Glasgow · Scotland
Sand mastic for sash & case windows in Kennishead, Glasgow
Problem with your window and door surrounds in Kennishead? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Tired mastic found when preparing windows for paint
- Mastic round period door frames that has failed
- Cement or filler used on old window joints that has cracked
How the job changes by surface
Sash and case windows
On a sash window, the mastic joint shows on the outside, so a neat, even finish matters.
Period and listed homes
On a listed home or in a conservation area, the right material matters. Sand mastic is often the preferred finish.
Sand mastic in Kennishead, done properly
Old sand mastic cracks, crumbles and falls out over time and gaps open up round the frame. Renewing it closes the gap so the surround looks right again. If you are dealing with patchy fillers round a sash window and draughty sash windows at the surround, we can help, on stone surrounds, timber door frames and brick reveals alike.
Scotland’s cities are full of stone-built tenements and terraces, in sandstone or granite. Stone needs a sealant that suits it, so acetoxy silicones, which can attack some stone, are best avoided.
A 12-month guarantee comes as standard, so you are not left on your own once the job is done.
- Where
- Kennishead (G46, G43, G53)
- Region
- Glasgow
- Guarantee
- A year, on every job
- Price
- A clear price before we start
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Kennishead homes and the weather
Many older homes in Scotland have sash and case windows, often pointed into the wall with traditional sand mastic. Glasgow’s tenements are largely red and blond sandstone, and sandstone is porous, so any sealant against it has to be one that will not stain or attack it.
Historic houses such as Pollok House, about 1 mile north, show how far back building around Kennishead goes, and older homes nearby need a sealant that suits their walls. For site and facilities teams at buildings such as Hillpark Secondary School, larger buildings have plenty of frames, and the mastic around each one ages. Rented homes near Kennishead station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out.
Kennishead is about 2 miles north-west of Giffnock, in Glasgow. For sand mastic in and around Kennishead, please email us at info@mrmastic.co.uk for a quick quote. We cover Glasgow from our Crawley base. Kennishead is one of 183 towns and villages in Glasgow where we work.
We work across the G46, G43 and G53 postcode area for sand mastic. That includes homes and businesses on Brent Road, Main Street and Kilmuir Road and the roads around them. We also cover the places around Kennishead: Carnwadric (1 mile south), Arden (1 mile south-west), Eastwood (1 mile east), Cowglen (1 mile north-west) and Mansewood (1 mile east). Further out, we also cover Glasgow (3 miles north-east), Hillhead (4 miles north), Dowanhill (5 miles north), Woodlands (4 miles north-east), Woodside (5 miles north-east) and North Kelvinside (5 miles north).
Near you in Kennishead
Typical jobs here are in homes near Rouken Glen, among other places. Kennishead has its own railway station: Kennishead station. Well-known places in the area include Silverburn Shopping Centre (0.9 miles north-west) and The Open Museum (1.6 miles west). Open spaces near Kennishead include Cathkin Braes.
Towns and villages near Kennishead
Also in Kennishead
What affects the quote in Kennishead
Your quote is based on your job. We take into account:
- When we can work, for business premises
- Access and height
- Whether there’s mould to deal with
- The product the joint needs
The cost depends on the size of the job, how much old material has to come out and access to the work. We give a clear quote before we start, so you know where you stand.
Helping us quote
There’s no need for technical detail. It helps if you can tell us:
- A few pictures by email, if you can
- The type of property
- Any access issues, like height or stairs
- The problem you’ve noticed
We quote each job on its own, so the first step is telling us about yours. Simply email us at info@mrmastic.co.uk and describe the job.
Should I try it myself first?
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions.
How to look after the new joints
So the new joints stay in good condition:
- Have rotten timber repaired before new mastic goes in
- Ask us before painting near the mastic
- Find out about consent before window work on a listed home
- Keep sills and gutters clear so water drains away
Leave the new mastic alone while it firms up. It forms a skin fairly soon but needs longer to fully harden.
Gaps round a sash box let in draughts and rain. The longer it’s left, the more the joint opens as more mastic falls out.
Kennishead questions
Who arranges sealant work on the shared parts of a tenement in Kennishead?
It normally goes through the owners together, or through the factor if the building has one. The Tenements (Scotland) Act 2004 covers the common parts where the deeds don’t, and we can quote for the factor or the owners directly.
Can you help a landlord with a rental near Kennishead station?
Yes, rental work is part of what we do. You can email us at info@mrmastic.co.uk with the address and a few details, and we’ll give you a fixed price before any work starts.
How long does sand mastic take to harden?
It forms a skin fairly soon, then hardens over a longer period. The weather and joint depth both affect it.
Are you insured?
Yes. We’re fully insured, and we have been doing sealant work for more than 20 years.
Are you ARBOMaster approved?
Yes. We are an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.
Do you do commercial work?
Yes. Hotels, offices and other businesses use us, and we are fully insured.
What do you put in the joint?
It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.
Can you match the sealant colour?
Usually, yes. Sealants come in white, clear, grey and other colours for many products, and we will agree it with you first.
Honest limits
We’d rather tell you now than do work that will not last, so these are the limits:
- Masonry that needs repairing
- Decisions on consent for listed homes
- Sash cords, weights and draught-proofing of the sashes
If you are not sure, just send an email to info@mrmastic.co.uk and we will give you a straight answer before you book.
Surfaces we seal
- Sash and case windows
- Period & listed homes
- Brick reveals
- Timber door frames
- Stone surrounds
- Tenement windows
What happens on the day
We bring everything the job needs with us, so you don’t need to buy or prepare anything. After a quick look at the joints together, we protect the area and start. Most jobs take anything from a few hours to a full day, depending on how many windows. For a tenement in Kennishead, work inside your flat is between us and you, while shared parts may need the factor or neighbours to agree. Tell us which applies when you book.
- We check each window surround and the condition of the joint.
- The joint is raked out and cleaned.
- We fill deep gaps so the new mastic is not too thick.
- We point the joint with sand mastic by hand.
- We finish the mastic to a tidy line.
Getting ready for the visit
- Mention any leaks or damp you’ve noticed
- For indoor joints, keep the area dry beforehand if you can
- Keep pets and children clear of the area while we work
Get a quote
If you’re in Kennishead and need sand mastic, send an email to info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.
Advice
What happens if it’s left?
A silicone bead can be quicker, but on period stone or brick it often looks out of place. Sand mastic is the traditional material and finishes neatly against the masonry. In a Scottish city tenement, failed sealant affects more than one flat: water can reach the flat below, and gaps in shared walls or fire-stopping affect the whole stair.
There are no prices on our website, because each job is priced on what it involves. For a quick quote, please drop us a line at info@mrmastic.co.uk.
Why us?
- 20+ years of sealant experience
- 4.9 on Google from 180+ five-star reviews
- Arbo and Everbuild products
- Every job guaranteed for a year
See our cost guide and what customers say.