Midlothian · Scotland
Remedial sealant & repairs in Polton, Midlothian
Removing failed, mouldy or leaking sealant and putting it right for householders, landlords and businesses in Polton. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Sealant peeling off a dusty or damp surface
- Repeat leaks from the same joint
- Decorators’ caulk around a bath or shower
How we handle remedial sealant in Polton
A movement joint stops working when its sealant splits or sets hard. We cut out the failed sealant and set the depth with backing, then a flexible sealant matched to the movement goes in. We work on leaking tray & enclosure joints, expansion joints and mouldy bath & shower sealant, and people most often call us about floor or wall movement joints that have failed and sealant peeling off a dusty or damp surface.
In and around a place like Polton, homes range from older stone-built properties to newer houses. Older buildings can move a little, and that shows first in cracked grout and split sealant.
There’s a 12-month guarantee on every job, large or small.
- Place
- Polton (EH18, EH19, EH24)
- Wider area
- Midlothian
- Guarantee
- A year, on every job
- Price
- A clear price before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Surface by surface
Mouldy bath & shower sealant
Black mould inside the bead will not scrub out. All of it comes out, and the joint is treated and dried before anti-fungal sanitary silicone goes in.
Worktops & kitchens
Kitchen joints often have grease and cleaning residue deep in them, so cleaning takes longer than in a bathroom before resealing.
Honest limits
It helps to know what we can’t do:
- Plumbing leaks behind walls or under trays
- Failed tanking or loose tiles behind the sealant
- Cracks in the fitting rather than the joint
If in doubt, send an email to info@mrmastic.co.uk and we’ll say what we think before booking.
What we seal
- Shrunken worktop sealant
- Botched or over-sealed joints
- Failed movement joints
- Expansion joints
- Leaking tray & enclosure joints
- Mouldy bath & shower sealant
How to look after the new joints
After the cure time, these simple habits help:
- Run the fan after every shower
- Don’t point over movement joints
- Deal with small splits early
- Find out why the sealant failed first
Keep the room ventilated: use the extractor or open a window after showering.
A failing joint rarely gets better on its own. Every shower or downpour sends more water through, into floors, walls or ceilings. Sorting it early limits the damage.
Polton homes and their sealant
In Scotland, private landlords have to meet the Repairing Standard, which includes keeping fixtures and fittings in reasonable repair. Failed sealant around a bath or shower is worth sorting between tenancies. Scotland’s water is generally soft, so sealant and grout see less limescale than in much of England. But mould still grows into sealant and grout in a room that does not dry out.
Schools such as Lasswade High School Centre are buildings too, and we reseal washrooms and kitchens in schools and businesses as well as homes. Homes close to St Leaonard's Episcopal Church include some older properties, and older homes can move a little, which is hard on rigid grout and tired sealant.
Polton is about 1 mile west of Bonnyrigg, in Midlothian. Every kind of property in Polton can book us for remedial sealant. The work is guaranteed for a year. Across Midlothian, we cover 33 places, and Polton is one of them. There’s also a page for Edinburgh, roughly 6 miles from Polton.
Postcode districts we cover here for remedial sealant: EH18, EH19 and EH24. Whether your property is on Gordon Avenue, De Quincey Road and St Annes Avenue or a nearby road, we can help. Neighbouring places we cover for remedial sealant include Rosewell (1 mile south), Bonnyrigg (1 mile east), Loanhead (1 mile north-west), Lasswade (1 mile north-east) and Roslin (2 miles south-west). Larger places within reach include Dalkeith (3 miles north-east), Penicuik (4 miles south-west), Gorebridge (4 miles south-east), Newtongrange (3 miles east), Mayfield (4 miles east) and Shawfair (4 miles north).
Around Polton
Locally, jobs take us to homes and businesses close to Public Library. The closest station to Polton is Eskbank station, roughly 2.2 miles north-east of the centre. Well-known places in the area include Hawthornden Castle (0.5 miles south-west) and Midlothian Community Hospital (1.9 miles north-east). Not far away are Woodhouselee Hill and Edgelaw Reservoir.
Leave it or put it right?
Spraying mould remover on a sealed-over joint does not reach what’s underneath. The layers have to come out, and the joint treated and dried before resealing. When the nearest tradesperson is a drive away, it’s tempting to leave a small leak, but water behind a failed seal does the most damage when nobody’s watching.
What you pay reflects the work, not guesswork. That’s why we ask about the job first and give you a clear price before work begins.
Why choose Mr Mastic in Polton
- More than 20 years in sealant work
- Colour picked to suit the job
- Sanitary silicone with an anti-fungal additive in wet areas
- We are fully insured
What we do, step by step
Every visit runs the same way: we look at the joints together, mask and protect the surrounding surfaces, carry out the job and tidy away. Most jobs take a few hours, depending on how many layers have to come out. Somewhere like Polton may be a longer drive, and the journey is planned ahead. Mention tracks, gates, ferries or anything else about the route.
- First we find out how and where the joint has failed.
- We strip the joint completely, removing any layers below.
- Next, any mould is treated and the joint dried.
- Where the joint moves, backing and a flexible sealant suited to the movement go in.
- The new joint is tooled neatly and we explain anything else we found.
Before we arrive
- Mention if the joints have been sealed before
- Clear the area around the work
- Tell us about any water getting in
Ask for a quote
For a quote, email us at info@mrmastic.co.uk and tell us where the job is and what the problem looks like. We will give you a clear price before any work starts.
Related advice
Common questions in Polton
Is Polton within the area you cover?
Yes, Polton is covered. We work across all of Scotland, and smaller places are part of that. Longer journeys are simply planned in advance.
Can you do remedial sealant in Polton?
Yes. Our work covers the whole of Scotland, and Polton is part of that. You can email us at info@mrmastic.co.uk and let us know what needs doing.
Can you quote for more than one area?
Of course. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
How long does the work take?
A little longer than a standard reseal. Most jobs take a few hours, and we confirm the time with your quote.
Where are you based?
We are a Crawley-based firm, with over 20 years’ experience. We work across South East England, London and Scotland.
Are you ARBOMaster approved?
Yes. We are approved under the ARBOMaster scheme, which is run for the Arbo sealant brand.
What do you need from me for a quote?
The location, the problem and the rough size of the job. If you can, email a few photos.
Can you reseal a split movement joint?
Yes. Where mortar or filler has been used instead of sealant, it’s removed where it can be, then the joint is sealed properly.
Landlord and commercial work in Polton
Letting agents and landlords in Polton can book us as well as householders. Sealant work between tenants is a simple way to keep a property in good order.
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. Several properties can be quoted together.
Do you need remedial sealant in Polton?
All sealant wears out eventually. Over the years it shrinks, hardens and gets colonised by mould. Then the only fix is removal and a new bead.
It’s worth asking for a quote if you see:
- Movement joints that have split or pulled away
- Beads that never stuck properly
- Leaks that keep coming back after resealing
- A second bead peeling off the first
If you let a flat or house near Eskbank station, botched sealant from a previous quick fix is easier to strip out between tenants.
What to look for in a quote
- Whether the sealant suits the joint
- Whether you can choose the colour
- How much experience the applicator has
- How the surfaces are prepared before sealing