Highland · Scotland
Lybster Gutter Sealing
Sealing leaking gutter joints, end caps, fascias, soffits and roofline trims for homes and businesses in Lybster and across Highland. Fully insured, ARBOMaster approved and guaranteed for a year.
- Drips from gutter joints and end caps
- Rain getting in around a garage door
- End caps that drip every time it rains
Looking after it afterwards
A little care helps the new joints last. Our advice:
- Look for streaks or damp on the wall below gutters
- Do not leave a sagging gutter
- Watch for drips in a downpour
- Deal with a drip before winter
Keep downpipes clear, so water can get away. Blockages push water back along the gutter.
A leaking stop end is best sealed before the wet months. A winter of drips can lead to damp patches.
Gutter sealing in Lybster
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’ll tell you. We work on gutter joints, roofline trims and uPVC fascias, and common reasons people get in touch are failed sealant on a garage door frame and end caps that drip every time it rains.
Older stone buildings need a sealant that suits the stone, not an acetoxy product that can mark or attack it. Newer houses need their movement joints and roofline trims kept sound.
All our work comes with a 12-month guarantee.
- Place
- Lybster (KW3)
- Region
- Highland
- Cover
- One year on every job
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026

When it is not the sealant
We won’t take on work that won’t last, so here’s what sealant can’t put right:
- Guttering that needs replacing
- Gutters that have dropped or pulled away
- Problems with the roof covering
If in doubt, drop us a line at info@mrmastic.co.uk and we’ll say what we think before booking.
Where we work in Lybster
- Garage door frames
- Gutter joints
- Roofline trims
- uPVC fascias
- Gutter end caps
- Soffit joints
DIY sealant or a professional job?
A DIY attempt doesn’t rule out a professional job. We cut it out and start again.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
Why deal with it now?
Leaving a leaking end cap can send water down the wall all winter. Resealing it is a quick job before the damage spreads. When the nearest tradesperson is a drive away, it’s tempting to leave a small leak, but water through a failed joint keeps working away until it’s fixed.
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.
Why us?
- Full insurance on every job
- 180+ five-star Google reviews
- Neat joints and a tidy finish
- ARBOMaster approved applicator
Read what affects the cost and customer reviews.
Landlords, agents and businesses in Lybster
Mouldy or split sealant often shows up at the end of a tenancy. Several properties can go on one quote.
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.
Common questions in Lybster
Do you cover Lybster for gutter sealing?
Yes, Lybster 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.
Do you cover smaller places like Lybster?
Yes, we do. We work across all of Scotland, from towns to the smallest places. Longer journeys are simply planned in advance.
Do you do commercial work?
Yes. Hotels, offices and other businesses use us, and we are fully insured.
Where do you work from?
We work from Crawley. Our applicators cover Lybster, along with the rest of our area.
Can I add another job to the visit?
Yes, we can. More than one area can be quoted together.
Will there be a smell?
Some sealants have a smell while they cure, which fades as it sets. Opening a window helps.
Which products do you use?
Products from Arbo and Everbuild, among others, picked for each joint. We will tell you what we’re using and why.
Do I need to be at home?
We need access to the joints, so we’ll agree that with you when we book. For inside work, that normally means someone being in.
How the visit works
There is not much for you to do on the day. Point us to the joints and we will get on with it. The job generally takes anything from an hour or two to a few hours, including the tidy-up. Somewhere like Lybster 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.
- 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
- Tell us about access, such as stairs, a lift or high-level joints
- Clear items away from the joints we are working on
- On commercial sites, let us know about site rules
How to get a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
Related advice
More services for Lybster
Outside joints around Lybster
Lybster is within about 1 mile 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. Harled (roughcast) walls are common in Scotland, and joints where harling meets other materials need a sealant that can grip and flex.
In and around Lybster, as anywhere, good gutter sealing starts with a clean, dry, properly prepared joint. If you live in an older home near St Mary's Church, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Lybster is about 22 miles south-east of Thurso, in Highland. Lybster gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. 253 places in Highland are on our list, large and small.
Every address in KW3 is within our area for gutter sealing. Whether your property is on Main Street, Jeffrey Street and Russell Street or a nearby road, our applicators can take on the job. Neighbouring places we cover for gutter sealing include Dunbeath (6 miles south-west), Balnabruich (7 miles south-west), Thrumster (8 miles north-east), Whiterow (11 miles north-east) and Haster (11 miles north-east). Remote and island addresses need a little more planning, so tell us where you are when you ask for a quote.
Near you in Lybster
A little further out are Swiney Castle (1.4 miles south-west) and Waterlines (less than half a mile south). The countryside around Lybster includes Ben-a-chielt.
What affects the cost of gutter sealing
For a quick quote, just ask. The main things that affect it are:
- Mould in or behind the old joints
- Any working-time requirements on site
- The number of rooms or windows
- Which sealant suits the joint
What you pay reflects the work, not a rough estimate. That’s why we ask about the job first and agree the price before starting.
What to tell us for a quote
There’s no need for technical detail. It helps if you can tell us:
- The rough size of the job
- Whether it’s a home or a business
- How we’d reach the joints
- Where the property is
Asking for a quote is easy: let us know the job and the location. Photos by email help us understand the job, and we’ll take it from there.
