Highland · Scotland
Window Mastic in Janetstown
We cover Janetstown for mastic around window and door frames, sills and patio doors. Old material cut out, joints cleaned and sealed neatly and a 12-month guarantee.
- Gaps where the sill meets the wall
- Mastic that is falling out in pieces
- Rushed sealant from a window installation
Janetstown homes and the weather
Janetstown is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on the mastic around window and door frames, which can dry out and crack sooner where a building faces the weather. 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.
Managing a site like Thurso High School? Then the mastic around its windows and doors needs looking after like any other building’s. For landlords with property near Thurso station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Janetstown is about 3 miles south-west of Thurso, in Highland. Whether you are in the middle of Janetstown or further out, we cover window mastic for every kind of property. We cover 253 towns and villages across Highland.
Here we cover the KW14 postcode area for window mastic. Other places close to Janetstown include Glengolly (1 mile east), Westfield (2 miles south-west), Thurso (3 miles north-east), Scrabster (3 miles north) and Forss (3 miles north-west). Island and remote addresses take a little more planning, so please mention your location when you send an email to info@mrmastic.co.uk.
Local landmarks in Janetstown
The closest station to Janetstown is Thurso station, roughly 2.4 miles north-east of the centre. A little further out are Dunbar Hospital (1.8 miles north-east) and Thurso Heritage Museum (2.7 miles north-east). Not far away are Broubster Leans RSPB Reserve and Loch Calder.
Window mastic in Janetstown
Colour matters on a frame. White, brown, anthracite grey, black and clear sealants are all available, so the line suits the frame instead of standing out. If you are dealing with gaps where the sill meets the wall and hard, cracked sealant around windows, we can put it right, whatever the surface.
Across smaller places in Scotland, homes range from stone and harled cottages to newer houses, many standing in the open. Wind-driven rain finds any gap around a frame or sill.
You’re covered for a year from the day we finish. If anything isn’t right with it, email us at info@mrmastic.co.uk.
- Place
- Janetstown (KW14)
- Region
- Highland
- Guarantee
- 12 months on all our work
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Other services in Janetstown
How the visit works
We bring everything the job needs with us. Once we have agreed what’s being done, the area is protected and the work begins. Most jobs take most of a day for a typical house, less for a few frames. Around Janetstown, distance and access matter more than parking. Tell us how to find the property and how to reach the work.
- Each frame is looked over and we agree which ones need resealing.
- The old mastic is cut out and scraped back to clean surfaces.
- Where the gap is deep, backing rod goes in first.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- Every joint is tooled smooth and checked before we leave.
Before we arrive
- Tell us about access, such as stairs, a lift or high-level joints
- Keep children and pets away from the work area
- Mention any parking rules near the property
Get a quote
We quote each job on its own, so start by telling us what you need. Just send an email to info@mrmastic.co.uk with the details.
Read more
Landlords, agents and businesses in Janetstown
We also work for property managers and facilities teams in Janetstown and across Highland. Several sites can be quoted together.
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
When it is not the sealant
In fairness, some problems need a different trade:
- Soft or decayed wood in the frame
- Faulty window hardware
- Condensation trapped between the panes
Not sure which it is? You can email us at info@mrmastic.co.uk and we’ll tell you honestly.
Surfaces we seal
- uPVC windows
- Patio & French doors
- Composite doors
- Window sills
- Aluminium frames
- Timber windows & doors
Why act early in Janetstown
Not every sealant suits a window. Interior caulk and bathroom silicone aren’t made for exterior frame joints. A low-modulus exterior sealant keeps its stretch through hot and cold weather. Exposed walls in smaller Scottish places take a lot of wind and rain, and once water gets behind a failed joint, damp in stone or harled walls is slow to dry out.
Leaving a failed joint normally makes the job bigger, not smaller, as water and mould keep getting in. If you’re unsure, send an email to info@mrmastic.co.uk for an honest opinion and a quote.
Why choose Mr Mastic in Janetstown
- Any old sealant cut out fully, not covered over
- Fully insured
- 180+ five-star Google reviews
- Tidy, careful work
Common questions in Janetstown
I let a flat near Thurso station. Can you help?
Yes. We work for landlords and agents as well as householders. You can send an email to info@mrmastic.co.uk with the details for a clear quote.
Is Janetstown within the area you cover?
Yes, Janetstown is covered. Our work covers the whole of Scotland, from towns to the smallest places. Longer journeys are simply planned in advance.
Can I add another job to the visit?
Yes. More than one area can go on one quote.
Where do you work from?
Our base is Crawley. We work across South East England, London and Scotland.
Can you get sealant to suit coloured frames?
Yes. White, brown, anthracite grey, black and clear sealants are all available.
Does the work come with a guarantee?
Yes. Our one-year guarantee covers every job.
Can I do it myself?
You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
What sealant do you use?
The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
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. Each is cleaned out and resealed.
Timber windows & doors
Where timber has rotted at the joint, it needs repairing first. If we find rot, we’ll tell you before going ahead, as a joiner will need to deal with it.
How we quote for window mastic
Jobs vary more than people expect. What affects the quote:
- Mould in or behind the old joints
- The number and length of the joints
- Whether old sealant or filler has to be cut out
- Whether the work is at height
What it costs depends on the size of the job, how hard the old material is to remove and access to the work. We give a clear quote before work begins, so you know where you stand.
Asking for a quote
What to tell us when you ask for a quote:
- If someone has resealed it before
- Access, such as stairs, a lift or height
- A few photos by email, if you can
- The problem you’ve noticed
If you’re in Janetstown and need window mastic, email us at info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and you will get a clear quote before any work starts.
Should I try it myself first?
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.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.