Scottish Borders · Scotland
Sand mastic for sash & case windows in Clockmill, Scottish Borders
Professional sand mastic in and around Clockmill, with old sealant always removed completely and a 12-month guarantee.
- Old cement repairs round a window that have failed
- Mastic that needs renewing before redecorating
- Mastic round period door frames that has failed
Sand mastic in Clockmill
For a listed home or one in a conservation area, ask your local planning authority whether consent is needed for work to windows. Like-for-like sand mastic is often the preferred finish. If you’re dealing with gaps between timber frames and stone or brick and patchy fillers round a sash window, we can help.
Outdoor sealant needs a dry surface, so window work around Clockmill is planned around the weather, and longer journeys are planned in advance. Tell us about access to all the windows and doors, upstairs included.
There’s a 12-month guarantee on every job.
- Place
- Clockmill (TD11)
- Region
- Scottish Borders
- Cover
- A year, on every job
- Quote
- A clear price before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
For landlords and businesses
Hotels need rooms back in use, so the work can be planned room by room. We have worked in hotels as well as homes and businesses.
If you manage several properties in or around Clockmill, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs.
What happens on the day
There isn’t much for you to do on the day. Point us to the joints and we’ll get on with it. The job generally takes a few hours for a single window, longer for several, including the tidy-up. For a place like Clockmill, 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.
- Deep gaps are packed so the mastic sits at the right depth.
- The sand mastic is mixed and pressed into the joint by hand.
- We dress the finish so it sits neatly against the masonry.
Getting ready for the visit
- Clear the area around the work
- Let us know about parking restrictions
- For business premises, tell us about site rules or sign-in
How to get a quote
For a quote, email us at info@mrmastic.co.uk with the location and a short description of the problem. You will have a clear quote before we start.
Advice
Frames and glazing around Clockmill
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. Sash and case windows are common in older Scottish homes, often pointed into the wall with traditional sand mastic.
In the older streets around Old Parish Church of St Cuthbert, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Clockmill is in the Scottish Borders. If you need sand mastic in Clockmill, please email us at info@mrmastic.co.uk for a quick quote. We cover the Scottish Borders from our Crawley base, Clockmill included. Across the Scottish Borders, we cover 89 places, Clockmill among them. Edinburgh is on our list too, around 34 miles away.
Every address in TD11 is within our area for sand mastic. We also cover the places around Clockmill: Gavinton (1 mile south), Duns (1 mile east), Preston (3 miles north-east), Longformacus (5 miles north-west) and Swinton (6 miles south-east). Within a short drive, we also cover Kelso (12 miles south), Eyemouth (13 miles north-east), Earlston (15 miles south-west), Lauder (15 miles west) and Chirnside (6 miles east).
Near you in Clockmill
Nearby you will also find Jim Clark Motorsport Museum (1 mile east) and Langton Castle (0.8 miles west). Open spaces near Clockmill include Hule Moss and Duns Castle nature reserve.
More services for Clockmill
Quotes for sand mastic in Clockmill
Every job gets its own quote. These are the things that affect it:
- The number and length of the joints
- How many areas need sealing
- Whether the work is at height
- Mould in or behind the old joints
The cost depends on the size of the job, how much old material has to come out and access to the work. You will have a clear quote before any work starts.
Asking for a quote
There’s no need for technical detail. Just tell us:
- Pictures of the joints, sent by email
- How many joints, rooms or windows are involved
- The address or postcode of the job
- Access, such as stairs, a lift or height
Asking for a quote is easy: let us know what needs doing and where and its rough size. A few photos by email make the job easier to understand.
Why act early in Clockmill
New sash windows are a major, costly change and on a listed home, consent may be needed. If the frames are sound, renewing the mastic deals with gaps and draughts at the surround. Out of town in Scotland, exposed walls take a lot of weather, and once water gets behind a failed joint, damp in stone or harled walls is slow to dry out.
Rather than a set price list, we price the job in front of us: 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
- ARBOMaster approved applicator
- Homes, businesses and hotels
- Sanitary silicone with an anti-fungal additive in wet areas
- Neat joints and a tidy finish
Read how sealant jobs are priced and customer reviews.
What the job involves on each surface
Period and listed homes
Sand mastic is the like-for-like choice for many period homes. If your home is listed, ask your local planning authority about consent.
Brick reveals
Sand mastic is also used where timber frames meet brick. It suits older brickwork.
Clockmill: your questions answered
Do you cover smaller places like Clockmill?
Yes. Clockmill is within the area we cover, which takes in towns, villages and rural addresses. Our work covers the whole of Scotland. Just mention lanes, gates or anything else about the route when you book.
What guarantee comes with sand mastic in Clockmill?
All our work, in Clockmill and everywhere else, comes with a 12-month guarantee. We are also fully insured and ARBOMaster approved.
Should I check with the council before work on a listed or conservation-area home?
It’s best to ask your local planning authority first. Like-for-like sand mastic is often the preferred finish, but they decide.
Does someone need to be in?
If the work is inside, we need someone to let us in. Once we’ve agreed the job, you do not need to watch us work.
Do you have insurance?
Yes. We are fully insured.
Do you do commercial work?
Yes. We work in offices, washrooms, hotels and other commercial premises. Working times can be discussed when we quote.
What exactly is sand mastic?
A traditional pointing material made from sand and a linseed-oil-based binder, used between timber frames and stone or brick.
How long does the job take?
As a guide, most jobs take a few hours per window, depending on the condition of the joints. Bigger jobs take longer, and we will say how long yours will take.
When to call us in Clockmill
Timber swells and shrinks with the weather. The movement cracks the mastic little by little.
Keep an eye out for any of the following:
- Tired mastic found when preparing windows for paint
- Failed mastic on an exposed elevation
- Cement or filler used on old window joints that has cracked
- Draughty sash windows at the surround
If you look after a building such as Berwickshire High School, the mastic around its windows and doors needs looking after like any other building’s.
Questions to ask before booking
- How the colour is chosen
- How long the guarantee is
- Whether VAT is included
- Who does the work, and how experienced they are
When it isn’t the sealant
Before booking, it’s worth knowing the limits too:
- Timber that has rotted
- Planning or listed building consent (your local planning authority decides)
- Damaged stone surrounds
If in doubt, send an email to info@mrmastic.co.uk and we will say what we think.
Joints and surfaces we work on
- Period & listed homes
- Sash and case windows
- Stone surrounds
- Brick reveals
- Timber door frames
- Tenement windows