
Serving San Francisco, CA and surrounding areas
Approved
In business since 2009
Free estimates
Emergency services offered
"Rudy replace furnace the next day after repair failed"





+9


Serving San Francisco, CA and surrounding areas
Approved
In business since 2009
Free estimates
Emergency services offered
"Rudy replace furnace the next day after repair failed"





+9

Serving San Francisco, CA and surrounding areas
Approved
Super Service Award Winner
In business since 1991
Free estimates
Emergency services offered
"Aire Systems of Campbell and Saratoga truly sets the standard for exceptional service in the HVAC industry. Alton, the owner, went above and beyond to ensure I understood every aspect of the process, from selecting the right system for my small home to navigating available rebate programs. His expertise and dedication to customer satisfaction stood out as he guided me through the rebates step by step, emphasizing how beneficial they are despite the effort required. What really impressed me was Alton’s commitment to follow through—he’s not just selling systems, he’s supporting his customers well beyond installation. Daniel, the team lead installer, was equally remarkable. Always punctual and professional, he demonstrated a level of care that extended beyond the job itself. He kept me informed daily, explaining what was being done, what to expect next, and how long it would take. Knowing I had to leave for work, Daniel kindly spent time with my dogs, making sure they felt at ease while he worked. It’s rare to find a company that combines technical expertise with such personal care. Aire Systems, with Alton and Daniel at the helm, earns my highest recommendation!"





+58

Serving San Francisco, CA and surrounding areas
Approved
In business since 2021
Free estimates
Credit card accepted
"Furnace replacement was excellently installed, and thus far has worked to perfection. I would highly recommend Red Mountain Heating and Air."

Serving San Francisco, CA and surrounding areas
Approved (Corporate)
In business since 1981
Free estimates
Warranties offered
"Appointment was scheduled between 8am-4pm. Waited all day for the tech (Jeremiah) to arrive. Then received a phone call a little after 3pm indicating they needed to reschedule for the next day almost at the last moment. Needless to say, we got off to a rocky start, but Jeremiah did finally show up around 5pm, isolated the problem in less then 5 minutes, showed me what to do and what not to do when changing batteries out of the thermostat, and pointed out which fuse had blown keeping the furnace from coming on. In conclusion, they made this right, I received a well-needed lesson on minor furnace maintenance, and was able to get the furnace working again. Would I hire this company again? Absolutely, and if you are having problems with your furnace, you might want to consider these people as well!"





+73
Serving San Francisco, CA and surrounding areas
Approved
In business since 1978
Free estimates
Warranties offered
"Jim's Air Systems had the best value for my dollar. They supplied me with better equipment than they quoted for the same price. They completed the entire installation in about five hours. They protected my floors with tarps and were very careful to protect my walls as they moved equipment in and out. Josh, the son of the original Jim, was on the job working with the other two installers. They performed above my expectations. They left my home and yard as clean as if they had never been there. The new furnace is wonderful and is already saving me money on my P.G. & E. bill. I would recommend Jim's Air Systems unconditionally to anyone in need of a new furnace and AC system. This is a family business that has been supplying and installing systems since 1976. They take personal pride in doing an excellent job. They did not sell me anything that I did not need and provided me with a much cleaner and easier-to-service installation than my existing system. They are the best!"

Serving San Francisco, CA and surrounding areas
Approved (Corporate)
Super Service Award Winner
In business since 1953
Free estimates
Emergency services offered
"I had a new HVAC system installed in early November. There was some work from the installation of that new system that needed repair. I advised them of the issue and scheduled the work. They sent a technician out and he took care of it."

Serving San Francisco, CA and surrounding areas
Approved
In business since 2003
Customers say: Super punctual
"I contacted Tim about doing some work and received a response immediately. He showed up exactly at the agreed time with an assistant. Tim and Mario were friendly and professional. They worked efficiently and were very clean. Tim was unable to install a ceiling fan, but referred me to an electrician who is able to do it. I could not have been happier with the services Tim provided and will be contacting him in the future with other jobs.
"

Serving San Francisco, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2024
Free estimates
Warranties offered
"Our furnace went out midday Friday, they had a tech out same day and come first thing Monday morning to fix it. Everything was quick and streamlined. They were awesome to work with and we will use them in the future!"





+6

Serving San Francisco, CA and surrounding areas
Approved
In business since 2022
Free estimates
Credit card accepted
"I had Majestic Heating and Air install a new furnace in my home, and I?m very pleased with their service. The team was professional, on time, and handled the installation with care and efficiency."

Serving San Francisco, CA and surrounding areas
Approved
In business since 2022
Free estimates
Credit card accepted
NUR HVAC, Inc. is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests and make their concerns the basis of our business.





+4
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.

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