Argyll and Bute · Scotland
Kilcreggan Window Mastic
Mastic around window and door frames, sills and patio doors for Kilcreggan, backed by a 12-month guarantee. Ask us for a quote.
- Rain getting in at the frame or under the sill
- Black, perished sealant on frames
- Sealant in the wrong colour for the frame
About our window mastic in Kilcreggan
The new joint does not have to be white. White, brown, anthracite grey, black and clear sealants are all available, so the line suits the frame instead of standing out. If you have gaps between the frame and the inside reveal and a bead that doesn’t match the frame, we can help.
Older stone-built homes in Scotland often have sash and case or timber windows set in stone. The sealant has to suit the stone, which rules out acetoxy silicones that can mark or attack it.
The work is covered for a year after we finish. If anything is not right with it, email us at info@mrmastic.co.uk.
- Location
- Kilcreggan (G84)
- Region
- Argyll and Bute
- Guarantee
- One year on every job
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026

What window mastic looks like in Kilcreggan
Kilcreggan is within about 1 mile of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on the mastic around window and door frames, which can dry out and crack sooner where a building faces the weather. 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.
In the older streets around Craigrownie Parish Church, the joint between an old wall and a newer frame is generally the first place rain gets in. Letting a property close to Gourock station? Then sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Kilcreggan is about 4 miles north-west of Greenock, in Argyll and Bute. Every kind of property in Kilcreggan can book us for window mastic. The work is guaranteed for a year. We cover 118 towns and villages across Argyll and Bute, from the larger towns to small villages. There’s also a page for Glasgow, roughly 23 miles from Kilcreggan.
We work across the G84 postcode area for window mastic and the streets around it. That includes homes and businesses on Church Road, Barbour Road and Argyll Road. We also cover the places around Kilcreggan: Gourock (2 miles south), Midton (2 miles south), Ashton (3 miles south), Blairmore (3 miles west) and Trumpethill (3 miles south). Larger places within reach include Helensburgh (4 miles east), Dunoon (4 miles south-west), Rothesay (14 miles south-west), Rhu (3 miles north-east), Garelochhead (7 miles north) and Port Bannatyne (13 miles south-west).
Near you in Kilcreggan
For rail, the closest station is Gourock station, about 1.9 miles south of the centre. Well-known places in the area include McLean Museum and Art Gallery (3.5 miles south-east) and Inverclyde Royal Hospital (3.1 miles south). Green spaces nearby include Loch Loskin and Lyle Hill.
When it isn’t the sealant
Honest advice matters more to us than a booking, so here’s what new sealant will not do:
- A door that needs adjusting, rehanging or new seals
- Damp coming through the wall itself rather than the frame joint
- Faulty window hardware
If in doubt, send an email to info@mrmastic.co.uk and we will say what we think.
Surfaces we seal
- Aluminium frames
- uPVC windows
- Timber windows & doors
- Composite doors
- Patio & French doors
- Window sills
What else we do in Kilcreggan
How the visit works
Our applicators work methodically: protect, prepare, seal, tidy. Typically it takes anything from an hour or two to a full day, depending on how many frames there are. 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.
- We start by checking each window and door with you.
- The old mastic is cut out and the surfaces cleaned back.
- Where gaps are deep, backing rod goes in first.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- Finally we tidy up and check each joint.
Preparing for the visit
- Let us know if you’ve seen damp or leaks
- Clear the area around the work
- Keep children and pets away from the work area
Ask for a quote
To get a quote, drop us a line at info@mrmastic.co.uk with the location and a short description of the problem. We will give you a clear price before any work starts.
Advice
DIY versus a professional finish
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Kilcreggan questions
Does living near the coast affect window mastic in Kilcreggan?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. The right product, a clean joint and the right depth all help it cope.
I let a flat near Gourock station. Can you help?
Yes. We work for letting agents and landlords as well as householders, and several properties can be quoted together. Just send an email to info@mrmastic.co.uk with the address and what needs doing, and we will give you a clear price.
Can you seal over the old sealant?
No, and we never do. It may look fine at first, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.
Where do you work from?
Our base is Crawley, with over 20 years’ experience. Our area covers South East England, London and Scotland.
Do you take out the old sealant first?
Yes, every time. New sealant will not bond properly to old, so the joint is cleaned back first.
Can I do it myself?
Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. If it does not work out, we can redo it.
Do you seal inside as well as outside?
Yes, we do both. Inside, the joint between frame and plaster is sealed neatly, using a paintable sealant if you want to decorate.
How do I get a quote for window mastic in Kilcreggan?
The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote.
Surface by surface
Window sills
Where a sill meets brick or render, the ends often crack first. A tight seal at each end keeps rain out of the wall.
uPVC windows
uPVC expands and contracts noticeably with temperature, so the joint needs a low-modulus sealant that stays flexible. We match white, brown, anthracite grey and black frames.
Common problems we fix in Kilcreggan
Timber windows bring their own problems. Old mastic gets painted over and cracks under the paint, and timber moves with moisture as well as temperature.
It’s worth asking for a quote if you see:
- Whistling draughts around closed windows
- Mastic that has split away from the wall
- Untidy mastic left by window fitters
- White mastic on grey or black frames
Schools such as Gourock High School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
Comparing quotes
- What guarantee comes with the work
- What preparation is included
- Whether VAT is included
- Who does the work, and how experienced they are
Landlords, agents and businesses in Kilcreggan
For anyone letting property in or around Kilcreggan, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs, and photos by email help.
Failed sealant is one of the commonest items on a check-out report. We can quote for more than one property at once.
Why it’s worth doing now in Kilcreggan
Choosing the product is half the job. Interior caulk and bathroom silicone are not made for exterior frame joints. A low-modulus exterior sealant keeps its stretch through hot and cold weather. In an older home around Kilcreggan, damp from a failed joint can get into timber and plaster, which is a far bigger job than the sealant.
We do not show prices on the website, because each job is priced on what it involves. Call for a quick quote and we will talk you through it.
Why us?
- Domestic, commercial and hotel work
- A sealant colour to suit the surroundings
- Approved under the ARBOMaster scheme
- Over 20 years’ experience
See our cost guide or our reviews.
