Dundee · Scotland
St Marys Gutter Sealing
Gutter sealing in St Marys from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Garage door frames letting rain in
- Trim joints where the sealant has failed
- Damp on an inside wall under a dripping gutter
DIY sealant or a professional job?
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
Gutter sealing in St Marys
We work across St Marys on leaking gutter joints and roofline trims. Single-storey and low gutters are simple to reach and if it’s higher up, let us know and we will confirm what access is needed. Common call-outs are for quick sealant fixes on gutters that didn’t last and open joints in fascias and soffits, on gutter joints, soffit joints and uPVC fascias.
Stone-built tenements in Scotland’s cities share their roof, gutters and outside walls between every flat in the building. For a tenement in St Marys, repairs to shared parts are usually agreed between the owners, often through a property factor.
All our work is covered by a 12-month guarantee.
- Place
- St Marys (DD3, DD2)
- Wider area
- Dundee
- Cover
- 12 months on all our work
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Why it’s worth doing now in St Marys
Water from a leaking joint hits the same spot every time. Left, it can stain walls and lead to damp, so it’s worth sealing early. Private landlords in St Marys must meet the Repairing Standard, and damp or leaks can fall short of it, so failed sealant is best replaced before it becomes a complaint.
Combining jobs into one visit is normally more efficient than separate visits, so it’s worth mentioning everything you’d like done. We’ll give you a clear price for the lot.
What you get with us
- Homes, businesses and hotels
- Trusted Arbo and Everbuild sealants
- Fully insured
- Colour agreed with you before we start
Take a look at what affects the cost and what customers say.
What happens on the day
You don’t need to clear the whole room or building before we come, only the area right around the joints. We protect the rest, and the work takes an hour or two for a few joints, longer for a full run for a typical job. In a Scottish city, a lot of jobs are in tenement flats, up a common stair from a shared close. For a job in St Marys, tell us the floor, how the door entry system works and where we can park nearby.
- We look at where the water is coming from and check the gutter is not broken or sagging.
- Old sealant and dirt are removed from the joint.
- We make sure the joint is dry before sealing.
- We seal the joint with a sealant made for gutters and outdoor use.
- We look along the gutter and clear debris around the joints.
How to prepare
- Clear the area around the work
- Keep pets and children clear of the area while we work
- For indoor joints, keep the area dry beforehand if you can
How to get a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and add pictures by email if you can.
Related advice
Places near St Marys
Other services in St Marys
When it is not the sealant
To be straight with you, there are a few things sealant won’t fix:
- Water backing up from a blocked pipe
- Problems with the roof covering
- Sagging gutters or broken brackets
If in doubt, drop us a line at info@mrmastic.co.uk and we’ll say what we think before booking.
What we seal
- Soffit joints
- Gutter end caps
- Garage door frames
- Roofline trims
- Gutter joints
- uPVC fascias
Looking after it afterwards
After the cure time, these simple habits help:
- Watch for drips in a downpour
- Check fascia and soffit joints for gaps
- Do not lean ladders against the gutter itself
- Make sure downpipes aren’t blocked
Clear the gutters once or twice a year so water does not sit on the joints. Water left in a gutter tests every joint.
Once roofline sealant splits, water can get behind it. Resealing early protects the boards and the wall below.
What the job involves on each surface
Soffit joints
We choose a sealant colour that suits the soffit, where one is available.
uPVC fascias
We seal fascia joints, not replace the boards. If boards are damaged, we’ll tell you.
FAQs for St Marys
Can you help a landlord with a rental near Invergowrie station?
Yes. We work for letting agents and landlords as well as householders. Just send an email to info@mrmastic.co.uk with the address and what needs doing, and we’ll give you a clear quote.
Is gutter sealing in a coastal place like St Marys any different?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. The right product, a clean joint and the right depth all help it cope.
How long before the joint can be used?
Most sealants are touch-dry well before they’re fully cured. We will tell you how long to leave the joint before we leave.
What information do you need?
Just the basics: where it is, what you’ve noticed and how we reach it. After that, simply drop us a line at info@mrmastic.co.uk.
Is it worth trying it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Can new sealant go over the old?
No, because it fails. We remove every bit of old sealant first, so the new sealant bonds properly.
Do the sealants smell?
Sometimes, a little. Any smell clears as the sealant cures.
Is sealant enough for a gutter that has dropped?
Sealing a sagging joint won’t last. The gutter needs refixing by a gutter installer, and we’ll tell you if that is what we find.
St Marys buildings and the weather
St Marys is within about 3 miles of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is hard on gutter, fascia and roofline joints, especially on the side facing the sea. Dundee’s older tenements are sandstone, and the city sits on the Firth of Tay.
Rented homes near Invergowrie station change hands often, and a dripping gutter joint or loose fascia trim is easy to miss until damp shows inside. Historic houses such as Camperdown House, about 1.2 miles south-west, show how far back building around St Marys goes. Managing a site like Lawside Academy? Then movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
St Marys is about 2 miles north-west of Dundee, in Dundee. If you need gutter sealing in St Marys, it’s easy to get a quote: please send an email to info@mrmastic.co.uk. We are based in Crawley and cover Dundee. Our area takes in 50 places across Dundee, large and small.
We cover every part of DD3 and DD2 for gutter sealing. If you need gutter sealing at a property on Troon Road, Troon Avenue and Gullane Road or a nearby road, we can help. Nearby, we also carry out gutter sealing in Ardler (1 mile south), Dryburgh (1 mile south), Camperdown (1 mile south-west), Lochee (1 mile south) and Birkhill (2 miles west). Within a short drive, we also cover Broughty Ferry (6 miles east), Stobswell (3 miles south-east), Monifieth (7 miles east), Barnhill (6 miles east), Pitkerro (3 miles east) and Whitfield (3 miles east). St Marys is one of the larger places we cover in Dundee.
Near you in St Marys
We work in homes and buildings around Cox Branch Library and Balgay Hill. St Marys’s nearest station is Invergowrie station, about 3 miles south-west of the centre. Nearby you will also find Wellgate Centre (2.6 miles south-east) and Strathmartine Castle (1.5 miles north). The countryside around St Marys includes Balgay Hill and Trottick Mill Ponds.
What affects the cost of gutter sealing
Every job gets its own quote. These are the things that affect it:
- The number of rooms or windows
- The product the joint needs
- Whether the work is at height
- How much old sealant there is and how hard it is to remove
The cost depends on the size of the job, how hard the old material is to remove and access to the work. You’ll have a clear quote before any work starts, so you know where you stand.
Asking for a quote
When you contact us, these details help:
- Pictures of the joints, sent by email
- If someone has resealed it before
- If it’s domestic, commercial or a hotel
- What the problem is, such as mould, gaps, leaks or cracking
Getting a quote is simple: let us know what needs doing and where and its rough size. Photos by email help us understand the job.