Argyll and Bute · Scotland

Rahane New Build Mastic

Plot mastic for developers and snagging failed sealant in new homes in Rahane, with a 12-month guarantee on every job. Ask us for a quote.

  • Leaking shower tray seals in a new home
  • Messy sealant that spoils new finishes
  • Sealant work across a run of new homes

Need new build mastic in Rahane?

Surface by surface

Show homes

Bathrooms, kitchens and frames in show homes are sealed or resealed to a neat finish ready for viewings. We will plan around viewing times.

Skirting and floors

Wet-area floor joints need a flexible seal. They get a flexible, water-resistant sealant.

How we handle new build mastic in Rahane

Across Rahane, we work for both new-home owners and the builders handing those homes over. One shower or a whole phase of plots, the method doesn’t change: cut out, clean, prime where needed and reseal neatly. If you are dealing with cracks appearing as a new home settles and beads laid onto grit and dust from the build, we can help.

Timber frame is common in newer Scottish homes, and it settles over the first years, so skirting and floor joints can open up. In older homes, timber floors move through the year too.

The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we’ll sort it.

Location
Rahane (G84)
Wider area
Argyll and Bute
Guarantee
A year, on every job
Price
Quoted before any work starts
Email
info@mrmastic.co.uk
Updated
26 October 2026
Mr Mastic applicator sealing the vertical joint between a glass shower screen and tiled wall

What we do, step by step

We keep the work tidy and contained to the joints we’re treating. Expect the work to take a few hours for most snagging lists, longer for a run of plots, and we explain the cure time before we leave. Somewhere like Rahane may be a longer drive, and the journey is planned ahead. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.

  1. We start by agreeing which joints are on the list, from the snagging sheet or plot schedule.
  2. Failed or untidy sealant is cut out completely.
  3. Surfaces are cleaned of building dust and primed where needed.
  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

  • Mention any tricky access
  • Mention if the joints have been sealed before
  • Try not to wet indoor joints just before the visit

Getting a quote

We quote each job on its own, so start by telling us what you need. Just drop us a line at info@mrmastic.co.uk with the details, and photos are welcome.

Ask for a quote

Related advice

Landlords, agents and businesses in Rahane

In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.

Letting agents often deal with us directly. Tell us the address, the job and how access works and we will give you a quote.

Signs you need new build mastic in Rahane

The wrong product is sometimes used in the wrong place: decorators’ caulk in a wet area, or a stiff sealant where there’s movement. Both fail early.

Common reasons people contact us are:

  • Smeared, uneven beads picked up at snagging
  • Joints pulling apart as timber shrinks
  • Gaps behind new kitchen upstands
  • Leaking shower tray seals in a new home

If you’ve bought a new home near Garelochhead station, the sealant around baths, showers and frames is worth checking in the first year or two.

Before booking anyone

  • When the joint can take water or movement
  • Whether they seal over old material or remove it
  • How long the guarantee is
  • Whether you can choose the colour

10 questions to ask before you book

New build mastic around Rahane

Rahane is within about 1 mile of the coast. Plot mastic on new homes near the coast takes more weather than it would inland, so it’s worth checking at snagging. Timber frame is common in newer Scottish homes, so skirting and sealant joints can open up as the building settles.

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

Rahane is about 5 miles north-west of Helensburgh, in Argyll and Bute. From the centre of Rahane to the outskirts, new build mastic is available for homes and businesses alike. We cover 118 towns and villages across Argyll and Bute, from the larger towns to small villages. Our Glasgow page covers work nearby, about 25 miles away.

Here we cover the G84 postcode area for new build mastic. You will find streets such as Rosneath Road and Peaton Road, and we cover them all. We also cover Mambeg (1 mile north), Coulport (1 mile west), Ardpeaton (2 miles south-west), Clynder (2 miles south-east) and Garelochhead (3 miles north). Larger places within reach include Helensburgh (5 miles south-east), Dunoon (7 miles south-west), Rhu (3 miles south-east), Sandbank (6 miles south-west) and Innellan (12 miles south-west).

Around Rahane

Rahane’s nearest station is Garelochhead station, roughly 2.3 miles north. Well-known places in the area include Victoria Infirmary (5.5 miles south-east) and Faslane Castle (1.9 miles north-east). For a walk, there’s Clach Bheinn.

Map of Rahane © OpenStreetMap contributors

Why it’s worth doing now in Rahane

It often makes sense to do all the sealant items on a snagging list together. You get one visit and one clear quote. Around Rahane, water from a failed joint in an older stone home can soak into timber and plaster.

No two jobs are quite the same, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we’ll explain the quote if you ask.

What you get with us

  • Colour agreed with you before we start
  • Rated 4.9 stars on Google
  • Fully insured
  • Trusted Arbo and Everbuild sealants

Take a look at what affects the cost or what customers say.

Rahane questions

Can you help a landlord with a rental near Garelochhead station?

Yes, landlords and agents are among the people we work for. Just drop us a line at info@mrmastic.co.uk with the address and what needs doing, and we will give you a clear quote.

Is Rahane in your area for new build mastic?

Yes. We work across all of Scotland, and Rahane is part of that. You can drop us a line at info@mrmastic.co.uk and tell us what needs doing.

Is the work guaranteed?

Yes: twelve months. If anything isn’t right with the work within the year, let us know and we will sort it.

Is it normal for sealant to crack in a new home?

There are generally two causes: movement as the house dries and settles, and sealant laid onto dust without primer. A proper reseal deals with both.

What sealant do you use?

It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.

Can you work on commercial sites?

Yes. Hotels, offices and other businesses use us.

Do you take out the old sealant first?

Yes. We cut out all the old sealant and clean the joint before resealing.

Do I have to be there?

It depends on the job. For work indoors, someone needs to let us in, and for outside work we’ll agree access with you when we book.

DIY sealant or a professional job?

If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.

Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.

Keeping the joints in good condition

Simple care keeps the joints in good condition. Our advice:

  • Follow the cure time we give you
  • Act quickly if a seal starts to leak
  • Wipe joints with warm soapy water
  • Use the extractor fan every time you shower

Ventilation matters in a new home, which is still drying out. Run the fan or open a window after bathing.

Early snagging is easier snagging. Left alone, a small crack can become a leak in a busy bathroom.

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