Scottish Borders · Scotland
Remedial sealant & repairs in St Boswells, Scottish Borders
Remedial sealant in St Boswells from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Black mould underneath the bead
- Torn expansion joints
- Smears and lumps from a botched reseal
How it works
We keep the work tidy and contained to the area we’re working on. Expect the work to take a few hours, depending on how many layers have to come out, and we explain the cure time before we leave. Around St Boswells, distance and access matter more than parking. Let us know how to find you and how to reach the joints.
- The failure is looked at first, so we know whether it’s sealant, movement or water from elsewhere.
- Each layer is cut out and the residue cleaned off.
- 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.
Getting ready for the visit
- Keep pets and children clear of the area while we work
- Tell us about any previous sealing or DIY attempts
- Tell us about access, such as stairs, a lift or high-level joints
Get a quote
Call for a quick quote, or email us if that’s easier. Tell us about the joints that need doing and we’ll talk you through the work and give you a clear quote.
Related advice
Remedial sealant in St Boswells
Removing failed sealant is the hardest part of the job. We cut out every layer, clear the residue and degrease the surfaces, taking care not to scratch the surfaces around it. New sealant only bonds to a clean, dry joint. We work on shrunken worktop sealant, botched or over-sealed joints and leaking tray & enclosure joints, and the jobs we see most are kitchen joints letting water behind the worktop and torn expansion joints.
Being further from a city doesn’t change the work: old material out, joints cleaned and dried, and a fresh, even finish. The journey and access are simply planned in advance.
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.
- Place
- St Boswells (TD6)
- Wider area
- Scottish Borders
- Cover
- A year, on every job
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
For landlords and businesses
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance that we can handle for you.
Failed sealant is one of the commonest items on a check-out report. Several properties can be quoted together.
Towns and villages near St Boswells
What else we do in St Boswells
Why act early in St Boswells
Another bead over the top won’t fix a failed joint. It doesn’t grip the old layer, leaving the leak in place and one more layer to cut out later. Around St Boswells, water from a failed joint in an older stone home can soak into timber and plaster.
Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. The price is agreed before we begin.
Why us?
- Full insurance on every job
- Quality sealants from Arbo and Everbuild
- Domestic, commercial and hotel work
- 12-month guarantee on every job
Read what affects the cost and customer reviews.
When to call us in St Boswells
Silicone only bonds to surfaces that are clean and dry. Residue, moisture or dust left in the joint weaken the bond, and the joint starts to come away early.
People normally contact us after spotting something like this:
- Dark patches showing through the sealant
- Torn expansion joints
- Products that weren’t meant for the joint
- Repeat leaks from the same joint
In and around St Boswells, as anywhere, good remedial sealant starts with a clean, dry, properly prepared joint.
Comparing quotes
- Is VAT in the price?
- What guarantee comes with the work
- How the colour is chosen
- Is the old sealant removed completely?
Can I do it myself?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so tell us about it when you ask for a quote.
Looking after it afterwards
No joint lasts for ever, but care makes a real difference. Our tips:
- Find out why the sealant failed first
- Run the fan after every shower
- Check ceilings under showers for marks
- Keep movement joints clear of mortar and paint
Clean gently: no scraping, scouring pads or harsh chemicals.
Warning signs: peeling layers, mould showing through the bead, leaks after showering or cracks in a movement joint. Any of them means it’s time for remedial work.
When something else is needed
Honest advice matters more to us than a booking, so here’s what new sealant will not do:
- Movement from fittings that are not supported
- Sealant in an older building that needs testing for asbestos first
- A tray or bath that’s cracked
Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we’ll tell you honestly.
Surfaces we seal
- Expansion joints
- Botched or over-sealed joints
- Mouldy bath & shower sealant
- Shrunken worktop sealant
- Failed movement joints
- Leaking tray & enclosure joints
St Boswells questions
Do you cover St Boswells for remedial sealant?
Yes. Our work covers the whole of Scotland, and St Boswells is part of that. You can email us at info@mrmastic.co.uk and let us know what needs doing, and we will give you a clear price.
Is there a guarantee on remedial sealant in St Boswells?
Every job comes with our one-year guarantee, wherever it is. We’re fully insured, and an ARBOMaster approved applicator.
Will you leave a mess?
We keep the work tidy. Nearby surfaces are protected, and we clear up when we are done.
Can you remove sealant that is been put over old sealant?
Yes. We cut out all the layers and clean off the film, before resealing with a single bead.
What do you need from me for a quote?
A short description and the location, with pictures by email if possible. We’ll ask anything else we need to know.
Can you strip sealant from an acrylic tray safely?
Yes, with care. We cut and lift the old sealant with tools suited to the surface, and the residue is cleaned away. Any existing damage is pointed out before any work starts.
Can you quote for more than one area?
Yes. Several rooms, windows or areas can go on one quote.
How long will it take to strip and reseal the joint?
It takes a few hours for most joints, depending on how much old sealant has to come out. You will know the timing when we quote.
What remedial sealant looks like in St Boswells
Scottish Water supplies are generally soft, so limescale is less of a problem than in hard-water areas. But mould still grows into sealant and grout in a room that doesn’t dry out. Private landlords in Scotland must be registered and 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.
For an older house near a landmark such as St Boswells Church, bathrooms in older houses have often been refitted more than once, with sealant laid over sealant.
St Boswells is about 7 miles south-east of Galashiels, in the Scottish Borders. From the centre of St Boswells to the outskirts, remedial sealant is available for homes and businesses alike, from flats and houses to offices and hotels. 89 places in the Scottish Borders are on our list, from the larger towns to small villages. Our Edinburgh page covers work nearby.
We work across the TD6 postcode area for remedial sealant. Streets in the area include Main Street, Southfield and Weirgate Avenue, all of which we cover. Being close to the A699, St Boswells is easy for our applicators to reach. Nearby, we also carry out remedial sealant in Greycrook (1 mile south-east), Maxton (1 mile south-east), Newtown St Boswells (1 mile west), Bowden (3 miles west) and Newstead (3 miles north-west). We also work in nearby towns such as Galashiels (7 miles north-west), Hawick (12 miles south-west), Kelso (8 miles east), Selkirk (8 miles west), Jedburgh (7 miles south-east) and Wilton (12 miles south-west).
Near you in St Boswells
Other landmarks nearby include Commendators House Museum (3.6 miles north-west) and Castle Holydean (3.7 miles west). Green spaces nearby include Eildon Hill North and Bemersyde Moss.