South Lanarkshire · Scotland
Window Mastic in Boghead
Mastic around window and door frames, sills and patio doors for homes and businesses in Boghead and across South Lanarkshire. Fully insured, ARBOMaster approved and guaranteed for a year.
- Gaps between the frame and the inside reveal
- Rain getting in at the frame or under the sill
- Hard, cracked sealant around windows
Window mastic in Boghead, done properly
Over two decades of sealing frames has taught us which products suit which walls. We are fully insured ARBOMaster approved applicators, and every job is covered by a 12-month guarantee. We work on patio & French doors, uPVC windows and aluminium frames, and common reasons people get in touch are draughts coming in around windows and doors and hard, cracked sealant around windows.
Outdoor sealant needs a dry surface, so window work around Boghead is planned around the weather. Let us know about access to every frame, including any upstairs.
A one-year guarantee comes as standard.

- Place
- Boghead (ML11)
- Region
- South Lanarkshire
- Guarantee
- A year, on every job
- Quote
- A clear price before work begins
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Your questions about window mastic in Boghead
What guarantee comes with window mastic in Boghead?
Every job comes with our 12-month guarantee, wherever it is. We’re fully insured, and an ARBOMaster approved applicator.
Can you do window mastic in Boghead?
Yes, Boghead is within the area we cover. We work across all of Scotland. You can send an email to info@mrmastic.co.uk and tell us what needs doing, and we will give you a clear price.
I’m a tenant. Can you help?
Of course. Ask your landlord first, and we can send them the quote if that helps.
How do I get a quote for window mastic in Boghead?
The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote.
Can new sealant go over the old?
No. New silicone won’t bond to old silicone, and it traps any mould or water underneath. We remove it all first.
Are you an approved applicator?
Yes. We are approved under the ARBOMaster scheme.
Can you do the inside joint as well?
Yes, we do both. Indoors, we seal between the frame and the plaster or reveal, using a paintable sealant if you want to decorate.
Is the new sealant paintable?
Not if it’s silicone. Tell us your decorating plans and we’ll pick a sealant to suit.
What the job involves on each surface
Aluminium frames
Aluminium moves with heat, and the frames are often slimmer than uPVC. A neat, narrow bead in a colour to match keeps the clean look.
Window sills
Stone and concrete sills have their own joints, and the joint under the frame can let rain run behind. Those are sealed with a product suited to stone or concrete.
Honest limits
We will always be straight with you, so here’s what sealant can’t fix:
- A frame that has rotted at the joint
- Draughts through the window seals rather than the frame
- Damp coming through the wall itself rather than the frame joint
Not sure which it is? You can send an email to info@mrmastic.co.uk and we will tell you honestly.
Where we work in Boghead
- uPVC windows
- Patio & French doors
- Timber windows & doors
- Window sills
- Composite doors
- Aluminium frames
What window mastic looks like in Boghead
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 sound outside sealant is part of that.
If you look after a building such as Lesmahagow High School, the mastic around its windows and doors needs looking after like any other building’s.
Boghead is about 6 miles south of Larkhall, in South Lanarkshire. We carry out window mastic for homeowners, landlords and businesses in Boghead and nearby, as part of our work across South Lanarkshire. Boghead is one of 139 towns and villages in South Lanarkshire we cover for window mastic. Our Glasgow page covers work nearby (19 miles or so).
Our applicators cover all of the ML11 postcode area for window mastic and the streets around it. If you need window mastic at a property on Strathaven Road and Lesmahagow Road or a nearby road, our applicators can take on the job. Being close to the B7086, Boghead is simple for us to get to for window mastic. Other places close to Boghead include Kirkmuirhill (1 mile north-east), Blackwood (1 mile north-east), Burnfoot (2 miles north-east), Auchenheath (2 miles north-east) and Lesmahagow (3 miles south-east). Further out, we also cover East Kilbride (12 miles north-west), Hamilton (9 miles north-west), Cambuslang (14 miles north-west), Uddingston (13 miles north-west), Blantyre (11 miles north-west) and Larkhall (6 miles north).
Landmarks near Boghead
Well-known places in the area include Birkwood Castle (2.7 miles south-east) and Craignethan Castle (3.6 miles north-east). The countryside around Boghead includes Black Hill.
Nearby places to Boghead
More services for Boghead
The process
Once we are on site, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. Most jobs then take a morning for a couple of windows and a door. In smaller Scottish places, parking is normally less of an issue than access and distance. Let us know how to find you and how to reach the joints, and the visit is planned around that.
- First we look at every frame and agree the list.
- The old mastic is cut out and the surfaces cleaned back.
- Deep gaps are filled with backing rod to set the depth.
- A flexible, weatherproof sealant is applied in a colour to suit the frame.
- Every joint is checked before we leave.
How to prepare
- Keep pets and children clear of the area while we work
- Mention any tricky access
- Try not to wet indoor joints just before the visit
Getting a quote
Every job is quoted individually, so start by telling us what you need. Just drop us a line at info@mrmastic.co.uk with the details and send photos if you have them.
Read more
Should I try it myself first?
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.
If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
What affects the quote in Boghead
For a quick quote, just ask. What matters most is:
- The size of the job
- Mould in or behind the old joints
- The type of sealant required
- Any working-time requirements on site
We do not show prices on the website, because each job is priced on what it involves. Call for a quick quote.
Asking for a quote
Photos help, but a description is a good start. Please mention:
- The address or postcode of the job
- What the problem is, such as mould, gaps, leaks or cracking
- Roughly how big the job is
- Photos by email, if that’s easy
Need a quote? Please send an email to info@mrmastic.co.uk and tell us about the job. We will explain what we’d do and give you a clear price before we start.
Leave it or put it right?
A cracked joint around a frame lets rain into the wall. Left long enough, it can stain inside walls, spoil plaster and rot wooden frames. Resealing now is a small job by comparison. Exposed walls in smaller Scottish places take a lot of wind and rain, and damp in stone or harled walls takes a long time to dry once water gets behind a joint.
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 will have a clear quote before any work starts, so you know where you stand.
Why book with us
- Tidy, careful work
- We agree the colour with you first
- Domestic, commercial and hotel work
- Arbo and Everbuild products
Common problems we fix in Boghead
Joint shape matters as much as the product. A skim of sealant over a wide gap soon tears, while a joint packed solid can’t stretch. Backing rod sets the right depth.
If you can see any of these, it’s time to have the joints looked at:
- Cracked or shrunken mastic around the frame
- Black, perished sealant on frames
- Cracked sealant at the sill ends
- A bead that doesn’t match the frame
In and around Boghead, as anywhere, good window mastic starts with a clean, dry, properly prepared joint.
Comparing quotes
- Whether you can choose the colour
- Whether the sealant suits the joint
- Whether they seal over old material or remove it
- How hidden problems are handled
