Scottish Borders · Scotland
New Build Mastic in Stirches
Professional new build mastic in and around Stirches, with every bit of old sealant taken out first and a 12-month guarantee.
- Frame joints opening as the plaster dries
- Worktop and upstand sealant coming away
- Cracks appearing as a new home settles
DIY versus a professional finish
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.
New build mastic in Stirches
A new house keeps drying out and settling for its first couple of years. Timber shrinks, plaster dries and baths and trays bed down, and sealant applied in a hurry at handover can split. If you have cracked sealant around new window and door frames and skirting joints opening in the first winter, we can put it right, whatever the surface.
Many newer homes in Scotland are timber-framed and settle as they dry out, which shows as gaps at skirtings and floor joints. In older homes, timber floors move through the year too.
Each job carries a 12-month guarantee.
- Place
- Stirches (TD9)
- Region
- Scottish Borders
- Cover
- One year on every job
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Looking after it afterwards
Joint life depends on how it’s used and looked after. We suggest:
- Wait for the cure time before using a resealed shower
- Wipe joints with warm soapy water
- Avoid running a DIY bead over the old one
- Raise failed sealant with the developer while you are covered
Don’t stand on the bath edge or the lip of the tray. Report any movement in a bath or tray.
Leave a failed new-build seal and water can reach the floor and the ceiling below. Early resealing keeps the job small and the new finishes intact.
Stirches questions
Do you cover Stirches for new build mastic?
Yes, Stirches is within the area we cover. We work across all of Scotland. Just send an email to info@mrmastic.co.uk with a few details of the job.
What guarantee comes with new build mastic in Stirches?
All our work, in Stirches and everywhere else, comes with a 12-month guarantee. We’re also fully insured and ARBOMaster approved.
How long does the job take?
It depends on the size of the job, but as a guide it takes anything from a few hours to several days, depending on the number of plots. We’ll give you a better idea when we quote.
Are you insured?
Yes. We are fully insured for every job we do.
Will you just run a new bead over the existing one?
No. We always remove the existing bead, then clean and prime the joint, and a new bead applied.
Does someone need to be in?
It depends on the job. Inside work needs someone to give us access.
Will the old sealant be removed?
Yes. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.
Where is Mr Mastic based?
Our base is in Crawley, and we work across South East England, London and Scotland.
How the job changes by surface
Show homes
We can refresh show-home sealant that has discoloured or been knocked. We cut it out and reseal neatly.
Skirting and floors
As timber and screed dry, skirting and floors shift. Caulk cracks; a flexible sealant moves with it in a colour to suit.
Common problems we fix in Stirches
The wrong product is sometimes used in the wrong place: decorators’ caulk in a wet area, or a stiff sealant where there’s movement. Both fail early.
People generally contact us after spotting something like this:
- Cracks appearing as a new home settles
- Shower seals failing in the first year or two
- Sealant work across a run of new homes
- Beads laid onto grit and dust from the build
In and around Stirches, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Comparing quotes
- What happens if they find a problem under the old sealant
- What insurance they hold
- Is the old sealant removed completely?
- How long to leave it before use
What we cannot put right
We won’t take on work that won’t last, so here’s what sealant cannot put right:
- Movement caused by a poorly fitted tray or bath
- Your warranty claim itself, which is between you and the builder
- Damaged fittings that need replacing
If in doubt, email us at info@mrmastic.co.uk and we’ll say what we think.
Where we work in Stirches
- Bathrooms & en suites
- Show homes
- Plot handovers
- Skirting & floors
- Kitchens
- Windows & doors
New build mastic in Stirches: local notes
Many new homes in Scotland are timber-framed, so skirting and sealant joints can open up as the building settles.
For jobs in and around Stirches, choosing the right material for each joint is as important as a tidy finish.
Stirches is about 1 mile north-west of Hawick, in the Scottish Borders. Across the TD9 area, our applicators can take on new build mastic. Stirches is one of 89 towns and villages in the Scottish Borders we cover. There’s also a page for Edinburgh, about 39 miles away.
Jobs for new build mastic in TD9 is quoted and booked the same way as anywhere else. We cover properties on Bowden Road, Stirches Road and Atkinson Road. If you’re just outside Stirches, we cover Wilton (1 mile south), Hawick (1 mile south-east), Wilton Dean (1 mile south-west), Burnfoot (1 mile east) and Woll (4 miles north-west). Larger places within reach include Galashiels (12 miles north), Selkirk (8 miles north), Jedburgh (10 miles east), Melrose (12 miles north), Earlston (15 miles north) and Langlee (12 miles north).
Local landmarks in Stirches
In Stirches, that means homes and buildings near The Bourtree pub. Nearby you’ll also find Borders Textile Towerhouse (0.9 miles south) and Hawick Community Hospital (0.7 miles south). For a walk, there’s Ashkirk Hill and Ashkirk Loch.
For landlords and businesses
Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.
In hotels, rooms out of use cost money, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
The process
On the day, we look over the joints with you first, so there are no surprises. We protect the surfaces around the joints before any work begins. The work normally takes a few hours for most snagging lists, longer for a run of plots. For a place like Stirches, longer drives are planned in advance. Mention tracks, gates, ferries or anything else about the route.
- We look at why each joint failed, including any movement.
- Old sealant is cut out and the joints cleaned.
- Joints are dried and primed where the product calls for it.
- Baths are filled with water, then the new sealant is applied.
- We check every joint and leave you with the cure times.
Getting ready for the visit
- Where the joints are inside, avoid wetting them before we arrive
- Tell us if parking is tricky
- For business premises, tell us about site rules or sign-in
Get a quote
We quote each job on its own, so the first step is telling us about yours. Simply email us at info@mrmastic.co.uk and describe the job, and photos are welcome.