11 Best AC Repair Companies in Oshkosh, WI (2026)
High summer humidity and warm lake-effect nights push many home cooling systems to the limit in Oshkosh, Wisconsin, increasing failure risk. Searching for the best ac repair companies in oshkosh wi helps homeowners find licensed AC repair contractors, emergency response, and parts warranties before peak-season delays.
Compare top AC Repair providers in Oshkosh
| # | Provider | Score | Years | Best for | |
|---|---|---|---|---|---|
| 1 | AAuto Authority LLC | 84 | 4.8 (585+) | ★ Highest Vouched ScoreAC Tune-Up & Maintenance | |
Editorial: Auto Authority LLC leads with focused AC repair and diagnostics for cars and trucks. The shop advertises same-day emergency response for cooling breakdowns. Auto Authority LLC notes financing is available for larger repairs. The shop sits near University of Wisconsin Oshkosh, convenient for campus drivers. Strengths:
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| 2 | OOSHKOSH HEATING & AIR, LLC | 76 | 4.8 (145+) | 20+ | |
Editorial: LG Excellence Preferred Contractor status is listed on the company site. Grant Schultz is noted as a Master Mechanical Contractor. The firm reports over 25+ years serving Oshkosh homes and businesses. Oshkosh summers bring high cooling demand, making prompt AC repair important locally. The website advertises financing options for larger repairs or replacements. Strengths:
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| 3 | AA&BE Heating and Cooling, LLC | 71 | 4.7 (80+) | 24/7 Emergency Repair | |
Editorial: A&BE advertises 24-hour emergency response for no-cooling calls in Oshkosh. A&BE states they establish the problem and the cost before starting repairs. A&BE notes Fox Valley summers often hit the 80s and 90s, making timely AC fixes important. A&BE lists Everrest Elite Comfort units and mentions Focus on Energy rebate participation. Strengths:
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| 4 | SServiceMaster Recovery by Restoration Holdings - Oshkosh | 69 | 4.5 (115+) | ||
Editorial: ServiceMaster Recovery by Restoration Holdings - Oshkosh is a local ServiceMaster Recovery location. The Oshkosh office lists restoration and recovery services on its site. Oshkosh summers bring high humidity that stresses residential AC systems. The business is located on Harrison Street near downtown Oshkosh. | |||||
| 5 | KKurt Zentner & Sons, Inc. | 66 | 5.0 (35+) | 101+ | Commercial AC Repair |
Editorial: AC repair and maintenance for central systems and ductless mini-splits is listed on their site. Kurt Zentner & Sons notes licensed technicians across plumbing and HVAC trades. Serving Oshkosh since 1925 ties the shop to local Fox Valley weather and building stock. The website advertises free estimates for residential and commercial projects. Strengths:
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| 6 | TThompson Heating and Cooling Services | 65 | 5.0 (25+) | ||
Editorial: Thompson Heating and Cooling Services lists AC and cooling repair in its business name. The Google profile shows 27 customer reviews. Oshkosh summers can strain older systems with humid heat. Local review volume suggests familiarity with neighborhood HVAC issues. Reviewers flag:
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| 7 | AAnderson HVAC LLC | 62 | 4.8 (30+) | 20+ | Refrigerant Leak Repair |
Editorial: Refrigerant work is highlighted, with EPA Section 608 refrigeration certification listed. Anderson HVAC notes American Standard customer care dealer status. Anderson HVAC lists same-day and 24/7 emergency response for no-cooling calls. The company reports 20+ years of local service in Oshkosh since 2006. Anderson HVAC advertises free estimates and financing options. Strengths:
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| 8 | AAndresen Sheet Metal Heating & Cooling | 61 | 5.0 (8) | ||
Editorial: Andresen Sheet Metal Heating & Cooling lists furnace and heating repair services on its site. Company name indicates on-site sheet-metal fabrication for ductwork and vents. Andresen serves Oshkosh, where cold winters increase combustion-safety importance for furnaces. Google shows a small set of five-star reviews across eight local ratings. Reviewers flag:
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| 9 | GGartman Mechanical Services | 60 | 4.4 (55+) | ||
Editorial: Emergency response: Gartman Mechanical advertises 24-hour emergency service. AC repair: the company lists residential and commercial cooling services. Manual J: the site notes Manual J load calculations for right-sized equipment. Oshkosh summers can strain systems, so prompt on-site diagnosis matters here. Customer testimonials note fast response and quick repairs. Strengths:
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| 10 | WWesley Heating & Cooling | 56 | 4.3 (25+) | 75+ | |
Editorial: Wesley shows ac repair work and diagnostics with routine, service-specific listings. The company traces roots to 75+ years in business. Oshkosh summers need reliable cooling; Wesley notes 24-hour emergency response. Wesley advertises financing options for larger repairs or replacements. Reviews list routine maintenance and same-day service experiences. Strengths:
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| 11 | MMerten Plumbing & Heating Inc. | 56 | 4.6 (10) | ||
Editorial: Merten lists same-day and after-hours emergency response on its site. The company reports five generations of family plumbing experience. The website notes commercial AC repair and light-commercial service capability. Review snippets praise fast emergency arrivals and quick on-site troubleshooting. Oshkosh homeowners face humid summers and need fast cooling fixes. Strengths:
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| 12 | AAmerican Heating & Air Conditioning | 56 | 5.0 (4) | ||
Editorial: American Heating & Air Conditioning lists AC repair and diagnostic services on its profile. Reviewers flag:
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Typical AC Repair 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 service call / diagnostic fee | $70–$150 |
| Capacitor replacement (installed) | $80–$395 |
| Contactor replacement (installed) | $100–$345 |
| Refrigerant recharge (R-410A top-up, all-in) | $150–$690 |
| Refrigerant leak detection + repair | $150–$1,200 |
| Condensate drain line clearing (clog / float-switch trip) | $100–$295 |
| AC compressor replacement (installed, out-of-warranty) | $790–$2,750 |
| Emergency / after-hours service premium | $150–$490 |
Nearby Wisconsin ac repair pricing: Appleton · Eau Claire · Fond Du Lac
See broader context: AC Repair pricing in Wisconsin · AC Repair pricing nationwide
What evaluation checklist reveals dependable AC Repair in Oshkosh?
This guide evaluated 12 Oshkosh AC repair providers using Google Maps review scores and provider-published service pages, published response windows, warranty or financing notes, and provider-stated services. Priority signals were verified response time, review volume, and advertised emergency or financing options.
- Auto Authority LLC posts a same-day response and high review volume, according to Google Maps data.
- Anderson HVAC LLC lists 24/7 emergency response, financing, and free estimates per the provider's published details.
- Kurt Zentner & Sons, Inc. reports free estimates and over 100 years in business on its public profile.
- Merten Plumbing & Heating Inc. states 24/7 emergency availability; Google Maps shows a 4.6/5.0 rating.
- Gartman Mechanical Services advertises Manual J sizing and free estimates for commercial projects on its service pages.
Review score, verified response window, and explicit service specializations were the primary comparators across providers, with financing and free-estimate policies used as secondary tiebreakers.
How do I choose a AC Repair Company in Oshkosh?
- Verify the provider's Google rating and review count.
- Compare stated emergency response windows and same-day availability.
- Confirm warranty, parts, and financing terms directly with the provider.
- Request a written estimate that includes Manual J sizing when replacing equipment.
- Check years in business and any manufacturer-dealer listings.
5 AC failures Oshkosh homeowners see after muggy summers and harsh winters
The most common AC problems in Oshkosh stem from high summer humidity and freeze–thaw winter stress, which strain coils, compressors, and duct seals. Homeowners looking for affordable AC repair services in Oshkosh, WI should watch for moisture-driven corrosion and winter-related refrigerant migration.
- Corroded outdoor coils. Lake-effect humidity and frequent summer dew keep coil surfaces wet, accelerating corrosion and reducing cooling capacity within a season.
- Compressor failure after heavy use. Prolonged muggy nights force compressors to run longer, increasing heat soak and motor wear in Oshkosh systems.
- Clogged condensate drains and mold. High humidity overwhelms drain lines and pans, causing backups and indoor mold growth that impair airflow.
- Refrigerant migration and pressure loss. Cold Oshkosh winters let refrigerant migrate to the compressor, causing low-pressure startups and lost cooling come summer.
- Split-system freeze–thaw damage. Repeated winter freeze and spring thaw cycles crack small fittings and solder joints, producing hidden refrigerant leaks and sudden midseason failures.
Oshkosh, WI seasonal demand and licensing rules that change how you hire AC Repair
High summer humidity and lake-effect nights drive heavier AC runtime in Oshkosh, increasing failures and emergency calls. This seasonal stress makes licensed technicians with emergency dispatch and coil-repair experience more important for reliable, fast AC repair in Oshkosh, Wisconsin.
Local condition: warm, humid summers with frequent lake-effect dew.
Impact: systems run longer and suffer moisture-driven corrosion, clogged drains, and compressor strain.
Provider capability connection: look for evaluated providers who list emergency service availability and high review counts. Many shortlisted companies advertise 24/7 emergency dispatch and fast same-day response windows.
Regulatory connection: Oshkosh requires business licensing, bonding, insurance, and workers' compensation. Choose contractors who show proper licensing and proof of insurance on estimates and invoices.
What Oshkosh, WI homeowners most often ask about AC Repair — quick answers
- How do I get a quote from these AC repair companies?
- Submit one request on this page and we send it to the vetted AC repair pros in Oshkosh, WI listed here. They send quotes back — no obligation.
- What does AC repair service typically run in Oshkosh, WI?
- Emergency / after-hours service premium typically runs $150–$490, and AC service call / diagnostic fee runs $70–$150 in Oshkosh, Wisconsin. See the AC Repair pricing table on this page for the full per-service breakdown.
- Do Oshkosh AC contractors need a city business license and bonding to work here?
- Yes. Oshkosh requires a business license and bonding for contractors. Homeowners should ask for a copy of the contractor's city business license and bond reference before signing. Contractors who show licensing and bonding on estimates reduce paperwork risk and help ensure municipal compliance during inspections.
- Is proof of insurance and workers' compensation required for AC repairs in Oshkosh?
- Yes. Insurance and workers' compensation are required for HVAC contractors in Oshkosh. Request current certificates of insurance and workers' comp coverage on the estimate. Keep these documents with the job file to protect against liability from on-site injuries or accidental damage.
- When is the busiest season for AC repair in Oshkosh, Wisconsin?
- Late May through August is typically busiest due to high humidity and lake-effect nights. Schedule preventive maintenance before peak humidity to avoid long waits. Ask providers about summer dispatch windows and whether they offer pre-season tune-up slots.
- How quickly should a refrigerant leak be addressed in Oshkosh's humid summer climate?
- Address refrigerant leaks promptly to prevent corrosion and loss of cooling capacity. Moist, lake-effect air speeds coil corrosion and condensate issues. Look for technicians who perform a leak test, document findings, and provide an action plan with refrigerant recovery and repair steps.
- How can homeowners spot when a compressor needs replacement rather than repair?
- Persistent hard starts, loud bearing noise, and repeated failures after capacitor or relay replacement often indicate compressor failure. An experienced technician will test locked-rotor amps and assess adjacent component health. Request a written diagnosis explaining why replacement is recommended over repair.
- What electrical checks should technicians perform for capacitor and control failures?
- Technicians should measure run and start capacitor microfarads, inspect contactor and relay operation, and test disconnect and grounding. Proper electrical diagnosis isolates capacitor failures from broader control board or compressor issues. Ask for recorded meter readings on the invoice for transparency.
- How do I know if an evaporator or condenser coil needs replacement after Oshkosh humidity damage?
- Coils that leak, have extensive pitting, or show irreparable fin collapse need replacement. Humidity and lake-effect moisture accelerate corrosion and fouling. A visual inspection plus a pressure-test and airflow measurement will confirm whether cleaning, fin repair, or full coil replacement is necessary.
- When should an Oshkosh homeowner schedule an annual AC tune-up?
- Schedule a tune-up in spring, before high humidity months begin. Early-season service reduces mid-summer emergency calls and helps identify refrigerant loss or condensate drainage problems. Request a checklist-style report that documents filters, refrigerant, electricals, and airflow measurements.