South Lanarkshire · Scotland
Hamilton West Window Mastic
Mastic around window and door frames, sills and patio doors for homes and businesses in Hamilton West and across South Lanarkshire. Fully insured, ARBOMaster approved and guaranteed for a year.
- Whistling draughts around closed windows
- Draughty joints inside around the window
- Cracked sealant at the sill ends
How we handle window mastic in Hamilton West
Frames and walls don’t move together. Heat and cold make frames grow and shrink against brick or render that hardly moves. That’s why the joint needs a flexible, low-modulus sealant rather than something rigid. Typical jobs include cracked sealant at the sill ends and draughts coming in around windows and doors, on aluminium frames, timber windows & doors and patio & French doors.
Across smaller places in Scotland, homes range from stone and harled cottages to newer houses, many standing in the open. Wind-driven rain finds any gap around a frame or sill, so the mastic there works hard.
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.
- Location
- Hamilton West (ML3)
- Wider area
- South Lanarkshire
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026

Should I try it myself first?
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it does not work out, we can still put it right.
When to call us in Hamilton West
Some failures date back to when the windows were fitted. Mastic laid onto dusty, damp or crumbling surfaces never bonded as it should, so it comes away long before its time.
Most people get in touch after spotting one of these:
- Draughts coming in around windows and doors
- Water coming in at the bottom corners of a door
- Untidy mastic left by window fitters
- Cracked internal joints between frame and plaster
Homes close to Hamilton North Church include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Comparing quotes
- What guarantee comes with the work
- What happens if they find a problem under the old sealant
- Which sealant they’ll use, and why
- How much experience the applicator has
Questions from Hamilton West
I let a flat near Hamilton West station. Can you help?
Yes. We work for landlords and letting agents as well as homeowners. Just send an email to info@mrmastic.co.uk with the address and what needs doing, and we will give you a clear quote.
Do you cover Hamilton West for window mastic?
Yes. We work across all of Scotland, and Hamilton West is part of that. You can send an email to info@mrmastic.co.uk and tell us what needs doing, and we will send you a clear quote.
What do you put in the joint?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
Do you do commercial work?
Yes. We’ve worked for hotels, offices and other businesses and we are fully insured.
What information do you need?
Only a few details: the address or postcode, what’s wrong and any access issues. After that, simply send an email to info@mrmastic.co.uk.
Is there any odour?
There can be a smell while the sealant cures, which fades as it sets. Ventilation helps.
Will resealing my frames help with draughts?
Yes, if the air is getting in around the frame. If it’s through the window’s own seals or a hinge, that’s a different fix, and we’ll say so.
Do you work on first-floor windows?
Yes, in most cases. We plan safe access before the job.
Aftercare tips
After the cure time, these simple habits help:
- Don’t aim a pressure washer at the joints
- Check the mastic once a year
- Use gentle cleaners on frames and sealant
- Don’t paint over the silicone
Have a look at the joints once a year, ideally after winter. Small splits are simple to catch before they leak, and if anything looks wrong, just send an email to info@mrmastic.co.uk.
Look out for the warning signs: split or missing mastic, gaps, damp patches inside or black mould on the reveal. Any of these is worth a call.
Frames and glazing around Hamilton West
Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and sound outside sealant is part of that. Historic houses like Cambusnethan House (about 4.7 miles south-east) are a reminder that the area around Hamilton West has older buildings as well as new. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
If you look after a building such as Holy Cross High School, its window and door frames need their mastic kept sound, just like a home’s. Letting a property close to Hamilton West station? Then sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Hamilton West is about 1 mile north-east of Burnbank, in South Lanarkshire. Anywhere in ML3, our applicators can take on window mastic. 139 places in South Lanarkshire are on our list. Glasgow is on our list too, around 10 miles away.
Our applicators cover all of the ML3 postcode area for window mastic and the streets around it. If you need window mastic at a property on Kenmar Road, Hunter Road and Backmuir Road or a nearby road, we can help. Hamilton West sits on or near the A724. Other places close to Hamilton West include Burnbank (1 mile south-west), Hamilton (1 mile south), Neilsland (1 mile south), Laighstonehall (1 mile south) and Auchinraith (1 mile west). We also work in nearby towns such as East Kilbride (6 miles west), Cambuslang (4 miles north-west), Uddingston (3 miles north), Larkhall (5 miles south-east), Carluke (9 miles south-east) and Rutherglen (7 miles north-west).
Local landmarks in Hamilton West
In Hamilton West, that means homes and buildings near Bothwell Road Park and 1 Bourne Street And 8 Keith Street pub and the streets around them. Hamilton West has its own railway station: Hamilton West station. A little further out are Udston Hospital (1.2 miles west) and Low Parks Museum (0.8 miles south-east). For a walk, there’s Baron's Haugh RSPB Reserve and Strathclyde Loch.
What the job involves on each surface
uPVC windows
The frame is cleaned with a product that will not harm the plastic, then the new bead is laid against the frame and the wall.
Patio & French doors
Door frames take knocks and movement every time the doors are used. The sealant must cope with it.
What happens on the day
Every visit runs the same way: we look at the joints together, protect the area around them, carry out the job and tidy away. Most jobs take anything from an hour or two to a full day, depending on how many frames there are. For a place like Hamilton West, longer drives are planned in advance. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- We check how each frame can be reached safely.
- All the failed sealant is cut away, along with any loose debris.
- The surfaces are cleaned and left dry, and primed where the sealant calls for it.
- Deep voids are backed, then the sealant is gunned in.
- We tool the joint so water runs off, then clear up.
Before we arrive
- Plan for the work area to be out of bounds to pets and children
- Mention any leaks or damp you’ve noticed
- Mention any parking rules near the property
Ask for a quote
There’s no standard price list. Instead, we give you a clear quote for your job. To arrange one, send an email to info@mrmastic.co.uk.
Related advice
What affects the cost of window mastic
Call for a quick quote. The main things that affect it are:
- Any mould that needs treating
- Whether the work is at height
- The number of rooms or windows
- Whether old sealant or filler has to be cut out
Combining jobs into one visit is normally more efficient than separate visits, so it’s worth mentioning everything you’d like done. We will send you a clear quote for the lot.
Asking for a quote
What to tell us when you ask for a quote:
- Any previous sealing or DIY work
- Pictures of the joints, sent by email
- If it’s domestic, commercial or a hotel
- The problem you’ve noticed
We quote each job on its own, so start by telling us what you need. Simply email us at info@mrmastic.co.uk and describe the job and send photos if you have them.
When something else is needed
New sealant can’t fix everything, and we will tell you before we start. Sealant will not put right:
- Rotten timber, which needs a joiner first
- Draughts through the window seals rather than the frame
- Damp problems in the wall away from the window
If you’re not sure, just send an email to info@mrmastic.co.uk and we will give you a straight answer before booking.
Joints and surfaces we work on
- uPVC windows
- Timber windows & doors
- Window sills
- Composite doors
- Aluminium frames
- Patio & French doors
