Scottish Borders · Scotland
Window & door mastic in Clockmill, Scottish Borders
We cover Clockmill for mastic around window and door frames, sills and patio doors. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Mastic that’s falling out in pieces
- Gaps between the frame and the inside reveal
- Mastic that has split away from the wall
Window mastic in Clockmill, done properly
Mr Mastic’s applicators have more than 20 years’ experience with window and door sealants. We’re fully insured ARBOMaster approved applicators, and we give a 12-month guarantee on the work. If you’re dealing with whistling draughts around closed windows and damp patches on the reveal after heavy rain, we can put it right, on composite doors, aluminium frames and patio & French doors alike.
Outdoor sealant needs a dry surface, so window work around Clockmill is planned around the weather. Tell us about access to all the windows and doors, upstairs included.
We guarantee the work for a year. If something isn’t right with it in that time, tell us and we’ll put it right.
- Place
- Clockmill (TD11)
- Wider area
- Scottish Borders
- Guarantee
- 12 months on all our work
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Can I do it myself?
If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
FAQs for Clockmill
Is Clockmill in your area for window mastic?
Yes, Clockmill is within the area we cover. We work across all of Scotland. Just email us at info@mrmastic.co.uk with a few details of the job, and we will give you a clear quote.
Is Clockmill within the area you cover?
Yes, Clockmill is covered. We work across all of Scotland, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Can tenants book the work?
Yes. Check with your landlord; we can send the quote to them too.
Can you seal over the old sealant?
No, it will not last. It can look neat for a few weeks, but the new bead soon lifts. The old sealant has to come out completely.
Do I need to be at home?
That depends on where the joints are. Inside work needs someone to give us access, and for outside work we’ll agree access with you when we book.
Can you match the sealant to my frames?
Yes. White, brown, anthracite grey, black and clear sealants are all available, so the joint suits the frame.
Where do you work from?
Our base is Crawley. Our area covers South East England, London and Scotland.
Can resealing stop a draught around my window?
Yes, if the air is getting in around the frame. If it’s through the window’s own seals or a hinge, that is a different fix, and we’ll say so.
Landlord and commercial work in Clockmill
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
For anyone letting property in or around Clockmill, several properties can be quoted together. Just tell us the addresses and what each one needs.
Leave it or put it right?
Once mastic fails, rain can get between the frame and the wall. Left long enough, it can stain inside walls, spoil plaster and rot wooden frames. A reseal is a much smaller job. In a place like Clockmill, small leaks are easy to put off, but water behind a failed seal does the most damage when nobody’s watching.
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you’re unsure, send an email to info@mrmastic.co.uk and we will give you an honest view and a quote.
Why us?
- Colour agreed with you before any work starts
- Anti-fungal silicone where joints get wet
- Quality sealants from Arbo and Everbuild
- A 12-month guarantee on all work
Read our cost guide and customer reviews.
Signs you need window mastic in Clockmill
Timber windows bring their own problems. Mastic painted over many times cracks with the paint, and timber moves with moisture as well as temperature.
Any of these means the joints need attention:
- Gaps between the frame and the inside reveal
- White mastic on grey or black frames
- Black, perished sealant on frames
- Whistling draughts around closed windows
Schools such as Berwickshire High School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.
Before booking anyone
- Whether they seal over old material or remove it
- What insurance they hold
- Whether VAT is included
- What guarantee comes with the work
What else we do in Clockmill
What happens on the day
You don’t need to clear the whole room or building, only the area right around the joints. Everything nearby is protected, and the job takes a morning for a couple of windows and a door in most cases. Outside jobs in Clockmill 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 isn’t affected.
- First we look at every frame and agree the list.
- We remove the old mastic and clean the frame and the wall.
- Where gaps are deep, backing rod goes in first.
- A flexible, weatherproof sealant is applied in a colour to suit the frame.
- Every joint is checked before we leave.
Preparing for the visit
- Let us know about earlier repairs to the joints
- Mention any parking rules near the property
- Clear items away from the joints we’re working on
How to get a quote
We do not publish a price list, because every job is different. Instead, your job gets its own clear quote. To get started, email us at info@mrmastic.co.uk.
Advice
What we can’t put right
New sealant cannot fix everything, and we’ll tell you before we start. Sealant won’t put right:
- A frame that has rotted at the joint
- Damp problems in the wall away from the window
- A door that needs adjusting, rehanging or new seals
If in doubt, send an email to info@mrmastic.co.uk and we’ll say what we think.
Where we work in Clockmill
- Window sills
- Composite doors
- Aluminium frames
- uPVC windows
- Patio & French doors
- Timber windows & doors
Quotes for window mastic in Clockmill
Your quote is based on your job. We take into account:
- Whether the work is at height
- Any mould that needs treating
- Which sealant suits the joint
- Working hours on commercial sites
Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs, plus any working-time requirements on site. Ask us for a quote and we’ll go through it with you.
What to tell us for a quote
You do not need to know the technical terms. Just tell us:
- The type of property
- The address or postcode of the job
- The rough size of the job
- A few pictures by email, if you can
Every job is quoted individually, so start by telling us what you need. Just drop us a line at info@mrmastic.co.uk with the details.
Window mastic in Clockmill: 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. Sash and case windows are common in older Scottish homes, often pointed into the wall with traditional sand mastic.
For an older house near a landmark such as Old Parish Church of St Cuthbert, the joint between an old wall and a newer frame is usually the first place rain gets in.
Clockmill is in the Scottish Borders. Across the TD11 area, we cover window mastic for homes and businesses. Clockmill is one of 89 towns and villages in the Scottish Borders where we work for window mastic. There’s also a page for Edinburgh, roughly 34 miles from Clockmill.
All of TD11 is within our area for window mastic, from the main roads to the quietest streets. Nearby, we also carry out window mastic in Gavinton (1 mile south), Duns (1 mile east), Preston (3 miles north-east), Longformacus (5 miles north-west) and Swinton (6 miles south-east). We also work in nearby towns such as 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’ll also find Jim Clark Motorsport Museum (1 mile east) and Langton Castle (0.8 miles west). For a walk, there’s Hule Moss and Duns Castle nature reserve.