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

Avatar for General Air Technology

General Air Technology

4.93(
7
)
Approved Pro

General Air Technology

4.93(
7
)
Approved Pro
Customers say: Quick response
5 years of experience
Free onsite estimate

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Junior was totally on top of things. Installers were on time, polite and very efficient. I was given 5 quotes from other companies but General Air Technology was BY FAR the lowest quote."

nadine D on January 2022

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Junior was totally on top of things. Installers were on time, polite and very efficient. I was given 5 quotes from other companies but General Air Technology was BY FAR the lowest quote."

nadine D on January 2022


CA Heating and Air Conditioning

5.00(
9
)
Approved Pro

CA Heating and Air Conditioning

5.00(
9
)
Approved Pro
1 years of experience
Free onsite estimate

With 25 years of experience C.A Heating and Air Conditioning is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

"Usvaldo Valencia "

Usvaldo V on August 2025

With 25 years of experience C.A Heating and Air Conditioning is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

"Usvaldo Valencia "

Usvaldo V on August 2025


Avatar for COMFORT ZONE HEAT AND AIR INC

COMFORT ZONE HEAT AND AIR INC

5.00(
10
)
Approved Pro

COMFORT ZONE HEAT AND AIR INC

5.00(
10
)
Approved Pro
Free onsite estimate

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's custom needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"The Comfort Zone team earned their five star rating on my projects! They were efficient and responsive, solving my heating and cooling needs skillfully and effectively. I had a second story that wasn’t getting enough a/c - Bobby came up with a creative and cost-effective solution and now I sleep soundly upstairs! These guys are a great choice and a pleasure to work with. "

Linda P on August 2025

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's custom needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"The Comfort Zone team earned their five star rating on my projects! They were efficient and responsive, solving my heating and cooling needs skillfully and effectively. I had a second story that wasn’t getting enough a/c - Bobby came up with a creative and cost-effective solution and now I sleep soundly upstairs! These guys are a great choice and a pleasure to work with. "

Linda P on August 2025


Avatar for Dennis's Heating & Cooling

Dennis's Heating & Cooling

5.00(
9
)
Approved Pro

Dennis's Heating & Cooling

5.00(
9
)
Approved Pro
1 years of experience
Free onsite estimate

DENNIS'S HEATING & COOLING 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.

"Dennis did a great job inspecting my heat pump, was very responsive, and I highly recommend him."

Geoff P on September 2025

DENNIS'S HEATING & COOLING 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.

"Dennis did a great job inspecting my heat pump, was very responsive, and I highly recommend him."

Geoff P on September 2025


Avatar for Atlas Trillo Heating & Air Conditioning

Atlas Trillo Heating & Air Conditioning

4.82(
30
)
Approved Pro

Atlas Trillo Heating & Air Conditioning

4.82(
30
)
Approved Pro
Customers say: True professional
14 local quotes requested
72 years of experience

Atlas Trillo Heating and Air Conditioning dates back to the early 1950's when the Silicon Valley was in its infancy. Atlas Trillo serves both residential and commercial customers with best in energy efficient, environmentally safe equipment and services for your ideal comfort systems. Whether it's a new installation, a retrofit, replacement, duct cleaning, or routine service, our factory-trained mechanics provide the skill and expertise on which your comfort depends.

"The furnace is great, the techs are great, but getting replacement furnace filters, not so much "

Bob D on August 2025

Atlas Trillo Heating and Air Conditioning dates back to the early 1950's when the Silicon Valley was in its infancy. Atlas Trillo serves both residential and commercial customers with best in energy efficient, environmentally safe equipment and services for your ideal comfort systems. Whether it's a new installation, a retrofit, replacement, duct cleaning, or routine service, our factory-trained mechanics provide the skill and expertise on which your comfort depends.

"The furnace is great, the techs are great, but getting replacement furnace filters, not so much "

Bob D on August 2025


Avatar for Ignite HVAC, Inc.

Ignite HVAC, Inc.

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Ignite HVAC, Inc.

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
4 years of experience
Free onsite estimate

Ignite HVAC 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.

Ignite HVAC 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.


Avatar for Comfort Energy, Inc.

Comfort Energy, Inc.

4.63(
209
)
Approved Pro

Comfort Energy, Inc.

4.63(
209
)
Approved Pro
Customers say: Quality work
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
161 local quotes requested

At COMFORT ENERGY, we are a full service team of licensed, highly trained and experienced professional installers and service technicians able to address every need of your commercial and residential heating and cooling needs. With more than 30 years of experience in the field, our staff is able to address everything from a simple service issue to complex integrated systems.

"They sent over a knowledgeable technician who was polite and professional. He was able to diagnose exactly what the problem was and fix it. "

Madhu V on June 2025

At COMFORT ENERGY, we are a full service team of licensed, highly trained and experienced professional installers and service technicians able to address every need of your commercial and residential heating and cooling needs. With more than 30 years of experience in the field, our staff is able to address everything from a simple service issue to complex integrated systems.

"They sent over a knowledgeable technician who was polite and professional. He was able to diagnose exactly what the problem was and fix it. "

Madhu V on June 2025


Avatar for VALLEY COMFORT HEATING AND AIR INC

VALLEY COMFORT HEATING AND AIR INC

5.00(
6
)
Approved Pro

VALLEY COMFORT HEATING AND AIR INC

5.00(
6
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
19 years of experience

Valley Comfort Heating and Air offers heating and air conditioning new unit sales, service, repair, and replacement services. In addition to repairs and installations, we provide tune-ups and air duct cleaning. We are a factory authorized dealer of Bryant heating and air conditioning units, the most trusted name in air conditioning and heating. We serve Sonoma, Napa and Marin Counties.

"Great job performed by Valley Comfort Heating in the installation of air conditioning unit. Timely and professional in all aspects of installation. Workers completed task according to time line and were polite and professional at all times;"

ken m on August 2020

Valley Comfort Heating and Air offers heating and air conditioning new unit sales, service, repair, and replacement services. In addition to repairs and installations, we provide tune-ups and air duct cleaning. We are a factory authorized dealer of Bryant heating and air conditioning units, the most trusted name in air conditioning and heating. We serve Sonoma, Napa and Marin Counties.

"Great job performed by Valley Comfort Heating in the installation of air conditioning unit. Timely and professional in all aspects of installation. Workers completed task according to time line and were polite and professional at all times;"

ken m on August 2020


"Very efficient. Found and fixed the issue quickly"

Carter H on July 2024

Air Concepts Mission Provide professional, trustworthy and responsive service to all of our valued customers.

"Very efficient. Found and fixed the issue quickly"

Carter H on July 2024


Avatar for AirStars Corp.

AirStars Corp.

5.00(
1
)
Approved Pro

AirStars Corp.

5.00(
1
)
Approved Pro
18 years of experience
Free onsite estimate

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Installation - Free Estimates Repair - Not Free

"We recently bought a loft in Oakland which came with a very old furnace that needed to be replaced. Arturo and his crew at Airstars were awesome, very communicative about what needs to happen and they were efficient! They replaced our old furnace fast and left everything super clean. The new unit runs great! Definitely 5 star. "

Nermin S on November 2025

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Installation - Free Estimates Repair - Not Free

"We recently bought a loft in Oakland which came with a very old furnace that needed to be replaced. Arturo and his crew at Airstars were awesome, very communicative about what needs to happen and they were efficient! They replaced our old furnace fast and left everything super clean. The new unit runs great! Definitely 5 star. "

Nermin S on November 2025

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FAQs for furnace / forced air heating system install or replace projects in Redwood City, CA

Pinpointing an HVAC problem often involves several components, heavy equipment, and high-voltage conditions best left to a licensed technician. Instead of guessing, hire a pro who can diagnose the issue and repair it safely. When requesting estimates from HVAC repair companies near you, share detailed notes about the symptoms, ask what the visit covers, and compare at least two or three quotes before making a decision.

With proper upkeep, most HVAC systems last 15 to 25 years. Annual inspections, filter changes, and coil cleanings help ease the strain on key parts and prevent major breakdowns. Staying on a regular maintenance schedule also protects efficiency and indoor air quality, resulting in lower energy bills and fewer unexpected repairs. In short, plan on at least one professional tune-up each year if you want your system to hit that two-decade mark.

Most manufacturers recommend professional service at least once a year, and twice a year if you own a heat pump system that handles both heating and cooling. These tune-ups let a technician test safety controls, check refrigerant levels, and clean components before minor issues snowball into expensive repairs. Sticking to that schedule keeps warranties valid, boosts efficiency, and can extend the system’s lifespan by several years.

Installing a new HVAC system averages $7,500, but the exact figure hinges on the type of equipment you choose and the size of your home. Swapping out just the AC runs roughly $2,200 to $5,500, while a furnace replacement ranges from $3,200 to $6,000. Although that outlay is significant, newer units deliver better performance and energy savings, so you’ll start earning some of the money back on your utility bills.

Expect to spend between $450 and $2,000 to repair existing ductwork, or between $1,200 and $4,500 for a full replacement. More minor fixes—such as patching leaks, adding insulation, or replacing a damaged vent—cost between $200 and $700. Healthy ducts are crucial to proper airflow, so addressing issues promptly helps your HVAC system run efficiently, keeps energy bills in check, and maintains optimal indoor air quality.

The Redwood City, 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.