Inverclyde · Scotland
Greenock Sand Mastic
Our applicators work in Greenock on traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly and a one-year guarantee.
- Old sand mastic that has cracked, crumbled or fallen out
- Gaps round a timber door in stone or brick
- Window mastic to renew ahead of painting
About our sand mastic in Greenock
We renew sand mastic around sash windows and doors in stone and brick. Out comes the old, loose mastic, and new mastic is applied and shaped by hand. We are often asked to deal with a silicone bead on a sash window that spoils the look and gaps round a timber door in stone or brick, across period & listed homes, timber door frames and stone surrounds.
Harled walls are common in Scottish towns like Greenock, and the joint between a frame and rough harling needs a sealant that can grip and flex. A bead that sits on top of the harling rather than in the joint soon lets water in.
All of our work is guaranteed for twelve months, in Greenock and everywhere else we cover.
- Location
- Greenock (PA16, PA15, PA19)
- Region
- Inverclyde
- Cover
- One year on every job
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Should I try it myself first?
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so just mention it when you contact us.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
What the job involves on each surface
Brick reveals
Gaps between frame and brick let in rain and draughts. Renewing the mastic closes it.
Sash and case windows
The box of a sash and case window sits in the stone or brick opening. Sand mastic seals the joint round it.
Greenock: your questions answered
Is Greenock in your area for sand mastic?
Yes. We work across all of Scotland, and Greenock is part of that. Just send an email to info@mrmastic.co.uk with a few details of the job, and we will send you a clear quote.
Does the coastal weather in Greenock affect outside sealant?
Coastal homes put outside sealant through more weather than inland ones, so preparation and the right sealant matter all the more. It’s worth checking the walls that face the sea first.
What guarantee comes with the work?
Our 12-month guarantee applies to all our work.
What is sand mastic?
Sand plus a binder based on linseed oil. It’s built up in the joint by hand and shaped to suit the surround.
Can you do several jobs on one visit?
Yes, we can. More than one area can go on one quote.
How long does the job take?
Typically it takes a few hours per window, depending on the condition of the joints. Bigger jobs take longer, and we will tell you how long to expect.
How do I get a quote for sand mastic in Greenock?
We don’t publish prices, because the cost depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
Do the sealants smell?
There can be a smell while the sealant cures, which fades as it sets. Ventilation helps.
Sand mastic in Greenock: local notes
Greenock is close to 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 older windows and doors, 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.
Historic houses such as Ardgowan House, about 4.1 miles south-west, show how far back building around Greenock goes. Rented homes near Drumfrochar station change hands often, and cracked sand mastic around sash windows lets in the draughts tenants complain about. Schools such as Wellington Academy are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
Greenock is about 20 miles west of Glasgow, in Inverclyde. We carry out sand mastic for householders, landlords and businesses in Greenock, as part of our work across Inverclyde. 19 places in Inverclyde are on our list, from the larger towns to small villages. We also work in Glasgow, about 20 miles from Greenock.
We cover every part of PA16, PA15 and PA19 for sand mastic and the streets around it. Whether your property is on High Street, Main Street and Murdieston Street or a nearby road, our applicators can take on the job. You will find Greenock on the A8 and A78, so it’s easy for us to get to with everything needed for sand mastic. Neighbouring places we cover for sand mastic include Greenock West (1 mile north), Cartsdyke (1 mile east), Branchton (1 mile west), Fort Matilda (1 mile north-west) and Braeside (2 miles west). Larger places within reach include Port Glasgow (4 miles east), Kilmacolm (7 miles south-east), Mid Auchinleck (4 miles east), Inverkip (4 miles south-west), Bogston (3 miles east) and Bardrainney (5 miles east).
Landmarks near Greenock
We work in homes and buildings around The James Watt pub and Watt Library. There’s a railway station in Greenock itself: Drumfrochar station. Nearby you’ll also find McLean Museum and Art Gallery (0.6 miles north-east) and Oak Mall (0.7 miles north-east). Green spaces nearby include Lyle Hill.
How the visit works
When we get to you, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. Most jobs then take anything from a few hours to a full day, depending on how many windows. In a Scottish town like Greenock, parking is usually straightforward, though older centres can be tighter. For flats, mention the shared stair or door entry system.
- 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.
- We dress the finish so it sits neatly against the masonry.
Preparing for the visit
- Clear items away from the joints we’re working on
- Keep pets and children clear of the area while we work
- For business premises, tell us about site rules or sign-in
Getting a quote
If you’re in Greenock and need sand mastic, email us at info@mrmastic.co.uk. Tell us what the problem is and where, and you’ll get a clear quote before we start.
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What we can’t put right
Before you book, it’s worth knowing the limits:
- Sashes that rattle, stick or will not open
- Timber that has rotted
- Whether work needs listed building consent
If in doubt, send an email to info@mrmastic.co.uk and we’ll say what we think.
What we seal
- Tenement windows
- Stone surrounds
- Timber door frames
- Brick reveals
- Period & listed homes
- Sash and case windows
Landlords, agents and businesses in Greenock
We also work for property managers and facilities teams. Several sites can be quoted together, and we’re fully insured for the work.
In hotels, rooms out of use cost money, so the work can be planned room by room. We have worked in hotels as well as homes and businesses.
How to look after the new joints
To keep the joints looking good and working properly:
- Make sure water runs off the sill
- Inspect the joints round the windows every year or so
- Plan mastic work ahead of painting
- Find out about consent before window work on a listed home
Don’t touch or press the mastic while it hardens. It forms a skin fairly soon but needs longer to fully harden.
Small cracks are a sign the mastic is ageing. It’s easier to renew it before it drops out.
How we quote for sand mastic
There’s no set price list, because jobs vary so much. What we look at:
- Mould in or behind the old joints
- When we can work, for business premises
- The number and length of the joints
- Access and height
Instead of a standard rate, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What we need to know
When you contact us, it’s useful to know:
- Any access issues, like height or stairs
- A few pictures by email, if you can
- The problem you’ve noticed
- Whether it has been sealed before
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and add photos by email if you can.