Best HVAC companies in Stamford, CT

The highest-scoring HVAC company in and near Stamford is JNR Plumbing LLC (score 85, 4.9 stars from 1,031 Google reviews). 1 company meets the 5 Star standard within about 16 miles.

Last updated Oct 1, 2026How we rank
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    JNR Plumbing LLC

    4.9 · 1,031 Google reviewsStamford, CT17 years in business

    JNR Plumbing LLC serves residential and commercial customers in Stamford and nearby Connecticut communities. The company has operated since 2009 and provides plumbing installations and repairs, pipe repair and replace…

    InsuredBondedEmergency serviceFinancing available
    85SCORE

We list only companies that clear our published bar, so this area is still filling in. As more HVAC companies near Stamford qualify, they'll appear here automatically.

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HVAC companies in Stamford: quick answers

Who is the highest-rated HVAC company in Stamford, CT?

JNR Plumbing LLC has the highest 5 Star Score among HVAC companies in and near Stamford: 85 out of 100, with a 4.9 star Google rating from 1,031 reviews.

How many 5 Star HVAC companies serve Stamford?

1 HVAC company meets our standard within about 16 miles of Stamford: at least a 4.5 star rating, 20 or more reviews and a score of 60 or higher. The top 1 have 1,031 Google reviews between them, averaging 4.90 stars.

How are these HVAC companies ranked?

By 5 Star Score: rating quality adjusted for review count (45 points), review volume (25), review recency (15), years in business (10) and license verification (5). Businesses cannot pay to change their score.

HVAC companies near Stamford

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Ratings and review counts come from each company's public Google listing and are re-checked monthly. 5 Star Home Service Pros is independent; companies cannot pay for placement.