Na h-Eileanan Siar · Scotland
New Build Mastic in Cross
Plot mastic for developers and snagging failed sealant in new homes for homes and businesses in Cross and across Na h-Eileanan Siar. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Shower seals failing in the first year or two
- Gaps between new skirting and floors
- Plot mastic for developers ahead of handover
New build mastic for homes and businesses in Cross
We carry out plot mastic and second-fix sealing for builders, and snagging reseals for new-home owners. Both get the same care over preparation. We are often asked to deal with shower seals failing in the first year or two and gaps behind new kitchen upstands, on skirting & floors, kitchens and plot handovers.
Around smaller Scottish places like Cross, new homes tend to be single plots or small developments. Each needs its sealant and floor joints finished as carefully as on a big site.
A one-year guarantee comes as standard.
- Where
- Cross (HS2)
- Region
- Na h-Eileanan Siar
- Guarantee
- One year on every job
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
How it works
When we arrive, we start by going over the job with you, so there are no surprises. Surfaces next to the work are protected before any work starts. Most jobs take a few hours for most snagging lists, longer for a run of plots. For a place like Cross, longer drives are planned in advance. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- 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.
- 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
- Let us know about earlier repairs to the joints
- Where the joints are inside, avoid wetting them before we arrive
- Keep children and pets away from the work area
How to get a quote
For a quick quote, get us on the phone, 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.
Related advice
What affects the cost of new build mastic
There’s no set price list. What we look at:
- Mould in or behind the old joints
- Any working-time requirements on site
- How much old sealant there is and how hard it is to remove
- How many areas need sealing
Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. You’ll know the price before we begin.
Asking for a quote
What to tell us when you ask for a quote:
- A few pictures by email, if you can
- Where the property is
- The rough size of the job
- Whether it has been sealed before
Need a quote? Please drop us a line at info@mrmastic.co.uk with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.
Also near Cross
What else we do in Cross
When something else is needed
We will not take on work that won’t last, so here’s what sealant can’t put right:
- A tray or bath that is not properly supported, until it’s fixed
- Structural cracks in walls or ceilings
- Disputes or warranty claims with your builder
Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we’ll tell you honestly.
Where we work in Cross
- Show homes
- Plot handovers
- Bathrooms & en suites
- Windows & doors
- Kitchens
- Skirting & floors
Aftercare tips
Good habits help new joints last longer. Our tips:
- Use the extractor fan every time you shower
- Follow the cure time we give you
- Raise failed sealant with the developer while you are covered
- Resist patching a failed seal with a tube from the DIY shop
Avoid standing on the rim of the bath or the edge of the tray. If a bath or tray moves when you stand in it, get it looked at.
A seal that splits early is often a sign of movement. Have it resealed, and the tray or bath checked, before it gets worse.
What the job involves on each surface
Kitchens
Worktops in new homes can move slightly as the house dries, opening gaps behind the upstand. We reseal them with a flexible sealant.
Plot handovers
We work through plots to your schedule, sealing each room ready for handover. Joints are prepared properly before sealing.
Do you need new build mastic in Cross?
Not every new-build joint gets the right sealant: decorators’ caulk in a wet area, or a stiff sealant where there’s movement. Both fail early.
Any of these means the joints need attention:
- Worktop and upstand sealant coming away
- Plot mastic for developers ahead of handover
- Messy sealant that spoils new finishes
- Internal frame sealant that has split
Around Cross, as everywhere, new build mastic is only as good as the preparation behind it.
What your quote should include
- When the joint can take water or movement
- What insurance they hold
- How long the guarantee is
- What happens if they find a problem under the old sealant
New homes and floors in Cross
Cross 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. Island jobs need planning around ferries and the weather, so the more notice, the better.
For jobs in and around Cross, choosing the right material for each joint is as important as a tidy finish.
Cross (Gaelic: Cros) is in Na h-Eileanan Siar. Anywhere in HS2, our applicators can take on new build mastic. Cross is one of 87 places in Na h-Eileanan Siar where we work for new build mastic.
Work in HS2 works the same way as everywhere else we cover. You will find streets such as Rathad Chros-Sgiogarstaigh, Back Street and New Street, and we cover them all. If you’re just outside Cross, we cover North Dell (1 mile west), Nis (1 mile east), Ness (1 mile east), Lionel (2 miles north-east) and Lìonal (2 miles north-east). Island and remote addresses take a little more planning, so tell us where you are when you ask for a quote.
Landmarks near Cross
Other landmarks nearby include Dell Mill (under half a mile west). For a walk, there’s Loch Langavat.
Your questions about new build mastic in Cross
Do you cover smaller places like Cross?
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.
What guarantee comes with new build mastic in Cross?
All our work, in Cross and everywhere else, comes with a 12-month guarantee. We are fully insured, and an ARBOMaster approved applicator.
Can you quote for more than one area?
Of course. Combining jobs makes good use of the visit.
Should I wait before resealing?
Any seal that is leaking should be redone right away. For small cosmetic gaps, waiting until the house has settled can save doing them twice.
Will there be a smell?
That depends on the sealant. Some smell for a while, some hardly at all, and any smell fades as they cure.
Who should fix failed sealant in a new build?
Start with your builder while their snagging or warranty period runs. After that, or if their repair keeps failing, we can do it with our 12-month guarantee.
How long will you be here?
A typical job takes a few hours in a single home. Your quote will say how long we expect yours to take.
Do you remove the old sealant?
Yes, always, and completely. New sealant won’t bond properly to old, so the joint is cleaned back first.
Landlord and commercial work in Cross
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.
If you manage several properties in or around Cross, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs.