Glasgow · Scotland
Window Mastic in Govan
Mastic around window and door frames, sills and patio doors for Govan, backed by a 12-month guarantee. Call for a quick quote.
- Cracked internal joints between frame and plaster
- Mastic that has split away from the wall
- White mastic on grey or black frames
Window mastic in Govan, done properly
Every window and door frame has a gap around it, and mastic is what closes it. Once that seal fails, wind and rain find the gap. Our applicators cut it out and replace it with a flexible, weatherproof sealant. We work on aluminium frames, uPVC windows and window sills, and common reasons people get in touch are cold air getting in at the frame edge and cracked sealant at the sill ends.
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.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.
- Where
- Govan (G51, G11, G3)
- Wider area
- Glasgow
- Guarantee
- A year, on every job
- Price
- A clear price before work begins
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
What sealant work can’t fix
Honest advice matters more to us than a booking, so here’s what new sealant won’t do:
- A door that needs adjusting, rehanging or new seals
- Damp coming through the wall itself rather than the frame joint
- Broken hinges, locks or handles
If in doubt, email us at info@mrmastic.co.uk and we’ll say what we think.
Joints and surfaces we work on
- Patio & French doors
- Timber windows & doors
- Composite doors
- Aluminium frames
- uPVC windows
- Window sills
Aftercare tips
A little care helps the new joints last. We recommend:
- Keep jet washers away from the mastic
- Don’t paint over the silicone
- Ventilate rooms so frames do not stay wet inside
- Check the mastic once a year
Keep the new mastic undisturbed while it cures, following the cure time we give you. Keep jet washers away from the frames.
Water gets in quietly when mastic fails. You might not see it until plaster blows or a damp patch appears inside. Catching it early keeps the fix to a reseal.
Also in Govan
Leave it or put it right?
Getting a straight, even bead on an outside frame takes practice, especially upstairs. A professional job is cut out properly, backed where needed and finished neatly, using a product chosen for the frame and wall. In a tenement flat in Govan, a failed seal is rarely just your problem: a leak can come through the ceiling below, and gaps in shared walls or fire-rated joints matter to every flat.
No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we will explain the quote if you ask.
Why Govan customers choose us
- Experience in homes, commercial sites and hotels
- Full insurance on every job
- Sanitary silicone with an anti-fungal additive in wet areas
- Trusted Arbo and Everbuild sealants
Read our cost guide or our reviews.
What we are called out for in Govan
Water runs down the glass onto the sill, so the sill ends and the joint below the frame are common leak points. Failed sealant there lets rain into the wall or behind the frame.
Signs it’s time to call us include:
- White mastic on grey or black frames
- Rain getting in at the frame or under the sill
- Gaps where the sill meets the wall
- Hard, cracked sealant around windows
Homes close to St Mary's Church include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Comparing quotes
- Who turns up on the day
- What happens if the job turns out different
- Is VAT in the price?
- Whether the sealant suits the joint
For landlords and businesses
Hotels need rooms back in use, so we plan the work room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
What affects the quote in Govan
The price is agreed before any work begins. It’s based on:
- The size of the job
- Any mould that needs treating
- The number of rooms or windows
- Whether old sealant or filler has to be cut out
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
Helping us quote
Photos by email are helpful but not essential. Please mention:
- Photos by email, if that’s easy
- Roughly how big the job is
- Any access issues, like height or stairs
- Where the job is, and your postcode
For window mastic in Govan, 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.
Common questions in Govan
Do you work for landlords with property near Partick station?
Yes. We work for landlords and letting agents as well as homeowners, and several properties can be quoted together. You can drop us a line at info@mrmastic.co.uk with the details for a clear quote.
Can you do window mastic in Govan?
Yes. Our work covers the whole of Scotland, and Govan is part of that. Just drop us a line at info@mrmastic.co.uk with a few details of the job, and we’ll give you a clear quote.
Do you hold any approvals?
Yes. We are an ARBOMaster approved applicator.
Can you do the inside joint as well?
Yes. Outside is the weather seal; inside closes the gap to the plaster. We can do either or both.
Can new sealant go over the old?
No. The old sealant always comes out first, so the new sealant bonds properly.
Which products do you use?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We’ll tell you what we’re using and why.
What do you need from me for a quote?
The location, the problem and the rough size of the job. Photos by email help too.
Will it make a mess?
No. We protect the surfaces around the joints, and we tidy up before we go.
What window mastic looks like in Govan
Govan is in the west of Scotland, which is wetter than the east, so there’s plenty of rain for the mastic around window and door frames to keep out. Sash and case windows are common in older Scottish homes, and the joint between the box frame and the stone or render is traditionally pointed with sand mastic.
Letting a property close to Partick station? Then renewing tired window mastic between tenants heads off draught and damp complaints.
Govan is about 1 mile south of Partickhill, in Glasgow. Our applicators cover window mastic for homeowners, landlords and businesses in Govan and the surrounding area, as part of our work across Glasgow. Across Glasgow, we cover 183 places, and Govan is one of them.
We work across the G51, G11 and G3 postcode area for window mastic and the streets around it. You’ll find streets such as Govan Road, Pearce Lane and Broomloan Road, and we cover them all. If you’re just outside Govan, we cover Moorepark (1 mile south), Ibrox (1 mile south), Partick (1 mile north), Thornwood (1 mile north-west) and Linthouse (1 mile west). Larger places within reach include Calton (3 miles east), Langside (3 miles south-east), Yoker (4 miles north-west), Mount Florida (3 miles south-east), Hillpark (3 miles south) and Merrylee (4 miles south).
Near you in Govan
We work in homes and buildings around Isabella Elder Rose Garden, Glasgow University Library and St Peter's Boys School. For rail, the closest station is Partick station, roughly 0.6 miles north of the centre. Well-known places in the area include Chinatown (1.9 miles east) and Glasgow Science Centre (0.6 miles east). Not far away are Castle Hill and Kilmardinny.
How the visit works
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 a few hours for a handful of frames, longer for a whole house. Parking in city streets around Govan can be tight or controlled, so it helps to know about permits or nearby bays. For flats, mention the door entry system and any shared-stair arrangements.
- We start by checking each window and door with you.
- We remove the old mastic and clean the frame and the wall.
- Where gaps are deep, backing rod goes in first.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- Finally we tidy up and check each joint.
How to prepare
- Mention any tricky access
- Move anything stored near the joints
- Mention if the joints have been sealed before
Ask for a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and email pictures if that is easy.