Scottish Borders · Scotland
St Boswells Gutter Sealing
Gutter and fascia joints in St Boswells need attention? We cut out the old, prepare the joints and apply the right sealant, with a 12-month guarantee.
- Streaks down the brickwork from a leaking joint
- Dripping gutter ends
- Cracked sealant along roofline trims
Work for landlords, hotels and businesses
We work for landlords and letting agents as well as homeowners. Sealant work between tenants keeps a property looking cared for before the next move-in.
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
Gutter sealing in St Boswells, done properly
A lot of gutter leaks come down to one tired joint. The joint is cleaned, dried and resealed with a sealant made for guttering. If the gutter is broken or sagging, we will tell you. If you have old sealant on roofline trims that has split and old gutter sealant that has let go, we can put it right.
Stone walls need a stone-friendly sealant, as acetoxy products can attack some stone. Newer houses need their movement joints and roofline trims kept sound.
We stand behind the work with a one-year guarantee, so you’re covered after we’ve gone.

- Place
- St Boswells (TD6)
- Region
- Scottish Borders
- Guarantee
- 12 months on all our work
- Price
- A clear price before work begins
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Keeping the joints in good condition
Simple care keeps the joints in good condition. Our advice:
- Get leaks sealed before the wet months
- Check the gutters during heavy rain
- Watch the wall under the gutters for staining
- Keep the gutters clear of debris
Check the joints after heavy rain now and then. Drips are easiest to spot while it’s raining.
Leaking gutter joints get worse over time. Water keeps hitting the same part of the wall and that can cause damp inside.
What we do, step by step
There’s no need to move everything out, just the space around the work. We protect the rest, and the job takes anything from an hour or two to a few hours for a typical job. For a place like St Boswells, longer drives are planned in advance. Mention tracks, gates, ferries or anything else about the route.
- We find where the water is coming from and check the gutter is sound.
- The old sealant and dirt are cleaned out of the joint.
- The joint is dried before sealing.
- A gutter sealant is applied to the joint.
- We check the run and clear debris near the joints.
Before we arrive
- Tell us about any water getting in
- Let us know about parking restrictions
- Mention any sign-in or site rules at work premises
Ask for a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will talk you through what we’d do. When it suits you, drop us a line at info@mrmastic.co.uk.
Advice
Why deal with it now?
You do not need new fascias just because the joints have opened. Sealing the joints tidies them up if the boards are sound. Exposed walls in smaller Scottish places take a lot of wind and rain, and damp in stone or harled walls takes a long time to dry once water gets behind a joint.
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.
What you get with us
- A sealant colour to suit the surroundings
- Old sealant always removed completely
- Approved under the ARBOMaster scheme
- Colour agreed with you before any work starts
Take a look at how sealant jobs are priced and what customers say.
Outside joints around St Boswells
Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and sound outside sealant is part of that. Harled (roughcast) walls are common in Scotland, and joints where harling meets other materials need a sealant that can grip and flex.
If you live in an older home near St Boswells Church, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
St Boswells is about 7 miles south-east of Galashiels, in the Scottish Borders. Across the TD6 area, we cover gutter sealing for homes and businesses. 89 places in the Scottish Borders are on our list, from the larger towns to small villages. For nearby work, see our Edinburgh page.
Postcode districts we cover here for gutter sealing: TD6. Whether your property is on Main Street, Southfield and Weirgate Avenue or anywhere close by, our applicators can take on the job. St Boswells is on the A699, which makes it straightforward to reach. Close by, we work 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). Further out, we also cover 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).
Local landmarks in St Boswells
Well-known places in the area include Commendators House Museum (3.6 miles north-west) and Castle Holydean (3.7 miles west). The countryside around St Boswells includes Eildon Hill North and Bemersyde Moss.
Surface by surface
Gutter joints
Joints between gutter lengths are the most common leak point. We clean, dry and reseal them.
Roofline trims
Trims along the roofline are often finished with sealant. When it splits, water can get behind.
When to call us in St Boswells
Water spilling over a blocked gutter is often mistaken for a leak. A blocked downpipe makes water back up, which is why we look before we seal.
Keep an eye out for any of the following:
- Damp patches inside below a leaking gutter
- Stop ends leaking at the end of a run
- Water dripping where gutter sections meet
- Cracked sealant along roofline trims
In and around St Boswells, as anywhere, good gutter sealing starts with a clean, dry, properly prepared joint.
Before booking anyone
- Which sealant they’ll use, and why
- How long the guarantee is
- Is the old sealant removed completely?
- How much experience the applicator has
Common questions in St Boswells
Is St Boswells in your area for gutter sealing?
Yes, St Boswells is within the area we cover. Our work covers the whole of Scotland. Just send an email to info@mrmastic.co.uk with a few details of the job.
Is St Boswells within the area you cover?
Yes, we do. We work across all of Scotland, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Can you fit new guttering?
Replacement is not our trade. If a gutter is broken or sagging, we’ll tell you.
Can you reach high gutters?
Low gutters are simple to reach. If it’s higher up, let us know and we will confirm the access.
When is the sealant fully cured?
That depends on the sealant used, so follow the cure time we give you.
Can I add another job to the visit?
Yes, and it often makes sense. Doing several areas at once is usually more efficient.
Do you take out the old sealant first?
Yes. All of the old material is cut out and the joint cleaned before applying anything new.
Can a leaking gutter joint be sealed?
In most cases, yes. A sagging or cracked gutter needs more than sealant and we’ll say so.
Places near St Boswells
More services for St Boswells
What sealant work can’t fix
To be straight with you, there are a few things sealant will not fix:
- A gutter length that has split
- Leaks from the roof rather than a joint
- Water backing up from a blocked pipe
If you are not sure, just email us at info@mrmastic.co.uk and we’ll give you a straight answer.
Joints and surfaces we work on
- Gutter end caps
- Soffit joints
- Roofline trims
- Garage door frames
- Gutter joints
- uPVC fascias
