Scottish Borders · Scotland
Window Mastic in Tweedbank
Problem with your window and door frames in Tweedbank? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Water coming in at the bottom corners of a door
- Old mastic that has gone black or come away
- Draughts coming in around windows and doors
Work for landlords, hotels and businesses
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. Several properties can be quoted together.
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together, and we are fully insured.
Window mastic in Tweedbank
Most frames have an outside joint and an inside one. Outside, the mastic keeps rain out; inside, the joint between frame and plaster stops draughts and tidies the reveal. We seal one or both, depending on what’s needed. We work on window sills, patio & French doors and uPVC windows, and common reasons people get in touch are mastic that’s falling out in pieces and sealant in the wrong colour for the frame.
Older stone-built homes in Scotland often have sash and case or timber windows set in stone. Those suit a traditional sand mastic or a neutral-cure sealant, not an acetoxy silicone that can attack some stone.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Location
- Tweedbank (TD1, TD6)
- Region
- Scottish Borders
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Common questions in Tweedbank
Can you help a landlord with a rental near Tweedbank station?
Yes, landlords and agents are among the people we work for. You can email us at info@mrmastic.co.uk with the details for a clear quote.
Will you come out to Tweedbank?
Yes, Tweedbank is covered. We work across all of Scotland, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
When is the sealant fully cured?
Many sealants skin over quickly but take longer to cure fully. We’ll tell you how long to leave the joint.
Does someone need to be in?
If the work is inside, we need someone to let us in. Once we have agreed the job, you do not need to watch us work.
Can I paint over the new sealant?
Not if it’s silicone. We choose the product with your decorating in mind, so mention it when you book.
Can I do it myself?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.
Is the work guaranteed?
Yes. Our one-year guarantee covers every job.
Can you do the inside joint as well?
Yes. Draughts often come through the inside gap too, so sealing both is often worthwhile.
DIY sealant or a professional job?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
What affects the quote in Tweedbank
You will get a clear quote before work begins. It takes into account:
- The type of sealant required
- Mould in or behind the old joints
- How easy the joints are to reach
- Whether old sealant or filler has to be cut out
Every job is a little different, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all play a part, and we’ll explain the quote if you ask.
What we need to know
Photos by email are helpful but not essential. Try to tell us:
- If someone has resealed it before
- Pictures of the joints, sent by email
- Roughly how big the job is
- Where the property is
Every job is quoted individually, so start by telling us what you need. Simply drop us a line at info@mrmastic.co.uk and describe the job and send photos if you have them.
Different surfaces, different methods
Composite doors
If the door itself is draughty, the issue may be the door seals or hinges rather than the frame mastic. We’ll tell you if that is what we find.
Window sills
Where a sill meets brick or render, the ends often crack first. A tight seal at each end keeps rain out of the wall.
Why deal with it now?
Working on frames from a ladder with a sealant gun isn’t easy, especially on upper floors. A professional job is cut out properly, backed where needed and finished neatly, using a product chosen for the frame and wall. Around Tweedbank, water from a failed joint in an older stone home can soak into timber and plaster, which is a far bigger job than the sealant.
The cost reflects the work involved, not guesswork. That’s why we ask a few questions first and agree the price before starting.
Why us?
- We never seal over old sealant
- White, clear, grey or coloured to suit, where the product allows
- 180+ five-star Google reviews
- ARBOMaster approved applicator
Take a look at how sealant jobs are priced or what customers say.
How it works
At the end, we look at the finished work together. The work normally takes anything from an hour or two to a full day, depending on how many frames there are, depending on the amount of work. 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 go round the frames with you and agree the list.
- The old mastic is cut out and scraped back to clean surfaces.
- Deep gaps get closed-cell backing rod to set the depth.
- A flexible exterior sealant is applied in a colour to suit the frame.
- Every joint is tooled smooth and checked before we leave.
Getting ready for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Clear items away from the joints we’re working on
- For business premises, tell us about site rules or sign-in
Getting a quote
Asking for a quote is easy: let us know the job and the location. Photos by email help us understand the job, and we’ll come back to you with a quote.
Advice
Frames and glazing around Tweedbank
Many older homes in Scotland have sash and case windows, 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.
Managing a site like Galashiels Academy? Then the mastic around its windows and doors needs looking after like any other building’s. If you let a flat or house near Tweedbank station, renewing tired window mastic between tenants heads off draught and damp complaints.
Tweedbank is about 2 miles south-east of Galashiels, in the Scottish Borders. Every kind of property in Tweedbank is covered for window mastic. Every job comes with our one-year guarantee. Tweedbank is one of 89 places in the Scottish Borders where we work for window mastic. Edinburgh is on our list too, around 29 miles away.
Here we cover the TD1 and TD6 postcode area for window mastic. Whether your property is on Cotgreen Road, Abbotsferry Road and Tweedbank Avenue or a nearby road, our applicators can take on the job. If you are just outside Tweedbank, we cover Langlee (1 mile north-west), Darnick (1 mile east), Boleside (2 miles south-west), Gattonside (2 miles east) and Galashiels (2 miles north-west). Further out, we also cover Hawick (12 miles south), Kelso (13 miles east), Selkirk (5 miles south-west), Jedburgh (12 miles south-east), Wilton (12 miles south) and Innerleithen (12 miles west).
Local landmarks in Tweedbank
Tweedbank has its own railway station: Tweedbank station. Nearby you’ll also find Old Gala House (1.8 miles north-west) and Borders General Hospital (1.1 miles south-east). Green spaces nearby include Eildon Mid Hill.
Places near Tweedbank
Other services in Tweedbank
Keeping the joints in good condition
Aftercare is simple, and it makes a real difference:
- Keep solvents and bleach off the sealant
- Ventilate rooms so frames don’t stay wet inside
- Keep paint and stain on wooden frames in good order
- Don’t paint over the silicone
Most silicone sealants won’t take paint, so if you are planning to paint the frames or walls, tell us beforehand. We can use a paintable sealant where that matters.
Wet, windy weather is when failed mastic shows itself, but resealing works best in dry conditions. Dealing with it when you first notice a crack avoids chasing leaks through the wet months.