Na h-Eileanan Siar · Scotland

New-build mastic & snagging in Clachan Shannda, Na h-Eileanan Siar

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

  • Plot mastic for developers ahead of handover
  • Leaking shower tray seals in a new home
  • Skirting joints opening in the first winter

New build mastic in Clachan Shannda

Why it’s worth doing now in Clachan Shannda

Resealing everything on a snagging list in one visit is generally simpler than chasing joints one at a time. You get one visit and one clear quote for the lot. Exposed walls in smaller Scottish places take a lot of wind and rain, and damp in stone or harled walls takes a long time to dry once water gets behind a joint.

There are no prices on our website, because each job is priced on what it involves. Call for a quick quote.

What you get with us

  • 12-month guarantee on every job
  • A sealant colour to suit the surroundings
  • We leave the area clean and tidy
  • Domestic, commercial and hotel work

Read our cost guide or our reviews.

New build mastic in Clachan Shannda, done properly

A new build should have a neat, sound bead at every joint. Smeared, patchy or cracked sealant is worth sorting early, before water gets into the floor or walls. If you’re dealing with internal frame sealant that has split and messy sealant that spoils new finishes, we can help, whatever the surface.

Many newer homes in Scotland are timber-framed and settle as they dry out, which shows as gaps at skirtings and floor joints. Older stone-built homes, meanwhile, often have timber floors that move with the seasons.

A one-year guarantee comes as standard.

Where
Clachan Shannda (HS6)
Wider area
Na h-Eileanan Siar
Guarantee
One year on every job
Price
Quoted before any work starts
Email
info@mrmastic.co.uk
Page updated
26 October 2026
Mr Mastic applicator sealing the vertical joint between a glass shower screen and tiled wall

Surface by surface

Windows and doors

A draught at a new window can be a missed or failed joint. We look at the joints and reseal where needed.

Bathrooms and en suites

Shower trays in new homes often move slightly in the first year. We reseal once the old bead is fully out with baths filled first.

Looking after it afterwards

Once the sealant has cured, a few habits help it last:

  • Raise failed sealant with the developer while you are covered
  • Wait for the cure time before using a resealed shower
  • Open a window or run the fan after bathing
  • Check bath and shower seals every few months as the house settles

Clean the sealant with a mild detergent and a soft cloth. Avoid abrasive pads and strong solvents.

Lifting sealant traps moisture and mould behind it. Dealing with it before it goes black saves a harder job later.

FAQs for Clachan Shannda

Is there a guarantee on new build mastic in Clachan Shannda?

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

Can you do new build mastic in Clachan Shannda?

Yes. We work across all of Scotland, and Clachan Shannda is part of that. Just drop us a line at info@mrmastic.co.uk with a few details of the job, and we will give you a clear quote.

Do you take out the old sealant first?

Always. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.

Does someone need to be in?

For indoor joints, yes, someone needs to let us in. Once we’ve agreed the job, you do not need to watch us work.

Can I do it myself?

You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.

What do you put in the joint?

Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we will tell you what we’re using.

Can you reseal over the builder’s sealant?

No. We always remove the existing bead, then clean and prime the joint, and a new bead applied.

Are you ARBOMaster approved?

Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.

The process

Every visit runs the same way: we look at the joints together, mask and protect the surrounding surfaces, carry out the job and clear up. Most jobs take a few hours for most snagging lists, longer for a run of plots. For a place like Clachan Shannda, longer drives are planned in advance. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.

  1. We look at why each joint failed, including any movement.
  2. We remove the failed sealant and clean the joints.
  3. We make sure the joints are dry and prime them if needed.
  4. New sealant goes in, with baths filled first so they’re at their heaviest.
  5. The finished joints are checked and the cure times given.

Preparing for the visit

  • Keep children and pets away from the work area
  • Try not to wet indoor joints just before the visit
  • Mention any parking rules near the property

Ask for a quote

For new build mastic in Clachan Shannda, drop us a line at info@mrmastic.co.uk. Tell us what the problem is and where, and we will agree the price before any work begins.

Ask for a quote

Read more

Should I try it myself first?

If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly.

Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.

What sealant work cannot fix

Sealant isn’t the answer to every problem, and we’ll tell you before work begins. It won’t solve:

  • Disputes or warranty claims with your builder
  • Leaking fittings rather than failed sealant
  • Broken tiles or a split tray

Not sure which it is? You can send an email to info@mrmastic.co.uk and we’ll tell you honestly.

Surfaces we seal

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

What new build mastic looks like in Clachan Shannda

Clachan Shannda 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. Work on the islands has to be planned around ferry crossings and the weather, so the more notice, the better.

In and around Clachan Shannda, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint. Whether the job is in Clachan Shannda itself or nearby, the right material for each joint matters as much as a neat finish.

Clachan Shannda (Gaelic: Clachan Sands) is in Na h-Eileanan Siar. Across the HS6 area, we cover new build mastic for homes and businesses. Our Na h-Eileanan Siar coverage runs to 87 places, Clachan Shannda among them.

All of HS6 is within our area for new build mastic, from the main roads to the quietest streets. You will find Clachan Shannda on the B893, which makes it straightforward to reach with everything needed for new build mastic. Neighbouring places we cover for new build mastic include Ruisgarry (4 miles north-east), Lochmaddy (5 miles south-east), Locheport (8 miles south), Claddach Kyles (9 miles south-west) and Claddach Kirkibost (9 miles south-west). Island and remote addresses take a little more planning, so tell us where you are when you ask for a quote.

What’s near Clachan Shannda

Open spaces near Clachan Shannda include Loch nan Gobhar and Borve Hill.

Map of Clachan Shannda © OpenStreetMap contributors

Quotes for new build mastic in Clachan Shannda

You’ll get a clear quote before work begins. It takes into account:

  • The type of sealant required
  • The size of the job
  • Working hours on commercial sites
  • Mould in or behind the old joints

Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, plus any working-time requirements on site. Ask us for a quote and we will go through it with you.

Helping us quote

Photos help, but a description is a good start. Try to tell us:

  • A few pictures by email, if you can
  • Any previous sealing or DIY work
  • Where the property is
  • What’s wrong with the joints now

Call for a quick quote, or email us if that is easier. Describe what needs sealing and we will explain what’s involved and give you a clear quote.

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