North Ayrshire · Scotland
Irvine Window Mastic
Window mastic across Irvine and nearby, with old sealant always removed completely and a 12-month guarantee.
- Leaking joints at the ends of sills
- Old mastic that has gone black or come away
- Rain getting in at the frame or under the sill
Window mastic for homes and businesses in Irvine
The new joint doesn’t have to be white. White, brown, anthracite grey, black and clear sealants are all available, so the bead blends with the window rather than framing it. Typical jobs include gaps left after new windows were fitted and cold air getting in at the frame edge, on window sills, uPVC windows and aluminium frames.
Scottish weather is hard on window mastic, and a town like Irvine gets its share of wind and rain. The windows facing the weather are usually the first to leak, so it’s worth checking them all.
We stand behind the work with a one-year guarantee, so you are not left on your own once the job is done.

- Place
- Irvine (KA11, KA12)
- Wider area
- North Ayrshire
- Cover
- A year, on every job
- Quote
- A clear price before work begins
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
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.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
Landlord and commercial work in Irvine
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
We work for letting agents and landlords as well as householders. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.
Aftercare tips
Once the sealant has cured, a few habits help it last:
- Keep drainage slots and sill grooves clear
- Do not paint over the silicone
- Keep solvents and bleach off the sealant
- Do not aim a pressure washer at the joints
Check the drainage slots in the frames are not blocked, so rain drains out rather than building up at the sealant.
Leaks usually show up in wet, windy weather, but resealing works best in dry conditions. Dealing with it when you first notice a crack avoids chasing leaks through the wet months.
When something else is needed
Honest advice matters more to us than a booking, so here’s what sealant cannot fix:
- A sash or casement that won’t close properly
- Misting between the panes of a double-glazed unit (that needs a new unit)
- Damp coming through the wall itself rather than the frame joint
If you are not sure, just email us at info@mrmastic.co.uk and we will give you a straight answer.
Joints and surfaces we work on
- Patio & French doors
- Composite doors
- Timber windows & doors
- Aluminium frames
- Window sills
- uPVC windows
Windows and doors in Irvine
Irvine is within about 2 miles of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s hard on the mastic around window and door frames, especially on the side facing the sea. Many older homes in Scotland have sash and case windows, and the joint between the box frame and the stone or render is traditionally pointed with sand mastic.
If you look after a building such as Greenwood Academy, larger buildings have plenty of frames, and the mastic around each one ages. Historic houses such as Montgreenan, about 3.2 miles north, show how far back building around Irvine goes. If you let a flat or house near Irvine station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Irvine is about 22 miles south-west of Glasgow, in North Ayrshire. If you need window mastic in Irvine, please drop us a line at info@mrmastic.co.uk for a quick quote. We are based in Crawley and cover North Ayrshire, Irvine included. 53 places in North Ayrshire are on our list. We also work in Glasgow, around 22 miles away.
Postcode districts we cover here for window mastic: KA11 and KA12. Window mastic is available to properties on Tamerlane Square, Allan Square and High Street. Being close to the A71 and A78, Irvine is easy for our applicators to reach. Close by, we work in Girdle Toll (1 mile west), Broomlands (1 mile south-east), Bourtreehill (1 mile east), Lands of Broomlands (1 mile south-east) and Fullarton (1 mile south-west). Larger places within reach include Kilwinning (3 miles north-west), Saltcoats (5 miles west), Largs (15 miles north-west), Ardrossan (7 miles west), Stevenston (4 miles west) and Kilbirnie (9 miles north). Irvine is among the bigger towns we cover in North Ayrshire.
Around Irvine
Locally, jobs take us to homes and businesses close to Irvine Royal Academy and the streets around them. The nearest railway station is Irvine station, about 1.2 miles south-west of the centre. Other landmarks nearby include The Vennel Gallery (0.7 miles south-west) and Ayrshire Central Hospital (1.3 miles north-west). For a walk, there’s Stevenston Loch.
Why act early in Irvine
The work is quick compared with the damage it prevents: the visit takes anything from an hour or two to a full day, depending on how many frames there are. Wait for damp to appear and there may be plaster and decorating to sort out too. For landlords in Irvine, damp and leaks can fall under the Repairing Standard. Replacing failed sealant early is simpler than dealing with a complaint.
Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs. Ask us for a quote and we’ll go through it with you.
What you get with us
- White, clear, grey or coloured to suit, where the product allows
- Quality sealants from Arbo and Everbuild
- ARBOMaster approved applicator
- 20+ years of sealant experience
Read our cost guide or what customers say.
How it works
When we arrive, we start by going over the job with you, so you know exactly what we’re doing. We protect the surfaces around the joints before any work begins. The work usually takes a morning for a couple of windows and a door. For a job in Irvine, tell us where the work is, how to get in and where to park. Outside work depends on the weather, as sealant needs a dry surface.
- We start by checking each window and door with you.
- We remove the old mastic and clean the frame and the wall.
- Where gaps are deep, backing rod goes in first.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- We clear up and check every joint is fully closed.
How to prepare
- Mention any tricky access
- Let us know about earlier repairs to the joints
- Mention any leaks or damp you’ve noticed
Ask for a quote
Getting a quote is simple: tell us what needs doing and where. Photos by email help us understand the job, and we will take it from there.
Advice
FAQs for Irvine
I let a flat near Irvine station. Can you help?
Yes, rental work is part of what we do. You can email us at info@mrmastic.co.uk with the address and a few details, and we’ll give you a fixed price before we start.
Can you do window mastic in Irvine?
Yes, Irvine is within the area we cover. Our work covers the whole of Scotland. Just send an email to info@mrmastic.co.uk with a few details of the job, and we’ll send you a clear quote.
Can you work on commercial sites?
Yes. We’ve worked for hotels, offices and other businesses and we’re fully insured.
Will you leave a mess?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
Is there any odour?
Some sealants have a smell while they cure. Opening a window helps.
What sealant do you use?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We explain the product when we quote.
Is the work guaranteed?
Yes. Every job comes with our one-year guarantee, and we’re fully insured.
What does window mastic cost?
Size, access and the old material all affect the cost. Call for a quick quote and we’ll talk you through it.
Towns and villages near Irvine
More services for Irvine
How the job changes by surface
Composite doors
An exposed front door gets wind-driven rain, and the top and bottom corners tend to fail first. We pay most attention there.
uPVC windows
Plastic frames move a lot between a hot afternoon and a cold night, so the joint needs a low-modulus sealant that stays flexible. We match white, brown, anthracite grey and black frames.
