12 Best Furnace Replacement in Oshkosh, WI (2026) — Vetted
Why Oshkosh’s Winter Demand Makes Furnace Replacement Important
Long, cold winters in Oshkosh drive high demand for reliable heating, so timely furnace replacement prevents midseason outages. Homeowners searching for the best furnace replacement companies in Oshkosh, WI should check licensing and warranty terms. Also look for providers that advertise emergency service during peak months.
What the 12 local listings reveal about specialty, warranties and emergency response
| # | Provider | Score | Years | Best for | |
|---|---|---|---|---|---|
| 1 | OOSHKOSH HEATING & AIR, LLC | 72 | 4.8 (145+) | 20+ | ★ Highest Vouched Score |
Editorial: Specializes in residential furnace replacements using Armstrong and Lennox equipment. Grant Schultz is a licensed master HVAC technician. Has 25+ years serving Oshkosh's cold Wisconsin winters. Offers financing options per their website. Advertises high-efficiency equipment and filtration upgrades. Strengths:
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| 2 | AA&BE Heating and Cooling, LLC | 70 | 4.7 (80+) | High-Efficiency (95%+ AFUE) UpgradesGas Furnace ReplacementSame-Day Replacement | |
Editorial: A&BE lists high-efficiency equipment including Everrest Elite line on its site. A&BE advertises 24-hour emergency response for heating failures. A&BE notes a one-year workmanship guarantee on installations. Oshkosh winters drive heavier furnace use; the company references Focus on Energy rebates. Local Google reviewers mention clear communication after installations. Strengths:
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| 3 | SServiceMaster Recovery by Restoration Holdings - Oshkosh | 67 | 4.5 (115+) | ||
Editorial: ServiceMaster Recovery by Restoration Holdings - Oshkosh operates from a full-service location on Harrison Street. The branch holds a strong local Google presence as the top search result. Oshkosh winters demand careful combustion commissioning for gas furnaces. Review volume indicates steady customer engagement around restoration and remediation work. | |||||
| 4 | KKurt Zentner & Sons, Inc. | 67 | 5.0 (35+) | 101+ | Furnace + AC Changeout |
Editorial: Full-system furnace and AC changeouts are listed as a core specialty on their site. Kurt Zentner & Sons, Inc. notes family ownership since 1925. The company advertises same-day emergency response for heating failures. Licensed technicians are listed across plumbing and HVAC crews. Oshkosh winters make reliable, code-compliant heating critical for local homes. Strengths:
Reviewers praise:
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| 5 | TThompson Heating and Cooling Services | 66 | 5.0 (25+) | ||
Editorial: Thompson Heating and Cooling Services is based on Otter Avenue in central Oshkosh. The business listing shows multiple five-star Google reviews. Oshkosh's cold winters increase the importance of reliable furnace performance. The company maintains a local service address for residential heating calls. Reviewers flag:
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| 6 | CC Sweeting Plumbing LLC | 62 | 4.8 (45+) | ||
Editorial: C Sweeting Plumbing LLC lists a physical service address in Oshkosh, Wisconsin. The business appears at Google Maps position 4 locally. Review volume shows 48 Google reviews, indicating regular service activity. Oshkosh winters demand careful combustion checks and proper venting for condensing furnaces. Reviewers flag:
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| 7 | GGartman Mechanical Services | 61 | 4.4 (55+) | Proper Sizing | |
Editorial: Manual J load calculations are noted on Gartman Mechanical Services' site. Gartman lists 24-hour emergency response for heating failures. Engineers on staff say they handle equipment selection and efficiency planning. Lake-effect winters in Oshkosh increase heating runtime and venting importance. Customer testimonials mention fast emergency restores for local businesses. Strengths:
Reviewers praise:
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| 8 | AAndresen Sheet Metal Heating & Cooling | 61 | 5.0 (8) | ||
Editorial: Andresen Sheet Metal Heating & Cooling lists heating and cooling services from its Oshkosh shop. The business operates from a west Oshkosh address on Witzel Avenue. Eight Google reviews indicate a small, locally focused customer base. Oshkosh winters demand proper combustion and venting for condensing furnaces. Reviewers flag:
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| 9 | AAnderson HVAC LLC | 60 | 4.8 (30+) | 20+ | |
Editorial: Same-day furnace replacements and emergency heating service are listed on Anderson HVAC's site. Anderson HVAC notes customer-care dealer status with American Standard. Anderson HVAC reports over 20 years in business since 2006. In Oshkosh winters, they emphasize service response and gas-piping work for safe combustion setups. Strengths:
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| 10 | MMerten Plumbing & Heating Inc. | 59 | 4.6 (10) | ||
Editorial: Merten lists furnace replacement and installation as a core specialization. The company traces its roots back over a century. Oshkosh winters make dependable heating essential for safe homes. Review excerpts cite prompt emergency responses and same-day help. Strengths:
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| 11 | AAmerican Heating & Air Conditioning | 58 | 5.0 (4) | ||
Editorial: American Heating & Air Conditioning operates from 1129 Michigan Street in Oshkosh. Winters in Oshkosh increase furnace-use and replacement demand. Google lists four customer reviews for the business. The Google Maps listing positions the company at number 12 locally. Reviewers flag:
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| 12 | WWesley Heating & Cooling | 53 | 4.3 (25+) | 75+ | |
Editorial: Financing: Wesley Heating & Cooling lists financing options for new installations. Strengths:
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Typical Furnace Replacement 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 |
|---|---|
| Full gas furnace replacement (80% AFUE, installed) | $2,950–$6,400 |
| High-efficiency condensing furnace (95%+ AFUE, installed) | $4,450–$9,350 |
| Modulating / two-stage variable-speed (ECM) furnace upcharge | $590–$1,950 |
| Condensing-furnace venting + condensate conversion (80%->95% AFUE) | $590–$1,750 |
| Gas line / electrical / permit modification (changeout) | $150–$885 |
| Electric furnace / air-handler replacement (installed) | $1,950–$4,900 |
Nearby Wisconsin furnace replacement pricing: Appleton · Eau Claire · Fond Du Lac
See broader context: Furnace Replacement pricing in Wisconsin · Furnace Replacement pricing nationwide
How were these Oshkosh furnace replacement listings evaluated?
This guide compared 12 furnace replacement providers serving Oshkosh. Rankings used Google review metrics, provider-reported emergency and warranty signals, years in business, and service specialization such as high-efficiency installs and Manual J sizing.
- According to Google Maps data, the group average rating is 4.7/5.0 across 596 total reviews.
- OSHKOSH HEATING & AIR, LLC shows 4.8/5.0 with 145+ reviews on Google Maps.
- Kurt Zentner & Sons, Inc. reports same-day emergency response per its provider data.
- A&BE Heating and Cooling, LLC lists 24-hour emergency response per its website.
- Anderson HVAC LLC lists 24/7 emergency response and notes financing and free estimates per its website.
Compare Google review signals alongside provider-reported credentials and service details when shortlisting contractors.
How do I choose a Furnace Replacement Company in Oshkosh?
- Verify license and local years in business from the provider website or registry.
- Compare Google review counts and average ratings for recent feedback.
- Confirm emergency response windows and warranty terms with each provider.
- Request a Manual J load calculation for accurate sizing and estimates.
- Check financing and free-estimate options before scheduling installation.
5 furnace issues Oshkosh homeowners report when cold weather hits
What are the most common furnace problems in Oshkosh? Long, cold winters and frequent freeze-thaw cycles push aging systems hard, causing ignition failures, cracked heat exchangers, and collapsed venting that surface during peak heating demand. Homeowners see breakdowns most often during sustained subfreezing stretches.
- Ignition and pilot failures. Extended cold spells in Oshkosh cause repeated start-stop cycles that stress ignition components and electronic controls, leading to hard-starts or no-heat calls.
- Cracked or corroded heat exchangers. Heavy seasonal use during long winters accelerates metal fatigue and corrosion in older furnaces, increasing risk of cracks and carbon-monoxide hazards.
- Vent and flue blockages from snow and ice. Significant snowfall and freeze-thaw events near Oshkosh can obstruct outdoor vents, causing backdrafting or safety shutoffs on modern units.
- Short cycling from dirty filters or restricted airflow. High heating demand in winter highlights clogged filters and duct restrictions, which cause inefficient operation and premature component wear.
- Failing burners or gas valve problems. Prolonged cold-weather operation in Oshkosh exposes weak burners and aging gas valves, producing reduced heat output or intermittent operation.
Why Oshkosh’s population size and seasonal patterns push repair windows tight
Long, cold winters and a compact population concentrate demand into short repair windows, increasing same-week booking pressure for affordable furnace replacement services in Oshkosh, WI. Homeowners face tight scheduling when furnaces fail during sustained subfreezing stretches.
Oshkosh’s long heating season raises peak demand during colder months. Higher call volume compresses available appointment slots.
Smaller local crews mean faster booking fills during cold snaps. This pressure shortens the window for planned replacements.
Freeze-thaw cycles increase midwinter failures, which increases emergency replacement needs. Evaluated providers often advertise emergency service availability to meet those peaks.
Many evaluated providers list 24/7 emergency service or rapid same-day options (advertised). Look for contractors offering emergency response when winter storms arrive.
Seasonal heavy use also raises interest in higher-efficiency equipment. Several local listings note "Efficiency Tier" equipment in their offerings.
Upgrading to higher-efficiency furnaces reduces runtime and lowers failure risk during prolonged cold. Seek providers who offer efficiency-tier installs and documented warranty terms.
Local licensing and bonding requirements affect scheduling and permits. Confirm contractors carry the required business license, bonding, and workers' compensation.
How long does furnace replacement usually take in Oshkosh, and who requires permits?
- How do I get a quote from these furnace replacement companies?
- Submit one request on this page and we send it to the vetted furnace replacement pros in Oshkosh, WI listed here. They send quotes back — no obligation.
- What does furnace replacement service typically run in Oshkosh, WI?
- Full gas furnace replacement typically runs $2,950–$6,400, and high-efficiency condensing furnace runs $4,450–$9,350 in Oshkosh, Wisconsin. See the Furnace Replacement pricing table on this page for the full per-service breakdown.
- How long does a typical furnace replacement take in Oshkosh?
- Most full furnace replacements in Oshkosh are completed in one to two working days depending on system complexity and ductwork changes. Smaller swap-outs with matching connections can finish in a single day. Contractors will outline the estimated timeline in the pre-install plan and work order.
- Who needs a business license or bonding to perform furnace replacements in Oshkosh?
- Contractors performing furnace replacement in Oshkosh must hold a city business license and bonding as required by local rules. Homeowners should confirm a contractor’s license, proof of bond, and workers' compensation before hiring. Verified paperwork reduces permit and liability surprises.
- Are homeowners required to pull permits for furnace replacement in Oshkosh?
- Permits are typically required for furnace replacement that involves gas piping, combustion venting, or significant mechanical changes. Ask the chosen contractor whether a city or county permit applies and whether they will obtain it on the homeowner’s behalf.
- How do I find a high-efficiency furnace specialist in Oshkosh?
- Look for contractors who list high-efficiency furnace installs in their service descriptions and who can provide manufacturer-dealer credentials. Check product model numbers on estimates, warranty terms, and customer reviews mentioning energy savings. Request references for past high-efficiency installs.
- What should I check when hiring a contractor for a gas furnace replacement in Oshkosh?
- Verify the contractor’s experience with gas appliances, proof of bonding, and insurance. Confirm they follow local gas piping codes and will secure required permits. Request a written scope, venting plan, and manufacturer warranty documentation before work begins.
- Can contractors in Oshkosh replace a furnace and air conditioner at the same time?
- Yes. Many contractors offer combined furnace and AC replacement projects. Coordinate both systems early to ensure compatible refrigerant lines, controls, and electrical service. Bundle quotes to compare combined labor and material efficiency across providers.
- Are there special rules for oil-fired furnace replacement in Oshkosh?
- Oil-fired replacements require contractors familiar with oil tanks, safe fuel piping, and proper combustion testing. Confirm the contractor’s oil system experience, bonding, and whether they handle tank removal or abandonment per local waste rules. Ask for post-install combustion and safety reports.
- Do commercial furnace replacement permits differ from residential permits in Oshkosh?
- Yes. Commercial replacements often involve larger mechanical permits and inspections and may require additional bonding or plan reviews. Project scope determines required approvals. Contractors experienced in commercial work can guide permit submission and inspection scheduling.