# MMT Waterproofing

MMT Waterproofing is a hvac contractor in Canada. Rated 5.0/5 from 333 public reviews across 1 review source. This is the MyTrustedTraders public-evidence profile for this contractor, with independent reviews, credentials and registry data from named public sources, no ads, and no paid placement.

4 reviews in the last 12 months.

## Public review evidence (by source)
| Source | Average rating | Reviews |
| --- | --- | --- |
| HomeStars | 5.0/5 | 333 |

Most recent review: 2 months ago.

## What customers consistently praise
_Themes mentioned across this contractor's own public reviews:_
- Professional (mentioned in 36% of reviews we've read)
- Tidy & clean (mentioned in 29% of reviews we've read)

## Often reviewed for
_Job types repeatedly named in this contractor's own public reviews:_
- Basement Waterproofing (4 reviews)
- Waterproofing (3 reviews)
- Building & extensions (2 reviews)

## In customers' own words
_Verbatim quotes from this contractor's public reviews, each attributed to its source:_
> "Mario explained the logistics of my waterproofing project in great detail and he addressed all of my questions and concerns. His team was very efficient and courteous. Great price and great service. I highly recommend this company."
> Source: Anonymous (5.0, via HomeStars)

> "We had a major crack in the foundation in our basement, they did a great job of fixing that from the inside and outside of the house"
> Source: Natasha (5.0, via HomeStars)

> "I am very grateful to Mario and his team. Mario is so pleasant and knowledgeable. I really appreciate his patience in answering my questions again and again without any reluctance because of my poor English. The job needs to remove the interlock step; only MMT Waterproofing would put it back without any extra cost, and even MMT offers one free regrading. I received several quotes, and MMT’s was very reasonable. I'm extremely pleased that I made a great decision, which was to choose MMT to repair my leaking basement. I am more than happy to recommend MMT to others."
> Source: Jennie (5.0, via HomeStars)

## Trades
HVAC contractor, Bricklayer / mason, Building inspector

## What we checked, and when
_What MyTrustedTraders independently checked for this business (verified items only):_
- Review volume: MTT is showing 333 public reviews on this profile. (via MyTrustedTraders public listing)
- Public listing spread: MTT is showing 1 public listing for this trader. (via MyTrustedTraders public listing)
- Business identity: MTT is showing public business identity data for company number T87-5582133 with operating status unknown. (via MyTrustedTraders public listing)
- Current credentials shown: MTT is showing 1 current credential on this profile. (via Public credential evidence)
- Work photos: MTT is showing 3 work photos on this profile. (via MyTrustedTraders public listing)

Full verification checklist: https://ca.mytrustedtraders.com/traders/ca-homestars-mmt-waterproofing-2775205/checks

## Credentials & sources
- Credentials shown: 2 (1 currently verifiable, listed below)
  - City of Toronto Municipal Licensing - Plumbing, Drain & Heating Contractors: the City of Toronto's licensing for plumbing, drain and heating contractors: the municipal licence required to do that work in Toronto
- Corporate registry status: Unknown
- HomeStars marks this listing as HomeStars marks this public profile as a verified listing
- Evidence held from: HomeStars, City of Toronto Municipal Licensing - Plumbing, Drain & Heating Contractors, HomeStars Verified Pro
- Public evidence last checked July 2026

## Before you hire a hvac contractor
_What to check when choosing this kind of trade (general guidance, not a claim about this business):_
- Trade licensing in Canada is set by each province or territory. Electrical, gas and plumbing are licensed trades almost everywhere (for example ESA for electrical and TSSA for gas in Ontario), so check your provincial regulator that the contractor is certified for the work before you hire.
- A construction lien is a real risk: in every province an unpaid subcontractor or supplier can register a lien against your home even if you already paid the main contractor. Hold back the statutory amount (commonly around 10%) and get signed lien waivers as you pay.
- Confirm they cover your area and can actually come out in your timeframe before anything else.
- Read recent reviews for reliability and turning up on time, not only the quality of the work.
- Agree the call-out fee up front, and be wary of large upfront deposits for an emergency job.

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Source: MyTrustedTraders, https://ca.mytrustedtraders.com/traders/ca-homestars-mmt-waterproofing-2775205
Real public evidence only: every figure traces to a named source and is cross-checked. If a source does not carry a field, it is not shown.