East Lothian · Scotland
New-build mastic & snagging in Cockenzie and Port Seton, East Lothian
Specialist new build mastic for Cockenzie and Port Seton: careful preparation, the right product and tidy work. Ask us for a quick quote.
- New-build shower sealant that has already split
- Worktop and upstand sealant coming away
- Untidy sealant flagged on a snagging list
How we handle new build mastic in Cockenzie and Port Seton
Across Cockenzie and Port Seton, we work for both new-home owners and the builders handing those homes over. One shower or a whole phase of plots, the method does not change: remove, clean, prime where needed, then a neat new bead. We work on kitchens, bathrooms & en suites and plot handovers, and common reasons people get in touch are cracks appearing as a new home settles and internal frame sealant that has split.
Timber frame is common in newer Scottish homes, and it settles over the first years, which shows as gaps at skirtings and floor joints. Older stone-built homes, meanwhile, often have timber floors that move with the seasons.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Location
- Cockenzie and Port Seton (EH32)
- Region
- East Lothian
- Cover
- 12 months on all our work
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
What we do, step by step
You don’t need to clear the whole room or building, only the area right around the joints. Everything nearby is protected, and the job takes anything from a few hours to several days, depending on the number of plots in most cases. Outside jobs in Cockenzie and Port Seton need a dry day, because sealant won’t bond to a wet joint, so an outdoor job can move if the forecast changes. Work indoors is not affected.
- We start by going through the snagging items or plot schedule with you.
- The failed sealant is removed completely down to clean surfaces.
- We clean out the dust and grit left from the build.
- We prime where needed and apply a sealant suited to each joint.
- We tool every joint neatly and tell you when each area can be used.
Getting ready for the visit
- Let us know if you’ve seen damp or leaks
- Move anything stored near the joints
- Let us know about earlier repairs to the joints
Getting a quote
Want a quote for new build mastic? Please send an email to info@mrmastic.co.uk and tell us about the job. We’ll explain what we’d do and give you a clear price before we start.
Read more
Surface by surface
Bathrooms and en suites
Trays and baths in new builds settle as they’re used. We reseal once the old bead is fully out.
Kitchens
Beside the sink, the joint takes water every day. We use a sealant suited to kitchens suited to the job.
Common questions in Cockenzie and Port Seton
Do you cover smaller places like Cockenzie and Port Seton?
Yes. Cockenzie and Port Seton 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.
Do you cover Cockenzie and Port Seton for new build mastic?
Yes, Cockenzie and Port Seton is within the area we cover. Our work covers the whole of Scotland. Just email us at info@mrmastic.co.uk with a few details of the job, and we will give you a clear price.
Can I send you my snagging list?
Yes. Send us the sealant items on the list, with pictures if you can and we’ll give you a quote. We’ll flag anything that needs another trade.
Will it make a mess?
Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.
Are you fully insured?
Yes. We’re fully insured.
Can I do it myself?
You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
Do you use white or clear sealant?
It depends on the joint: white or clear in most bathrooms, and a colour to suit worktops, frames and floors elsewhere. We agree the colour before we start.
How long does new build mastic take?
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 will give you a better idea when we quote.
Leave it or put it right?
Running a new bead over the builder’s sealant might look tidy for a few weeks, but it cannot bond to what’s underneath. A lasting seal starts with removing the old one completely. When the nearest tradesperson is a drive away, it’s tempting to leave a small leak, but water through a failed joint keeps working away until it’s fixed.
Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. You’ll know the price before we begin.
Why us?
- A choice of colours where the product allows
- 180+ five-star Google reviews
- Sealant colour chosen to suit
- An ARBOMaster approved applicator
Read what affects the cost and customer reviews.
Landlords, agents and businesses in Cockenzie and Port Seton
Housing providers, facilities teams and property managers book us too in Cockenzie and Port Seton and across East Lothian. Several sites can go on one quote, and we are fully insured for the work.
Letting agents often deal with us directly. Tell us the address, the job and how access works and we’ll quote.
Looking after it afterwards
Good habits help new joints last longer. A few tips:
- Wipe joints with warm soapy water
- Get a leaking seal dealt with straight away
- Put sealant faults on your snagging list early
- Record problems with dated pictures
Wipe the sealant with warm soapy water. Avoid abrasive pads and strong solvents.
Early snagging is easier snagging. Left alone, a small crack can become a leak.
Also near Cockenzie and Port Seton
What else we do in Cockenzie and Port Seton
Honest limits
We’d rather tell you now than do work that will not last, so here’s what sealant can’t put right:
- Your warranty claim itself, which is between you and the builder
- A tray or bath that isn’t properly supported, until it’s fixed
- Cracking that points to a structural problem
If in doubt, send an email to info@mrmastic.co.uk and we will say what we think.
Joints and surfaces we work on
- Bathrooms & en suites
- Skirting & floors
- Windows & doors
- Kitchens
- Show homes
- Plot handovers
New build mastic in Cockenzie and Port Seton: local notes
Cockenzie and Port Seton is close to 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.
In and around Cockenzie and Port Seton, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint. For new homes near Prestonpans station, it’s worth checking the sealant early, while snags are still fresh.
Cockenzie and Port Seton is about 4 miles north-east of Musselburgh, in East Lothian. Cockenzie and Port Seton gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Across East Lothian, we cover 48 places, Cockenzie and Port Seton among them. Our Edinburgh page covers work nearby, about 10 miles away.
We cover every part of EH32 for new build mastic and the streets around it. Whether your property is on High Street, Park View West and North Seton Park or a nearby road, our applicators can take on the job. You’ll find Cockenzie and Port Seton on the B1348 and B6371, which makes it straightforward to reach. Neighbouring places we cover for new build mastic include Seton (1 mile south), Prestonpans (1 mile south-west), Tranent (2 miles south), Prestongrange (2 miles south-west) and Macmerry (3 miles south-east). Within a short drive, we also cover Musselburgh (4 miles south-west), Haddington (7 miles east), North Berwick (11 miles north-east), Wallyford (3 miles south-west), Gullane (7 miles north-east) and East Linton (11 miles east). Being one of East Lothian’s larger places, Cockenzie and Port Seton has every kind of property, from flats to offices.
Local landmarks in Cockenzie and Port Seton
Cockenzie and Port Seton’s nearest station is Prestonpans station, about 1.5 miles south-west of the centre. Nearby you’ll also find Seton Castle (0.8 miles south-east) and Battle of Prestonpans Jacobite Museum (1.5 miles south-west).
DIY versus a professional finish
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.