Scottish Borders · Scotland
Ashiestiel New Build Mastic
Plot mastic for developers and snagging failed sealant in new homes in Ashiestiel, with a 12-month guarantee on every job. Ask us for a quote.
- Worktop and upstand sealant coming away
- Untidy sealant flagged on a snagging list
- Cracked sealant around new window and door frames
Quotes for new build mastic in Ashiestiel
Some jobs are bigger than they look, and some smaller. The main factors:
- Whether old sealant or filler has to be cut out
- Which sealant suits the joint
- The number of rooms or windows
- Access and height
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.
What we need to know
To help us quote quickly, let us know:
- The problem you’ve noticed
- The address or postcode of the job
- If someone has resealed it before
- The type of property
Call for a quick quote, or email us if that is easier. Describe what needs sealing and we’ll explain what’s involved and give you a clear price.
How we handle new build mastic in Ashiestiel
Across Ashiestiel, we work for both new-home owners and the builders handing those homes over. Whether it’s one en suite or a run of plots, the method is the same: remove, clean, prime where needed, then a neat new bead. We work on kitchens, bathrooms & en suites and skirting & floors, and common reasons people get in touch are untidy sealant flagged on a snagging list and gaps behind new kitchen upstands.
Timber frame is common in newer Scottish homes, and it settles over the first years, so skirting and floor joints can open up. In older homes, timber floors move through the year too.
All our work comes with a 12-month guarantee.
- Place
- Ashiestiel (TD1)
- Region
- Scottish Borders
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Towns and villages near Ashiestiel
What else we do in Ashiestiel
Different surfaces, different methods
Plot handovers
Taking time over preparation reduces return visits. We clean out building dust before sealing and prime where the product needs it.
Windows and doors
Internal joints between frames and plaster often crack as a new house dries. We cut out the cracked bead and reseal with a flexible sealant.
Common questions in Ashiestiel
Is Ashiestiel in your area for new build mastic?
Yes, Ashiestiel is within the area we cover. Our work covers the whole of Scotland. You can drop us a line at info@mrmastic.co.uk and let us know what needs doing.
I let a flat near Galashiels station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just drop us a line at info@mrmastic.co.uk with the address and what needs doing, and we’ll give you a clear quote.
How long will you be here?
Most jobs take anything from a few hours to several days, depending on the number of plots, including preparation and clearing up. We will confirm how long when we quote.
Can new sealant go on top of the old bead?
No. We always remove the existing bead, then clean and prime the joint, before resealing.
Can you match the sealant colour to my new kitchen or bathroom?
We use white, clear or a colour to suit the finishes. Let us know your preference when you ask for a quote.
Is it messy?
No. The area is protected while we work and cleaned up afterwards.
Is there any odour?
That depends on the sealant. Some products have a noticeable smell, others very little.
Why does sealant fail so quickly in new builds?
Lots of new homes see sealant crack early, because the house is drying and settling. Rushed application on dusty surfaces makes it worse.
When to call us in Ashiestiel
Sealant applied onto damp surfaces does not bond well. Site programmes do not always leave time for joints to dry first.
Common reasons people contact us are:
- Gaps opening as the house dries out and settles
- Gaps behind new kitchen upstands
- Sealant work across a run of new homes
- Messy sealant that spoils new finishes
In and around Ashiestiel, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
What your quote should include
- What the quote includes, VAT included or not
- Whether the sealant suits the joint
- How hidden problems are handled
- What guarantee comes with the work
Work for landlords, hotels and businesses
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
What happens if it’s left?
DIY kits do not solve the main problems with new-build sealant: dust, no primer and old sealant left in the joint. Cutting out, cleaning and priming are what make the difference. Around Ashiestiel, water from a failed joint in an older stone home can soak into timber and plaster.
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all play a part, and we will explain the quote if you ask.
What you get with us
- ARBOMaster approved applicator
- Sealant colour chosen to suit
- Experience in homes, commercial sites and hotels
- Over 20 years’ experience
Read how sealant jobs are priced and our reviews.
What happens on the day
Once we are on site, 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. Outside jobs in Ashiestiel need a dry day, because sealant won’t bond to a wet joint, so external jobs may need to move if the day turns wet. Work indoors isn’t affected.
- We go through the snagging list or plot schedule and agree the joints to do.
- Failed or untidy sealant is cut out completely.
- Each joint is cleaned of dust and grit, then primed if required.
- We apply a sealant that suits each joint and tool it to a neat finish.
- Finally, each room is checked and you are given the cure time.
Preparing for the visit
- Mention any sign-in or site rules at work premises
- Try not to wet indoor joints just before the visit
- Tell us about any water getting in
Get a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will explain how we’d tackle it. When it suits you, email us at info@mrmastic.co.uk.
Advice
Aftercare tips
Good habits help new joints last longer. A few tips:
- Report sealant problems to your builder during the snagging period
- Avoid running a DIY bead over the old one
- Look at the sealant regularly in the first couple of years
- Photograph failed sealant before it’s redone
Keep pictures of the joints and any snagging correspondence with your builder. It’s useful if you need to raise other issues later.
Report failed sealant to the builder while you’re in the snagging period. After that, putting it right may fall to you, so raise it early.
What new build mastic looks like in Ashiestiel
Many new homes in Scotland are timber-framed, so skirting and sealant joints can open up as the building settles.
For new homes near Galashiels station, it’s worth checking the sealant early, while snags are still fresh.
Ashiestiel is about 4 miles west of Galashiels, in the Scottish Borders. Homes, rented property, offices and hotels in Ashiestiel is covered for new build mastic, old or new, large or small. Every job comes with our 12-month guarantee. Ashiestiel is one of 89 towns and villages in the Scottish Borders we cover. For nearby work, see our Edinburgh page (26 miles or so).
Here we cover the TD1 postcode area for new build mastic. We also cover the places around Ashiestiel: Peel (1 mile south-east), Caddonfoot (1 mile east), Clovenfords (1 mile north-east), Broadmeadows (3 miles south) and Yarrowford (3 miles south-west). Within a short drive, we also cover Hawick (13 miles south), Peebles (12 miles west), Selkirk (5 miles south-east), Wilton (13 miles south), Innerleithen (6 miles west) and Melrose (7 miles east).
Around Ashiestiel
The closest station to Ashiestiel is Galashiels station, about 4 miles east. A little further out are Old Gala House (3.8 miles east). For a walk, there’s Ashiesteel Hill.