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Find Furnace / forced air heating system install or replace pros in Janesville

Avatar for Clark Heating & Cooling
Clark Heating & Cooling
4.8(
453
)

Serving Janesville, WI and surrounding areas

Approved

In business since 1980

Free estimates

Emergency services offered

"Clark Heating and Cooling was able to come to my house the same day that I called for a much lower service fee ($74) than other companies that I called. The Clark technician immediately knew what was wrong with my AC when he heard the unit and had the part replaced in under 20 minutes."
Ductwork going around framing in new home build
New Home Ductwork
PRODUCTS AND SERVICES
Additional Photos
Additional Photos

+4

Response time1 day
5 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for KETTLE MORAINE HEATING & AIR CONDITIONING LLC
KETTLE MORAINE HEATING & AIR CONDITIONING LLC
4.8(
192
)

Serving Janesville, WI and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"We had this system installed by Kettle Moraine in May 2018. This was our first annual inspection of the furnace, as we had the air conditioning checked out this May. Kyle called ahead of his scheduled arrival to confirm he would be on time. He arrived on time, put his booties on to protect our floors, and got right to work. He did a real nice job of checking everything out, and discovered a water leak that was allowing a small amount of moisture/liquid to get on top of the heat exchanger, in three different places, which would over time create significant problems both with the upper and lower heat exchangers. He exlained very clearly, even showing me what was wrong , and what he suspected was causing the leak. He immediately contacted Lennox, and ordered the replacement parts, from our basement. He estimated the parts would be in the shop and ready for installation in about a week. While I'm not thrilled with the quality of the Lennox furnace, leaking and need major parts being replaced within a couple of years, their 10 year parts and labor warranty will cover everything, so that's great."
Radiant In floor Heating
Furnace Replacement with Humidifier
Additional Photos
Additional Photos
Additional Photos

+8

Response time2 days
14 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for ThermaTek Heating and Air
ThermaTek Heating and Air
4.7(
345
)

Serving Janesville, WI and surrounding areas

Approved

Super Service Award Winner

In business since 2018

Free estimates

Emergency services offered

"The technician pro that arrived was friendly, assessed the problem, checked for parts and got our furnace up and running under 30-minutes time. I would definitely refer ThermaTek Heating and Air to my family and friends. Great experience!"
Ac install
Ac install
Ac install
Ac install
Ac install

+16

Response time3 hrs
Response rate90%
9 neighbors recently requested a quote
Avatar for Fab Tek Custom Sheet Metal & HVAC, LLC
Fab Tek Custom Sheet Metal & HVAC, LLC
4.9(
9
)

Serving Janesville, WI and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"Fab Tek installed both a heating and air conditioning unit in our Summer home. Very happy with the work, finally had a chance to test both the heat and air conditioning and they are working great! Would recommend Fab Tek to anyone needing HVAC work done. The customer service was top notch."
Martinsons Arcade..
Martinsons Arcade...
Oil Furnace...
New furnace...
Flipped House...

+5

Response time12 hrs
Recommended by88%of homeowners
Avatar for Southport Home Services
Southport Home Services
5.0(
11
)

Serving Janesville, WI and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"Jacob from Southport came out for an on-site inspection of my furnace. He inspected the unit and ran a full set of tests for functionality. I received detailed answers to all my questions, and it was overall a great visit."
Boiler
Upstairs Furnace
Lineset/Electrical
Basement Furnace
Air Conditioner

+11

33 neighbors recently requested a quote
Avatar for Rock Valley Services, Inc.
Rock Valley Services, Inc.
4.9(
10
)

Serving Janesville, WI and surrounding areas

Approved

In business since 2003

Free estimates

Warranties offered

"Rock Valley replaced our ancient furnace and did a great job . Great customer service, good prices, all around a good experience. Planning on using Rock Valley to replace my AC unit as well !"
New Air Conditioner
Response time8 hrs
6 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Edelman Heating, Cooling, Plumbing, Electric & Solar
Edelman Heating, Cooling, Plumbing, Electric & Solar
5.0(
5
)

Serving Janesville, WI and surrounding areas

Approved (Corporate)

In business since 2003

Free estimates

Emergency services offered

Here at Edelman, we’re your trusted local team for HVAC heating & cooling services around southern Wisconsin. We provide residential repair, replacement, installation, and maintenance.\n\nEdelman is built on 23 years of experience, a strong work ethic, and a commitment to delivering the best service to every client and customer. We stand behind our work with a 100% Satisfaction Guarantee on all service, repairs, and replacements. We stand behind our work with a 100% Satisfaction Guarantee on all service, repairs, and replacements.

Mini Split Install
Mini Split Install
Mini Split Install
Mini Split Install
Central AC Unit

+10

25 neighbors recently requested a quote
Avatar for Master Services, Inc.
Master Services, Inc.
4.3(
317
)

Serving Janesville, WI and surrounding areas

Approved

Super Service Award Winner

In business since 1990

Free estimates

Emergency services offered

"Danny Carillo did a thorough and comprehensive analysis of our older furnace. He measured, tested, and then explained in clear language that our older furnace was in good shape by explaining how furnaces age, and what are likely system failures when the system is no longer working to our advantage. It was like a physical for a doctor. Danny was very knowledgeable and pleasant to us, It's clear that he is an excellent member of a well prepared team who know that by taking care of the customer is going to ensure the HVAC system will work with the best performance."
Master Services Team
Response time8 hrs
Response rate93%
11 neighbors recently requested a quote
Avatar for All Comfort Services
All Comfort Services
5.0(
6
)

Serving Janesville, WI and surrounding areas

Approved

In business since 1973

Free estimates

Emergency services offered

All Comfort Services is a 50+ year old employee-owned heating, cooling, plumbing, and electrical contractor serving residential and commercial customers in Dane and parts of Rock, Columbia, and Jefferson counties. We may need to confirm a specific zip code that we service. Our team understands that when you call a local electrician, you need a trained, certified, and insured professional who will arrive on time and be ready to provide the solutions you need. Our repair dispatch fee is $149.

Generator
Generator
Panel Installation
Service Upgrade
12 neighbors recently requested a quote
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FAQs for furnace / forced air heating system install or replace projects in Janesville, WI

Converting from an oil furnace to an electric furnace isn't a simple swap—the oil system needs to be completely removed before installing the electric furnace. You'll need a full electric system installation, but you might be able to reuse existing ductwork if it's up to current safety standards. You’ll need to budget for a new electric furnace installation, which costs between $1,800 and $6,200, including professional removal, proper disposal, and safe installation of the new system.

Electric furnaces are 100% efficient at converting electricity into heat. However, some of that heat can be lost as it travels through your home's ductwork or escapes through poorly insulated areas. That's why regular duct maintenance and proper home insulation are important to maximize your furnace's efficiency and reduce heat loss, ensuring consistent warmth and lower energy costs.

With proper maintenance, an electric furnace can last anywhere from 20 to 30 years, outlasting the average gas furnace's lifespan of 15 to 20 years. To keep your electric furnace running efficiently, schedule regular cleanings, tighten connections, and have inspections done before winter arrives. With routine maintenance, you’ll ensure consistent, safe heating for years to come.

The size of the electric furnace you need depends on factors like your home's square footage, climate, and insulation quality. As a general guideline, those who live in warmer climates should multiply their square footage by 30 to 35 BTUs, while those in cooler areas should multiply it by 50 to 60 BTUs.

Consulting with an HVAC professional can help you determine the exact size that's right for your home.

An electric furnace works by converting electricity into heat using high-resistance heating elements. A blower then pushes the warm air through your home's ductwork, distributing heat evenly throughout your space. Since there's no combustion involved, electric furnaces eliminate the risks associated with gas furnaces and provide consistent, reliable heating when properly installed.

An electric furnace uses between 40 and 80 kilowatts per day to heat your home. The exact amount it uses depends on factors like your home's size, insulation, and overall energy requirements. Larger homes or those with poor insulation use more energy than smaller, well-insulated spaces. A professional furnace assessment can help confirm the ideal unit size for your needs.

The Janesville, WI homeowners’ guide to furnace / forced air heating system installs or replaces

From average costs to expert advice, get all the answers you need to get your job done.