Na h-Eileanan Siar · Scotland
Tong External Mastic
Sealing brickwork movement joints, render, cladding and façade joints for householders, landlords and businesses in Tong. Fully insured, ARBOMaster approved and guaranteed for a year.
- Damp patches traced to an open external joint
- Weathered mastic that no longer stretches
- Cracked joints where brick meets render or frames
How we handle external mastic in Tong
Where two different materials meet, such as brick and render or blockwork and metal, they move at different rates. A flexible sealant bridges the two. If you’re dealing with joints where the bead has come unstuck and rain getting behind render or cladding at a joint, we can put it right, whatever the surface.
Outside joints can only be sealed when they’re dry, so work in Tong depends on the weather, and longer journeys are planned in advance. Let us know about access to every wall and roofline.
Whatever the size of the job, it’s backed by our 12-month guarantee.
- Where
- Tong (HS2)
- Wider area
- Na h-Eileanan Siar
- Cover
- A year, on every job
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Signs you need external mastic in Tong
Joints sealed without backing rod, or far too deep, rarely last. If the sealant sticks to the back as well as the sides, it cannot stretch and tears as soon as the joint widens.
The problems people generally mention when they call include:
- Failed sealant between panels on a façade
- Movement joints filled with mortar instead of sealant
- Gaps where render, brick and frames meet
- Weeds or debris growing in open joints
For jobs in and around Tong, choosing the right material for each joint is as important as a tidy finish.
Questions to ask before booking
- How long to leave it before use
- What happens if the job turns out different
- Is VAT in the price?
- Whether they’re fully insured
What external mastic looks like in Tong
Tong is within about 1 mile of 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. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that.
Around Tong, as everywhere, external mastic is only as good as the preparation behind it.
Tong (Gaelic: Tunga) is in Na h-Eileanan Siar. Wherever you are in the HS2 postcode area, we can carry out external mastic at your property. We cover 87 towns and villages across Na h-Eileanan Siar.
Work in HS2 works the same way as everywhere else we cover. Whether your property is on Milkinghill Park and Barraid Mhicille Mhoire or a nearby road, our applicators can take on the job. Neighbouring places we cover for external mastic include Aird Tong (1 mile east), Upper Coll (1 mile north-east), Newmarket (2 miles south-west), Steinis (2 miles south) and Laxdale (2 miles south-west). Remote and island addresses need a little more planning, so please mention your location when you send an email to info@mrmastic.co.uk.
Local landmarks in Tong
Nearby you’ll also find Lewis Loom Centre (2.9 miles south-west) and Western Isles Hospital (2.3 miles south-west). The countryside around Tong includes Loch Àirigh na Lic.
Questions from Tong
Is external mastic in a coastal place like Tong any different?
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.
Do you cover Tong for external mastic?
Yes. Our work covers the whole of Scotland, and Tong is part of that. Just send an email to info@mrmastic.co.uk with a few details of the job.
How do I get a quote for external mastic in Tong?
Size, access and the old material all affect the cost. Call for a quick quote.
What should I tell you?
Only a few details: the address or postcode, what’s wrong and any access issues. After that, simply drop us a line at info@mrmastic.co.uk.
Should I point up the gap in my brickwork?
No, not if it’s a movement joint. Pointing it stops it working and can lead to cracking. We’ll reseal it with a flexible sealant.
Can you seal joints between render and window frames?
Yes. Materials like render, brick, metal and uPVC all move differently, so the joint between them must be flexible. The sealant is matched to both sides.
Will you leave a mess?
Very little: the area around the joints is protected first, and we tidy up before we go.
Does someone need to be in?
Access is agreed with you when the job is booked. Indoors, that usually means someone at home.
What affects the quote in Tong
We quote each job individually. This is what makes a difference:
- How easy the joints are to reach
- Which sealant suits the joint
- Any working-time requirements on site
- How many areas need sealing
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all play a part.
What to tell us for a quote
What to tell us when you ask for a quote:
- Any access issues, like height or stairs
- A few photos by email, if you can
- The address or postcode of the job
- Roughly how big the job is
There’s no standard price list, as no two jobs are quite the same. Instead, we send you a clear quote for your job. To get started, drop us a line at info@mrmastic.co.uk.
Towns and villages near Tong
Also in Tong
DIY sealant or a professional job?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Work for landlords, hotels and businesses
We work for landlords and letting agents as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order.
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
How the visit works
Once we’re on site, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. After that, the work takes a few hours to a few days, depending on the length of joint and the access. For a place like Tong, longer drives are planned in advance. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- We start by walking round the building and agreeing the joints and the access.
- Every bit of old sealant and any mortar or debris is cut out.
- Joint faces are cleaned back and primed if the sealant needs it.
- We fit closed-cell backing rod to control the depth.
- We apply the sealant, tool it and check the whole run.
Preparing for the visit
- Tell us about any water getting in
- Keep pets and children clear of the area while we work
- Try not to wet indoor joints just before the visit
Getting a quote
If you’re in Tong and need external mastic, send an email to info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
Read more
Keeping the joints in good condition
Simple care keeps the joints in good condition. We recommend:
- Never let anyone fill a movement joint with mortar
- Tell anyone working on the walls about the movement joints
- Do not let climbing plants root in the sealant
- Avoid pressure-washing directly into sealant joints
Don’t let soil, plants or ivy build up against the new joints. Damp material against the sealant shortens its life.
A joint that has stopped moving pushes the movement elsewhere, usually as cracking in the brickwork or render nearby. Catch it early and you reduce the risk.
What happens if it’s left?
Pointing a movement joint with mortar might seem a neat fix, but it locks the joint solid. The movement then cracks the brickwork or render nearby. A flexible sealant over backing rod is what the joint needs. Exposed walls in smaller Scottish places take a lot of wind and rain, and damp in stone or harled walls takes a long time to dry once water gets behind a joint.
Leaving a failed joint normally makes the job bigger, not smaller. If you’re not sure whether it needs doing, drop us a line at info@mrmastic.co.uk for an honest opinion and a quote.
What you get with us
- White, clear, grey or coloured to suit, where the product allows
- Fully insured
- Homes, businesses and hotels
- A 12-month guarantee on all work
See how sealant jobs are priced and our reviews.