South Lanarkshire · Scotland
Window & door mastic in Hamilton, South Lanarkshire
Window and door frames in Hamilton need attention? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Rushed sealant from a window installation
- Cracked internal joints between frame and plaster
- Sealant in the wrong colour for the frame
Why act early in Hamilton
Running fresh sealant over the old joint is tempting, but it will not grip old, dirty sealant. It peels before long, and water still gets in behind. Proper resealing starts with removing the old joint. Scottish weather finds any gap, and in a town like Hamilton, failed outside joints soon let damp into walls. Inside, a failed seal around a bath or shower lets water into floors and ceilings.
What it costs depends on how much there is to do, how much old material has to come out and access to the work. You will have a clear quote before any work starts, so you know where you stand.
Why choose Mr Mastic in Hamilton
- Colour agreed with you before any work starts
- Over 20 years’ experience
- Old sealant always removed completely
- Quality sealants from Arbo and Everbuild
Take a look at our cost guide and customer reviews.
Window mastic in Hamilton
There are two joints on most windows. The external joint is the weather seal; inside, the joint between frame and plaster stops draughts and tidies the reveal. Either or both can be done. If you have old mastic that has gone black or come away and water coming in at the bottom corners of a door, we can put it right, whatever the surface.
Scottish weather is hard on window mastic, and a town like Hamilton gets its share of wind and rain. The windows facing the weather are normally the first to leak.
You’re covered for a year from the day we finish. If anything is not right with it, email us at info@mrmastic.co.uk.
- Place
- Hamilton (ML3, G72)
- Region
- South Lanarkshire
- Guarantee
- 12 months on all our work
- Quote
- A clear price before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026

Honest limits
We’d rather tell you now than do work that will not last, so here’s what sealant cannot put right:
- Damp coming through the wall itself rather than the frame joint
- A door that needs adjusting, rehanging or new seals
- Soft or decayed wood in the frame
If in doubt, email us at info@mrmastic.co.uk and we’ll say what we think.
Joints and surfaces we work on
- Patio & French doors
- Composite doors
- Window sills
- Timber windows & doors
- uPVC windows
- Aluminium frames
For landlords and businesses
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. Several properties can be quoted together.
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Your questions about window mastic in Hamilton
Do you work for landlords with property near Hamilton West station?
Yes. We work for landlords and agents as well as homeowners, and several properties can go on one quote. Just send an email to info@mrmastic.co.uk with the address and what needs doing, and we’ll give you a clear quote.
Can you do window mastic in Hamilton?
Yes, Hamilton is within the area we cover. We work across all of Scotland. Just drop us a line at info@mrmastic.co.uk with a few details of the job, and we’ll give you a clear price.
Can I add another job to the visit?
Yes. Tell us about everything you’d like done and we will quote it together.
Do you remove the old sealant?
Yes, every time. New sealant will not bond properly to old, so the joint is cleaned back first.
Do the sealants smell?
That depends on the sealant. Some smell for a while, some hardly at all, and any smell fades as they cure.
Can I do it myself?
It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional, while a short indoor joint may be within reach.
Can resealing stop a draught around my window?
Yes, where the draught is at the frame edge. We find where the air is coming from before we reseal.
Will it make a mess?
Very little: the area around the joints is protected first, and we tidy up before we go.
When to call us in Hamilton
Mastic ages in the weather. UV light hardens the outside of the bead, until it loses its stretch and starts to crack.
Keep an eye out for these signs:
- Draughty joints inside around the window
- Mastic that is falling out in pieces
- Damp patches on the reveal after heavy rain
- Untidy mastic left by window fitters
If you look after a building such as Earnock High School, the mastic around its windows and doors needs looking after like any other building’s.
What to look for in a quote
- What happens if the job turns out different
- Are they insured?
- What preparation is included
- How long to leave it before use
Also near Hamilton
What else we do in Hamilton
Looking after it afterwards
To keep the joints looking good and working properly:
- Air rooms to keep condensation down around windows
- Check the mastic once a year
- Make sure the drainage slots aren’t blocked
- Wash the frames with mild soapy water
Keep the new mastic undisturbed while it cures, for as long as we advise. Keep jet washers away from the frames.
Leaks generally show up in wet, windy weather, but resealing works best in dry conditions. Sorting cracked mastic early means the joint is sound before the bad weather.
What we do, step by step
There’s no need to move everything out before we come, only the area right around the joints. Everything nearby is protected, and the job takes anything from an hour or two to a full day, depending on how many frames there are for a typical job. In a Scottish town like Hamilton, parking is generally straightforward, though older centres can be tighter. If you’re in a flat with a shared stair or a door entry system, let us know when you book.
- First, we go round the frames with you and agree the list.
- We remove the old mastic and clean the frame edge and wall.
- Deep gaps get closed-cell backing rod to set the depth.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- Every joint is tooled smooth and checked before we leave.
Getting ready for the visit
- Move anything stored near the joints
- For business premises, tell us about site rules or sign-in
- Tell us about any previous sealing or DIY attempts
How to get a quote
Need a quote? Please drop us a line at info@mrmastic.co.uk with a few details. We’ll explain what we’d do and give you a clear price before work begins.
Advice
Frames and glazing around Hamilton
Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and failed outside joints work against that. The west of Scotland is wetter than the east, which means the mastic around window and door frames has to cope with a lot of rain.
If you live in an older home near Auchingramont Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. Letting a property close to Hamilton West station? Then cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Hamilton is about 10 miles south-east of Glasgow, in South Lanarkshire. Hamilton gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. Across South Lanarkshire, we cover 139 places, Hamilton among them. Glasgow is on our list too, about 10 miles from Hamilton.
Every address in ML3 and G72 is within our area for window mastic. You will find streets such as Dykehead Square, Cadzow Bridge Square and Portland Square. Hamilton is on the A72 and A723, which makes it straightforward to reach. We also cover Neilsland (1 mile south), Laighstonehall (1 mile south-west), Woodhead (1 mile south), Burnbank (1 mile north-west) and Hillhouse (1 mile west). Larger places within reach include East Kilbride (5 miles west), Cambuslang (5 miles north-west), Uddingston (4 miles north), Larkhall (4 miles south-east), Carluke (9 miles east) and Rutherglen (7 miles north-west). Being one of South Lanarkshire’s larger places, Hamilton has homes, rented property and businesses of every kind.
Local landmarks in Hamilton
Around Hamilton, our work takes us to homes and buildings near Iona Ridge Park and the streets around them. The nearest railway station is Hamilton West station, about 0.7 miles north. Nearby you’ll also find Cadzow Castle (1.8 miles east) and Udston Hospital (0.9 miles north-west). Open spaces near Hamilton include Strathclyde Loch and Baron's Haugh RSPB Reserve.
Can I do it myself?
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
