Scottish Borders · Scotland
New Build Mastic in Killochyett
Plot mastic for developers and snagging failed sealant in new homes for Killochyett, backed by a one-year guarantee. Ask us for a quote.
- Internal frame sealant that has split
- Shower seals failing in the first year or two
- Plot mastic for developers ahead of handover
How the visit works
The work is kept neat and contained to the joints we are treating, so you can get on with your day. Expect the work to take anything from a few hours to several days, depending on the number of plots. Somewhere like Killochyett may be a longer drive, and the journey is planned ahead. Mention tracks, gates, ferries or anything else about the route.
- We look at why each joint failed, including any movement.
- We remove the failed sealant and clean the joints.
- We make sure the joints are dry and prime them if needed.
- Baths are filled with water, then the new sealant is applied.
- We check every joint and leave you with the cure times.
Before we arrive
- Let us know about earlier repairs to the joints
- Mention any parking rules near the property
- Move anything stored near the joints
Ask for a quote
We quote each job on its own. Simply email us at info@mrmastic.co.uk and describe the job.
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New build mastic in Killochyett
A new build should have a neat, sound bead at every joint. Smeared, patchy or cracked sealant is worth sorting early, before water reaches anything behind it. We are often asked to deal with gaps behind new kitchen upstands and internal frame sealant that has split, on show homes, kitchens and bathrooms & en suites.
New homes in smaller Scottish places are often single plots, self-builds or small developments. Each needs its sealant and floor joints finished as carefully as on a big site.
Your job is guaranteed for a year, as with all our work.
- Location
- Killochyett (TD1)
- Wider area
- Scottish Borders
- Cover
- A year, on every job
- Price
- A clear price before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
DIY versus a professional finish
If you’re set on DIY, put the effort into 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.
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
What new build mastic looks like in Killochyett
Many new homes in Scotland are timber-framed, so skirting and sealant joints can open up as the building settles.
In and around Killochyett, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Killochyett is about 6 miles north of Galashiels, in the Scottish Borders. For new build mastic in and around Killochyett, it’s easy to get a quote: please drop us a line at info@mrmastic.co.uk. We’re based in Crawley and cover the Scottish Borders. We cover 89 towns and villages across the Scottish Borders. You can also see our page for Edinburgh, roughly 22 miles from Killochyett.
Work in TD1 is quoted and booked the same way as anywhere else. New build mastic is available to properties on Cockholm Crescent, Craigend Road and Galashiels Road. We also cover Stow (1 mile south-east), Fountainhall (3 miles north-west), Lauder (5 miles east), Clovenfords (5 miles south) and Nether Blainslie (6 miles east). We also work in nearby towns such as 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.
Also near Killochyett
Also in Killochyett
Signs you need new build mastic in Killochyett
Fresh sealant can be knocked or cut by trades finishing off. A bead disturbed before it has cured may never seal properly, and the problem shows up after you move in.
Common reasons people contact us are:
- Untidy sealant flagged on a snagging list
- Joints pulling apart as timber shrinks
- Cracked caulk along new skirting
- Leaking shower tray seals in a new home
If you’ve bought a new home near Stow station, the sealant around baths, showers and frames is worth checking in the first year or two.
Before booking anyone
- How long to leave it before use
- Are they insured?
- Which sealant they’ll use, and why
- How hidden problems are handled
Killochyett: your questions answered
Is Killochyett within the area you cover?
Yes. Killochyett is within the area we cover, which takes in towns, villages and rural addresses. We work across all of Scotland. Let us know about access, parking and anything unusual about getting there when you book.
Do you cover Killochyett for new build mastic?
Yes. We work across all of Scotland, and Killochyett is part of that. Just send an email to info@mrmastic.co.uk with a few details of the job.
Do you have insurance?
Yes, we are fully insured for domestic and commercial work.
Is it worth resealing while the house is still settling?
For failed seals that let water through, the best time is now. For small cosmetic gaps, waiting until the house has settled can save doing them twice.
Do you work for developers?
Yes. We work through plots to your schedule. Get in touch with the number of plots and the scope and we will quote.
Who should fix failed sealant in a new build?
Start with your builder while their snagging or warranty period runs. After that, or if their repair keeps failing, we can do it.
Are you an approved applicator?
Yes. We’re an ARBOMaster approved applicator.
How long will you be here?
A typical job takes a few hours for most snagging lists, longer for a run of plots, including preparation and clearing up. We will confirm how long when we quote.
Keeping the joints in good condition
No joint lasts for ever, but care makes a real difference. Our tips:
- Ventilate bathrooms well, especially in the first year
- Record problems with dated pictures
- Get a leaking seal dealt with right away
- Don’t seal over failed sealant yourself
Photograph failed sealant before it’s redone and keep the builder’s replies. It’s useful if you need to raise other issues later.
Don’t let the snagging period run out with sealant problems unreported. Once it ends, the repair may be down to you so report it promptly.
Honest limits
We won’t take on work that will not last, so these are the limits:
- Plumbing faults behind the sealant
- Baths and trays that move too much for sealant to cope with
- Settlement cracks that need a surveyor
If you are not sure, just send an email to info@mrmastic.co.uk and we will give you a straight answer before booking.
What we seal
- Show homes
- Skirting & floors
- Windows & doors
- Plot handovers
- Bathrooms & en suites
- Kitchens
How we quote for new build mastic
We quote each job individually. This is what makes a difference:
- The amount of work
- The product the joint needs
- Mould in or behind the old joints
- How much old sealant there is and how hard it is to remove
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you are unsure, send an email to info@mrmastic.co.uk for an honest opinion and a quote.
Helping us quote
Photos by email are helpful but not essential. Try to tell us:
- The type of property
- If someone has resealed it before
- Any access issues, like height or stairs
- What’s wrong with the joints now
We do not publish a price list, as no two jobs are quite the same. Instead, we send you a clear quote for your job. To arrange one, email us at info@mrmastic.co.uk.
Landlords, agents and businesses in Killochyett
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
Housing providers, facilities teams and property managers book us too in Killochyett and across the Scottish Borders. We can quote a run of properties together.