South Lanarkshire · Scotland
Drumclog Window Mastic
Mastic around window and door frames, sills and patio doors for Drumclog, backed by a 12-month guarantee. Ask us for a quote.
- Draughts coming in around windows and doors
- Rain getting in at the frame or under the sill
- A bead that does not match the frame
Window mastic in Drumclog, done properly
Behind a thin line of old mastic there’s sometimes a deep void. Filling it with sealant alone leaves a joint that cannot move properly, so deep gaps get backing rod first. The sealant then grips the two sides it should. If you’re dealing with gaps between the frame and the inside reveal and draughts coming in around windows and doors, we can put it right, whatever the surface.
Outdoor sealant needs a dry surface, so window work around Drumclog is planned around the weather. Let us know about access to every frame, including any upstairs.
We stand behind the work with a one-year guarantee, so you are covered after we have gone.
- Location
- Drumclog (ML10)
- Wider area
- South Lanarkshire
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026

When something else is needed
We will always be straight with you, so here’s what new sealant will not do:
- Condensation trapped between the panes
- A frame that has rotted at the joint
- Damp coming through the wall itself rather than the frame joint
If in doubt, send an email to info@mrmastic.co.uk and we’ll say what we think before booking.
Where we work in Drumclog
- Aluminium frames
- uPVC windows
- Patio & French doors
- Composite doors
- Window sills
- Timber windows & doors
How the visit works
All our tools and materials come with us in the van. After a quick look at the joints together, we protect the area and start. Most jobs take a morning for a couple of windows and a door. In smaller Scottish places, parking is usually less of an issue than access and distance. Let us know how to find you and how to reach the joints, and the visit is planned around that.
- First we look at every frame and agree the list.
- Next the failed sealant is cut away and the joint cleaned.
- Deep gaps are filled with backing rod to set the depth.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- We clear up and check every joint is fully closed.
Getting ready for the visit
- Clear items away from the joints we are working on
- For business premises, tell us about site rules or sign-in
- Tell us about any water getting in
How to get a quote
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is.
Read more
When to call us in Drumclog
On timber frames, paint and putty build up around the joint. Old mastic gets painted over and cracks under the paint, and timber moves with moisture as well as temperature.
If you can see any of these, it’s time to have the joints looked at:
- Cracked or shrunken mastic around the frame
- Old mastic that has gone black or come away
- Cracked sealant at the sill ends
- Cracked internal joints between frame and plaster
In and around Drumclog, as anywhere, good window mastic starts with a clean, dry, properly prepared joint.
What your quote should include
- How much experience the applicator has
- Whether you can choose the colour
- How the joint is cleaned and prepared
- How hidden problems are handled
How we quote for window mastic
The price is agreed before any work begins. It’s based on:
- The old material and how stubborn it is
- The type of sealant required
- Any working-time requirements on site
- The number of rooms or windows
Combining jobs into one visit normally makes better use of the time than several visits. You’ll get one clear quote for the whole job.
Asking for a quote
To help us quote quickly, let us know:
- Any access issues, like height or stairs
- Where the job is, and your postcode
- What the problem is, such as mould, gaps, leaks or cracking
- Roughly how big the job is
Need a quote? Please email us at info@mrmastic.co.uk with a few details. We’ll explain what we’d do and send you a clear quote before we start.
Window mastic in Drumclog: local notes
Sash and case windows are common in older Scottish homes, and the joint between the box frame and the stone or render is traditionally pointed with sand mastic. Drumclog is in the west of Scotland, which is wetter than the east, so there’s plenty of rain for the mastic around window and door frames to keep out.
Homes close to Drumclog Memorial Kirk include some older properties, and the joint between an old wall and a newer frame is usually the first place rain gets in.
Drumclog is about 9 miles south of East Kilbride, in South Lanarkshire. For window mastic in and around Drumclog, it’s easy to get a quote: please email us at info@mrmastic.co.uk. We’re based in Crawley and cover South Lanarkshire, Drumclog included. Drumclog is one of 139 towns and villages in South Lanarkshire we cover for window mastic. We also work in Glasgow, around 16 miles away.
Here we cover the ML10 postcode area for window mastic. Other places close to Drumclog include Priestland (4 miles west), Darvel (5 miles west), Strathaven (5 miles north-east), Sandford (6 miles north-east) and Chapelton (7 miles north-east). Within a short drive, we also cover East Kilbride (9 miles north), Hamilton (11 miles north), Cambuslang (13 miles north), Uddingston (14 miles north), Blantyre (12 miles north) and Larkhall (11 miles north-east).
Local landmarks in Drumclog
Open spaces near Drumclog include Loch Gate and Distinkhorn.
Different surfaces, different methods
Aluminium frames
Aluminium needs a sealant that bonds to coated metal. Neutral-cure sealant is the safe choice.
Composite doors
Composite doors are normally hung in an uPVC-type frame, and the joint around it is sealed like a window. We match the colour to the frame.
Drumclog questions
Is window mastic in Drumclog guaranteed?
Every job comes with our one-year guarantee, wherever it is. We are also fully insured and ARBOMaster approved.
Do you cover Drumclog for window mastic?
Yes. We work across all of Scotland, and Drumclog is part of that. You can email us at info@mrmastic.co.uk and let us know what needs doing, and we’ll give you a clear quote.
Do you seal inside as well as outside?
Yes. Plenty of draughts come through the inside joint as well as the outside, so it can be worth sealing both.
Can you get sealant to suit coloured frames?
Normally, yes. Mention the frame colour when you ask for a quote and we’ll use the nearest match.
Will the old sealant be removed?
Always. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
What do you put in the joint?
We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice.
What should I tell you?
Just the basics: the address or postcode, what’s wrong and any access issues. Then send an email to info@mrmastic.co.uk.
Can landlords and businesses book you?
Yes. We work for householders, landlords, letting agents, businesses and hotels in Drumclog.
Landlords, agents and businesses in Drumclog
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we will quote.
Failed sealant is one of the commonest items on a check-out report. Several properties can go on one quote.
DIY sealant or a professional job?
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
