Stirling · Scotland
Sand mastic for sash & case windows in Lochearnhead, Stirling
Problem with your window and door surrounds in Lochearnhead? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Mastic dropping out of the joint
- Patchy fillers round a sash window
- Failed mastic on an exposed elevation
DIY sealant or a professional job?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
A DIY attempt does not rule out a professional job. We cut it out and start again.
How we handle sand mastic in Lochearnhead
On many period windows, sand mastic looks right and suits the building. Newer frames usually get a flexible sealant instead and we’ll explain which is best for yours. If you are dealing with draughty sash windows at the surround and modern sealant on a period surround, we can help, whatever the surface.
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.
You get a one-year guarantee, the same in Lochearnhead as everywhere else we work.
- Place
- Lochearnhead (FK19)
- Region
- Stirling
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Why act early in Lochearnhead
Filling over old, loose mastic doesn’t last. Raking out and preparing the joint gives it a sound base so the new work lasts. Exposed walls in smaller Scottish places take a lot of wind and rain, and once water gets behind a failed joint, damp in stone or harled walls is slow to dry out.
The cost depends on how much there is to do, how much old material has to come out and access to the work. You will have a clear quote before any work starts, so you know where you stand.
Why us?
- 20+ years of sealant experience
- Anti-fungal silicone where joints get wet
- Fully insured
- We leave the area clean and tidy
Take a look at what affects the cost or what customers say.
What sealant work can’t fix
Honest advice matters more to us than a booking, so here’s what sealant can’t fix:
- Cracked or broken glass
- Timber that has rotted
- Crumbling stone or brickwork round the window
If you’re not sure, just send an email to info@mrmastic.co.uk and we’ll give you a straight answer before you book.
What we seal
- Tenement windows
- Sash and case windows
- Brick reveals
- Timber door frames
- Stone surrounds
- Period & listed homes
Lochearnhead questions
Is Lochearnhead within the area you cover?
Yes, Lochearnhead is covered. Our work covers the whole of Scotland, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Is Lochearnhead in your area for sand mastic?
Yes. Our work covers the whole of Scotland, and Lochearnhead is part of that. Just email us at info@mrmastic.co.uk with a few details of the job, and we’ll send you a clear quote.
Do you guarantee sand mastic work?
You get our 12-month guarantee on every job.
Are you an approved applicator?
Yes. We are approved under the ARBOMaster scheme.
Are you fully insured?
Yes, we are fully insured.
What do you need from me for a quote?
Let us know what needs doing and where, with photos by email if possible. We will ask anything else we need to know.
Can new sealant go over the old?
No, because it fails. The old sealant always comes out first.
Will you leave a mess?
No. We protect the surfaces around the joints, and we tidy up before we go.
Also near Lochearnhead
What else we do in Lochearnhead
Do you need sand mastic in Lochearnhead?
Shallow joints are a common cause. A thin layer does not hold well so we make sure the new mastic is the right thickness.
Common reasons people contact us are:
- Draughts and rain around sash boxes
- Mastic that needs renewing before redecorating
- Crumbling sand mastic round a window
- Cement or filler used on old window joints that has cracked
Around Lochearnhead, as everywhere, sand mastic is only as good as the preparation behind it.
What your quote should include
- Whether they seal over old material or remove it
- Whether you can choose the colour
- What the cure time is
- How much experience the applicator has
What happens on the day
Most of a good job is in the preparation, and we do not rush it. Joints are cleaned back and dried before anything new goes in. In total, it generally takes a few hours per window, depending on the condition of the joints. For a place like Lochearnhead, longer drives are planned in advance. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- First we agree which joints need doing.
- Old mastic and any loose material are raked out.
- We pack any deep voids first.
- We apply the mastic by hand and shape it.
- The surface is finished to suit the stone or brick.
Before we arrive
- Plan for the work area to be out of bounds to pets and children
- Let us know about stairs, lifts or work at height
- Mention any parking rules near the property
Getting a quote
Every job is quoted individually. Just send an email to info@mrmastic.co.uk with the details.
Advice
Looking after it afterwards
No joint lasts for ever, but care makes a real difference. Our tips:
- Check the mastic when you check the paintwork
- Find out about consent before window work on a listed home
- Keep sills and gutters clear so water drains away
- Take care around the mastic when scraping paint
Keep gutters and sills clear so water runs away from the surround. Constant wetting wears the mastic faster.
Small cracks are a sign the mastic is ageing. It’s easier to renew it before it drops out.
Landlords, agents and businesses in Lochearnhead
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. Several properties can go on one quote.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
What sand mastic looks like in Lochearnhead
Sash and case windows are common in older Scottish homes, often pointed into the wall with traditional sand mastic. Lochearnhead is in the west of Scotland, which is wetter than the east, which means the mastic around older windows and doors has to cope with a lot of rain.
In the older streets around St Angus Episcopal Church, the joint between an old wall and a newer frame is normally the first place rain gets in.
Lochearnhead is about 23 miles north-west of Stirling, in Stirling. We provide sand mastic to householders, landlords and businesses in Lochearnhead. Lochearnhead is one of 55 places in Stirling we cover. You can also see our page for Glasgow, roughly 37 miles from Lochearnhead.
Every address in FK19 is within our area for sand mastic, from the main roads to the quietest streets. Streets in the area include Auchraw Terrace, Cameron Court and Ravenscroft Road, and we cover them all. We also cover the places around Lochearnhead: Strathyre (5 miles south-west), Killin (6 miles north), St Fillans (7 miles east), Kilmahog (10 miles south) and Callander (10 miles south).
Landmarks near Lochearnhead
Other landmarks nearby include Edinample Castle (1 mile south-east). Green spaces nearby include Loch Earn.