Midlothian · Scotland
Glazing & conservatory sealant in Old Pentland, Midlothian
Glazing silicone for conservatories, rooflights, glass panels and shower screens for homes and businesses in Old Pentland and across Midlothian. Fully insured, ARBOMaster approved and guaranteed for a year.
- Black or yellowed silicone on glass joints
- Shower screens leaking along the wall or tray
- Glazing silicone that has cracked or come away
Looking after it afterwards
Simple care keeps the joints in good condition. We recommend:
- Keep harsh solvents off the silicone
- Wipe the screen down after showering
- Open vents or windows to let moisture out
- Stick to mild cleaners on glass
Check the joints once a year. Catching a split early keeps the repair small, before water gets in.
Shower screen leaks can go unnoticed. Water can soak into the floor or reach the room below long before you see it.
About our glazing silicone in Old Pentland
Sealant on glazing does not last for ever. Sun, rain and movement wear it down, and once it cracks, water follows. Resealing puts that right. We work on shower screens, glass-to-glass joints and conservatory frames, and people most often call us about failed joints on frameless glass and conservatory leaks at frame and glazing joints.
Outdoor sealant needs a dry surface, so window work around Old Pentland is planned around the weather, and longer journeys are planned in advance. Tell us about access to all the windows and doors, upstairs included.
Every job comes with a 12-month guarantee.
- Place
- Old Pentland (EH20, EH10)
- Region
- Midlothian
- Guarantee
- One year on every job
- Quotes
- A clear price before we start
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
What happens if it’s left?
Dealing with a leaking shower screen early protects the floor and ceiling. Water from a failed joint can soak into the floor before it shows. In a place like Old Pentland, small leaks are easy to put off, but water behind a failed seal does the most damage when nobody’s watching.
Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs. Call for a quick quote and we’ll explain what it covers.
Why us?
- 4.9 on Google from 180+ five-star reviews
- Experience in homes, commercial sites and hotels
- White, clear, grey or another colour, product permitting
- ARBOMaster approved applicator
DIY versus a professional finish
A DIY attempt does not rule out a professional job. We cut it out and start again.
What a professional job adds is preparation and the right 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.
How the job changes by surface
Conservatory frames
The joints where the conservatory meets the house take a lot of movement. We reseal them with a sealant suited to the frame.
Shower screens
A screen’s wall joint and tray joint are where leaks start. We reseal both with anti-fungal silicone.
What we do, step by step
Before we leave, we go over the finished joints with you and tell you how long to leave it. The work normally takes a few hours for most jobs, depending on the size of the job. Somewhere like Old Pentland may be a longer drive, and the journey is planned ahead. Mention tracks, gates, ferries or anything else about the route.
- First, we trace the leak and check it’s coming through a sealant joint.
- The old sealant is removed from the glass and frame without scratching them.
- Surfaces are cleaned with a solvent suited to glass and the frame.
- Glazing silicone suited to the joint is applied and tooled.
- The finished joints are checked and, where it’s safe, tested with water.
Getting ready for the visit
- On commercial sites, let us know about site rules
- Mention any tricky access
- Let us know if you’ve seen damp or leaks
How to get a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we will talk you through what we’d do. Whenever you’re ready, email us at info@mrmastic.co.uk.
Related advice
More services for Old Pentland
What sealant work cannot fix
We will not take on work that will not last, so here’s what sealant can’t put right:
- A roof that has moved or dropped
- Failed flashing around a conservatory
- Rotten or badly damaged frames
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
- Conservatory frames
- Shower screens
- Glass-to-glass joints
- Glass-to-frame joints
- Glass balustrade bases
- Rooflights
Old Pentland questions
Do you cover Old Pentland for glazing silicone?
Yes, Old Pentland is within the area we cover. We work across all of Scotland. Just drop us a line at info@mrmastic.co.uk with a few details of the job.
Do you work for landlords with property near Slateford station?
Yes, landlords and agents are among the people we work for. Just drop us a line at info@mrmastic.co.uk with the address and what needs doing, and we will give you a clear quote.
Is it possible to redo the silicone on a shower screen?
Yes. We remove the old sealant and reseal the wall and tray joints.
Do I have to be there?
We need access to the joints, so we’ll agree that with you when we book. For inside work, that normally means someone being in.
Can you replace a misted double-glazed unit?
That’s not something we do. A misted unit has failed inside and needs replacing by a glazier.
Is there any odour?
That depends on the sealant. Some smell for a while, some hardly at all, and any smell fades as they cure.
How long does the job take?
Most jobs take a few hours, depending on how many joints need doing, including preparation and clearing up. We will confirm how long when we quote.
Do you guarantee glazing sealant work?
Our 12-month guarantee applies to every job we do.
Landlords, agents and businesses in Old Pentland
Failed sealant is one of the commonest items on a check-out report. We can quote for more than one property at once.
If you manage several properties in or around Old Pentland, several properties can go on one quote. Send us the addresses and the work at each, and pictures by email help.
Frames and glazing around Old Pentland
Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and sound outside sealant is part of that. Sash and case windows are common in older Scottish homes, often pointed into the wall with traditional sand mastic.
Historic houses such as Melville Castle, about 3.1 miles east, show how far back building around Old Pentland goes, and older homes nearby need a sealant that suits their walls. If you let a flat or house near Slateford station, a shower screen or conservatory joint that leaks is easier to reseal while the property is empty. For site and facilities teams at buildings such as Gracemount High School, its window and door frames need their mastic kept sound, just like a home’s.
Old Pentland is about 3 miles west of Bonnyrigg, in Midlothian. Our applicators cover glazing silicone for homes and businesses in Old Pentland. Across Midlothian, we cover 33 places, and Old Pentland is one of them.
We work across EH20 and EH10 for glazing silicone. Neighbouring places we cover for glazing silicone include Hillend (1 mile west), Bilston (1 mile south), Loanhead (1 mile east), Burdiehouse (1 mile north-east) and Roslin (2 miles south). Larger places within reach include Bonnyrigg (3 miles east), Dalkeith (5 miles east), Penicuik (4 miles south-west), Gorebridge (6 miles south-east), Newtongrange (5 miles east) and Mayfield (6 miles east).
Near you in Old Pentland
The closest station to Old Pentland is Slateford station, about 3.8 miles north-west of the centre. Nearby you will also find Cameron Toll Shopping Centre (3.1 miles north) and Princess Margaret Rose Orthopaedic Hospital (1.2 miles north-west). Open spaces near Old Pentland include Caerketton Hill and The New Leaf Co-op.