Angus · Scotland
Window & door mastic in Lunanhead, Angus
Mastic around window and door frames, sills and patio doors in Lunanhead, with a 12-month guarantee on every job. Call for a quick quote.
- Cracked internal joints between frame and plaster
- Old mastic that has gone black or come away
- Cracked or shrunken mastic around the frame
Lunanhead questions
What guarantee comes with window mastic in Lunanhead?
Every job comes with our 12-month guarantee, wherever it is. We are also fully insured and ARBOMaster approved.
Is Lunanhead within the area you cover?
Yes, Lunanhead is covered. Our work covers the whole of Scotland, and smaller places are part of that. Longer journeys are simply planned in advance.
Do you seal inside as well as outside?
Yes. The outside joint keeps the weather out, and the inside joint stops draughts and finishes the reveal. We can do either or both.
I rent my home. Can I book you?
We are happy to deal with the tenant, landlord or agent. Get your landlord’s agreement first.
Do you work for landlords and businesses?
Yes, we do. Domestic, commercial and hotel work are all part of what we do, and we are fully insured.
Are you insured?
Yes. We’re fully insured, and we can confirm the details when we quote.
Can new window sealant be painted?
Most silicone can’t be painted. If you plan to paint, tell us first and we can use a paintable sealant where it suits the joint.
What sealant do you use?
Products from Arbo and Everbuild, among others, picked for each joint. We explain the product when we quote.
Window mastic in Lunanhead, done properly
The mastic around a window or door seals the gap between the frame and the wall. When it cracks, hardens or pulls away, draughts and rain get in. The old mastic is removed and the joint resealed with a flexible exterior sealant. We work on aluminium frames, timber windows & doors and composite doors, and the jobs we see most are cracked sealant at the sill ends and mastic that’s falling out in pieces.
Older stone-built homes in Scotland often have sash and case or timber windows set in stone. The sealant has to suit the stone, which rules out acetoxy silicones that can mark or attack it.
Your job is guaranteed for a year, as with all our work.
- Place
- Lunanhead (DD8)
- Wider area
- Angus
- Cover
- One year on every job
- Quotes
- A clear price before we start
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Windows and doors in Lunanhead
Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and failed outside joints work against that. 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.
For an older house near a landmark such as Lowson Memorial Church, the joint between an old wall and a newer frame is normally the first place rain gets in.
Lunanhead is about 1 mile north-east of Forfar, in Angus. Wherever you are in the DD8 postcode area, our applicators can take on window mastic. Lunanhead is one of 40 places in Angus where we work for window mastic. Our Dundee page covers work nearby.
Here we cover the DD8 postcode area for window mastic. That includes homes and businesses on Carseview Terrace, Muirlands Court and Old Brechin Road. Nearby, we also carry out window mastic in Forfar (1 mile south-west), Kingsmuir (2 miles south), Lownie Moor (2 miles south), Hillend (2 miles south) and Padanaram (3 miles west). Larger places within reach include Arbroath (12 miles south-east), Carnoustie (12 miles south-east), Kirriemuir (6 miles west), Brechin (9 miles north-east), Hunter's Town (12 miles south-east) and Gardynebourg (12 miles south-east).
Local landmarks in Lunanhead
We work in homes and buildings around Guthrie Park and the streets around them. Well-known places in the area include Forfar Castle (1.5 miles south-west) and Meffan Museum and Art Gallery (1.5 miles south-west). The countryside around Lunanhead includes Loch Fithie.
Work for landlords, hotels and businesses
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
Letting agents often deal with us directly. Tell us the address, the job and how access works and we’ll quote.
How we quote for window mastic
There’s no set price list, because no two jobs are the same. What we look at:
- When we can work, for business premises
- The product the joint needs
- How many rooms, windows or areas are involved
- The amount of work
A failed joint rarely gets cheaper to fix by waiting. If you are unsure, send an email to info@mrmastic.co.uk and we’ll give you an honest view and a quote.
Helping us quote
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- Any access issues, like height or stairs
- Roughly how big the job is
- Whether it has been sealed before
- A few photos by email, if you can
To get a quote, send an email to info@mrmastic.co.uk and tell us where the job is and what the problem looks like. You’ll have a clear quote before any work starts.
Looking after it afterwards
A little care helps the new joints last. Our advice:
- Keep timber frames painted
- Check the mastic once a year
- Don’t paint over the silicone
- Don’t aim a pressure washer at the joints
Have a look at the joints once a year, ideally after winter. Small splits are simple to catch before they leak.
Leaks usually show up in wet, windy weather, but sealant goes on best when frames and walls are dry. Dealing with it when you first notice a crack avoids chasing leaks through the wet months.
Should I try it myself first?
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
If you are set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it doesn’t work out, we can still put it right.
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 most of a day for a typical house, less for a few frames. Somewhere like Lunanhead may be a longer drive, and the journey is planned ahead. Mention tracks, gates, ferries or anything else about the route.
- We check each frame and agree which ones need doing.
- Next the failed sealant is cut away and the joint cleaned.
- Deep gaps are filled with backing rod to set the depth.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- We clear up and check every joint is fully closed.
Before we arrive
- Mention any tricky access
- Where the joints are inside, avoid wetting them before we arrive
- Clear items away from the joints we’re working on
How to get a quote
We quote each job on its own, so the first step is telling us about yours. Just email us at info@mrmastic.co.uk with the details and send photos if you have them.
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What else we do in Lunanhead
Common problems we fix in Lunanhead
Some failures date back to when the windows were fitted. Mastic laid onto dusty, damp or crumbling surfaces didn’t grip properly, so it comes away long before its time.
These are the problems we’re asked about most:
- Cracked internal joints between frame and plaster
- Old mastic that has gone black or come away
- Leaking joints at the ends of sills
- Hard, cracked sealant around windows
For site and facilities teams at buildings such as Forfar Academy, larger buildings have plenty of frames, and the mastic around each one ages.
Before you book anyone
- What guarantee comes with the work
- Whether all the old sealant comes out first
- Which sealant they’ll use, and why
- How hidden problems are handled
What happens if it’s left?
A quick bead over the top of old mastic looks like an easy fix, but it won’t grip old, dirty sealant. It peels before long, and water still gets in behind. Proper resealing starts with removing the old joint. In an older home around Lunanhead, damp from a failed joint can get into timber and plaster.
What it costs depends on the size of the job, how much old material has to come out and how easy the joints are to reach. We give a clear quote before work begins.
What you get with us
- One-year guarantee on every job
- 4.9 on Google from 180+ five-star reviews
- Neat joints and a tidy finish
- Trusted Arbo and Everbuild sealants
Take a look at our cost guide or what customers say.