Na h-Eileanan Siar · Scotland
External & façade joints in Aird Tong, Na h-Eileanan Siar
External mastic for Aird Tong and the surrounding area: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Weathered mastic that no longer stretches
- Movement joints filled with mortar instead of sealant
- Failed sealant between panels on a façade
External mastic in Aird Tong
Failed sealant is cut out, the depth set with closed-cell backing rod, and the joint resealed with a low-modulus sealant made for outside. The colour is chosen to suit the brick or render. We work on concrete & block, render & cladding joints and joints between brick and frames, and people most often call us about rain getting behind render or cladding at a joint and panel joints letting water in.
External sealant needs dry surfaces, so outdoor work around Aird Tong is planned around the weather. Let us know about access to every wall and roofline.
Each job carries a 12-month guarantee.
- Where
- Aird Tong (HS2)
- Wider area
- Na h-Eileanan Siar
- Guarantee
- 12 months on all our work
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
How the visit works
Every visit runs the same way: we check the joints, mask and protect the surrounding surfaces, do the work and tidy away. Most jobs take anything from a few hours to several days, depending on the building. Around Aird Tong, 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.
- 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.
- 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.
Preparing for the visit
- Keep pets and children clear of the area while we work
- Tell us about any water getting in
- Tell us about access, such as stairs, a lift or high-level joints
How to get a quote
For a quote, email us at info@mrmastic.co.uk with the location and a short description of the problem. You will have a clear quote before any work starts.
Advice
Walls and rooflines in Aird Tong
Aird Tong is close to 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. Plenty of Scottish homes have harled walls, and where harling meets frames, pipes and other materials, the joint needs a flexible sealant that grips a rough surface.
For jobs in and around Aird Tong, choosing the right material for each joint is as important as a tidy finish.
Aird Tong (Gaelic: Aird Thunga) is in Na h-Eileanan Siar. If you need external mastic in Aird Tong, please drop us a line at info@mrmastic.co.uk for a quick quote. We are based in Crawley and cover Na h-Eileanan Siar. Aird Tong is one of 87 places in Na h-Eileanan Siar we cover.
Jobs for external mastic in HS2 works the same way as everywhere else we cover. Nearby, we also carry out external mastic in Tong (1 mile west), Upper Coll (1 mile north), Steinis (2 miles south), Newmarket (2 miles south-west) and Bac (2 miles north-east). Remote and island addresses need a little more planning, so tell us where you are when you ask for a quote.
Near you in Aird Tong
A little further out are Western Isles Hospital (2.6 miles south-west) and Lewis Loom Centre (3.2 miles south-west). Green spaces nearby include Loch Àirigh na Lic.
How the job changes by surface
Render joints
The face of render can be soft, so a low-modulus sealant is kinder to the joint edges. We prime where the product needs it.
Brickwork movement joints
Brick moves with heat and moisture, and grows a little over time. That movement goes into the joint, so its sealant has to stay flexible.
Do you need external mastic in Aird Tong?
Sunlight, wet weather and frost wear exterior sealant down. In time it goes hard, crazes on the surface and stops stretching, so the joint eventually tears or comes away from one side.
The most common problems we see are:
- Cracked joints where brick meets render or frames
- Damp patches traced to an open external joint
- Failed sealant between panels on a façade
- Sealant pulling away from one side of the joint
In and around Aird Tong, as anywhere, good external mastic starts with a clean, dry, properly prepared joint.
Comparing quotes
- Who turns up on the day
- What product goes in the joint
- Whether they’re fully insured
- What happens if they find a problem under the old sealant
Aird Tong: your questions answered
Is Aird Tong in your area for external mastic?
Yes, Aird Tong is within the area we cover. We work across all of Scotland. You can drop us a line at info@mrmastic.co.uk and tell us what needs doing, and we will send you a clear quote.
Is Aird Tong within the area you cover?
Yes, we do. We work across all of Scotland, islands included, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Can you seal joints between render and window frames?
Yes. The old joint is removed, both surfaces cleaned and primed where needed, and a flexible sealant applied. The colour is chosen to suit.
Can you reach joints on upper floors?
It depends on the building. Tell us the height, the number of joints and what’s below them and we’ll confirm how they can be reached safely.
Where do you work from?
We’re based in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
Will it make a mess?
No. The area is protected while we work and cleaned up afterwards.
Can new sealant go over the old?
No, and we never do. It can look neat for a few weeks, but the new layer lifts away from the old one. The old sealant has to come out completely.
What do you need from me for a quote?
Only a few details: the address or postcode, what’s wrong and any access issues. Then send an email to info@mrmastic.co.uk.
How we quote for external mastic
There’s no set price list. What we look at:
- The amount of work
- Whether the work is at height
- The number of rooms or windows
- How much old sealant there is and how hard it is to remove
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please email us at info@mrmastic.co.uk.
Helping us quote
Photos by email are helpful but not essential. Try to tell us:
- Where the property is
- The type of property
- What’s wrong with the joints now
- How many joints, rooms or windows are involved
Call for a quick quote, or email us if that is easier. Describe what needs sealing and we will talk you through the work before giving you a price.
Why act early in Aird Tong
An open joint keeps letting water into the wall with every downpour. In cold weather, frost can damage wet brick and render near the open joint, so the damage spreads beyond the joint. In a place like Aird Tong, small leaks are easy to put off, but water through a failed joint keeps working away until it’s fixed.
Some things make a job bigger or smaller: 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.
Why Aird Tong customers choose us
- White, clear, grey or coloured to suit, where the product allows
- Full insurance on every job
- 180+ five-star Google reviews
- More than 20 years in sealant work
Read what affects the cost or our reviews.
DIY sealant or a professional job?
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, and the work is guaranteed for a year.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
Other services in Aird Tong
Landlord and commercial work in Aird Tong
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
In hotels, rooms out of use cost money, so the work can be planned room by room. We have worked in hotels as well as homes and businesses.