Aberdeenshire · Scotland
External Mastic in Longside
External mastic in Longside from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Old sealant gone brittle and cracked
- Joints with sealant missing in places
- Cracked joints where brick meets render or frames
How we handle external mastic in Longside
Joints in render and cladding are easy to overlook until a damp patch appears. We look over the joints, agree the ones to renew and reseal with a flexible, weatherproof product in a colour to suit. We’re often asked to deal with hard, crazed mastic that has stopped moving and brick movement joints where the sealant has split, on concrete & block, joints between brick and frames and copings & trims.
Outside joints can only be sealed when they’re dry, so work in Longside depends on the weather, and longer journeys are planned in advance. Let us know about access to every wall and roofline.
We guarantee the work for a year. If something isn’t right with it in that time, tell us and we will put it right.
- Place
- Longside (AB42)
- Wider area
- Aberdeenshire
- Guarantee
- 12 months on all our work
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
How to look after the new joints
So the new joints stay in good condition:
- Keep water from gutters off the wall
- Keep movement joints as flexible joints, not mortar
- Look over the joints every year, ideally after winter
- Wash walls gently around the sealant
Do not let soil, plants or ivy build up against the new joints. Anything that holds water against the joint wears it out sooner.
A joint that has stopped moving pushes the movement elsewhere, generally as cracking in the brickwork or render nearby. Catch it early and you reduce the risk.
Longside questions
Can you do external mastic in Longside?
Yes. Our work covers the whole of Scotland, and Longside is part of that. You can email us at info@mrmastic.co.uk and tell us what needs doing.
Is Longside within the area you cover?
Yes. Longside is within the area we cover, which takes in towns, villages and rural addresses. We work across all of Scotland. Just mention lanes, gates or anything else about the route when you book.
What information do you need?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
How long does external mastic last?
It varies with how exposed the wall is and how much the joint moves. Signs to watch for are cracking, hardening and gaps at the edges.
Can you work on commercial sites?
Yes. Hotels, offices and other businesses use us and we are fully insured.
How much does external mastic cost in Longside?
The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote and we’ll talk you through it.
Can tenants book the work?
We can work for tenants, landlords or agents. Get your landlord’s agreement first.
Do I need to be at home?
Access is agreed with you when the job is booked. Indoors, that usually means someone at home.
Nearby places to Longside
Also in Longside
Landlord and commercial work in Longside
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
How the visit works
A visit follows a simple pattern: we check the joints, protect the area around them, do the work and tidy away. It generally takes anything from a few hours to several days, depending on the building. In smaller Scottish places, parking is normally less of an issue than access and distance. Tell us how to find the property and how to reach the work, and the visit is planned around that.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- Old sealant and any debris are cut and raked out.
- We clean both faces of the joint and prime them where the product calls for it.
- 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.
Getting ready for the visit
- Let us know about parking restrictions
- Plan for the work area to be out of bounds to pets and children
- Let us know if you’ve seen damp or leaks
Ask for a quote
Every job is quoted individually. Just send an email to info@mrmastic.co.uk with the details, and photos are welcome.
Advice
What affects the quote in Longside
We quote each job individually. These are the things that affect it:
- The number of rooms or windows
- When we can work, for business premises
- The type of sealant required
- Any mould that needs treating
Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What to tell us for a quote
Photos by email are helpful but not essential. Try to tell us:
- Where the job is, and your postcode
- Whether it has been sealed before
- Photos by email, if that’s easy
- The rough size of the job
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will talk you through what we’d do. When it suits you, email us at info@mrmastic.co.uk.
Can I do it myself?
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly.
When something else is needed
Sealant is not the answer to every problem, and we’d rather say so up front. Sealant won’t put right:
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Movement that’s more than a sealant joint can take
- Cracked brickwork or render that needs a builder or plasterer
Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we’ll tell you honestly before you book.
What we seal
- Brickwork movement joints
- Concrete & block
- Façade panels
- Render & cladding joints
- Copings & trims
- Joints between brick and frames
What external mastic looks like in Longside
Plenty of Scottish homes have harled walls, and joints where harling meets other materials need a sealant that can grip and flex. Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and sound outside sealant is part of that.
In and around Longside, as anywhere, good external mastic starts with a clean, dry, properly prepared joint. Homes close to Parish Church include some older properties, and older walls, gutters and the joints where extensions meet them need a flexible sealant.
Longside is about 5 miles west of Peterhead, in Aberdeenshire. Wherever you are in the AB42 postcode area, we can carry out external mastic at your property. Across Aberdeenshire, we cover 161 places, and Longside is one of them. You can also see our page for Aberdeen, roughly 26 miles from Longside.
All of AB42 is within our area for external mastic, from the main roads to the quietest streets. External mastic is available to properties on Market Hill, Main Street and Station Road. Nearby, we also carry out external mastic in Mintlaw (2 miles west), Rora (3 miles north-east), Downiehills (3 miles east), Old Deer (4 miles west) and Fetterangus (4 miles north-west). Further out, we also cover Peterhead (5 miles east), Fraserburgh (12 miles north), Ellon (11 miles south-west), Roanheads (6 miles east), Clerkhill (5 miles east) and Port Henry (6 miles east).
What’s near Longside
Well-known places in the area include Inverugie Castle (4.2 miles east) and Carnegie Inverurie Museum (1.9 miles south-west). The countryside around Longside includes Hill of Aldie and Pitfour Lake.
Why deal with it now?
Water gets in through a failed movement joint and can run behind render or cladding. Dealing with it early keeps the repair to the joint, rather than the wall around it. Around Longside, water from a failed joint in an older stone home can soak into timber and plaster, which is a far bigger job than the sealant.
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all play a part.
Why Longside customers choose us
- Sanitary silicone with an anti-fungal additive in wet areas
- Over 20 years’ experience
- Colour picked to suit the job
- White, clear, grey or another colour, product permitting
Take a look at how sealant jobs are priced or our reviews.