Scottish Borders · Scotland
New Build Mastic in Clockmill
Plot mastic for developers and snagging failed sealant in new homes for homes and businesses in Clockmill and across the Scottish Borders. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Smeared, uneven beads picked up at snagging
- Second-fix sealing on new plots
- Cracks appearing as a new home settles
Common questions in Clockmill
Will you come out to Clockmill?
Yes. Clockmill 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.
Do you cover Clockmill for new build mastic?
Yes, Clockmill 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.
Does someone need to be in?
It depends on the job. For work indoors, someone needs to let us in, while outside work can sometimes be arranged differently.
Can you do plot mastic on a new development?
Yes. Second-fix sealing in bathrooms, kitchens, frames and floors is part of what we do. We clean and prime joints properly to keep callbacks down.
Can you quote for more than one area?
Yes. Tell us about everything you’d like done and you’ll get one quote.
Do you work for landlords and businesses?
Yes, we do. Domestic, commercial and hotel work are all part of what we do.
Should I go to my builder first?
Start with your builder while their snagging or warranty period runs. If that doesn’t work out, we’re happy to quote and our work is guaranteed for a year.
Do you take out the old sealant first?
Yes, every time. New sealant will not bond properly to old, so the joint is cleaned back first.
New build mastic in Clockmill, done properly
We carry out plot mastic and second-fix sealing for builders, and snagging reseals for new-home owners. In both, preparation makes the difference since hurried prep is behind a lot of new-build failures. Typical jobs include sealant that never bonded to the surface and cracks appearing as a new home settles, on kitchens, show homes and plot handovers.
Around smaller Scottish places like Clockmill, new homes tend to be single plots or small developments. They need their sealant and floor joints finished just as carefully as on a big site.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Place
- Clockmill (TD11)
- Region
- Scottish Borders
- Cover
- A year, on every job
- Quote
- A clear price before we start
- info@mrmastic.co.uk
- Last updated
- 26 October 2026

What we are called out for in Clockmill
On many sites, sealant goes on in the final rush before handover. Dusty, unprimed joints are common, so the bead never bonds properly.
Any of these means the joints need attention:
- Gaps between new skirting and floors
- Joints pulling apart as timber shrinks
- Beads laid onto grit and dust from the build
- Frame joints opening as the plaster dries
In and around Clockmill, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
What your quote should include
- When the joint can take water or movement
- How much experience the applicator has
- How the colour is chosen
- How the joint is cleaned and prepared
Why act early in Clockmill
A quick bead over the top of the old sealant can look fine at first, but it won’t bond to the old layer. Taking it all out and starting again is the only way to get a lasting seal. In an older home around Clockmill, damp from a failed joint can get into timber and plaster.
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you’re unsure, email us at info@mrmastic.co.uk and we’ll give you an honest view and a quote.
Why choose Mr Mastic in Clockmill
- Arbo and Everbuild products
- We are fully insured
- Every job guaranteed for a year
- Colour picked to suit the job
See what affects the cost or our reviews.
How to look after the new joints
How long the joints last depends on use and care. Here’s what we suggest:
- Avoid running a DIY bead over the old one
- Look at the sealant regularly in the first couple of years
- Keep water off fresh sealant until it has cured
- Photograph failed sealant before it’s redone
Keep an eye on the joints over the first couple of years. Small gaps can appear as the house dries.
A failed seal in a new home lets water into joists, plasterboard and ceilings. Catching it early keeps the fix to the sealant and the new finishes intact.
Should I try it myself first?
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.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
Also in Clockmill
What we do, step by step
When we arrive, we look over the joints with you first, so there are no surprises. Surfaces next to the work are protected before any work starts. Most jobs take a few hours in a single home. In smaller Scottish places, parking is generally 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, the list of joints is agreed from your snagging sheet or plot schedule.
- The failed sealant is removed completely down to clean surfaces.
- We clean out the dust and grit left from the build.
- We prime where needed and apply a sealant suited to each joint.
- Each bead is tooled and the cure times explained.
Preparing for the visit
- Tell us about any water getting in
- Let us know about earlier repairs to the joints
- For business premises, tell us about site rules or sign-in
Get a quote
Want a quote for new build mastic? Please send an email to info@mrmastic.co.uk with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.
Read more
Joints and finishes in Clockmill homes
Timber frame is common in newer Scottish homes, so skirting and sealant joints can open up as the building settles.
For jobs in and around Clockmill, choosing the right material for each joint is as important as a tidy finish.
Clockmill is in the Scottish Borders. For new build mastic in and around Clockmill, please email us at info@mrmastic.co.uk for a quick quote. We cover the Scottish Borders from our Crawley base, Clockmill included. We cover 89 towns and villages across the Scottish Borders, large and small. For nearby work, see our Edinburgh page.
We work across the TD11 postcode area for new build mastic and the streets around it. If you’re just outside Clockmill, we cover Gavinton (1 mile south), Duns (1 mile east), Preston (3 miles north-east), Longformacus (5 miles north-west) and Swinton (6 miles south-east). Larger places within reach include Kelso (12 miles south), Eyemouth (13 miles north-east), Earlston (15 miles south-west), Lauder (15 miles west) and Chirnside (6 miles east).
What’s near Clockmill
Well-known places in the area include Jim Clark Motorsport Museum (1 mile east) and Langton Castle (0.8 miles west). Not far away are Hule Moss and Duns Castle nature reserve.
What affects the cost of new build mastic
The quote reflects the job in front of us. We look at:
- The size of the job
- The old material and how stubborn it is
- How many areas need sealing
- Working hours on commercial sites
What it costs depends on the amount of work, how hard the old material is to remove and access to the work. We give a clear quote before we start.
What to tell us for a quote
When you call or email, these details help:
- How many joints, rooms or windows are involved
- Where the property is
- If someone has resealed it before
- If it’s domestic, commercial or a hotel
Asking for a quote is easy: let us know the job and the location, and roughly how big it is. A few photos by email make the job easier to understand, and we will take it from there.
What we cannot put right
Honest advice matters more to us than a booking, so here’s what sealant can’t fix:
- Plumbing faults behind the sealant
- Movement caused by a poorly fitted tray or bath
- Cracked trays, tiles or worktops
If you are not sure, just drop us a line at info@mrmastic.co.uk and we will give you a straight answer.
Joints and surfaces we work on
- Skirting & floors
- Windows & doors
- Kitchens
- Plot handovers
- Show homes
- Bathrooms & en suites
