Orkney Islands · Scotland
New-build mastic & snagging in St Mary's, Orkney Islands
Plot mastic for developers and snagging failed sealant in new homes in St Mary's, with a one-year guarantee on every job. Call for a quick quote.
- Frame joints opening as the plaster dries
- Messy sealant that spoils new finishes
- Cracked caulk along new skirting
St Mary's: your questions answered
Is St Mary's within the area you cover?
Yes, St Mary's is covered. Our work covers the whole of Scotland, islands included, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Is St Mary's in your area for new build mastic?
Yes, St Mary's is within the area we cover. We work across all of Scotland. Just drop us a line at info@mrmastic.co.uk with a few details of the job, and we will give you a clear price.
Will the old sealant be removed?
Yes, always, and completely. New sealant will not bond properly to old, so the joint is cleaned back first.
I’m a tenant. Can you help?
Yes, though it’s best to check with your landlord first. Landlords are often happy for the work to be arranged.
What do you put in the joint?
Products from Arbo and Everbuild, among others, picked for each joint. We’ll tell you what we’re using and why.
What should I tell you?
A short description and the location. If we need more, we will ask.
Can I send you my snagging list?
Yes. Send the list and a few pictures of the sealant items, and we’ll quote. We’ll flag anything that needs another trade.
Do I have to be there?
Access is agreed with you when the job is booked. For inside work, that normally means someone being in.
About our new build mastic in St Mary's
If your new home has a leaking shower seal, open skirting joints or untidy sealant, we can help. 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 bathrooms & en suites, windows & doors and kitchens, and common reasons people get in touch are second-fix sealing on new plots and cracked sealant around new window and door frames.
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.
Whatever the size of the job, it’s backed by our one-year guarantee.
- Where
- St Mary's (KW17)
- Region
- Orkney Islands
- Cover
- A year, on every job
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Looking after it afterwards
Once the sealant has cured, a few habits help it last:
- Keep water off fresh sealant until it has cured
- Watch for new gaps as the house dries out
- Avoid scourers and strong chemicals on sealant
- Get a leaking seal dealt with right away
Photograph failed sealant before it’s redone and keep the builder’s replies. It’s useful if you need to raise other issues later.
A failed seal in a new home lets water into joists, plasterboard and ceilings. Early resealing keeps the job small and protects the rest of the house.
Landlords, agents and businesses in St Mary's
Failed sealant is one of the commonest items on a check-out report. Several properties can be quoted together.
If you manage several properties in or around St Mary's, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs.
What sealant work can’t fix
It helps to know what we can’t do:
- Cracked trays, tiles or worktops
- A tray or bath that is not properly supported, until it’s fixed
- Structural cracks in walls or ceilings
If in doubt, send an email to info@mrmastic.co.uk and we will say what we think.
What we seal
- Show homes
- Windows & doors
- Kitchens
- Plot handovers
- Bathrooms & en suites
- Skirting & floors
What the job involves on each surface
Kitchens
Worktop, upstand and sink joints in new kitchens often get a hurried bead. We remove it and reseal with a kitchen-suitable sealant.
Show homes
We seal show-home bathrooms, kitchens and frames to a tidy standard. We’ll plan around viewing times.
Towns and villages near St Mary's
More services for St Mary's
When to call us in St Mary's
Baths and trays settle under load once the home is lived in. If a bath wasn’t filled when it was sealed, the bead is stretched the first time it’s used.
Any of these means the joints need attention:
- Messy sealant that spoils new finishes
- Skirting joints opening in the first winter
- Worktop and upstand sealant coming away
- Sealant applied over dusty or wet surfaces
For jobs in and around St Mary's, choosing the right material for each joint is as important as a tidy finish.
What to look for in a quote
- Whether VAT is included
- How long the guarantee is
- What insurance they hold
- Who does the work, and how experienced they are
New homes and floors in St Mary's
St Mary's is within about 1 mile of the coast. New homes near the sea put their outside mastic to work from day one, so it’s worth checking at snagging. Timber frame is common in newer Scottish homes, so skirting and sealant joints can open up as the building settles.
In and around St Mary's, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
St Mary's is about 6 miles south of Kirkwall, in the Orkney Islands. Our applicators cover new build mastic for homeowners, landlords and businesses in St Mary's and the surrounding area, as part of our work across the Orkney Islands. St Mary's is one of 51 towns and villages in the Orkney Islands where we work.
Jobs for new build mastic in KW17 works the same way as everywhere else we cover. Local streets include Station Square, St Mary's Road and Storehouse Place, all of which we cover. If you’re just outside St Mary's, we cover Upper Sanday (3 miles east), Burray Village (4 miles south), Toab (4 miles north-east), Grimness (5 miles south) and St Margaret's Hope (5 miles south). Being one of the Orkney Islands’s larger places, St Mary's has homes, rented property and businesses of every kind. Island and remote addresses take a little more planning, so tell us where you are when you ask for a quote.
What’s near St Mary's
A little further out are Balfour Hospital (5.8 miles north) and Graemeshall Museum (0.5 miles north-east). The countryside around St Mary's includes Gaitnip Hill and Loch of Ayre.
What affects the cost of new build mastic
Jobs vary more than people expect. What affects the quote:
- The type of sealant required
- Mould in or behind the old joints
- How much old sealant there is and how hard it is to remove
- Working hours on commercial sites
Leaving a failed joint usually makes the job bigger, not smaller, because water and mould keep working on it. If you are unsure, drop us a line at info@mrmastic.co.uk for an honest opinion and a quote.
What to tell us for a quote
To help us quote quickly, let us know:
- The type of property
- A few photos by email, if you can
- Whether it has been sealed before
- What the problem is, such as mould, gaps, leaks or cracking
Call for a quick quote, or email us if that is easier. Describe what needs sealing and we’ll explain what’s involved before giving you a price.
What happens on the day
We keep the work tidy and contained to the joints we are treating. The job normally takes anything from a few hours to several days, depending on the number of plots, and we explain the cure time before we leave. Outside jobs in St Mary's need a dry day, because sealant will not bond to a wet joint, so external jobs may need to move if the day turns wet. Indoor work goes ahead whatever the weather.
- First, the list of joints is agreed from your snagging sheet or plot schedule.
- Every bit of the old builder’s sealant is cut out.
- 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.
Before we arrive
- Clear the area around the work
- Tell us about any water getting in
- Mention any parking rules near the property
Get a quote
Need a quote? 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 quote before work begins.