Moray · Scotland
Rathven External Mastic
Sealing brickwork movement joints, render, cladding and façade joints for householders, landlords and businesses in Rathven. Fully insured, ARBOMaster approved and guaranteed for a year.
- Rain getting behind render or cladding at a joint
- Failed seals between different materials
- Sealant that has lost its bond to the brick or render
What the job involves on each surface
Concrete and blockwork
Concrete and block walls shrink as they dry and move with temperature. We reseal their joints with backing rod and a flexible product.
Joints between dissimilar materials
Wherever two materials meet, they move differently. A flexible sealant bridges the two so the movement is taken up.
External mastic in Rathven
Joints in render and cladding are easy to overlook until a damp patch appears. We inspect them, agree which need doing and reseal with a weatherproof, flexible sealant. If you have rigid filler in a joint that should flex and brick movement joints where the sealant has split, we can put it right, whatever the surface.
Stone walls need a stone-friendly sealant, as acetoxy products can attack some stone. On newer homes, the movement joints and roofline trims are what need watching.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Location
- Rathven (AB56)
- Wider area
- Moray
- Guarantee
- 12 months on all our work
- Quote
- A clear price before work begins
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Why deal with it now?
Done well, a resealed joint is a neat, straight line that suits the wall. A rushed bead with no backing looks untidy and doesn’t last, so it pays to do it properly once. Around Rathven, water from a failed joint in an older stone home can soak into timber and plaster.
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you’re unsure, email us at info@mrmastic.co.uk for an honest opinion and a quote.
Why us?
- A choice of colours where the product allows
- We leave the area clean and tidy
- Trusted Arbo and Everbuild sealants
- Experience in homes, commercial sites and hotels
Take a look at how sealant jobs are priced and our reviews.
Looking after it afterwards
After the cure time, these simple habits help:
- Ask before painting over external sealant
- Keep movement joints as flexible joints, not mortar
- Keep soil, plants and ivy away from the joints
- Avoid pressure-washing directly into sealant joints
Don’t paint over the new sealant unless we’ve said the product is paintable. Many exterior sealants are not designed to be painted and spoil the finish.
A joint that has stopped moving pushes the movement elsewhere, generally as cracking in the brickwork or render nearby. Catch it early and you reduce the risk.
What affects the cost of external mastic
There’s no set price list. The quote depends on:
- Which sealant suits the joint
- The old material and how stubborn it is
- How much there is to do
- How easy the joints are to reach
What it costs depends on the size of the job, how much old material has to come out and how easy the joints are to reach. We give a clear quote before any work starts, so you know where you stand.
Helping us quote
Before you ask for a quote, have a think about:
- The rough size of the job
- How we’d reach the joints
- Whether it has been sealed before
- Where the job is, and your postcode
We quote each job on its own, so the first step is telling us about yours. Simply email us at info@mrmastic.co.uk and describe the job.
What else we do in Rathven
How it works
On the day, we start by going over the job with you, so there are no surprises. We protect the surfaces around the joints before any work starts. The work normally takes a few hours to a few days, depending on the length of joint and the access. For a place like Rathven, longer drives are planned in advance. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- First, the joints are inspected and the access agreed.
- Every bit of old sealant and any mortar or debris is cut out.
- Joint faces are cleaned back and primed if the sealant needs it.
- We fit closed-cell backing rod to control the depth.
- The exterior sealant is applied, tooled and checked along its length.
Getting ready for the visit
- Mention if the joints have been sealed before
- Try not to wet indoor joints just before the visit
- Keep children and pets away from the work area
Getting a quote
Need a quote? Please drop us a line at info@mrmastic.co.uk with a few details. You will know what we plan to do, and what it will cost, before any work begins.
Related advice
Outside joints around Rathven
Rathven is within about 2 miles of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on movement joints and outside wall joints, which can dry out and crack sooner where a building faces the weather. Plenty of Scottish homes have harled walls, and joints where harling meets other materials need a sealant that can grip and flex.
In the older streets around St Peter's Church and Old Burial-Ground, old and new materials meet at the roofline and walls, which is where sealant earns its keep. If you look after a building such as Buckie High School, its movement joints, gutters and trims need looking after like any other building’s.
Rathven is about 1 mile east of Buckie, in Moray. Homes, rented property, offices and hotels in Rathven can book us for external mastic, old or new, large or small. The work is guaranteed for a year. Across Moray, we cover 58 places, Rathven among them. We also work in Aberdeen, about 47 miles from Rathven.
Postcode districts we cover here for external mastic: AB56. Close by, we work in Portessie (1 mile north), Ianstown (1 mile west), Buckie (1 mile west), Findochty (2 miles north-east) and Arradoul (2 miles south-west). Within a short drive, we also cover Elgin (14 miles west), Lossiemouth (13 miles west), Keith (9 miles south), Ashgrove (14 miles west), Portknockie (3 miles north-east) and Cullen (4 miles east). Island and remote addresses take a little more planning, so tell us where you are when you ask for a quote.
Local landmarks in Rathven
Well-known places in the area include Findochty Castle (1.3 miles north-east) and Seafield Hospital (1.8 miles west).
What sealant work cannot fix
To be straight with you, there are a few things sealant will not fix:
- Walls that need new movement joints cut into them
- Structural movement, which needs a surveyor or engineer
- Damp that isn’t coming from the joint
If you are not sure, just email us at info@mrmastic.co.uk and we’ll give you a straight answer before you book.
Joints and surfaces we work on
- Brickwork movement joints
- Render & cladding joints
- Concrete & block
- Façade panels
- Joints between brick and frames
- Copings & trims
Your questions about external mastic in Rathven
Is Rathven within the area you cover?
Yes, smaller places are covered as well as towns. We work across all of Scotland. Let us know about access, parking and anything unusual about getting there when you book.
Do you cover Rathven for external mastic?
Yes, Rathven is within the area we cover. We work across all of Scotland. You can send an email to info@mrmastic.co.uk and let us know what needs doing.
How long will you be here?
As a guide, most jobs take a few hours for a handful of joints, longer for a whole elevation. Bigger jobs take longer, and we will tell you how long to expect.
Does someone need to be in?
If the work is inside, we need someone to let us in. Once we have agreed the job, you don’t need to watch us work.
How do you reach high-level joints?
It depends on the height and the site. Ground-floor joints are simple; for higher ones, send details and we will confirm the access.
Can a movement joint be filled with mortar?
No, not if it’s a movement joint. Pointing it stops it working, and the wall may crack nearby. A flexible sealant is the right fill.
Can you seal over the old sealant?
No, because it fails. The old sealant always comes out first.
Should I try DIY first?
Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Should I try it myself first?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
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 does not work out, we can still put it right.