600,000+ HVAC reviews: why recency and detail outrank star count

We analyzed 600,000+ Google reviews across 120,000+ HVAC contractor profiles to find out what actually moves a homeowner from search results to a phone call. The average rating in the dataset sits well above 4.5 stars. Star rating by itself is not a differentiator for residential HVAC; it is table stakes. What separates the contractors who keep getting hired from the ones who do not is what shows up underneath the stars.

The star-rating distribution, in one paragraph

The large majority of those reviews are 4 stars or higher. A 4.7 and a 4.9 read identically to a homeowner scrolling Google Maps at 2 AM with a furnace down. The number on the screen is no longer the variable that converts the click into a call.

Half of HVAC reviews say nothing

Nearly half of the reviews in the dataset (49.7%) contain only a star and no text. For a homeowner comparing two contractors, a one-sentence review that says, "Mike arrived on time, found a stuck reversing valve on our heat pump, replaced it the same day, total was $385," is worth ten silent 5-star taps. Specific reviews convert prospects; bare stars are background noise.

The fix is in how the review is requested. "Please leave us a review" produces empty reviews. A targeted question produces a usable one. The HVAC-specific prompts that work in the contractors I see using them through Teal Maker's consulting work are:

• "What did your technician explain that previous contractors did not?"
• "How did the new equipment change what you noticed at home, comfort, noise, or your bill?"
• "Was there anything surprising about the diagnosis or quote?"

The follow-up text is sent within 24-72 hours of the job, after the customer has had time to live with the result. Sent earlier, the review references the visit; sent later, the review references the outcome. Outcome reviews are the ones that close future jobs.

The response gap that costs contractors jobs

The dataset shows owner responses on 44% of 5-star reviews but only about 31% of negative ones (1 to 2 stars). Contractors are thanking happy customers and ignoring unhappy ones. This is exactly backwards for what prospective customers read.

BrightLocal's 2026 Local Consumer Review Survey reports that 97% of consumers read online reviews for local businesses, and 88% would use a business that responds to all reviews, positive and negative.² A thoughtful response to a negative review (acknowledge the issue, explain what went wrong, offer to make it right) demonstrates more about the business to a prospect reading the profile than a hundred unanswered 5-star ratings.

The operational fix is straightforward: a saved owner-response template for the four common patterns (legitimate service mistake, miscommunication on quote, scheduling failure, customer-side issue), each tuned so the owner can paste, customize one sentence, and post within 24 hours. The template removes the friction; the friction is what causes the response gap.

The 10-review threshold

Across the dataset, 84.9% of HVAC businesses have fewer than 10 Google reviews. Crossing 10 puts a shop in the top 15% of HVAC profiles by review volume. Crossing 50 puts a shop in a much smaller group again.

This is good news for any contractor under the threshold. There is no need to compete with the contractor who has 500 reviews from 2022. The credibility curve is steep at the bottom and flat at the top; the first 50 honest reviews move the conversion needle more than the next 500.

One structural factor sits underneath the count: profiles with a linked website carry roughly five times the reviews of profiles without one. It is correlational, not causal, but the website is part of the same operating posture that produces a steady review cadence.

Recency over volume

Consumers weight recent reviews far more heavily than old ones; BrightLocal's Local Consumer Review Survey has repeatedly found that the majority of people consider reviews older than a few months substantially less relevant.² A contractor running a steady cadence of 5 reviews per month will outperform one with 1,000 stale reviews collected three years ago and abandoned.

The implication for a small shop is operational rather than strategic. Build the review request into the closing minutes of every job (a card with a QR code, an SMS template the tech triggers, a follow-up email the office sends). Track the request-to-review conversion rate; expect 15-25% if the prompt is specific and the timing is right.

What to do this week

1. Switch the review prompt from generic to specific. A targeted question generates a usable review; a generic ask generates an empty star.
2. Set a 24-hour response policy on negative reviews. Acknowledge, explain, offer resolution. Save four templates, one per common pattern. The owner edits one sentence per response.
3. Show recent reviews on the website with dates visible. Recency is the signal homeowners read; old reviews without dates read as stale.
4. Target a steady 5+ reviews per month, every month. Velocity beats campaigns. A consistent cadence is what crosses the recency threshold.
5. Stop optimizing the star rating itself. At an industry average well above 4.5, the decimal does not change behavior. Time spent there is time not spent on the four items above.

For the GBP-completeness work that pairs with this (which most HVAC contractors have not done), see the Google Business Profile completeness analysis. For the operational stack that turns a steady review cadence into a sustainable practice, see the Solo Contractor Stack.