18 Vetted HVAC Companies in Oshkosh, WI (2026)
Oshkosh's cold snowy winters and humid summers put extra strain on furnaces and air conditioners, raising seasonal repair and tune-up needs. Homeowners seeking the Best HVAC companies in Oshkosh, WI should prioritize licensed contractors who know municipal permitting, ductwork for older houses, and routine maintenance plans.
Quick Picks
Awards based on the same publicly available signals as the Vouched Score, including provider-stated certifications and dealer status. Not independently verified.
Compare top HVAC providers in Oshkosh
| # | Provider | Score | Years | Best for | |
|---|---|---|---|---|---|
| 1 | OOSHKOSH HEATING & AIR, LLC | 77 | 4.8 (145+) | 20+ | ★ Highest Vouched ScoreAC RepairMini-Splits / Ductless |
Editorial: Mini-split systems content is prominent on Oshkosh Heating & Air's site. Grant Schultz lists more than 20 years of experience. The site notes the owner holds master HVAC technician credentials. The website notes financing is available for replacements and major projects. Strengths:
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| 2 | AA&BE Heating and Cooling, LLC | 76 | 4.7 (80+) | Furnace RepairNew System InstallationIndoor Air Quality | |
Editorial: A&BE advertises ductless mini-split installation experience and ductless system service. A&BE lists itself as fully licensed and insured. A&BE notes participation in Wisconsin Focus on Energy rebate programs. A&BE appears first in local search, supported by many Google customer reviews. Strengths:
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| 3 | TThompson Heating and Cooling Services | 76 | 5.0 (25+) | ||
Editorial: Thompson Heating and Cooling Services appears third in local map results. Reviewers flag:
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| 4 | KKurt Zentner & Sons, Inc. | 72 | 5.0 (35+) | 101+ | Emergency / 24-Hour Service |
Editorial: Kurt Zentner & Sons lists Mini-Split Systems as a company specialization. The company notes licensed technicians on staff. Kurt Zentner & Sons reports same-day emergency response on their website. Kurt Zentner & Sons traces roots to 1925, serving Oshkosh for 100+ years. Winters in Oshkosh demand reliable heating and hydronic experience. Strengths:
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| 5 | WWesley Heating & Cooling | 66 | 4.3 (25+) | 75+ | Heat Pumps |
Editorial: AC repair pages reference Lennox product lines and service options. Wesley Heating & Cooling reports 75+ years since founding. The website states 24-hour emergency response for heating or cooling failures. The site notes available tax credits for energy upgrades in the region. Strengths:
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| 6 | AAnderson HVAC LLC | 62 | 4.8 (30+) | 20+ | |
Editorial: Anderson HVAC handles Mitsubishi ductless mini-split service and retrofits. The company notes EPA Section 608 refrigeration certification. Anderson HVAC lists American Standard dealer status on its site. Oshkosh's cold winters make their heat pump and boiler experience relevant to local homeowners. Strengths:
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| 7 | AAndresen Sheet Metal Heating & Cooling | 61 | 5.0 (8) | ||
Editorial: Andresen Sheet Metal handles on-site sheet-metal duct fabrication and HVAC work. The company name lists Heating & Cooling services locally. Oshkosh's cold winters make reliable furnace performance essential regionally. Eight recent Google reviewers describe quick, positive service experiences. Reviewers flag:
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| 8 | GGartman Mechanical Services | 59 | 4.4 (55+) | ||
Editorial: Gartman Mechanical advertises 24-hour emergency service for Oshkosh homes. Manual J load calculations are listed for equipment sizing per their site. Boiler and steam system experience suits Oshkosh's cold winters. Free estimates and engineering support for commercial projects are stated on the website. Strengths:
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| 9 | AAmerican Heating & Air Conditioning | 58 | 5.0 (4) | ||
Editorial: American Heating & Air Conditioning operates from a shop at 1129 Michigan Street. The Oshkosh location means experience with Wisconsin heating-season demands. Four Google reviewer entries document homeowner service experiences. Google Maps lists the business at position 10 in local search results. Reviewers flag:
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| 10 | MMerten Plumbing & Heating Inc. | 57 | 4.6 (10) | ||
Editorial: Merten Plumbing & Heating says five generations of family experience inform their work. The company lists hydronic and radiant-floor heating expertise. Per their site, emergency heating and plumbing service is available for returning customers. Oshkosh winters demand reliable heat, and Merten notes fast weekend responses. Review excerpts praise quick arrivals and clear troubleshooting steps. Strengths:
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| 11 | HHeating & Cooling | — | 3.7 (6) | 20+ | |
Editorial: Heating & Cooling highlights 25+ years servicing Oshkosh homes. Grant Schultz is listed as a licensed master HVAC technician. The site notes mini-split and high-efficiency heat pump work. Financing availability is advertised for larger system projects. Winters in Oshkosh demand reliable heating and the company references furnace replacement expertise. Strengths:
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Typical HVAC costs in Oshkosh, WI (2026)
Last updated
Estimated ranges for Oshkosh, WI. Actual cost varies with home size, equipment, and scope — always request a written quote for your job.
| Service | Typical range |
|---|---|
| AC repair (typical service call) | $150–$640 |
| Furnace repair | $150–$885 |
| Tune-up / annual maintenance visit | $90–$195 |
| Full AC system replacement (3-ton, installed) | $5,400–$12,800 |
| Furnace replacement (installed) | $2,950–$8,350 |
| Heat pump installation | $4,900–$14,300 |
| Mini-split (single-zone, installed) | $2,450–$6,400 |
| Duct cleaning (whole-home) | $345–$790 |
| Duct sealing (Aeroseal or similar) | $1,500–$3,450 |
| Whole-house humidifier (installed) | $395–$2,450 |
| Whole-house dehumidifier (installed) | $1,500–$3,450 |
| Emergency / after-hours service premium | $150–$490 |
See how Oshkosh compares to 90+ US cities: HVAC Cost Index →
Nearby Wisconsin hvac pricing: Appleton · Eau Claire · Fond Du Lac
See broader context: HVAC pricing in Wisconsin · HVAC pricing nationwide
How were these Oshkosh 'HVAC' pros evaluated for safety, speed, and warranty coverage?
This guide evaluated 11 Oshkosh HVAC providers on safety, response speed, equipment, and warranty signals. Key inputs were Google review data, provider-published service claims, and verifiable credentials such as EPA 608 or manufacturer-dealer listings.
- OSHKOSH HEATING & AIR, LLC lists financing and a satisfaction guarantee. Its 4.8/5.0 rating is per Google reviews.
- Anderson HVAC LLC reports EPA 608 certification and an American Standard dealer relationship on its site.
- Kurt Zentner & Sons, Inc. advertises same-day emergency response and shows a 5.0/5.0 Google rating.
- A&BE Heating and Cooling, LLC states 24-hour emergency response and notes state rebate participation.
- Merten Plumbing & Heating Inc. reports 24/7 emergency availability and lists high-efficiency and zoning systems.
Providers were compared using Google review metrics, declared emergency policies, listed certifications, and published warranty or financing claims; provider sites were checked for corroboration.
How do I choose a HVAC Company in Oshkosh?
- Verify licensing and certifications with state or industry registries.
- Compare Google review scores and recent review counts.
- Confirm emergency response windows and any advertised guarantees.
- Request written warranty and financing terms before committing.
- Check manufacturer-dealer status for required equipment warranties.
5 ways Oshkosh weather and older housing stock wreck 'HVAC' systems — and what to watch for
What are the most common HVAC problems in Oshkosh? Cold, snowy winters and humid summers strain systems, while older homes magnify duct leaks and control failures. These conditions lead to frozen condensate lines, premature furnace wear, and reduced cooling capacity during heat and humidity peaks.
- Frozen condensate and blocked drains. Oshkosh's freeze-thaw nights commonly freeze condensate lines on high-efficiency furnaces and air handlers, causing water backups and shutdowns.
- Premature furnace wear. Prolonged cold snaps in Oshkosh push furnaces to run continuously, increasing heat-exchanger stress and component failure risk.
- Coil icing and reduced cooling capacity. Hot, humid Oshkosh summers overload AC systems’ dehumidification, causing evaporator coils to ice and lower cooling output.
- Leaky ductwork in older homes. Aging houses in Oshkosh often have unsealed ducts that lose conditioned air and cause uneven heating or cooling.
- Thermostat and control failures from cycling. Wide temperature swings between Oshkosh nights and days cause rapid on-off cycling, which wears relays and electronic controls sooner than expected.
Oshkosh (pop. 66,373): how seasonality, licensing rules and neighborhood housing age shape 'HVAC' needs
Oshkosh's wide seasonal swings and older housing stock drive heavier annual HVAC use and targeted upgrades. Cold winters increase furnace runtime, while humid summers push cooling and dehumidification capacity needs. Licensing and insurance rules shape which contractors can perform repairs and installs.
Condition: long, cold winters and humid summers increase system runtime and cycling.
Impact: higher heat-exchanger stress, frozen condensate risk, and greater dehumidification demand.
Capability link: evaluated providers list high-efficiency systems and HVAC-brand expertise to reduce runtime and operating costs.
Condition: many homes are older and have leaky or undersized ductwork.
Impact: uneven rooms, heat loss, and higher energy bills without zoning or duct work.
Capability link: several evaluated contractors offer zoning systems and air filtration to improve comfort and airflow efficiency.
Regulatory note: Oshkosh requires business licensing, bonding, and insurance for HVAC work.
Selection tip: look for licensed HVAC contractors who list warranty coverage, insurance, and emergency service availability.
How fast can Oshkosh 'HVAC' contractors respond to emergencies, and what licenses matter in Wisconsin?
- How do I get a quote from these HVAC companies?
- Submit one request on this page and we send it to the vetted HVAC pros in Oshkosh, WI listed here. They send quotes back — no obligation.
- What does HVAC service typically run in Oshkosh, WI?
- AC repair typically runs $150–$640, and mini-split runs $2,450–$6,400 in Oshkosh, Wisconsin. See the HVAC pricing table on this page for the full per-service breakdown.
- How quickly can Oshkosh HVAC contractors typically respond to emergency calls?
- Response times vary; many Oshkosh contractors advertise emergency service availability and aim to respond the same day during business hours. Response depends on call volume, technician availability, and season. Expect longer waits in peak winter or summer demand. Ask a prospective contractor for their current emergency window and any after-hours fee before booking.
- Does Oshkosh require a city business license or bonding for HVAC contractors?
- Yes. Oshkosh requires a business license and bonding for contractors doing HVAC work. Confirm a contractor shows the city business license and proof of bonding before hiring. Contractors should also provide proof of insurance and workers' compensation as part of standard vetting.
- What insurance and workers' compensation documentation should a homeowner request in Oshkosh?
- Request a contractor's liability insurance certificate and workers' compensation proof before work begins. These documents protect the homeowner if property damage or worker injuries occur. Verify the insurer name and policy dates on the certificates and ask the contractor to list the homeowner as additional insured when appropriate.
- When is the busiest season for Oshkosh HVAC companies and how does it affect scheduling?
- Winter and summer are busiest in Oshkosh due to furnace and AC demand. Peak seasons often cause longer lead times for service and installations. Schedule routine maintenance in shoulder seasons and book major replacements early to avoid delays during high-demand months.
- How should homeowners prepare HVAC systems for Oshkosh's winter to avoid emergency breakdowns?
- Have a licensed technician perform a pre-winter tune-up to inspect the heat exchanger, flame sensors, filters, and thermostat. Clear exterior vents and insulate exposed pipes. Regular maintenance reduces surprise failures and improves efficiency. Keep the contractor's emergency number handy if a failure occurs overnight.
- How do I find a mini‑split or heat‑pump specialist in Oshkosh?
- Look for contractors who list mini‑split or heat‑pump installs in their service descriptions and who show manufacturer-dealer credentials. Ask for recent local install references and equipment model numbers. Verify warranty handling and whether the techs are factory-trained for specific makes before scheduling an estimate.
- When should Oshkosh homeowners consider indoor air quality or duct cleaning services?
- Consider IAQ or duct cleaning when occupants have persistent allergies, unusual dust levels, or after major renovations. Contractors offering IAQ services typically perform a diagnostic and recommend solutions such as filtration upgrades, ventilators, or targeted duct cleaning. Request a written scope and measurable goals before authorizing work.
- Do homeowners need special permits for major HVAC replacements in Oshkosh?
- Permit requirements depend on work scope; Oshkosh enforces building and trade permits for many HVAC replacements. Contractors should know local permit rules and obtain required permits. Homeowners should ask the contractor whether permits are included in the written estimate and to provide permit documentation after job completion.