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Dunn Heating and Air Conditioning logoDunn Heating and Air Conditioning

Waterloo, ON
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Emergency ServiceResponds to Reviews
Serving Waterloo & area
ProScore

This score reflects 975 Google reviews.

How is this calculated?
Score updated: Oct 2026

About Dunn Heating and Air Conditioning

AI-generated summary from ProScore data sources

Dunn Heating and Air Conditioning is a plumbing contractor in Waterloo, Ontario. Customers describe the service as professional and courteous, with technicians who are thorough in diagnosis and responsive to scheduling requests. The business has wheelchair-accessible entrance and washroom facilities.

  • Dunn Heating and Air Conditioning: ProScore 78, tied 2nd of 14 scored plumbers in Waterloo.
  • 975 Google reviews (4.8 stars; median 44) for Dunn Heating and Air Conditioning, ahead of 17 of 17 plumbers.
Rated on 1 independent platformProScore found ratings for this business on 1 independent review platform. Each one is listed in "Ratings Across Platforms" below.

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What Customers Say

AI analysis of 9 Google reviews

Top Strengths

Exceptional technical expertise - Dave B and technicians consistently identified problems easily and performed thorough inspections/repairs
Professional and courteous service - described as 'professional, courteous, skilled' with friendly, helpful demeanor throughout projects
Prompt response and scheduling flexibility - came early on Saturday, quick quote responses, and completed major jobs in under 3 hours
thorough inspection/diagnosisknowledgeable techniciansprofessional servicefriendly and helpfulprompt/timely response

Ratings Across Platforms

Aggregated from independent sources. Only ProScore shows all.

1 source · 975 reviews
GoogleListing found
Google Business Profile reviews
4.8/5
975 reviews

No rating yet on Review platform C. Not found on 2 other platforms ProScore checks (Review platform B, BBB).

ProScore aggregates Google, the BBB and other major review platforms. Some sources are not named publicly.

How sources are weighted: ProScore methodology.

Things to Know

Trusted Level

Scores in ProScore’s Trusted tier — strong, consistent signals across the sources ProScore checks.

Highly Rated

Consistently rated 4.8 stars across 975 Google reviews.

Open 24 Hours

Every posted day shows 24-hour availability.

What Reviews Highlight

Reviews mention: thorough inspection/diagnosis, knowledgeable technicians, professional service.

Google Review Breakdown

975 total
5
886
4
30
3
6
2
11
1
42

Featured Review

From Google

“

I have just had another very positive experience with Dunn Heating and Air Conditioning. I am thankful that I have purchased this company's annual service package for my furnace and air conditioner because the service I receive from Dunn's technicians is exemplary. Dave, who serviced my 13-year old air conditioning system today, did a remarkably thorough job of cleaning and then servicing the unit. In thirteen years, he's the first technician who has cleaned my air conditioner, and he taught me

A
Andy Houston
Google Review

Frequently Asked Questions

Is Dunn Heating and Air Conditioning licensed?
Licensing status has not been verified for Dunn Heating and Air Conditioning. Contact them directly to confirm current credentials before hiring.
Does Dunn Heating and Air Conditioning have insurance?
WSIB insurance status is not verified for Dunn Heating and Air Conditioning. Request proof of workplace insurance and liability coverage before hiring.
What is Dunn Heating and Air Conditioning’s rating?
Dunn Heating and Air Conditioning has a ProScore Trust Score of 78/100 (Trusted), calculated from 1 data source including 975 Google reviews.
Where is Dunn Heating and Air Conditioning located?
Dunn Heating and Air Conditioning is a plumber serving Waterloo, Ontario. You can reach them at +1 226-770-5265. View their full profile on ProScore for reviews and credentials.

Business Details

75 Rankin St, Waterloo, ON N2V 2B5
Plumber

Hours

SundayOpen 24 hours

Services Offered

Drain cleaningPipe repairWater heater installationFixture installationEmergency plumbingLeak detection

Services & Info

Open 24 HoursEmergency Service

Other

LGBTQ+ friendly

Accessibility

Wheelchair accessible seatingWheelchair-accessible entranceWheelchair-accessible washroom

Credentials

Insurance
Not Confirmed
WSIB Coverage
Not Confirmed

Credentials are as reported by contractors and public sources — verify each with the contractor and the issuing authority before hiring.Check it yourself: WSIB clearance · Skilled Trades Ontario Public Register

Data Transparency

Sources
Google
Score computed
October 13, 2026

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Checked by ProScore

What is the ProScore?

One score from 0 to 100 across every review platform and public registry ProScore checks. How the ProScore works

≥81
Elite
≥70
Trusted
≥54
Good
≥30
Basic
<30
Caution
—
Not yet rated

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Compare Plumbers in Waterloo

See how Dunn Heating and Air Conditioning ranks against other plumbers in Waterloo on ProScore.

A ProScore is informational only — not a guarantee, endorsement, or recommendation — and the data behind it may be incomplete or out of date. Before hiring, independently verify all credentials, including licences, insurance (including WSIB) and references, directly with the contractor and the issuing authority. Full data notice. Something wrong? Let us know.