South Lanarkshire · Scotland
New Build Mastic in Strathaven
Plot mastic for developers and snagging failed sealant in new homes in Strathaven, with a 12-month guarantee on every job. Ask us for a quote.
- Cracked caulk along new skirting
- Internal frame sealant that has split
- Cracks appearing as a new home settles
How we handle new build mastic in Strathaven
Failed shower seals, gaps along the skirting and messy beads are common items on a new-home snagging list. If you are still within the builder’s snagging or warranty period, tell them first and if that stalls, we can do it. We work on kitchens, plot handovers and windows & doors, and common reasons people get in touch are worktop and upstand sealant coming away and gaps between new skirting and floors.
Many newer homes in Scotland are timber-framed and settle as they dry out, so skirting and floor joints can open up. In older homes, timber floors move through the year too.
The work is guaranteed for twelve months. If something is not right with it in that time, tell us and we will put it right.
- Location
- Strathaven (ML10)
- Region
- South Lanarkshire
- Cover
- 12 months on all our work
- Price
- A clear price before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Signs you need new build mastic in Strathaven
The first winter with the heating on dries a new home quickly. Skirting, frames and worktops pull away slightly and cracked sealant shows up.
Any of these means the joints need attention:
- Skirting joints opening in the first winter
- Cracks appearing as a new home settles
- Shower seals failing in the first year or two
- Worktop and upstand sealant coming away
For jobs in and around Strathaven, choosing the right material for each joint is as important as a tidy finish.
What your quote should include
- What happens if the job turns out different
- Who turns up on the day
- How the joint is cleaned and prepared
- Is the old sealant removed completely?
The process
On the day, there’s very little for you to do. Point us to the joints and we’ll get on with it. The job generally takes anything from a few hours to several days, depending on the number of plots, including the tidy-up. Outdoor work around Strathaven depends on the weather, as sealant needs a dry surface, so external jobs may need to move if the day turns wet. Indoor work goes ahead whatever the weather.
- We start by going through the snagging items or plot schedule with you.
- The failed sealant is removed completely down to clean surfaces.
- Joints are vacuumed and cleaned of building dust.
- Primer goes on where the surface and product need it, then the new sealant.
- We tool every joint neatly and tell you when each area can be used.
How to prepare
- Let us know about parking restrictions
- On commercial sites, let us know about site rules
- Let us know about earlier repairs to the joints
How to get a quote
For new build mastic in Strathaven, drop us a line at info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.
Related advice
How the job changes by surface
Show homes
We can refresh show-home sealant that has discoloured or been knocked. We cut it out and reseal neatly.
Bathrooms and en suites
Trays and baths in new builds settle as they’re used. The joint is stripped back before the new bead goes in with baths filled first.
Landlords, agents and businesses in Strathaven
We work for landlords and letting agents as well as householders. Resealing between tenancies keeps a property looking cared for.
If you manage several properties in or around Strathaven, several properties can go on one quote. Send us the addresses and the work at each.
Why act early in Strathaven
DIY kits do not solve the main problems with new-build sealant: grit, unprimed surfaces and old layers underneath. Proper removal and preparation are what make it last. Exposed walls in smaller Scottish places take a lot of wind and rain, and once water gets behind a failed joint, damp in stone or harled walls is slow to dry out.
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.
Why Strathaven customers choose us
- Old sealant always removed completely
- Over 20 years’ experience
- Trusted Arbo and Everbuild sealants
- Rated 4.9 stars on Google
See what affects the cost and our reviews.
What new build mastic looks like in Strathaven
Many new homes in Scotland are timber-framed, and as the frame dries and settles, skirting and sealant joints can open up. The west of Scotland 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 Strathaven, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Strathaven is about 6 miles south of Hamilton, in South Lanarkshire. From the centre of Strathaven to the outskirts, new build mastic is available for homes and businesses alike. Strathaven is one of 139 towns and villages in South Lanarkshire we cover. Our Glasgow page covers work nearby.
All of ML10 is covered for new build mastic. Streets in the area include Main Street, Station Road and Loudon Street, and we cover them all. We also cover the places around Strathaven: Sandford (2 miles south-east), Glassford (2 miles north-east), Chapelton (3 miles north-west), Stonehouse (3 miles east) and Quarter (4 miles north). We also work in nearby towns such as East Kilbride (7 miles north-west), Hamilton (6 miles north), Cambuslang (10 miles north), Uddingston (10 miles north), Blantyre (8 miles north) and Larkhall (5 miles north-east). Being one of South Lanarkshire’s larger places, Strathaven has homes, rented property and businesses of every kind.
What’s near Strathaven
Other landmarks nearby include Strathaven Castle (less than half a mile south) and Stonehouse Hospital (3 miles east).
Strathaven questions
Is Strathaven within the area you cover?
Yes, Strathaven 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.
What guarantee comes with new build mastic in Strathaven?
Every job comes with our one-year guarantee, wherever it is. We are fully insured, and an ARBOMaster approved applicator.
How long will you be here?
As a guide, most jobs take a few hours for most snagging lists, longer for a run of plots. Bigger jobs take longer.
Do you remove the old sealant?
Yes. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.
Is it worth trying it myself?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional, while a short indoor joint may be within reach.
Do you work for developers?
Yes. We carry out plot mastic and second-fix sealing for builders and developers. Send us the plot schedule and we will quote.
When is the sealant fully cured?
Most sealants are touch-dry well before they’re fully cured. We will give you the cure time for the product we used before we leave.
Can you do several jobs on one visit?
Of course. Combining jobs makes good use of the visit.
Aftercare tips
Once the sealant has cured, a few habits help it last:
- Open a window or run the fan after bathing
- Keep photos and emails about snagging items
- Clean sealant with mild detergent, not abrasives
- Report sealant problems to your builder during the snagging period
Keep an eye on the joints over the first couple of years. Hairline gaps can open as timber and plaster dry, and they’re simple to reseal once movement has slowed.
Leave a failed new-build seal and water can reach the floor and the ceiling below. Catching it early keeps the fix to the sealant and protects the rest of the house.
More services for Strathaven
When it isn’t the sealant
We won’t take on work that won’t last, so here’s what sealant can’t put right:
- A tray or bath that is not properly supported, until it’s fixed
- Disputes or warranty claims with your builder
- Plumbing faults behind the sealant
If in doubt, email us at info@mrmastic.co.uk and we’ll say what we think.
Surfaces we seal
- Skirting & floors
- Show homes
- Bathrooms & en suites
- Windows & doors
- Kitchens
- Plot handovers