Scottish Borders · Scotland
Window Mastic in Langlee
Mastic around window and door frames, sills and patio doors in Langlee, with a one-year guarantee on every job. Ask us for a quote.
- Gaps between the frame and the inside reveal
- A bead that doesn’t match the frame
- Mastic that has split away from the wall
When it is not the sealant
A few problems are outside what sealant work can do:
- Broken hinges, locks or handles
- A failed sealed unit that has misted up
- Penetrating damp from a failed cavity tray or render
Not sure which it is? You can email us at info@mrmastic.co.uk and we’ll tell you honestly.
Surfaces we seal
- Composite doors
- uPVC windows
- Aluminium frames
- Timber windows & doors
- Window sills
- Patio & French doors
How we handle window mastic in Langlee
Around Langlee we seal all kinds of frames: from uPVC casements to timber and aluminium, along with patio doors, French doors and sills. Each gets a sealant chosen for the frame and the wall it meets. We work on aluminium frames, timber windows & doors and composite doors, and common reasons people get in touch are hard, cracked sealant around windows and gaps where the sill meets the wall.
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.
Every job is covered by our 12-month guarantee, wherever you are in the Scottish Borders.
- Location
- Langlee (TD1, TD6)
- Region
- Scottish Borders
- Guarantee
- A year, on every job
- Quotes
- A clear price before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026

For landlords and businesses
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. Several properties can go on one quote.
Letting agents and landlords in Langlee can book us as well as householders. Sealant work between tenants keeps a property looking cared for before the next move-in.
Langlee: your questions answered
Do you work for landlords with property near Tweedbank station?
Yes, we work for letting agents and landlords. You can drop us a line at info@mrmastic.co.uk with the address and a few details, and we’ll give you a fixed price before we start.
Do you cover Langlee for window mastic?
Yes. Our work covers the whole of Scotland, and Langlee is part of that. You can drop us a line at info@mrmastic.co.uk and tell us what needs doing.
Is it worth trying it myself?
You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. If it does not work out, we can redo it.
What information do you need?
Just the basics: where it is, what you’ve noticed and how we reach it. After that, simply send an email to info@mrmastic.co.uk.
Can you quote for more than one area?
Yes. Tell us about everything you’d like done and you’ll get one quote.
Do you take out the old sealant first?
Yes. We cut out all the old sealant and clean the joint before resealing.
Do you do commercial work?
Yes. We’ve worked for hotels, offices and other businesses, and we are fully insured.
Do you have sealant for grey or black windows?
Normally, yes. Tell us the frame colour when you get in touch and we’ll use the nearest match.
What we do, step by step
We work through the job in order: protect, prepare, seal, tidy. Typically it takes a morning for a couple of windows and a door and we leave things clean and tidy. Outdoor work around Langlee depends on the weather, as sealant needs a dry surface, so an outdoor job can move if the forecast changes. Work indoors is not affected.
- We start by checking each window and door with you.
- Next the failed sealant is cut away and the joint cleaned.
- Where gaps are deep, backing rod goes in first.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- Finally we tidy up and check each joint.
Preparing for the visit
- For indoor joints, keep the area dry beforehand if you can
- Let us know if you’ve seen damp or leaks
- Mention any sign-in or site rules at work premises
Ask for a quote
It all starts with a short chat. Describe the problem, the location and the size of the job, and we will explain how we’d tackle it. Whenever you’re ready, send an email to info@mrmastic.co.uk.
Read more
What window mastic looks like in Langlee
Sash and case windows are common in older Scottish homes, often pointed into the wall with traditional sand mastic. Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and sound outside sealant is part of that.
For landlords with property near Tweedbank station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. If you look after a building such as Galashiels Academy, the mastic around its windows and doors needs looking after like any other building’s.
Langlee is about 1 mile east of Galashiels, in the Scottish Borders. Our applicators cover window mastic for homes and businesses in Langlee and the surrounding area, as part of our work across the Scottish Borders. Langlee is one of 89 places in the Scottish Borders where we work for window mastic. You can also see our page for Edinburgh, about 28 miles away.
Postcode districts we cover here for window mastic: TD1 and TD6. If you need window mastic at a property on Tweed Road, Brier Lane and Gorse Lane or anywhere close by, our applicators can take on the job. Being close to the A6091, Langlee is easy for our applicators to reach. If you are just outside Langlee, we cover Tweedbank (1 mile south-east), Galashiels (1 mile west), Boleside (2 miles south-west), Darnick (2 miles south-east) and Gattonside (2 miles east). We also work in nearby towns such as Hawick (13 miles south), Kelso (14 miles east), Selkirk (5 miles south-west), Jedburgh (13 miles south-east), Wilton (13 miles south) and Innerleithen (11 miles west).
Around Langlee
The nearest railway station is Tweedbank station, roughly 0.9 miles south-east. Well-known places in the area include Castle Holydean (3.7 miles south-east) and Borders General Hospital (1.8 miles south-east). Green spaces nearby include Eildon Mid Hill.
When to call us in Langlee
Sun, frost and rain wear sealant out. Sunlight dries the surface out, until it loses its stretch and starts to crack.
The problems people usually mention when they call include:
- Cracked sealant at the sill ends
- Gaps between the frame and the inside reveal
- Mastic that is falling out in pieces
- White mastic on grey or black frames
Peel House, about 4.8 miles west, is one of the historic houses in the wider area around Langlee.
What to look for in a quote
- When the joint can take water or movement
- How long the guarantee is
- Are they insured?
- How the colour is chosen
How the job changes by surface
Timber windows & doors
Wood swells when it’s wet and shrinks when it dries, so a flexible sealant is essential. We seal onto sound, dry paintwork or timber.
Window sills
Masonry sills can have joints where water gets in, and the joint under the frame can let rain run behind. Those are sealed with a product suited to stone or concrete.
Why act early in Langlee
Redecorating is a good moment to renew the mastic. A clean new bead makes new paint or render look finished. When the nearest tradesperson is a drive away, it’s tempting to leave a small leak, but water through a failed joint keeps working away until it’s fixed.
The cost 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 we start, so you know where you stand.
Why us?
- Old sealant always removed completely
- Every job guaranteed for a year
- More than 20 years in sealant work
- An ARBOMaster approved applicator
Read what affects the cost or what customers say.
Places near Langlee
Other services in Langlee
How we quote for window mastic
The price is agreed before any work begins. It’s based on:
- How many rooms, windows or areas are involved
- Whether there’s mould to deal with
- The product the joint needs
- Any working-time requirements on site
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs, plus any working-time requirements on site. Call for a quick quote and we will go through it with you.
Asking for a quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- The rough size of the job
- Pictures of the joints, sent by email
- If someone has resealed it before
- Where the property is
Every job is quoted individually. Just email us at info@mrmastic.co.uk with the details.
