Dumfries and Galloway · Scotland
New Luce Sand Mastic
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in New Luce and across Dumfries and Galloway. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Gaps between timber frames and stone or brick
- Mastic worn away on windows facing the weather
- Modern sealant on a period surround
New Luce: your questions answered
Will you come out to New Luce?
Yes, New Luce is covered. We work across all of Scotland, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Is sand mastic in New Luce guaranteed?
All our work, in New Luce and everywhere else, comes with a 12-month guarantee. We are also fully insured and ARBOMaster approved.
Can old silicone round a sash window be swapped for sand mastic?
Often, yes. Once the silicone is out and the joint prepared we point it with sand mastic.
What do you put in the joint?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we’ll tell you what we’re using.
Can I choose the sealant colour?
Most of the time, yes. We will explain which colours are available.
Is consent needed for window work on a listed home?
Checking first is sensible. Ask your local planning authority whether consent is needed for listed or conservation-area properties.
Is it messy?
Very little: the area around the joints is protected first, and we tidy up before we go.
Which is right for my windows, sand mastic or modern sealant?
Sand mastic generally suits period timber windows best. On modern frames, we’d normally use a flexible sealant.
Sand mastic for homes and businesses in New Luce
We renew sand mastic around sash windows and doors set in stone or brick. The old mastic is raked out, and new mastic is applied and shaped by hand. If you’re dealing with crumbling sand mastic round a window and tired mastic found when preparing windows for paint, we can put it right, on timber door frames, brick reveals and sash and case windows alike.
Many older Scottish homes still have timber windows set into stone walls. Those suit a traditional sand mastic or a neutral-cure sealant, not an acetoxy silicone that can attack some stone.
Every job is covered by a 12-month guarantee.
- Location
- New Luce (DG8)
- Wider area
- Dumfries and Galloway
- Guarantee
- A year, on every job
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Places near New Luce
Also in New Luce
What the job involves on each surface
Brick reveals
Sand mastic is also used where timber frames meet brick. It suits older brickwork.
Sash and case windows
A sash window’s box frame sits in the masonry opening. The gap round it is pointed with sand mastic.
DIY versus a professional finish
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is.
When to call us in New Luce
Paint, silicone or cement used over old mastic causes problems. They do not suit the joint, and they usually need raking out.
Signs it’s time to call us include:
- Old cement repairs round a window that have failed
- Failed mastic on an exposed elevation
- Gaps round a timber door in stone or brick
- A silicone bead on a sash window that spoils the look
For jobs in and around New Luce, choosing the right material for each joint is as important as a tidy finish.
Comparing quotes
- How the joint is cleaned and prepared
- How hidden problems are handled
- Whether the sealant suits the joint
- Are they insured?
Aftercare tips
Aftercare is simple, and it makes a real difference:
- Keep sills and gutters clear so water drains away
- Have rotten timber repaired before new mastic goes in
- Look over the window mastic once a year
- Sort the mastic before the decorators arrive
Don’t touch or press the mastic while it hardens. It skins over quickly but needs longer to fully harden.
Sound mastic protects the frame. Failed mastic lets water reach the timber, which can lead to rot.
Why act early in New Luce
Draughts round a sash window aren’t always the sashes. Open mastic joints round the box can let air in and new mastic seals them. Around New Luce, water from a failed joint in an older stone home can soak into timber and plaster, which is a far bigger job than the sealant.
Rather than a set price list, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What you get with us
- Any old sealant cut out fully, not covered over
- We leave the area clean and tidy
- Homes, businesses and hotels
- Over 20 years’ experience
Take a look at what affects the cost or what customers say.
What happens on the day
There’s no need to move everything out, just the space around the work. We protect the rest, and the job takes a few hours for a single window, longer for several for a typical job. Around New Luce, distance and access matter more than parking. Tell us how to find the property and how to reach the work.
- First, we look at the surrounds with you and agree what needs doing.
- Old, loose mastic is raked out and the joint cleaned.
- Large voids are packed out first, so the mastic is not too thick.
- The mastic is mixed, pressed into the joint by hand and shaped.
- We dress the surface so it sits neatly against the masonry.
How to prepare
- Clear the area around the work
- Keep pets and children clear of the area while we work
- For indoor joints, keep the area dry beforehand if you can
Ask for a quote
There’s no standard price list. Instead, your job gets its own clear quote. To arrange one, drop us a line at info@mrmastic.co.uk.
Read more
Work for landlords, hotels and businesses
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.
For anyone letting property in or around New Luce, several properties can go on one quote. Just tell us the addresses and what each one needs.
Sand mastic in New Luce: local notes
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. The west of Scotland is wetter than the east, so there’s plenty of rain for the mastic around older windows and doors to keep out.
In and around New Luce, as anywhere, good sand mastic starts with a clean, dry, properly prepared joint.
New Luce is about 8 miles east of Stranraer, in Dumfries and Galloway. From the centre of New Luce to the outskirts, sand mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Across Dumfries and Galloway, we cover 138 places, and New Luce is one of them. There’s also a page for Glasgow, about 67 miles away.
Jobs for sand mastic in DG8 works the same way as everywhere else we cover. If you need sand mastic at a property on Main Street, Station Road and Smithy Lane or anywhere close by, our applicators can take on the job. We also cover Dunragit (5 miles south), Glenluce (5 miles south), Castle Kennedy (5 miles south-west), Innermessan (6 miles west) and Aird (6 miles south-west). We also work in nearby towns such as Stranraer (8 miles west), Newton Stewart (15 miles east), Portpatrick (13 miles south-west) and Minnigaff (15 miles east).
Local landmarks in New Luce
Nearby you’ll also find Lochinch Castle (4.6 miles south-west). For a walk, there’s Artfield Fell and Black Loch.