Dumfries and Galloway · Scotland
Sand Mastic in Cummertrees
We cover Cummertrees for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly.
- Cracked mastic round a front door frame
- Failed mastic on an exposed elevation
- Gaps where the frame meets the masonry
Sand mastic in Cummertrees, done properly
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 work on stone surrounds, brick reveals and period & listed homes, and the jobs we see most are mastic dropping out of the joint and gaps round a timber door in stone or brick.
In and around a place like Cummertrees, homes range from older stone-built cottages to newer houses. Exposed frames and sills take the full force of wind-driven rain.
There’s a 12-month guarantee on every job, whatever its size.
- Place
- Cummertrees (DG12)
- Wider area
- Dumfries and Galloway
- Guarantee
- A year, on every job
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Looking after it afterwards
A little care helps the new joints last. We recommend:
- Renew mastic before redecorating the windows
- Make sure water runs off the sill
- Find out about consent before window work on a listed home
- Have rotten timber repaired before new mastic goes in
Avoid sealing over the mastic with silicone. If anything cracks, get it looked at rather than patching it.
Gaps round a sash box let in draughts and rain. The longer it’s left, the more the joint opens as more mastic falls out.
What we can’t put right
We will not take on work that won’t last, so these are the limits:
- Sashes that rattle, stick or won’t open
- Rotten sashes, sills or window boxes (a joiner’s job)
- Decisions on consent for listed homes
If you are not sure, just email us at info@mrmastic.co.uk and we’ll give you a straight answer.
What we seal
- Tenement windows
- Timber door frames
- Sash and case windows
- Brick reveals
- Stone surrounds
- Period & listed homes
How we quote for sand mastic
We don’t publish a price list, because jobs vary so much. What we look at:
- The number and length of the joints
- The product the joint needs
- Whether the work is at height
- How many areas need sealing
Leaving a failed joint usually makes the job bigger, not smaller, because water and mould keep working on it. If you’re unsure, email us at info@mrmastic.co.uk for an honest opinion and a quote.
What we need to know
To help us quote quickly, please include:
- Roughly how big the job is
- Where the job is, and your postcode
- Whether it has been sealed before
- Whether it’s a home or a business
To get a quote, drop us a line at info@mrmastic.co.uk and tell us where the job is and what the problem looks like. You will have a clear quote before work begins.
Should I try it myself first?
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
The process
Good joint work is mostly preparation, and we don’t rush it. Every joint is cleaned and dried before new material goes in. All told, the work takes anything from a few hours to a full day, depending on how many windows. For a place like Cummertrees, longer drives are planned in advance. Mention tracks, gates, ferries or anything else about the route.
- We look at the surrounds with you and agree the joints to renew.
- We remove the old, loose mastic.
- We pack any deep voids first.
- We apply the mastic by hand and shape it.
- We dress the finish so it sits neatly against the masonry.
Preparing for the visit
- Mention any leaks or damp you’ve noticed
- Mention any sign-in or site rules at work premises
- Keep children and pets away from the work area
Getting a quote
We quote each job on its own. Simply drop us a line at info@mrmastic.co.uk and describe the job, and photos are welcome.
Advice
Also in Cummertrees
Windows and doors in Cummertrees
Cummertrees is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is 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, and the joint between the box frame and the stone or render is traditionally pointed with sand mastic.
If you live in an older home near Cummertrees Parish Church, the joint between an old wall and a newer frame is normally the first place rain gets in. If you let a flat or house near Annan station, any sash windows need sound mastic to keep draughts and rain out.
Cummertrees is about 12 miles south-east of Dumfries, in Dumfries and Galloway. From the centre of Cummertrees to the outskirts, sand mastic is available for homes and businesses alike, from flats and houses to offices and hotels. We cover 138 towns and villages across Dumfries and Galloway, large and small. Edinburgh is on our list too, around 66 miles away.
We work across DG12 for sand mastic and the streets around it. If you’re just outside Cummertrees, we cover Powfoot (1 mile south-east), Kelhead (2 miles north), Newbie (3 miles east), Howes (3 miles east) and Clarencefield (3 miles north-west). Larger places within reach include Dumfries (12 miles north-west), Lockerbie (9 miles north), Heathhall (12 miles north-west), Newbridge Drive (13 miles north-west), Gretna (11 miles east) and Lochmaben (11 miles north).
Landmarks near Cummertrees
For rail, the closest station is Annan station, roughly 3.4 miles east. A little further out are Annan Hospital (4 miles east) and Annan Castle (3.3 miles east). The countryside around Cummertrees includes Campfield Marsh RSPB reserve.
For landlords and businesses
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we’ll quote.
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. We can quote for more than one property at once.
Surface by surface
Period and listed homes
Many older homes were built with sand mastic round the windows. On listed buildings, check with your planning authority first.
Timber door frames
Door frames get knocked and soaked and the mastic can crack early. It’s renewed by hand.
Questions from Cummertrees
Do you cover smaller places like Cummertrees?
Yes, we do. We work across all of Scotland, from towns to the smallest places. Longer journeys are simply planned in advance.
Does the coastal weather in Cummertrees affect outside sealant?
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.
Will you leave a mess?
We keep the work tidy. Nearby surfaces are protected.
What should I tell you?
The location, the problem and the rough size of the job. Photos by email help too.
Is sand mastic better than silicone for my windows?
For period timber windows in stone or brick, sand mastic is often the better fit. Modern frames normally suit a flexible sealant.
Do the sealants smell?
That depends on the sealant. Some smell for a while, some hardly at all.
Can you match the sealant colour?
Generally, yes. White, clear and grey are common, and other colours are available for many products, and we agree the colour with you before work begins.
Do you have insurance?
Yes. We are fully insured.