Perth and Kinross · Scotland
Guildtown External Mastic
We cover Guildtown for sealing brickwork movement joints, render, cladding and façade joints. Old sealant removed completely, joints prepared properly.
- Failed seals between different materials
- Panel joints letting water in
- Damp patches traced to an open external joint
Your questions about external mastic in Guildtown
Is there a guarantee on external mastic in Guildtown?
Every job comes with our 12-month guarantee, wherever it is. We’re also fully insured and ARBOMaster approved.
Do you cover Guildtown for external mastic?
Yes. Our work covers the whole of Scotland, and Guildtown is part of that. You can drop us a line at info@mrmastic.co.uk and let us know what needs doing.
Why do you put foam in the joint first?
The foam is closed-cell backing rod. It keeps the sealant at the right depth and bonded to the sides only, which would stop it stretching.
Where are you based?
We are a Crawley-based firm. We work across South East England, London and Scotland.
Can you seal over the old sealant?
No. New silicone won’t bond to old silicone, and it traps any mould or water underneath. We remove it all first.
Is it messy?
We keep the work tidy. We protect what’s around the joints, and we clear up when we’re done.
Why is there a gap in my brick wall?
Most straight vertical gaps in brickwork are movement joints. It gives the wall room to move, and it should be sealed with a flexible sealant.
How do I get a quote for external mastic in Guildtown?
The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote and we’ll talk you through it.
About our external mastic in Guildtown
Failed sealant is cut out, the depth set with closed-cell backing rod, and the joint resealed with a low-modulus sealant made for outside. We pick a colour that sits well with the wall. If you have brick movement joints where the sealant has split and leaking joints around cladding and façade panels, we can help, on joints between brick and frames, render & cladding joints and brickwork movement joints alike.
Older stone buildings need a sealant that suits the stone, not an acetoxy product that can mark or attack it. On newer homes, the movement joints and roofline trims are what need watching.
Whatever the size of the job, you get the same one-year guarantee in Guildtown and across Perth and Kinross.
- Where
- Guildtown (PH2)
- Wider area
- Perth and Kinross
- Guarantee
- A year, on every job
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
What we’re called out for in Guildtown
Some movement joints have been pointed up with mortar, often by someone who didn’t know what it was for. The joint can’t move, so the wall cracks somewhere else instead.
Common reasons people contact us are:
- Cracked joints where brick meets render or frames
- Old sealant gone brittle and cracked
- Sealant that has lost its bond to the brick or render
- Panel joints letting water in
If you live in an older home near Cambusmichael Church, older walls, gutters and the joints where extensions meet them need a flexible sealant.
What to look for in a quote
- How the joint is cleaned and prepared
- How long the guarantee is
- What the quote includes, VAT included or not
- Is the old sealant removed completely?
How the job changes by surface
Render joints
Render is weaker at the surface than brick, so a sealant that stretches easily protects the edges. Priming is done where the sealant calls for it.
Copings and trims
A failed coping joint lets water into the top of the wall. Sealing them early saves the wall below.
DIY sealant or a professional job?
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
A DIY attempt does not rule out a professional job. We cut it out and start again, so tell us about it when you ask for a quote.
Landlords, agents and businesses in Guildtown
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
If you manage several properties in or around Guildtown, several properties can go on one quote. Send us the addresses and the work at each, and photos by email help.
Keeping the joints in good condition
A little care helps the new joints last. We recommend:
- Make sure movement joints aren’t pointed over
- Ask before painting over external sealant
- Check external joints each spring
- Have failed joints looked at early
Give the sealant the cure time we tell you before anything rubs against it. Most exterior sealants skin fast but take longer to cure right through.
Act while the splits are small. Then it’s a straightforward cut-out and reseal.
What external mastic looks like in Guildtown
Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and sound outside sealant is part of that. Plenty of Scottish homes have harled walls, and where harling meets frames, pipes and other materials, the joint needs a flexible sealant that grips a rough surface.
In and around Guildtown, as anywhere, good external mastic starts with a clean, dry, properly prepared joint.
Guildtown is about 5 miles north of Perth, in Perth and Kinross. Guildtown gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. We cover 107 towns and villages across Perth and Kinross. Dundee is on our list too, about 16 miles from Guildtown.
Every address in PH2 is covered for external mastic. Streets in the area include Oakbank Road, Northfield Road and Main Road, all of which we cover. Neighbouring places we cover for external mastic include Stanley (2 miles west), West Tofts (2 miles north-west), Stormontfield (2 miles south-west), Luncarty (3 miles south-west) and Scone (4 miles south). Further out, we also cover Perth (5 miles south), Blairgowrie and Rattray (8 miles north), Letham (6 miles south-west), Alyth (12 miles north-east), Coupar Angus (7 miles north-east) and Oakbank (6 miles south).
What’s near Guildtown
We work in homes and buildings around Stobhall New Library, among other places. Nearby you’ll also find Perth Royal Infirmary (5 miles south) and Inchbervis Castle (0.8 miles north-west). Open spaces near Guildtown include Dunsinane Hill and Lily Loch.
What affects the quote in Guildtown
For a quick quote, just ask. The main things that affect it are:
- The old material and how stubborn it is
- The product the joint needs
- When we can work, for business premises
- The number and length of the joints
Leaving a failed joint normally makes the job bigger, not smaller. If you’re not sure whether it needs doing, send an email to info@mrmastic.co.uk for an honest opinion and a quote.
What to tell us for a quote
There’s no need for technical detail. It helps if you can tell us:
- Pictures of the joints, sent by email
- If it’s domestic, commercial or a hotel
- How many joints, rooms or windows are involved
- The address or postcode of the job
To get a quote, email us at info@mrmastic.co.uk and tell us where the job is and what the problem looks like. You’ll have a clear quote before any work starts.
The process
When we arrive, we start by going over the job with you. We protect the surfaces around the joints before any work starts. The work usually takes anything from a few hours to several days, depending on the building. Somewhere like Guildtown may be a longer drive, and the journey is planned ahead. 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.
- The faces are brushed clean and primed where the product requires it.
- We fit closed-cell backing rod to control the depth.
- The exterior sealant is applied, tooled and checked along its length.
Before we arrive
- Mention any sign-in or site rules at work premises
- Tell us about any water getting in
- For indoor joints, keep the area dry beforehand if you can
Get a quote
Asking for a quote is easy: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job.