Orkney Islands · Scotland
External Mastic in Midland
We cover Midland for sealing brickwork movement joints, render, cladding and façade joints. Old sealant removed completely, joints prepared properly and a 12-month guarantee.
- Cracked joints where brick meets render or frames
- Leaking joints around cladding and façade panels
- Movement joints filled with mortar instead of sealant
How we handle external mastic in Midland
Movement joints let brickwork, render and cladding expand and shrink without cracking. The sealant in it has to stretch and squeeze for years, so once it splits or hardens, the joint stops working and water gets in. We work on façade panels, copings & trims and brickwork movement joints, and people most often call us about damp patches traced to an open external joint and joints with sealant missing in places.
Older stone buildings need a sealant that suits the stone, not an acetoxy product that can mark or attack it. Newer houses need their movement joints and roofline trims kept sound.
Each job carries a 12-month guarantee.
- Location
- Midland (KW17)
- Wider area
- Orkney Islands
- Guarantee
- 12 months on all our work
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
What happens if it’s left?
Mortar or ordinary filler might look like a quick way to close an open joint, but it locks the joint solid. The wall then cracks somewhere else. The correct repair is a flexible sealant with the right backing. Around Midland, water from a failed joint in an older stone home can soak into timber and plaster.
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all play a part, and we’ll explain the quote if you ask.
Why Midland clients choose us
- Anti-fungal silicone where joints get wet
- Old sealant always removed completely
- Colour picked to suit the job
- You choose the colour before work begins
See how sealant jobs are priced and our reviews.
Do you need external mastic in Midland?
Buildings move more than people expect. Brickwork grows a little over the years, blockwork and concrete shrink, and all of it moves with heat and moisture. The sealant in the movement joints takes that strain.
Any of these means the joints need attention:
- Panel joints letting water in
- Rigid filler in a joint that should flex
- Weeds or debris growing in open joints
- Hard, crazed mastic that has stopped moving
Around Midland, as everywhere, external mastic is only as good as the preparation behind it.
Comparing quotes
- How the colour is chosen
- What preparation is included
- Are they insured?
- How long the guarantee is
Other services in Midland
What affects the quote in Midland
Call for a quick quote. What matters most is:
- Working hours on commercial sites
- The number of rooms or windows
- The type of sealant required
- How easy the joints are to reach
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. 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.
Asking for a quote
What to tell us when you ask for a quote:
- Whether it has been sealed before
- Access, such as stairs, a lift or height
- Where the job is, and your postcode
- How many joints, rooms or windows are involved
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and email pictures if that is easy.
Looking after it afterwards
Good habits help new joints last longer. Our tips:
- Show decorators and builders where the movement joints are
- Keep high-pressure jets off the joints
- Act on the first splits you see
- Look over the joints every year, ideally after winter
Do not let soil, plants or ivy build up against the new joints. Anything that holds water against the joint wears it out sooner.
Leaks behind façade panels and render often go unseen. When it finally shows inside, the joint may have been open for years, so it’s worth resealing at the first signs.
What the job involves on each surface
Render joints
The face of render can be soft, so a sealant that stretches easily protects the edges. Priming is done where the sealant calls for it.
Brickwork movement joints
People sometimes point up a brick movement joint by mistake. If that is happened, we rake it out and reseal it properly where it can be done safely.
Landlords, agents and businesses in Midland
Hotels need rooms back in use, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Midland: your questions answered
Does living near the coast affect external mastic in Midland?
Coastal homes put outside sealant through more weather than inland ones, so preparation and the right sealant matter all the more. It’s worth checking the walls that face the sea first.
Will you come out to Midland?
Yes, Midland is covered. Our work covers the whole of Scotland, islands included, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Is it messy?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
When will the joints need doing again?
It depends on the exposure, the movement and the product. Treat it as a maintenance item and look at it yearly and reseal when it splits.
Why is there a gap in my brick wall?
A vertical gap in a long brick wall is normally a movement joint. It lets the bricks expand without cracking, and it should be sealed with a flexible sealant.
Do you seal joints where cladding meets other materials?
Yes. Materials like render, brick, metal and uPVC all move differently, so a flexible sealant is needed where they meet. The sealant is matched to both sides.
Do you guarantee your work?
Yes. Every job comes with a 12-month guarantee.
Do I have to be there?
That depends on where the joints are. For work indoors, someone needs to let us in.
The process
When we get to you, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. After that, the work takes anything from a few hours to several days, depending on the building. For a place like Midland, longer drives are planned in advance. Mention tracks, gates, ferries or anything else about the route.
- First, the joints are inspected and the access agreed.
- We cut out the old mastic and rake out anything in the joint.
- 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.
Before we arrive
- Keep pets and children clear of the area while we work
- Mention any sign-in or site rules at work premises
- Let us know about earlier repairs to the joints
Get a quote
Call for a quick quote, or email us if that is easier. Tell us about the joints that need doing and we will explain what’s involved.
Read more
External mastic in Midland: local notes
Midland 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. Work on the islands has to be planned around ferry crossings and the weather, so the more notice, the better.
If you live in an older home near Round Kirk, an extension built onto an older house moves differently, and the joint between them takes the strain.
Midland is about 9 miles south-west of Kirkwall, in the Orkney Islands. Wherever you are in the KW17 postcode area, we cover external mastic for homes and businesses. Our the Orkney Islands coverage runs to 51 places, Midland among them.
Every address in KW17 is within our area for external mastic. Neighbouring places we cover for external mastic include Orphir (1 mile north-east), Clestrain (2 miles north-west), Kirbister (3 miles north-east), Germiston (4 miles north) and Clouston (5 miles north-west). Remote and island addresses need a little more planning, so please mention your location when you drop us a line at info@mrmastic.co.uk.
Local landmarks in Midland
Green spaces nearby include Water of the Wicks and Hill of Midland.