Midlothian · Scotland
Remedial Sealant in North Middleton
Removing failed, mouldy or leaking sealant and putting it right in North Middleton, with a 12-month guarantee on every job. Call for a quick quote.
- Products that weren’t meant for the joint
- Smears and lumps from a botched reseal
- Torn expansion joints
Remedial sealant in North Middleton
Decorators’ caulk in a shower, bathroom silicone on a window, a rigid filler in a movement joint will not last, however tidy it looks. We take it out and use a sealant made for that joint. We’re often asked to deal with dark patches showing through the sealant and products that weren’t meant for the joint, across mouldy bath & shower sealant, failed movement joints and botched or over-sealed joints.
Across smaller places in Scotland, homes range from stone and harled cottages to newer houses. Where a building moves, cracked grout and split sealant are normally the first signs.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Where
- North Middleton (EH23)
- Region
- Midlothian
- Guarantee
- A year, on every job
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026

How it works
There isn’t much for you to do on the day. Show us the job and we’ll take it from there. The job generally takes a few hours, depending on how many layers have to come out. Outside jobs in North Middleton need a dry day, because sealant will not bond to a wet joint, so an outdoor job can move if the forecast changes. Work indoors isn’t affected.
- First we work out whether the problem is the sealant, movement or a leak.
- Old beads and residue are removed down to clean surfaces.
- Mould is treated and the joint dried.
- We reseal with a product suited to the joint, backed where needed.
- The joint is tooled and you’re told about anything else we found.
How to prepare
- On commercial sites, let us know about site rules
- Try not to wet indoor joints just before the visit
- Plan for the work area to be out of bounds to pets and children
Ask for a quote
We do not publish a price list, because every job is different. Instead, your job gets its own clear quote. To get started, send an email to info@mrmastic.co.uk.
Related advice
Should I try it myself first?
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
A DIY attempt does not rule out a professional job. We remove it and do the joint properly, so just mention it when you contact us.
Signs you need remedial sealant in North Middleton
Products get mixed up: acrylic caulk in a wet area, a general-purpose sealant on a moving joint, or an acetoxy silicone on natural stone or some metals. Each fails in its own way.
Any of these means the joints need attention:
- Worktop sealant that has shrunk and split
- Over-sealed joints coming away
- Dark patches showing through the sealant
- Leaks that keep coming back after resealing
For an older house near a landmark such as Borthwick Church, timber floors under older bathrooms flex, so joints need a sealant that moves with them.
Questions to ask before you book
- How the colour is chosen
- What the cure time is
- Whether VAT is included
- The length of the guarantee
Remedial sealant in North Middleton: local notes
Scotland’s water is generally soft, so sealant and grout see less limescale than in much of England. Mould is another matter: a bathroom that stays damp still turns sealant and grout black. In Scotland, private landlords have to meet the Repairing Standard, which includes keeping fixtures and fittings in reasonable repair. Failed sealant around a bath or shower is worth sorting between tenancies.
Letting a property close to Gorebridge station? Then a joint that keeps failing is best fixed properly while the property is empty.
North Middleton is about 5 miles south-east of Bonnyrigg, in Midlothian. Our applicators cover remedial sealant for householders, landlords and businesses in North Middleton and the surrounding area, as part of our work across Midlothian. North Middleton is one of 33 places in Midlothian we cover. You can also see our page for Edinburgh, roughly 11 miles from North Middleton.
Jobs for remedial sealant in EH23 is quoted and booked the same way as anywhere else. Streets in the area include Borthwick Castle Place, Cleuch Road and Borthwick Castle Terrace, and we cover them all. If you are just outside North Middleton, we cover Arniston (1 mile north-west), Birkenside (1 mile north-west), Gorebridge (2 miles north-west), Carrington (3 miles west) and Gowkshill (3 miles north-west). Within a short drive, we also cover Bonnyrigg (5 miles north-west), Dalkeith (5 miles north), Penicuik (8 miles west), Loanhead (7 miles north-west), Newtongrange (4 miles north-west) and Shawfair (8 miles north).
What’s near North Middleton
North Middleton’s nearest station is Gorebridge station, roughly 1.6 miles north-west of the centre. Nearby you’ll also find Catcune Castle (1 mile north-west) and Midlothian Community Hospital (4.9 miles north-west). Green spaces nearby include Edgelaw Reservoir.
Also near North Middleton
Other services in North Middleton
Landlord and commercial work in North Middleton
Housing providers, facilities teams and property managers book us too. Several sites can be quoted together.
If you manage several properties in or around North Middleton, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs.
North Middleton questions
Can you do remedial sealant in North Middleton?
Yes. Our work covers the whole of Scotland, and North Middleton is part of that. Just drop us a line at info@mrmastic.co.uk with a few details of the job, and we’ll send you a clear quote.
Will you come out to North Middleton?
Yes, North Middleton is covered. Our work covers the whole of Scotland, and smaller places are part of that. Longer journeys are simply planned in advance.
Do I have to be there?
It depends on the job. Inside work needs someone to give us access, and for outside work we’ll agree access with you when we book.
Do the sealants smell?
That depends on the sealant. Some smell for a while, some hardly at all, and any smell fades as they cure.
Can you fix a reseal that hasn’t worked?
Yes. All the sealant comes out, we find out why it failed, and the joint is resealed properly.
Can you strip sealant from an acrylic tray safely?
Yes. Residue is removed with a product suited to the surface rather than scraped hard.
Is it messy?
No. We protect the surfaces around the joints, and we tidy up before we go.
Where are you based?
We’re a Crawley-based firm. We work across South East England, London and Scotland.
Why it’s worth doing now in North Middleton
Another bead over the top will not fix a failed joint. It doesn’t grip the old layer, leaving the leak in place and one more layer to cut out later. In a place like North Middleton, small leaks are easy to put off, but water through a failed joint keeps working away until it’s fixed.
We do not show prices on the website, because the cost depends so much on the job itself. Call for a quick quote and we’ll talk you through it.
Why North Middleton clients choose us
- We are fully insured
- 20+ years of sealant experience
- Colour picked to suit the job
- 4.9 on Google from 180+ five-star reviews
Read our cost guide or our reviews.
Different surfaces, different methods
Windows & doors
Failed frame mastic is often hard, cracked and in several layers. We remove it all and clean back to sound surfaces.
Movement & expansion joints
Joints filled with mortar, grout or rigid filler can’t move. We rake that out where it can be removed and seal with a flexible product.
How to look after the new joints
Good habits help new joints last longer. Our tips:
- Act on a lifting corner right away
- Keep movement joints clear of mortar and paint
- Always have old sealant cut out, not covered
- Ask why a joint failed before redoing it
Clean gently: a mild cleaner and a soft cloth, with no blades or scourers.
Leaks through failed sealant grow over time. Every shower or downpour sends more water through, into whatever is behind or below. Sorting it early limits the damage.
