Orkney Islands · Scotland
Grimeston New Build Mastic
New-build sealant joints in Grimeston need attention? We cut out the old, prepare the joints and apply the right sealant, with a one-year guarantee.
- Gaps behind new kitchen upstands
- Gaps opening as the house dries out and settles
- Shower seals failing in the first year or two
FAQs for Grimeston
Is new build mastic in Grimeston guaranteed?
Every job comes with our one-year guarantee, wherever it is. We are also fully insured and ARBOMaster approved.
Can you do new build mastic in Grimeston?
Yes. Our work covers the whole of Scotland, and Grimeston is part of that. You can drop us a line at info@mrmastic.co.uk and tell us what needs doing.
Do you hold any approvals?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.
Can you match the sealant colour to my new kitchen or bathroom?
Most bathroom joints are white or clear, but sealant comes in other colours too. We match the colour to the finish.
Will you leave 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.
I’m a tenant. Can you help?
Yes, but check with your landlord or agent first. Landlords are often happy for the work to be arranged.
Can new sealant go on top of the old bead?
No. We always remove the existing bead, the joint cleaned and primed where needed, and a new bead applied.
Why has my new-build shower seal failed already?
Cracking in the first couple of years is common. Rushed application on dusty surfaces makes it worse.
How we handle new build mastic in Grimeston
Some owners wait for the first year’s movement before having joints redone. For small cosmetic gaps, that’s reasonable, but a seal that is letting water through needs doing now. We’re often asked to deal with cracks appearing as a new home settles and leaking shower tray seals in a new home, on show homes, windows & doors and bathrooms & en suites.
Work in a place like Grimeston is planned ahead, journey included. Outdoor plot mastic needs dry weather, but indoor floor and skirting joints can be sealed whatever the forecast.
Big or small, you get the same 12-month guarantee.
- Place
- Grimeston (KW17)
- Region
- Orkney Islands
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
What happens if it’s left?
For developers, getting the sealant right first time saves return visits. Every return visit for a failed seal takes time and most come down to preparation. Around Grimeston, water from a failed joint in an older stone home can soak into timber and plaster, which is a far bigger job than the sealant.
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you are unsure, email us at info@mrmastic.co.uk for an honest opinion and a quote.
Why book with us
- Trusted Arbo and Everbuild sealants
- We’re fully insured
- We leave the area clean and tidy
- Experience in homes, commercial sites and hotels
How the visit works
Our applicators work methodically: protect, prepare, seal, tidy. For most jobs that takes a few hours for most snagging lists, longer for a run of plots, and the area is left clean. Somewhere like Grimeston may be a longer drive, and the journey is planned ahead. Mention tracks, gates, ferries or anything else about the route.
- We go through the snagging list or plot schedule and agree the joints to do.
- We cut out every bit of the failed or messy sealant.
- Each joint is cleaned of dust and grit, then primed if required.
- A sealant chosen for each area goes in and is tooled smooth.
- Each area is checked and left with its cure time.
How to prepare
- Let us know about earlier repairs to the joints
- On commercial sites, let us know about site rules
- Where the joints are inside, avoid wetting them before we arrive
How to get a quote
Getting a quote is simple: let us know the job and the location. A few photos by email make the job easier to understand.
Related advice
Keeping the joints in good condition
To keep the joints looking good and working properly:
- Do not wait for the house to settle if water is getting through
- Resist patching a failed seal with a tube from the DIY shop
- Look at the sealant regularly in the first couple of years
- Put sealant faults on your snagging list early
Wipe the sealant with warm soapy water. Avoid abrasive pads and strong solvents.
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.
How we quote for new build mastic
Call for a quick quote. What matters most is:
- Working hours on commercial sites
- Mould in or behind the old joints
- How much old sealant there is and how hard it is to remove
- Which sealant suits the joint
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. You will know the price before we begin.
What we need to know
To help us quote quickly, let us know:
- Photos by email, if that is easy
- What’s wrong with the joints now
- How we’d reach the joints
- Any previous sealing or DIY work
Need a quote? Please send an email to info@mrmastic.co.uk and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.
Also in Grimeston
Work for landlords, hotels and businesses
We also work for property managers and facilities teams. We can quote a run of properties together, and we are fully insured.
Letting agents often deal with us directly. Tell us the address, the job and how access works and we will quote.
What new build mastic looks like in Grimeston
Grimeston is close to the coast. New homes near the sea put their outside mastic to work from day one, 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 Grimeston, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Grimeston is about 9 miles west of Kirkwall, in the Orkney Islands. Whether you are in the middle of Grimeston or further out, we cover new build mastic for every kind of property, from flats and houses to offices and hotels. Our area takes in 51 places across the Orkney Islands.
Our applicators cover all of the KW17 postcode area for new build mastic. Neighbouring places we cover for new build mastic include Bimbister (1 mile north-east), Harray (2 miles north), Stenness (2 miles south), Wasbister (2 miles west) and Russland (2 miles north). Remote and island addresses need a little more planning, so please mention your location when you drop us a line at info@mrmastic.co.uk.
Around Grimeston
Other landmarks nearby include Corrigall Farm Museum (3 miles north). Open spaces near Grimeston include Hill of Heddle and Loch of Harray.
What we are called out for in Grimeston
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 and the sealant may split.
The problems people normally mention when they call include:
- Smeared, uneven beads picked up at snagging
- Gaps opening as the house dries out and settles
- Second-fix sealing on new plots
- Frame joints opening as the plaster dries
For jobs in and around Grimeston, choosing the right material for each joint is as important as a tidy finish.
Before booking anyone
- Whether the sealant suits the joint
- Whether they seal over old material or remove it
- What happens if they find a problem under the old sealant
- Whether VAT is included
How the job changes by surface
Windows and doors
Internal joints between frames and plaster often crack as a new house dries. We cut out the cracked bead and reseal with a flexible sealant in a matching colour.
Bathrooms and en suites
New-build bathrooms and en suites are where sealant fails most often. We cut out the failed bead, clean and prime, and reseal with anti-fungal sanitary silicone.