Aberdeenshire · Scotland
St Combs External Mastic
Sealing brickwork movement joints, render, cladding and façade joints for householders, landlords and businesses in St Combs. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Rain getting behind render or cladding at a joint
- Leaking joints around cladding and façade panels
- Weathered mastic that no longer stretches
Can I do it myself?
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so just mention it when you contact us.
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
External mastic in St Combs
Low-level joints can normally be done from the ground. For joints higher up, give us some details of the building and we will confirm what’s needed to reach them safely. We work on brickwork movement joints, concrete & block and copings & trims, and the jobs we see most are joints with sealant missing in places and hard, crazed mastic that has stopped moving.
External sealant needs dry surfaces, so outdoor work around St Combs is planned around the weather, and longer journeys are planned in advance. Tell us how to reach each wall, gutter and roofline.
Every job comes with our 12-month guarantee, wherever you are in Aberdeenshire.
- Where
- St Combs (AB43)
- Wider area
- Aberdeenshire
- Cover
- One year on every job
- Price
- A clear price before we start
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Common problems we fix in St Combs
Joints sealed without backing rod, or far too deep, rarely last. If the sealant sticks to the back as well as the sides, it can’t stretch and tears as soon as the joint widens.
The problems people usually mention when they call include:
- Moss and dirt in joints with no sealant left
- Joints where the bead has come unstuck
- Rigid filler in a joint that should flex
- Damp patches traced to an open external joint
Homes close to St Combs include some older properties, and the joints between older walls, newer extensions and the roofline need a sealant that can move.
Questions to ask before you book
- Who does the work, and how experienced they are
- What happens if they find a problem under the old sealant
- Is the old sealant removed completely?
- What preparation is included
Landlords, agents and businesses in St Combs
For anyone letting property in or around St Combs, jobs at different addresses can go on one quote. Send us the addresses and the work at each, and pictures by email help.
Failed sealant is one of the commonest items on a check-out report. Several properties can go on one quote.
Places near St Combs
Also in St Combs
How it works
There isn’t much for you to do on the day. Show us the job and we’ll take it from there. The work itself takes a few hours for a handful of joints, longer for a whole elevation from start to finish. For a place like St Combs, longer drives are planned in advance. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- We start by walking round the building and agreeing the joints and the access.
- We cut out the old mastic and rake out anything in the joint.
- Joint faces are cleaned back and primed if the sealant needs it.
- We fit closed-cell backing rod to control the depth.
- We apply the sealant, tool it and check the whole run.
Before we arrive
- Move anything stored near the joints
- Plan for the work area to be out of bounds to pets and children
- Tell us about access, such as stairs, a lift or high-level joints
How to get a quote
We don’t publish a price list, as no two jobs are quite the same. Instead, we send you a clear quote for your job. To get started, email us at info@mrmastic.co.uk.
Read more
Why act early in St Combs
Low-modulus sealants stretch easily, so they put less strain on the joint edges. That protects surfaces like brick, render and concrete. Too stiff a sealant can pull at the edges and break them. Around St Combs, water from a failed joint in an older stone home can soak into timber and plaster.
The cost reflects the work involved, not guesswork. That’s why we ask about the job first and send you a clear quote before work begins.
Why St Combs customers choose us
- Full insurance on every job
- Experience in homes, commercial sites and hotels
- One-year guarantee on every job
- Anti-fungal silicone where joints get wet
What the job involves on each surface
Brickwork movement joints
Brick movement joints are often mistaken for a missing mortar line. If that’s happened, we rake it out and reseal it properly where it can be done safely.
Joints between dissimilar materials
Brick against render, concrete against metal, stone against timber: every change of material is a joint. We seal the joint with a flexible exterior sealant so the movement is taken up.
Walls and rooflines in St Combs
St Combs 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 movement joints and outside wall joints, especially on the side facing the sea. Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and failed outside joints work against that.
Around St Combs, as everywhere, external mastic is only as good as the preparation behind it.
St Combs is about 4 miles south-east of Fraserburgh, in Aberdeenshire. Wherever you are in the AB43 postcode area, we can carry out external mastic at your property. Across Aberdeenshire, we cover 161 places, and St Combs is one of them. Our Aberdeen page covers work nearby (36 miles or so).
Jobs for external mastic in AB43 works the same way as everywhere else we cover. Whether your property is on High Street, West Street and Charles Street or anywhere close by, our applicators can take on the job. Neighbouring places we cover for external mastic include Inverallochy (1 mile north-west), Crimond (4 miles south), Fraserburgh (4 miles north-west), Keyhead (5 miles south) and Broadsea (5 miles north-west). Within a short drive, we also cover Peterhead (11 miles south), Roanheads (11 miles south-east), Clerkhill (12 miles south), Port Henry (12 miles south-east), Mintlaw (10 miles south) and Boddam (14 miles south).
Landmarks near St Combs
A little further out are Inverallochy Castle (0.8 miles west) and Fraserburgh Hospital (4.5 miles north-west). The countryside around St Combs includes Loch of Strathbeg.
What sealant work cannot fix
A few problems are outside what sealant work can do:
- Cracks in the bricks or render themselves, away from the joints
- Render that is blown, hollow or coming away
- Adding movement joints to masonry that has none
If in doubt, email us at info@mrmastic.co.uk and we will say what we think.
Joints and surfaces we work on
- Render & cladding joints
- Copings & trims
- Brickwork movement joints
- Joints between brick and frames
- Concrete & block
- Façade panels
Common questions in St Combs
Does living near the coast affect external mastic in St Combs?
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.
Is St Combs in your area for external mastic?
Yes, St Combs is within the area we cover. Our work covers the whole of Scotland. Just drop us a line at info@mrmastic.co.uk with a few details of the job.
When is the sealant fully cured?
Different products cure at different speeds, so follow the cure time we give you.
Are you an approved applicator?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
Will it make a mess?
Tidy work is part of the job. We protect what’s around the joints.
Do you seal joints where cladding meets other materials?
Yes. Different materials move at different rates, so a flexible sealant is needed where they meet. The sealant is matched to both sides.
Can you match the colour of my brickwork?
We choose a sealant colour to suit the brick, stone or render so the joint blends in. There’s a wide choice of exterior colours.
Is it OK to fill a movement joint with cement?
No. A mortar-filled joint can’t move, so the wall cracks somewhere else instead. It needs a flexible sealant over backing rod.