Scottish Borders · Scotland
Westruther New Build Mastic
Plot mastic for developers and snagging failed sealant in new homes for homeowners, landlords and businesses in Westruther. Fully insured, ARBOMaster approved and guaranteed for a year.
- Joints pulling apart as timber shrinks
- Skirting joints opening in the first winter
- Shower seals failing in the first year or two
How we handle new build mastic in Westruther
Building dust is behind a lot of failed new-build sealant. We clean every joint thoroughly and prime where the surface and product need it, so the sealant actually sticks instead of bonding to the dust. We work on show homes, kitchens and bathrooms & en suites, and the jobs we see most are skirting joints opening in the first winter and messy sealant that spoils new finishes.
Timber frame is common in newer Scottish homes, and it settles over the first years, which shows as gaps at skirtings and floor joints. Older stone-built homes, meanwhile, often have timber floors that move with the seasons.
Whatever the size of the job, it’s backed by our 12-month guarantee in Westruther and across the Scottish Borders.
- Where
- Westruther (TD3)
- Wider area
- Scottish Borders
- Guarantee
- A year, on every job
- Quotes
- A clear price before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026

Questions from Westruther
Is Westruther within the area you cover?
Yes, Westruther is covered. Our work covers the whole of Scotland, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Can you do new build mastic in Westruther?
Yes, Westruther is within the area we cover. Our work covers the whole of Scotland. Just drop us a line at info@mrmastic.co.uk with a few details of the job, and we will give you a clear price.
What do you need from me for a quote?
A short description and the location. We will ask anything else we need to know.
How long should I leave it?
Cure times vary by product and the temperature. We tell you how long to leave it before we go.
Is it worth trying it myself?
That depends on the joint. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.
Can you do several jobs on one visit?
Yes, and it often makes sense. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
Do you take out the old sealant first?
Yes. Sealing over the old bead is the commonest cause of early failure, so we never do it.
Is it messy?
No. We work neatly, protect the area around the joints and tidy up afterwards.
DIY sealant or a professional job?
If you do try it yourself, take your time over the 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.
If you’ve already had a go yourself, that is fine. We cut it out and start again.
Also near Westruther
What else we do in Westruther
Why deal with it now?
Running a new bead over the builder’s sealant might look tidy for a few weeks, but it can’t bond to what’s underneath. Taking it all out and starting again is the only way to get a lasting seal. When the nearest tradesperson is a drive away, it’s tempting to leave a small leak, but water through a failed joint keeps working away until it’s fixed.
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, along with when we can work on site. Ask us for a quote and we’ll explain what it covers.
Why Westruther clients choose us
- A sealant colour to suit the surroundings
- White, clear, grey or coloured to suit, where the product allows
- Arbo and Everbuild products
- Approved under the ARBOMaster scheme
What affects the quote in Westruther
For a quick quote, just ask. What matters most is:
- Working hours on commercial sites
- Access and height
- How many rooms, windows or areas are involved
- Mould in or behind the old joints
Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. You will know the price before we begin.
What we need to know
Photos by email are helpful but not essential. Try to tell us:
- A few pictures by email, if you can
- Access, such as stairs, a lift or height
- The type of property
- The address or postcode of the job
For a quick quote, get us on the phone, or email us if that is easier. Describe what needs sealing and we’ll explain what’s involved before giving you a price.
Joints and finishes in Westruther homes
Many new homes in Scotland are timber-framed, so skirting and sealant joints can open up as the building settles.
In and around Westruther, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Westruther is about 12 miles north-east of Galashiels, in the Scottish Borders. Our applicators cover new build mastic for householders, landlords and businesses in Westruther and nearby. We cover 89 towns and villages across the Scottish Borders, large and small. Our Edinburgh page covers work nearby, about 28 miles away.
All of TD3 is covered for new build mastic. We also cover Gordon (4 miles south), Greenlaw (5 miles south-east), Longformacus (6 miles north-east), Lauder (7 miles west) and Nether Blainslie (7 miles south-west). Further out, we also cover Galashiels (12 miles south-west), Kelso (11 miles south-east), Duns (10 miles east), Melrose (11 miles south-west), Langlee (12 miles south-west) and St Boswells (12 miles south).
What’s near Westruther
Well-known places in the area include Old Thirlestane Castle (4.5 miles west). Open spaces near Westruther include Gordon Moss and Twin Law.
What the job involves on each surface
Kitchens
New-kitchen sealant is often applied in a rush. We take it out and reseal neatly, colour-matched where it shows.
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.
Signs you need new build mastic in Westruther
New homes are full of moisture from plaster, screed and concrete, and it dries out over the first couple of years. Drying timber shrinks and pulls joints apart and the sealant has to cope with the movement.
Common reasons people contact us include:
- Skirting joints opening in the first winter
- Gaps opening as the house dries out and settles
- Sealant applied over dusty or wet surfaces
- Frame joints opening as the plaster dries
Whether the job is in Westruther itself or nearby, the right material for each joint matters as much as a neat finish.
Before you book anyone
- Which colour the sealant will be
- When the joint can take water or movement
- What insurance they hold
- What happens if they find a problem under the old sealant
Looking after it afterwards
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Photograph failed sealant before it’s redone
- Keep water off fresh sealant until it has cured
- Avoid running a DIY bead over the old one
- Open a window or run the fan after bathing
Photograph failed sealant before it’s redone and keep the builder’s replies. It helps if anything else comes up during the warranty period.
Early snagging is easier snagging. Left alone, a small crack can become a leak in a busy bathroom.
How it works
When we arrive, we look over the joints with you first, so there are no surprises. We protect the surfaces around the joints before any work begins. Most jobs take a few hours for most snagging lists, longer for a run of plots. Outdoor work around Westruther depends on the weather, as sealant needs a dry surface, so an outdoor job can move if the forecast changes. Indoor work goes ahead whatever the weather.
- First, the list of joints is agreed from your snagging sheet or plot schedule.
- Every bit of the old builder’s sealant is cut out down to clean surfaces.
- Joints are vacuumed and cleaned of building dust.
- We prime where needed and apply a sealant suited to each joint.
- We tool every joint neatly and tell you when each area can be used.
Preparing for the visit
- Clear the area around the work
- Tell us if parking is tricky
- Plan for the work area to be out of bounds to pets and children
Ask for a quote
To get a quote, email us at info@mrmastic.co.uk and tell us where the job is and what the problem looks like. We will give you a clear price before any work starts.
