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

Avatar for AC Dave Heating & Air
AC Dave Heating & Air
4.9(
93
)
Electric Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - InstallBoiler or Radiator Heating System - Install or Replace+43 more

Serving Altadena, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Free estimates

Emergency services offered

"I had AC Dave preform three jobs for me over the past few years. (1) New ducts a few years ago. (2) Installed a mini-split heat pump in master bedroom this year. (3) Then a few months later I had him remove my old Central AC and replace it with an 18 SEER heat pump and new coil, all the while leaving my old furnace in place as a back up. Dave and his guys did a great job on all three projects, completing each one in a day. Highly recommended."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+6

Response time7 hrs
Response rate100%
7 neighbors recently requested a quote
Avatar for Trinity Heating and AC
Trinity Heating and AC
5.0(
46
)
Gas Furnace / Forced Air Heating System - RepairThermostat - Install or ReplaceElectric Furnace / Forced Air Heating System - Repair+2 more

Serving Altadena, 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%
31 neighbors recently requested a quote
Avatar for Top Energy Solutions, Inc.
Top Energy Solutions, Inc.
4.9(
62
)
Electric Furnace / Forced Air Heating System - InstallElectric Furnace / Forced Air Heating System - Install - For BusinessGas Furnace / Forced Air Heating System - Install+3 more

Serving Altadena, CA and surrounding areas

Approved

In business since 2019

Free estimates

Warranties offered

"Top energy solutions did a highly professional and skilled job in installing two furnaces and two air conditioners and also remove and install new attic insulation in my home. One furnace was gas and one was heat pump electric. If the installers were supposed to be on the job at 8:00am they were here. The installers were highly skilled and cleaned up at the end of each day. Top energy solutions did a highly professional and skilled job in installing two furnaces and two air conditioners and also remove and install new attic insulation in my home. One furnace was gas and one was heat pump electric. If the installers were supposed to be on the job at 8:00am they were here. The installers were highly skilled and cleaned up at the end of each day. Leor was constantly on site supervising the project from beginning to end. Every aspect of the job (planning, designing, installation, etc.) was done at a highly ethical, professional and skilled level. Based on my husbandâ  s and my experience, Top Energy Solutions deserves the highest rating possible and we highly recommend the company for heating and cooling solutions. We will not hesitate to use them again for other properties."
Roof Replacement  - Owens Corning Shingle Roof
New Windows Installation in Hollywood
5 Ton Furnace Replacement
Attic insulation
New Mini Split - Daikin Emura

+87

Response time1 day
Response rate98%
4 neighbors recently requested a quote
Avatar for HD MECHANICAL INC
HD MECHANICAL INC
4.9(
32
)
Gas Furnace / Forced Air Heating System - InstallDuctless Mini-split Heating System - Install or ReplaceElectric Furnace / Forced Air Heating System - Install+43 more

Serving Altadena, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Emergency services offered

"I booked online and got same day services-that’s an A++ for me and Chris the technician was on time-He came from the OC to Palmdale-Within the hour of arrival he help fix our AC issues-For the service and traveling fee and parts the balance fee was not so bad-Was Totally worth it to have our AC working again in this heat-Thanks HD Mechanicals Inc for the great fast service"
Heating & A/C Project
Heating & A/C Project
Heating & A/C Project
Heating & A/C Project
Additional Photos

+14

Response time6 hrs
Response rate100%
77 neighbors recently requested a quote
Avatar for Temp Air System, Inc.
Temp Air System, Inc.
4.8(
59
)
Gas Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - RepairHeat Pump - Install or Replace+1 more

Serving Altadena, CA and surrounding areas

Approved

In business since 2002

Free estimates

Credit card accepted

"We had Temp Air install our AC unit. The best decision we ever made. They were fast, reliable and dependable. Excellent customer service, did a phenomenal job. After a couple of years something was going on with our unit, I called them and immediately they send out a technician Juan, who was phenomenal. He explained what the issue was and resolved it asap! Highly recommend this company!"
Mini Split Installation
Mini Split Installation
Mini Split Installation
Mini Split Installation
Mini Split Installation

+14

Response time10 hrs
Response rate99%
10 neighbors recently requested a quote
Efficiency Air, Inc.
4.8(
321
)
Gas Furnace / Forced Air Heating System - InstallHeat Pump - Install or Replace

Serving Altadena, CA and surrounding areas

Approved

Super Service Award Winner

In business since 1985

Free estimates

Credit card accepted

"Efficient is the perfect word to describe this company. A highly professional installation team arrived early in the morning and the job was completed prior to noon. We had a new HVAC heat pump system installed to replace a gas-fired system. Pricing was on point. The system is virtually noise-free compared to that which was removed. Tim, the Owner was very easy to deal with on every level (no hard sell). Highly recommend."
A/C Condensers
A/C Condensers
A/C Condensers
A/C Condensers
Canoga Park, Goodman A/C

+50

Response time7 hrs
58 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for DNA Heating & Cooling, Inc.
DNA Heating & Cooling, Inc.
4.8(
57
)
Ducts & Vents - Install or ReplaceElectric Furnace / Forced Air Heating System - RepairElectric Furnace / Forced Air Heating System - Repair - For Business+8 more

Serving Altadena, CA and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"Andrew, Ivan, and Lucas were very professional and did an outstanding job. We would highly recommend them, and we will definitely be using them for our heating and cooling needs. We would happily give them five stars if the software would permit that."
New Blown in insulation
New R-30 blown in insulation
Recessed Light cover
Foam Gun
Sealed Plumbing attic penetrations

+26

Response time5 hrs
1 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for Help-Me HVAC LLC
Help-Me HVAC LLC
5.0(
27
)
Electric Furnace / Forced Air Heating System - RepairGas Furnace / Forced Air Heating System - RepairHeat Pump - Repair or Service+1 more

Serving Altadena, CA and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"Haroon Sayed was great. He came by, assessed my issues with the furnace, thoroughly explained everything to me and provided me with my options on repairing or replacing the system. He was very professional & friendly man,and Highly recommend them if AC/Furnace issues"
My jobs
My jobs
My jobs
1 neighbors recently requested a quote
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FAQs for furnace / forced air heating system install or replace projects in Altadena, 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 Altadena, 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.