Aberdeenshire · Scotland
Window & door mastic in St Katherines, Aberdeenshire
We cover St Katherines for mastic around window and door frames, sills and patio doors. Old sealant removed completely, joints prepared properly and a 12-month guarantee.
- Black, perished sealant on frames
- Draughts coming in around windows and doors
- A bead that doesn’t match the frame
Quotes for window mastic in St Katherines
We quote each job individually. These are the things that affect it:
- Access and height
- Any mould that needs treating
- The old material and how stubborn it is
- When we can work, for business premises
Leaving a failed joint usually makes the job bigger, not smaller, as water and mould keep getting in. If you’re unsure, email us at info@mrmastic.co.uk for an honest opinion and a quote.
What we need to know
There’s no need for technical detail. It helps if you can tell us:
- Roughly how big the job is
- The address or postcode of the job
- Whether it’s a home or a business
- The problem you’ve noticed
Need a quote? Please email us at info@mrmastic.co.uk with a few details. We will explain what we’d do and send you a clear quote before any work starts.
How we handle window mastic in St Katherines
Most frames have an outside joint and an inside one. Outside, the mastic keeps rain out; inside, the joint between frame and plaster stops draughts and tidies the reveal. Either or both can be done. Common call-outs are for mastic that has split away from the wall and a bead that doesn’t match the frame, across timber windows & doors, window sills and aluminium frames.
Older stone-built homes in Scotland often have sash and case or timber windows set in stone. The sealant has to suit the stone, which rules out acetoxy silicones that can mark or attack it.
Big or small, it’s backed by our one-year guarantee in St Katherines and across Aberdeenshire.
- Location
- St Katherines (AB51)
- Wider area
- Aberdeenshire
- Cover
- 12 months on all our work
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
St Katherines homes and the weather
Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and failed outside joints work against that. Sash and case windows are common in older Scottish homes, often pointed into the wall with traditional sand mastic.
Around St Katherines, as everywhere, window mastic is only as good as the preparation behind it.
St Katherines is about 8 miles north of Inverurie, in Aberdeenshire. Every kind of property in St Katherines can book us for window mastic, old or new, large or small. Every job comes with our 12-month guarantee. Our Aberdeenshire coverage runs to 161 places, St Katherines among them. We also work in Aberdeen, about 19 miles from St Katherines.
Jobs for window mastic in AB51 is quoted and booked the same way as anywhere else. Other places close to St Katherines include Fyvie (2 miles north-west), Rothienorman (4 miles west), Meikle Wartle (4 miles south-west), Daviot (5 miles south-west) and Oldmeldrum (5 miles south). Larger places within reach include Inverurie (8 miles south), Ellon (11 miles east), Turriff (10 miles north), Garioch (8 miles south), Kemnay (12 miles south) and Kintore (11 miles south). If you are somewhere remote, a little more planning is needed, so mention it when you ask for a quote.
Around St Katherines
A little further out are Mounie Castle (3.7 miles south) and House Of Daviot Hospital (4.4 miles south-west).
Nearby places to St Katherines
What else we do in St Katherines
Questions from St Katherines
Is there a guarantee on window mastic in St Katherines?
Every job comes with our one-year guarantee, wherever it is. We are fully insured, and an ARBOMaster approved applicator.
Can you do window mastic in St Katherines?
Yes, St Katherines is within the area we cover. We work across all of Scotland. You can send an email to info@mrmastic.co.uk and tell us what needs doing.
Is it messy?
Not at all. The area is protected while we work and cleaned up afterwards.
Where is Mr Mastic based?
Our base is Crawley, with over 20 years’ experience. Our area covers South East England, London and Scotland.
What sealant do you use?
The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
Can new sealant go over the old?
No. New silicone won’t bond to old silicone, and it traps any mould or water underneath. We remove it all first.
Do I need to be at home?
It depends on the job. For work indoors, someone needs to let us in.
What do you need from me for a quote?
Tell us what needs doing and where, plus pictures if you have them. We’ll ask anything else we need to know.
Looking after it afterwards
Good habits help new joints last longer. A few tips:
- Look round the frames every year or so
- Avoid blasting the frames with a pressure washer
- Keep timber frames painted
- Avoid harsh chemicals near the mastic
Silicone cannot generally be painted, so if you’re planning to paint the frames or walls, tell us beforehand. There are paintable sealants for joints that need it.
Wet, windy weather is when failed mastic shows itself, but sealant goes on best when frames and walls are dry. Sorting cracked mastic early means the joint is sound before the bad weather.
How it 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. All told, the work takes a few hours for a handful of frames, longer for a whole house. In smaller Scottish places, parking is usually less of an issue than access and distance. Tell us how to find the property and how to reach the work.
- We check how each frame can be reached safely.
- Old, cracked mastic is removed completely.
- The surfaces are cleaned and left dry, 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.
Preparing for the visit
- Tell us if parking is tricky
- For indoor joints, keep the area dry beforehand if you can
- Let us know about stairs, lifts or work at height
Get a quote
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we’ll talk you through the work before giving you a price.
Related advice
Honest limits
Honest advice matters more to us than a booking, so here’s what new sealant won’t do:
- Rotten timber, which needs a joiner first
- Worn gaskets, brush seals or a door that has dropped
- Misting between the panes of a double-glazed unit (that needs a new unit)
If you are not sure, just drop us a line at info@mrmastic.co.uk and we’ll give you a straight answer before you book.
Joints and surfaces we work on
- Timber windows & doors
- Patio & French doors
- Composite doors
- Window sills
- Aluminium frames
- uPVC windows
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.
Aluminium frames
Aluminium needs a sealant that bonds to coated metal. Neutral-cure sealant is the safe choice.
Why deal with it now?
Draughts and leaks do not always mean new windows. If the frames and glass are in good order, resealing the joints is often all that’s needed. Problems with the glass or gaskets are for a window company, and we’ll say so. In an older home around St Katherines, damp from a failed joint can get into timber and plaster.
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please send an email to info@mrmastic.co.uk.
Why us?
- ARBOMaster approved applicator
- White, clear, grey or another colour, product permitting
- Arbo and Everbuild products
- Tidy, careful work
Read how sealant jobs are priced and customer reviews.
Common problems we fix in St Katherines
Mastic ages in the weather. UV light hardens the outside of the bead, until it loses its stretch and starts to crack.
People usually contact us after spotting one of these:
- Gaps left after new windows were fitted
- Gaps between the frame and the inside reveal
- Cracked sealant at the sill ends
- Mastic that is falling out in pieces
Whether the job is in St Katherines itself or nearby, the right material for each joint matters as much as a neat finish.
Questions to ask before booking
- What happens if the job turns out different
- Are they insured?
- Whether you can choose the colour
- What preparation is included