The Carfax for HVAC Bids
You'd never buy a used car without a Carfax report. Ask Woody does the same job for HVAC — an independent, line-by-line analysis of your contractor quotes before you sign.
$39 for 3 bid analyses · No subscription · One-time payment
The Same Idea, For a Different Big Purchase
Carfax exists because buying a used car without independent verification is expensive and risky. HVAC replacement has the same problem — bigger dollar amounts, less consumer knowledge, and the seller holds all the information.
Ask Woody HVAC is not affiliated with Carfax, Inc. The comparison is illustrative — nominative fair use.
Why HVAC Homeowners Need an Independent Check
HVAC system replacement is one of the largest home-maintenance expenses most people ever incur — a full system swap runs anywhere from $8,000 to $18,000, and larger or more complex jobs push north of $25,000. That's the price of a decent used car.
And yet the average homeowner has almost no way to evaluate whether the bid they're looking at is fair. The industry uses opaque terminology (SEER2, AFUE, HSPF2, AHRI certificate numbers), the equipment specs are buried in manufacturer literature, warranty terms vary wildly between brands, and the scope of what's actually included in the price is inconsistent from bid to bid.
The contractor knows all of this. The homeowner knows almost none of it. That's the same information asymmetry that made Carfax a $700 million company — the used-car buyer had no way to verify a vehicle's history, so an independent report closed the gap. Ask Woody does the identical thing for HVAC bids.
More than 30% of homeowners get overcharged or upsold on HVAC every year. That's not because they're careless — it's because nobody was in their corner during the decision.
How Ask Woody Works (Compared to How Carfax Works)
The pattern is the same three-step flow. You buy the report, you get the data, you make a better decision.
Upload Your Bids
Take photos or upload PDFs of the HVAC quotes you've received. Most homeowners have 2-3.
Carfax equivalent: enter the VIN of the used car you're looking at.
Get the Analysis
Woody analyzes each bid line-by-line — equipment specs, warranties, scope, pricing benchmarks, red flags. Delivered in minutes.
Carfax equivalent: instant vehicle history report with accidents, mileage, ownership chain.
Sign the Right One
Woody ranks each bid with an explanation. Take the winning quote to the contractor and sign with confidence.
Carfax equivalent: buy the car, or walk away from the one with a hidden accident.
What Woody Catches That You Wouldn't
Every bid gets checked against the same 40+ point framework a 30-year HVAC pro uses. Here's a sample of what shows up in the report.
AHRI matching
Verifies the outdoor unit + indoor coil + air handler are certified as a matched system. Un-matched systems lose 20-30% efficiency.
Refrigerant charge verification
Flags bids that skip startup pressure/subcool testing — the leading cause of new-install performance loss.
Scope normalization
A $12K bid excluding $2K of code work is really a $14K bid. Woody normalizes so comparisons are apples-to-apples.
SEER2 vs SEER inflation
Contractors sometimes quote higher SEER ratings than the actual AHRI-certified match. Woody catches the discrepancy.
Warranty term red flags
Parts-only vs parts-and-labor, transferable vs non-transferable, prorated vs full — Woody translates the fine print.
Regional pricing benchmarks
Compares your bid to what the same equipment costs in your state, flagging outliers.
Rebate + tax credit eligibility
Identifies IRA-eligible equipment and federal/state rebates the contractor may not have mentioned.
Permit and licensing check
Flags bids that omit permit costs or where the contractor's license number is missing.
The Pricing Story is the Same
Carfax works because it's cheap enough that not buying it feels foolish. Ask Woody follows the same model.
Three HVAC bid analyses for less than one Carfax report. Because you should be checking every bid you receive — not just one.
Frequently Asked Questions
Is there really a Carfax for HVAC systems?+
How is Ask Woody different from just getting three bids and comparing them yourself?+
Is Ask Woody affiliated with Carfax?+
What if I only have one HVAC bid?+
How fast is the analysis?+
What happens after I get the report?+
Go Deeper Before You Sign
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$39 for 3 bid analyses. No subscription. Report delivered in minutes.