Midlothian · Scotland
New Build Mastic in Shawfair
New-build sealant joints in Shawfair need attention? We cut out the old, prepare the joints and apply the right sealant, with a one-year guarantee.
- Sealant work across a run of new homes
- New-build shower sealant that has already split
- Internal frame sealant that has split
New build mastic for homes and businesses in Shawfair
Developers send us the plot schedule and we work through it. Bathrooms, en suites, kitchens, frames and skirting are sealed ready for handover. If you’re dealing with plot mastic for developers ahead of handover and internal frame sealant that has split, we can help, on show homes, plot handovers and skirting & floors alike.
New homes in smaller Scottish places are often single plots, self-builds or small developments. Each needs its sealant and floor joints finished as carefully as on a big site.
Each job carries a 12-month guarantee, whatever its size.

- Location
- Shawfair (EH22, EH21, EH15)
- Wider area
- Midlothian
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Landlord and commercial work in Shawfair
If you manage several properties in or around Shawfair, jobs at different addresses can go on one quote. Send us the addresses and the work at each.
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.
Leave it or put it right?
The builder is generally the first port of call while the snagging or warranty period runs. If it’s slow, or the same joint keeps failing, a proper reseal from a specialist is the next step. 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.
Doing several joints on one visit normally makes better use of the time than several visits. We’ll give you a clear quote for the lot.
Why choose Mr Mastic in Shawfair
- We’re fully insured
- Anti-fungal silicone where joints get wet
- Experience in homes, commercial sites and hotels
- Rated 4.9 stars on Google
Take a look at how sealant jobs are priced and customer reviews.
How the job changes by surface
Plot handovers
Send us the schedule and any sealant specification. We seal bathrooms, kitchens, frames and floors.
Skirting and floors
Floors and skirting move as the house dries and the heating runs. We use a flexible product rather than caulk painted or coloured to suit.
Nearby places to Shawfair
What else we do in Shawfair
Can I do it myself?
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
FAQs for Shawfair
Can you help a landlord with a rental near Shawfair station?
Yes. We work for letting agents and landlords as well as homeowners. You can send an email to info@mrmastic.co.uk with the details for a clear quote.
Do you cover Shawfair for new build mastic?
Yes, Shawfair 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’ll give you a clear quote.
Do you hold any approvals?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.
What does new build mastic cost?
It depends on the job, so we quote each one individually. To get one, drop us a line at info@mrmastic.co.uk with a short description of the job.
Can you do several jobs on one visit?
Yes. Just list everything you need and we will quote it together.
Is there a guarantee?
Yes. Every job comes with our 12-month guarantee.
Can new sealant go on top of the old bead?
No. We always remove the existing bead, the joint cleaned and primed where needed, before resealing.
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 will agree it with you first.
Keeping the joints in good condition
To keep the joints looking good and working properly:
- Raise failed sealant with the developer while you are covered
- Use the extractor fan every time you shower
- Resist patching a failed seal with a tube from the DIY shop
- Avoid scourers and strong chemicals on sealant
Ventilation matters in a new home, which is still drying out. Run the fan or open a window after bathing so moisture doesn’t sit on the sealant.
Early snagging is easier snagging. Small faults turn into leaks if left over time.
What affects the cost of new build mastic
You’ll get a clear quote before any work starts. It’s based on:
- Any working-time requirements on site
- The number and length of the joints
- Mould in or behind the old joints
- Which sealant suits the joint
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. We take all of that into account in your quote.
What we need to know
There’s no need for technical detail. It helps if you can tell us:
- Whether it’s a home or a business
- The address or postcode of the job
- Photos by email, if that is easy
- Whether it has been sealed before
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we will explain what’s involved and give you a clear price.
What new build mastic looks like in Shawfair
Shawfair is within about 2 miles 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. Many new homes in Scotland are timber-framed, so skirting and sealant joints can open up as the building settles.
In and around Shawfair, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint. If you’ve bought a new home near Shawfair station, the sealant around baths, showers and frames is worth checking in the first year or two.
Shawfair is about 2 miles south-west of Musselburgh, in Midlothian. From the centre of Shawfair to the outskirts, we cover new build mastic for every kind of property, from flats and houses to offices and hotels. Our Midlothian coverage runs to 33 places, Shawfair among them.
Here we cover the EH22, EH21 and EH15 postcode area for new build mastic. You will find streets such as Redcroft Road, Archway Avenue and Whitehill Road. Being close to the A6106, Shawfair is easy for our applicators to reach for new build mastic. Close by, we work in Newton Village (1 mile south), Millerhill (1 mile south-east), Newcraighall (1 mile north), Old Craighall (1 mile east) and Joppa (2 miles north). Larger places within reach include Bonnyrigg (4 miles south), Penicuik (8 miles south-west), Loanhead (4 miles south-west), Gorebridge (6 miles south), Newtongrange (4 miles south) and Mayfield (4 miles south-east). Shawfair is among the bigger towns we cover in Midlothian.
Local landmarks in Shawfair
We work in homes and buildings around Drum Park and the streets around them. There’s a railway station in Shawfair itself: Shawfair station. Nearby you will also find Royal Infirmary of Edinburgh (1.7 miles west) and Craigmillar Castle (1.9 miles west). Not far away are Duddingston Loch and The New Leaf Co-op.
What happens on the day
On the day, there’s very little for you to do. Show us the job and we’ll take it from there. The work itself takes a few hours for most snagging lists, longer for a run of plots, including the tidy-up. 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, and the visit is planned around that.
- We start by agreeing which joints are on the list, from the snagging sheet or plot schedule.
- We cut out every bit of the failed or messy sealant.
- Surfaces are cleaned of building dust and primed where needed.
- New sealant suited to each joint is applied and tooled neatly.
- We check every joint and tell you how long each needs to cure.
Before we arrive
- Tell us about access, such as stairs, a lift or high-level joints
- For business premises, tell us about site rules or sign-in
- Tell us about any previous sealing or DIY attempts
Ask for a quote
We don’t publish a price list, because every job is different. Instead, your job gets its own clear quote. To get started, drop us a line at info@mrmastic.co.uk.
