Shetland Islands · Scotland
New Build Mastic in Firth
Problem with your new-build sealant joints in Firth? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Kitchen sealant that has pulled off the wall
- Beads laid onto grit and dust from the build
- New-build shower sealant that has already split
Looking after it afterwards
A little care helps the new joints last. We recommend:
- Act quickly if a seal starts to leak
- Raise failed sealant with the developer while you are covered
- Check bath and shower seals every few months as the house settles
- Keep water off fresh sealant until it has cured
Keep an eye on the joints over the first couple of years. Hairline gaps can open as timber and plaster dry.
A seal that splits early is often a sign of movement. Have it resealed, and the tray or bath checked, before it gets worse.
How we handle new build mastic in Firth
A new house keeps drying out and settling for its first couple of years. Timber dries and shrinks, and baths and trays settle, so sealant that was laid quickly before handover often cracks. We work on skirting & floors, windows & doors and plot handovers, and the jobs we see most are beads laid onto grit and dust from the build and frame joints opening as the plaster dries.
Timber frame is common in newer Scottish homes, and it settles over the first years, so skirting and floor joints can open up. In older homes, timber floors move through the year too.
The work is covered for a year after we finish. If there’s a problem with it, please drop us a line at info@mrmastic.co.uk.
- Location
- Firth (ZE2)
- Wider area
- Shetland Islands
- Cover
- A year, on every job
- Price
- A clear price before work begins
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Other services in Firth
How the job changes by surface
Bathrooms and en suites
En suite seals are easy to miss on a snagging list until they leak. A proper reseal keeps water in the tray.
Kitchens
Beside the sink, the joint takes water every day. We use a sealant suited to kitchens, food-safe where it’s needed.
Honest limits
Some problems need a builder, plumber or other trade rather than us:
- Movement caused by a poorly fitted tray or bath
- Disputes or warranty claims with your builder
- Broken tiles or a split tray
If you’re not sure, just drop us a line at info@mrmastic.co.uk and we’ll give you a straight answer.
Surfaces we seal
- Show homes
- Kitchens
- Windows & doors
- Bathrooms & en suites
- Skirting & floors
- Plot handovers
Common problems we fix in Firth
Not every new-build joint gets the right sealant: caulk where water collects, or a rigid product on a moving joint. Neither lasts long.
Common reasons people contact us are:
- Plot mastic for developers ahead of handover
- Sealant applied over dusty or wet surfaces
- Internal frame sealant that has split
- Cracks appearing as a new home settles
For jobs in and around Firth, choosing the right material for each joint is as important as a tidy finish.
Before booking anyone
- Is VAT in the price?
- What insurance they hold
- How much experience the applicator has
- Whether you can choose the colour
What new build mastic looks like in Firth
Firth is close to the coast. Plot mastic on new homes near the coast takes more weather than it would inland, so it’s worth checking at snagging. Many new homes in Scotland are timber-framed, so skirting and sealant joints can open up as the building settles.
In and around Firth, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Firth is in the Shetland Islands. We carry out new build mastic for householders, landlords and businesses in Firth and the surrounding area. Our the Shetland Islands coverage runs to 63 places, and Firth is one of them.
Here we cover the ZE2 postcode area for new build mastic. New build mastic is available to properties on Midlea, Leaside and Sandside. Nearby, we also carry out new build mastic in Mossbank (1 mile north-east), Scatsta (4 miles west), Vidlin (6 miles south), Sullom (6 miles west) and Burravoe (6 miles north-east). Island and remote addresses take a little more planning, so tell us where you are when you ask for a quote.
Local landmarks in Firth
For a walk, there’s Loch of Bordigarth.
For landlords and businesses
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
Firth questions
Do you cover smaller places like Firth?
Yes, Firth is covered. Our work covers the whole of Scotland, islands included, from towns to the smallest places. Longer journeys are simply planned in advance.
Is new build mastic in Firth guaranteed?
Every job comes with our one-year guarantee, wherever it is. We’re also fully insured and ARBOMaster approved.
Do you remove the old sealant?
Always. Sealing over old sealant is the main reason resealing fails early, so we never do it.
Where do you work from?
We’re based in Crawley, and we work across South East England, London and Scotland.
Do you hold any approvals?
Yes. We are approved under the ARBOMaster scheme.
Which products do you use?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We explain the product when we quote.
When is the sealant fully cured?
Different products cure at different speeds, so please follow the time we give you when we finish.
How long does new build mastic take?
Most jobs take a few hours in a single home, including preparation and clearing up. Your quote will say how long we expect yours to take.
What we do, step by step
We bring everything the job needs with us, so there’s nothing for you to buy. Once we’ve agreed what’s being done, the area is protected and the work begins. Most jobs take a few hours in a single home. Outdoor work around Firth depends on the weather, as sealant needs a dry surface, so an outdoor job can move if the forecast changes. Indoor work goes ahead whatever the weather.
- First, the list of joints is agreed from your snagging sheet or plot schedule.
- The failed sealant is removed completely.
- Joints are vacuumed and cleaned of building dust.
- We prime where needed and apply a sealant suited to each joint.
- Each bead is tooled and the cure times explained.
Getting ready for the visit
- Let us know about parking restrictions
- Try not to wet indoor joints just before the visit
- Mention any tricky access
How to get a quote
We quote each job on its own, so start by telling us what you need. Just drop us a line at info@mrmastic.co.uk with the details, and pictures are welcome.
Advice
What affects the quote in Firth
Some jobs are bigger than they look, and some smaller. The main factors:
- How much there is to do
- The product the joint needs
- Mould in or behind the old joints
- The number of rooms or windows
Instead of a standard rate, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Helping us quote
To help us quote quickly, let us know:
- Where the job is, and your postcode
- Any previous sealing or DIY work
- Pictures of the joints, sent by email
- The rough size of the job
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and add photos by email if you can.