South Lanarkshire · Scotland
Window Mastic in Crutherland
Professional window mastic in and around Crutherland, with every bit of old sealant taken out first.
- Rushed sealant from a window installation
- Mastic that’s falling out in pieces
- Damp patches on the reveal after heavy rain
How we handle window mastic in Crutherland
The new joint does not have to be white. We can seal in white, brown, anthracite grey, black or clear, so the bead blends with the window rather than framing it. If you have old mastic that has gone black or come away and untidy mastic left by window fitters, we can help, on timber windows & doors, patio & French doors and composite doors 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.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we will sort it.
- Place
- Crutherland (G75)
- Wider area
- South Lanarkshire
- Guarantee
- 12 months on all our work
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Landlord and commercial work in Crutherland
We also work for property managers and facilities teams in Crutherland and across South Lanarkshire. Several sites can be quoted together.
For anyone letting property in or around Crutherland, several properties can be quoted together. Just tell us the addresses and what each one needs, and pictures by email help.
Quotes for window mastic in Crutherland
The quote reflects the job in front of us. We take into account:
- Any mould that needs treating
- The size of the job
- Any working-time requirements on site
- The type of sealant required
We do not show prices on the website, because the cost depends so much on the job itself. Call for a quick quote.
Helping us quote
Before you ask for a quote, have a think about:
- Where the property is
- A few photos by email, if you can
- The problem you’ve noticed
- Roughly how big the job is
Asking for a quote is easy: let us know the job and the location and its rough size. A few pictures by email make the job easier to understand, and we will come back to you with a quote.
DIY versus a professional finish
If you are 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.
The process
Before we leave, we go over the finished joints with you. The visit itself usually takes anything from an hour or two to a full day, depending on how many frames there are, depending on how much there is to do. Around Crutherland, distance and access matter more than parking. Let us know how to find you and how to reach the joints.
- We check how each frame can be reached safely.
- Old, cracked mastic is removed completely.
- The surfaces are cleaned and left dry.
- Deep voids are backed, then the sealant is gunned in.
- We tool the joint so water runs off, then clear up.
Before we arrive
- Mention any parking rules near the property
- For business premises, tell us about site rules or sign-in
- Tell us about any water getting in
Ask for a quote
For window mastic in Crutherland, email us at 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.
Related advice
Common problems we fix in Crutherland
On timber frames, paint and putty build up around the joint. 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:
- Mastic that has split away from the wall
- Sealant in the wrong colour for the frame
- Rain getting in at the frame or under the sill
- Cracked internal joints between frame and plaster
For site and facilities teams at buildings such as Mount Cameron Primary School, its window and door frames need their mastic kept sound, just like a home’s.
What to look for in a quote
- What happens if the job turns out different
- What insurance they hold
- How long to leave it before use
- How the joint is cleaned and prepared
When something else is needed
We’ll always be straight with you, so here’s what new sealant will not do:
- Condensation trapped between the panes
- Worn gaskets, brush seals or a door that has dropped
- Faulty window hardware
Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we’ll tell you honestly.
Surfaces we seal
- Aluminium frames
- Composite doors
- uPVC windows
- Patio & French doors
- Timber windows & doors
- Window sills
Surface by surface
uPVC windows
Fitters’ mastic on plastic frames is sometimes thin and rushed. It comes out, deep gaps get backing rod and the joint is resealed.
Composite doors
An exposed front door gets wind-driven rain. Those corners get the most care.
What window mastic looks like in Crutherland
Sash and case windows are common in older Scottish homes, often pointed into the wall with traditional sand mastic. 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.
Rented homes near East Kilbride station change hands often, and cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Crutherland is about 2 miles south of East Mains, in South Lanarkshire. Anywhere in G75, our applicators can take on window mastic. Across South Lanarkshire, we cover 139 places, and Crutherland is one of them. We also work in Glasgow, about 9 miles from Crutherland.
Here we cover the G75 postcode area for window mastic. You’ll find streets such as Colvilles Road, Torrance Avenue and Hurlawcrook Road, all of which we cover. If you’re just outside Crutherland, we cover Whitehills (1 mile west), Birniehill (1 mile north), St Leonards (1 mile north), The Murray (1 mile north-west) and Greenhills (1 mile west). We also work in nearby towns such as Hamilton (4 miles north-east), Cambuslang (5 miles north), Uddingston (7 miles north-east), Blantyre (4 miles north-east), Larkhall (7 miles east) and Carluke (13 miles east).
Local landmarks in Crutherland
We work in homes and buildings around Claremont High School and the streets around them. The nearest railway station is East Kilbride station, about 1.9 miles north-west of the centre. Nearby you’ll also find Hairmyres Hospital (2.8 miles north-west) and East Kilbride Shopping Centre (1.5 miles north-west). For a walk, there’s Cathkin Braes.
Your questions about window mastic in Crutherland
Do you work for landlords with property near East Kilbride station?
Yes. We work for letting agents and landlords as well as householders, and several properties can be quoted together. Just drop us a line at info@mrmastic.co.uk with the address and what needs doing, and we’ll send you a clear quote.
Will you come out to Crutherland?
Yes, we do. Our work covers the whole of Scotland, from towns to the smallest places. Longer journeys are simply planned in advance.
Do I have to be there?
Access is agreed with you when the job is booked. For inside work, that normally means someone being in.
Can new sealant go over the old?
No. Fresh sealant does not stick to old sealant, and anything trapped underneath, including mould and water, stays there. It all has to come out first.
Do you seal inside as well as outside?
Yes. Inside, the joint between frame and plaster is sealed neatly, using a paintable sealant if you want to decorate.
Do you have sealant for grey or black windows?
Yes, in most cases. Mention the frame colour when you ask for a quote and we’ll use the nearest match.
What information do you need?
Let us know what needs doing and where, with photos by email if possible. If we need more, we will ask.
Do the sealants smell?
Some sealants have a smell while they cure. Ventilation helps.