Highland · Scotland
External Mastic in Stoer
External mastic across Stoer and nearby, with every bit of old sealant taken out first.
- Rigid filler in a joint that should flex
- Sealant that has lost its bond to the brick or render
- Water getting into walls through failed joints
Should I try it myself first?
If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
External mastic for homes and businesses in Stoer
We cut out failed sealant, set the joint depth with closed-cell backing rod and reseal with a low-modulus exterior sealant. The colour is chosen to suit the brick or render so the line blends in. If you are dealing with cracked joints where brick meets render or frames and joints with sealant missing in places, we can help, on brickwork movement joints, copings & trims and concrete & block alike.
Outside joints can only be sealed when they’re dry, so work in Stoer depends on the weather. Tell us how to reach each wall, gutter and roofline.
Each job carries a 12-month guarantee, whatever its size.
- Where
- Stoer (IV27)
- Wider area
- Highland
- Guarantee
- 12 months on all our work
- Quote
- A clear price before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Common problems we fix in Stoer
Many joints fail because they were sealed too deep or with nothing behind them. Sealant bonded to three sides has nowhere to go and rips as the joint opens.
Most people get in touch after spotting one of these:
- Rigid filler in a joint that should flex
- Brick movement joints where the sealant has split
- Gaps where render, brick and frames meet
- Leaking joints around cladding and façade panels
In and around Stoer, as anywhere, good external mastic starts with a clean, dry, properly prepared joint.
What to look for in a quote
- How the colour is chosen
- Whether they’re fully insured
- Which sealant they’ll use, and why
- What the quote includes, VAT included or not
Why it’s worth doing now in Stoer
Pointing a movement joint with mortar might seem a neat fix, but it stops the joint moving. The wall then cracks somewhere else. A flexible sealant over backing rod is what the joint needs. When the nearest tradesperson is a drive away, it’s tempting to leave a small leak, but water behind a failed seal does the most damage when nobody’s watching.
A failed joint rarely gets cheaper to fix by waiting. If you are unsure, send an email to info@mrmastic.co.uk for an honest opinion and a quote.
Why choose Mr Mastic in Stoer
- 12-month guarantee on every job
- Colour picked to suit the job
- Over 20 years’ experience
- 4.9 on Google from 180+ five-star reviews
The process
We work through the job in order: protect, prepare, seal, tidy. Typically it takes anything from a few hours to several days, depending on the building, and the area is left clean. For a place like Stoer, longer drives are planned in advance. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- First we look over the joints with you, agree which to renew and talk through access.
- Old sealant and any debris are cut and raked out.
- 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.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Before we arrive
- Let us know about earlier repairs to the joints
- Let us know about stairs, lifts or work at height
- Mention any leaks or damp you’ve noticed
Get a quote
Call for a quick quote, or email us if that’s easier. Describe what needs sealing and we’ll explain what’s involved and send you a clear quote.
Advice
For landlords and businesses
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.
Your questions about external mastic in Stoer
Can you do external mastic in Stoer?
Yes, Stoer is within the area we cover. Our work covers the whole of Scotland. Just send an email to info@mrmastic.co.uk with a few details of the job.
Does the coastal weather in Stoer affect outside sealant?
Coastal homes put outside sealant through more weather than inland ones, so the choice of sealant and the preparation matter even more. Walls facing the sea are normally the first to need attention.
Do you hold any approvals?
Yes. We hold ARBOMaster approved applicator status, and we’re fully insured.
How long should I leave it?
Cure times vary by product and the temperature. We tell you how long to leave it before we go.
Which products do you use?
The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.
What colours does the sealant come in?
Exterior sealants are made in a range of colours, from greys and browns to whites and stone shades. We choose the closest to your brick or render.
Can tenants book the work?
Yes, though it’s best to check with your landlord first. Landlords are often happy for the work to be arranged.
Will the old sealant be removed?
Yes. Sealing over old sealant is the main reason resealing fails early, so we never do it.
What affects the quote in Stoer
Your quote is based on your job. We take into account:
- Mould in or behind the old joints
- The number and length of the joints
- How many areas need sealing
- Any working-time requirements on site
Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs, along with when we can work on site. Ask us for a quote and we’ll go through it with you.
Asking for a quote
To make quoting easier, let us know:
- Where the job is, and your postcode
- Access, such as stairs, a lift or height
- Whether it’s a home or a business
- The rough size of the job
There’s no standard price list, as no two jobs are quite the same. Instead, we give you a clear price for your job. To arrange one, send an email to info@mrmastic.co.uk.
Walls and rooflines in Stoer
Stoer 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 is hard on movement joints and outside wall joints, especially on the side facing the sea. Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and failed outside joints work against that.
Whether the job is in Stoer itself or nearby, the right material for each joint matters as much as a neat finish.
Stoer is about 38 miles east of Stornoway, in Highland. Jobs in Stoer get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. 253 places in Highland are on our list.
All of IV27 is within our area for external mastic, from the main roads to the quietest streets. If you’re just outside Stoer, we cover Stor (1 mile north-east), Lochinver (5 miles south-east), An Druim Beag (6 miles north-east), Scourie More (12 miles north-east) and Scourie (12 miles north-east). If you are somewhere remote, a little more planning is needed, so mention it when you ask for a quote.
What’s near Stoer
Not far away are Loch na Claise.
Keeping the joints in good condition
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Never let anyone fill a movement joint with mortar
- Look over the joints every year, ideally after winter
- Point out the joints to other trades
- Keep high-pressure jets off the joints
Follow the cure time we give you before the joint is knocked or disturbed. The surface skins over quickly, but full cure takes longer.
Once a joint cannot move, the wall finds another way, usually as cracking in the brickwork or render nearby. Catch it early and you reduce the risk.