Aberdeenshire · Scotland
Window & door mastic in Balfour, Aberdeenshire
Window mastic for Balfour, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Sealant in the wrong colour for the frame
- Leaking joints at the ends of sills
- Draughty joints inside around the window
Landlord and commercial work in Balfour
In hotels, rooms out of use cost money, 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. For commercial premises, we can talk through working times when we quote.
About our window mastic in Balfour
Behind a thin line of old mastic there’s sometimes a deep void. Filling it with sealant alone leaves a joint that can’t move properly, so we fit backing rod to set the right depth. The sealant then grips the two sides it should. If you have sealant in the wrong colour for the frame and gaps between the frame and the inside reveal, we can help.
Across smaller places in Scotland, homes range from stone and harled cottages to newer houses, many standing in the open. Wind-driven rain finds any gap around a frame or sill, so the mastic there works hard.
A one-year guarantee comes as standard, so you’re covered after we have gone.

- Where
- Balfour (AB31)
- Region
- Aberdeenshire
- Cover
- A year, on every job
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Looking after it afterwards
Once the sealant has cured, a few habits help it last:
- Ventilate rooms so frames don’t stay wet inside
- Keep jet washers away from the mastic
- Look round the frames every year or so
- Make sure the drainage slots aren’t blocked
A yearly look round the frames is enough. Cracks and lifting edges are easy to spot early.
Water trapped behind a failed joint can start rot in timber frames and sills. Rotten timber needs a joiner, not a sealant, so it pays to reseal before that happens.
Different surfaces, different methods
Composite doors
Draughts round the door leaf generally come from worn seals or adjustment, not the mastic. We will tell you if that is what we find.
Patio & French doors
Not every patio door leak is a mastic problem: worn seals, blocked drainage slots or a poor threshold detail can be the cause. We check before we reseal.
Leave it or put it right?
The work is quick compared with the damage it prevents: it takes anything from an hour or two to a full day, depending on how many frames there are. Wait for damp to appear and there may be plaster and decorating to sort out too. In an older home around Balfour, damp from a failed joint can get into timber and plaster.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.
What you get with us
- Anti-fungal silicone where joints get wet
- We agree the colour with you first
- 180+ five-star Google reviews
- A sealant colour to suit the surroundings
The process
When we get to you, we check the joints match what you told us. If anything is different, we explain it before carrying on. Most jobs then take a few hours for a handful of frames, longer for a whole house. Outdoor work around Balfour depends on the weather, as sealant needs a dry surface, so external jobs may need to move if the day turns wet. Work indoors isn’t affected.
- 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.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- Finally we tidy up and check each joint.
Before we arrive
- Mention any tricky access
- Mention any sign-in or site rules at work premises
- Try not to wet indoor joints just before the visit
Get a quote
Asking for a quote is easy: let us know what needs doing and where, and roughly how big it is. Photos by email help us understand the job, and we’ll take it from there.
Advice
Balfour homes and the weather
Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and sound outside sealant is part of that. 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.
If you live in an older home near St Comgall's Church, the joint between an old wall and a newer frame is usually the first place rain gets in.
Balfour is about 5 miles east of Banchory, in Aberdeenshire. For window mastic in and around Balfour, it’s easy to get a quote: please drop us a line at info@mrmastic.co.uk. We cover Aberdeenshire from our Crawley base, Balfour included. Our Aberdeenshire coverage runs to 161 places, Balfour among them. Aberdeen is on our list too, about 11 miles from Balfour.
Postcode districts we cover here for window mastic: AB31. Other places close to Balfour include Woodlands (1 mile south-east), Kirkton of Durris (1 mile west), Drumoak (2 miles north), Crathes (2 miles west) and Crossroads (3 miles south-west). Larger places within reach include Westhill (7 miles north), Stonehaven (8 miles south-east), Banchory (5 miles west), Kemnay (13 miles north), Kintore (12 miles north) and Newtonhill (8 miles east).
Landmarks near Balfour
A little further out are Crathes Castle (3.2 miles west) and Durris Castle (within half a mile north-west). For a walk, there’s Meikle Carewe Hill.
Common questions in Balfour
Is Balfour within the area you cover?
Yes, we do. We work across all of Scotland, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Is Balfour in your area for window mastic?
Yes, Balfour is within the area we cover. Our work covers the whole of Scotland. You can send an email to info@mrmastic.co.uk and tell us what needs doing.
Is it worth trying it myself?
Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Do you seal inside as well as outside?
Yes. Plenty of draughts come through the inside joint as well as the outside, so sealing both is often worthwhile.
Will resealing my frames help with draughts?
If the draught is coming in around the frame, yes. If it’s through the window’s own seals or a hinge, that’s a different fix, and we’ll say so.
Can I paint over the new sealant?
That depends on the product. Some hybrid sealants can be painted; silicone cannot. Mention any painting plans before we start.
Which products do you use?
It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. We use products from Arbo and Everbuild.
Do you do commercial work?
Yes. We can plan bigger jobs in stages.
Towns and villages near Balfour
Other services in Balfour
Common problems we fix in Balfour
Older frames were often sealed with products that set hard. Once it has hardened, the frame’s movement tears it from the wall, leaving a hairline gap down one side.
The problems people usually mention when they call are:
- Old mastic that has gone black or come away
- Draughty joints inside around the window
- Cracked or shrunken mastic around the frame
- Leaking joints at the ends of sills
In and around Balfour, as anywhere, good window mastic starts with a clean, dry, properly prepared joint.
What to look for in a quote
- What preparation is included
- Whether the sealant suits the joint
- How the colour is chosen
- Whether they seal over old material or remove it
What affects the cost of window mastic
Your quote is based on your job. We take into account:
- Any working-time requirements on site
- Any mould that needs treating
- Whether old sealant or filler has to be cut out
- The number and length of the joints
Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
Helping us quote
There’s no need for technical detail. Just tell us:
- A few photos by email, if you can
- Access, such as stairs, a lift or height
- Whether it has been sealed before
- How many joints, rooms or windows are involved
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we will talk you through the work.
