Highland · Scotland
New-build mastic & snagging in Keiss, Highland
Problem with your new-build sealant joints in Keiss? We remove the old material, prepare the joints and seal them properly, with a one-year guarantee.
- Plot mastic for developers ahead of handover
- Gaps opening as the house dries out and settles
- Beads laid onto grit and dust from the build
New build mastic in Keiss
We carry out plot mastic and second-fix sealing for builders, and snagging reseals for new-home owners. In both, preparation makes the difference. We work on windows & doors, kitchens and skirting & floors, and the jobs we see most are gaps behind new kitchen upstands and cracked caulk along new skirting.
Around smaller Scottish places like Keiss, new homes tend to be single plots or small developments. They need their sealant and floor joints finished just as carefully as on a big site.
A 12-month guarantee comes with the work, just as it does everywhere we cover.
- Where
- Keiss (KW1)
- Region
- Highland
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026

Surface by surface
Show homes
Tired or marked sealant in a show home can be renewed. The old bead comes out and a clean new one goes in.
Windows and doors
The gap between a new frame and its plaster reveal often opens up. We cut out the cracked bead and reseal with a flexible sealant.
Landlord and commercial work in Keiss
Landlords and letting agents in Keiss can book us as well as householders. Sealant work between tenants is a simple way to keep a property in good order.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance that we can handle for you.
New build mastic around Keiss
Keiss is close to the coast. New homes near the sea put their outside mastic to work from day one, so it’s worth checking at snagging. Many new homes in Scotland are timber-framed, and as the frame dries and settles, skirting and sealant joints can open up.
For jobs in and around Keiss, choosing the right material for each joint is as important as a tidy finish.
Keiss is about 15 miles east of Thurso, in Highland. Homes, rented property, offices and hotels in Keiss is covered for new build mastic. Every job comes with our one-year guarantee. 253 places in Highland are on our list.
We work across KW1 for new build mastic. Whether your property is on High Street, South Street and Robertson Crescent or anywhere close by, we can help. We also cover the places around Keiss: Reiss (4 miles south), Ackergillshore (4 miles south), Hastigrow (5 miles west), Staxigoe (6 miles south-east) and Haster (6 miles south). Island and remote addresses take a little more planning, so please mention your location when you drop us a line at info@mrmastic.co.uk.
Local landmarks in Keiss
Other landmarks nearby include Caithness Broch Centre (2 miles north-east) and Keiss Castle (0.7 miles north-east). The countryside around Keiss includes Loch of Wester.
Common problems we fix in Keiss
If plaster or screed was still damp when it was sealed, the bond suffers. Site programmes don’t always leave time for joints to dry before the sealant goes on.
Signs it’s time to call us include:
- Gaps between new skirting and floors
- Leaking shower tray seals in a new home
- Plot mastic for developers ahead of handover
- Frame joints opening as the plaster dries
In and around Keiss, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Comparing quotes
- How the surfaces are prepared before sealing
- How hidden problems are handled
- What the quote includes, VAT included or not
- The length of the guarantee
Keiss: your questions answered
Do you cover Keiss for new build mastic?
Yes, Keiss is within the area we cover. We work across all of Scotland. Just email us at info@mrmastic.co.uk with a few details of the job.
Will you come out to Keiss?
Yes, smaller places are covered as well as towns. We work across all of Scotland. Let us know about access, parking and anything unusual about getting there when you book.
Will there be a smell?
That depends on the sealant. Some products have a noticeable smell, others very little.
What do you put in the joint?
Each joint gets the product that suits it. Movement, water and weather all affect the choice.
My new home is still under warranty. Should I contact you?
Your builder, if you’re still in their snagging or warranty period. If that does not work out, we are happy to quote with our one-year guarantee.
Is there a guarantee?
Yes, always. Each job is guaranteed for twelve months, large or small.
Why has my new-build shower seal failed already?
A new house dries and settles for a year or two, and sealant is often applied quickly onto dusty surfaces. Either can make it fail early.
Is it worth trying it myself?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
Keeping the joints in good condition
Simple care keeps the joints in good condition. We recommend:
- Clean sealant with mild detergent, not abrasives
- Keep water off fresh sealant until it has cured
- Avoid running a DIY bead over the old one
- Act quickly if a seal starts to leak
Leave the sealant for the cure time we give you before showering or bathing. Silicone is normally left for about a day.
The sooner you deal with untidy or cracking sealant, the less there is to put right. Small faults turn into leaks if left.
Why act early in Keiss
Water getting past a failed seal in a new build reaches walls and floors that are still settling. Resealing promptly protects the new finishes around it. In a place like Keiss, small leaks are easy to put off, but water through a failed joint keeps working away until it’s fixed.
Instead of a standard rate, 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.
Why us?
- An ARBOMaster approved applicator
- 20+ years of sealant experience
- Any old sealant cut out fully, not covered over
- One-year guarantee on every job
See our cost guide or our reviews.
What happens on the day
Every visit runs the same way: we look at the joints together, protect the area around them, do the work and clear up. It normally takes anything from a few hours to several days, depending on the number of plots. In smaller Scottish places, parking is normally less of an issue than access and distance. Let us know how to find you and how to reach the joints, and the visit is planned around that.
- 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, with no layer left behind.
- We clean out the dust and grit left from the build.
- Primer goes on where the surface and product need it, then the new sealant.
- We tool every joint neatly and tell you when each area can be used.
How to prepare
- Clear items away from the joints we’re working on
- Keep children and pets away from the work area
- Where the joints are inside, avoid wetting them before we arrive
How to get a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we’ll talk you through what we’d do. When it suits you, email us at info@mrmastic.co.uk.
Advice
What affects the quote in Keiss
There’s no set price list, because no two jobs are the same. The quote depends on:
- Any working-time requirements on site
- How easy the joints are to reach
- The number and length of the joints
- Whether old sealant or filler has to be cut out
We don’t show prices on the website, because the cost depends so much on the job itself. For a quick quote, please send an email to info@mrmastic.co.uk and we will talk you through it.
What we need to know
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- The address or postcode of the job
- A few pictures by email, if you can
- If someone has resealed it before
- How many joints, rooms or windows are involved
Asking for a quote is easy: let us know what needs doing and where and its rough size. Photos by email help us understand the job.
