Na h-Eileanan Siar · Scotland
Lochmaddy External Mastic
External mastic across Lochmaddy and nearby, with every bit of old sealant taken out first.
- Panel joints letting water in
- Joints pointed up with cement by mistake
- Plants rooting in failed movement joints
Landlord and commercial work in Lochmaddy
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we will quote.
We also work for property managers and facilities teams. We can quote a run of properties together, and we’re fully insured.
How we handle external mastic in Lochmaddy
Ground-floor and low-level joints are straightforward to reach. Where joints are higher up, tell us about the building when you get in touch and we’ll confirm what’s needed to reach them safely. Typical jobs include movement joints with cracked, split or missing sealant and failed seals between different materials, on brickwork movement joints, copings & trims and façade panels.
External sealant needs dry surfaces, so outdoor work around Lochmaddy is planned around the weather, and longer journeys are planned in advance. Let us know about access to every wall and roofline.
Big or small, it’s backed by our 12-month guarantee in Lochmaddy and across Na h-Eileanan Siar.
- Place
- Lochmaddy (HS6)
- Region
- Na h-Eileanan Siar
- Cover
- A year, on every job
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Nearby places to Lochmaddy
What else we do in Lochmaddy
The process
Before we leave, we go over the finished joints with you. The visit itself usually takes anything from a few hours to several days, depending on the building, depending on how much there is to do. In smaller Scottish places, parking is usually less of an issue than access and distance. Let us know how to find you and how to reach the joints.
- First, the joints are inspected and the access agreed.
- Every bit of old sealant and any mortar or debris is cut out.
- The faces are brushed clean and primed where the product requires it.
- Backing rod sized to the joint goes in to set the depth.
- The exterior sealant is applied, tooled and checked along its length.
Preparing for the visit
- Tell us about any water getting in
- Keep pets and children clear of the area while we work
- Mention any parking rules near the property
Get a quote
For a quote, send an email to info@mrmastic.co.uk with the location and a short description of the problem. You’ll have a clear quote before work begins.
Advice
What we are called out for in Lochmaddy
The wrong product in a moving joint is a classic cause. A high-modulus or general-purpose sealant can be too rigid for a busy joint, so it pulls away from the edges.
Any of these means the joints need attention:
- Rigid filler in a joint that should flex
- Leaking joints around cladding and façade panels
- Brick movement joints where the sealant has split
- Failed seals between different materials
For jobs in and around Lochmaddy, choosing the right material for each joint is as important as a tidy finish.
Comparing quotes
- Whether they’re fully insured
- Whether they seal over old material or remove it
- How the surfaces are prepared before sealing
- Which sealant they’ll use, and why
Should I try it myself first?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
Looking after it afterwards
After the cure time, these simple habits help:
- Avoid pressure-washing directly into sealant joints
- Ask before painting over external sealant
- Keep movement joints as flexible joints, not mortar
- Fix overflowing gutters above sealed joints
Keep pressure washers away from the sealant. High-pressure water can lift the edges over time.
Leaks behind façade panels and render often go unseen. By the time there’s a damp patch, the damage can be well established, so it’s worth resealing at the first signs.
How we quote for external mastic
The price is agreed before any work begins. It’s based on:
- Any working-time requirements on site
- How many rooms, windows or areas are involved
- The old material and how stubborn it is
- Any mould that needs treating
What you pay reflects the work, not a rough estimate. That’s why we ask a few questions first and give you a clear price before any work starts.
What we need to know
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- The type of property
- Photos by email, if that’s easy
- How many joints, rooms or windows are involved
- Any previous sealing or DIY work
There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, email us at info@mrmastic.co.uk.
When something else is needed
It helps to know what we can’t do:
- Cracks in the bricks or render themselves, away from the joints
- Cutting new joints into brickwork, which is building work rather than sealant work
- Damp that isn’t coming from the joint
If you are not sure, just send an email to info@mrmastic.co.uk and we will give you a straight answer before booking.
Where we work in Lochmaddy
- Façade panels
- Concrete & block
- Joints between brick and frames
- Brickwork movement joints
- Render & cladding joints
- Copings & trims
Common questions in Lochmaddy
Do you cover Lochmaddy for external mastic?
Yes, Lochmaddy is within the area we cover. Our work covers the whole of Scotland. Just email us at info@mrmastic.co.uk with a few details of the job, and we’ll send you a clear quote.
Does living near the coast affect external mastic in Lochmaddy?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. The right product, a clean joint and the right depth all help it cope.
What is a movement joint?
Walls move with heat, cold and moisture, and planned joints take up that movement. The gap is sealed with a flexible sealant over backing rod.
Are you an approved applicator?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
Can a movement joint be filled with mortar?
No, not if it’s a movement joint. Pointing it stops it working and can lead to cracking. We will reseal it with a flexible sealant.
Is the work guaranteed?
Yes: twelve months. If there’s a problem with our work in that time, tell us and we’ll put it right.
Do you work for hotels and businesses?
Yes. We have worked for hotels, offices and other businesses and we’re fully insured.
Will the new joint stand out?
We choose a sealant colour to suit the brick, stone or render so the joint blends in. Exterior sealants come in a good range of colours.
What external mastic looks like in Lochmaddy
Lochmaddy 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. Both are hard on movement joints and outside wall joints, which can dry out and crack sooner where a building faces the weather. Lochmaddy is in the west of Scotland, which is wetter than the east, which means movement joints and outside wall joints has to cope with a lot of rain.
Around Lochmaddy, as everywhere, external mastic is only as good as the preparation behind it.
Lochmaddy (Gaelic: Loch nam Madadh) is in Na h-Eileanan Siar. Jobs in Lochmaddy get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. We cover 87 towns and villages across Na h-Eileanan Siar, from the larger towns to small villages.
Work in HS6 works the same way as everywhere else we cover. Close by, we work in Clachan Shannda (5 miles north-west), Locheport (6 miles south-west), Ruisgarry (8 miles north), Claddach Kirkibost (9 miles west) and Leverburgh (12 miles north-east). For island and remote addresses, a little more planning is needed, so mention it when you ask for a quote.
Local landmarks in Lochmaddy
Nearby you’ll also find Taigh Chearsabhagh Museum and Arts Centre (0.6 miles south-east). Green spaces nearby include Loch Fada and North Lee.