Dumfries and Galloway · Scotland
Sand Mastic in Lochans
Professional sand mastic in and around Lochans, with every bit of old sealant taken out first.
- Draughts and rain around sash boxes
- Mastic dropping out of the joint
- Cracked mastic round a front door frame
Sand mastic for homes and businesses in Lochans
A silicone bead around a sash window can look out of place and does not suit the building. Sand mastic gives a finish that matches the age of the house, and we can replace one with the other. We’re often asked to deal with gaps round a timber door in stone or brick and modern sealant on a period surround, on sash and case windows, period & listed homes and brick reveals.
Mastic can only go onto a dry joint, so outside work in Lochans depends on the weather. Tell us about access to all the windows and doors, upstairs included.
We guarantee the work for a year. If something isn’t right with it in that time, tell us and we’ll put it right.

- Where
- Lochans (DG9)
- Wider area
- Dumfries and Galloway
- Cover
- One year on every job
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Landlords, agents and businesses in Lochans
Letting agents often deal with us directly. Tell us the address, the job and how access works.
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.
Signs you need sand mastic in Lochans
Water gets into small cracks in the mastic and loosens it further. Exposed elevations normally fail first.
The most common problems we see are:
- Gaps round a timber door in stone or brick
- Patchy fillers round a sash window
- Weathered mastic on the most exposed windows
- Draughts and rain around sash boxes
If you let a flat or house near Stranraer station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
Questions to ask before booking
- When the joint can take water or movement
- The length of the guarantee
- Whether they’re fully insured
- Whether the sealant suits the joint
What we can’t put right
It helps to know what we cannot do too:
- Cracked or broken glass
- Timber that has rotted
- Decisions on consent for listed homes
If you’re not sure, just send an email to info@mrmastic.co.uk and we will give you a straight answer before you book.
What we seal
- Timber door frames
- Stone surrounds
- Tenement windows
- Brick reveals
- Sash and case windows
- Period & listed homes
Can I do it myself?
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Your questions about sand mastic in Lochans
I let a flat near Stranraer station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. You can email us at info@mrmastic.co.uk with the details for a clear quote.
Is sand mastic in a coastal place like Lochans any different?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. The right product, a clean joint and the right depth all help it cope.
Do you guarantee sand mastic work?
You get our one-year guarantee on every job.
Can you do several jobs on one visit?
Yes, and it often makes sense. Doing several areas at once is normally more efficient.
Is there any odour?
There can be a smell while the sealant cures, but it fades. Ventilation helps.
Do you remove the old sealant?
Yes, every time. New sealant won’t bond properly to old, so the joint is cleaned back first.
What should I tell you?
Tell us what needs doing and where, with pictures by email if possible. We’ll ask anything else we need to know.
How do I get a quote for sand mastic in Lochans?
We don’t publish prices, because the cost depends on the job: its size, the old material, access and the product needed. You will get a clear quote before we start.
Sand mastic in Lochans: local notes
Lochans is within about 3 miles of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on the mastic around older windows and doors, which can dry out and crack sooner where a building faces the weather. Many older homes in Scotland have sash and case windows, and the joint between the box frame and the stone or render is traditionally pointed with sand mastic.
Around Lochans, as everywhere, sand mastic is only as good as the preparation behind it.
Lochans is about 3 miles south of Stranraer, in Dumfries and Galloway. We carry out sand mastic for homeowners, landlords and businesses in Lochans, as part of our work across Dumfries and Galloway. Lochans is one of 138 towns and villages in Dumfries and Galloway where we work for sand mastic. Our Glasgow page covers work nearby, about 74 miles away.
Work in DG9 works the same way as everywhere else we cover. Streets in the area include Main Street, Mount Terrace and Cairn Terrace, all of which we cover. Nearby, we also carry out sand mastic in Lime Kiln (2 miles north-east), Stranraer (3 miles north), Aird (3 miles north-east), Stoneykirk (3 miles south-east) and Castle Kennedy (3 miles north-east).
Near you in Lochans
For rail, the closest station is Stranraer station, about 2.9 miles north. A little further out are North West Castle (2.5 miles north) and Stranraer Museum (2.5 miles north). For a walk, there’s Soulseat Loch.
What happens on the day
We work through the job in order: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours for a single window, longer for several and we leave things clean and tidy. Outside jobs in Lochans need a dry day, because sealant will not bond to a wet joint, so external jobs may need to move if the day turns wet. Work indoors isn’t affected.
- Each surround is checked first.
- The joint is raked out and cleaned.
- Large voids are packed out.
- New sand mastic is applied and shaped by hand.
- We finish the mastic to a tidy line.
Before we arrive
- Tell us about access, such as stairs, a lift or high-level joints
- Mention any sign-in or site rules at work premises
- Tell us if parking is tricky
Get a quote
Getting a quote is simple: let us know what needs doing and where. Photos by email help us understand the job, and we’ll take it from there.
Related advice
Nearby places to Lochans
Also in Lochans
How to look after the new joints
No joint lasts for ever, but care makes a real difference. A few tips:
- Clear gutters so water does not pour onto the windows
- Inspect the joints round the windows every year or so
- Ask a joiner to look at soft timber first
- Leave the new mastic unpainted
Look at the mastic when you look over the windows. Small cracks are easier to deal with early.
Good mastic helps keep the frame dry. Once it fails, water can sit against the timber, which can lead to rot.
What happens if it’s left?
Not every draught comes from the sashes themselves. Gaps between the frame and the wall can be just as bad and new mastic seals them. In an older home around Lochans, damp from a failed joint can get into timber and plaster, which is a far bigger job than the sealant.
What it costs depends on the amount of work, how hard the old material is to remove and access to the work. We give a clear quote before work begins.
Why Lochans customers choose us
- Trusted Arbo and Everbuild sealants
- We leave the area clean and tidy
- 4.9 on Google from 180+ five-star reviews
- Over 20 years’ experience
