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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon720
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Keizer

Avatar for Allied Mechanical & Plumbing LLC

Allied Mechanical & Plumbing LLC

5.00(
96
)
Approved Pro

Allied Mechanical & Plumbing LLC

5.00(
96
)
Approved Pro
Super Service Award
Customers say: True professional
2 years of experience

With over 20 years of industry experience Allied Mechanical & Plumbing LLC is dedicated to providing our clients with the very best in service, installation, and repair for all phases of your plumbing needs. We specialize in a variety of residential and commercial services and take pride in the attention to detail put into each of the projects we're involved with. Let us help you with - new construction/remodel, plumbing consulting design and layout, gas piping, bath and shower upgrades, water heater and fixture replacement, hydronic heating - contact us today for hourly rates and bids.

"Josh was professional and kind. He had three things to work on and used his time efficiently. He even checked in the next day to make sure I was satisfied. I will call him again when we need help with our well pump filters. I will recommend Josh to anyone needing a plumber."

Kristie O on November 2025

With over 20 years of industry experience Allied Mechanical & Plumbing LLC is dedicated to providing our clients with the very best in service, installation, and repair for all phases of your plumbing needs. We specialize in a variety of residential and commercial services and take pride in the attention to detail put into each of the projects we're involved with. Let us help you with - new construction/remodel, plumbing consulting design and layout, gas piping, bath and shower upgrades, water heater and fixture replacement, hydronic heating - contact us today for hourly rates and bids.

"Josh was professional and kind. He had three things to work on and used his time efficiently. He even checked in the next day to make sure I was satisfied. I will call him again when we need help with our well pump filters. I will recommend Josh to anyone needing a plumber."

Kristie O on November 2025


Avatar for Norse Heating and Air, LLC

Norse Heating and Air, LLC

4.93(
61
)
Approved Pro

Norse Heating and Air, LLC

4.93(
61
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
5 years of experience

Norse Heating and Air is fully licensed, bonded and insured. We offer installation, maintenance and repair of all heating and cooling systems for residential and small commercial applications. We also offer FREE estimates for installing new equipment. Norse Heating takes pride in exceeding customer expectations and doing the job right the first time, so if you want quality service with a smile, give us a call.

"awesome job and got it done fast! Super helpful would recommended to anyone looking for treble shooting issues. He will work on old units not just sell a new one when minor issues go wrong!"

justin l on April 2025

Norse Heating and Air is fully licensed, bonded and insured. We offer installation, maintenance and repair of all heating and cooling systems for residential and small commercial applications. We also offer FREE estimates for installing new equipment. Norse Heating takes pride in exceeding customer expectations and doing the job right the first time, so if you want quality service with a smile, give us a call.

"awesome job and got it done fast! Super helpful would recommended to anyone looking for treble shooting issues. He will work on old units not just sell a new one when minor issues go wrong!"

justin l on April 2025


Avatar for Advantage Heating & Air Conditioning, LLC

Advantage Heating & Air Conditioning, LLC

4.88(
43
)
Approved Pro

Advantage Heating & Air Conditioning, LLC

4.88(
43
)
Approved Pro
Customers say: Quality work
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
28 years of experience

Advantage has been providing heating and cooling to the Willamette Valley for 30 years! We pride ourselves on our consistent training and industry leading technology. Our goal is to make a positive impact on our community. We aim to do that in a number of ways: such as providing peace of mind with our 20-Year-Parts-and-Labor warranty, or providing comfort with our Smart Systems that provide unparalleled comfort while being simple to use. We also offer affordable financing options, so you can keep your home warm without breaking the bank.

"They did a professional job. Always used foot covers and floors coverings. Cleaned and removed old unit. Installation was completed In a timely manner."

Bill B on January 2024

Advantage has been providing heating and cooling to the Willamette Valley for 30 years! We pride ourselves on our consistent training and industry leading technology. Our goal is to make a positive impact on our community. We aim to do that in a number of ways: such as providing peace of mind with our 20-Year-Parts-and-Labor warranty, or providing comfort with our Smart Systems that provide unparalleled comfort while being simple to use. We also offer affordable financing options, so you can keep your home warm without breaking the bank.

"They did a professional job. Always used foot covers and floors coverings. Cleaned and removed old unit. Installation was completed In a timely manner."

Bill B on January 2024


Avatar for Henco Plumbing

Henco Plumbing

4.72(
144
)
Approved Pro

Henco Plumbing

4.72(
144
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
13 years of experience

Henco Plumbing Services proudly serves its customers with care, integrity and attention to the details that matter most to you. This is one of the many things that set us apart from the rest. Give us a call today! WA Plumbing: HENCOP*7829O ∣ WA GC: HENCOP*782RO ∣ OR Plumbing: PD2795 ∣ OR GC: C1761 ∣ OR CCB: 240516

"Great company to work with. Cody was Efficient, on time, explained the repairs and the cost and got right to work. Done in less than an hour. Highly recommend"

Jenny M on June 2025

Henco Plumbing Services proudly serves its customers with care, integrity and attention to the details that matter most to you. This is one of the many things that set us apart from the rest. Give us a call today! WA Plumbing: HENCOP*7829O ∣ WA GC: HENCOP*782RO ∣ OR Plumbing: PD2795 ∣ OR GC: C1761 ∣ OR CCB: 240516

"Great company to work with. Cody was Efficient, on time, explained the repairs and the cost and got right to work. Done in less than an hour. Highly recommend"

Jenny M on June 2025


"ACS installed a new Bryant heat pump + furnace. The equipment is high quality and the team was knowledgeable, flexible, and willing to answer all my questions. They accommodated a change in scope on the day of install from just installing a heat pump to installing a furnace + heat pump combo. This set the team back a few hours for the last minute parts request, but they powered through a very long day and stayed until the job was finished. All customer service goes directly through the owner operator. Originally this seemed like a plus, but I think they would benefit from support staff. I needed to edit and downgrade this review after a few negative experiences. Some changes are related to issues noticed after the install. The unit was not secured to the pad outdoors and also was not attached to the house. Holes cut into the corner of the garage slab in order to pass through the lines were not patched, leaving a break in the envelope. Mark promised to follow up on both of these, but he did not send anyone out to take care of this. Mark also directly promised that our install would qualify for Energy Trust of Oregon incentives for $3000, when in fact it is clear after speaking directly with Energy Trust representatives that our install did not qualify for any amount of rebate. This promise was echoed throughout the quote and the install process. I believe that the lack of a support staff is causing some shortcutting or disorganization when it comes to managing some of these details - I would prefer to assume that ACS did not know the details of the incentive rather than that they purposefully deceived me, but I dont feel comfortable recommending them given these circumstances."

Sam C on July 2024

"ACS installed a new Bryant heat pump + furnace. The equipment is high quality and the team was knowledgeable, flexible, and willing to answer all my questions. They accommodated a change in scope on the day of install from just installing a heat pump to installing a furnace + heat pump combo. This set the team back a few hours for the last minute parts request, but they powered through a very long day and stayed until the job was finished. All customer service goes directly through the owner operator. Originally this seemed like a plus, but I think they would benefit from support staff. I needed to edit and downgrade this review after a few negative experiences. Some changes are related to issues noticed after the install. The unit was not secured to the pad outdoors and also was not attached to the house. Holes cut into the corner of the garage slab in order to pass through the lines were not patched, leaving a break in the envelope. Mark promised to follow up on both of these, but he did not send anyone out to take care of this. Mark also directly promised that our install would qualify for Energy Trust of Oregon incentives for $3000, when in fact it is clear after speaking directly with Energy Trust representatives that our install did not qualify for any amount of rebate. This promise was echoed throughout the quote and the install process. I believe that the lack of a support staff is causing some shortcutting or disorganization when it comes to managing some of these details - I would prefer to assume that ACS did not know the details of the incentive rather than that they purposefully deceived me, but I dont feel comfortable recommending them given these circumstances."

Sam C on July 2024


Avatar for Roth Home

Roth Home

4.63(
213
)
Approved Pro

Roth Home

4.63(
213
)
Approved Pro
Super Service Award
Customers say: Super punctual
49 years of experience
Emergency services offered

Since 1976, Roth Home has been committed to one thing: providing the very best heating, cooling, plumbing, electrical, and drain services in the greater Portland area, coupled with truly outstanding customer care. Throughout the decades, we’ve been helping residential and commercial customers throughout the region achieve the comfort and safety they need. The Roth team goes above and beyond for every customer, offering custom solutions and fast, honest repairs when you need them most. We’re even available for 24/7 emergency services! As a full-service heating, cooling, plumbing, and electrical company in Portland and serving the entire region, Roth Home has what it takes to tackle any home service problem. From new water heater installation to furnace repairs to AC replacement, drain cleaning, whole home repiping, electrical panel upgrades, new lighting installation, and more, we can help ensure that your home or business is in tip-top shape. With Roth, one call does it all! Find out more about our comprehensive range of services, or request your appointment today when you call our friendly and professional team!

"Very knowledgeable and profesional."

Rolando M on December 2025

Since 1976, Roth Home has been committed to one thing: providing the very best heating, cooling, plumbing, electrical, and drain services in the greater Portland area, coupled with truly outstanding customer care. Throughout the decades, we’ve been helping residential and commercial customers throughout the region achieve the comfort and safety they need. The Roth team goes above and beyond for every customer, offering custom solutions and fast, honest repairs when you need them most. We’re even available for 24/7 emergency services! As a full-service heating, cooling, plumbing, and electrical company in Portland and serving the entire region, Roth Home has what it takes to tackle any home service problem. From new water heater installation to furnace repairs to AC replacement, drain cleaning, whole home repiping, electrical panel upgrades, new lighting installation, and more, we can help ensure that your home or business is in tip-top shape. With Roth, one call does it all! Find out more about our comprehensive range of services, or request your appointment today when you call our friendly and professional team!

"Very knowledgeable and profesional."

Rolando M on December 2025


V & E CONSTRUCTION CORP

5.00(
17
)
Approved Pro

V & E CONSTRUCTION CORP

5.00(
17
)
Approved Pro
Customers say: Quick response
2 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.

"This company was referred to us by a co-worker. We had 4 separate units that needed repair on our commercial building. The service was fast, professional, and courteous. Most important, the price was very reasonable! I will continue to use V & E for any future HVAC issues and would highly recommend this company to troubleshoot HVAC repairs! "

S T on November 2025

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.

"This company was referred to us by a co-worker. We had 4 separate units that needed repair on our commercial building. The service was fast, professional, and courteous. Most important, the price was very reasonable! I will continue to use V & E for any future HVAC issues and would highly recommend this company to troubleshoot HVAC repairs! "

S T on November 2025


Avatar for Ace Handyman Services

Ace Handyman Services

4.65(
463
)
Approved Pro

Ace Handyman Services

4.65(
463
)
Approved Pro
Customers say: Super punctual
15 years of experience
Warranties offered

We are happy to provide handyman, home repair and home improvement services to the broader Portland area - from Oregon City to Scappose and Forest Grove to Gresham, including Lake Oswego, West Linn, Beaverton, and all areas of Portland. Our specialty is anything in and around the home (or business) that takes between two hours and two days to complete. We offer free over-the-phone estimates and firm appointment times to save you time, all our handymen are licensed, bonded, and ensured as our employees, and we guarantee our work for a year.

"I've used Ace Handyman for several years now. Their work is excellent and very professional."

Kumar V on October 2025

We are happy to provide handyman, home repair and home improvement services to the broader Portland area - from Oregon City to Scappose and Forest Grove to Gresham, including Lake Oswego, West Linn, Beaverton, and all areas of Portland. Our specialty is anything in and around the home (or business) that takes between two hours and two days to complete. We offer free over-the-phone estimates and firm appointment times to save you time, all our handymen are licensed, bonded, and ensured as our employees, and we guarantee our work for a year.

"I've used Ace Handyman for several years now. Their work is excellent and very professional."

Kumar V on October 2025


"Very efficient, courteous, knowledgeable. Just all around great customer service and products."

D+J B on November 2022

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!

"Very efficient, courteous, knowledgeable. Just all around great customer service and products."

D+J B on November 2022


"great job i was pleased "

Ellen M on December 2025

Evergreen Plumbing and Mechanical provides full service whenever our crew comes out to a customer’s home. Being family-owned and operated for the last 20 years, dependable and prompt service our customers can count on is the Evergreen way.

"great job i was pleased "

Ellen M on December 2025

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Heating and Air Conditioning questions, answered by experts

You may be able to clean mold from your air conditioner in some cases. If the mold growth only takes up a small area, you can use either vinegar or bleach mixed with water to remove it. Larger areas of mold should be left to the professionals, though. It's also a good idea to leave mold removal to the pros if you are sensitive to mold or have asthma. 

To reset your air conditioner, start by turning it off at the thermostat. Then, shut off power to the AC system at the circuit breaker. Next, find the “reset” button on your AC unit and hold it for three to five seconds. The unit should beep several times. If your air conditioner doesn’t have a reset button, leave the circuit breaker off for 30 minutes. Afterward, turn the power back on at the breaker and program the thermostat to “cool” to test the system.

A new HVAC system can add 5% to 7% to your home’s value, especially if you upgrade the entire system, including ductwork and insulation. In total, these upgrades could bring around a 30% return on investment (ROI). Add a smart home thermostat, and your home’s value could increase because the heating and cooling systems are more modern, efficient, and convenient.

Yes, having mismatched evaporator and condenser coils in your AC system can lead to serious issues. For instance, it can result in higher monthly energy costs as the system runs longer to compensate for the mismatch. This mismatch can also put extra stress on the system, compromising its efficiency and longevity. 

Along with that, mismatched coils can lead to higher temperatures and humidity levels in the home. What’s more, using coils of different sizes may violate the manufacturer's warranty, as they are designed to work synergistically, and any mismatch could lead to repairs and system failure.

If you have the luxury of waiting a bit to replace your unit, they can drop in price depending on the time of year. Air conditioning units often go on sale in the fall after they’re not as in demand when the temps drop outside. Same with furnaces—prices drop in the spring when it starts getting warmer.

The Keizer, OR homeowners’ guide to heating and air conditioning services

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

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