Edinburgh · Scotland
Floor Joint Sealing in Comiston
Professional floor joint sealing in and around Comiston, with old sealant always removed completely and a one-year guarantee.
- Gaps between floors and kitchen plinths
- Caulk that has cracked where the floor moves
- Chipped and open joints in warehouse floors
How we handle floor joint sealing in Comiston
Good floor joints come down to the right product and clean, prepared edges. Old caulk, grout or failed sealant comes out first, the joint is cleaned and backed where needed, then the new sealant goes in. We work on commercial floors, concrete floor joints and tiled floors, and people most often call us about caulk that has cracked where the floor moves and chipped and open joints in warehouse floors.
Older tenement flats usually have timber floors on joists, with skirting joints that open and close with the seasons. In Comiston, a flexible sealant suits those joints better than filler.
The work is guaranteed for twelve months. If something isn’t right with it in that time, tell us and we’ll put it right.
- Where
- Comiston (EH10, EH13)
- Wider area
- Edinburgh
- Guarantee
- One year on every job
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Common problems we fix in Comiston
A new floor or screed shrinks and settles as it dries. Gaps at the edges appear in the first year or so.
The most common problems we see are:
- Skirting that has pulled away from the floor
- Open joints around bathroom floor edges
- Caulk that has cracked where the floor moves
- Failed joint filler in concrete floors
If you let a flat or house near Slateford station, gaps at skirtings and thresholds are worth sealing between tenancies.
Comparing quotes
- What the cure time is
- What product goes in the joint
- Whether they’re fully insured
- Who does the work, and how experienced they are
Surface by surface
Concrete floor joints
We clean concrete joints out thoroughly before sealing first. Backing goes in where the depth needs controlling.
Commercial floors
Commercial washrooms and kitchens have floor joints that get wet constantly. We reseal them with a sealant suited to wet areas.
How to look after the new joints
To keep the joints looking good and working properly:
- Walk round the room once a year and look at the edges
- Keep dirt out of the joints
- Get cracks along tile grout lines looked at early
- Do not paint over silicone
Lift furniture rather than sliding it over sealed joints. Dragging can tear the bead especially in the first few days.
Concrete joints damaged by traffic get worse quickly. Early resealing helps keep the joint intact and the floor safer.
Joints and finishes in Comiston homes
Timber frame is common in newer Scottish homes, so skirting and sealant joints can open up as the building settles. Floors around Edinburgh run from suspended timber in older homes to concrete in newer houses and units, and each moves in its own way. The joint at the skirting or threshold has to allow for that.
If you look after a building such as Firrhill High School, floor joints in corridors, halls and entrances take heavy wear and need resealing before the edges break up.
Comiston is about 2 miles south of Edinburgh, in Edinburgh. We carry out floor joint sealing for homes and businesses in Comiston and nearby, as part of our work across Edinburgh. Our Edinburgh coverage runs to 175 places, Comiston among them.
Postcode districts we cover here for floor joint sealing: EH10 and EH13. We cover properties on Braid Road, Camus Avenue and Comiston Road and the roads around them. If you’re just outside Comiston, we cover Oxgangs (1 mile south-west), Greenbank (1 mile north-west), Caiystane (1 mile south), Buckstone (1 mile east) and Colinton Mains (1 mile west). Further out, we also cover Leith (5 miles north), Bonnington (4 miles north), Greenside (3 miles north), Broughton (3 miles north), Bellevue (4 miles north) and Silvermills (3 miles north).
Around Comiston
Typical jobs here are in homes near Army School of Bagpipe Music and Highland Drumming and Harrison Park. The closest station to Comiston is Slateford station, roughly 1.6 miles north-west. A little further out are Cameron Toll Shopping Centre (2.2 miles north-east) and Cockburn Geological Museum (1.8 miles north-east). Green spaces nearby include Duddingston Loch and Craiglockhart Hill.
Leave it or put it right?
Dirt builds up in open joints, and they look untidy. Sealed joints are easier to keep clean. Private landlords in Comiston must meet the Repairing Standard, and damp or leaks can fall short of it, so failed sealant is best replaced before it becomes a complaint.
The cost depends on how much there is to do, how much old material has to come out and access to the work. You will have a clear quote before any work starts.
Why choose Mr Mastic in Comiston
- We’re fully insured
- Every job guaranteed for a year
- Quality sealants from Arbo and Everbuild
- 20+ years of sealant experience
Read what affects the cost or what customers say.
Other services in Comiston
What affects the cost of floor joint sealing
Some jobs are bigger than they look, and some smaller. The main factors:
- How many areas need sealing
- Whether there’s mould to deal with
- Whether old sealant or filler has to be cut out
- The product the joint needs
Rather than a set price list, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Asking for a quote
There’s no need for technical detail. Just tell us:
- Access, such as stairs, a lift or height
- The rough size of the job
- Whether it’s a home or a business
- Whether it has been sealed before
We don’t publish a price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, drop us a line at info@mrmastic.co.uk.
What we do, step by step
On the day, there’s very little for you to do. Point us to the joints and we’ll get on with it. The job generally takes a few hours for most rooms, longer for large commercial floors. In a Scottish city, a lot of jobs are in tenement flats, up a common stair from a shared close. In Comiston, it helps to know the floor, the door entry arrangements and the nearest parking.
- We start by looking at the floor, the gap and the traffic, then choose the product.
- We take out any old caulk, sealant or grout along the line.
- The joint is cleaned, vacuumed and backed where depth needs controlling.
- A flexible sealant, or a floor-joint sealant for concrete, is applied in a colour to suit.
- We tool the joint neatly and tell you when it can be walked on and cleaned.
Preparing for the visit
- Where the joints are inside, avoid wetting them before we arrive
- Let us know about stairs, lifts or work at height
- On commercial sites, let us know about site rules
Get a quote
Want a quote for floor joint sealing? Please drop us a line at info@mrmastic.co.uk with a few details. We will explain what we’d do and send you a clear quote before any work starts.
Related advice
Questions from Comiston
Do you cover Comiston for floor joint sealing?
Yes, Comiston is within the area we cover. Our work covers the whole of Scotland. You can send an email to info@mrmastic.co.uk and let us know what needs doing, and we’ll give you a clear price.
What guarantee comes with floor joint sealing in Comiston?
Every job comes with our one-year guarantee, wherever it is. We are also fully insured and ARBOMaster approved.
Will you leave a mess?
No. We work neatly, protect the area around the joints and tidy up afterwards.
Is it OK to seal over old sealant?
No. Fresh sealant doesn’t stick to old sealant, and it traps any mould or water underneath. We remove it all first.
Is it worth trying it myself?
That depends on the joint. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.
What do you need from me for a quote?
Just the basics: the address or postcode, what’s wrong and any access issues. Then email us at info@mrmastic.co.uk.
Where are you based?
We’re a Crawley-based firm. We work across South East England, London and Scotland.
How long does floor joint sealing take?
A typical job takes a morning or an afternoon for most homes, including the preparation. Your quote will say how long we expect yours to take.
When something else is needed
We won’t take on work that will not last, so these are the limits:
- Bouncy or failing floorboards
- Water getting under the tiles from elsewhere
- Concrete repairs beyond the joint
If you’re not sure, just drop us a line at info@mrmastic.co.uk and we will give you a straight answer before booking.
What we seal
- Concrete floor joints
- Commercial floors
- Tiled floors
- Skirting boards
- Thresholds
- Wet room & bathroom floors