East Ayrshire · Scotland
New Cumnock Window Mastic
Window mastic in New Cumnock from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Hard, cracked sealant around windows
- Draughty joints inside around the window
- Cracked sealant at the sill ends
Window mastic for homes and businesses in New Cumnock
Whether it’s one leaking patio door or every frame on the house, you’ll get a clear quote before work begins. To get one, send an email to info@mrmastic.co.uk with the number of frames and any access details for window mastic in New Cumnock. We’re often asked to deal with water coming in at the bottom corners of a door and old mastic that has gone black or come away, on composite doors, uPVC windows and window sills.
Many older Scottish homes still have timber windows set into stone walls. The sealant has to suit the stone, which rules out acetoxy silicones that can mark or attack it.
The work is covered for a year after we finish. If there’s a problem with it, please send an email to info@mrmastic.co.uk.
- Place
- New Cumnock (KA18)
- Region
- East Ayrshire
- Guarantee
- 12 months on all our work
- Price
- A clear price before we start
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
What we cannot put right
In fairness, some problems need a different trade:
- Draughts through the window seals rather than the frame
- Broken hinges, locks or handles
- A failed sealed unit that has misted up
If in doubt, drop us a line at info@mrmastic.co.uk and we’ll say what we think.
Where we work in New Cumnock
- Aluminium frames
- Patio & French doors
- Timber windows & doors
- Composite doors
- Window sills
- uPVC windows
Common questions in New Cumnock
I let a flat near New Cumnock station. Can you help?
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 give you a clear price.
Is New Cumnock within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers the whole of Scotland. Let us know about access, parking and anything unusual about getting there when you book.
Are you fully insured?
Yes. Full insurance covers our work, and we can confirm the details when we quote.
Do I need to be at home?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
Should I try DIY first?
Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. If it does not work out, we can redo it.
What information do you need?
Let us know what needs doing and where, with photos by email if possible. If we need more, we’ll ask.
How many windows can you do in a day?
That depends on the number of frames, how they’re reached and the state of the old mastic. We’ll tell you how long your job needs when we quote.
Can you do upstairs windows?
Yes, as long as they can be reached safely. Let us know about access when you ask for a quote and we will plan for it.
Windows and doors in New Cumnock
Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that. The west of Scotland is wetter than the east, which means the mastic around window and door frames has to cope with a lot of rain.
Homes close to Martyrs Parish Church include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. Letting a property close to New Cumnock station? Then cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
New Cumnock is about 18 miles east of Ayr, in East Ayrshire. For window mastic in and around New Cumnock, it’s easy to get a quote: please email us at info@mrmastic.co.uk. We’re based in Crawley and cover East Ayrshire. Across East Ayrshire, we cover 53 places, New Cumnock among them. We also work in Glasgow, about 32 miles from New Cumnock.
All of KA18 is within our area for window mastic, from the main roads to the quietest streets. You will find streets such as Dalhanna Drive, Redree Place and Loch Browan Crescent. With the A76 and B741 close by, New Cumnock is simple for us to get to for window mastic. Other places close to New Cumnock include Mansfield (1 mile north), Pathhead (1 mile north), Bankglen (1 mile west), Craigens (4 miles north-west) and Netherthird (5 miles north-west). Within a short drive, we also cover Cumnock (5 miles north-west), Mauchline (12 miles north-west), Auchinleck (7 miles north-west), Catrine (10 miles north-west), Muirkirk (10 miles north-east) and Tarbolton (15 miles north-west).
Near you in New Cumnock
For rail, the closest station is New Cumnock station, roughly 0.7 miles north of the centre. Other landmarks nearby include Cumnock Castle (0.5 miles north) and East Ayrshire Community Hospital (5.5 miles north-west). Not far away are Blackcraig Hill and Loch o' th' Lowes.
How the job changes by surface
Timber windows & doors
Where timber has rotted at the joint, it needs repairing first. If we find rot, we will tell you before going ahead, as a joiner will need to deal with it.
Aluminium frames
Aluminium needs a sealant that bonds to coated metal and we avoid acetoxy silicones, which can react with some metals. Neutral-cure sealant is the safe choice.
The process
At the end, we look at the finished work together and explain the cure time. The visit itself usually takes a morning for a couple of windows and a door, depending on the size of the job. Outside jobs in New Cumnock need a dry day, because sealant won’t bond to a wet joint, so external jobs may need to move if the day turns wet. Indoor work goes ahead whatever the weather.
- We check how each frame can be reached safely.
- All the failed sealant is cut away, along with any loose debris.
- The surfaces are cleaned and left dry.
- Deep voids are backed, then the sealant is gunned in.
- We tool the joint so water runs off, then clear up.
Getting ready for the visit
- Let us know about parking restrictions
- Mention any leaks or damp you’ve noticed
- Tell us about access, such as stairs, a lift or high-level joints
Ask for a quote
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we will talk you through the work and send you a clear quote.
Read more
Also in New Cumnock
DIY sealant or a professional job?
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
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, then guaranteed for a year.
Keeping the joints in good condition
Simple care keeps the joints in good condition. We recommend:
- Paint up to the joint, not over it
- Use gentle cleaners on frames and sealant
- Keep drainage slots and sill grooves clear
- Look round the frames every year or so
Have a look at the joints once a year, ideally after winter. Cracks and lifting edges are easy to spot early.
On timber windows, water behind the joint can lead to rot. Rotten timber needs a joiner, not a sealant, so early resealing is worth it.
Quotes for window mastic in New Cumnock
Jobs vary more than people expect. The main factors:
- Whether the work is at height
- The product the joint needs
- The number and length of the joints
- How many rooms, windows or areas are involved
Leaving a failed joint normally makes the job bigger, not smaller, as water and mould keep getting in. If you’re unsure, email us at info@mrmastic.co.uk for an honest opinion and a quote.
What we need to know
There’s no need for technical detail. It helps if you can tell us:
- If someone has resealed it before
- If it’s domestic, commercial or a hotel
- Access, such as stairs, a lift or height
- Photos by email, if that’s easy
Need a quote? Please email us at info@mrmastic.co.uk and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.
Landlords, agents and businesses in New Cumnock
From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. We can quote for more than one property at once.