Best HVAC companies in Simi Valley, CA

The highest-scoring HVAC company in and near Simi Valley is Most Valuable Plumber (score 68, 4.8 stars from 1,303 Google reviews). 2 companies meet the 5 Star standard within about 16 miles.

Last updated Nov 1, 2026How we rank
  1. 1

    Most Valuable Plumber

    4.8 · 1,303 Google reviewsChatsworth, CA
    68SCORE
  2. 2

    TOP AC Inc LA Air Conditioning Contractors

    4.8 · 138 Google reviewsCanoga Park, CA
    61SCORE

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

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HVAC companies in Simi Valley: quick answers

Who is the highest-rated HVAC company in Simi Valley, CA?

Most Valuable Plumber has the highest 5 Star Score among HVAC companies in and near Simi Valley: 68 out of 100, with a 4.8 star Google rating from 1,303 reviews.

How many 5 Star HVAC companies serve Simi Valley?

2 HVAC companies meet our standard within about 16 miles of Simi Valley: at least a 4.5 star rating, 20 or more reviews and a score of 60 or higher. The top 2 have 1,441 Google reviews between them, averaging 4.80 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.

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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.