Na h-Eileanan Siar · Scotland
External & façade joints in Tarbert, Na h-Eileanan Siar
Sealing brickwork movement joints, render, cladding and façade joints for householders, landlords and businesses in Tarbert. Fully insured, ARBOMaster approved and guaranteed for a year.
- Hard, crazed mastic that has stopped moving
- Failed sealant between panels on a façade
- Damp patches traced to an open external joint
What affects the cost of external mastic
Your quote is based on your job. We take into account:
- How easy the joints are to reach
- The type of sealant required
- How many rooms, windows or areas are involved
- Any working-time requirements on site
What it costs depends on how much there is to do, how much old material has to come out and access to the work. We give a clear quote before any work starts.
What we need to know
What to tell us when you ask for a quote:
- The type of property
- Where the job is, and your postcode
- Pictures of the joints, sent by email
- If someone has resealed it before
It all starts with a short chat. Describe the problem, the location and the size of the job, and we’ll talk you through what we’d do. When it suits you, email us at info@mrmastic.co.uk.
How we handle external mastic in Tarbert
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. We work on façade panels, brickwork movement joints and joints between brick and frames, and the jobs we see most are sealant that has lost its bond to the brick or render and movement joints with cracked, split or missing sealant.
External sealant needs dry surfaces, so outdoor work around Tarbert is planned around the weather. Tell us how to reach each wall, gutter and roofline.
Each job carries a 12-month guarantee.
- Location
- Tarbert (HS3)
- Wider area
- Na h-Eileanan Siar
- Guarantee
- A year, on every job
- Quotes
- A clear price before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
How the job changes by surface
Copings and trims
Coping and trim joints face rain and sun head on. Each is resealed with a weatherproof, flexible sealant.
Render joints
Render has movement joints and stop beads that need sealing. We reseal them with a flexible exterior sealant that suits the render colour.
What external mastic looks like in Tarbert
Tarbert is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on movement joints and outside wall joints, which can dry out and crack sooner where a building faces the weather. Tarbert 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.
Around Tarbert, as everywhere, external mastic is only as good as the preparation behind it.
Tarbert (Gaelic: An Tairbeart) is in Na h-Eileanan Siar. Jobs in Tarbert get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Tarbert is one of 87 places in Na h-Eileanan Siar we cover.
Here we cover the HS3 postcode area for external mastic. We cover properties on Main Street, Scott Road and Sraid Mhiccuinn. With the A868 close by, Tarbert is simple for us to get to for external mastic. Close by, we work in Direcleit (1 mile south), Miabhaig (2 miles south), Drinisiadar (3 miles south), Plocrapool (4 miles south-east) and Greosabhagh (4 miles south). Being one of Na h-Eileanan Siar’s larger places, Tarbert has every kind of property, from flats to offices. If you’re somewhere remote, a little more planning is needed, so mention it when you ask for a quote.
Local landmarks in Tarbert
Open spaces near Tarbert include Loch Laxdale and Ben Luskentyre.
Common questions in Tarbert
Is Tarbert within the area you cover?
Yes. Tarbert is within the area we cover, which takes in towns, villages and rural addresses. We work across all of Scotland, including the islands, where work is planned around ferry crossings. Let us know about access, parking and anything unusual about getting there when you book.
Is Tarbert in your area for external mastic?
Yes. We work across all of Scotland, and Tarbert is part of that. You can drop us a line at info@mrmastic.co.uk and tell us what needs doing.
Do you take out the old sealant first?
Always. Sealing over old sealant is the main reason resealing fails early, so we never do it.
Do you work for hotels and businesses?
Yes. We can plan bigger jobs in stages.
How long does external mastic take?
It depends on the size of the job, but as a guide it takes a few hours to a few days, depending on the length of joint and the access. We’ll give you a better idea when we quote.
What information do you need?
Tell us what needs doing and where, plus photos if you have them. If we need more, we will ask.
How much does external mastic cost in Tarbert?
Every job is different, so each one gets its own quote. To get one, drop us a line at info@mrmastic.co.uk with a short description of the job.
Do you use backing rod?
Backing rod controls the sealant depth and keeps it off the back of the joint. Then the sealant bonds to two faces and can move.
Why deal with it now?
An open joint keeps letting water into the wall with every downpour. Wet masonry is more easily damaged by frost near the open joint, so the damage spreads beyond the joint. 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.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.
What you get with us
- A choice of colours where the product allows
- Neat joints and a tidy finish
- More than 20 years in sealant work
- Rated 4.9 stars on Google
Read what affects the cost and customer reviews.
Do you need external mastic in Tarbert?
Every building moves. Clay bricks expand slightly over their life, concrete and block shrink, and everything moves with temperature and wet. The sealant in the movement joints takes that strain.
Keep an eye out for these signs:
- Joints where the bead has come unstuck
- Water getting into walls through failed joints
- Joints with sealant missing in places
- Moss and dirt in joints with no sealant left
For jobs in and around Tarbert, choosing the right material for each joint is as important as a tidy finish.
What to look for in a quote
- The length of the guarantee
- Whether all the old sealant comes out first
- Whether they’re fully insured
- What the quote includes, VAT included or not
DIY versus a professional finish
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Also near Tarbert
Also in Tarbert
Work for landlords, hotels and businesses
Landlords and letting agents in Tarbert can book us as well as householders. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
What happens on the day
At the end, we look at the finished work together and tell you how long to leave it. The work normally takes anything from a few hours to several days, depending on the building, depending on how much there is to do. Outdoor work around Tarbert depends on the weather, as sealant needs a dry surface, so an outdoor job can move if the forecast changes. Work indoors is not affected.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- We cut out the failed sealant and rake out any dirt or growth.
- 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.
Preparing for the visit
- Let us know if you’ve seen damp or leaks
- Tell us if parking is tricky
- Tell us about any previous sealing or DIY attempts
Getting a quote
For external mastic in Tarbert, send an email to info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and you’ll get a clear quote before work begins.