Argyll and Bute · Scotland
Dunoon New Build Mastic
New build mastic for Dunoon, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Sealant work across a run of new homes
- Beads laid onto grit and dust from the build
- Shower seals failing in the first year or two
About our new build mastic in Dunoon
Across Dunoon, 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. Typical jobs include cracked sealant around new window and door frames and cracked caulk along new skirting, on kitchens, show homes and plot handovers.
Around smaller Scottish places like Dunoon, 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.
All of our work is guaranteed for twelve months, in Dunoon and everywhere else we cover.
- Where
- Dunoon (PA23)
- Wider area
- Argyll and Bute
- Guarantee
- One year on every job
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Why deal with it now?
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 Dunoon, small leaks are easy to put off, but water behind a failed seal does the most damage when nobody’s watching.
Every job is a little different, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we will explain the quote if you ask.
Why book with us
- Colour picked to suit the job
- Experience in homes, commercial sites and hotels
- ARBOMaster approved applicator
- Anti-fungal sanitary silicone in wet areas
Honest limits
We will always be straight with you, so here’s what sealant cannot fix:
- Your warranty claim itself, which is between you and the builder
- Cracked trays, tiles or worktops
- A tray or bath that is not properly supported, until it’s fixed
If you’re not sure, just drop us a line at info@mrmastic.co.uk and we’ll give you a straight answer.
Where we work in Dunoon
- Kitchens
- Skirting & floors
- Bathrooms & en suites
- Plot handovers
- Show homes
- Windows & doors
Also in Dunoon
Dunoon: your questions answered
Is Dunoon in your area for new build mastic?
Yes, Dunoon is within the area we cover. Our work covers the whole of Scotland. You can drop us a line at info@mrmastic.co.uk and let us know what needs doing, and we will give you a clear price.
Can you help a landlord with a rental near Inverkip station?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just email us at info@mrmastic.co.uk with the address and what needs doing, and we’ll give you a clear quote.
Can you quote for more than one area?
Of course. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
What colour sealant will you use?
Most bathroom joints are white or clear, but other colours are available. We match the colour to the finish.
Are you ARBOMaster approved?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
Is the work guaranteed?
Yes. Each job is guaranteed for twelve months.
How long will you be here?
It depends on the size of the job, but as a guide it takes anything from a few hours to several days, depending on the number of plots. We’ll tell you when we quote.
Do you remove the old sealant?
Yes. Sealing over old sealant is the main reason resealing fails early, so we never do it.
Quotes for new build mastic in Dunoon
Some jobs are bigger than they look, and some smaller. The main factors:
- When we can work, for business premises
- Whether old sealant or filler has to be cut out
- The size of the job
- Mould in or behind the old joints
The cost reflects the work involved, not a rough estimate. That is why we ask a few questions first and give you a clear price before work begins.
Asking for a quote
What to tell us when you ask for a quote:
- What the problem is, such as mould, gaps, leaks or cracking
- Any previous sealing or DIY work
- A few photos by email, if you can
- Where the property is
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.
New build mastic around Dunoon
Dunoon is within about 1 mile of the coast. New homes near the sea put their outside mastic to work from day one, so any gaps are best picked up early. Timber frame is common in newer Scottish homes, so skirting and sealant joints can open up as the building settles.
If you’ve bought a new home near Inverkip station, the sealant around baths, showers and frames is worth checking in the first year or two.
Dunoon (Gaelic: Dùn Obhainn) is about 6 miles west of Greenock, in Argyll and Bute. From the centre of Dunoon to the outskirts, we cover new build mastic for every kind of property, from flats and houses to offices and hotels. Dunoon is one of 118 places in Argyll and Bute where we work. There’s also a page for Glasgow, about 26 miles away.
Work in PA23 is quoted and booked the same way as anywhere else. New build mastic is available to properties on Queen Street, Queens Court and Pilot Street and the roads around them. Dunoon sits on or near the A815 and A885. Close by, we work in Kirn (1 mile north-east), Hunters Quay (1 mile north-east), Bullwood (2 miles south), Sandbank (2 miles north) and Strone (2 miles north). Within a short drive, we also cover Helensburgh (9 miles north-east), Rothesay (10 miles south-west), Rhu (7 miles north-east), Garelochhead (10 miles north-east), Port Bannatyne (9 miles south-west) and Innellan (5 miles south). Being one of Argyll and Bute’s larger places, Dunoon has every kind of property, from flats to offices. Remote and island addresses need a little more planning, so tell us where you are when you ask for a quote.
Local landmarks in Dunoon
Around Dunoon, our work takes us to homes and buildings near Dunoon Grammar School and the streets around them. The closest station to Dunoon is Inverkip station, roughly 3.9 miles south-east of the centre. Other landmarks nearby include Dunoon Castle (0.6 miles south) and Castle House Museum (0.6 miles south). Open spaces near Dunoon include Loch Loskin.
What the job involves on each surface
Skirting and floors
Where the floor meets a bath panel or kitchen plinth, the joint keeps mop water out. We seal them with a sealant suited to wet areas.
Show homes
In a show home, the sealant is on display. Every bead is neat and coloured to suit the room.
How to look after the new joints
To keep the joints looking good and working properly:
- Don’t wait for the house to settle if water is getting through
- Photograph failed sealant before it’s redone
- Ventilate bathrooms well, especially in the first year
- Follow the cure time we give you
Avoid standing on the rim of the bath or the edge of the tray in the first few weeks. If a bath or tray moves when you stand in it, get it looked at.
The sooner you deal with untidy or cracking sealant, the less there is to put right. Small faults turn into leaks if left.
When to call us in Dunoon
Fresh sealant can be knocked or cut by trades finishing off. A bead disturbed before it has cured may never seal properly.
The most common problems we see are:
- Joints pulling apart as timber shrinks
- Worktop and upstand sealant coming away
- Sealant work across a run of new homes
- Cracked caulk along new skirting
In and around Dunoon, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
What to look for in a quote
- Is the old sealant removed completely?
- What insurance they hold
- What product goes in the joint
- What preparation is included
How the visit works
When we arrive, we start by going over the job with you, so you know exactly what we are doing. We protect the surfaces around the joints before work begins. Most jobs take anything from a few hours to several days, depending on the number of plots. Around Dunoon, distance and access matter more than parking. Let us know how to find you and how to reach the joints, and the visit is planned around that.
- First we work through your snagging list or plot schedule with you.
- Failed or untidy sealant is cut out completely.
- Each joint is cleaned of dust and grit, then primed if required.
- We apply a sealant that suits each joint and tool it to a neat finish.
- We check every joint and tell you how long each needs to cure.
Preparing for the visit
- Mention any leaks or damp you’ve noticed
- Let us know about parking restrictions
- Mention any tricky access
How to get a quote
If you are in Dunoon and need new build mastic, email us at info@mrmastic.co.uk. Tell us what the problem is and where, and you will get a clear quote before any work starts.