Oncourse Heating, Cooling, Plumbing
Naperville, IL HVAC · #2 of 5 · NATE-certified · 34+ yrs
Oncourse Heating, Cooling, Plumbing as a HVAC provider
Naperville, IL HVAC · #2 of 5 · NATE-certified · 34+ yrs
Oncourse leads with rapid air-conditioning repair and ductless system work across Chicagoland. NATE-certified technicians staff in-house teams and vetted contractors per their site. Founded in 1992, Oncourse lists 30+ years serving DuPage and nearby counties. Naperville's cold winters make their heating and heat-pump response especially relevant locally. Numerous local reviews describe quick onsite diagnostics and repairs.
Full-service HVAC company in Naperville focusing on air-conditioning repair and ductless systems. NATE-certified technicians are listed on their website. The company notes 30+ years serving Chicagoland homeowners since 1992. They advertise free in-home estimates and financing options for larger replacements.
| Signal | Oncourse Heating, Cooling, Plumbing | Naperville avg | Delta |
|---|---|---|---|
| Vouched Score | 91/100 | 86/100 | +5 vs avg |
| Google rating | 5.0★ | 4.9★ | +0.1 vs avg |
| Review volume | 1,815+ | 1,065+ | +750 vs avg |
| Years in business | 34+ | 39+ | -5 vs avg |
- High Google rating (5.0★ across 1,815+ reviews)
- Long-established (34+ years in business)
- NATE-certified technicians
- Emergency response: 24/7
- Financing available
- Free estimates
- Indoor air quality services
- Mini-split system specialist
- Specializes in AC repair
- You need AC repair
- You need indoor air quality work
- You need mini-split installation
- You need same-day or after-hours service
- You need to finance the work
| Provider | Vouched | Years | BBB | Yelp | Our picks | |
|---|---|---|---|---|---|---|
Oncourse Heating, Cooling, Plumbing (this company) |
91/100 | 5.0★ (1,815+) | 34+ | — | — | Free Estimates NATE-Certified Team |
| 80/100 | 4.9★ (390+) | 25+ | — | — | — | |
| 95/100 | 4.9★ (2,165+) | 50+ | — | — | Highest Vouched Score Best NATE-Certified Shop |
|
| 83/100 | 4.8★ (680+) | 41+ | — | — | Best for Furnace Repair |
Company-wide signals
True across every category below.
Oncourse advertises same-day AC repair for urgent breakdowns. The site lists NATE-certified technicians and Carrier dealer status. Oncourse has served Chicagoland for 30+ years. The website lists a dedicated emergency contact number for urgent cooling calls. Naperville's summer heat makes quick cooling restoration especially important.
Choose them for Emergency AC Repair if
- You need same-day AC repair
Oncourse Heating, Cooling, Plumbing lists furnace repair and diagnostics as a core service. NATE-certified technicians are noted on their site. Carrier Authorized Dealer status and Carrier President's Award appear in company materials. Naperville's winter cold makes combustion-safe diagnostics especially important. Oncourse reports 24/7 emergency and same-day availability.
Choose them for Furnace Repair if
- You need no-heat / emergency furnace repair
- You need furnace tune-up & maintenance
Furnace replacement specialist with Carrier Authorized Dealer status, per their site.
Choose them for Furnace Replacement if
- You need same-day furnace replacement
Oncourse lists AC Repair & Diagnostics as a core specialization.
Choose them for AC Repair if
- You need AC tune-up & maintenance
Air purification work is offered with whole-home systems and dehumidifiers listed on the site. Oncourse notes NATE-certified technicians service Chicagoland installs. The company reports free in-home estimates and financing options. Naperville summers and cold winters make humidity control and ventilation relevant here. Customer testimonials mention quick emergency repairs after service calls.
Oncourse leads with ductless mini-split installation and cold-climate Hyper-Heat capability. Oncourse states NATE-certified technicians staff installations and service. Oncourse was founded in 1992 and lists 30+ years serving Chicagoland homeowners. Naperville winters reward cold‑rated systems, and Oncourse notes Hyper‑Heat work for low‑temperature performance. Oncourse shows a large online reviewer base and many service outcomes reported.
Oncourse advertises ducted air-source heat pump installation across Chicagoland. The company notes NATE-certified technicians on staff. Oncourse lists 30+ years operating since 1992. Naperville winters make cold-climate lines important, and Oncourse highlights Hyper-Heat capability. Reviews and site copy note same-day or emergency response availability.
Choose them for Heat Pump Installation if
- You need heat pump replacement
- You need cold-climate heat pump installation
Oncourse advertises full central AC system replacements across Naperville and Chicagoland. NATE-certified technicians are listed on their site. Founded 30+ years ago, Oncourse reports serving the local market since 1992. Their site notes 24/7 emergency and same-day availability for heat-of-summer failures. Website lists free in-home estimates and financing options.
Choose them for AC Replacement if
- You need same-day AC replacement
What customers say
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.
- Mini-Split Systems — Mini-split installation and service — typically ductless, used for additions or zoned comfort.
- Indoor Air Quality — Indoor air-quality work: high-MERV filtration, UV systems, humidifiers/dehumidifiers, and duct sanitization.
- Duct Work — Ductwork inspection, sealing, and replacement — addresses leakage, undersized runs, and uneven room temperatures.
- Emergency HVAC Service — After-hours emergency response for no-cool and no-heat calls.
Service area
Published pricing
Promotions
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$50 OFF Any HVAC Services
As published: $50 OFF Any HVAC Services"…re Financing OUR DEALS Save On Your Service Today $50 OFF Any HVAC Services Request Service Please Mention The Offer When Ca…"
Financing
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Financing available
As published: Financing available"…me up for the marketing email list. Send Request Financing Available Buy today, pay over time Explore Financing OUR DE…"
Estimates
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Free estimates
As published: Free estimates"…assistance whenever unexpected home issues arise. Free in-home estimates Get accurate assessments without financial obliga…"
Guarantees & credentials
- NATE-certified
Sourced from the provider's own website. We surface these as published; we do not independently verify each license or warranty.
Contact & hours
Frequently asked questions
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What does HVAC service typically cost when working with a Naperville, IL provider like Oncourse Heating, Cooling, Plumbing?
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Does Oncourse Heating, Cooling, Plumbing do AC Repair in Naperville, IL?
Does Oncourse Heating, Cooling, Plumbing do AC Replacement in Naperville, IL?
Does Oncourse Heating, Cooling, Plumbing do HVAC Installation in Naperville, IL?
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Profile last updated July 24, 2026.