Argyll and Bute · Scotland
Craighouse Window Mastic
Mastic around window and door frames, sills and patio doors for homes and businesses in Craighouse and across Argyll and Bute. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Leaking joints at the ends of sills
- Rushed sealant from a window installation
- Hard, cracked sealant around windows
The process
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. For most jobs that takes a few hours for a few frames, or a day or more for a whole house. Somewhere like Craighouse may be a longer drive, and the journey is planned ahead. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- First, we confirm safe access to each frame.
- Old, cracked mastic is removed completely.
- Frame and wall are cleaned and must be dry before sealing, and primed where the sealant calls for it.
- Deep voids are backed, then the sealant is gunned in.
- The joint is shaped to shed water and the area tidied.
Getting ready for the visit
- Mention any tricky access
- Tell us about any previous sealing or DIY attempts
- For business premises, tell us about site rules or sign-in
Ask for a quote
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we will explain what’s involved and give you a clear price.
Related advice
How we handle window mastic in Craighouse
A window frame and the wall around it expand and shrink at different rates. Plastic and aluminium frames move with the temperature, while masonry stays fairly still. That’s why the joint needs a flexible, low-modulus sealant rather than something rigid. If you have a bead that doesn’t match the frame and gaps between the frame and the inside reveal, we can put it right, on timber windows & doors, patio & French doors and aluminium frames alike.
In and around a place like Craighouse, homes range from older stone-built cottages to newer houses. Exposed frames and sills take the full force of wind-driven rain.
All of our work is guaranteed for twelve months, in Craighouse and everywhere else we cover.
- Where
- Craighouse (PA60)
- Wider area
- Argyll and Bute
- Guarantee
- 12 months on all our work
- Quote
- A clear price before work begins
- info@mrmastic.co.uk
- Updated
- 26 October 2026
What window mastic looks like in Craighouse
Craighouse is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on the mastic around window and door frames, which can dry out and crack sooner where a building faces the weather. Many older homes in Scotland have sash and case windows, often pointed into the wall with traditional sand mastic.
Around Craighouse, as everywhere, window mastic is only as good as the preparation behind it. For an older house near a landmark such as Craighouse Parish Church, the joint between an old wall and a newer frame is usually the first place rain gets in.
Craighouse is in Argyll and Bute. Anywhere in PA60, our applicators can take on window mastic. Craighouse is one of 118 places in Argyll and Bute where we work. You can also see our page for Glasgow, roughly 65 miles from Craighouse.
We cover every part of the PA60 postcode area for window mastic. Window mastic is available to properties on Croft Park and Otter Brae. Nearby, we also carry out window mastic in Port Askaig (6 miles west), Keills (7 miles west), Bunnahabhain (7 miles west), Ardminish (14 miles south-east) and Bowmore (14 miles south-west). Island and remote addresses take a little more planning, so tell us where you are when you ask for a quote.
Local landmarks in Craighouse
Not far away are Lochan Gleann Astaile and Glas Bheinn.
When it is not the sealant
Honest advice matters more to us than a booking, so here’s what new sealant won’t do:
- Worn gaskets, brush seals or a door that has dropped
- A failed sealed unit that has misted up
- Damp coming through the wall itself rather than the frame joint
If in doubt, email us at info@mrmastic.co.uk and we will say what we think before you book.
Surfaces we seal
- Window sills
- Composite doors
- Aluminium frames
- uPVC windows
- Timber windows & doors
- Patio & French doors
Questions from Craighouse
Does the coastal weather in Craighouse affect outside sealant?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Can you do window mastic in Craighouse?
Yes, Craighouse is within the area we cover. We work across all of Scotland. Just send an email to info@mrmastic.co.uk with a few details of the job, and we’ll give you a clear price.
Can you seal over the old sealant?
No, it won’t last. It may look fine at first, but the new bead soon lifts. The old sealant has to come out completely.
Can you quote for more than one area?
Yes. Tell us about everything you’d like done and you will get one quote.
Can you do upstairs windows?
Yes, as long as they can be reached safely. Tell us about access when you get in touch so we can plan the job.
What do you need from me for a quote?
Let us know what needs doing and where, with pictures by email if possible. We’ll ask anything else we need to know.
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 is a different fix, and we’ll say so.
Can you match the sealant to my frames?
Yes, we choose a colour to suit the frame. Grey and black frames get grey or black sealant, and wood-effect frames usually suit brown.
Towns and villages near Craighouse
What else we do in Craighouse
What the job involves on each surface
Composite doors
If the door itself is draughty, the issue may be the door seals or hinges rather than the frame mastic. We seal the frame and let you know about anything else.
Aluminium frames
Metal frames expand in the sun and are often slim, with little room for error. A neat, narrow bead in a colour to match keeps the clean look.
Keeping the joints in good condition
So the new joints stay in good condition:
- Wipe condensation off the frames
- Repaint timber before it’s bare
- Keep solvents and bleach off the sealant
- Walk round the house once a year and look at the joints
Keep the new mastic undisturbed while it cures, following the cure time we give you. Don’t point a pressure washer at the joints.
A failed joint lets water into the wall a little at a time. Often the first sign is a damp patch inside or flaking paint on the reveal. Early resealing stops it reaching that point.
What affects the cost of window mastic
There’s no set price list, because no two jobs are the same. The quote depends on:
- How many areas need sealing
- Whether there’s mould to deal with
- The number and length of the joints
- Any working-time requirements on site
Leaving a failed joint usually makes the job bigger, not smaller. If you are not sure whether it needs doing, drop us a line at info@mrmastic.co.uk for an honest opinion and a quote.
Asking for a quote
Before you ask for a quote, have a think about:
- Any access issues, like height or stairs
- Where the job is, and your postcode
- The problem you’ve noticed
- Whether it’s a home or a business
Want a quote for window mastic? Please drop us a line at info@mrmastic.co.uk and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
Why deal with it now?
Choosing the product is half the job. Decorators’ caulk and bathroom silicone aren’t designed for outside joints that move. An exterior, low-modulus sealant stays flexible in sun and frost. Around Craighouse, water from a failed joint in an older stone home can soak into timber and plaster, which is a far bigger job than the sealant.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
Why book with us
- Neat joints and a tidy finish
- Old sealant always removed completely
- One-year guarantee on every job
- Trusted Arbo and Everbuild sealants
Read how sealant jobs are priced or our reviews.
Can I do it myself?
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.