Midlothian · Scotland
New-build mastic & snagging in Loanhead, Midlothian
New build mastic in Loanhead from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Joints pulling apart as timber shrinks
- Untidy sealant flagged on a snagging list
- Leaking shower tray seals in a new home
New build mastic for homes and businesses in Loanhead
Failed shower seals, gaps along the skirting and messy beads are common items on a new-home snagging list. If you are still within the builder’s snagging or warranty period, tell them first. We are often asked to deal with frame joints opening as the plaster dries and worktop and upstand sealant coming away, on kitchens, skirting & floors and windows & doors.
New homes in smaller Scottish places are often single plots, self-builds or small developments. Each needs its sealant and floor joints finished as carefully as on a big site.
Big or small, you get the same 12-month guarantee.
- Location
- Loanhead (EH20)
- Wider area
- Midlothian
- Guarantee
- 12 months on all our work
- 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. Dealing with it early keeps the damage away from ceilings, floors and finishes. In an older home around Loanhead, damp from a failed joint can get into timber and plaster, which is a far bigger job than the sealant.
Combining jobs into one visit usually makes better use of the time than several visits, so tell us about everything that needs sealing. We’ll give you a clear quote for the lot.
Why choose Mr Mastic in Loanhead
- 180+ five-star Google reviews
- Any old sealant cut out fully, not covered over
- A choice of colours where the product allows
- Tidy, careful work
Read our cost guide or what customers say.
New homes and floors in Loanhead
Many new homes in Scotland are timber-framed, so skirting and sealant joints can open up as the building settles.
Around Loanhead, as everywhere, new build mastic is only as good as the preparation behind it.
Loanhead is about 2 miles west of Bonnyrigg, in Midlothian. For new build mastic in and around Loanhead, please email us at info@mrmastic.co.uk for a quick quote. We’re based in Crawley and cover Midlothian, Loanhead included. Loanhead is one of 33 places in Midlothian where we work.
We work across EH20 for new build mastic and the streets around it. If you need new build mastic at a property on Station Road, Main Street and High Street or a nearby road, our applicators can take on the job. Main roads around Loanhead include the A701 and A768. We also cover the places around Loanhead: Old Pentland (1 mile west), Bilston (1 mile south-west), Polton (1 mile south-east), Burdiehouse (1 mile north) and Roslin (1 mile south). Further out, we also cover Dalkeith (4 miles east), Penicuik (4 miles south-west), Gorebridge (5 miles south-east), Newtongrange (4 miles east), Mayfield (5 miles east) and Shawfair (4 miles north-east). Being one of Midlothian’s larger places, Loanhead has every kind of property, from flats to offices.
Landmarks near Loanhead
The nearest railway station is Eskbank station, about 2.9 miles east. Other landmarks nearby include Cameron Toll Shopping Centre (3.3 miles north) and Glencorse Museum (3 miles south-west). Not far away are Caerketton Hill and The New Leaf Co-op.
What we are called out for in Loanhead
Fresh sealant can be knocked or cut by trades finishing off. A bead disturbed before it has cured may never seal properly, and the problem shows up after you move in.
Any of these means the joints need attention:
- Cracked caulk along new skirting
- Cracked sealant around new window and door frames
- Second-fix sealing on new plots
- Gaps opening as the house dries out and settles
For new homes near Eskbank station, it’s worth checking the sealant early, while snags are still fresh.
Before you book anyone
- What happens if the job turns out different
- Whether they’re fully insured
- Which sealant they’ll use, and why
- The length of the guarantee
When something else is needed
We will not take on work that won’t last, so these are the limits:
- Damaged fittings that need replacing
- Movement caused by a poorly fitted tray or bath
- Deciding who is responsible under a builder’s warranty
If in doubt, email us at info@mrmastic.co.uk and we will say what we think.
Surfaces we seal
- Kitchens
- Plot handovers
- Skirting & floors
- Windows & doors
- Show homes
- Bathrooms & en suites
How it works
When we arrive, we look over the joints with you first. We protect the surfaces around the joints before any work begins. The work normally takes a few hours for most snagging lists, longer for a run of plots. Somewhere like Loanhead may be a longer drive, and the journey is planned ahead. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- Each joint is checked for movement before any work starts.
- 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.
Getting ready for the visit
- Plan for the work area to be out of bounds to pets and children
- For business premises, tell us about site rules or sign-in
- Tell us about any water getting in
Get a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
Read more
Landlords, agents and businesses in Loanhead
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Loanhead questions
Can you do new build mastic in Loanhead?
Yes, Loanhead is within the area we cover. We work across all of Scotland. Just email us at info@mrmastic.co.uk with a few details of the job, and we will give you a clear quote.
Can you help a landlord with a rental near Eskbank station?
Yes, we work for landlords and agents. You can email us at info@mrmastic.co.uk with the address and a few details, and we will give you a fixed price before we start.
Can you work from my snagging list?
Yes. Snagging lists are a common starting point for us. We agree the sealant items with you before any work starts.
Are you insured?
Yes, we’re fully insured.
Will you just run a new bead over the existing one?
No. Over-sealing traps mould and water and soon fails. All the old sealant comes out before any work starts.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. We cover Loanhead and the rest of Midlothian.
How long should I leave it?
Different products cure at different speeds, so please follow the time we give you when we finish.
Can you do several jobs on one visit?
Yes. Several rooms, windows or areas can go on one quote.
How to look after the new joints
To keep the joints looking good and working properly:
- Ventilate bathrooms well, especially in the first year
- Resist patching a failed seal with a tube from the DIY shop
- Follow the cure time we give you
- Watch for new gaps as the house dries out
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.
Places near Loanhead
What else we do in Loanhead
DIY versus a professional finish
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.