Greg Hahn Heating & Air Conditioning
Decatur, IL HVAC
ⓘVouched Score is calculated from publicly available signals: Google rating & review count, Yelp rating, BBB grade, review sentiment, years in business, local search ranking, and provider website content. Not a guarantee of service quality.Embed this score
Review sentiment: 90/100
Overview
Greg Hahn Heating & Air Conditioning states they provide 24/7 emergency HVAC response. The company lists commercial refrigeration and ice-machine services. Greg Hahn notes financing options for larger replacements. Decatur homeowners benefit from local cold-winter experience and furnace service knowledge.
Commercial and residential HVAC services in Decatur, focused on emergency repairs and refrigeration. Emergency Response: 24/7 (per their site). Financing available (per their site). Ductless mini-split and heat pump installation also listed on their services page.
Score breakdown
Editorial Review
50
48%
Google Rating
97
18%
Local Search Rank
25
10%
Review Sentiment
90
16%
Review Volume
32
10%
Composite of public-record signals (BBB, license records), customer review signals (Google, Yelp), and editorial assessment of provider profile. See full methodology →
What customers say
Where they stand on this page:
Highest rating on this page (4.9★ vs page median 4.5★)
Reviewers praise:
punctualityfast repairscommercial refrigeration expertise
Pros & cons
Pros
Services offered (self-reported)
Cons
- Smaller review history (14 Google reviews)
When to choose them
- You need to finance the work
Services
- AC Repair — Diagnostics and repair of central air conditioning systems — refrigerant leaks, capacitor and contactor failures, condenser fan motors, and thermostat issues.
- AC Replacement — Removal and replacement of an aging or failed central A/C — typically condenser, evaporator coil, and refrigerant lines.
- HVAC Installation — Full HVAC system installation including indoor and outdoor equipment, ductwork tie-in, and refrigerant work.
- Emergency HVAC Service — After-hours emergency response for no-cool and no-heat calls.
- Mini-Split Systems — Mini-split installation and service — typically ductless, used for additions or zoned comfort.
Service area
Decatur, ILhome
Contact & hours
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✉️
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Call for hours
Frequently asked questions
What are the pros of Greg Hahn Heating & Air Conditioning?
Based on public records and customer reviews: Emergency response: 24/7; Financing available.
What are the cons of Greg Hahn Heating & Air Conditioning?
Concerns flagged from public records and reviews: Smaller review history (14 Google reviews).
When should I choose Greg Hahn Heating & Air Conditioning?
Choose them if: You need to finance the work.
What is the Vouched Score for Greg Hahn Heating & Air Conditioning?
60/100. Top contributing signals: Google Rating 97/100+ Review Sentiment 90/100, Llm Score 50/100. The score blends public-record signals (BBB, license records), customer review signals (Google, Yelp), and editorial assessment.
How can I contact Greg Hahn Heating & Air Conditioning?
Call Greg Hahn Heating & Air Conditioning at +1-217-428-4545. Address: 4246 W Main St, Decatur, IL 62522, USA.
What does HVAC service typically cost when working with a Decatur, IL provider like Greg Hahn Heating & Air Conditioning?
AC repair typically runs $150–$650, and full AC system replacement runs $5,500–$13,050 in Decatur, Illinois. These are area-wide market estimates, not Greg Hahn Heating & Air Conditioning's quotes. For an exact price, request a written estimate from Greg Hahn Heating & Air Conditioning.
Does Greg Hahn Heating & Air Conditioning do AC Repair in Decatur, IL?
Yes. Greg Hahn Heating & Air Conditioning lists AC Repair among its services and serves Decatur, IL. Call +1-217-428-4545 for a quote.
Does Greg Hahn Heating & Air Conditioning do AC Replacement in Decatur, IL?
Yes. Greg Hahn Heating & Air Conditioning lists AC Replacement among its services and serves Decatur, IL. Call +1-217-428-4545 for a quote.
Does Greg Hahn Heating & Air Conditioning do HVAC Installation in Decatur, IL?
Yes. Greg Hahn Heating & Air Conditioning lists HVAC Installation among its services and serves Decatur, IL. Call +1-217-428-4545 for a quote.
Does Greg Hahn Heating & Air Conditioning do Emergency HVAC Service in Decatur, IL?
Yes. Greg Hahn Heating & Air Conditioning lists Emergency HVAC Service among its services and serves Decatur, IL. Call +1-217-428-4545 for a quote.
Compare with nearby providers
| Provider | Vouched | Years | |
|---|---|---|---|
Greg Hahn Heating & Air Conditioning (this company) |
60/100 | 4.9★ (10+) | — |
Air King Inc. ⭐ Best for New System Installation · ⭐ Best for Mini-Splits / Ductless |
84/100 | 4.8★ (380+) | 31+ |
Design-Air Heating & A/C, LLC ⭐ Best for Geothermal |
69/100 | 4.4★ (50+) | 49+ |
Listed in
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Profile last updated July 24, 2026.