South Lanarkshire · Scotland
New Build Mastic in Crawfordjohn
Problem with your new-build sealant joints in Crawfordjohn? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Messy sealant that spoils new finishes
- Second-fix sealing on new plots
- Sealant applied over dusty or wet surfaces
How we handle new build mastic in Crawfordjohn
New homes move as they dry out. Timber dries and shrinks, and baths and trays settle, and sealant applied in a hurry at handover can split. If you are dealing with gaps between new skirting and floors and sealant that never bonded to the surface, we can put it right, on show homes, skirting & floors and plot handovers alike.
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.
- Place
- Crawfordjohn (ML12)
- Wider area
- South Lanarkshire
- Guarantee
- One year on every job
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
New build mastic in Crawfordjohn: local notes
Many new homes in Scotland are timber-framed, and as the frame dries and settles, skirting and sealant joints can open up.
In and around Crawfordjohn, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Crawfordjohn is about 16 miles south of Carluke, in South Lanarkshire. Whether you are in the middle of Crawfordjohn or further out, we cover new build mastic for every kind of property, from flats and houses to offices and hotels. 139 places in South Lanarkshire are on our list, large and small. You can also see our page for Glasgow, roughly 32 miles from Crawfordjohn.
All of ML12 is within our area for new build mastic, from the main roads to the quietest streets. Streets in the area include Main Street, The Loaning and Cross Road. Other places close to Crawfordjohn include Abington (3 miles east), Douglas (5 miles north-west), Roberton (5 miles north-east), Crawford (5 miles east) and Glespin (5 miles north-west). Larger places within reach include Lanark (12 miles north), Lesmahagow (11 miles north-west), Biggar (13 miles north-east), Kirkmuirhill (13 miles north-west), Blackwood (14 miles north-west) and Coalburn (8 miles north-west).
Near you in Crawfordjohn
Other landmarks nearby include Crawfordjohn Heritage Venture (under half a mile south) and Lady Home Hospital (5 miles north-west).
Crawfordjohn: your questions answered
Is new build mastic in Crawfordjohn guaranteed?
Every job comes with our 12-month guarantee, wherever it is. We’re fully insured, and an ARBOMaster approved applicator.
Is Crawfordjohn in your area for new build mastic?
Yes. We work across all of Scotland, and Crawfordjohn is part of that. Just send an email to info@mrmastic.co.uk with a few details of the job, and we will send you a clear quote.
Do you have insurance?
Yes. Mr Mastic is fully insured.
Do I need to be at home?
That depends on where the joints are. For work indoors, someone needs to let us in.
What colour sealant will you use?
We use white, clear or a colour to suit the finishes. Tell us what you’d like when you get a quote.
Where is Mr Mastic based?
Our base is Crawley. Our area covers South East England, London and Scotland.
Can new sealant go on top of the old bead?
No. We always remove the existing bead, the joint cleaned and primed where needed, and a new bead applied.
Should I go to my builder first?
Start with the builder if you are in the snagging or warranty period. If it isn’t resolved, we can reseal it properly.
How the visit works
Most of a good job is in the preparation, and we don’t rush it. Every joint is cleaned and dried before new material goes in. All told, the work takes anything from a few hours to several days, depending on the number of plots. Around Crawfordjohn, distance and access matter more than parking. 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.
- Every bit of the old builder’s sealant is cut out, with no layer left behind.
- Joints are vacuumed and cleaned of building dust.
- We prime where needed and apply a sealant suited to each joint.
- Each bead is tooled and the cure times explained.
Preparing for the visit
- Keep pets and children clear of the area while we work
- Mention any parking rules near the property
- Clear items away from the joints we are working on
Getting a quote
For a quick quote, get us on the phone, or email us if that’s easier. Tell us about the joints that need doing and we’ll explain what’s involved.
Advice
DIY sealant or a professional job?
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly, so tell us about it when you ask for a quote.
Landlords, agents and businesses in Crawfordjohn
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. Several properties can be quoted together.
In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.
More services for Crawfordjohn
Why deal with it now?
Resealing everything on a snagging list in one visit is normally simpler than chasing joints one at a time. You get one visit and one clear quote for the lot. Exposed walls in smaller Scottish places take a lot of wind and rain, 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 the cost depends so much on the job itself. For a quick quote, please email us at info@mrmastic.co.uk.
Why choose Mr Mastic in Crawfordjohn
- A 12-month guarantee on all work
- Colour agreed with you before we start
- We never seal over old sealant
- Rated 4.9 stars on Google
How we quote for new build mastic
Your quote is based on your job. We look at:
- The number of rooms or windows
- The number and length of the joints
- How easy the joints are to reach
- Whether old sealant or filler has to be cut out
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. You’ll know the price before we begin.
What we need to know
To help us quote quickly, please include:
- Any access issues, like height or stairs
- The rough size of the job
- If someone has resealed it before
- Pictures of the joints, sent by email
For new build mastic in Crawfordjohn, drop us a line at info@mrmastic.co.uk. Tell us what the problem is and where, and we’ll agree the price before any work begins.
Surface by surface
Skirting and floors
Floors and skirting move as the house dries and the heating runs. Caulk cracks; a flexible sealant moves with it in a colour to suit.
Plot handovers
Plot mastic is carried out to the developer’s schedule. Joints are prepared properly before sealing to keep callbacks down.
Do you need new build mastic in Crawfordjohn?
New homes are full of moisture from plaster, screed and concrete, which takes a year or two to dry out. As it does, timber shrinks and joints open, and sealant that cannot keep up splits.
Keep an eye out for any of the following:
- Gaps between new skirting and floors
- Sealant that never bonded to the surface
- Messy sealant that spoils new finishes
- Cracked sealant around new window and door frames
Whether the job is in Crawfordjohn itself or nearby, the right material for each joint matters as much as a neat finish.
What to look for in a quote
- How long to leave it before use
- What happens if they find a problem under the old sealant
- How much experience the applicator has
- What guarantee comes with the work