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

Avatar for Cool Air Technologies Inc
Cool Air Technologies Inc
4.9(
493
)

Serving Foothill Ranch, CA and surrounding areas

Approved

In business since 1996

Free estimates

Warranties offered

"Perfectly! Bill and his associate arrived when they said they would, diagnosed the problem, left to pick up the required part, and returned with the part and installed it, all without a hitch. I particularly liked the way Bill checked to be sure all the functions of the furnace and air conditioner were working before he finished. This is a top-notch service company!"
Additional Photos
Response time2 days
8 neighbors recently requested a quote
Recommended by98%of homeowners
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Avatar for Ionel Firuta
Ionel Firuta
5.0(
30
)

Serving Foothill Ranch, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Emergency services offered

"My furnace was really old and it broke down. Ione gave me a great price and he replaced my furnace that same day. I will recommend him to all my friends and family."
Heating & A/C Project
Heating & A/C Project
Heating & A/C Project
Heating and Air Conditioning Project
Heating and Air Conditioning Project

+19

Response time10 hrs
Response rate100%
7 neighbors recently requested a quote
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NT Electric & HVAC
4.7(
47
)

Serving Foothill Ranch, CA and surrounding areas

Approved

In business since 2011

Customers say: Quick response

"I was out of town when my air conditioner stopped working. My mother called 2 companies to check it out. The repair men were interested in selling us a new unit not fixing it. I found NT Electric & HVAC online through Home Advisor while I was out of town. The company had good reviews. I called Nathan and scheduled an appointment. He assessed the problem and fixed it! I would highly recommend Nathan and his company. He does what s best for the customer. His prices are fair and reasonable. I would use him again."
Power supply
Response time7 hrs
2 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for Trinity Heating and AC
Trinity Heating and AC
5.0(
38
)

Serving Foothill Ranch, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Warranties offered

"Great experience! I hired Trinity to come out and Tune up and clean my Grandmotherâ s furnace. They were a pleasure to work withâ ¦ very courteous and professional! Extremely clean and friendly! I ended up hiring them to install my Central heating and AC at my home! I couldnâ t be happier!"
Furnace Before
AC After
Furnace After
AC Before
Before - Furnace

+83

Response time3 hrs
Response rate98%
48 neighbors recently requested a quote
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Avatar for HD MECHANICAL INC
HD MECHANICAL INC
5.0(
26
)

Serving Foothill Ranch, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Emergency services offered

"After recovering from a horrendous experience with Service Champions (NEVER EVER call them), I got several other quotes to completely replace my old AC system. Brandon and HD had the most competitive quote, great reviews and were very personable and professional. They installed entire new system and did a great job in a timely manner. I highly recommend!"
Heating & A/C Project
Heating & A/C Project
Heating & A/C Project
Heating & A/C Project
Additional Photos

+14

Response time9 hrs
Response rate85%
57 neighbors recently requested a quote
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Avatar for SO CAL BOYS HEATING & AIR INC
SO CAL BOYS HEATING & AIR INC
5.0(
54
)

Serving Foothill Ranch, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Emergency services offered

"Excelente work. Fast and efficient. Quiet system and great air coming out in every room. Would recommend to anyone needing any type of heating and air"
2 ton condenser
2 ton furnace
Response time2 hrs
Response rate99%
26 neighbors recently requested a quote
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Avatar for True Home Heating and Air Conditioning
True Home Heating and Air Conditioning
4.6(
33
)

Serving Foothill Ranch, CA and surrounding areas

Approved

In business since 1998

Emergency services offered

Warranties offered

"Pete came out,he explained everything that would be involved in replacing our a/c and furnace. The installers were helpful and they finished even faster than what they quoted. Definitely recommend!"
Financing Available!
Vehicle
Vehicle
Hero Financing
Response time1 day
Response rate100%
14 neighbors recently requested a quote
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Avatar for Northstar PHAC, Inc.
Northstar PHAC, Inc.
4.5(
128
)

Serving Foothill Ranch, CA and surrounding areas

Approved

In business since 2008

Free estimates

Credit card accepted

"The Tech went above and beyond to do my inspection and service. I did nor buy the yearly maintenance plan and I did not buy the $190. furnace filter ($20) at Home Depot. I had and still have a problem with the system. It makes a growling noise every 2 minutes or so. Thanks so much, anyways."
FURNACE AND COIL
new furnace
Our Beautiful Installs
Our Beautiful Installs
Our Beautiful Installs

+29

Response time3 hrs
Response rate93%
5 neighbors recently requested a quote
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Avatar for Cool Air For you
Cool Air For you
4.0(
16
)

Serving Foothill Ranch, CA and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"The blower motor on my furnace went out. Every company I asked for a quote told me I needed to replace the entire furnace and quoted me thousands of dollars to do so. I hired Cool Air For You and the tech came out the next day and replaced the blower motor in a few hours. The AC and heating works again and I didn't have to spend 4 or 5 figures. Highly recommended."
Additional Photos
Response time1 day
16 neighbors recently requested a quote
Recommended by85%of homeowners
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Avatar for Penguin Heating and Air Inc
Penguin Heating and Air Inc
5.0(
14
)

Serving Foothill Ranch, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Emergency services offered

"Was my consultant and advisor in the new repair system for my home"
Diamond Bar
Diamond Bar
Diamond Bar
Furnace Install
AC Condenser

+6

Response time2 hrs
Response rate100%
16 neighbors recently requested a quote
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FAQs for furnace / forced air heating system install or replace projects in Foothill Ranch, CA

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 Foothill Ranch, CA 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.

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