Shetland Islands · Scotland
New Build Mastic in Scalloway
Specialist new build mastic for Scalloway: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Cracked sealant around new window and door frames
- Cracks appearing as a new home settles
- Smeared, uneven beads picked up at snagging
Looking after it afterwards
Looking after new joints is easy, and it makes a real difference:
- Watch for new gaps as the house dries out
- Act quickly if a seal starts to leak
- Wipe joints with warm soapy water
- Ventilate bathrooms well, especially in the first year
Keep an eye on the joints over the first couple of years. Small gaps can appear as the house dries.
Leave a failed new-build seal and water can reach the floor and the ceiling below. Early resealing keeps the job small and the new finishes intact.
How we handle new build mastic in Scalloway
New homes move as they dry out. Timber dries and shrinks, and baths and trays settle, so sealant that was laid quickly before handover often cracks. Common call-outs are for sealant applied over dusty or wet surfaces and frame joints opening as the plaster dries, on skirting & floors, bathrooms & en suites and show homes.
Work in a place like Scalloway is planned ahead, journey included. Inside work goes ahead in any weather; outside mastic needs a dry day.
A 12-month guarantee comes as standard, so you are covered after we’ve gone.
- Where
- Scalloway (ZE1)
- Wider area
- Shetland Islands
- Guarantee
- A year, on every job
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Updated
- 26 October 2026
How we quote for new build mastic
There’s no set price list. What we look at:
- The product the joint needs
- Working hours on commercial sites
- Whether there’s mould to deal with
- The old material and how stubborn it is
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, along with when we can work on site. Call for a quick quote and we will explain what it covers.
What we need to know
There’s no need for technical detail. It helps if you can tell us:
- How many joints, rooms or windows are involved
- The type of property
- Whether it has been sealed before
- The address or postcode of the job
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we will talk you through the work.
Also near Scalloway
What else we do in Scalloway
Scalloway questions
Is there a guarantee on new build mastic in Scalloway?
All our work, in Scalloway and everywhere else, comes with a 12-month guarantee. We are fully insured, and an ARBOMaster approved applicator.
Do you cover smaller places like Scalloway?
Yes, we do. 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.
Should I try DIY first?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.
Who should fix failed sealant in a new build?
Start with the builder if you are in the snagging or warranty period. If it isn’t resolved, we can reseal it properly.
Do you work for landlords and businesses?
Yes. As well as householders, we work for landlords, agents, businesses and hotels in Scalloway.
Is it normal for sealant to crack in a new home?
There are normally two causes: the house moving as it dries, and sealant that never bonded properly. A proper reseal deals with both.
Will you just run a new bead over the existing one?
No. Sealing over old sealant looks fine for a few weeks, then lifts. We remove every bit of the old bead before resealing.
Do the sealants smell?
There can be a smell while the sealant cures. Opening a window helps.
The process
On the day, there’s very little for you to do. Show us the job and we will take it from there. The work itself takes anything from a few hours to several days, depending on the number of plots from start to finish. Outside jobs in Scalloway need a dry day, because sealant won’t bond to a wet joint, so an outdoor job can move if the forecast changes. Indoor work goes ahead whatever the weather.
- We look at why each joint failed, including any movement.
- Old sealant is cut out and the joints cleaned.
- We make sure the joints are dry and prime them if needed.
- New sealant goes in, with baths filled first so they’re at their heaviest.
- The finished joints are checked and the cure times given.
Preparing for the visit
- Tell us about any previous sealing or DIY attempts
- Let us know about stairs, lifts or work at height
- Tell us about any water getting in
How to get a quote
Want a quote for new build mastic? Please email us at 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.
Related advice
Signs you need new build mastic in Scalloway
On many sites, sealant goes on in the final rush before handover. Dusty, unprimed joints are common, and the sealant sits on grit instead of the surface.
Signs it’s time to call us include:
- Shower seals failing in the first year or two
- Gaps between new skirting and floors
- Smeared, uneven beads picked up at snagging
- Cracks appearing as a new home settles
For jobs in and around Scalloway, choosing the right material for each joint is as important as a tidy finish.
What your quote should include
- When the joint can take water or movement
- What insurance they hold
- Whether VAT is included
- Who turns up on the day
Joints and finishes in Scalloway homes
Scalloway is within about 1 mile of the coast. New homes near the sea put their outside mastic to work from day one, so any gaps are best picked up early. Work on the islands has to be planned around ferry crossings and the weather, so give us as much notice as you can.
In and around Scalloway, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Scalloway is in the Shetland Islands. Whether you’re in the middle of Scalloway or further out, new build mastic is available for homes and businesses alike. Scalloway is one of 63 places in the Shetland Islands we cover for new build mastic.
Postcode districts we cover here for new build mastic: ZE1. If you need new build mastic at a property on Main Street, Craigpark Road and Meadowfield Road or a nearby road, our applicators can take on the job. Scalloway is on the B9074, so it’s easy for us to get to with everything needed for new build mastic. Other places close to Scalloway include Gulberwick (2 miles east), Hamnavoe (3 miles south-west), Veensgarth (3 miles north-east), Sound (4 miles east) and Toogs (4 miles south-west). Scalloway is among the bigger towns we cover in the Shetland Islands. Remote and island addresses need a little more planning, so tell us where you are when you ask for a quote.
Near you in Scalloway
Around Scalloway, our work takes us to homes and buildings near Fisherman's Arms. Nearby you will also find Castle Holm (4.9 miles north) and Gilbert Bain Hospital (4.3 miles east). For a walk, there’s Hill of Berry and Loch of Burwick.
How the job changes by surface
Plot handovers
Good preparation at handover saves snagging later. Dust from the build is removed first.
Skirting and floors
Floors and skirting move as the house dries and the heating runs. We use a flexible product rather than caulk in a colour to suit.
Landlords, agents and businesses in Scalloway
We work for letting agents and landlords as well as homeowners. Sealant work between tenants keeps a property looking cared for before the next move-in.
Failed sealant is one of the commonest items on a check-out report. Several properties can go on one quote.
Why it’s worth doing now in Scalloway
If you’re still in the builder’s snagging or warranty period, ask them to put it right first. If it’s slow, or the same joint keeps failing, a proper reseal from a specialist is the next step. Around Scalloway, 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.
What you pay reflects the work, not guesswork. That’s why we ask a few questions first and agree the price before starting.
What you get with us
- Approved under the ARBOMaster scheme
- Arbo and Everbuild products
- Old sealant always removed completely
- Fully insured
See what affects the cost and our reviews.