Angus · Scotland
Window & door mastic in Letham, Angus
Window mastic for Letham, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Cracked or shrunken mastic around the frame
- Cold air getting in at the frame edge
- White mastic on grey or black frames
About our window mastic in Letham
Homes in Letham have every kind of window: from uPVC casements to timber and aluminium, plus patio doors, French doors and sills. Each gets a sealant chosen for the frame and the wall it meets. If you have water coming in at the bottom corners of a door and white mastic on grey or black frames, we can help.
Many older Scottish homes still have timber windows set into stone walls. Those suit a traditional sand mastic or a neutral-cure sealant, not an acetoxy silicone that can attack some stone.
Every job is covered by a 12-month guarantee.
- Place
- Letham (DD8)
- Wider area
- Angus
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Landlord and commercial work in Letham
If you manage several properties in or around Letham, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs, and photos by email help.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we’ll give you a quote.
What window mastic looks like in Letham
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. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that.
Around Letham, as everywhere, window mastic is only as good as the preparation behind it. Homes close to Old Church include some older properties, and the joint between an old wall and a newer frame is usually the first place rain gets in.
Letham is about 5 miles east of Forfar, in Angus. Whether you’re in the middle of Letham or further out, we cover window mastic for every kind of property, from flats and houses to offices and hotels. We cover 40 towns and villages across Angus, from the larger towns to small villages. We also work in Dundee, about 13 miles from Letham.
Work in DD8 works the same way as everywhere else we cover. You’ll find streets such as The Square, Kirkgait and Gardyne Street, all of which we cover. We also cover the places around Letham: Craichie (2 miles south-west), Tulloes (2 miles south-west), Hillend (2 miles west), Lownie Moor (3 miles west) and Kingsmuir (3 miles west). Within a short drive, we also cover Arbroath (8 miles south-east), Forfar (5 miles west), Carnoustie (9 miles south), Kirriemuir (9 miles west), Brechin (8 miles north-east) and Hunter's Town (9 miles south). Letham is one of the larger places we cover in Angus.
Around Letham
Other landmarks nearby include Whitehills Hospital (4.1 miles west) and Balgavies Castle (1.9 miles north). For a walk, there’s Balgavies Loch.
FAQs for Letham
Is there a guarantee on window mastic in Letham?
All our work, in Letham and everywhere else, comes with a 12-month guarantee. We are fully insured, and an ARBOMaster approved applicator.
Can you do window mastic in Letham?
Yes, Letham is within the area we cover. We work across all of Scotland. You can drop us a line at info@mrmastic.co.uk and let us know what needs doing.
Is there any odour?
Possibly a little. It fades as the sealant cures, and ventilation helps.
How do I get a quote for window mastic in Letham?
The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote and we will talk you through it.
Do you hold any approvals?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
Do you work on first-floor windows?
Yes, where they can be reached safely. Tell us about access when you get in touch so we can plan the job.
Can landlords and businesses book you?
Yes, we do. We work in homes, commercial premises and hotels.
What should I tell you?
A short description and the location, plus pictures if you have them. We’ll ask anything else we need to know.
Why deal with it now?
Redecorating is a good moment to renew the mastic. A clean new bead makes new paint or render look finished. Out of town in Scotland, exposed walls take a lot of weather, and once water gets behind a failed joint, damp in stone or harled walls is slow to dry out.
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.
Why book with us
- 180+ five-star Google reviews
- Over 20 years’ experience
- Anti-fungal sanitary silicone in wet areas
- We never seal over old sealant
Take a look at our cost guide and our reviews.
Also in Letham
Quotes for window mastic in Letham
Your quote is based on your job. We take into account:
- The number and length of the joints
- Whether there’s mould to deal with
- Whether old sealant or filler has to be cut out
- The type of sealant required
What it costs depends on how much there is to do, how much old material has to come out and how easy the joints are to reach. We give a clear quote before work begins, so you know where you stand.
What to tell us for a quote
When you contact us, these details help:
- The rough size of the job
- If someone has resealed it before
- What’s wrong with the joints now
- If it’s domestic, commercial or a hotel
Need a quote? Please drop us a line at info@mrmastic.co.uk with a few details. We’ll explain what we’d do and give you a clear quote before work begins.
When something else is needed
We’d rather tell you now than do work that will not last, so these are the limits:
- Penetrating damp from a failed cavity tray or render
- A frame that has rotted at the joint
- Misting between the panes of a double-glazed unit (that needs a new unit)
If in doubt, email us at info@mrmastic.co.uk and we will say what we think.
Joints and surfaces we work on
- uPVC windows
- Aluminium frames
- Patio & French doors
- Window sills
- Composite doors
- Timber windows & doors
What we do, step by step
When we get to you, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. Most jobs then take most of a day for a typical house, less for a few frames. Outdoor work around Letham depends on the weather, as sealant needs a dry surface, so external jobs may need to move if the day turns wet. Work indoors isn’t affected.
- First, we confirm safe access to each frame.
- Old, cracked mastic is removed completely, along with any loose debris.
- 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.
- We tool the joint so water runs off, then clear up.
Preparing for the visit
- Keep pets and children clear of the area while we work
- Let us know about stairs, lifts or work at height
- Mention any sign-in or site rules at work premises
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 photos if that’s easy.
Related advice
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 look for the cause first.
Timber windows & doors
Timber moves with moisture as well as heat, so the joint must stay flexible. We seal onto sound, dry paintwork or timber.
Looking after it afterwards
Good habits help new joints last longer. A few tips:
- Air rooms to keep condensation down around windows
- Walk round the house once a year and look at the joints
- Wash the frames with mild soapy water
- Repaint timber before it’s bare
A yearly look round the frames is enough. Small splits are simple to catch before they leak, and if anything looks wrong, just email us at info@mrmastic.co.uk.
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.