Scottish Borders · Scotland
Window Mastic in Killochyett
Mastic around window and door frames, sills and patio doors for Killochyett, backed by a 12-month guarantee. Ask us for a quote.
- Leaking joints at the ends of sills
- Cracked or shrunken mastic around the frame
- Old mastic that has gone black or come away
Killochyett: your questions answered
Do you work for landlords with property near Stow station?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. You can drop us a line at info@mrmastic.co.uk with the details for a clear quote.
Do you cover smaller places like Killochyett?
Yes, smaller places are covered as well as towns. We work across all of Scotland. Just mention lanes, gates or anything else about the route when you book.
Does someone need to be in?
For indoor joints, yes, someone needs to let us in. Once we have agreed the job, you don’t need to watch us work.
Will the old sealant be removed?
Yes, every time. New silicone does not stick to old silicone, so any old material comes out before anything new goes in.
Is it worth trying it myself?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
How long before the joint can be used?
Many sealants skin over quickly but take longer to cure fully. We’ll tell you how long to leave the joint.
Can resealing stop a draught around my window?
Yes, if the air is getting in around the frame. If it’s through the window’s own seals or a hinge, that is a different fix, and we’ll say so.
Can you seal the gap between the frame and the plaster indoors?
Yes, we do both. Indoors, we seal between the frame and the plaster or reveal, using a paintable sealant if you want to decorate.
How we handle window mastic in Killochyett
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. Common call-outs are for hard, cracked sealant around windows and mastic that’s falling out in pieces, across window sills, patio & French doors and aluminium frames.
In and around a place like Killochyett, homes range from older stone-built cottages to newer houses. Exposed frames and sills take the full force of wind-driven rain.
Your job is guaranteed for a year, as with all our work.

- Location
- Killochyett (TD1)
- Wider area
- Scottish Borders
- Cover
- 12 months on all our work
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
DIY sealant or a professional job?
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
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.
Window mastic in Killochyett: local notes
Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that. Sash and case windows are common in older Scottish homes, often pointed into the wall with traditional sand mastic.
If you let a flat or house near Stow station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Killochyett is about 6 miles north of Galashiels, in the Scottish Borders. For window mastic in and around Killochyett, please drop us a line at info@mrmastic.co.uk for a quick quote. We are based in Crawley and cover the Scottish Borders. Across the Scottish Borders, we cover 89 places, Killochyett among them. You can also see our page for Edinburgh, roughly 22 miles from Killochyett.
We work across TD1 for window mastic. We cover properties on Cockholm Crescent, Craigend Road and Galashiels Road and the roads around them. We also cover the places around Killochyett: Stow (1 mile south-east), Fountainhall (3 miles north-west), Lauder (5 miles east), Clovenfords (5 miles south) and Nether Blainslie (6 miles east). Larger places within reach include Galashiels (6 miles south), Peebles (13 miles west), Selkirk (10 miles south), Innerleithen (9 miles south-west), Melrose (9 miles south-east) and Earlston (8 miles south-east).
Near you in Killochyett
Killochyett has its own railway station: Stow station.
Quotes for window mastic in Killochyett
You will get a clear quote before we start. It takes into account:
- The size of the job
- How many rooms, windows or areas are involved
- Access and height
- Mould in or behind the old joints
Doing several joints on one visit is usually more efficient than separate visits, so it’s worth mentioning everything you’d like done. We will give you a clear price for the lot.
Helping us quote
When you call or email, it’s useful to know:
- Where the job is, and your postcode
- The rough size of the job
- What the problem is, such as mould, gaps, leaks or cracking
- Pictures of the joints, sent by email
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
Honest limits
A few problems are outside what sealant work can do:
- Draughts through the window seals rather than the frame
- A frame that has rotted at the joint
- Broken hinges, locks or handles
If in doubt, send an email to info@mrmastic.co.uk and we’ll say what we think before you book.
Joints and surfaces we work on
- Composite doors
- Patio & French doors
- Window sills
- Timber windows & doors
- uPVC windows
- Aluminium frames
Places near Killochyett
Other services in Killochyett
What the job involves on each surface
uPVC windows
Fitters’ mastic on plastic frames is sometimes thin and rushed. It comes out, deep gaps get backing rod and the joint is resealed.
Window sills
Masonry sills can have joints where water gets in, including the one between the sill and the frame above. We seal those with a sealant suited to masonry.
Common problems we fix in Killochyett
Some failures date back to when the windows were fitted. Sealant run over dust, wet brick or loose mortar never bonded as it should, so it comes away long before its time.
If you can see any of these, it’s time to have the joints looked at:
- Water coming in at the bottom corners of a door
- Mastic that’s falling out in pieces
- Cracked or shrunken mastic around the frame
- Gaps left after new windows were fitted
Around Killochyett, as everywhere, window mastic is only as good as the preparation behind it.
Questions to ask before booking
- How long the guarantee is
- Which colour the sealant will be
- Whether they seal over old material or remove it
- How the joint is cleaned and prepared
For landlords and businesses
Landlords and agents in Killochyett can book us as well as householders. Sealant work between tenants keeps a property looking cared for.
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 happens on the day
All our tools and materials come with us in the van, so there’s nothing for you to buy. Once we’ve agreed what’s being done, we protect the area and start. Most jobs 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. Tell us how to find the property and how to reach the work, and the visit is planned around that.
- First, we confirm safe access to each frame.
- Old, cracked mastic is removed completely, along with any loose debris.
- Frame and wall are cleaned and must be dry before sealing.
- Backing rod fills deep voids and the sealant goes in on top.
- We tool the joint so water runs off, then clear up.
Before we arrive
- For business premises, tell us about site rules or sign-in
- Tell us about any previous sealing or DIY attempts
- Try not to wet indoor joints just before the visit
Ask for a quote
For window mastic in Killochyett, send an email to info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
