Scottish Borders · Scotland
New Build Mastic in Selkirk
Professional new build mastic in and around Selkirk, with old sealant always removed completely.
- Kitchen sealant that has pulled off the wall
- Second-fix sealing on new plots
- Sealant applied over dusty or wet surfaces
New build mastic in Selkirk, done properly
Dust is the enemy of new-build sealant. We clean every joint thoroughly and prime where the surface and product need it, so the new bead bonds properly. If you’re dealing with new-build shower sealant that has already split and second-fix sealing on new plots, 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. Older stone-built homes, meanwhile, often have timber floors that move with the seasons.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we will sort it.
- Location
- Selkirk (TD7)
- Wider area
- Scottish Borders
- Cover
- A year, on every job
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
What affects the cost of new build mastic
Every job gets its own quote. These are the things that affect it:
- Any mould that needs treating
- How many areas need sealing
- The type of sealant required
- How much there is to do
Rather than a set price list, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What to tell us for a quote
When you call or email, it’s useful to know:
- A few photos by email, if you can
- What’s wrong with the joints now
- Whether it has been sealed before
- How many joints, rooms or windows are involved
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we’ll talk you through the work before giving you a price.
Nearby places to Selkirk
Other services in Selkirk
Honest limits
New sealant can’t fix everything, and we’d rather say so up front. Sealant will not put right:
- Deciding who is responsible under a builder’s warranty
- Structural cracks in walls or ceilings
- Damaged fittings that need replacing
Not sure which it is? You can email us at info@mrmastic.co.uk and we’ll tell you honestly before you book.
Surfaces we seal
- Kitchens
- Skirting & floors
- Show homes
- Windows & doors
- Bathrooms & en suites
- Plot handovers
How to look after the new joints
After the cure time, these simple habits help:
- Watch for new gaps as the house dries out
- Act quickly if a seal starts to leak
- Open a window or run the fan after bathing
- Report sealant problems to your builder during the snagging period
Keep the bathroom ventilated, especially in the first year. Run the fan or open a window after bathing.
Report failed sealant to the builder while you’re in the snagging period. Once it ends, the repair may be down to you, so raise it early.
For landlords and businesses
If you manage several properties in or around Selkirk, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs.
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
Why act early in Selkirk
A quick bead over the top of the old sealant can look fine at first, but it can’t bond to what’s underneath. A lasting seal starts with removing the old one completely. 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.
There are no prices on our website, because each job is priced on what it involves. For a quick quote, please send an email to info@mrmastic.co.uk.
Why Selkirk customers choose us
- We never seal over old sealant
- Approved under the ARBOMaster scheme
- Sealant colour chosen to suit
- Over 20 years’ experience
See our cost guide or our reviews.
Joints and finishes in Selkirk homes
Many new homes in Scotland are timber-framed, so skirting and sealant joints can open up as the building settles.
If you’ve bought a new home near Galashiels station, the sealant around baths, showers and frames is worth checking in the first year or two. Around Selkirk, as everywhere, new build mastic is only as good as the preparation behind it.
Selkirk is about 5 miles south of Galashiels, in the Scottish Borders. Every kind of property in Selkirk can book us for new build mastic, old or new, large or small. The work is guaranteed for a year. Selkirk is one of 89 places in the Scottish Borders where we work for new build mastic. You can also see our page for Edinburgh, about 31 miles away.
Our applicators cover all of TD7 for new build mastic. New build mastic is available to properties on High Street, Market Place and Station Road. Being close to the A7 and A707, Selkirk is simple for us to get to. If you are just outside Selkirk, we cover Boleside (3 miles north-east), Midlem (4 miles east), Broadmeadows (4 miles west), Ashkirk (4 miles south) and Yarrowford (4 miles west). Further out, we also cover Galashiels (5 miles north), Hawick (9 miles south), Peebles (15 miles north-west), Jedburgh (12 miles south-east), Wilton (9 miles south) and Innerleithen (10 miles north-west). As one of the bigger places in the Scottish Borders, Selkirk has homes, rented property and businesses of every kind.
Around Selkirk
Typical jobs here are in homes near Town Arms Inn and the streets around them. Selkirk’s nearest station is Galashiels station, roughly 5 miles north of the centre. Well-known places in the area include Borders General Hospital (5 miles north-east) and Peel Hill (less than half a mile south). The countryside around Selkirk includes Hare and Dunhog Mosses and Haining Loch.
Your questions about new build mastic in Selkirk
Do you cover smaller places like Selkirk?
Yes, Selkirk is covered. Our work covers the whole of Scotland, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Is Selkirk in your area for new build mastic?
Yes, Selkirk is within the area we cover. Our work covers the whole of Scotland. Just drop us a line at info@mrmastic.co.uk with a few details of the job, and we will send you a clear quote.
Can I send you my snagging list?
Yes. Snagging lists are a common starting point for us. We agree the sealant items with you before any work starts.
When is the best time to reseal in a new build?
It depends on whether water is getting through. Failed seals in wet areas need doing now, but cosmetic gaps can wait for movement to slow.
Do you take out the old sealant first?
Yes. We cut out all the old sealant and clean the joint before resealing.
How long does the job take?
Most jobs take anything from a few hours to several days, depending on the number of plots, including the preparation. We’ll confirm how long when we quote.
What information do you need?
Only a few details: the address or postcode, what’s wrong and any access issues. After that, simply send an email to info@mrmastic.co.uk.
Are you insured?
Yes. Mr Mastic is fully insured, and we’ve been doing sealant work for more than 20 years.
Different surfaces, different methods
Kitchens
Worktops in new homes can move slightly as the house dries, opening gaps behind the upstand. A fresh flexible bead closes them.
Skirting and floors
Floors and skirting move as the house dries and the heating runs. Caulk cracks; a flexible sealant moves with it painted or coloured to suit.
What happens on the day
Before we leave, we go over the finished joints with you. The visit itself generally takes anything from a few hours to several days, depending on the number of plots, depending on the size of the job. In smaller Scottish places, parking is normally less of an issue than access and distance. Tell us how to find the property and how to reach the work.
- First, the list of joints is agreed from your snagging sheet or plot schedule.
- The failed sealant is removed completely, with no layer left behind.
- We clean out the dust and grit left from the build.
- Primer goes on where the surface and product need it, then the new sealant.
- We tool every joint neatly and tell you when each area can be used.
Getting ready for the visit
- Mention if the joints have been sealed before
- Keep pets and children clear of the area while we work
- Clear items away from the joints we’re working on
Getting a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is. Whenever you are ready, email us at info@mrmastic.co.uk.