Fife · Scotland
Kelty External Mastic
Sealing brickwork movement joints, render, cladding and façade joints for homes and businesses in Kelty and across Fife. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Movement joints with cracked, split or missing sealant
- Sealant pulling away from one side of the joint
- Old sealant gone brittle and cracked
What affects the cost of external mastic
Call for a quick quote. What matters most is:
- Any working-time requirements on site
- Whether old sealant or filler has to be cut out
- Which sealant suits the joint
- Access and height
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
Helping us quote
When you call or email, it’s useful to know:
- The problem you’ve noticed
- Roughly how big the job is
- Where the property is
- Any access issues, like height or stairs
To get a quote, send an email to info@mrmastic.co.uk with the location and a short description of the problem. We will give you a clear quote before any work starts.
How we handle external mastic in Kelty
As ARBOMaster approved applicators, we choose exterior sealants to suit the joint and the surfaces. Porous or awkward surfaces are primed where the sealant needs it. We work on copings & trims, concrete & block and façade panels, and people most often call us about plants rooting in failed movement joints and joints pointed up with cement by mistake.
External sealant needs dry surfaces, so outdoor work around Kelty is planned around the weather, and longer journeys are planned in advance. Let us know about access to every wall and roofline.
Our work is backed for twelve months.
- Where
- Kelty (KY4)
- Region
- Fife
- Guarantee
- A year, on every job
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Can I do it myself?
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
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.
Outside joints around Kelty
Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and sound outside sealant is part of that. Harled (roughcast) walls are common in Scotland, and where harling meets frames, pipes and other materials, the joint needs a flexible sealant that grips a rough surface.
Rented homes near Cowdenbeath station change hands often, and failed wall and movement joints let damp in, so they’re worth checking between tenancies. For an older house near a landmark such as Parish Church, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Kelty is about 5 miles north-east of Dunfermline, in Fife. Homes, rented property, offices and hotels in Kelty can book us for external mastic, old or new, large or small. Every job comes with our 12-month guarantee. Kelty is one of 133 towns and villages in Fife we cover for external mastic. Our Edinburgh page covers work nearby.
Jobs for external mastic in KY4 is quoted and booked the same way as anywhere else. You’ll find streets such as Main Street, Station Road and Burnside Place, all of which we cover. Other places close to Kelty include Keltybridge (1 mile north), Maryburgh (1 mile north), Lumphinnans (2 miles south-east), Cowdenbeath (2 miles south-east) and Glencraig (2 miles east). Larger places within reach include Dunfermline (5 miles south-west), Kirkcaldy (8 miles east), Glenrothes (9 miles north-east), Leven (15 miles east), Dysart (10 miles east) and Dalgety Bay (7 miles south).
Around Kelty
Kelty’s nearest station is Cowdenbeath station, roughly 2.2 miles south-east of the centre. Nearby you will also find Lochore Castle (2.2 miles north-east) and Queen Margaret Hospital (4.1 miles south-west). For a walk, there’s Benarty Hill and Loch Leven National Nature Reserve.
Looking after it afterwards
A little care helps the new joints last. We recommend:
- Get split or bare joints resealed while the damage is small
- Wash walls gently around the sealant
- Fix overflowing gutters above sealed joints
- Look over the joints every year, ideally after winter
Do not let soil, plants or ivy build up against the new joints. Anything that holds water against the joint wears it out sooner.
Leave a failed movement joint and water keeps getting into the wall. That can lead to damp patches, staining and frost damage, all bigger jobs than a reseal.
Signs you need external mastic in Kelty
UV, rain and frost all age exterior sealant. In time it goes hard, crazes on the surface and stops stretching, so the next time the wall moves, it splits or pulls away.
Keep an eye out for these signs:
- Movement joints filled with mortar instead of sealant
- Weeds or debris growing in open joints
- Water getting into walls through failed joints
- Weathered mastic that no longer stretches
If you look after a building such as Beath High School, larger buildings have long runs of movement joint that eventually need resealing.
Questions to ask before booking
- Whether VAT is included
- Is the old sealant removed completely?
- The length of the guarantee
- What the cure time is
What we can’t put right
Some problems need a builder, plumber or other trade rather than us:
- Cutting new joints into brickwork, which is building work rather than sealant work
- Failed render or damaged cladding panels
- Damp that isn’t coming from the joint
If you’re 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
- Copings & trims
- Render & cladding joints
- Joints between brick and frames
- Façade panels
- Concrete & block
How the visit 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. Outdoor work around Kelty depends on the weather, as sealant needs a dry surface, so an outdoor job can move if the forecast changes. Indoor work goes ahead whatever the weather.
- Each joint is checked and the colour of the new sealant agreed.
- We take out the old sealant until the faces are sound.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- We prime the faces where required.
- We gun in low-modulus sealant and tool it neatly.
Getting ready for the visit
- Try not to wet indoor joints just before the visit
- Clear the area around the work
- Keep pets and children clear of the area while we work
Getting a quote
Getting a quote is simple: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job.
Advice
Nearby places to Kelty
Also in Kelty
Kelty questions
Can you help a landlord with a rental near Cowdenbeath station?
Yes. We work for letting agents and landlords as well as householders. Just email us at info@mrmastic.co.uk with the address and what needs doing, and we’ll give you a clear quote.
Is Kelty in your area for external mastic?
Yes. We work across all of Scotland, and Kelty is part of that. Just email us at info@mrmastic.co.uk with a few details of the job.
What sealant do you use?
We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice, and we’ll explain our choice.
Should I point up the gap in my brickwork?
No, not where the gap is a movement joint. Pointing it stops it working and can lead to cracking. A flexible sealant is the right fill.
Do you use backing rod?
Closed-cell backing rod sets the depth of the sealant and stops it sticking to the back of the joint. Then the sealant bonds to two faces and can move.
Can new sealant go over the old?
No, and we never do. It can look neat for a few weeks, but the new layer lifts away from the old one. The old sealant has to come out completely.
Do you have insurance?
Yes. We are fully insured for every job we do.
Is there a guarantee?
Yes. All our work carries our 12-month guarantee.
Why act early in Kelty
A failed movement joint lets water into the wall. Dealing with it early keeps the repair to the joint, rather than the wall around it. Out of town in Scotland, exposed walls take a lot of weather, and damp in stone or harled walls takes a long time to dry once water gets behind a joint.
Doing several joints on one visit generally makes better use of the time than several visits. We will give you a clear quote for the lot.
Why choose Mr Mastic in Kelty
- Approved under the ARBOMaster scheme
- A 12-month guarantee on all work
- More than 20 years in sealant work
- Sealant colour chosen to suit
Read our cost guide and what customers say.