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AC units after being repaired by a local pro

5 Best AC Repair Services in Janesville, WI

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Written By Max Peterson|Last Updated: April 18, 2024

Technical malfunctions can be a nightmare scenario for homeowners who need an air conditioner (AC) repair in Janesville, especially in the summer months when comfort is essential. Begin your AC repair company search with these respected Janesville providers, and learn more about replacing your AC and future-proofing your home with this useful guide.

Top AC Repair Companies in Janesville, WI

R&W Heating & Cooling Inc Logo

R&W Heating & Cooling

Based on 40 customer reviews.

Services Offered

VentilationEmergency ServicesFiltrationFurnace InstallationIndoor Air QualityAc RepairMaintenanceAc Installation


  • Free quote
  • Reliable customer support
610 E Madison Ave, Milton, WI 608-868-3547 rwheating.net
Rock Valley Services, Inc. Logo

Rock Valley Services

Based on 279 customer reviews.

Services Offered

MaintenanceIndoor Air QualityAc RepairBoiler RepairAc InstallationDuctlessDuct CleaningFurnace RepairFurnace InstallationFiltrationBoiler Installation


  • Free quote
  • Reliable customer support
  • Clear pricing policy
928 Todd Dr #2, Janesville, WI 608-247-4949 rockvalleyservices.com
Armstrong Heating & Cooling Logo

Armstrong Heating & Cooling

Based on 49 customer reviews.

Services Offered

Furnace InstallationVentilationMaintenanceIndoor Air QualityDuctlessAc InstallationAc RepairBoiler InstallationFiltration


  • Clear pricing policy
  • Reliable customer support
1205 Industrial Dr, Fort Atkinson, WI 920-563-8825 armstrongheatingandcooling.net
Reynolds Heating and Cooling LLC Logo

Reynolds Heating and Cooling

Based on 27 customer reviews.

Services Offered

Furnace InstallationDuct CleaningEmergency ServicesIndoor Air QualityAc RepairAc Installation


  • Free quote
  • Clear pricing policy
  • Reliable customer support
532 E Milwaukee St, Whitewater, WI 262-473-2590 reynoldshtg.com

More Local Hvac Companies

Aire Serv of Lake Geneva

User Reviews: 4.6/5 

N, 1314 Brick School Rd
Walworth, WI 53184

Air Systems Inc.

User Reviews: 4.6/5 

4520 Co Hwy F
Elkhorn, WI 53121

Perfect Temp Heating & Cooling

User Reviews: 5/5 

6813 Elm Ave
Loves Park, IL 61111

Edelman Heating, Cooling, Plumbing, Electric & Solar

User Reviews: 4.5/5 

5384 WI-11
Elkhorn, WI 53121

Gough Heating & Air Conditioning Ltd

User Reviews: 4.4/5 

412 River Ln
Loves Park, IL 61111

ALCIVIA Heating and Cooling

User Reviews: 4.6/5 

2580 Coffeytown Rd
Cottage Grove, WI 53527

Harker Heating & Cooling

User Reviews: 5/5 

87 W Beltline Hwy
Madison, WI 53713

Southport Home Services

User Reviews: 4.6/5 

3304 Dairy Dr
Madison, WI 53718

Area Mechanical Inc

User Reviews: 4.2/5 

2707 Huffman Blvd
Rockford, IL 61103

To share feedback or ask a question about this article, send a note to our Reviews Team at reviewsteam@thisoldhousereviews.com.

AC units after being repaired by a local pro

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Facts about Janesville
Average Max Temp Percentile:30.7%
August Average Max Temp:80.9°F
Climate Zone:Cold
Average Energy Cost:$0.14/kWh
Median Year Houses Built:1972
Average Heat Waves per Year:0.91

Expert Tips By

This Old House empowers homeowners with the knowledge and tools they need to tackle various projects and navigate the complexities of homeownership.

Common Types of Air Conditioners

HVAC technicians have the expertise to service most air conditioner models, but knowing more about what you have can be beneficial. Below, we'll explain each of the common AC systems.

  • Split ACs: Split air conditioner units have two main elements: one inside and one outside. They provide peaceful operation, enhanced efficiency, ductwork options, and more cooling capability versus mini-splits.
  • Ductless mini-split: Ductless mini-split air conditioner systems have an exterior unit and one or more indoor units, with no ductwork required. They offer higher energy efficiency, individual room temperature control, and flexible installation options.
  • Window ACs: Window air conditioners are a popular choice for Janesville townhomes, condos, and apartments. These compact, affordable units are designed for cooling single rooms and small spaces, and they fit snugly in a window frame or dedicated wall slot. Many window-mounted AC users install their units without professional assistance, though technicians can still help with maintenance and repairs.
  • Portable air conditioners: As the name suggests, portable ACs don't require permanent installation or ductwork. Instead, they remove hot air through an exhaust hose connected to a window or nearby vent. They're a common choice for condos, apartments, or individual rooms.
  • Central AC: These are the most common residential AC systems, offering consistent, precise temperature control. They feature a central unit that cools and purifies outside air and sends it through ducts to various rooms in your home.

How to Choose Your Janesville AC Repair Service

You likely want a quick solution for your air conditioner's problem. However, before recruiting a repair company, it's important to take the time to research if they're ideal for your dwelling. Here are a few essential steps to follow.

Confirm the Company Is Properly Licensed and Insured

Wisconsin HVAC contractors are licensed through the Department of Safety and Professional Services. Even with this license, an HVAC company must still subcontract electrical and plumbing work.

You should also check a company has sufficient liability coverage, even if your state doesn't require it. Choosing an insured company will protect you if accidents happen during work.

Read Customer Reviews

Find customer reviews on the Better Business Bureau (BBB) website for each company you're interested in. The BBB accredits businesses that respond to complaints effectively and honor their warranties.

It's common for even the best AC repair companies to have both positive and negative reviews. Read each one carefully, and avoid a company if most reviewers had subpar experiences.

Compare Estimates

Obtain at least three detailed, written estimates from different providers for the best value. A good estimate should factor in additional fees such as permitting costs. You should also ask about the emergency repair process, installer guarantees, and manufacturer warranties.

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Frequently Asked Questions About AC Repair in Janesville

How much can I expect to pay for AC repair in Janesville?

Your air conditioner repair costs will hinge on the type of unit you have and the malfunctioning part. A basic repair job like sorting out a thermostat might cost $150–$250, whereas a more intricate fix like switching out the compressor will be more expensive.

See the average costs for common AC repairs below.

Common RepairAverage Cost
Clogged air filter$61–$163
Electrical circuits$200–$250
Drainage problems$100–$150
Refrigerant leak$400–$1500
Frozen condenser coils$1,221–$3,664
Fan or air blower issues$150–$200
Compressor replacement$600–$1,547

How often should Janesville homeowners have their AC systems serviced?

Homeowners should have their AC systems serviced once a year to ensure optimal performance. This usually involves cleaning the outdoor unit of brush and debris. Regular servicing can help to maintain the system's efficiency and prolong its lifespan.

When is the best time to replace an AC unit?

The best time to replace HVAC systems is during the off-season, when there's less demand for HVAC technicians and costs are cheaper. With Janesville's weather patterns, this is usually between late September and the middle of November or early March to mid-May.

What do I do if my AC is running but not cooling?

If your AC is running but not cooling, a blocked condenser coil could be the culprit. Normally, the AC’s condenser fan draws air into the outdoor unit through the condenser coil to remove heat energy from your home. A technician can help by clearing the clog or replacing a defective coil.

How long is my air conditioner's lifespan? When should I consider a replacement?

You won’t need to replace air conditioner for 10–15 years with proper maintenance. As your AC ages, its mechanical parts might become unavailable. You'll probably need to consider new AC installation if your company can't find a broken part.

To share feedback or ask a question about this article, send a note to our Reviews Team at reviewsteam@thisoldhousereviews.com.