Aberdeen · Scotland
Hill of Keir Window Mastic
Professional window mastic in and around Hill of Keir, with every bit of old sealant taken out first.
- Hard, cracked sealant around windows
- A bead that does not match the frame
- Draughts coming in around windows and doors
Looking after it afterwards
Once the sealant has cured, a few habits help it last:
- Repaint timber before it’s bare
- Do not paint over the silicone
- Look round the frames every year or so
- Avoid blasting the frames with a pressure washer
Wipe the frames with soapy water when you clean the windows, and keep solvents and harsh chemicals off the joint.
A small gap around a frame only grows. As the old mastic shrinks further, more air gets through, and a cold room gets colder. Resealing closes it.
Window mastic in Hill of Keir, done properly
Some gaps around frames are far deeper than they look. Packing it solid with sealant gives a joint that cannot flex, so deep gaps get backing rod first. The sealant then grips the two sides it should. If you are dealing with mastic that’s falling out in pieces and rain getting in at the frame or under the sill, we can put it right, on aluminium frames, patio & French doors and timber windows & doors alike.
Outdoor sealant needs a dry surface, so window work around Hill of Keir is planned around the weather. Tell us about access to all the windows and doors, upstairs included.
Our work is backed for twelve months.
- Location
- Hill of Keir (AB23)
- Region
- Aberdeen
- Guarantee
- A year, on every job
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
What we are called out for in Hill of Keir
Mastic ages in the weather. Sunlight dries the surface out, until it loses its stretch and starts to crack.
These are the problems we’re asked about most:
- Leaking joints at the ends of sills
- Cold air getting in at the frame edge
- Gaps between the frame and the inside reveal
- Rain getting in at the frame or under the sill
Around Hill of Keir, as everywhere, window mastic is only as good as the preparation behind it.
What to look for in a quote
- What preparation is included
- How much experience the applicator has
- What product goes in the joint
- Is the old sealant removed completely?
Can I do it myself?
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 fails, we can still redo it.
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
Other services in Hill of Keir
Surface by surface
Window sills
Where a sill meets brick or render, the ends often crack first. We reseal them so rain cannot run into the wall.
uPVC windows
The frame is cleaned with a product that won’t harm the plastic, then the sealant goes in between frame and wall and tooled smooth.
Windows and doors in Hill of Keir
Hill of Keir is within about 3 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, often pointed into the wall with traditional sand mastic.
For an older house near a landmark such as Belhelvie North Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Hill of Keir is about 7 miles north of Aberdeen, in Aberdeen. Our applicators cover window mastic for homes and businesses in Hill of Keir, as part of our work across Aberdeen. 63 places in Aberdeen are on our list. For nearby work, see our Aberdeen page, about 7 miles away.
Work in AB23 works the same way as everywhere else we cover. If you’re just outside Hill of Keir, we cover Belhelvie (1 mile south), Balmedie (1 mile south-east), Whitecairns (2 miles west), Potterton (2 miles south) and Kingseat (3 miles west). Larger places within reach include Aberdeen (7 miles south), Rosemount (8 miles south), Berryden (7 miles south), Ferryhill (8 miles south), New Aberdeen (8 miles south) and Dyce (6 miles south-west).
Landmarks near Hill of Keir
Other landmarks nearby include Foveran Castle (4.3 miles north-east) and Kingseat Hospital (2.8 miles west). Open spaces near Hill of Keir include Corby Loch and Perwinnes Hill.
Work for landlords, hotels and businesses
Letting agents often deal with us directly. Tell us the address, the job and how access works and we’ll quote.
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together, and we are fully insured for the work.
How the visit works
Most of a good job is in the preparation, and we don’t rush it. Joints are cleaned back and dried before anything new goes in. In total, it usually takes anything from an hour or two to a full day, depending on how many frames there are. Somewhere like Hill of Keir may be a longer drive, and the journey is planned ahead. Mention tracks, gates, ferries or anything else about the route.
- First we look at every frame and agree the list.
- We remove the old mastic and clean the frame and the wall.
- Where gaps are deep, backing rod goes in first.
- A flexible, weatherproof sealant is applied in a colour to suit the frame.
- Every joint is checked before we leave.
Preparing for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Move anything stored near the joints
- Mention any leaks or damp you’ve noticed
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. You will have a clear quote before we start.
Related advice
Hill of Keir questions
Is Hill of Keir within the area you cover?
Yes. Hill of Keir is within the area we cover, which takes in towns, villages and rural addresses. We work across all of Scotland. Let us know about access, parking and anything unusual about getting there when you book.
Is window mastic in a coastal place like Hill of Keir any different?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Do the sealants smell?
That depends on the sealant. Some smell for a while, some hardly at all.
Will new mastic stop draughts?
Yes, where the draught is at the frame edge. We find where the air is coming from before we reseal.
Where are you based?
Our base is Crawley. Our area covers South East England, London and Scotland.
How long will my window job take?
A few frames take a few hours. We confirm the timing with your quote.
What should I tell you?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
Which products do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice.
What sealant work can’t fix
Before you book, it’s worth knowing the limits:
- Draughts through the window seals rather than the frame
- A sash or casement that won’t close properly
- Damp coming through the wall itself rather than the frame joint
If in doubt, send an email to info@mrmastic.co.uk and we’ll say what we think before you book.
Surfaces we seal
- Timber windows & doors
- Patio & French doors
- Composite doors
- Window sills
- uPVC windows
- Aluminium frames