Highland · Scotland
Glengolly Sand Mastic
Sand mastic for Glengolly, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Patchy fillers round a sash window
- Draughts and rain around sash boxes
- Old sand mastic that has cracked, crumbled or fallen out
Your questions about sand mastic in Glengolly
Does the coastal weather in Glengolly affect outside sealant?
Near the sea, outside joints face more wind, rain and salt than they would inland, so the choice of sealant and the preparation matter even more. Walls facing the sea are generally the first to need attention.
Can you help a landlord with a rental near Thurso station?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just email us at info@mrmastic.co.uk with the address and what needs doing, and we’ll give you a clear price.
Is the work guaranteed?
Our 12-month guarantee covers every job, sand mastic included.
Do you remove the old sealant?
Yes, always, and completely. New silicone does not stick to old silicone, so any old material comes out before anything new goes in.
Can I add another job to the visit?
Yes. Just list everything you need and you will get one quote.
Can I choose the sealant colour?
We will suggest a colour to suit the surroundings. The product needed can limit the range.
Should I try DIY first?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
Is consent needed for window work on a listed home?
Speak to your local planning authority before work starts. Sand mastic is often favoured as like for like but the decision is theirs.
About our sand mastic in Glengolly
Old sand mastic cracks, crumbles and falls out over time, leaving gaps round the window. Renewing it closes the gap and tidies the surround. Common call-outs are for failed mastic on an exposed elevation and open joints round the window box, across stone surrounds, sash and case windows and tenement windows.
In and around a place like Glengolly, homes range from older stone-built cottages to newer houses. Exposed frames and sills take the full force of wind-driven rain.
A 12-month guarantee comes with the work, just as it does everywhere we cover.
- Location
- Glengolly (KW14)
- Wider area
- Highland
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
What we’re called out for in Glengolly
Most of it is simply age. Sand mastic is a maintenance item like any pointing, depending on exposure and upkeep.
The most common problems we see are:
- Cement or filler used on old window joints that has cracked
- Cracked mastic round a front door frame
- Weathered mastic on the most exposed windows
- Wind and rain getting in round a sash window
For site and facilities teams at buildings such as Thurso High School, larger buildings have plenty of frames, and the mastic around each one ages.
What to look for in a quote
- How the joint is cleaned and prepared
- Is the old sealant removed completely?
- What the quote includes, VAT included or not
- Are they insured?
Also in Glengolly
For landlords and businesses
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
What happens if it’s left?
Silicone might seem the quicker option, but on period stone or brick it often looks out of place. Sand mastic is the traditional material and blends with the stone or brick. When the nearest tradesperson is a drive away, it’s tempting to leave a small leak, but water through a failed joint keeps working away until it’s fixed.
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
Why choose Mr Mastic in Glengolly
- Over 20 years’ experience
- Domestic, commercial and hotel work
- We’re fully insured
- An ARBOMaster approved applicator
Take a look at our cost guide and our reviews.
Can I do it myself?
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
When it isn’t the sealant
In fairness, some problems need a different trade:
- Broken panes
- Timber that has rotted
- Masonry that needs repairing
If in doubt, send an email to info@mrmastic.co.uk and we’ll say what we think before you book.
What we seal
- Tenement windows
- Brick reveals
- Period & listed homes
- Stone surrounds
- Sash and case windows
- Timber door frames
The process
There isn’t much for you to do on the day. Show us the job and we’ll take it from there. The job generally takes anything from a few hours to a full day, depending on how many windows, including the tidy-up. Around Glengolly, distance and access matter more than parking. Tell us how to find the property and how to reach the work, and the visit is planned around that.
- We look at the surrounds with you and agree the joints to renew.
- We remove the old, loose mastic.
- We pack any deep voids first.
- The sand mastic is mixed and pressed into the joint by hand.
- The surface is finished to suit the stone or brick.
Preparing for the visit
- Clear items away from the joints we’re working on
- For indoor joints, keep the area dry beforehand if you can
- Mention any leaks or damp you’ve noticed
Getting a quote
If you are in Glengolly and need sand mastic, email us at info@mrmastic.co.uk. Tell us what the problem is and where, and we will agree the price before any work begins.
Related advice
Glengolly homes and the weather
Glengolly is within about 3 miles of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That’s hard on the mastic around older windows and doors, especially on the side facing the sea. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and sound outside sealant is part of that.
Letting a property close to Thurso station? Then older sash windows in a rental need their mastic kept sound to keep the weather out.
Glengolly is about 2 miles south-west of Thurso, in Highland. We carry out sand mastic for homeowners, landlords and businesses in Glengolly. 253 places in Highland are on our list, from the larger towns to small villages.
Jobs for sand mastic in KW14 works the same way as everywhere else we cover. If you’re just outside Glengolly, we cover Janetstown (1 mile west), Thurso (2 miles north-east), Scrabster (3 miles north), Westfield (3 miles south-west) and Forss (4 miles north-west). If you’re somewhere remote, the job takes a little more planning, so let us know when you get in touch.
What’s near Glengolly
For rail, the closest station is Thurso station, about 1.5 miles north-east of the centre. Nearby you will also find Scrabster Castle (2.1 miles north) and Dunbar Hospital (0.9 miles north). Green spaces nearby include Loch Calder.
Looking after it afterwards
Aftercare is simple:
- Sort the mastic before the decorators arrive
- Avoid patching sand mastic with silicone
- Check the mastic when you check the paintwork
- Keep sills and gutters clear so water drains away
Look at the mastic when you look over the windows. Catching cracks early keeps repairs small.
Small cracks are a sign the mastic is ageing. It’s easier to renew it before it drops out.