Edinburgh · Scotland
Bonaly Window Mastic
Window mastic in Bonaly from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Leaking joints at the ends of sills
- Rushed sealant from a window installation
- Sealant in the wrong colour for the frame
Landlords, agents and businesses in Bonaly
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.
Letting agents and landlords in Bonaly can book us as well as homeowners. Sealant work between tenants keeps a property looking cared for before the next move-in.
Window mastic in Bonaly, done properly
Mr Mastic’s applicators have more than 20 years’ experience with window and door sealants. We are fully insured ARBOMaster approved applicators, and every job is covered by a 12-month guarantee. If you have untidy mastic left by window fitters and leaking joints at the ends of sills, we can help, on uPVC windows, aluminium frames and window sills alike.
Across smaller places in Scotland, homes range from stone and harled cottages to newer houses, many standing in the open. Wind-driven rain finds any gap around a frame or sill, so the mastic there works hard.
Our work is backed for twelve months.
- Location
- Bonaly (EH13)
- Region
- Edinburgh
- Guarantee
- 12 months on all our work
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
What sealant work can’t fix
We’ll always be straight with you, so here’s what sealant can’t fix:
- A door that needs adjusting, rehanging or new seals
- Broken hinges, locks or handles
- Rotten timber, which needs a joiner first
If you are not sure, just send an email to info@mrmastic.co.uk and we will give you a straight answer before booking.
Where we work in Bonaly
- uPVC windows
- Timber windows & doors
- Composite doors
- Aluminium frames
- Window sills
- Patio & French doors
Quotes for window mastic in Bonaly
You will get a clear quote before work begins. It’s based on:
- How much old sealant there is and how hard it is to remove
- Working hours on commercial sites
- Which sealant suits the joint
- The size of the job
What it costs depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. You’ll have a clear quote before any work starts.
Asking for a quote
To help us quote quickly, please include:
- Photos by email, if that is easy
- The type of property
- What’s wrong with the joints now
- Any previous sealing or DIY work
To get a quote, email us at info@mrmastic.co.uk with the location and a short description of the problem. You’ll have a clear quote before any work starts.
Common questions in Bonaly
Do you cover smaller places like Bonaly?
Yes, we do. We work across all of Scotland, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Do you cover Bonaly for window mastic?
Yes. Our work covers the whole of Scotland, and Bonaly is part of that. Just drop us a line at info@mrmastic.co.uk with a few details of the job.
Is the work guaranteed?
Yes. Each job is covered for 12 months, inside or out.
Will resealing my frames help with draughts?
Often, yes. The gap between frame and wall is a common source of draughts, and sealing the inside and outside joints closes that path.
I rent my home. Can I book you?
We can work for tenants, landlords or agents. Get your landlord’s agreement first.
Are you insured?
Yes. Full insurance covers our work, and we can confirm the details when we quote.
Do you remove the old sealant?
Yes. All of the old material is cut out and the joint cleaned before applying anything new.
Does someone need to be in?
For indoor joints, yes, someone needs to let us in. Once we’ve agreed the job, you don’t need to watch us work.
Should I try it myself first?
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
A DIY attempt does not rule out a professional job. We remove it and do the joint properly.
Surface by surface
Patio & French doors
Door frames take knocks and movement every time the doors are used. A flexible sealant copes with that.
uPVC windows
The frame is cleaned with a product that won’t harm the plastic, then the new bead is laid against the frame and the wall and tooled smooth.
The process
There’s no need to move everything out before we come, only the area right around the joints. We protect the rest, and the work takes anything from an hour or two to a full day, depending on how many frames there are in most cases. Somewhere like Bonaly may be a longer drive, and the journey is planned ahead. Mention tracks, gates, ferries or anything else about the route.
- First, we go round the frames with you and agree the list.
- We remove the old mastic and clean the frame edge and wall.
- Where the gap is deep, backing rod goes in first.
- A flexible exterior sealant is applied in a colour to suit the frame.
- Every joint is tooled smooth and checked before we leave.
How to prepare
- Mention any tricky access
- Clear items away from the joints we are working on
- For business premises, tell us about site rules or sign-in
Get a quote
For window mastic in Bonaly, email us at info@mrmastic.co.uk. Tell us what the problem is and where, and you’ll get a clear quote before work begins.
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Nearby places to Bonaly
Other services in Bonaly
Window mastic in Bonaly: local notes
Many older homes in Scotland have sash and case windows, and the joint between the box frame and the stone or render is traditionally pointed with sand mastic. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and sound outside sealant is part of that.
For site and facilities teams at buildings such as Army School of Bagpipe Music and Highland Drumming, larger buildings have plenty of frames, and the mastic around each one ages. Homes close to Colinton Parish Church include some older properties, and the joint between an old wall and a newer frame is generally the first place rain gets in. Letting a property close to Kingsknowe station? Then renewing tired window mastic between tenants heads off draught and damp complaints.
Bonaly is about 3 miles south-west of Merchiston, in Edinburgh. Whether you’re in the middle of Bonaly or further out, window mastic is available for homes and businesses alike. Our area takes in 175 places across Edinburgh.
Jobs for window mastic in EH13 is quoted and booked the same way as anywhere else. We cover properties on Bonaly Road, Bonaly Avenue and Munro Drive. We also cover Torphin (1 mile west), Swanston (2 miles east), Milton Bridge (4 miles south-east), Penicuik (5 miles south) and Silverburn (5 miles south). Within a short drive, we also cover Edinburgh (4 miles north-east), Leith (7 miles north-east), Bonnington (6 miles north-east), Greenside (5 miles north-east), Broughton (5 miles north-east) and Bellevue (5 miles north-east).
Near you in Bonaly
Typical jobs here are in homes near Juniper Green Parish Church and Firrhill High School and the streets around them. The closest station to Bonaly is Kingsknowe station, roughly 1.6 miles north. Nearby you will also find War Poets Collection (2.3 miles north-west) and Craiglockhart Hydropathic (1.7 miles north-east). Not far away are White Hill and The New Leaf Co-op.
Aftercare tips
To keep the joints looking good and working properly:
- Keep paint and stain on wooden frames in good order
- Clear any debris from frame drain holes
- Don’t aim a pressure washer at the joints
- Paint up to the joint, not over it
Timber frames need their paint kept up, since wood that gets wet swells and shrinks more. Keep paint off the silicone itself.
Water gets in quietly when mastic fails. Often the first sign is a damp patch inside or flaking paint on the reveal. Early resealing stops it reaching that point.