Johnshaven mastic sealing
Mastic sealing for building owners, managing agents and housing associations in Johnshaven and across Aberdeenshire. CHAS accredited and fully insured, with a 12-month guarantee.
- The same joint failures repeated across a portfolio
- Patchy repairs in mismatched sealant
- Occupiers reporting cold air round windows
Mastic sealing near Johnshaven
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Mastic sealing in Johnshaven, done properly
For over 20 years we have resealed joints for owners, agents and landlords. Every applicator holds a CSCS card and we hold public liability insurance. Each building we complete carries a 12-month guarantee on our workmanship. We work on balcony and threshold joints, communal entrances and stairwells and communal kitchens and washrooms, and what we’re called in for most is movement joints with sealant missing and leaks at window and door perimeters. Facilities teams, main contractors and managing agents in Johnshaven tend to want the same three things: a fixed quote, no surprises on site and a 12-month guarantee behind the result.
Around Johnshaven, outside mastic waits for dry weather and the right temperature. We agree a window with some flexibility.
The 12-month guarantee is for workmanship rather than wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we spell out the cover before we begin.
- Where
- Johnshaven (DD10)
- Wider area
- Aberdeenshire
- Cover
- 12 months on our workmanship
- Quote
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Updated
- 3 November 2026
What happens if it’s left?
Failed perimeter mastic lets cold air in around frames, and they often blame the windows. In many cases, new perimeter sealant deals with it when the frames themselves are sound. Buildings that aren’t in daily use, such as halls and seasonal premises, may let water in unnoticed, so a failed joint has time to cause damage. Early resealing prevents it.
No two sites price the same: the joint sizes, the specified product, access and working hours each have a bearing. A fixed quote follows once we understand the job.
Why clients in Johnshaven choose us
- Joints cleaned back to sound surfaces
- Work to your specification and the manufacturer’s guidance
- CSCS-carded applicators
- One contact handling all your sites
See our cost guide and how we’re accredited.
Our process
Occupied buildings need a little choreography. We sign and contain the area we’re in, with routes through the building left open and move on in phases so staff and visitors can carry on around us. For work around Johnshaven, we aim for one trip, which is why we ask for photos and a full list first. Outside work also needs a suitable weather window.
- First comes a look at the joints and, for older buildings, the asbestos records.
- A fixed quote covers the joints, products and order of work.
- Failed mastic is removed completely.
- Joint faces are cleaned, backed and resealed.
- We finish each building before moving to the next.
Preparing the site
- Flag any permit to work we’ll need
- Share your working hours and any access restrictions
- Share the asbestos register for older buildings
Get a fixed quote
Tell us about the building, the joints and when you need the work done, and we will put a fixed quote together. The easiest way is to speak to us on 01277 525 020 or email drawings and photos.
Related advice
Frames, entrances and external joints in Johnshaven
Johnshaven lies within about 1 mile of the sea. Blocks and commercial buildings facing the sea take the most weather on their window perimeters and external joints, and they deserve more regular inspection. Being in the east of Scotland, Johnshaven gets less rain than the west coast. Outside mastic still waits for dry, frost-clear conditions. Programmes allow for that
Wherever your building is in or near Johnshaven, we look at the whole elevation before quoting, so you know what needs doing now. For owners and agents with buildings in or around Johnshaven, block-wide mastic programmes deal with frames and external joints of the same age together.
Johnshaven is about 8 miles north-east of Montrose, in Aberdeenshire. We cover Johnshaven and the rest of Aberdeenshire, with the same fixed quotes and 12-month guarantee as everywhere else. Across Aberdeenshire, 179 places are covered, including Johnshaven. Aberdeen is covered too, some 26 miles away.
If you need mastic sealing in DD10, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. If your site is on Square, Main Street and Mid Street or close by, send details and we’ll quote for mastic joints. Nearby places we also cover include Gourdon (3 miles north-east), St Cyrus (3 miles south-west), Inverbervie (4 miles north-east), Arbuthnott (5 miles north) and Laurencekirk (6 miles north-west).
Near you in Johnshaven
Other landmarks nearby include Benholm Castle (2.1 miles north). Not far away are St Cyrus National Nature Reserve.
What sets the cost
What shapes the price:
- Specialist products, such as fire-rated or hygienic sealants
- Any access equipment needed
- The size and state of each joint
- How much existing material needs removing
Small jobs and large programmes are priced from the same things: scope, access, product and programme. Call for a quote and we’ll put a fixed figure on it.
What we need to price the job
For an accurate fixed quote, we need a clear picture of the site. Send us:
- The product your specification calls for
- Clear photos of the problem areas
- Where the site is, with the postcode
- When you need the work done
To get a fixed quote, ring 01277 525 020 or send photos by email. Our quote form is another easy route.
For managing agents and facilities managers
Hotels, schools, healthcare sites, offices and retail units come to us directly as well. We plan around the way the building is used, so guests, pupils, patients or staff are disturbed as little as possible.
Building owners and managing agents use us on everything from one building to a spread of sites. Several sites can go on one quote, so there’s one set of paperwork to deal with.
What the job involves on each surface
Window and door perimeters on blocks
Blocks have a mix of frame materials, so the grade we pick has to bond to frame and wall alike. We’ll confirm the colours available for the specified product.
Planned maintenance
Mastic wears out like any building component; how fast comes down to movement, weather, UV and the product. Regular inspection is the best way to plan resealing.
What sealant work can’t fix
Some faults sit outside our scope, and we point that out rather than sealing over them:
- Leaks from above rather than through a joint
- Materials that need asbestos testing before work
- Substrate edges that need repairing first
Not sure which it is? You can call the office on 01277 525 020 or email drawings and photos and we’ll tell you honestly.
What we seal
- Communal entrances and stairwells
- Balcony and threshold joints
- Communal kitchens and washrooms
- Window and door perimeters on blocks
- External wall and movement joints
- Shopfronts below residential blocks
Your questions answered
Is Johnshaven too far out for you?
Not at all. Johnshaven is within our area. Our area covers all of Scotland, cities, towns and islands alike. Good photos up front let us bring everything on the first visit.
Will you price a mastic programme across our Johnshaven portfolio?
Yes, we quote for single buildings and for programmes across several blocks. Send the addresses and photographs and we’ll give a fixed quote.
How soon can the area be used again?
That comes down to the sealant and the temperature. Some take light use quickly, others need longer to cure, and we confirm it before leaving site.
How many days will you need on site?
The duration is planned around your programme and the access we are given. We’ll give you an estimate of time on site when we quote.
How do you handle work on occupied blocks?
Residents and tenants carry on as normal. If any flats or units need access, we’ll tell you in advance so you can arrange it with occupiers.
Does weather matter for sealant work?
It can, for external work. Sealant won’t bond properly to a wet or frosty joint, so external work may be moved if conditions aren’t right. Indoors, the weather is rarely a problem.
Can you take on resealing for a block portfolio?
We do. Most of our mastic sealing is for agents, factors, housing associations and portfolio landlords and work can be quoted per building or as a whole.