Inverclyde · Scotland
Wemyss Bay New Build Mastic
Our applicators work in Wemyss Bay on plot mastic for developers and snagging failed sealant in new homes. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Internal frame sealant that has split
- Untidy sealant flagged on a snagging list
- Shower seals failing in the first year or two
New build mastic in Wemyss Bay, done properly
Some owners wait for the first year’s movement before having joints redone. That makes sense for small gaps that are just cosmetic, but a seal that’s letting water through needs doing now. We work on windows & doors, show homes and kitchens, and people most often call us about sealant work across a run of new homes and joints pulling apart as timber shrinks.
Many newer homes in Scotland are timber-framed and settle as they dry out, which shows as gaps at skirtings and floor joints. Older stone-built homes, meanwhile, often have timber floors that move with the seasons.
Each job carries a 12-month guarantee.
- Place
- Wemyss Bay (PA18)
- Wider area
- Inverclyde
- Guarantee
- 12 months on all our work
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026

DIY versus a professional finish
If you’ve already had a go yourself, that is fine. We cut it out and start again.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
The process
When we get to you, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. After that, the work takes anything from a few hours to several days, depending on the number of plots. In smaller Scottish places, parking is generally less of an issue than access and distance. Tell us how to find the property and how to reach the work.
- First, the list of joints is agreed from your snagging sheet or plot schedule.
- The failed sealant is removed completely, 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.
- Each bead is tooled and the cure times explained.
Getting ready for the visit
- Keep children and pets away from the work area
- Tell us if parking is tricky
- Tell us about access, such as stairs, a lift or high-level joints
Get a quote
We quote each job on its own, so start by telling us what you need. Simply send an email to info@mrmastic.co.uk and describe the job.
Related advice
For landlords and businesses
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
Different surfaces, different methods
Windows and doors
A draught at a new window can be a missed or failed joint. We look at the joints and reseal where needed.
Show homes
Bathrooms, kitchens and frames in show homes are sealed or resealed to a neat finish to a tidy standard. Tell us when the home is open so we can plan around it.
Other services in Wemyss Bay
What new build mastic looks like in Wemyss Bay
Wemyss Bay is within about 1 mile of the coast. Plot mastic on new homes near the coast takes more weather than it would inland, so any gaps are best picked up early. Wemyss Bay is in the west of Scotland, which is wetter than the east, which means plot mastic and the sealant in new homes has to cope with a lot of rain.
In and around Wemyss Bay, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Wemyss Bay is about 6 miles south-west of Greenock, in Inverclyde. Every kind of property in Wemyss Bay can book us for new build mastic, old or new, large or small. Every job comes with our 12-month guarantee. 19 places in Inverclyde are on our list. We also work in Glasgow, around 24 miles away.
Postcode districts we cover here for new build mastic: PA18. We cover properties on Lomond Road, Elm Walk and Ryan Road. Neighbouring places we cover for new build mastic include Skelmorlie (1 mile south), Inverkip (2 miles north-east), Innellan (3 miles west), Toward (4 miles west) and Bullwood (4 miles north-west). Larger places within reach include Greenock (6 miles north-east), Port Glasgow (9 miles east), Gourock (5 miles north-east), Cartsdyke (7 miles north-east), Kilmacolm (10 miles east) and Mid Auchinleck (9 miles east).
Around Wemyss Bay
The closest station to Wemyss Bay is Wemyss Bay station, about 0.8 miles south. Well-known places in the area include Skelmorlie Castle (2.5 miles south) and Ravenscraig Hospital (5 miles north-east). The countryside around Wemyss Bay includes Creuch Hill.
When to call us in Wemyss Bay
Not every new-build joint gets the right sealant: decorators’ caulk in a wet area, or a stiff sealant where there’s movement. Both fail early.
People generally contact us after spotting one of these:
- Sealant applied over dusty or wet surfaces
- Skirting joints opening in the first winter
- Worktop and upstand sealant coming away
- Frame joints opening as the plaster dries
For new homes near Wemyss Bay station, it’s worth checking the sealant early, while snags are still fresh.
What to look for in a quote
- What the quote includes, VAT included or not
- Who turns up on the day
- What guarantee comes with the work
- What insurance they hold
Quotes for new build mastic in Wemyss Bay
We quote each job individually. These are the things that affect it:
- The number and length of the joints
- Any working-time requirements on site
- Whether old sealant or filler has to be cut out
- The number of rooms or windows
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, plus any working-time requirements on site. Call for a quick quote and we will go through it with you.
Helping us quote
Before you ask for a quote, have a think about:
- Roughly how big the job is
- If someone has resealed it before
- If it’s domestic, commercial or a hotel
- Where the job is, and your postcode
Want a quote for new build mastic? Please drop us a line at info@mrmastic.co.uk and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
How to look after the new joints
Aftercare is simple, and it makes a real difference:
- Ventilate bathrooms well, especially in the first year
- Get a leaking seal dealt with right away
- Report sealant problems to your builder during the snagging period
- Avoid scourers and strong chemicals on sealant
Keep an eye on the joints over the first couple of years. Small gaps can appear as the house dries, and they’re simple to reseal once movement has slowed.
Early snagging is easier snagging. Small faults turn into leaks if left.
Questions from Wemyss Bay
Can you help a landlord with a rental near Wemyss Bay station?
Yes, rental work is part of what we do. You can drop us a line at info@mrmastic.co.uk with the address and a few details, and we’ll give you a fixed price before we start.
Will you come out to Wemyss Bay?
Yes. Wemyss Bay is within the area we cover, which takes in towns, villages and rural addresses. We work across all of Scotland. Just mention lanes, gates or anything else about the route when you book.
Are you an approved applicator?
Yes. We hold ARBOMaster approved applicator status and we are fully insured too.
Can I add another job to the visit?
Of course. Doing several areas at once is usually more efficient, so mention them when you ask for a quote.
Do you take on second-fix sealing for builders?
Yes. We take on second-fix sealant work across new plots. We clean and prime joints properly to keep callbacks down.
Where are you based?
Our base is Crawley. We work across South East England, London and Scotland.
Can new sealant go on top of the old bead?
No. Fresh silicone doesn’t stick to the old layer, so it soon lifts and traps water. The old sealant always comes out first.
Do you work for hotels and businesses?
Yes, regularly. We can plan bigger jobs in stages to suit the site.
