
Serving Round Lake, IL and surrounding areas
Approved
In business since 1946
Free estimates
Emergency services offered
"Very well. The tech did a thorough job checking both the furnace and air conditioning unit. He answered any questions we had,"





+2


Serving Round Lake, IL and surrounding areas
Approved
In business since 1946
Free estimates
Emergency services offered
"Very well. The tech did a thorough job checking both the furnace and air conditioning unit. He answered any questions we had,"





+2

Serving Round Lake, IL and surrounding areas
Approved
Super Service Award Winner
Free estimates
Emergency services offered
Warranties offered
"Dwayne from G & R Heating & Air did a very thorough job checking our AC system. He verified everything was in good working order. Dwayne was professional, courteous and friendly. I ended up purchasing the service contract."





+20

Serving Round Lake, IL and surrounding areas
Approved
In business since 1973
Free estimates
Emergency services offered
"Cahill installed my new furnaces in a professional manner and the units work very well. The annual service is thorough and complete. I am confident that the units are well maintained and not just given a cursory service. Installation of the ducts was done quickly and professionally and their advice helped me make the right decisions. They showed up to perform the work at the agreed time and completed the work efficiently. I didn't have to allocate a block of hours during which they might show up -- as with most service companies. I'm very pleased with this company."





+7

Serving Round Lake, IL and surrounding areas
Approved (Corporate)
In business since 1971
Free estimates
Emergency services offered
"We decided to replace an outdated AC unit and furnace with a brand new heat pump and furnace. After speaking with a Four Seasons sales rep, we knew they were the best choice to go with due to their thorough assessment, knowledge of products, availability of service and overall transparency. And perhaps most importantly, they were not pushy and respect our decisions on what system we felt was best for our home. As with any expenditure of this nature, there will be some ironing out of details and inevitable bumps to get everything completed, but the overall experience amounted to an energy-efficient HVAC system that was installed with care and expediency. Their service technicians are also friendly, thorough, knowledgeable, and available at a moment's notice. We are so glad that we went with Four Seasons."





Serving Round Lake, IL and surrounding areas
Approved
In business since 1998
Free estimates
Emergency services offered
"I hired them to install new combined water heater/ boiler, install new water filtration system and service the ac units.Great service and knowledgeable of what theyâ re doing. Definitely will hire them again."




Serving Round Lake, IL 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!"





+16

Serving Round Lake, IL and surrounding areas
Approved
In business since 1980
Free estimates
Credit card accepted
"We were very pleased with our experience with Northern Continental. Dave, the owner, was nice to deal with and answered our questions and concerns. The installation of our new AC and furnace unit was done promptly and professionally. We received quality service and a great product from Northern Continental."





+7
Serving Round Lake, IL and surrounding areas
Approved
In business since 1995
Free estimates
Emergency services offered
Dr. HVAC has been in business for 31 years, owned and operated by Steve Rokkas. Steve is personally involved with every project to insure complete customer satisfaction. If you are in need of a full-service HVAC contractor, call Dr. HVAC for reliable, speedy installation at the best prices in the Skokie, IL area. If you are looking for duct work or heating services call Dr. HVAC for the best customer service in the area. Contact us today!\nAll equipment comes with 5 yr part customer has to register for 10yrs parts

Serving Round Lake, IL and surrounding areas
Approved
In business since 2011
Free estimates
Emergency services offered
"For all your heating, ventilation, and air conditioning requirements, I highly recommend CR Mechanical Services. Their ability to address problems efficiently and promptly is truly impressive!"





+8

Serving Round Lake, IL and surrounding areas
Approved
In business since 2018
Free estimates
Emergency services offered
"Used Phoenix to replace a furnace and a few hot-water heaters in our multi-unit property, and we were extremely pleased with the results. Before starting, they worked with us to select an installation that would both meet our needs and fit within our budget. They also did a top-notch installation. A couple months after the install I had a plumber in the basement for an unrelated reason, and he remarked about how impressed he was with their work. Most importantly, they were very responsive to our needs, and showed a lot of flexibility. Because we have such an old (120+ years) home with so many architectural quirks, the typical installation they were planning on doing wasn't ideal, so they ended up trying something new and making additional trips to their supplier to get the parts they needed for a non-standard install that would suit us better. Overall, they did a really fantastic job, and we'll definitely reach to to them in the future."





+21
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.
From average costs to expert advice, get all the answers you need to get your job done.

Use this guide to budget for appliance installation costs based on factors such as appliance type, installation complexity, labor rates, and more.

Explore how factors such as materials, local labor rates, and the type of damage affect the cost to repair a burst pipe.

Use this guide to learn how much rebar costs per foot so you can budget for your next big home improvement project.

Discover how factors such as linear footage, local labor rates, and trim type affect the total cost of painting baseboards.

Learn how much cat or dog door installation costs based on factors like the door size, material, location, and added features.

Discover how much an electric furnace costs based on factors such as unit size, local labor rates, electrical upgrades, and ductwork condition.