Highland · Scotland

New-build mastic & snagging in Altnaharra, Highland

New build mastic in Altnaharra from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.

  • Untidy sealant flagged on a snagging list
  • Gaps behind new kitchen upstands
  • Gaps between new skirting and floors

Trusted new build mastic in Altnaharra

Landlord and commercial work in Altnaharra

We also work for property managers and facilities teams in Altnaharra and across Highland. We can quote a run of properties together, and we are fully insured for the work.

If you manage several properties in or around Altnaharra, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs.

New build mastic in Altnaharra, done properly

A new house keeps drying out and settling for its first couple of years. Timber shrinks, plaster dries and baths and trays bed down, so sealant that was laid quickly before handover often cracks. We work on bathrooms & en suites, show homes and plot handovers, and people most often call us about sealant that never bonded to the surface and plot mastic for developers ahead of handover.

Around smaller Scottish places like Altnaharra, 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 12-month guarantee comes as standard.

Location
Altnaharra (IV27)
Wider area
Highland
Cover
12 months on all our work
Quote
A clear quote up front
Email
info@mrmastic.co.uk
Page updated
26 October 2026
Sealant gun close-up on a shower enclosure wall joint

Common problems we fix in Altnaharra

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.

Any of these means the joints need attention:

  • Worktop and upstand sealant coming away
  • Messy sealant that spoils new finishes
  • Shower seals failing in the first year or two
  • Second-fix sealing on new plots

In and around Altnaharra, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.

Questions to ask before booking

  • What preparation is included
  • How hidden problems are handled
  • What guarantee comes with the work
  • Whether VAT is included

10 questions to ask before you book

Why act early in Altnaharra

DIY kits don’t solve the main problems with new-build sealant: dust, no primer and old sealant left in the joint. Proper removal and preparation are what make it last. When the nearest tradesperson is a drive away, it’s tempting to leave a small leak, but water behind a failed seal does the most damage when nobody’s watching.

No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all play a part.

Why choose Mr Mastic in Altnaharra

  • Domestic, commercial and hotel work
  • 20+ years of sealant experience
  • Rated 4.9 stars on Google
  • Any old sealant cut out fully, not covered over

Take a look at our cost guide and our reviews.

What we cannot put right

New sealant cannot fix everything, and we will tell you before work begins. It will not solve:

  • Baths and trays that move too much for sealant to cope with
  • Plumbing faults behind the sealant
  • Deciding who is responsible under a builder’s warranty

If you’re not sure, just drop us a line at info@mrmastic.co.uk and we’ll give you a straight answer before booking.

What we seal

  • Bathrooms & en suites
  • Skirting & floors
  • Windows & doors
  • Plot handovers
  • Kitchens
  • Show homes

New build mastic around Altnaharra

Timber frame is common in newer Scottish homes, so skirting and sealant joints can open up as the building settles. The west of Scotland is wetter than the east, which means plot mastic and the sealant in new homes has to cope with a lot of rain.

For jobs in and around Altnaharra, choosing the right material for each joint is as important as a tidy finish.

Altnaharra is about 39 miles south-west of Thurso, in Highland. For new build mastic in and around Altnaharra, it’s easy to get a quote: please drop us a line at info@mrmastic.co.uk. We are based in Crawley and cover Highland, Altnaharra included. We cover 253 towns and villages across Highland, from the larger towns to small villages.

Work in IV27 works the same way as everywhere else we cover. Close by, we work in Tongue (13 miles north), Melness (17 miles north), An Luirg (18 miles south), Am Blàran Odhar (19 miles north-east) and Innis nan Lìon (21 miles south). For island and remote addresses, a little more planning is needed, so mention it when you ask for a quote.

Around Altnaharra

For a walk, there’s Loch Eileanach and Meall an Fhuarain.

Map of Altnaharra © OpenStreetMap contributors

Surface 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

Sink joints are wet all the time. We use a sealant suited to kitchens suited to the job.

Can I do it myself?

A DIY attempt does not rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.

The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.

Altnaharra questions

Is Altnaharra within the area you cover?

Yes, Altnaharra is covered. Our work covers the whole of Scotland, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.

Do you cover Altnaharra for new build mastic?

Yes. We work across all of Scotland, and Altnaharra is part of that. You can send an email to info@mrmastic.co.uk and tell us what needs doing, and we’ll give you a clear quote.

Do you guarantee your work?

Yes. Every job comes with a 12-month guarantee.

What do you put in the joint?

The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.

Why has my new-build shower seal failed already?

Lots of new homes see sealant crack early, because the house is drying and settling. Rushed application on dusty surfaces makes it worse.

Is there any odour?

Possibly a little. It fades as the sealant cures.

Can I send you my snagging list?

Yes. Send the list and a few pictures of the sealant items, and we’ll quote. We’ll tell you if anything on it isn’t a sealant job.

Are you fully insured?

Yes. Mr Mastic is fully insured, with over 20 years’ experience in sealant work.

The process

There’s no need to move everything out before we come, just the space around the work. Everything nearby is protected, and the job takes anything from a few hours to several days, depending on the number of plots for a typical job. Around Altnaharra, distance and access matter more than parking. Tell us how to find the property and how to reach the work, and the visit is planned around that.

  1. We start by going through the snagging items or plot schedule with you.
  2. The failed sealant is removed completely, with no layer left behind.
  3. Joints are vacuumed and cleaned of building dust.
  4. Primer goes on where the surface and product need it, then the new sealant.
  5. Each bead is tooled and the cure times explained.

Preparing for the visit

  • Keep children and pets away from the work area
  • For indoor joints, keep the area dry beforehand if you can
  • For business premises, tell us about site rules or sign-in

Get a quote

We don’t publish a price list, because every job is different. Instead, we send you a clear quote for your job. To arrange one, drop us a line at info@mrmastic.co.uk.

Get a price

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20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job