Edinburgh · Scotland
Bonaly New Build Mastic
Plot mastic for developers and snagging failed sealant in new homes for householders, landlords and businesses in Bonaly. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Plot mastic for developers ahead of handover
- Smeared, uneven beads picked up at snagging
- Internal frame sealant that has split
DIY sealant or a professional job?
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
New build mastic in Bonaly, done properly
Some new-home owners let the house settle before resealing. For small cosmetic gaps, that’s reasonable, but a seal that is letting water through needs doing now. We work on skirting & floors, bathrooms & en suites and windows & doors, and common reasons people get in touch are cracks appearing as a new home settles and smeared, uneven beads picked up at snagging.
Timber frame is common in newer Scottish homes, and it settles over the first years, which shows as gaps at skirtings and floor joints. Older stone-built homes, meanwhile, often have timber floors that move with the seasons.
Whatever the size of the job, it’s backed by our 12-month guarantee in Bonaly and across Edinburgh.

- Location
- Bonaly (EH13)
- Wider area
- Edinburgh
- Guarantee
- One year on every job
- Quote
- A clear price before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Quotes for new build mastic in Bonaly
You will get a clear quote before work begins. It’s based on:
- The number and length of the joints
- How many rooms, windows or areas are involved
- Working hours on commercial sites
- How easy the joints are to reach
What you pay reflects the work, not guesswork. That is why we ask about the job first and send you a clear quote before work begins.
Asking for a quote
Photos help, but a description is a good start. Try to tell us:
- Photos by email, if that’s easy
- Any previous sealing or DIY work
- The problem you’ve noticed
- Access, such as stairs, a lift or height
For a quote, drop us a line at info@mrmastic.co.uk and tell us where the job is and what the problem looks like. You will have a clear quote before we start.
What we can’t put right
We’ll always be straight with you, so here’s what new sealant will not do:
- Movement caused by a poorly fitted tray or bath
- Cracking that points to a structural problem
- Leaking fittings rather than failed sealant
If you are not sure, just send an email to info@mrmastic.co.uk and we’ll give you a straight answer.
Surfaces we seal
- Kitchens
- Skirting & floors
- Bathrooms & en suites
- Windows & doors
- Show homes
- Plot handovers
For landlords and businesses
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
For anyone letting property in or around Bonaly, several properties can be quoted together. Send us the addresses and the work at each, and photos by email help.
How it works
We bring everything the job needs with us, so there’s nothing for you to buy. Once we’ve agreed what’s being done, the area is protected and the work begins. It normally takes a few hours for most snagging lists, longer for a run of plots. Outside jobs in Bonaly need a dry day, because sealant will not bond to a wet joint, so external jobs may need to move if the day turns wet. Work indoors isn’t affected.
- Each joint is checked for movement before we start.
- Old sealant is cut out and the joints cleaned.
- We make sure the joints are dry and prime them if needed.
- Baths are filled with water, then the new sealant is applied.
- The finished joints are checked and the cure times given.
Preparing for the visit
- Try not to wet indoor joints just before the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Mention if the joints have been sealed before
Get a quote
We don’t publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, email us at info@mrmastic.co.uk.
Read more
Joints and finishes in Bonaly homes
Timber frame is common in newer Scottish homes, and as the frame dries and settles, skirting and sealant joints can open up.
In and around Bonaly, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Bonaly is about 3 miles south-west of Merchiston, in Edinburgh. Whether you are in the middle of Bonaly or further out, we cover new build mastic for every kind of property, from flats and houses to offices and hotels. Bonaly is one of 175 towns and villages in Edinburgh we cover.
We work across the EH13 postcode area for new build mastic and the streets around it. You’ll find streets such as Bonaly Road, Bonaly Avenue and Munro Drive, and we cover them all. If you are just outside Bonaly, we cover Torphin (1 mile west), Swanston (2 miles east), Milton Bridge (4 miles south-east), Penicuik (5 miles south) and Silverburn (5 miles south). Within a short drive, we also cover Edinburgh (4 miles north-east), Leith (7 miles north-east), Bonnington (6 miles north-east), Greenside (5 miles north-east), Broughton (5 miles north-east) and Bellevue (5 miles north-east).
Landmarks near Bonaly
Around Bonaly, our work takes us to homes and buildings near Juniper Green Parish Church and Firrhill High School, among other places. The closest station to Bonaly is Kingsknowe station, about 1.6 miles north of the centre. A little further out are War Poets Collection (2.3 miles north-west) and Craiglockhart Hydropathic (1.7 miles north-east). Open spaces near Bonaly include White Hill and The New Leaf Co-op.
Common questions in Bonaly
Is Bonaly in your area for new build mastic?
Yes. Our work covers the whole of Scotland, and Bonaly is part of that. You can send an email to info@mrmastic.co.uk and let us know what needs doing, and we will give you a clear quote.
Is Bonaly within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers the whole of Scotland. Just mention lanes, gates or anything else about the route when you book.
Do you remove the old sealant?
Yes. Sealing over the old bead is the commonest cause of early failure, so we never do it.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. Our applicators cover Bonaly, along with the rest of our area.
Should I wait before resealing?
If the seal has failed and water is getting in, do it now. Hairline cosmetic gaps can wait until the house has settled.
Do you work for landlords and businesses?
Yes, regularly. We can quote for several properties at once.
Are you insured?
Yes. Full insurance covers our work.
Can I send you my snagging list?
Yes. We often work straight from a snagging list. We’ll go through the sealant items and agree what we’ll do.
Places near Bonaly
More services for Bonaly
Keeping the joints in good condition
To keep the joints looking good and working properly:
- Check bath and shower seals every few months as the house settles
- Keep water off fresh sealant until it has cured
- Use the extractor fan every time you shower
- Report sealant problems to your builder during the snagging period
Photograph failed sealant before it’s redone and keep the builder’s replies. It helps if anything else comes up during the warranty period.
A seal that splits early is often a sign of movement. Getting it resealed properly, and any movement checked, stops it recurring.
When to call us in Bonaly
On many sites, sealant goes on in the final rush before handover. Joints are not always cleaned of dust or primed, and the sealant sits on grit instead of the surface.
People generally contact us when they notice something like this:
- Second-fix sealing on new plots
- Sealant applied over dusty or wet surfaces
- Leaking shower tray seals in a new home
- Gaps between new skirting and floors
If you’ve bought a new home near Kingsknowe station, the sealant around baths, showers and frames is worth checking in the first year or two.
What your quote should include
- How long to leave it before use
- What product goes in the joint
- How much experience the applicator has
- How the joint is cleaned and prepared
