Scottish Borders · Scotland
Window & door mastic in Stichill, Scottish Borders
Mastic around window and door frames, sills and patio doors in Stichill, with a 12-month guarantee on every job. Call for a quick quote.
- Cracked sealant at the sill ends
- Rain getting in at the frame or under the sill
- Sealant in the wrong colour for the frame
About our window mastic in Stichill
Every window and door frame has a gap around it, and mastic is what closes it. Once that seal fails, wind and rain find the gap. Our applicators cut it out and replace it with a flexible, weatherproof sealant. If you are dealing with gaps where the sill meets the wall and gaps between the frame and the inside reveal, we can help.
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.
Our work is backed for twelve months.
- Place
- Stichill (TD5)
- Wider area
- Scottish Borders
- Guarantee
- One year on every job
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
How the visit works
When we get to you, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. Most jobs then take a few hours for a few frames, or a day or more for a whole house. In smaller Scottish places, parking is usually 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.
- We remove the old mastic and clean the frame and the wall.
- We fit backing rod in deep gaps so the sealant is the right depth.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- We clear up and check every joint is fully closed.
Before we arrive
- For indoor joints, keep the area dry beforehand if you can
- Mention any parking rules near the property
- Clear items away from the joints we’re working on
Ask for a quote
For window mastic in Stichill, email us at info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and you will get a clear quote before we start.
Read more
Leave it or put it right?
The work is quick compared with the damage it prevents: the visit takes a few hours for a handful of frames, longer for a whole house. Wait for damp to appear and there may be plaster and decorating to sort out too. In an older home around Stichill, damp from a failed joint can get into timber and plaster.
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. You’ll know the price before we begin.
What you get with us
- 4.9 on Google from 180+ five-star reviews
- Any old sealant cut out fully, not covered over
- We leave the area clean and tidy
- One-year guarantee on every job
Read our cost guide and what customers say.
For landlords and businesses
We also work for property managers and facilities teams in Stichill and across the Scottish Borders. Several sites can be quoted together, and we’re fully insured.
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
When to call us in Stichill
Frames are never completely still. Sun on a frame makes it expand, and it contracts again overnight, while the masonry beside it stays put. A sealant that cannot keep up eventually tears.
Look out for any of the following:
- Leaking joints at the ends of sills
- Untidy mastic left by window fitters
- White mastic on grey or black frames
- Cracked internal joints between frame and plaster
Homes close to United Presbyterian Church include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
What to look for in a quote
- What happens if the job turns out different
- Is VAT in the price?
- Whether all the old sealant comes out first
- Who does the work, and how experienced they are
DIY versus a professional finish
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
If you are 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 window mastic looks like in Stichill
Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and failed outside joints work against that. 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.
Schools such as Kelso High School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
Stichill is about 14 miles east of Galashiels, in the Scottish Borders. From the centre of Stichill to the outskirts, we cover window mastic for every kind of property, from flats and houses to offices and hotels. We cover 89 towns and villages across the Scottish Borders. For nearby work, see our Edinburgh page, about 36 miles away.
Here we cover the TD5 postcode area for window mastic. Other places close to Stichill include Ednam (2 miles south-east), Kelso (3 miles south), Sprouston (3 miles south-east), Eccles (4 miles north-east) and Smailholm (4 miles west). Larger places within reach include Galashiels (14 miles west), Jedburgh (12 miles south), Duns (10 miles north-east), Melrose (11 miles west), Earlston (9 miles west) and Lauder (13 miles north-west).
Around Stichill
A little further out are Kelso Hospital (2.6 miles south) and Hume Castle (2 miles north-west).
How the job changes by surface
Window sills
Sills catch the water running down the glass, so the sill ends and the joint under the frame are vital. Each is cleaned out and resealed.
Timber windows & doors
Timber moves with moisture as well as heat, so the joint must stay flexible. We seal onto sound, dry paintwork or timber.
FAQs for Stichill
Is there a guarantee on window mastic in Stichill?
All our work, in Stichill and everywhere else, comes with a 12-month guarantee. We are also fully insured and ARBOMaster approved.
Can you do window mastic in Stichill?
Yes. Our work covers the whole of Scotland, and Stichill is part of that. You can drop us a line at info@mrmastic.co.uk and let us know what needs doing, and we will give you a clear price.
What sealant do you use?
Products from Arbo and Everbuild, among others, picked for each joint. We will tell you what we’re using and why.
Where is Mr Mastic based?
Our base is in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
Do you take out the old sealant first?
Yes. Sealing over old sealant is the main reason resealing fails early, so we never do it.
Will there be a smell?
Sometimes, a little. It fades as the sealant cures, and ventilation helps.
Can you seal over the old sealant?
No, it won’t last. It may look fine at first, but the new bead soon lifts. Removing the old sealant completely is the only lasting way.
Can you reach windows above the ground floor?
Yes, where they can be reached safely. Tell us about access when you get in touch so we can plan the job.
What affects the quote in Stichill
You’ll get a clear quote before any work starts. It takes into account:
- How much there is to do
- How many rooms, windows or areas are involved
- Whether there’s mould to deal with
- Any working-time requirements on site
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all play a part, and we’ll explain the quote if you ask.
What to tell us for a quote
Photos by email are helpful but not essential. Please mention:
- How many joints, rooms or windows are involved
- What the problem is, such as mould, gaps, leaks or cracking
- Where the job is, and your postcode
- Any previous sealing or DIY work
For 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.