Aberdeenshire · Scotland
External & façade joints in Collieston, Aberdeenshire
External mastic across Collieston and nearby, with every bit of old sealant taken out first and a 12-month guarantee.
- Joints with sealant missing in places
- Failed seals between different materials
- Weathered mastic that no longer stretches
When something else is needed
A few problems are outside what sealant work can do:
- Cutting new joints into brickwork, which is building work rather than sealant work
- Movement that’s more than a sealant joint can take
- Loose or hollow render, which needs re-rendering
Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we will tell you honestly.
What we seal
- Joints between brick and frames
- Façade panels
- Concrete & block
- Brickwork movement joints
- Copings & trims
- Render & cladding joints
About our external mastic in Collieston
Failed sealant is cut out, the depth set with closed-cell backing rod, and the joint resealed with a low-modulus sealant made for outside. We pick a colour that sits well with the wall so the line blends in. Common call-outs are for sealant that has lost its bond to the brick or render and moss and dirt in joints with no sealant left, on joints between brick and frames, render & cladding joints and concrete & block.
Outside joints can only be sealed when they’re dry, so work in Collieston depends on the weather, and longer journeys are planned in advance. Tell us how to reach each wall, gutter and roofline.
Your job is guaranteed for a year, as with all our work.

- Location
- Collieston (AB41)
- Wider area
- Aberdeenshire
- Cover
- One year on every job
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Quotes for external mastic in Collieston
There’s no set price list, because no two jobs are the same. The quote depends on:
- Access and height
- How much old sealant there is and how hard it is to remove
- Working hours on commercial sites
- Any mould that needs treating
The cost depends on the size of the job, how much old material has to come out and access to the work. You will have a clear quote before any work starts.
What we need to know
To make quoting easier, let us know:
- Photos by email, if that is easy
- The rough size of the job
- Access, such as stairs, a lift or height
- The type of property
Want a quote for external mastic? Please send an email to info@mrmastic.co.uk with a few details. You will know what we plan to do, and what it will cost, before any work begins.
What we do, step by step
You don’t need to clear the whole room or building before we come, just the space around the work. We protect the rest, and the work takes a few hours to a few days, depending on the length of joint and the access in most cases. For a place like Collieston, longer drives are planned in advance. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- We look at every joint and agree a colour to suit the wall.
- We take out the old sealant until the faces are sound.
- Backing rod goes in so the sealant can stretch between the two faces.
- We prime the faces where required.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Before we arrive
- Mention any sign-in or site rules at work premises
- Mention any leaks or damp you’ve noticed
- Clear items away from the joints we’re working on
Ask for a quote
Getting a quote is simple: let us know the job and the location and its rough size. Photos by email help us understand the job, and we will come back to you with a quote.
Related advice
Landlords, agents and businesses in Collieston
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
If you manage several properties in or around Collieston, several properties can be quoted together. Just tell us the addresses and what each one needs.
Also near Collieston
More services for Collieston
Signs you need external mastic in Collieston
Using the wrong sealant is another common reason. A stiff, general-purpose sealant can’t cope with a joint that moves a lot, and it tears off the sides.
People generally contact us after spotting something like this:
- Sealant that has lost its bond to the brick or render
- Weathered mastic that no longer stretches
- Gaps where render, brick and frames meet
- Rigid filler in a joint that should flex
Around Collieston, as everywhere, external mastic is only as good as the preparation behind it.
What your quote should include
- Whether you can choose the colour
- How the joint is cleaned and prepared
- When the joint can take water or movement
- The length of the guarantee
How to look after the new joints
A little care helps the new joints last. Our advice:
- Don’t let climbing plants root in the sealant
- Walk round the building once a year and look at the joints
- Act on the first splits you see
- Make sure movement joints are not pointed over
Keep the joints clear of soil, plants and climbing growth. Damp material against the sealant shortens its life.
Leaks behind façade panels and render often go unseen. When it finally shows inside, the joint may have been open for years so early resealing is worth it.
DIY sealant or a professional job?
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
Questions from Collieston
Will you come out to Collieston?
Yes, Collieston is covered. We work across all of Scotland, from towns to the smallest places. Longer journeys are simply planned in advance.
Does the coastal weather in Collieston affect outside sealant?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Is the work guaranteed?
Yes, always. There’s a 12-month guarantee on every job, large or small.
Will the old sealant be removed?
Yes. All of the old material is cut out and the joint cleaned.
When is the sealant fully cured?
Most sealants are touch-dry well before they’re fully cured. We will give you the cure time for the product we used before we leave.
Can landlords and businesses book you?
Yes, we do. We work in homes, commercial premises and hotels.
Can I do it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Which products do you use?
We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference, and we will explain our choice.
Collieston buildings and the weather
Collieston is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That’s hard on movement joints and outside wall joints, especially on the side facing the sea. Plenty of Scottish homes have harled walls, and joints where harling meets other materials need a sealant that can grip and flex.
For an older house near a landmark such as Parish Church of Slains, an extension built onto an older house moves differently, and the joint between them takes the strain.
Collieston is about 12 miles south-west of Peterhead, in Aberdeenshire. Our applicators cover external mastic for homes and businesses in Collieston, as part of our work across Aberdeenshire. Collieston is one of 161 places in Aberdeenshire we cover for external mastic. For nearby work, see our Aberdeen page (15 miles or so).
We work across the AB41 postcode area for external mastic and the streets around it. With the B9003 close by, Collieston is simple for us to get to for external mastic. Other places close to Collieston include Newburgh (3 miles south-west), Hatton (5 miles north), Ellon (5 miles west), Foveran (5 miles south-west) and Cruden Bay (5 miles north-east). Further out, we also cover Peterhead (12 miles north-east), Roanheads (12 miles north-east), Clerkhill (12 miles north-east), Port Henry (12 miles north-east), Oldmeldrum (14 miles west) and Mintlaw (12 miles north).
Around Collieston
Other landmarks nearby include Foveran Castle (4.2 miles south-west). Open spaces near Collieston include Cotehill Loch.
