Argyll and Bute · Scotland
Window Mastic in Lochdon
We cover Lochdon for mastic around window and door frames, sills and patio doors. Old material cut out, joints cleaned and sealed neatly.
- Cracked or shrunken mastic around the frame
- Cracked sealant at the sill ends
- Mastic that’s falling out in pieces
About our window mastic in Lochdon
A window frame and the wall around it expand and shrink at different rates. Heat and cold make frames grow and shrink against brick or render that hardly moves. So the sealant has to stretch and recover, which is why we use a low-modulus product. We work on timber windows & doors, uPVC windows and aluminium frames, and people most often call us about cracked or shrunken mastic around the frame and cracked internal joints between frame and plaster.
Outdoor sealant needs a dry surface, so window work around Lochdon is planned around the weather. Tell us about access to all the windows and doors, upstairs included.
There’s a 12-month guarantee on every job.
- Place
- Lochdon (PA64)
- Wider area
- Argyll and Bute
- Cover
- 12 months on all our work
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Why act early in Lochdon
Resealing frames is a short job: the visit takes most of a day for a typical house, less for a few frames. Leave it until water is coming in and you may need plastering and decorating as well. In an older home around Lochdon, damp from a failed joint can get into timber and plaster.
Every job is a little different, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we will explain the quote if you ask.
Why us?
- 180+ five-star Google reviews
- Trusted Arbo and Everbuild sealants
- A choice of colours where the product allows
- Experience in homes, commercial sites and hotels
See our cost guide or what customers say.
Signs you need window mastic in Lochdon
Joints that are too thin or too deep fail early. A skim of sealant over a wide gap soon tears, and a gap filled solid can’t flex. That’s what backing rod is for.
Look out for these signs:
- Gaps between the frame and the inside reveal
- Cold air getting in at the frame edge
- Rushed sealant from a window installation
- Cracked sealant at the sill ends
For jobs in and around Lochdon, choosing the right material for each joint is as important as a tidy finish.
Before booking anyone
- How long to leave it before use
- The length of the guarantee
- How the joint is cleaned and prepared
- Whether they’re fully insured
What window mastic looks like in Lochdon
Lochdon is within about 1 mile of 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.
In and around Lochdon, as anywhere, good window mastic starts with a clean, dry, properly prepared joint.
Lochdon is in Argyll and Bute. Lochdon gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. Our Argyll and Bute coverage runs to 118 places, and Lochdon is one of them. Glasgow is on our list too, around 68 miles away.
All of PA64 is within our area for window mastic. If you are just outside Lochdon, we cover Craignure (3 miles north), Lochaline (8 miles north-west), Dunollie (8 miles east), Ganavan (8 miles east) and Oban (9 miles east). For island and remote addresses, the job takes a little more planning, so let us know when you get in touch.
Local landmarks in Lochdon
A little further out are Duart Castle (1.9 miles north-east) and Mull and Iona Community Hospital (3.2 miles north).
Landlords, agents and businesses in Lochdon
We also work for property managers and facilities teams in Lochdon and across Argyll and Bute. We can quote a run of properties together.
We regularly work with letting and managing agents. Tell us the address, the job and how access works.
Your questions about window mastic in Lochdon
Is Lochdon within the area you cover?
Yes, Lochdon is covered. Our work covers the whole of Scotland, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Is Lochdon in your area for window mastic?
Yes. Our work covers the whole of Scotland, and Lochdon is part of that. You can send an email to info@mrmastic.co.uk and let us know what needs doing.
Are you insured?
Yes. We’re fully insured, and we have been doing sealant work for more than 20 years.
Can resealing stop a draught around my window?
Yes, where the draught is at the frame edge. We check where the draught is before any work starts.
Can I add another job to the visit?
Of course. Doing several areas at once is generally more efficient.
Are you an approved applicator?
Yes. Mr Mastic is an ARBOMaster approved applicator and we are fully insured too.
Does someone need to be in?
Access is agreed with you when the job is booked. Indoors, that generally means someone at home.
Can you reach windows above the ground floor?
Yes, in most cases. Access is planned before work begins, so mention the height and anything in the way.
Looking after it afterwards
Once the sealant has cured, a few habits help it last:
- Use gentle cleaners on frames and sealant
- Air rooms to keep condensation down around windows
- Repaint timber before it’s bare
- Keep paint off silicone joints
Have a look at the joints once a year, ideally after winter. Cracks and lifting edges are easy to spot early, and if anything looks wrong, just drop us a line at info@mrmastic.co.uk.
On timber windows, water behind the joint can lead to rot. Once wood has rotted, it needs repair before it can be sealed, so it pays to reseal before that happens.
When something else is needed
Sealant is not the answer to every problem, and we’ll tell you before we start. Sealant will not put right:
- Draughts through the window seals rather than the frame
- A sash or casement that won’t close properly
- Penetrating damp from a failed cavity tray or render
If in doubt, send an email to info@mrmastic.co.uk and we’ll say what we think.
What we seal
- Composite doors
- uPVC windows
- Aluminium frames
- Window sills
- Timber windows & doors
- Patio & French doors
Other services in Lochdon
How we quote for window mastic
The price is agreed before any work begins. It takes into account:
- Which sealant suits the joint
- The number and length of the joints
- Access and height
- How many rooms, windows or areas are involved
We don’t show prices on the website, because the cost depends so much on the job itself. For a quick quote, please email us at info@mrmastic.co.uk.
What we need to know
There’s no need for technical detail. It helps if you can tell us:
- A few photos by email, if you can
- How many joints, rooms or windows are involved
- Whether it has been sealed before
- Where the property is
We do not publish a price list. Instead, we send you a clear quote for your job. To get started, email us at info@mrmastic.co.uk.
The process
At the end, we look at the finished work together. The visit itself normally takes a few hours for a handful of frames, longer for a whole house, depending on the size of the job. Outside jobs in Lochdon need a dry day, because sealant won’t bond to a wet joint, so an outdoor job can move if the forecast changes. Indoor work goes ahead whatever the weather.
- First we look at every frame and agree the list.
- Next the failed sealant is cut away and the joint cleaned.
- Deep gaps are filled with backing rod to set the depth.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- Every joint is checked before we leave.
Getting ready for the visit
- Tell us about any water getting in
- Where the joints are inside, avoid wetting them before we arrive
- Clear items away from the joints we are working on
Getting a quote
If you are in Lochdon and need window mastic, email us at info@mrmastic.co.uk. Tell us what the problem is and where, and you will get a clear quote before work begins.