East Ayrshire · Scotland
Window Mastic in Dunlop
Mastic around window and door frames, sills and patio doors for homeowners, landlords and businesses in Dunlop. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Leaking joints at the ends of sills
- Draughts coming in around windows and doors
- Old mastic that has gone black or come away
Surface by surface
Patio & French doors
Not every patio door leak is a mastic problem: blocked drain slots, worn brush seals and threshold details can let water in too. We check before we reseal.
Timber windows & doors
On period timber windows, traditional sand mastic is sometimes the better choice. We can talk through the options.
How we handle window mastic in Dunlop
Around Dunlop we seal all kinds of frames: from uPVC casements to timber and aluminium, along with patio doors, French doors and sills. The sealant is chosen to suit the frame material and the wall. If you have mastic that has split away from the wall and old mastic that has gone black or come away, we can put it right, on composite doors, timber windows & doors and window sills alike.
Mastic can only go onto a dry joint, so outside work in Dunlop depends on the weather. Tell us about access to all the windows and doors, upstairs included.
Our work is backed for twelve months, in Dunlop and everywhere else we cover.
- Location
- Dunlop (KA3)
- Region
- East Ayrshire
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Can I do it myself?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
Do you need window mastic in Dunlop?
Older frames were often sealed with products that set hard. Once it has hardened, the frame’s movement tears it from the wall, leaving a hairline gap down one side.
Signs it’s time to call us include:
- Draughts coming in around windows and doors
- Water coming in at the bottom corners of a door
- Cracked sealant at the sill ends
- White mastic on grey or black frames
Rented homes near Dunlop station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints.
What your quote should include
- What happens if they find a problem under the old sealant
- When the joint can take water or movement
- How much experience the applicator has
- The length of the guarantee
What happens on the day
On the day, there’s very little for you to do. Show us the job and we’ll take it from there. The work itself takes a morning for a couple of windows and a door. Outdoor work around Dunlop depends on the weather, as sealant needs a dry surface, so an outdoor job can move if the forecast changes. Indoor work goes ahead whatever the weather.
- We check how each frame can be reached safely.
- Old, cracked mastic is removed completely.
- Frame and wall are cleaned and must be dry before sealing, and primed where the sealant calls for it.
- Deep voids are backed, then the sealant is gunned in.
- The joint is shaped to shed water and the area tidied.
Before we arrive
- Clear the area around the work
- Mention if the joints have been sealed before
- Tell us if parking is tricky
Ask for a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we’ll explain how we’d tackle it. Whenever you’re ready, send an email to info@mrmastic.co.uk.
Read more
Honest limits
We won’t take on work that won’t last, so here’s what sealant can’t put right:
- A door that needs adjusting, rehanging or new seals
- Penetrating damp from a failed cavity tray or render
- Broken hinges, locks or handles
If you’re not sure, just email us at info@mrmastic.co.uk and we will give you a straight answer.
Joints and surfaces we work on
- Window sills
- Patio & French doors
- Timber windows & doors
- Composite doors
- uPVC windows
- Aluminium frames
Places near Dunlop
More services for Dunlop
Why act early in Dunlop
If you are painting or rendering, reseal at the same time. A clean new bead makes new paint or render look finished, and it’s easier while the walls are being worked on anyway. In an older home around Dunlop, damp from a failed joint can get into timber and plaster.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, plus any working-time requirements on site. Call for a quick quote and we will explain what it covers.
Why book with us
- An ARBOMaster approved applicator
- Full insurance on every job
- Anti-fungal sanitary silicone in wet areas
- Neat joints and a tidy finish
Read what affects the cost and our reviews.
Landlords, agents and businesses in Dunlop
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
We work for landlords and letting agents as well as householders. Sealant work between tenants keeps a property looking cared for before the next move-in.
Common questions in Dunlop
Can you help a landlord with a rental near Dunlop station?
Yes, we work for landlords and letting agents. You can drop us a line at info@mrmastic.co.uk with the address and a few details, and we’ll give you a fixed price before we start.
Do you cover smaller places like Dunlop?
Yes, Dunlop is covered. Our work covers the whole of Scotland, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Can you seal the gap between the frame and the plaster indoors?
Yes. Indoors, we seal between the frame and the plaster or reveal.
What do you put in the joint?
We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference, and we will explain our choice.
What should I tell you?
The location, the problem and the rough size of the job. Photos by email help too.
Do the sealants smell?
Possibly a little. It fades as the sealant cures, and ventilation helps.
How long will my window job take?
The work takes most of a day for a typical house, less for a few frames. Access and the amount of old mastic make the biggest difference.
Do you guarantee window mastic?
Yes. Every job comes with our 12-month guarantee, and we’re ARBOMaster approved applicators.
Frames and glazing around Dunlop
Many older homes in Scotland have sash and case windows, often pointed into the wall with traditional sand mastic. With historic houses such as Girgenti House (about 4.6 miles south-west) nearby, there’s older building stock in the area around Dunlop as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
If you live in an older home near Parish Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame. Schools such as Clandeboye School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
Dunlop is about 7 miles north of Kilmarnock, in East Ayrshire. If you need window mastic in Dunlop, it’s easy to get a quote: please email us at info@mrmastic.co.uk. We are based in Crawley and cover East Ayrshire. Dunlop is one of 53 places in East Ayrshire we cover for window mastic. For nearby work, see our Glasgow page, about 14 miles away.
All of KA3 is within our area for window mastic, from the main roads to the quietest streets. Whether your property is on Station Road, Main Street and Livingston Terrace or anywhere close by, we can help. If you are just outside Dunlop, we cover Burnhouse (2 miles west), Barony and Castle of Corsehill (2 miles south), Lugton (2 miles north), Stewarton (2 miles south) and Greenhills (2 miles west). Further out, we also cover Kilmarnock (7 miles south), Annanhill (7 miles south), Galston (10 miles south-east), Mauchline (15 miles south-east), New Farm Loch (7 miles south) and Bonnyton (7 miles south).
Around Dunlop
We work in homes and buildings around Stewarton Academy and the streets around them. Dunlop has its own railway station: Dunlop station. Nearby you’ll also find Dunlop Castle (1.1 miles east) and Stewarton Museum (2.3 miles south). Open spaces near Dunlop include Blae Loch and Dunlop Hill.