Perth and Kinross · Scotland
Window & door mastic in Gilmerton, Perth and Kinross
Problem with your window and door frames in Gilmerton? We remove the old material, prepare the joints and seal them properly.
- White mastic on grey or black frames
- Untidy mastic left by window fitters
- Whistling draughts around closed windows
How we handle window mastic in Gilmerton
If you can feel air around a shut window, the gap is often at the frame. Resealing that joint can make a room feel noticeably less draughty and quietens the whistle on windy days. If the draught is through the window seals instead, we’ll tell you. If you’re dealing with water coming in at the bottom corners of a door and cold air getting in at the frame edge, we can help, whatever the surface.
Mastic can only go onto a dry joint, so outside work in Gilmerton depends on the weather. Let us know about access to every frame, including any upstairs.
Whatever the size of the job, it’s backed by our one-year guarantee in Gilmerton and across Perth and Kinross.
- Where
- Gilmerton (PH7)
- Region
- Perth and Kinross
- Cover
- One year on every job
- Quote
- A clear price before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
DIY sealant or a professional job?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Gilmerton: your questions answered
Can you do window mastic in Gilmerton?
Yes. Our work covers the whole of Scotland, and Gilmerton is part of that. Just email us at info@mrmastic.co.uk with a few details of the job, and we will give you a clear quote.
What guarantee comes with window mastic in Gilmerton?
Every job comes with our 12-month guarantee, wherever it is. We are also fully insured and ARBOMaster approved.
How long should I leave it?
Many sealants skin over quickly but take longer to cure fully. We will tell you how long to leave the joint before we leave.
Where do you work from?
We work from Crawley. Our applicators cover Gilmerton.
How much does window mastic cost in Gilmerton?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. You’ll get a clear quote before work begins.
Do you remove the old sealant?
Yes, every time. New silicone doesn’t stick to old silicone, so the joint is cleaned back first.
Do you work for hotels and businesses?
Yes. We work in offices, washrooms, hotels and other commercial premises. We can talk about working times when we quote.
What should I tell you?
Where the job is, what the problem is and roughly how big it is. If you can, email a few photos.
Window mastic in Gilmerton: local notes
Sash and case windows are common in older Scottish homes, often pointed into the wall with traditional sand mastic. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that.
In and around Gilmerton, as anywhere, good window mastic starts with a clean, dry, properly prepared joint.
Gilmerton is about 14 miles west of Perth, in Perth and Kinross. Homes, rented property, offices and hotels in Gilmerton can book us for window mastic, old or new, large or small. The work is guaranteed for a year. Gilmerton is one of 107 places in Perth and Kinross where we work for window mastic. Our Dundee page covers work nearby.
Postcode districts we cover here for window mastic: PH7. Whether your property is on Grahame Terrace and Perth Road or anywhere close by, our applicators can take on the job. Neighbouring places we cover for window mastic include Crieff (2 miles south-west), St David's (4 miles south-east), Muthill (4 miles south), Madderty (4 miles south-east) and Tullibardine (6 miles south). Larger places within reach include Perth (14 miles east), Auchterarder (8 miles south-east), Letham (13 miles east), Tulloch (13 miles east), Oakbank (13 miles east) and Hillyland (12 miles east).
Near you in Gilmerton
A little further out are Crieff and Strathearn Museum (1.9 miles south-west) and Castle Cluggy (2.9 miles west). For a walk, there’s Loch Monzievaird.
Landlord and commercial work in Gilmerton
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we will give you a quote.
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.
What happens if it’s left?
Redecorating is a good moment to renew the mastic. A clean new bead makes new paint or render look finished, and it’s easier while the walls are being worked on anyway. Out of town in Scotland, exposed walls take a lot of weather, and damp in stone or harled walls takes a long time to dry once water gets behind a joint.
The cost reflects the work involved, not guesswork. That is why we ask about the job first and give you a clear quote before any work starts.
What you get with us
- Full insurance on every job
- Sealant colour chosen to suit
- Arbo and Everbuild products
- Domestic, commercial and hotel work
See our cost guide and what customers say.
How it works
When we get to you, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. After that, the work takes a few hours for a few frames, or a day or more for a whole house. Outdoor work around Gilmerton 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.
- First, we confirm safe access to each frame.
- Old, cracked mastic is removed completely.
- The surfaces are cleaned and left dry, 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.
How to prepare
- Tell us about any previous sealing or DIY attempts
- Where the joints are inside, avoid wetting them before we arrive
- Mention any sign-in or site rules at work premises
Getting a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we will talk you through what we’d do. When it suits you, send an email to info@mrmastic.co.uk.
Related advice
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Also in Gilmerton
What affects the quote in Gilmerton
Every job gets its own quote. These are the things that affect it:
- The amount of work
- Any mould that needs treating
- When we can work, for business premises
- Whether old sealant or filler has to be cut out
Leaving a failed joint usually makes the job bigger, not smaller, because water and mould keep working on it. If you’re unsure, send an email to info@mrmastic.co.uk and we will give you an honest view and a quote.
Asking for a quote
When you call or email, it’s useful to know:
- Any previous sealing or DIY work
- The type of property
- Any access issues, like height or stairs
- Photos by email, if that is easy
To get a quote, send an email to info@mrmastic.co.uk with the location and a short description of the problem. You’ll have a clear quote before we start.
What we can’t put right
New sealant can’t fix everything, and we will tell you before any work starts. Sealant won’t put right:
- Faulty window hardware
- A door that needs adjusting, rehanging or new seals
- Misting between the panes of a double-glazed unit (that needs a new unit)
If you are not sure, just email us at info@mrmastic.co.uk and we’ll give you a straight answer before booking.
Surfaces we seal
- Aluminium frames
- Composite doors
- Window sills
- uPVC windows
- Timber windows & doors
- Patio & French doors
Signs you need window mastic in Gilmerton
Every frame moves through the day. A plastic or aluminium frame lengthens in sunshine and shortens as it cools, while the brick or render around it hardly moves. If the sealant can’t stretch, it splits.
Look out for these signs:
- Cracked sealant at the sill ends
- Gaps between the frame and the inside reveal
- Black, perished sealant on frames
- White mastic on grey or black frames
In the older streets around Gilmerton Church House, the joint between an old wall and a newer frame is usually the first place rain gets in.
Before booking anyone
- How the surfaces are prepared before sealing
- Whether the sealant suits the joint
- How long to leave it before use
- How the colour is chosen