Highland · Scotland
Ardvasar External Mastic
Specialist external mastic for Ardvasar: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Sealant that has lost its bond to the brick or render
- Brick movement joints where the sealant has split
- Rigid filler in a joint that should flex
Different surfaces, different methods
Copings and trims
Coping joints that leak let water straight down into the wall. Sealing them early saves the wall below.
Joints between dissimilar materials
Different materials may need different primers. We prepare both faces so the sealant bonds properly.
External mastic for homes and businesses in Ardvasar
As ARBOMaster approved applicators, we choose exterior sealants to suit the joint and the surfaces. Porous or awkward surfaces are primed where the sealant needs it and we use one wherever it does. We are often asked to deal with rain getting behind render or cladding at a joint and rigid filler in a joint that should flex, on render & cladding joints, façade panels and joints between brick and frames.
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.
Our work is backed for twelve months, in Ardvasar and everywhere else we cover.

- Location
- Ardvasar (IV45)
- Region
- Highland
- Cover
- A year, on every job
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Ardvasar buildings and the weather
Ardvasar 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. The west of Scotland is wetter than the east, so there’s plenty of rain for movement joints and outside wall joints to keep out.
Rented homes near Mallaig station change hands often, and failed wall and movement joints let damp in, so they’re worth checking between tenancies. In and around Ardvasar, as anywhere, good external mastic starts with a clean, dry, properly prepared joint.
Ardvasar (Gaelic: Àird a' Bhasair) is in Highland. Jobs in Ardvasar get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Ardvasar is one of 253 places in Highland we cover.
Jobs for external mastic in IV45 is quoted and booked the same way as anywhere else. Whether your property is on Newton Bank and Dail Conaisg or a nearby road, we can help. Other places close to Ardvasar include Armadale (1 mile north-east), Kilbeg (2 miles north-east), Mallaig (5 miles south-east), Morar (7 miles south-east) and Glenancross (7 miles south). Remote and island addresses need a little more planning, so please mention your location when you send an email to info@mrmastic.co.uk.
Landmarks near Ardvasar
The nearest railway station is Mallaig station, roughly 4.7 miles south-east of the centre. Well-known places in the area include Museum of the Isles (1 mile north) and Armadale Castle (1.1 miles north-east). Green spaces nearby include Sgùrr nan Caorach and Loch Sgurr na Caorach.
When it is not the sealant
It helps to know what we can’t do too:
- Walls that need new movement joints cut into them
- Damp that is not coming from the joint
- Cracking across the wall rather than at a joint
Not sure which it is? You can send an email to info@mrmastic.co.uk and we’ll tell you honestly before booking.
Surfaces we seal
- Copings & trims
- Concrete & block
- Brickwork movement joints
- Façade panels
- Joints between brick and frames
- Render & cladding joints
Ardvasar: your questions answered
Is external mastic in a coastal place like Ardvasar any different?
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.
Do you cover smaller places like Ardvasar?
Yes. Ardvasar is within the area we cover, which takes in towns, villages and rural addresses. We work across all of Scotland. Just mention lanes, gates or anything else about the route when you book.
What do you put in the joint?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.
Is it messy?
Tidy work is part of the job. We protect what’s around the joints.
Are you an approved applicator?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.
Do I need to be at home?
It depends on the job. Inside work needs someone to give us access.
Do you work for landlords and businesses?
Yes. We work for householders, landlords, letting agents, businesses and hotels.
Do you work for hotels and businesses?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. We can talk about working times when we quote.
How we quote for external mastic
The quote reflects the job in front of us. We look at:
- Whether there’s mould to deal with
- The type of sealant required
- How many areas need sealing
- Working hours on commercial sites
Rather than a set price list, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Asking for a quote
To make quoting easier, let us know:
- Any previous sealing or DIY work
- The address or postcode of the job
- What the problem is, such as mould, gaps, leaks or cracking
- Roughly how big the job is
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and email photos if that is easy.
For landlords and businesses
We also work for property managers and facilities teams in Ardvasar and across Highland. Several sites can go on one quote.
If you manage several properties in or around Ardvasar, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs, and photos by email help.
The process
You do not need to clear the whole room or building before we come, only the area right around the joints. We protect the rest, and the work takes a few hours for a handful of joints, longer for a whole elevation in most cases. Around Ardvasar, distance and access matter more than parking. Let us know how to find you and how to reach the joints, and the visit is planned around that.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- The old mastic and anything lodged in the joint is removed.
- Both sides are cleaned back to sound material and primed if needed.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
How to prepare
- Let us know about earlier repairs to the joints
- For business premises, tell us about site rules or sign-in
- Let us know about parking restrictions
Get a quote
For external mastic in Ardvasar, send an email to info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and you will get a clear quote before we start.
Related advice
Should I try it myself first?
If you are 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.
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
What else we do in Ardvasar
Why deal with it now?
A properly done movement joint is an even line in a colour that suits the wall. A hurried job with smeared edges and no backing looks worse and fails sooner, so it pays to do it properly once. When the nearest tradesperson is a drive away, it’s tempting to leave a small leak, but water through a failed joint keeps working away until it’s fixed.
We do not show prices on the website, because the cost depends so much on the job itself. Call for a quick quote and we will talk you through it.
What you get with us
- 20+ years of sealant experience
- Colour agreed with you before work begins
- We leave the area clean and tidy
- ARBOMaster approved applicator
Take a look at how sealant jobs are priced and what customers say.
