Perth and Kinross · Scotland
Dowally Sand Mastic
We cover Dowally for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old material cut out, joints cleaned and sealed neatly.
- Modern sealant on a period surround
- Mastic that needs renewing before redecorating
- Draughts and rain around sash boxes
How we handle sand mastic in Dowally
Our applicators renew the sand mastic around sash and case windows and doors set in stone or brick. Out comes the old, loose mastic, and new mastic is applied and shaped by hand. We work on period & listed homes, timber door frames and tenement windows, and people most often call us about mastic that needs renewing before redecorating and weathered mastic on the most exposed windows.
Older stone-built homes in Scotland often have sash and case or timber windows set in stone. The sealant has to suit the stone, which rules out acetoxy silicones that can mark or attack it.
All of our work is guaranteed for twelve months.
- Place
- Dowally (PH9)
- Region
- Perth and Kinross
- Guarantee
- 12 months on all our work
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Updated
- 26 October 2026

How to look after the new joints
How long the joints last depends on use and care. We suggest:
- Make sure water runs off the sill
- Renew mastic before redecorating the windows
- Get any rot dealt with first
- Don’t paint over the new mastic
When preparing windows for paint, take care around the mastic. It can be damaged by heavy scraping.
Sound mastic protects the frame. Failed mastic lets water reach the timber and timber that stays wet can rot.
How the visit works
We keep the work tidy and contained to the area we are working on, so you can get on with your day. Expect the work to take a few hours for a single window, longer for several, and we tell you how long to leave it before we go. Outside jobs in Dowally need a dry day, because sealant will not bond to a wet joint, so an outdoor job can move if the forecast changes. Work indoors is not affected.
- We look at the surrounds with you and agree the joints to renew.
- We remove the old, loose mastic.
- Deep gaps are packed so the mastic sits at the right depth.
- We apply the mastic by hand and shape it.
- The surface is finished to suit the stone or brick.
How to prepare
- Move anything stored near the joints
- Keep children and pets away from the work area
- Let us know about parking restrictions
How to get a quote
If you’re in Dowally and need sand mastic, send an email to info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.
Advice
Towns and villages near Dowally
Also in Dowally
Windows and doors in Dowally
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. Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and failed outside joints work against that.
For landlords with property near Dunkeld & Birnam station, cracked sand mastic around sash windows lets in the draughts tenants complain about. In the older streets around St Anne's Church and Churchyard, the joint between an old wall and a newer frame is usually the first place rain gets in.
Dowally is about 11 miles west of Blairgowrie and Rattray, in Perth and Kinross. Jobs in Dowally get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. 107 places in Perth and Kinross are on our list, large and small. Dundee is on our list too, about 27 miles from Dowally.
Every address in PH9 is within our area for sand mastic, from the main roads to the quietest streets. Nearby, we also carry out sand mastic in Inchmagrannachan (2 miles south), Logierait (3 miles north-west), Ballinluig (3 miles north-west), Dunkeld (4 miles south-east) and Little Dunkeld (4 miles south-east). Larger places within reach include Blairgowrie and Rattray (11 miles east), Pitlochry (7 miles north-west), Tulloch (15 miles south-east), Alyth (15 miles east), Coupar Angus (14 miles east) and Rattray (11 miles east).
Landmarks near Dowally
The nearest railway station is Dunkeld & Birnam station, roughly 4.4 miles south-east. Other landmarks nearby include Tom na Croiche (3.1 miles north-west) and Scottish Horse Regimental Museum (3.7 miles south-east). The countryside around Dowally includes Dowally Loch.
DIY versus a professional finish
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
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, and the work is guaranteed for a year.
How we quote for sand mastic
The quote reflects the job in front of us. We take into account:
- Mould in or behind the old joints
- Any working-time requirements on site
- The size of the job
- The old material and how stubborn it is
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 will go through it with you.
Helping us quote
Before you ask for a quote, have a think about:
- The problem you’ve noticed
- Where the job is, and your postcode
- Pictures of the joints, sent by email
- If someone has resealed it before
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and email photos if that is easy.
What sealant work can’t fix
Honest advice matters more to us than a booking, so here’s what sealant can’t fix:
- Planning or listed building consent (your local planning authority decides)
- Timber that has rotted
- Cracked or broken glass
If you are not sure, just email us at info@mrmastic.co.uk and we’ll give you a straight answer before booking.
What we seal
- Stone surrounds
- Timber door frames
- Sash and case windows
- Period & listed homes
- Tenement windows
- Brick reveals
Surface by 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.
For landlords and businesses
If you manage several properties in or around Dowally, jobs at different addresses can be quoted together. Send us the addresses and the work at each, and pictures by email help.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
FAQs for Dowally
Is Dowally in your area for sand mastic?
Yes. We work across all of Scotland, and Dowally is part of that. Just drop us a line at info@mrmastic.co.uk with a few details of the job.
Do you cover smaller places like Dowally?
Yes, smaller places are covered as well as towns. Our work covers the whole of Scotland. Let us know about access, parking and anything unusual about getting there when you book.
Can sand mastic be painted?
The usual advice is to leave sand mastic unpainted. Ask us before you decorate around it and we will talk you through it.
I’m a tenant. Can you help?
Yes, though it’s best to check with your landlord first. Landlords are often happy for the work to be arranged.
Do the sealants smell?
Sometimes, a little. It fades as the sealant cures, and ventilation helps.
Which is right for my windows, sand mastic or modern sealant?
We will talk it through with you. Sand mastic suits many period homes and newer frames suit modern sealant.
Do you take out the old sealant first?
Yes. All of the old material is cut out and the joint cleaned before applying anything new.
Is it worth trying it myself?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
