Na h-Eileanan Siar · Scotland

New Build Mastic in Geirinis

Plot mastic for developers and snagging failed sealant in new homes for householders, landlords and businesses in Geirinis. Fully insured, ARBOMaster approved and guaranteed for a year.

  • Leaking shower tray seals in a new home
  • Internal frame sealant that has split
  • Gaps opening as the house dries out and settles

Book new build mastic in Geirinis

How to look after the new joints

Joint life depends on how it’s used and looked after. Here’s what we suggest:

  • Don’t seal over failed sealant yourself
  • Keep pictures and emails about snagging items
  • Don’t wait for the house to settle if water is getting through
  • Avoid scourers and strong chemicals on sealant

Ventilation matters in a new home, which is still drying out. Use the extractor fan or open a window after showers.

Mould takes hold quickly in sealant that has gaps or lifted edges. Dealing with it before it goes black keeps the job straightforward.

New build mastic for homes and businesses in Geirinis

If your new home has a leaking shower seal, open skirting joints or untidy sealant, we can help. While the builder’s snagging or warranty period runs, report it to them first. We work on show homes, windows & doors and bathrooms & en suites, and people most often call us about plot mastic for developers ahead of handover and new-build shower sealant that has already split.

Many newer homes in Scotland are timber-framed and settle as they dry out, which shows as gaps at skirtings and floor joints. In older homes, timber floors move through the year too.

Your job is guaranteed for a year, as with all our work.

Location
Geirinis (HS8)
Wider area
Na h-Eileanan Siar
Cover
12 months on all our work
Price
A clear quote up front
Email
info@mrmastic.co.uk
Updated
26 October 2026
Sealant gun close-up on a shower enclosure wall joint

How it works

When we arrive, we start by going over the job with you, so you know exactly what we’re doing. We protect the surfaces around the joints before any work begins. The work normally takes a few hours for most snagging lists, longer for a run of plots. Around Geirinis, distance and access matter more than parking. Tell us how to find the property and how to reach the work.

  1. First we work through your snagging list or plot schedule with you.
  2. The old bead comes out in full, with no layer left behind.
  3. Each joint is cleaned of dust and grit, then primed if required.
  4. A sealant chosen for each area goes in and is tooled smooth.
  5. We check every joint and tell you how long each needs to cure.

Getting ready for the visit

  • Try not to wet indoor joints just before the visit
  • Tell us about any water getting in
  • Tell us about any previous sealing or DIY attempts

How to get a quote

If you’re in Geirinis and need new build mastic, drop us a line at info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and you will get a clear quote before any work starts.

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How the job changes by surface

Show homes

We can refresh show-home sealant that has discoloured or been knocked. The old bead comes out and a clean new one goes in.

Bathrooms and en suites

En suite seals are easy to miss on a snagging list until they leak. Resealing properly keeps water where it belongs.

New build mastic in Geirinis: local notes

Geirinis 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. 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.

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

Geirinis (Gaelic: Gerinish) is in Na h-Eileanan Siar. From the centre of Geirinis to the outskirts, new build mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Geirinis is one of 87 places in Na h-Eileanan Siar where we work.

Our applicators cover all of HS8 for new build mastic. Whether your property is on Cille Bha'nain and Dun Mor or a nearby road, our applicators can take on the job. Close by, we work in Creag Ghoraidh (4 miles north), Grimsay (5 miles north-east), Balivanich (8 miles north), Baile a' Mhanaich (8 miles north) and Dalabrog (13 miles south). Island and remote addresses take a little more planning, so please mention your location when you email us at info@mrmastic.co.uk.

Local landmarks in Geirinis

For a walk, there’s Loch Bee and Ben Tarbert.

Map of Geirinis © OpenStreetMap contributors

FAQs for Geirinis

Do you cover Geirinis for new build mastic?

Yes. We work across all of Scotland, and Geirinis is part of that. You can send an email to info@mrmastic.co.uk and tell us what needs doing.

What guarantee comes with new build mastic in Geirinis?

Every job comes with our one-year guarantee, wherever it is. We’re also fully insured and ARBOMaster approved.

Are you insured?

Yes, we’re fully insured for every job we do.

Can you do plot mastic on a new development?

Yes. We seal plots to the developer’s programme, room by room. Get in touch with the number of plots and the scope for a clear quote.

I’m a tenant. Can you help?

Of course. Ask your landlord first, and we can send them the quote if that helps.

Will it make a mess?

Tidy work is part of the job. Nearby surfaces are protected.

Should I go to my builder first?

Report it to the builder first while you’re covered. If it isn’t resolved, we can reseal it properly.

Do you work for hotels and businesses?

Yes. Hotels, offices and other businesses use us and we are fully insured.

Common problems we fix in Geirinis

Baths and trays settle under load once the home is lived in. A bath sealed empty drops slightly when filled, straining the joint and can tear.

Any of these means the joints need attention:

  • Untidy sealant flagged on a snagging list
  • Internal frame sealant that has split
  • Leaking shower tray seals in a new home
  • Sealant that never bonded to the surface

Whether the job is in Geirinis itself or nearby, the right material for each joint matters as much as a neat finish.

What to look for in a quote

  • Who does the work, and how experienced they are
  • Which sealant they’ll use, and why
  • How hidden problems are handled
  • Is VAT in the price?

How to choose a mastic man

Honest limits

To be straight with you, there are a few things sealant won’t fix:

  • Movement caused by a poorly fitted tray or bath
  • Leaks from pipes, valves or wastes, which need a plumber
  • Cracking that points to a structural problem

If in doubt, send an email to info@mrmastic.co.uk and we will say what we think.

Where we work in Geirinis

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

Quotes for new build mastic in Geirinis

There’s no set price list. The quote depends on:

  • When we can work, for business premises
  • How many areas need sealing
  • The type of sealant required
  • How much old sealant there is and how hard it is to remove

Leaving a failed joint generally makes the job bigger, not smaller, because water and mould keep working on it. If you’re unsure, email us at info@mrmastic.co.uk and we’ll give you an honest view and a quote.

Helping us quote

A few details help us give you an accurate quote. When you get in contact, it helps to mention:

  • What’s wrong with the joints now
  • Where the property is
  • How many joints, rooms or windows are involved
  • Whether it’s a home or a business

Need a quote? Please drop us a line at info@mrmastic.co.uk with a few details. You will know what we plan to do, and what it will cost, before any work begins.

Landlord and commercial work in Geirinis

Landlords and agents in Geirinis can book us as well as homeowners. Sealant work between tenants keeps a property looking cared for.

We also work for property managers and facilities teams in Geirinis and across Na h-Eileanan Siar. We can quote a run of properties together, and we are fully insured.

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