Edinburgh · Scotland
Floor Joint Sealing in Trinity
Floor joint sealing for Trinity, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Gaps opening between the floor and skirting
- Perimeter joints in tiled floors filled with grout
- Worn sealant at door thresholds
Different surfaces, different methods
Thresholds
A threshold is where floors and frames meet. A flexible sealant suits both floor finishes.
Wet room and bathroom floors
In a wet room, the floor-to-wall joint is a key line of defence. We reseal it with a flexible silicone suited to wet areas.
Floor joint sealing for homes and businesses in Trinity
Tiled floors can crack along the grout when there’s no room for movement. We can turn a line of grout into a movement joint by replacing it with flexible sealant. We work on concrete floor joints, thresholds and commercial floors, and common reasons people get in touch are open joints that fill with dirt and concrete floor joints that have broken down.
Older tenement flats normally have timber floors on joists, so skirting joints open and close through the year. In Trinity, a flexible sealant suits those joints better than filler.
There’s a 12-month guarantee on every job.
- Where
- Trinity (EH5, EH6, EH3)
- Wider area
- Edinburgh
- Guarantee
- 12 months on all our work
- Quote
- A clear price before work begins
- info@mrmastic.co.uk
- Updated
- 26 October 2026
What we are called out for in Trinity
Floors and walls move a little with the seasons. Heating dries timber and opens gaps along the skirting.
People generally contact us when they notice something like this:
- Cracked grout where a tiled floor needs a movement joint
- Threshold joints that have opened or worn
- Skirting caulk that keeps splitting
- Perimeter joints in tiled floors filled with grout
Letting a property close to Edinburgh Waverley station? Then gaps at skirtings and thresholds are worth sealing between tenancies.
Questions to ask before you book
- Whether they seal over old material or remove it
- How the joint is cleaned and prepared
- Which sealant they’ll use, and why
- What guarantee comes with the work
What affects the quote in Trinity
For a quick quote, just ask. What matters most is:
- Whether old sealant or filler has to be cut out
- The number and length of the joints
- The type of sealant required
- Whether the work is at height
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
What we need to know
Before you ask for a quote, have a think about:
- If it’s domestic, commercial or a hotel
- Whether it has been sealed before
- Access, such as stairs, a lift or height
- What’s wrong with the joints now
Want a quote for floor joint sealing? Please drop us a line at info@mrmastic.co.uk and tell us about the job. We’ll explain what we’d do and give you a clear price before any work starts.
The process
Every visit runs the same way: we check the joints, protect the area around them, do the work and clear up. Most jobs take a few hours for most rooms, longer for large commercial floors. Many homes in Scotland’s cities are tenement flats, reached through a shared close and up a common stair. For a job in Trinity, tell us the floor, how the door entry system works and where we can park nearby.
- 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 vacuumed clean, with backing fitted wherever depth matters.
- We apply a flexible sealant, or a floor-joint product on concrete, in a suitable colour.
- We tool the joint neatly and tell you when it can be walked on and cleaned.
Getting ready for the visit
- Let us know about stairs, lifts or work at height
- Tell us about any water getting in
- Tell us about any previous sealing or DIY attempts
How to get a quote
Asking for a quote is easy: let us know what needs doing and where and its rough size. Photos by email help us understand the job, and we’ll come back to you with a quote.
Read more
When something else is needed
We’d rather tell you now than do work that won’t last, so these are the limits:
- Tiles that have lifted or broken
- Subfloor problems that need a flooring contractor
- Damaged concrete that needs breaking out and repairing
If in doubt, send an email to info@mrmastic.co.uk and we will say what we think before you book.
What we seal
- Commercial floors
- Tiled floors
- Skirting boards
- Concrete floor joints
- Wet room & bathroom floors
- Thresholds
DIY versus a professional finish
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.
A DIY attempt does not rule out a professional job. We cut it out and start again.
Nearby places to Trinity
Other services in Trinity
Common questions in Trinity
What guarantee comes with floor joint sealing in Trinity?
All our work, in Trinity and everywhere else, comes with a 12-month guarantee. We’re fully insured, and an ARBOMaster approved applicator.
Do you cover Trinity for floor joint sealing?
Yes. We work across all of Scotland, and Trinity is part of that. Just drop us a line at info@mrmastic.co.uk with a few details of the job.
How long will you be here?
A typical job takes a morning or an afternoon for most homes. We’ll confirm how long when we quote.
Is it worth trying 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 does not work out, we can redo it.
Why has a gap opened under my skirting?
Movement from drying timber and settling floors pulls the skirting and floor apart. Rigid fillers split, so we use a flexible sealant.
My floor grout keeps cracking in a line. Can you help?
Often, yes. Where a floor needs one, we rake out grout along the right line and replace it with flexible sealant coloured to suit. Loose or cracked tiles need a tiler first.
Can you reseal concrete floor joints in an industrial unit?
Yes. Old filler is cleaned out and the joint resealed with a floor-joint product. Let us know about the traffic and we will quote.
What sealant do you use?
Products from Arbo and Everbuild, among others, picked for each joint. We will tell you what we are using and why.
Work for landlords, hotels and businesses
Housing providers, facilities teams and property managers book us too in Trinity and across Edinburgh. Several sites can be quoted together.
For anyone letting property in or around Trinity, several properties can go on one quote. Just tell us the addresses and what each one needs, and photos by email help.
What floor joint sealing looks like in Trinity
Many new homes in Scotland are timber-framed, so skirting and sealant joints can open up as the building settles. Across Edinburgh, floors range from older suspended timber floors to concrete slabs in newer homes and commercial units, and each moves in its own way. The joint at the skirting or threshold has to allow for that.
For site and facilities teams at buildings such as Trinity Academy, floor and threshold joints in busy corridors wear quickly and are best resealed early. If you look after a church, hall or community building such as Newhaven Parish Church, floor and skirting joints in halls and kitchens wear like any others.
Trinity is about 2 miles north of Edinburgh, in Edinburgh. Across the EH5 area, we can carry out floor joint sealing at your property. 175 places in Edinburgh are on our list, from the larger towns to small villages.
Jobs for floor joint sealing in EH5, EH6 and EH3 is quoted and booked the same way as anywhere else. If you need floor joint sealing at a property on York Road, Park Road and Clark Road or a nearby road, our applicators can take on the job. With the A901 and A903 close by, Trinity is simple for us to get to. Neighbouring places we cover for floor joint sealing include Goldenacre (1 mile south-west), Warriston (1 mile south), Boswall (1 mile west), Inverleith (1 mile south-west) and Granton (1 mile west). Further out, we also cover Sciennes (3 miles south), Merchiston (3 miles south), Newington (3 miles south), Queensferry (8 miles west), Burgh Muir (3 miles south) and South Portobello (4 miles south-east).
Around Trinity
Around Trinity, our work takes us to homes and buildings near Starbank Arms, Drummond Community High School and Starbank Park. The nearest railway station is Edinburgh Waverley station, about 1.8 miles south. Well-known places in the area include Leith Hospital (0.9 miles east) and Newhaven Heritage Museum (less than half a mile north-east). Green spaces nearby include Salisbury Crags and The New Leaf Co-op.