Orkney Islands · Scotland
New-build mastic & snagging in Dounby, Orkney Islands
New build mastic for Dounby and the surrounding area: careful preparation, the right product and tidy work. Call for a quick quote.
- New-build shower sealant that has already split
- Sealant applied over dusty or wet surfaces
- Messy sealant that spoils new finishes
Your questions about new build mastic in Dounby
Will you come out to Dounby?
Yes, smaller places are covered as well as towns. Our work covers the whole of Scotland, including the islands, where work is planned around ferry crossings. Let us know about access, parking and anything unusual about getting there when you book.
Is there a guarantee on new build mastic in Dounby?
All our work, in Dounby and everywhere else, comes with a 12-month guarantee. We’re fully insured, and an ARBOMaster approved applicator.
How long does the job take?
It depends on the size of the job, but as a guide it takes a few hours for most snagging lists, longer for a run of plots. We’ll give you a better idea when we quote.
Can you reseal over the builder’s sealant?
No. The old sealant is cut out fully, the joint cleaned and primed where needed, before resealing.
Can I send you my snagging list?
Yes. Send it with pictures and we will quote for the sealant items. If something is not sealant, we will say so.
What does new build mastic cost?
Every job is different, so each one gets its own quote. To get one, drop us a line at info@mrmastic.co.uk with a short description of the job.
How long before the joint can be used?
It depends on the product and the conditions. Before we leave, we will tell you the cure time.
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. We use products from Arbo and Everbuild.
New build mastic for homes and businesses in Dounby
Building dust is behind a lot of failed new-build sealant. Each joint is cleaned of dust and primed where the product calls for it, so the new bead bonds properly rather than sitting on a layer of grit. We work on show homes, skirting & floors and bathrooms & en suites, and common reasons people get in touch are internal frame sealant that has split and sealant that never bonded to the surface.
New homes in smaller Scottish places are often single plots, self-builds or small developments. They need their sealant and floor joints finished just as carefully as on a big site.
The work is covered for a year after we finish. If there’s a problem with it, please email us at info@mrmastic.co.uk.
- Place
- Dounby (KW17)
- Region
- Orkney Islands
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Why deal with it now?
A failed shower or bath seal in a new home lets water into floors and walls that are still drying out. Dealing with it early keeps the damage away from ceilings, floors and finishes. Out of town in Scotland, exposed walls take a lot of weather, and once water gets behind a failed joint, damp in stone or harled walls is slow to dry out.
Leaving a failed joint usually makes the job bigger, not smaller. If you are not sure whether it needs doing, email us at info@mrmastic.co.uk for an honest opinion and a quote.
Why choose Mr Mastic in Dounby
- Full insurance on every job
- Homes, businesses and hotels
- Sealant colour chosen to suit
- A 12-month guarantee on all work
Read our cost guide or what customers say.
How the job changes by surface
Plot handovers
Good preparation at handover saves snagging later. Dust from the build is removed first and prime where the product needs it.
Show homes
Show homes need sealant that looks right from day one. Every bead is neat and coloured to suit the room.
Landlord and commercial work in Dounby
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.
We also work for property managers and facilities teams in Dounby and across the Orkney Islands. Several sites can be quoted together.
New build mastic in Dounby: local notes
Dounby is within about 3 miles 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. Many new homes in Scotland are timber-framed, so skirting and sealant joints can open up as the building settles.
Around Dounby, as everywhere, new build mastic is only as good as the preparation behind it. Whether the job is in Dounby itself or nearby, the right material for each joint matters as much as a neat finish.
Dounby is about 12 miles north-west of Kirkwall, in the Orkney Islands. Every kind of property in Dounby is covered for new build mastic. The work is guaranteed for a year. Dounby is one of 51 towns and villages in the Orkney Islands we cover for new build mastic.
Work in KW17 works the same way as everywhere else we cover. That includes homes and businesses on Flett's Park, Back Road and Hillside Road. We also cover Hourston (1 mile south), Skeabrae (1 mile west), Russland (2 miles south), Harray (3 miles south-east) and Tenston (3 miles south-west). As one of the bigger places in the Orkney Islands, Dounby has homes, rented property and businesses of every kind. For island and remote addresses, a little more planning is needed, so mention it when you ask for a quote.
Around Dounby
Other landmarks nearby include Corrigall Farm Museum (2.1 miles south-east). Green spaces nearby include Birsay moors RSPB Reserve and Greeny Hill.
Other services in Dounby
Looking after it afterwards
Once the sealant has cured, a few habits help it last:
- Record problems with dated pictures
- Avoid running a DIY bead over the old one
- Report sealant problems to your builder during the snagging period
- Clean sealant with mild detergent, not abrasives
Don’t stand on the bath edge or the lip of the tray in the first few weeks. Report any movement in a bath or tray.
Report failed sealant to the builder while you’re in the snagging period. After that, putting it right may fall to you, so raise it early.
Should I try it myself first?
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Quotes for new build mastic in Dounby
The quote reflects the job in front of us. We take into account:
- How easy the joints are to reach
- Whether there’s mould to deal with
- How many rooms, windows or areas are involved
- Any working-time requirements on site
Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What we need to know
To make quoting easier, let us know:
- Pictures of the joints, sent by email
- If it’s domestic, commercial or a hotel
- Whether it has been sealed before
- The problem you’ve noticed
Want a quote for new build mastic? Please drop us a line at info@mrmastic.co.uk and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
What happens on the day
On the day, we look over the joints with you first, so you know exactly what we’re doing. We protect the surfaces around the joints before any work starts. Most jobs take anything from a few hours to several days, depending on the number of plots. Outside jobs in Dounby need a dry day, because sealant won’t bond to a wet joint, so an outdoor job can move if the forecast changes. Work indoors is not affected.
- First we work through your snagging list or plot schedule with you.
- The old bead comes out in full, with no layer left behind.
- Each joint is cleaned of dust and grit, then primed if required.
- New sealant suited to each joint is applied and tooled neatly.
- Finally, each room is checked and you’re given the cure time.
Preparing for the visit
- Mention if the joints have been sealed before
- Plan for the work area to be out of bounds to pets and children
- Mention any sign-in or site rules at work premises
Getting a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and add pictures by email if you can.