A1 and A1140, which makes travel easy. We also cover the places around Mountcastle: Northfield (1 mile south-west), Craigentinny (1 mile north), Piershill (1 mile north-west), South Portobello (1 mile east) and Willowbrae (1 mile west). Within a short drive, we also cover Edinburgh (3 miles west), Silvermills (3 miles west), West End (3 miles west), Stockbridge (3 miles west), Canonmills (3 miles west) and West Coates (4 miles west).
What’s near Mountcastle
In Mountcastle, that means homes and buildings near Public House, Abercorn Park and Duddingston Kirk, among other places. The closest station to Mountcastle is Brunstane station, about 1.4 miles south-east of the centre. Well-known places in the area include Cameron Toll Shopping Centre (2.1 miles south-west) and Hibernian Football Club Museum (1.5 miles north-west). For a walk, there’s Whinny Hill and The New Leaf Co-op.
Mountcastle: your questions answered
Is Mountcastle in your area for commercial sealant?
Yes. We work across all of Scotland, and Mountcastle is part of that. Just email us at info@mrmastic.co.uk with a few details of the job.
Can you help a landlord with a rental near Brunstane station?
Yes, we work for landlords and letting agents. Just email us at info@mrmastic.co.uk and tell us about the property, and we will give you a clear quote.
What do you need from me for a quote?
Tell us what needs doing and where, with photos by email if possible. If we need more, we’ll ask.
How long will you be here?
Typically it takes a few hours per area, with larger sites planned over several visits. Bigger jobs take longer.
Should I try DIY first?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. If it does not work out, we can redo it.
Can you match the sealant colour?
We help you choose a colour that suits, from white and clear to greys and other shades. The product needed can limit the range.
Can you reseal hotel rooms while we stay open?
Yes. Rooms are done a few at a time, keeping most rooms available. Each room comes back with its cure time for housekeeping.
Is it OK to seal over old sealant?
No, it won’t last. It can look neat for a few weeks, but the new bead soon lifts. The old sealant has to come out completely.
How the visit works
We bring everything the job needs with us. Once we’ve agreed what’s being done, the area is protected and the work begins. Most jobs take anything from a few hours to several days, depending on the number of rooms. Many homes in Scotland’s cities are tenement flats, reached through a shared close and up a common stair. In Mountcastle, it helps to know the floor, the door entry arrangements and the nearest parking.
- We start by looking at the rooms and agreeing what’s needed.
- Working hours are agreed, including early starts or out-of-hours work where it can be arranged.
- Each area is protected and stripped of old sealant.
- Joints are dried, then resealed and tooled neatly.
- We let your team know the cure time for every area.
How to prepare
- Tell us about any previous sealing or DIY attempts
- Try not to wet indoor joints just before the visit
- Mention any parking rules near the property
Getting a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is. When it suits you, email us at info@mrmastic.co.uk.
