Argyll and Bute · Scotland
Lochdon Sand Mastic
Window and door surrounds in Lochdon need attention? We cut out the old, prepare the joints and apply the right sealant, with a one-year guarantee.
- Draughts and rain around sash boxes
- Mastic worn away on windows facing the weather
- Old cement repairs round a window that have failed
About our sand mastic in Lochdon
Across Lochdon, we renew sand mastic around sash and case windows. Every joint is cleaned out and filled by hand for a neat, traditional finish. If you are dealing with weathered mastic on the most exposed windows and modern sealant on a period surround, we can help, on tenement windows, sash and case windows and period & listed homes alike.
Across smaller places in Scotland, homes range from stone and harled cottages to newer houses, many standing in the open. Exposed frames and sills take the full force of wind-driven rain.
A one-year guarantee comes as standard, so you’re not left on your own once the job is done.
- Where
- Lochdon (PA64)
- Region
- Argyll and Bute
- Cover
- One year on every job
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Aftercare tips
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Don’t run silicone over sand mastic
- Clear gutters so water does not pour onto the windows
- Leave the new mastic unpainted
- Avoid heavy scraping on the mastic joint
When preparing windows for paint, take care around the mastic. Hard scraping can loosen it.
Good mastic helps keep the frame dry. Failed mastic lets water reach the timber and timber that stays wet can rot.
Other services in Lochdon
For landlords and businesses
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. Several properties can be quoted together.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Lochdon: your questions answered
Is Lochdon within the area you cover?
Yes, we do. We work across all of Scotland, from towns to the smallest places. Longer journeys are simply planned in advance.
Does living near the coast affect sand mastic in Lochdon?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Where is Mr Mastic based?
Our base is Crawley. Our area covers South East England, London and Scotland.
Can you work on commercial sites?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. We can talk about working times when we quote.
Can I paint the new mastic?
Traditional guidance is not to paint over sand mastic. If you are redecorating the window, ask us first and we’ll advise.
How do I get a quote for sand mastic in Lochdon?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.
What should I tell you?
Only a few details: where it is, what you’ve noticed and how we reach it. Then email us at info@mrmastic.co.uk.
Do you work for letting agents?
Yes. We work for homeowners, landlords, letting agents, businesses and hotels.
How we quote for sand mastic
We quote each job individually. These are the things that affect it:
- Any mould that needs treating
- How many rooms, windows or areas are involved
- The old material and how stubborn it is
- The product the joint needs
Every job is a little different, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all play a part.
What to tell us for a quote
When you contact us, these details help:
- Access, such as stairs, a lift or height
- If someone has resealed it before
- The type of property
- Where the job is, and your postcode
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we’ll talk you through what we’d do. Whenever you are ready, email us at info@mrmastic.co.uk.
Why it’s worth doing now in Lochdon
Cement-based fillers and modern sealants don’t always suit a period surround. Sand mastic is the like-for-like choice and that can be important for listed homes. In an older home around Lochdon, damp from a failed joint can get into timber and plaster, which is a far bigger job than the sealant.
Doing several joints on one visit usually makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. We will give you a clear price for the lot.
Why book with us
- ARBOMaster approved applicator
- Every job guaranteed for a year
- 180+ five-star Google reviews
- Over 20 years’ experience
Read how sealant jobs are priced or our reviews.
Should I try it myself first?
If you’ve already had a go yourself, that’s fine. We cut it out and start again.
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.
How it works
There’s no need to move everything out before we come, just the space around the work. We protect the rest, and the work takes anything from a few hours to a full day, depending on how many windows in most cases. Outside jobs in Lochdon need a dry day, because sealant won’t bond to a wet joint, so an outdoor job can move if the forecast changes. Indoor work goes ahead whatever the weather.
- We check each window surround and the condition of the joint.
- We rake out the old mastic and clean the joint.
- 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
- Where the joints are inside, avoid wetting them before we arrive
- Clear the area around the work
- Mention if the joints have been sealed before
How to get a quote
Every job is quoted individually, so start by telling us what you need. Simply send an email to info@mrmastic.co.uk and describe the job, and pictures are welcome.
Related advice
What we can’t put right
To be straight with you, there are a few things sealant won’t fix:
- Rotten sashes, sills or window boxes (a joiner’s job)
- Decisions on consent for listed homes
- Broken panes
If in doubt, drop us a line at info@mrmastic.co.uk and we’ll say what we think before you book.
Where we work in Lochdon
- Stone surrounds
- Tenement windows
- Timber door frames
- Period & listed homes
- Brick reveals
- Sash and case windows
Windows and doors in Lochdon
Lochdon is within about 1 mile of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That’s hard on the mastic around older windows and doors, especially on the side facing the sea. Many older homes in Scotland have sash and case windows, often pointed into the wall with traditional sand mastic.
For jobs in and around Lochdon, choosing the right material for each joint is as important as a tidy finish. In and around Lochdon, as anywhere, good sand mastic starts with a clean, dry, properly prepared joint.
Lochdon is in Argyll and Bute. Wherever you are in the PA64 postcode area, we can carry out sand mastic at your property. 118 places in Argyll and Bute are on our list, large and small. We also work in Glasgow, around 68 miles away.
Our applicators cover all of the PA64 postcode area for sand mastic. We also cover the places around Lochdon: Craignure (3 miles north), Lochaline (8 miles north-west), Dunollie (8 miles east), Ganavan (8 miles east) and Oban (9 miles east). For island and remote addresses, a little more planning is needed, so let us know when you get in touch.
Near you in Lochdon
Nearby you will also find Duart Castle (1.9 miles north-east) and Mull and Iona Community Hospital (3.2 miles north).