Midlothian · Scotland
New-build mastic & snagging in Gowkshill, Midlothian
Plot mastic for developers and snagging failed sealant in new homes in Gowkshill, with a one-year guarantee on every job. Ask us for a quote.
- New-build shower sealant that has already split
- Cracked caulk along new skirting
- Cracks appearing as a new home settles
Gowkshill questions
Will you come out to Gowkshill?
Yes, smaller places are covered as well as towns. We work across all of Scotland. Just mention lanes, gates or anything else about the route when you book.
Do you work for landlords with property near Newtongrange station?
Yes. We work for landlords and letting agents as well as homeowners, and several properties can go on one quote. You can email us at info@mrmastic.co.uk with the details for a clear quote.
Do the sealants smell?
Possibly a little. It fades as the sealant cures, and ventilation helps.
How do I get a quote for new build mastic in Gowkshill?
The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote and we’ll talk you through it.
Can I send you my snagging list?
Yes. Send us the sealant items on the list, with photos if you can and we’ll give you a quote. We’ll tell you if anything on it isn’t a sealant job.
Will it make a mess?
Not at all. The area is protected while we work and cleaned up afterwards.
Are you an approved applicator?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
When is the sealant fully cured?
That depends on the sealant used, so please follow the time we give you when we finish.
New build mastic for homes and businesses in Gowkshill
Some owners wait for the first year’s movement before having joints redone. That makes sense for small gaps that are just cosmetic, but a failed shower or bath seal shouldn’t wait. Common call-outs are for untidy sealant flagged on a snagging list and worktop and upstand sealant coming away, on windows & doors, plot handovers and kitchens.
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.
A 12-month guarantee comes as standard.
- Location
- Gowkshill (EH23)
- Region
- Midlothian
- Cover
- One year on every job
- Quote
- A clear price before we start
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Can I do it myself?
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
What we can’t put right
Before booking, it’s worth knowing the limits:
- Broken tiles or a split tray
- Plumbing faults behind the sealant
- Movement caused by a poorly fitted tray or bath
If in doubt, drop us a line at info@mrmastic.co.uk and we will say what we think.
What we seal
- Bathrooms & en suites
- Kitchens
- Windows & doors
- Plot handovers
- Skirting & floors
- Show homes
Why act early in Gowkshill
Resealing everything on a snagging list in one visit is usually simpler than chasing joints one at a time. You get one visit and one clear quote for the lot. Out of town in Scotland, exposed walls take a lot of weather, and damp in stone or harled walls takes a long time to dry once water gets behind a joint.
The cost depends on the amount of work, how hard the old material is to remove and how easy the joints are to reach. You’ll have a clear quote before any work starts.
Why Gowkshill clients choose us
- Over 20 years’ experience
- We leave the area clean and tidy
- Anti-fungal silicone where joints get wet
- We’re fully insured
Take a look at our cost guide and our reviews.
When to call us in Gowkshill
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.
If you can see any of these, it’s time to have the joints looked at:
- New-build shower sealant that has already split
- Sealant work across a run of new homes
- Gaps opening as the house dries out and settles
- Internal frame sealant that has split
Around Gowkshill, as everywhere, new build mastic is only as good as the preparation behind it.
What your quote should include
- Who turns up on the day
- How long the guarantee is
- Is VAT in the price?
- What the cure time is
Different surfaces, different methods
Windows and doors
Draughts around new frames are often a sealant gap. We look at the joints and reseal where needed.
Bathrooms and en suites
New-build bathrooms and en suites are where sealant fails most often. We cut out the failed bead, clean and prime, and reseal with anti-fungal sanitary silicone.
What happens on the day
You don’t need to clear the whole room or building, just the space around the work. Everything nearby is protected, and the job takes a few hours for most snagging lists, longer for a run of plots for a typical job. Somewhere like Gowkshill may be a longer drive, and the journey is planned ahead. Mention tracks, gates, ferries or anything else about the route.
- We look at why each joint failed, including any movement.
- Old sealant is cut out and the joints cleaned.
- Joints are dried and primed where the product calls for it.
- Baths are filled with water, then the new sealant is applied.
- The finished joints are checked and the cure times given.
Before we arrive
- Move anything stored near the joints
- Tell us about any previous sealing or DIY attempts
- Tell us about any water getting in
Get a quote
Call for a quick quote, or email us if that’s easier. Describe what needs sealing and we will explain what’s involved and give you a clear quote.
Read more
Landlords, agents and businesses in Gowkshill
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. We can quote for more than one property at once.
Letting agents often deal with us directly. Tell us the address, the job and how access works and we’ll quote.
New homes and floors in Gowkshill
Many new homes in Scotland are timber-framed, so skirting and sealant joints can open up as the building settles.
For new homes near Newtongrange station, it’s worth checking the sealant early, while snags are still fresh.
Gowkshill is about 2 miles south-east of Bonnyrigg, in Midlothian. Wherever you are in the EH23 postcode area, we can carry out new build mastic at your property. We cover 33 towns and villages across Midlothian. Our Edinburgh page covers work nearby (8 miles or so).
All of EH23 is within our area for new build mastic. Whether your property is on The Crescent and Stobhill Road or a nearby road, we can help. If you are just outside Gowkshill, we cover Newtongrange (1 mile north), Gorebridge (1 mile south), Mayfield (1 mile north-east), Birkenside (2 miles south) and Easthouses (2 miles north). Further out, we also cover Penicuik (7 miles west), Loanhead (4 miles west), Shawfair (5 miles north), Danderhall (4 miles north-west), Rosewell (3 miles west) and Roslin (4 miles west).
What’s near Gowkshill
Around Gowkshill, our work takes us to homes and buildings near The Dean Tavern. The closest station to Gowkshill is Newtongrange station, about 0.7 miles north-west of the centre. A little further out are Midlothian Community Hospital (2 miles north-west) and Dalhousie Castle (1.1 miles west). For a walk, there’s Edgelaw Reservoir.