Aberdeen · Scotland
Sand mastic for sash & case windows in Charlestown, Aberdeen
Sand mastic across Charlestown and nearby, with old sealant always removed completely and a 12-month guarantee.
- Open joints round the window box
- Failed mastic on an exposed elevation
- Mastic dropping out of the joint
Sand mastic in Charlestown
Silicone on a period window often looks wrong and doesn’t suit the building. Sand mastic gives a finish that matches the age of the house, and we can replace one with the other. We work on stone surrounds, timber door frames and brick reveals, and people most often call us about draughty sash windows at the surround and gaps between timber frames and stone or brick.
Mastic can only go onto a dry joint, so outside work in Charlestown depends on the weather, and longer journeys are planned in advance. Tell us about access to all the windows and doors, upstairs included.
You are covered for a year from the day we finish. If anything isn’t right with it, email us at info@mrmastic.co.uk.
- Where
- Charlestown (AB12)
- Region
- Aberdeen
- Cover
- 12 months on all our work
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Frames and glazing around Charlestown
Charlestown is close to 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 older windows and doors, especially on the side facing the sea. Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and failed outside joints work against that.
Schools such as Lochside Academy are buildings too, and the mastic around its windows and doors needs looking after like any other building’s. For an older house near a landmark such as St Mary's Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. If you let a flat or house near Portlethen station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
Charlestown is about 4 miles south of Aberdeen, in Aberdeen. For sand mastic in and around Charlestown, it’s easy to get a quote: please email us at info@mrmastic.co.uk. We cover Aberdeen from our Crawley base. We cover 63 towns and villages across Aberdeen, from the larger towns to small villages.
Here we cover the AB12 postcode area for sand mastic. If you are just outside Charlestown, we cover Kincorth (1 mile north), Garthdee (2 miles north-west), Kaimhill (2 miles north), Banchory-Devenick (2 miles north-west) and Broomhill (2 miles north). Further out, we also cover Aberdeen (4 miles north), Rosemount (3 miles north), Berryden (4 miles north), Ferryhill (3 miles north), New Aberdeen (3 miles north) and Dyce (8 miles north-west).
Landmarks near Charlestown
Charlestown’s nearest station is Portlethen station, roughly 2.7 miles south. Other landmarks nearby include Gordon Highlanders Museum (2.9 miles north-west) and Aberdeen Trades Hospitals (3.3 miles north). Green spaces nearby include Blue Hill and Portlethen Moss.
How it works
There is not much for you to do on the day. Show us the job and we will take it from there. The job generally takes a few hours for a single window, longer for several from start to finish. For a place like Charlestown, longer drives are planned in advance. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- We fill deep gaps so the new mastic isn’t too thick.
- We point the joint with sand mastic by hand.
- The finish is dressed neatly.
Before we arrive
- Clear the area around the work
- Try not to wet indoor joints just before the visit
- Tell us about any water getting in
How to get a quote
Call for a quick quote, or email us if that is easier. Tell us about the joints that need doing and we will explain what’s involved and give you a clear price.
Related advice
Why it’s worth doing now in Charlestown
A silicone bead can be quicker, but it can look wrong on a period surround. Sand mastic is the traditional material and blends with the stone or brick. In an older home around Charlestown, damp from a failed joint can get into timber and plaster.
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all play a part, and we’ll explain the quote if you ask.
Why choose Mr Mastic in Charlestown
- Any old sealant cut out fully, not covered over
- ARBOMaster approved applicator
- A 12-month guarantee on all work
- 4.9 on Google from 180+ five-star reviews
Take a look at how sealant jobs are priced or our reviews.
What we can’t put right
Before you book, it’s worth knowing the limits too:
- Planning or listed building consent (your local planning authority decides)
- Broken panes
- Rotten sashes, sills or window boxes (a joiner’s job)
Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we will tell you honestly.
Where we work in Charlestown
- Period & listed homes
- Stone surrounds
- Tenement windows
- Brick reveals
- Timber door frames
- Sash and case windows
Questions from Charlestown
I let a flat near Portlethen station. Can you help?
Yes, rental work is part of what we do. Just email us at info@mrmastic.co.uk and tell us about the property, and we will give you a clear price.
Is Charlestown within the area you cover?
Yes, Charlestown 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.
Can new sealant go over the old?
No. We remove every bit of old sealant first, so the new sealant bonds properly.
Can you do several jobs on one visit?
Yes. More than one area can go on one quote.
Do you guarantee sand mastic work?
There’s a 12-month guarantee on every job.
Do you take out the old sealant first?
Yes, every time. New sealant will not bond properly to old, so any old material comes out before anything new goes in.
How much does sand mastic cost in Charlestown?
It depends on the job, so we quote each one individually. To get one, email us at info@mrmastic.co.uk and let us know what needs doing and where.
Is sand mastic better than silicone for my windows?
That depends on your windows. On many period windows, sand mastic looks right and suits the building, while modern frames normally get a flexible sealant.
Also in Charlestown
Quotes for sand mastic in Charlestown
Every job gets its own quote. This is what makes a difference:
- Whether old sealant or filler has to be cut out
- Any working-time requirements on site
- The type of sealant required
- The number and length of the joints
The cost depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before we start, so you know where you stand.
What we need to know
To make quoting easier, please include:
- Photos by email, if that is easy
- The type of property
- How we’d reach the joints
- If someone has resealed it before
It all starts with a short chat. Describe the problem, the location and the size of the job, and we will talk you through what we’d do. When it suits you, email us at info@mrmastic.co.uk.
DIY sealant or a professional job?
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
Landlord and commercial work in Charlestown
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
If you manage several properties in or around Charlestown, jobs at different addresses can go on one quote. Send us the addresses and the work at each.
Looking after it afterwards
Good habits help new joints last longer. Our tips:
- Inspect the joints round the windows every year or so
- Ask us before painting near the mastic
- Get any rot dealt with first
- Clear gutters so water doesn’t pour onto the windows
Keep gutters and sills clear so water runs away from the surround. Water sitting against the mastic shortens its life.
Good mastic helps keep the frame dry. Once it fails, water can sit against the timber and timber that stays wet can rot.