Concrete Repair Plus

Scarborough · East York · North York

Concrete Moisture Testing in Toronto

Concrete moisture testing across Toronto and the GTA, before a coating or floor goes down, so it does not fail from vapour pressure you could have measured.

  • WSIB covered
  • $5M liability
  • Written warranty
  • Condition Report

Measure, do not guess

The most common cause of coating failure is invisible.

Moisture moving up through a slab is the quiet killer of coatings and floors. A slab can look bone dry and still push enough vapour to blister an epoxy, lift a coating or ruin a glue-down floor. The only way to know is to measure. Our in-slab relative humidity testing follows the ASTM F2170 method, with ASTM F1869 calcium chloride testing where the flooring specification calls for it.

We test moisture in the slab before recommending a system, so the floor we install is matched to the conditions, and so you are not paying twice when a coating lets go for a reason that was measurable from the start.

A bare basement concrete slab, the surface moisture testing reads before any floor goes down

What we do

Tested first, specified accordingly.

Relative humidity probes

In-slab RH testing, the method that reflects moisture through the slab depth, not just the surface.

Surface moisture readings

Quick surface checks to flag obvious problems and map wetter areas.

Calcium chloride tests

Where a system spec calls for it, to quantify moisture-vapour emission.

Findings in writing

Results documented so your coating choice, and any warranty, is based on data.

System recommendation

A coating or moisture-mitigation approach matched to what the slab is actually doing.

Shot on our jobs

Real work, photographed on site.

A basement slab ground and polished after moisture readings came back
The floor that went down after the readings
A commercial epoxy floor system
Coating systems live or die on vapour numbers

More in the before & after gallery →

How it works

Diagnosed, priced in writing, documented.

  1. 1of 4

    Free assessment

    We look at the actual concrete on site and tell you what is really going on.

  2. 2of 4

    Written scope & price

    What it needs, the materials and warranty terms, on paper before anything starts.

  3. 3of 4

    Our crews do the work

    Employed crews, WSIB and $5M liability issued first.

  4. 4of 4

    Condition Report

    Before/after photos, method, materials, warranty and a care date, yours to keep.

What it costs

An honest price, in writing.

The number depends on the floor area and how many test locations it needs, which is why we scope it before we price. You get a written quote for the testing, and the readings come back in a written report you can hand to your flooring installer.

Where we work

Across the east end & the GTA.

Residential work across Scarborough, East York and North York, with commercial work across the wider GTA.

FAQ

Questions, answered

Because vapour pressure blisters and delaminates coatings, and it is invisible until it fails. Testing turns a guess into a spec, and protects the coating warranty.

Reviews

Five stars, in their words.

Google Reviews

Real reviews from our Google Business Profile, verbatim, verifiable.

David

3 reviews

TodayNew

Huge shout out to this company. Our concrete porch was showing significant wear and tear and we wanted to take action before a total rebuild would have been required. The team at Concrete Repair Plus was extremely patient, came to the house several times to provide a quote and share Graniflex samples, did fantastic work and (bonus) actually refused payment until every last touch up was complete on our newly finished porch (which looks amazing, BTW). We had spoken to other repair companies but did not love that they used "in-house" epoxy porch repair coatings for which we could not find industry info / reviews. Very happy we chose Concrete Repair Plus to refinish our porch with the Graniflex system, a well-known and very well reviewed product. Thank you!

Posted on Google →

Jodi Leigh

6 reviews

4 days agoNew

We redid our porch and the process was seemless from asking for a quote, to scheduling the work, and then the work itself. The workers were friendly and knowledgeable so made the whole process easy for us. Reasonably priced compared to others we compared to and very happy with the final product. Would use them again!

Posted on Google →

James B

Local Guide · 25 reviews · 20 photos

2 weeks agoNew

Our experience with Concrete Repair Plus was nothing short of exceptional. The crew was extremely professional, on-time and neat. Finished product was above expectations. Crew was knowledgeable and kept us informed all the way through the process. Equipment used was best-in-class. We would strongly recommend Concrete Repair Plus to anyone thinking about replacing their garage slab or interested in doing concrete repairs. Pricing was competitive. We would use them again.

Posted on Google →

Natalie F

Local Guide · 27 reviews · 6 photos

A week agoNew

Needed to repair a concrete porch and steps in Vaughan for a detached home, they did a fantastic job prepping and repairing then using the graniflex system. from quote to scheduling everything was easy! All the neighbours were coming over to check it out and say it looks fantastic. Definitely elevated and refreshed the homes curb appeal.

Posted on Google →

Daniel Marinelli

2 reviews · 7 photos

2 weeks agoNew

I contacted Concrete Repair Plus a few weeks ago to tear-out and repour a concrete porch and steps leading up to the front of my house in North York. I contacted them after having an awful experience with a previous concrete contractor who took my deposit and strung me around for over a month, never to return. The level of care and respect I received from Concrete Repair Plus was incredible. After explaining the situation I was in, they sent me Nick and his crew (Jeremy and Milton) and told me I would be in good hands; they were absolutely right. Nick was so respectful; always taking the time to ensure he messaged me exactly when he was coming and what he'd be doing. He had a vision for how this job would look and made sure to include me in the planning of it come time for the formwork. Watching Nick work with Milton and Jeremy was really something. They paid attention to small details: perfect corners on the steps, a gentle slope to drain water away from the house, the first step that meets the driveway was deep enough to be paved around properly, the really nice full broom finish. The form work was done so meticulously, ensuring that the final product would be perfect. Milton and Jeremy always cleaned up at the end of every day, leaving the site looking better than when they arrived. And they were just such nice guys too. What more could I ask for? It's now been a couple of weeks since the job was finished and it looks fantastic. I couldn't be happier with the result! I'm looking forward to contacting them again for any future projects.

Posted on Google →

Glen Johnstone

Local Guide · 13 reviews · 3 photos

Edited 2 days agoNew

Excellent experience with Concrete Repair Plus! They removed the old concrete jewel stone finish from our porch and applied a Graniflex System, and the results look fantastic. The crew was professional, efficient, and paid great attention to detail. They took great care to remove and reinstall the existing railing, protect the surrounding property, and cleaned everything up when the job was finished. I highly recommend Concrete Repair Plus and will definitely call on them again - Scarborough, ON

Posted on Google →

Clive A

9 reviews · 7 photos

a month ago

I recently had Concrete Repair Plus at my residence in Whitby to remove and replace the 66 year old garage floor. It was explained to me that it was not a good idea to grind and epoxy the floor but complete replacement was the way to go. The price was reasonable and the advice was excellent. Staff were on site had the floor removed and repoured the same day. The driveway was covered to prevent concrete spills/splashes. Saw cuts were completed next day. We are now in the process of covering the walls to clean it up. Definitely a five out of five and I would recommend you reach out for a quotation.

Posted on Google →

Richard Fawcett

7 reviews

2 weeks agoNew

We have owned our home for over 40 years and needed to change the garage floor. Last week Concrete Repair Plus removed the old garage floor and replaced it with a new one. The work was done in 2 days. Their team was professional and courteous, and the price was reasonable. We give them 5 stars. R. Fawcett Mississauga July 2026

Posted on Google →

Johnny

4 reviews

a month ago

I had these guys out to my property in Bowmanville to do a complete garage floor replacement, and boy am I glad I did. They did an excellent job on the entire project and after one little hiccup they went WELL above and beyond to make sure I was satisfied with the final product. My polished concrete floor looks amazing. Never realized how much better polished concrete can look versus epoxy. I wouldn't hesitate to use Concrete Repair Plus if I ever have another concrete project again

Posted on Google →

Test the slab before you coat it.

Free on-site assessment. A written scope and price before anything starts. Every job closes with a Condition Report you keep.

WSIB covered · $5M liability · Written warranty · Scarborough, Toronto, ON