North Lanarkshire · Scotland
New Stevenston New Build Mastic
Our applicators work in New Stevenston on plot mastic for developers and snagging failed sealant in new homes. Old sealant removed completely, joints prepared properly and a one-year guarantee.
- Cracked sealant around new window and door frames
- Smeared, uneven beads picked up at snagging
- Gaps between new skirting and floors
How we handle new build mastic in New Stevenston
Some new-home owners let the house settle before resealing. That makes sense for small gaps that are just cosmetic, but a seal that’s letting water through needs doing now. We work on bathrooms & en suites, skirting & floors and windows & doors, and people most often call us about beads laid onto grit and dust from the build and joints pulling apart as timber shrinks.
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.
We guarantee the work for a year. If something is not right with it in that time, tell us and we’ll put it right.
- Location
- New Stevenston (ML1, ML4)
- Wider area
- North Lanarkshire
- Cover
- One year on every job
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Updated
- 26 October 2026

Different surfaces, different methods
Windows and doors
Draughts around new frames are often a sealant gap. We check and reseal the frame edges.
Show homes
Tired or marked sealant in a show home can be renewed. The old bead comes out and a clean new one goes in.
How we quote for new build mastic
The price is agreed before any work begins. It takes into account:
- When we can work, for business premises
- The amount of work
- How much old sealant there is and how hard it is to remove
- Whether there’s mould to deal with
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please send an email to info@mrmastic.co.uk.
What we need to know
Before you ask for a quote, have a think about:
- Where the property is
- Access, such as stairs, a lift or height
- How many joints, rooms or windows are involved
- What’s wrong with the joints now
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we’ll explain what’s involved and give you a clear price.
Leave it or put it right?
Small cosmetic gaps can wait for the house to settle, but a leaking seal cannot. Not sure whether yours can wait? You can drop us a line at info@mrmastic.co.uk with a few pictures and we will give you a straight answer. Exposed walls in smaller Scottish places take a lot of wind and rain, and damp in stone or harled walls takes a long time to dry once water gets behind a joint.
Doing several joints on one visit is generally more efficient than separate visits, so it’s worth mentioning everything you’d like done. We will give you a clear quote for the lot.
Why New Stevenston clients choose us
- Colour agreed with you before we start
- We never seal over old sealant
- We leave the area clean and tidy
- Rated 4.9 stars on Google
When something else is needed
We’d rather tell you now than do work that will not last, so here’s what sealant can’t put right:
- Broken tiles or a split tray
- A tray or bath that is not properly supported, until it’s fixed
- Disputes or warranty claims with your builder
If you’re not sure, just drop us a line at info@mrmastic.co.uk and we will give you a straight answer before booking.
Where we work in New Stevenston
- Bathrooms & en suites
- Skirting & floors
- Plot handovers
- Show homes
- Windows & doors
- Kitchens
What we do, step by step
At the end, we look at the finished work together and tell you how long to leave it. The work normally takes a few hours for most snagging lists, longer for a run of plots, depending on how much there is to do. 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.
- 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.
- 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.
- Each bead is tooled and the cure times explained.
Before we arrive
- Where the joints are inside, avoid wetting them before we arrive
- Tell us about any water getting in
- Keep children and pets away from the work area
How to get 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’ll give you a clear quote before any work starts.
Read more
Places near New Stevenston
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Aftercare tips
Aftercare is simple, and it makes a real difference:
- Record problems with dated photos
- Raise failed sealant with the developer while you are covered
- Clean sealant with mild detergent, not abrasives
- Ventilate bathrooms well, especially in the first year
Wipe the sealant with warm soapy water. Avoid abrasive pads and strong solvents as they wear the bead.
Lifting sealant traps moisture and mould behind it. Dealing with it before it goes black keeps the job straightforward.
Landlord and commercial work in New Stevenston
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. We can quote for more than one property at once.
Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
New build mastic around New Stevenston
Timber frame is common in newer Scottish homes, and as the frame dries and settles, skirting and sealant joints can open up.
In and around New Stevenston, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint. If you’ve bought a new home near Holytown station, the sealant around baths, showers and frames is worth checking in the first year or two.
New Stevenston is about 1 mile north of Motherwell, in North Lanarkshire. Whether you are in the middle of New Stevenston or further out, new build mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Across North Lanarkshire, we cover 89 places, and New Stevenston is one of them. You can also see our page for Glasgow, about 12 miles away.
Work in ML1 and ML4 is quoted and booked the same way as anywhere else. Whether your property is on Burn Lane, Clyde Lane and Park Avenue or a nearby road, our applicators can take on the job. Other places close to New Stevenston include Holytown (1 mile north-east), Carfin (1 mile south-east), Newarthill (2 miles east), Calderbank (2 miles north) and Chapelhall (2 miles north-east). We also work in nearby towns such as Cumbernauld (9 miles north), Coatbridge (3 miles north-west), Airdrie (4 miles north), Wishaw (3 miles south-east), Kilsyth (12 miles north) and Burnfoot (4 miles north).
Near you in New Stevenston
New Stevenston has its own railway station: Holytown station. Other landmarks nearby include Brandon Shopping Centre (1.7 miles south) and Dalzell House (2.8 miles south). Green spaces nearby include Baron's Haugh RSPB Reserve and Strathclyde Loch.
Questions from New Stevenston
Will you come out to New Stevenston?
Yes, New Stevenston is covered. We work across all of Scotland, and smaller places are part of that. Longer journeys are simply planned in advance.
Is New Stevenston in your area for new build mastic?
Yes. We work across all of Scotland, and New Stevenston is part of that. You can email us at info@mrmastic.co.uk and tell us what needs doing, and we’ll send you a clear quote.
Will you leave a mess?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
How long does new build mastic take?
It depends on the size of the job, but as a guide it takes a few hours in a single home. We will tell you when we quote.
Will the old sealant be removed?
Yes, every time. New silicone does not stick to old silicone, so the joint is cleaned back first.
Are you ARBOMaster approved?
Yes. We hold ARBOMaster approved applicator status and we are fully insured too.
Can you reseal over the builder’s sealant?
No. New silicone won’t bond to old silicone, so it soon lifts and traps water. The old sealant always comes out first.
Is there any odour?
It depends on the product. Some smell for a while, some hardly at all, and any smell fades as they cure.
