Aberdeenshire · Scotland
Ballater External Mastic
External mastic for Ballater, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Joints pointed up with cement by mistake
- Weeds or debris growing in open joints
- Hard, crazed mastic that has stopped moving
External mastic in Ballater, done properly
A movement joint is a deliberate break that lets a wall expand and contract. The sealant in it has to stretch and squeeze for years, so once it splits or hardens, the joint stops working and water gets in. We are often asked to deal with joints pointed up with cement by mistake and joints where the bead has come unstuck, on concrete & block, render & cladding joints and copings & trims.
In and around a place like Ballater, many buildings face open ground and take the full weather. Outside joints on exposed walls work hard.
Each job carries a 12-month guarantee, whatever its size.
- Location
- Ballater (AB35)
- Region
- Aberdeenshire
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Why act early in Ballater
Mortar or ordinary filler might look like a quick way to close an open joint, but it stops the joint moving. The movement then cracks the brickwork or render nearby. The correct repair is a flexible sealant with the right backing. In an older home around Ballater, damp from a failed joint can get into timber and plaster, which is a far bigger job than the sealant.
Leaving a failed joint normally makes the job bigger, not smaller, as water and mould keep getting in. If you’re not sure whether it needs doing, send an email to info@mrmastic.co.uk for an honest opinion and a quote.
Why book with us
- Full insurance on every job
- You choose the colour before work begins
- Approved under the ARBOMaster scheme
- We never seal over old sealant
See what affects the cost or our reviews.
When to call us in Ballater
Sometimes a movement joint was filled with mortar or a rigid filler. With the joint locked solid, the movement turns into cracks elsewhere in the wall.
Signs it’s time to call us include:
- Panel joints letting water in
- Rain getting behind render or cladding at a joint
- Cracked joints where brick meets render or frames
- Old sealant gone brittle and cracked
If you live in an older home near Glenmuick Parish Church, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Comparing quotes
- The length of the guarantee
- Which sealant they’ll use, and why
- What the cure time is
- What the quote includes, VAT included or not
Other services in Ballater
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 matched to the joint and its conditions, then guaranteed for a year.
If you’re 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.
What affects the quote in Ballater
Jobs vary more than people expect. What affects the quote:
- How easy the joints are to reach
- The number of rooms or windows
- When we can work, for business premises
- The old material and how stubborn it is
Doing several joints on one visit generally makes better use of the time than several visits, so tell us about everything that needs sealing. We will send you a clear quote for the lot.
Asking for a quote
Photos by email are helpful but not essential. Please mention:
- What’s wrong with the joints now
- How many joints, rooms or windows are involved
- A few photos by email, if you can
- Access, such as stairs, a lift or height
Asking for a quote is easy: let us know the job and the location. Photos by email help us understand the job, and we will come back to you with a quote.
Questions from Ballater
Is there a guarantee on external mastic in Ballater?
Every job comes with our one-year guarantee, wherever it is. We are also fully insured and ARBOMaster approved.
Is Ballater within the area you cover?
Yes. Ballater is within the area we cover, which takes in towns, villages and rural addresses. Our work covers the whole of Scotland. Let us know about access, parking and anything unusual about getting there when you book.
What do you need from me for a quote?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
Can tenants book the work?
Of course. Ask your landlord first, and we can send them the quote if that helps.
Can you seal joints between two different materials?
Yes. We cut out the old sealant, prepare both faces and reseal with a flexible exterior product. We pick a colour that works with both materials.
Does someone need to be in?
It depends on the job. Inside work needs someone to give us access.
Will there be a smell?
It depends on the product. Some smell for a while, some hardly at all, and any smell fades as they cure.
How often do external joints need resealing?
It depends on the exposure, the movement and the product. Sealant is a maintenance item, so check the joints once a year.
How the job changes by surface
Concrete and blockwork
Wide joints in concrete need the depth controlling carefully. We size the backing rod to the gap.
Joints between dissimilar materials
Wherever two materials meet, they move differently. A flexible sealant bridges the two.
How to look after the new joints
No joint lasts for ever, but care makes a real difference. Our tips:
- Avoid pressure-washing directly into sealant joints
- Tell anyone working on the walls about the movement joints
- Check external joints each spring
- Clear growth from the base of walls and joints
Give the sealant the cure time we tell you before anything rubs against it. Most exterior sealants skin fast but take longer to cure right through.
Once a joint cannot move, the wall finds another way, generally as cracking in the brickwork or render nearby. Catch it early and you reduce the risk.
Outside joints around Ballater
Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and failed outside joints work against that. Plenty of Scottish homes have harled walls, and where harling meets frames, pipes and other materials, the joint needs a flexible sealant that grips a rough surface.
In and around Ballater, as anywhere, good external mastic starts with a clean, dry, properly prepared joint.
Ballater is about 29 miles north of Forfar, in Aberdeenshire. Jobs in Ballater get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Ballater is one of 161 places in Aberdeenshire we cover. For nearby work, see our Aberdeen page.
All of AB35 is covered for external mastic, from the main roads to the quietest streets. You will find streets such as Station Square, Bridge Square and Netherley Place, and we cover them all. Ballater is on the A93, so it’s easy for us to get to. Close by, we work in Dinnet (6 miles east), Tarland (9 miles north-east), Aboyne (10 miles east), Birsemore (10 miles east) and Towie (11 miles north).
Landmarks near Ballater
Other landmarks nearby include Abergairn Castle (1.2 miles north-west). For a walk, there’s Loch Kinord and Culblean Hill.
How it works
On the day, there’s very little for you to do. Show us the job and we’ll take it from there. The work itself takes a few hours to a few days, depending on the length of joint and the access, including the tidy-up. In smaller Scottish places, parking is normally less of an issue than access and distance. Let us know how to find you and how to reach the joints.
- We start by checking each joint, agreeing the ones to redo and how we’ll reach them.
- The old mastic and anything lodged in the joint is removed.
- The joint faces are cleaned and primed where the sealant needs it.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
Getting ready for the visit
- Let us know about earlier repairs to the joints
- Plan for the work area to be out of bounds to pets and children
- Clear the area around the work
Get a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is. Whenever you’re ready, drop us a line at info@mrmastic.co.uk.