Highland · Scotland
External & façade joints in Colbost, Highland
External mastic for Colbost, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Plants rooting in failed movement joints
- Failed seals between different materials
- Hard, crazed mastic that has stopped moving
External mastic for homes and businesses in Colbost
We are ARBOMaster approved applicators, and each external joint gets a sealant suited to it. Porous or awkward surfaces are primed where the sealant needs it and we use one wherever it does. If you have gaps where render, brick and frames meet and joints pointed up with cement by mistake, we can help, on façade panels, joints between brick and frames and copings & trims alike.
Stone walls need a stone-friendly sealant, as acetoxy products can attack some stone. Newer houses need their movement joints and roofline trims kept sound.
You’re covered for a year from the day we finish. If anything is not right with it, drop us a line at info@mrmastic.co.uk.
- Where
- Colbost (IV55)
- Wider area
- Highland
- Cover
- 12 months on all our work
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
What affects the cost of external mastic
We do not publish a price list, because no two jobs are the same. What we look at:
- The size of the job
- Which sealant suits the joint
- How many rooms, windows or areas are involved
- Working hours on commercial sites
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote.
What we need to know
Photos help, but a description is a good start. Try to tell us:
- How many joints, rooms or windows are involved
- Where the property is
- Any access issues, like height or stairs
- If someone has resealed it before
We quote each job on its own. Simply drop us a line at info@mrmastic.co.uk and describe the job and send photos if you have them.
Walls and rooflines in Colbost
Colbost is within about 1 mile of 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. Colbost is in the west of Scotland, which is wetter than the east, so there’s plenty of rain for movement joints and outside wall joints to keep out.
In and around Colbost, as anywhere, good external mastic starts with a clean, dry, properly prepared joint.
Colbost (Gaelic: Cealabost) is in Highland. Colbost gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. We cover 253 towns and villages across Highland.
Every address in IV55 is covered for external mastic. With the B884 close by, Colbost is simple for us to get to for external mastic. Other places close to Colbost include Kilmuir (2 miles east), Dunvegan (3 miles east), Lonmore (3 miles east), An t-Aodann Ban (8 miles east) and Clachamish (11 miles east). If you’re somewhere remote, the job takes a little more planning.
Landmarks near Colbost
Other landmarks nearby include Dunvegan Castle (1.9 miles east) and Colbost Croft Museum (less than half a mile north-west). Not far away are Healabhal Mhòr and Loch Druim a' Chaoil.
How the job changes by surface
Brickwork movement joints
Brick movement joints are often mistaken for a missing mortar line. If that’s happened, we rake it out and reseal it properly.
Joints between dissimilar materials
Where a frame or panel meets masonry, water often finds a way in. We cut out the old sealant and reseal with a product suited to both surfaces.
What happens on the day
You don’t need to clear the whole room or building, only the area right around the joints. We protect the rest, and the job takes a few hours for a handful of joints, longer for a whole elevation in most cases. Outdoor work around Colbost depends on the weather, as sealant needs a dry surface, so an outdoor job can move if the forecast changes. Work indoors isn’t affected.
- We start by checking each joint, agreeing the ones to redo and how we will reach them.
- We cut out the failed sealant and rake out any dirt or growth.
- The joint faces are cleaned and primed where the sealant needs it.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
Preparing for the visit
- Where the joints are inside, avoid wetting them before we arrive
- Plan for the work area to be out of bounds to pets and children
- Tell us about any water getting in
Getting a quote
We don’t publish a price list, because every job is different. Instead, we send you a clear quote for your job. To get started, drop us a line at info@mrmastic.co.uk.
Related advice
Do you need external mastic in Colbost?
Joints sealed without backing rod, or far too deep, rarely last. If the sealant sticks to the back as well as the sides, it can’t stretch and rips as the joint opens.
Any of these means the joints need attention:
- Damp patches traced to an open external joint
- Hard, crazed mastic that has stopped moving
- Weeds or debris growing in open joints
- Cracked joints where brick meets render or frames
Whether the job is in Colbost itself or nearby, the right material for each joint matters as much as a neat finish.
Before you book anyone
- Whether they’re fully insured
- Is VAT in the price?
- Whether you can choose the colour
- When the joint can take water or movement
Why deal with it now?
Done well, a resealed joint is a neat, straight line that suits the wall. A hurried job with smeared edges and no backing looks worse and fails sooner so it’s worth doing right. Around Colbost, water from a failed joint in an older stone home can soak into timber and plaster.
Combining jobs into one visit is generally more efficient than separate visits, so tell us about everything that needs sealing. We’ll give you a clear quote for the lot.
Why us?
- Colour agreed with you before we start
- Every job guaranteed for a year
- Quality sealants from Arbo and Everbuild
- We never seal over old sealant
Also near Colbost
Also in Colbost
What we cannot put right
To be straight with you, some problems need a different trade:
- Cracked brickwork or render that needs a builder or plasterer
- Adding movement joints to masonry that has none
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
Not sure which it is? You can email us at info@mrmastic.co.uk and we will tell you honestly.
Surfaces we seal
- Façade panels
- Joints between brick and frames
- Copings & trims
- Render & cladding joints
- Concrete & block
- Brickwork movement joints
Landlord and commercial work in Colbost
Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.
Colbost questions
Does the coastal weather in Colbost affect outside sealant?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Is Colbost within the area you cover?
Yes, we do. Our work covers the whole of Scotland, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Can you do several jobs on one visit?
Yes. Tell us about everything you’d like done and you’ll get one quote.
Can new sealant go over the old?
No. Fresh sealant doesn’t stick to old sealant, and anything trapped underneath, including mould and water, stays there. We remove it all first.
Do the sealants smell?
That depends on the sealant. Some products have a noticeable smell, others very little, and any smell fades as they cure.
Should I try DIY first?
Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.
Is the work guaranteed?
Yes. Every job comes with a one-year guarantee.
Can you seal joints between render and window frames?
Yes. Joints between dissimilar materials are a big part of external work. The sealant is chosen to bond to both sides, primed where needed.