Highland · Scotland
External Mastic in Newtonmore
External mastic across Newtonmore and nearby, with every bit of old sealant taken out first and a 12-month guarantee.
- Damp patches traced to an open external joint
- Rigid filler in a joint that should flex
- Failed seals between different materials
Newtonmore questions
I let a flat near Newtonmore station. Can you help?
Yes. We work for landlords and agents as well as homeowners. Just send an email to info@mrmastic.co.uk with the address and what needs doing, and we’ll give you a clear quote.
Can you do external mastic in Newtonmore?
Yes, Newtonmore is within the area we cover. We work across all of Scotland. You can drop us a line at info@mrmastic.co.uk and tell us what needs doing, and we will give you a clear quote.
Can I do it myself?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. If it doesn’t work out, we can redo it.
Are you insured?
Yes, we’re fully insured for domestic and commercial work.
What does external mastic cost?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
Are you an approved applicator?
Yes. Mr Mastic is an ARBOMaster approved applicator.
What do you put in the joint?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we’ll tell you what we’re using.
Should I point up the gap in my brickwork?
No. Cement or mortar can’t stretch and the joint fails. If it has already been filled, we can usually cut it out and reseal it.
External mastic in Newtonmore
Ground-floor and low-level joints are straightforward to reach. Where joints are higher up, tell us about the building when you get in touch and we’ll confirm what access is needed. We work on render & cladding joints, copings & trims and façade panels, and the jobs we see most are failed sealant between panels on a façade and joints with sealant missing in places.
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.
Whatever the size of the job, it’s backed by our 12-month guarantee.
- Location
- Newtonmore (PH20)
- Wider area
- Highland
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Landlord and commercial work in Newtonmore
For anyone letting property in or around Newtonmore, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs, and photos by email help.
Landlords and letting agents in Newtonmore can book us as well as householders. Sealant work between tenants is a simple way to keep a property in good order.
Surface by surface
Brickwork movement joints
Brick walls have vertical movement joints to absorb expansion. We reseal them with a low-modulus sealant over backing rod coloured to suit the wall.
Concrete and blockwork
Concrete faces can be dusty and porous, so cleaning and priming matter. We prime where the sealant needs it before sealing.
DIY versus a professional finish
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Looking after it afterwards
A little care helps the new joints last. Our advice:
- Act on the first splits you see
- Ask before painting over external sealant
- Never let anyone fill a movement joint with mortar
- Walk round the building once a year and look at the joints
Don’t let soil, plants or ivy build up against the new joints. Anything that holds water against the joint wears it out sooner.
Small splits are the time to act. Then it’s a straightforward cut-out and reseal with no damage behind it to deal with.
How we quote for external mastic
Some jobs are bigger than they look, and some smaller. The main factors:
- When we can work, for business premises
- How easy the joints are to reach
- Whether old sealant or filler has to be cut out
- Mould in or behind the old joints
Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. You will know the price before we begin.
What to tell us for a quote
There’s no need for technical detail. It helps if you can tell us:
- The address or postcode of the job
- How many joints, rooms or windows are involved
- The type of property
- What’s wrong with the joints now
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we’ll talk you through the work and give you a clear quote.
What external mastic looks like in Newtonmore
Newtonmore is in the west of Scotland, which is wetter than the east, so there’s plenty of rain for movement joints and outside wall joints to keep out. Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and failed outside joints work against that.
Rented homes near Newtonmore station change hands often, and split movement joints are easy to miss on a rental until damp shows inside. Around Newtonmore, as everywhere, external mastic is only as good as the preparation behind it.
Newtonmore is about 28 miles south of Inverness, in Highland. Newtonmore gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Our area takes in 253 places across Highland, from the larger towns to small villages. Dundee is on our list too, about 60 miles from Newtonmore.
Our applicators cover all of PH20 for external mastic. If you need external mastic at a property on Station Road, Main Street and Old Glen Road or a nearby road, our applicators can take on the job. You will find Newtonmore on the B9150, which makes it straightforward to reach with everything needed for external mastic. We also cover Kingussie (3 miles north-east), Etteridge (4 miles south), Laggan (7 miles south-west), Gergask (7 miles south-west) and Kincraig (9 miles north-east). If you’re somewhere remote, the job takes a little more planning, so let us know when you get in touch.
Around Newtonmore
There’s a railway station in Newtonmore itself: Newtonmore station. Other landmarks nearby include St Vincent's Hospital (2.9 miles north-east) and Clan Macpherson Museum (less than half a mile south). For a walk, there’s Creag Bheag and Loch an Dabhaich.
What sealant work cannot fix
Some problems need a builder, plumber or other trade rather than us:
- Render that’s blown, hollow or coming away
- Rising or penetrating damp from elsewhere in the wall
- Cracked brickwork or render that needs a builder or plasterer
If in doubt, send an email to info@mrmastic.co.uk and we will say what we think.
Joints and surfaces we work on
- Render & cladding joints
- Façade panels
- Concrete & block
- Brickwork movement joints
- Copings & trims
- Joints between brick and frames
More services for Newtonmore
What happens on the day
At the end, we look at the finished work together and tell you how long to leave it. The work normally takes anything from a few hours to several days, depending on the building, depending on the size of the job. Outdoor work around Newtonmore depends on the weather, as sealant needs a dry surface, so external jobs may need to move if the day turns wet. Indoor work goes ahead whatever the weather.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- The old mastic and anything lodged in the joint is removed.
- We clean both faces of the joint and prime them where the product calls for it.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
Before we arrive
- Clear items away from the joints we’re working on
- Mention any parking rules near the property
- Let us know if you’ve seen damp or leaks
How to get a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and add pictures by email if you can.