Highland · Scotland
Nairn Window Mastic
Mastic around window and door frames, sills and patio doors for Nairn, backed by a 12-month guarantee. Ask us for a quote.
- Cracked internal joints between frame and plaster
- Cracked or shrunken mastic around the frame
- Old mastic that has gone black or come away
Window mastic for homes and businesses in Nairn
A window frame and the wall around it expand and shrink at different rates. Heat and cold make frames grow and shrink against brick or render that hardly moves. That’s why the joint needs a flexible, low-modulus sealant rather than something rigid. We work on aluminium frames, patio & French doors and composite doors, and people most often call us about gaps left after new windows were fitted and sealant in the wrong colour for the frame.
Scottish towns like Nairn tend to mix older stone-built streets, harled houses and newer estates, and windows range from older sash and case to modern uPVC. Each needs the right sealant against the right wall.
The work is covered for a year after we finish. If there’s a problem with it, please email us at info@mrmastic.co.uk.
- Where
- Nairn (IV12)
- Wider area
- Highland
- Cover
- A year, on every job
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Common problems we fix in Nairn
Joints that are too thin or too deep fail early. A thin smear across a wide gap has nothing to it, while a joint packed solid cannot stretch. That’s what backing rod is for.
Signs it’s time to call us include:
- Cracked or shrunken mastic around the frame
- Gaps where the sill meets the wall
- Gaps between the frame and the inside reveal
- Mastic that is falling out in pieces
For site and facilities teams at buildings such as Nairn Academy, the mastic around its windows and doors needs looking after like any other building’s.
Before you book anyone
- What happens if they find a problem under the old sealant
- Is the old sealant removed completely?
- Whether they’re fully insured
- Whether the sealant suits the joint
Nairn questions
Can you help a landlord with a rental near Nairn station?
Yes. We work for letting agents and landlords as well as homeowners, and several properties can be quoted together. Just send an email to info@mrmastic.co.uk with the address and what needs doing, and we will give you a clear price.
Can you do window mastic in Nairn?
Yes. Our work covers the whole of Scotland, and Nairn is part of that. Just send an email to info@mrmastic.co.uk with a few details of the job.
What information do you need?
A short description and the location, plus pictures if you have them. We’ll ask anything else we need to know.
Do you work on first-floor windows?
Yes, if safe access is possible. For high or awkward windows, we will tell you what access is needed.
How long does it take to reseal the windows on a house?
It depends on access, the old mastic and the size of the frames. You’ll know the timing when we quote.
Can you work on commercial sites?
Yes. We work in offices, washrooms, hotels and other commercial premises. We can talk about working times when we quote.
Do you hold any approvals?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
Can you match the sealant to my frames?
Yes. We can use white, brown, anthracite grey, black or clear, so the joint suits the frame.
For landlords and businesses
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Nairn homes and the weather
Nairn is within about 1 mile of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s hard on the mastic around window and door frames, especially on the side facing the sea. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that.
In the older streets around The High Church and Church Hall, the joint between an old wall and a newer frame is normally the first place rain gets in. For landlords with property near Nairn station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Nairn is about 15 miles north-east of Inverness, in Highland. We carry out window mastic for homeowners, landlords and businesses in Nairn and nearby. Our area takes in 253 places across Highland. We also work in Aberdeen, around 72 miles away.
Our applicators cover all of the IV12 postcode area for window mastic and the streets around it. Window mastic is available to properties on High Street, Millbank Street and Queen Street. With the A96 and A939 close by, Nairn is easy for our applicators to reach. We also cover Kingsteps (1 mile north-east), Auldearn (2 miles east), Cawdor (3 miles south), Ardersier (6 miles west) and Dyke (7 miles east). Further out, we also cover Inverness (15 miles south-west), Cradlehall (12 miles south-west), Merkinch (15 miles south-west), Hilton (15 miles south-west), Invergordon (13 miles north-west) and Crown (15 miles south-west). Nairn is among the bigger towns we cover in Highland. Island and remote addresses take a little more planning, so please mention your location when you drop us a line at info@mrmastic.co.uk.
Landmarks near Nairn
There’s a railway station in Nairn itself: Nairn station. A little further out are Nairn Town and County Hospital (under half a mile south) and Highland Railway Museum (under half a mile south). The countryside around Nairn includes Hill of Urchany and Loch Loy.
What the job involves on each surface
Window sills
Every drop off the glass ends up on the sill, so the joints at each end and underneath matter. They’re cut out and resealed with exterior sealant.
uPVC windows
We clean the frame edge carefully so the plastic isn’t marked, then the new bead is laid against the frame and the wall.
What affects the cost of window mastic
Some jobs are bigger than they look, and some smaller. The main factors:
- When we can work, for business premises
- How much old sealant there is and how hard it is to remove
- How many areas need sealing
- The type of sealant required
The cost depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before we start.
Asking for a quote
To help us quote quickly, please include:
- Access, such as stairs, a lift or height
- Where the job is, and your postcode
- A few pictures by email, if you can
- The rough size of the job
Getting a quote is simple: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job.
Looking after it afterwards
To keep the joints looking good and working properly:
- Make sure the drainage slots are not blocked
- Check the mastic once a year
- Keep timber frames painted
- Don’t aim a pressure washer at the joints
A yearly look round the frames is enough. Small splits are simple to catch before they leak, and if anything looks wrong, just send an email to info@mrmastic.co.uk.
Draughts get worse, not better. As the old mastic shrinks further, more air gets through, and heat escapes around the frame. A new joint closes it up.
Also in Nairn
How the visit works
On the day, we look over the joints with you first, so there are no surprises. Surfaces next to the work are protected before any work starts. Most jobs take a few hours for a handful of frames, longer for a whole house. Parking around Nairn is rarely difficult, though older streets in the centre can be tight. If you are in a flat with a shared stair or a door entry system, let us know when you book.
- We check how each frame can be reached safely.
- Old, cracked mastic is removed completely, along with any loose debris.
- The surfaces are cleaned and left dry.
- Deep voids are backed, then the sealant is gunned in.
- The joint is shaped to shed water and the area tidied.
Getting ready for the visit
- Mention any sign-in or site rules at work premises
- For indoor joints, keep the area dry beforehand if you can
- Tell us about access, such as stairs, a lift or high-level joints
Getting a quote
Every job is quoted individually, so start by telling us what you need. Simply send an email to info@mrmastic.co.uk and describe the job.
Read more
When something else is needed
We will always be straight with you, so here’s what sealant cannot fix:
- Rotten timber, which needs a joiner first
- Damp problems in the wall away from the window
- A failed sealed unit that has misted up
If you are not sure, just send an email to info@mrmastic.co.uk and we’ll give you a straight answer.
What we seal
- Timber windows & doors
- uPVC windows
- Composite doors
- Window sills
- Patio & French doors
- Aluminium frames