Orkney Islands · Scotland
Gutter Sealing in Isbister
Sealing leaking gutter joints, end caps, fascias, soffits and roofline trims for Isbister, backed by a one-year guarantee. Call for a quick quote.
- Earlier gutter repairs that have peeled off
- Internal damp traced to a gutter joint
- Old sealant on roofline trims that has split
About our gutter sealing in Isbister
Our work covers gutter joints and end caps as well as fascias and soffits, along with roofline trims and garage door frames. It’s joint work rather than new guttering. We work on gutter end caps, gutter joints and uPVC fascias, and common reasons people get in touch are trim joints where the sealant has failed and dripping gutter ends.
In and around a place like Isbister, many buildings face open ground and take the full weather. Outside joints on exposed walls work hard, so they need a sealant that moves with the building.
We stand behind the work with a one-year guarantee, so you’re not left on your own once the job is done.

- Location
- Isbister (KW17)
- Region
- Orkney Islands
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Gutter sealing in Isbister: local notes
Isbister is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on gutter, fascia and roofline joints, which can dry out and crack sooner where a building faces the weather. Harled (roughcast) walls are common in Scotland, and joints where harling meets other materials need a sealant that can grip and flex.
Around Isbister, as everywhere, gutter sealing is only as good as the preparation behind it.
Isbister is about 6 miles north-west of Kirkwall, in the Orkney Islands. Wherever you are in the KW17 postcode area, we cover gutter sealing for homes and businesses. Isbister is one of 51 places in the Orkney Islands where we work for gutter sealing.
Every address in KW17 is covered for gutter sealing, from the main roads to the quietest streets. Nearby, we also carry out gutter sealing in Norseman (1 mile west), Gorseness (2 miles north-east), Settiscarth (2 miles west), Tingwall (3 miles north) and Finstown (4 miles south-west). For island and remote addresses, a little more planning is needed, so mention it when you ask for a quote.
Near you in Isbister
Nearby you will also find Langskaill House (3.3 miles north-east). Not far away are Enyas Hill and Birsay moors RSPB Reserve.
What the job involves on each surface
uPVC fascias
Open fascia joints look untidy and can let water in. Sealing them closes the gap.
Gutter joints
Most gutter leaks start at a joint between sections. We clean, dry and reseal them.
Can I do it myself?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
If you are set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
Work for landlords, hotels and businesses
Housing providers, facilities teams and property managers book us too. Several sites can go on one quote, and we are fully insured for the work.
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.
Why act early in Isbister
A dripping gutter joint keeps wetting the same patch of wall. Over time that can stain brickwork, mark render and encourage damp so early sealing is worthwhile. Around Isbister, water from a failed joint in an older stone home can soak into timber and plaster, which is a far bigger job than the sealant.
Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
Why Isbister clients choose us
- Domestic, commercial and hotel work
- Neat joints and a tidy finish
- We agree the colour with you first
- Anti-fungal sanitary silicone in wet areas
Take a look at our cost guide and our reviews.
Isbister questions
Is gutter sealing in a coastal place like Isbister any different?
Near the sea, outside joints face more wind, rain and salt than they would inland, so the choice of sealant and the preparation matter even more. It’s worth checking the walls that face the sea first.
Do you cover smaller places like Isbister?
Yes, smaller places are covered as well as towns. We work across all of Scotland, including the islands, where work is planned around ferry crossings. Let us know about access, parking and anything unusual about getting there when you book.
Can you seal fascia and soffit joints?
Yes, it’s a common job. The gaps are cleaned and sealed neatly.
How do I get a quote for gutter sealing in Isbister?
Every job is different, so each one gets its own quote. To get one, email us at info@mrmastic.co.uk with a short description of the job.
Do you work on high-level gutters?
That depends on the building. Let us know the height and the ground below and we will confirm what’s needed.
When is the sealant fully cured?
It depends on the product and the temperature. Before we leave, we will tell you the cure time.
Can sealant stop a sagging gutter leaking?
Sealing a sagging joint will not last. A gutter installer needs to refix it, and we will tell you if that’s what we find.
Is gutter cleaning part of the job?
We clean the joints we are sealing and clear debris we find nearby. Cleaning the whole run is a different job.
What sealant work cannot fix
Sealant isn’t the answer to every problem, and we will tell you before work begins. It will not solve:
- Downpipes that are blocked or broken
- Cracked, split or warped gutter sections
- Boards that have decayed or split
If in doubt, email us at info@mrmastic.co.uk and we will say what we think before you book.
Surfaces we seal
- Garage door frames
- Gutter end caps
- Gutter joints
- uPVC fascias
- Roofline trims
- Soffit joints
The process
Our applicators work methodically: protect, prepare, seal, tidy. Typically it takes a few hours, depending on the number of joints and the access. Somewhere like Isbister may be a longer drive, and the journey is planned ahead. Mention tracks, gates, ferries or anything else about the route.
- We start by tracing the leak and checking the gutter itself is sound.
- The joint or trim is cleaned out and old sealant removed.
- The joint is dried, because sealant won’t bond to a wet surface.
- An exterior or gutter sealant is applied to the joint.
- We look along the gutter and clear debris around the joints.
Before we arrive
- Mention any tricky access
- Clear the area around the work
- Mention any sign-in or site rules at work premises
Get a quote
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we will explain what’s involved and give you a clear price.
Related advice
Also near Isbister
More services for Isbister
Do you need gutter sealing in Isbister?
Roofline sealant ages in sun and rain. It hardens, shrinks and splits over time.
It’s worth asking for a quote if you see:
- Rain getting in around a garage door
- Wet patches on the wall under a gutter joint
- Old gutter sealant that has let go
- Internal damp traced to a gutter joint
For jobs in and around Isbister, choosing the right material for each joint is as important as a tidy finish.
Questions to ask before you book
- What product goes in the joint
- How the surfaces are prepared before sealing
- How long to leave it before use
- What the quote includes, VAT included or not
