Aberdeenshire · Scotland
Window Mastic in Keyhead
Mastic around window and door frames, sills and patio doors for homeowners, landlords and businesses in Keyhead. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Cracked sealant at the sill ends
- A bead that does not match the frame
- Mastic that has split away from the wall
What affects the quote in Keyhead
Call for a quick quote. What matters most is:
- The amount of work
- Any mould that needs treating
- Any working-time requirements on site
- How much old sealant there is and how hard it is to remove
We do not show prices on the website, because the cost depends so much on the job itself. For a quick quote, please send an email to info@mrmastic.co.uk and we’ll talk you through it.
What to tell us for a quote
To help us quote quickly, let us know:
- How we’d reach the joints
- The address or postcode of the job
- Whether it has been sealed before
- The type of property
Want a quote for window mastic? Please drop us a line at info@mrmastic.co.uk with a few details. You will know what we plan to do, and what it will cost, before any work begins.
Window mastic for homes and businesses in Keyhead
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 leaking joints at the ends of sills and white mastic on grey or black frames, we can put it right.
Many older Scottish homes still have timber windows set into stone walls. Those suit a traditional sand mastic or a neutral-cure sealant, not an acetoxy silicone that can attack some stone.
Every job is covered by a one-year guarantee, wherever you are in Aberdeenshire.
- Where
- Keyhead (AB42)
- Region
- Aberdeenshire
- Cover
- One year on every job
- Quotes
- A clear price before we start
- info@mrmastic.co.uk
- Last updated
- 26 October 2026

Should I try it myself 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.
If you are set on DIY, put the effort into 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.
Keyhead questions
Is Keyhead within the area you cover?
Yes, smaller places are covered as well as towns. We work across all of Scotland. Let us know about access, parking and anything unusual about getting there when you book.
Can you do window mastic in Keyhead?
Yes, Keyhead is within the area we cover. Our work covers the whole of Scotland. You can email us at info@mrmastic.co.uk and let us know what needs doing.
Will you leave a mess?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
Are you fully insured?
Yes. Full insurance covers our work, and we can confirm the details when we quote.
Is it worth trying it myself?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.
Do I have to be there?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
Will new mastic stop draughts?
If the draught is coming in around the frame, yes. If it’s coming through the window seals, we’ll tell you.
Can new sealant go over the old?
No. The old sealant always comes out first.
When to call us in Keyhead
Frames are never completely still. A plastic or aluminium frame lengthens in sunshine and shortens as it cools, while the masonry beside it stays put. If the sealant can’t stretch, it splits.
Any of these means the joints need attention:
- Rushed sealant from a window installation
- A bead that doesn’t match the frame
- Cracked or shrunken mastic around the frame
- Rain getting in at the frame or under the sill
For jobs in and around Keyhead, choosing the right material for each joint is as important as a tidy finish.
Before booking anyone
- Whether they seal over old material or remove it
- What product goes in the joint
- What the cure time is
- Who does the work, and how experienced they are
How the visit works
We keep the work tidy and contained to the area we are working on, so you can get on with your day. The job normally takes anything from an hour or two to a full day, depending on how many frames there are. Outdoor work around Keyhead depends on the weather, as sealant needs a dry surface, so an outdoor job can move if the forecast changes. Work indoors is not affected.
- We check how each frame can be reached safely.
- Old, cracked mastic is removed completely, along with any loose debris.
- Frame and wall are cleaned and must be dry before sealing, and primed where the sealant calls for it.
- Backing rod fills deep voids and the sealant goes in on top.
- The joint is shaped to shed water and the area tidied.
Getting ready for the visit
- On commercial sites, let us know about site rules
- Mention if the joints have been sealed before
- Plan for the work area to be out of bounds to pets and children
Get a quote
We don’t publish a price list, as no two jobs are quite the same. Instead, we give you a clear quote for your job. To get started, drop us a line at info@mrmastic.co.uk.
Related advice
Surface by surface
Window sills
Sills catch the water running down the glass, so the sill ends and the joint under the frame are vital. Each is cleaned out and resealed.
Timber windows & doors
Soft or rotten wood can’t be sealed successfully. We will point out any rot we find, as a joiner will need to deal with it.
Also near Keyhead
What else we do in Keyhead
Keyhead homes and the weather
Keyhead is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. 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.
In and around Keyhead, as anywhere, good window mastic starts with a clean, dry, properly prepared joint.
Keyhead is about 7 miles north-west of Peterhead, in Aberdeenshire. We carry out window mastic for homes and businesses in Keyhead and the surrounding area. Across Aberdeenshire, we cover 161 places, and Keyhead is one of them. For nearby work, see our Aberdeen page (31 miles or so).
Work in AB42 is quoted and booked the same way as anywhere else. We also cover Kirktown (3 miles south-east), St Fergus (3 miles south-east), Rora (3 miles south), Inverugie (6 miles south) and Downiehills (6 miles south). Larger places within reach include Peterhead (7 miles south-east), Fraserburgh (8 miles north-west), Roanheads (7 miles south-east), Clerkhill (7 miles south-east), Port Henry (7 miles south-east) and Mintlaw (7 miles south-west).
Near you in Keyhead
A little further out are Castle of Rattray (1.7 miles north-east). Green spaces nearby include Loch of Strathbeg.
Honest limits
Some problems need a builder, plumber or other trade rather than us:
- Misting between the panes of a double-glazed unit (that needs a new unit)
- A door that needs adjusting, rehanging or new seals
- Damp problems in the wall away from the window
If in doubt, drop us a line at info@mrmastic.co.uk and we will say what we think before you book.
Surfaces we seal
- Patio & French doors
- Timber windows & doors
- Window sills
- Aluminium frames
- uPVC windows
- Composite doors
Landlord and commercial work in Keyhead
Hotels need rooms back in use, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
