Scottish Borders · Scotland
New-build mastic & snagging in Kelso, Scottish Borders
Plot mastic for developers and snagging failed sealant in new homes for homeowners, landlords and businesses in Kelso. Fully insured, ARBOMaster approved and guaranteed for a year.
- Cracked caulk along new skirting
- Smeared, uneven beads picked up at snagging
- Sealant applied over dusty or wet surfaces
Why it’s worth doing now in Kelso
A failed shower or bath seal in a new home lets water into floors and walls that are still drying out. Resealing promptly protects the new finishes around it. In a place like Kelso, small leaks are easy to put off, but water through a failed joint keeps working away until it’s fixed.
Doing several joints on one visit usually makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. We will send you a clear quote for the lot.
Why choose Mr Mastic in Kelso
- Neat joints and a tidy finish
- ARBOMaster approved applicator
- Trusted Arbo and Everbuild sealants
- Rated 4.9 stars on Google
Read our cost guide or customer reviews.
New build mastic for homes and businesses in Kelso
New homes move as they dry out. Timber shrinks, plaster dries and baths and trays bed down, so sealant that was laid quickly before handover often cracks. If you are dealing with untidy sealant flagged on a snagging list and cracks appearing as a new home settles, we can help, on kitchens, skirting & floors and bathrooms & en suites alike.
Work in a place like Kelso is planned ahead, journey included. Outdoor plot mastic needs dry weather, but indoor floor and skirting joints can be sealed whatever the forecast.
There’s a 12-month guarantee on every job.

- Where
- Kelso (TD5)
- Wider area
- Scottish Borders
- Cover
- 12 months on all our work
- Quote
- A clear price before work begins
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
How the job changes by surface
Windows and doors
Draughts around new frames are often a sealant gap. We look at the joints and reseal where needed.
Show homes
We seal show-home bathrooms, kitchens and frames ready for viewings. We’ll plan around viewing times.
Kelso questions
Will you come out to Kelso?
Yes. Kelso is within the area we cover, which takes in towns, villages and rural addresses. Our work covers the whole of Scotland. Just mention lanes, gates or anything else about the route when you book.
Is there a guarantee on new build mastic in Kelso?
All our work, in Kelso and everywhere else, comes with a 12-month guarantee. We are also fully insured and ARBOMaster approved.
I’m a tenant. Can you help?
Yes, though it’s best to check with your landlord first. Many landlords are glad to have it sorted.
Who should fix failed sealant in a new build?
Report it to the builder first while you are covered. Once that’s done, or if they won’t put it right, we’ll cut it out and reseal it.
When is the sealant fully cured?
Many sealants skin over quickly but take longer to cure fully. We’ll give you the cure time for the product we used.
Do you hold any approvals?
Yes. We hold ARBOMaster approved applicator status.
Why does sealant fail so quickly in new builds?
Lots of new homes see sealant crack early. Poor preparation at handover adds to it.
Can I do it myself?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
New build mastic around Kelso
Many new homes in Scotland are timber-framed, so skirting and sealant joints can open up as the building settles.
Whether the job is in Kelso itself or nearby, the right material for each joint matters as much as a neat finish. Around Kelso, as everywhere, new build mastic is only as good as the preparation behind it.
Kelso is about 32 miles south-east of Bonnyrigg, in the Scottish Borders. Homes, rented property, offices and hotels in Kelso can book us for new build mastic. Every job comes with our one-year guarantee. Across the Scottish Borders, we cover 89 places, and Kelso is one of them. There’s also a page for Edinburgh, about 38 miles away.
Work in TD5 is quoted and booked the same way as anywhere else. Streets in the area include Horse Market, Station Road and Forestfield, and we cover them all. With the A698 and A699 close by, Kelso is simple for us to get to. Other places close to Kelso include Sprouston (2 miles east), Ednam (2 miles north), Heiton (2 miles south-west), Stichill (3 miles north) and Roxburgh (3 miles south-west). Larger places within reach include Galashiels (15 miles west), Jedburgh (10 miles south-west), Duns (13 miles north), Melrose (11 miles west), Earlston (10 miles west) and Lauder (15 miles north-west). As one of the bigger places in the Scottish Borders, Kelso has homes, rented property and businesses of every kind.
What’s near Kelso
Around Kelso, our work takes us to homes and buildings near The Waggon Inn and the streets around them. A little further out are Kelso Hospital (within half a mile north-west) and Roxburgh Castle (1 mile west).
What else we do in Kelso
What we do, step by step
When we get to you, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. Most jobs then take a few hours for most snagging lists, longer for a run of plots. 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.
- We start by going through the snagging items or plot schedule with you.
- Every bit of the old builder’s sealant is cut out, with no layer left behind.
- We clean out the dust and grit left from the build.
- Primer goes on where the surface and product need it, then the new sealant.
- We tool every joint neatly and tell you when each area can be used.
Getting ready for the visit
- For indoor joints, keep the area dry beforehand if you can
- Tell us about any previous sealing or DIY attempts
- Mention any sign-in or site rules at work premises
Ask for a quote
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is.
Read more
When it isn’t the sealant
In fairness, some problems need a different trade:
- Plumbing faults behind the sealant
- Movement caused by a poorly fitted tray or bath
- Structural cracks in walls or ceilings
If in doubt, send an email to info@mrmastic.co.uk and we will say what we think.
What we seal
- Bathrooms & en suites
- Kitchens
- Show homes
- Skirting & floors
- Plot handovers
- Windows & doors
Should I try it myself first?
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so tell us about it when you ask for a quote.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
Aftercare tips
Simple care keeps the joints in good condition. We recommend:
- Follow the cure time we give you
- Resist patching a failed seal with a tube from the DIY shop
- Photograph failed sealant before it’s redone
- Watch for new gaps as the house dries out
Follow the cure time we give you before the area gets wet. Silicone is normally left for about a day before water reaches them.
Mould takes hold quickly in sealant that has gaps or lifted edges. Dealing with it before it goes black saves a harder job later.
Landlord and commercial work in Kelso
Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.
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.
