East Lothian · Scotland
Prestonpans New Build Mastic
Plot mastic for developers and snagging failed sealant in new homes for householders, landlords and businesses in Prestonpans. Fully insured, ARBOMaster approved and guaranteed for a year.
- Gaps opening as the house dries out and settles
- Sealant that never bonded to the surface
- Sealant work across a run of new homes
How we handle new build mastic in Prestonpans
In a new home, every joint should have a clean, even bead. When the finish is smeared, patchy or already cracking, it’s worth putting right early, before water gets into the floor or walls. We work on show homes, plot handovers and windows & doors, and the jobs we see most are beads laid onto grit and dust from the build and kitchen sealant that has pulled off the wall.
New homes in smaller Scottish places are often single plots, self-builds or small developments. They need their sealant and floor joints finished just as carefully as on a big site.
Your job is guaranteed for a year, as with all our work.
- Location
- Prestonpans (EH32)
- Region
- East Lothian
- Guarantee
- A year, on every job
- Price
- A clear price before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Can I do it myself?
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
What happens if it’s left?
Resealing everything on a snagging list in one visit is generally simpler than chasing joints one at a time. It’s one visit, one quote and one set of cure times for the lot. When the nearest tradesperson is a drive away, it’s tempting to leave a small leak, but water behind a failed seal does the most damage when nobody’s watching.
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.
Why us?
- One-year guarantee on every job
- We are fully insured
- Homes, businesses and hotels
- Over 20 years’ experience
See what affects the cost and our reviews.
What we can’t put right
We will not take on work that won’t last, so here’s what sealant cannot put right:
- Your warranty claim itself, which is between you and the builder
- Plumbing faults behind the sealant
- A tray or bath that isn’t properly supported, until it’s fixed
Not sure which it is? You can email us at info@mrmastic.co.uk and we’ll tell you honestly before you book.
Surfaces we seal
- Bathrooms & en suites
- Windows & doors
- Kitchens
- Show homes
- Skirting & floors
- Plot handovers
Nearby places to Prestonpans
Also in Prestonpans
Quotes for new build mastic in Prestonpans
Call for a quick quote. What matters most is:
- Whether old sealant or filler has to be cut out
- When we can work, for business premises
- How easy the joints are to reach
- Whether there’s mould to deal with
The cost depends on the size of the job, how much old material has to come out and how easy the joints are to reach. You will have a clear quote before any work starts, so you know where you stand.
Asking for a quote
When you contact us, these details help:
- Any previous sealing or DIY work
- Access, such as stairs, a lift or height
- The address or postcode of the job
- Photos by email, if that is easy
Every job is quoted individually, so the first step is telling us about yours. Just drop us a line at info@mrmastic.co.uk with the details, and pictures are welcome.
Signs you need new build mastic in Prestonpans
Fresh sealant can be knocked or cut by trades finishing off. If it’s disturbed before curing, the joint can be left weak, and the problem shows up after you move in.
If you can see any of these, it’s time to have the joints looked at:
- Worktop and upstand sealant coming away
- Leaking shower tray seals in a new home
- Joints pulling apart as timber shrinks
- Gaps between new skirting and floors
Around Prestonpans, as everywhere, new build mastic is only as good as the preparation behind it.
What to look for in a quote
- How long the guarantee is
- Which colour the sealant will be
- What product goes in the joint
- When the joint can take water or movement
Questions from Prestonpans
Do you cover Prestonpans for new build mastic?
Yes. We work across all of Scotland, and Prestonpans is part of that. Just drop us a line at info@mrmastic.co.uk with a few details of the job, and we’ll give you a clear quote.
Do you work for landlords with property near Prestonpans station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. You can email us at info@mrmastic.co.uk with the details for a clear quote.
Should I wait before resealing?
Any seal that’s leaking should be redone right away. For small cosmetic gaps, waiting until the house has settled can save doing them twice.
Can I do 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.
Why has my new-build shower seal failed already?
A new house dries and settles for a year or two, and sealant is often rushed onto dusty, unprimed surfaces. Either can make it fail early.
How long will you be here?
That depends on the amount of work, but as a guide it takes a few hours for most snagging lists, longer for a run of plots. We’ll give you a better idea when we quote.
What information do you need?
The location, the problem and the rough size of the job. Photos by email help too.
Can new sealant go on top of the old bead?
No. Sealing over old sealant looks fine for a few weeks, then lifts. We remove every bit of the old bead before resealing.
Landlord and commercial work in Prestonpans
Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.
Landlords and letting agents in Prestonpans can book us as well as householders. Sealant work between tenants keeps a property looking cared for before the next move-in.
What happens on the day
A visit follows a simple pattern: we look at the joints together, mask and protect the surrounding surfaces, carry out the job and tidy away. Most jobs take a few hours for most snagging lists, longer for a run of plots. In smaller Scottish places, parking is usually less of an issue than access and distance. Let us know how to find you and how to reach the joints.
- We look at why each joint failed, including any movement.
- Old sealant is cut out and the joints cleaned.
- Joints are dried and primed where the product calls for it.
- New sealant goes in, with baths filled first so they’re at their heaviest.
- We check every joint and leave you with the cure times.
Getting ready for the visit
- Let us know about stairs, lifts or work at height
- Move anything stored near the joints
- On commercial sites, let us know about site rules
Get a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and add photos by email if you can.
Related advice
What new build mastic looks like in Prestonpans
Prestonpans 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. Timber frame is common in newer Scottish homes, so skirting and sealant joints can open up as the building settles.
If you’ve bought a new home near Prestonpans station, the sealant around baths, showers and frames is worth checking in the first year or two.
Prestonpans is about 8 miles north-east of Bonnyrigg, in East Lothian. Prestonpans gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Prestonpans is one of 48 places in East Lothian we cover. We also work in Edinburgh, about 9 miles from Prestonpans.
Our applicators cover all of EH32 for new build mastic and the streets around it. Streets in the area include High Street, Station Road and Gardiner Square. Prestonpans sits on or near the B1348 and B1349. If you’re just outside Prestonpans, we cover Prestongrange (1 mile south-west), Cockenzie and Port Seton (1 mile north-east), Seton (1 mile east), Tranent (2 miles south-east) and Elphinstone (2 miles south). Further out, we also cover Musselburgh (3 miles west), Haddington (8 miles east), North Berwick (12 miles north-east), Longniddry (4 miles east), Gullane (8 miles north-east) and East Linton (13 miles east). As one of the bigger places in East Lothian, Prestonpans has every kind of property, from flats to offices.
Local landmarks in Prestonpans
Typical jobs here are in homes near Gothenburg Tavern and the streets around them. There’s a railway station in Prestonpans itself: Prestonpans station. Well-known places in the area include Seton Castle (1.9 miles east) and Battle of Prestonpans Jacobite Museum (less than half a mile north-west).