Highland · Scotland
Scrabster Window Mastic
Professional window mastic in and around Scrabster, with every bit of old sealant taken out first and a 12-month guarantee.
- Damp patches on the reveal after heavy rain
- Black, perished sealant on frames
- Cracked or shrunken mastic around the frame
Window mastic in Scrabster
The new joint doesn’t have to be white. White, brown, anthracite grey, black and clear sealants are all available, so the line suits the frame instead of standing out. If you have rain getting in at the frame or under the sill and mastic that has split away from the wall, we can put it right, whatever the surface.
Older stone-built homes in Scotland often have sash and case or timber windows set in stone. Those suit a traditional sand mastic or a neutral-cure sealant, not an acetoxy silicone that can attack some stone.
We stand behind the work with a 12-month guarantee, so you’re not left on your own once the job is done.
- Place
- Scrabster (KW14)
- Wider area
- Highland
- Cover
- A year, on every job
- Quotes
- A clear price before we start
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Windows and doors in Scrabster
Scrabster is within about 1 mile of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is hard on the mastic around window and door frames, especially on the side facing the sea. Sash and case windows are common in older Scottish homes, often pointed into the wall with traditional sand mastic.
If you let a flat or house near Thurso station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Scrabster is about 2 miles north-west of Thurso, in Highland. Scrabster gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. We cover 253 towns and villages across Highland.
We work across the KW14 postcode area for window mastic. Whether your property is on Clett Terrace, St Clair Avenue and Holborn Place or anywhere close by, we can help. We also cover the places around Scrabster: Thurso (2 miles south-east), Glengolly (3 miles south), Janetstown (3 miles south), Forss (3 miles west) and Murkle (4 miles east). If you are somewhere remote, a little more planning is needed, so let us know when you get in touch.
Around Scrabster
For rail, the closest station is Thurso station, about 1.7 miles south-east. Other landmarks nearby include Dunbar Hospital (1.9 miles south) and Scrabster Castle (0.9 miles south-east).
Other services in Scrabster
When it isn’t the sealant
New sealant can’t fix everything, and we will tell you before any work starts. It will not solve:
- A door that needs adjusting, rehanging or new seals
- Damp coming through the wall itself rather than the frame joint
- A sash or casement that will not close properly
If you are not sure, just drop us a line at info@mrmastic.co.uk and we will give you a straight answer before you book.
Joints and surfaces we work on
- Patio & French doors
- uPVC windows
- Composite doors
- Timber windows & doors
- Aluminium frames
- Window sills
Quotes for window mastic in Scrabster
Your quote is based on your job. We take into account:
- Which sealant suits the joint
- How many areas need sealing
- Whether old sealant or filler has to be cut out
- Whether there’s mould to deal with
We don’t show prices on the website, because each job is priced on what it involves. For a quick quote, please email us at info@mrmastic.co.uk and we’ll talk you through it.
What to tell us for a quote
To help us quote quickly, let us know:
- The type of property
- The address or postcode of the job
- Photos by email, if that’s easy
- How we’d reach the joints
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we’ll explain what’s involved before giving you a price.
How the job changes by surface
Window sills
Where a sill meets brick or render, the ends often crack first. A tight seal at each end keeps rain out of the wall.
Aluminium frames
Large aluminium doors have long joints down each side and across the head, and the threshold joint takes a lot of water. Each is cleaned, backed where deep and resealed.
How to look after the new joints
Good habits help new joints last longer. A few tips:
- Keep drainage slots and sill grooves clear
- Don’t use solvent cleaners on the joint
- Paint up to the joint, not over it
- Check the mastic once a year
Try not to touch the new joint while it cures, for as long as we advise. Keep jet washers away from the frames.
Draughts get worse, not better. As old mastic keeps shrinking, the gap widens, and heat escapes around the frame. A new joint closes it up.
The process
A visit follows a simple pattern: we check the joints, protect the area around them, carry out the job and tidy away. It normally takes a few hours for a few frames, or a day or more for a whole house. Around Scrabster, distance and access matter more than parking. Let us know how to find you and how to reach the joints, and the visit is planned around that.
- Each frame is looked over and we agree which ones need resealing.
- The old mastic is cut out and scraped back to clean surfaces.
- Deep gaps get closed-cell backing rod to set the depth.
- A flexible exterior sealant is applied in a colour to suit the frame.
- Every joint is tooled smooth and checked before we leave.
Before we arrive
- Mention any leaks or damp you’ve noticed
- Plan for the work area to be out of bounds to pets and children
- Let us know about stairs, lifts or work at height
Get a quote
We quote each job on its own. Simply send an email to info@mrmastic.co.uk and describe the job and send pictures if you have them.
Related advice
Common questions in Scrabster
Is window mastic in a coastal place like Scrabster any different?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Can you help a landlord with a rental near Thurso station?
Yes, rental work is part of what we do. Just send an email to info@mrmastic.co.uk and tell us about the property, and we will send you a clear quote.
Are you fully insured?
Yes. Full insurance covers our work.
Is it messy?
No. We protect the surfaces around the joints, and we tidy up before we go.
Do you cover Scrabster?
Yes. From our base in Crawley, we cover South East England, London and all of Scotland.
What do you need from me for a quote?
Only a few details: the address or postcode, what’s wrong and any access issues. After that, simply send an email to info@mrmastic.co.uk.
Can you match the sealant to my frames?
Yes, in most cases. Tell us the frame colour when you get in touch and we will use the nearest match.
Can resealing stop a draught around my window?
Yes, where the draught is at the frame edge. We check where the draught is before any work starts.
What we’re called out for in Scrabster
Sun, frost and rain wear sealant out. UV light hardens the outside of the bead, until it loses its stretch and starts to crack.
Any of these means the joints need attention:
- A bead that doesn’t match the frame
- Whistling draughts around closed windows
- Untidy mastic left by window fitters
- Water coming in at the bottom corners of a door
Managing a site like Thurso High School? Then the mastic around its windows and doors needs looking after like any other building’s.
What your quote should include
- Are they insured?
- What happens if the job turns out different
- What the cure time is
- Whether VAT is included
Work for landlords, hotels and businesses
If you manage several properties in or around Scrabster, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs, and pictures by email help.
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we will quote.