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  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon105
    Verified energy efficiency auditing services reviews

Find Energy efficiency auditors in Lake Oswego

Avatar for Specialty Heating & Cooling LLC

Specialty Heating & Cooling LLC

7233 SW Kable Lane
4.83(
592
)
Approved Pro

Specialty Heating & Cooling LLC

7233 SW Kable Lane
4.83(
592
)
Approved Pro
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
163 local quotes requested

Super Service Award winner 18 years in a row 2006-2022. Located in Tigard, Oregon, Specialty Heating & Cooling is dedicated to your comfort. Since 1985, we have seen our client base grow exponentially by word of mouth, and are proud to have served so many families throughout the area! We specialize in the following: • 24/7 Service and repair on all brands furnaces, air conditioners and heat pumps • Furnace, Heat Pump, Air Conditioner Installations • Ductless Mini-Split Heat Pumps • Indoor Air Quality Solutions • Duct Cleaning • Free In home Consultations • Home Performance Testing • Residential and Light Commercial Your comfort and peace of mind are the center of everything we do. With so much experience under our belt, we know what it takes to be able to achieve our ultimate goal of receiving 100% customer satisfaction from all of our customers. Made up of a very diverse group of skilled professionals, our company specializes in residential retro-fit solutions for all vintages of homes. Our team is experienced, friendly, and professional. Our aspiration is to not just meet, but to exceed your expectations with our superb products, talented staff, and exceptional services. Call us today, our goal is the 100% satisfaction of our clients!

"Quickly figured out that problem was a frozen drain pipe causing its sensor to shut down the furnace. Fixed with a temporary drain tube replacement to a bucket below. BRILLIANT!!! Very satisfied. Even showed me how to reconnect when the main drain tube thaws out so I can save another service call."

Ed K on January 2024

Super Service Award winner 18 years in a row 2006-2022. Located in Tigard, Oregon, Specialty Heating & Cooling is dedicated to your comfort. Since 1985, we have seen our client base grow exponentially by word of mouth, and are proud to have served so many families throughout the area! We specialize in the following: • 24/7 Service and repair on all brands furnaces, air conditioners and heat pumps • Furnace, Heat Pump, Air Conditioner Installations • Ductless Mini-Split Heat Pumps • Indoor Air Quality Solutions • Duct Cleaning • Free In home Consultations • Home Performance Testing • Residential and Light Commercial Your comfort and peace of mind are the center of everything we do. With so much experience under our belt, we know what it takes to be able to achieve our ultimate goal of receiving 100% customer satisfaction from all of our customers. Made up of a very diverse group of skilled professionals, our company specializes in residential retro-fit solutions for all vintages of homes. Our team is experienced, friendly, and professional. Our aspiration is to not just meet, but to exceed your expectations with our superb products, talented staff, and exceptional services. Call us today, our goal is the 100% satisfaction of our clients!

"Quickly figured out that problem was a frozen drain pipe causing its sensor to shut down the furnace. Fixed with a temporary drain tube replacement to a bucket below. BRILLIANT!!! Very satisfied. Even showed me how to reconnect when the main drain tube thaws out so I can save another service call."

Ed K on January 2024


Avatar for Revival Energy LLC

Revival Energy LLC

10013 NE Hazel Dell Ave
4.74(
587
)
Approved Pro

Revival Energy LLC

10013 NE Hazel Dell Ave
4.74(
587
)
Approved Pro
Customers say: Super punctual
91 local quotes requested
17 years of experience

At Revival Heating & Cooling, we believe your home deserves more than just a quick fix—it deserves true comfort, tailored to you. For over 17 years, we’ve been transforming homes across the greater Portland and Vancouver areas with a holistic approach to heating and cooling. Instead of just swapping out systems or upsizing equipment, we analyze your home’s unique needs to optimize airflow, energy efficiency, and overall comfort. Our solutions save you money, extend equipment life, and create a cozy, balanced environment you’ll love. Our expert team is dedicated to getting it right, treating every project with precision and care. We’re not here to sell you a bigger system; we’re here to craft lasting comfort and build relationships you can trust. From thoughtful design to responsive service, we treat your home like our own. Ready for a smarter, more comfortable home? Let's Revive your existing system or bring new life to back to your home together with Revival.

"Terrible company that fights with its customers vs. taking ownership of their mistakes. I dealt with Rob, the owner, because the furnace they installed didn’t fit where the old u it was. Also, my 2nd furnace mysteriously lost power to at the same time my new furnace was installed, yet they claim they have absolutely nothing to do with it. The owner bullied me for full payment, claiming breach of contract if I didn’t pay in full, even though the job was done poorly, the furnace closet door won’t close and my other furnace doesn’t work. Looking at his Yelp reviews, you can see that other customers have been bullied as well. The technicians are nice, but the owner will always deny any wrongdoing on their part. I had to pay in full and now am hiring other vendors to fix Revival’s issues."

Ryan H on August 2025

At Revival Heating & Cooling, we believe your home deserves more than just a quick fix—it deserves true comfort, tailored to you. For over 17 years, we’ve been transforming homes across the greater Portland and Vancouver areas with a holistic approach to heating and cooling. Instead of just swapping out systems or upsizing equipment, we analyze your home’s unique needs to optimize airflow, energy efficiency, and overall comfort. Our solutions save you money, extend equipment life, and create a cozy, balanced environment you’ll love. Our expert team is dedicated to getting it right, treating every project with precision and care. We’re not here to sell you a bigger system; we’re here to craft lasting comfort and build relationships you can trust. From thoughtful design to responsive service, we treat your home like our own. Ready for a smarter, more comfortable home? Let's Revive your existing system or bring new life to back to your home together with Revival.

"Terrible company that fights with its customers vs. taking ownership of their mistakes. I dealt with Rob, the owner, because the furnace they installed didn’t fit where the old u it was. Also, my 2nd furnace mysteriously lost power to at the same time my new furnace was installed, yet they claim they have absolutely nothing to do with it. The owner bullied me for full payment, claiming breach of contract if I didn’t pay in full, even though the job was done poorly, the furnace closet door won’t close and my other furnace doesn’t work. Looking at his Yelp reviews, you can see that other customers have been bullied as well. The technicians are nice, but the owner will always deny any wrongdoing on their part. I had to pay in full and now am hiring other vendors to fix Revival’s issues."

Ryan H on August 2025


Avatar for Precision Air

Precision Air

5305 NE 121st Ave
4.00(
5
)
Approved Pro

Precision Air

5305 NE 121st Ave
4.00(
5
)
Approved Pro
Customers say: Quick response
39 local quotes requested
73 years of experience

Proudly serving the greater Portland and Clark County area since 1952. Our expert technicians install and service the latest in HVAC technology. Call (360) 835-3121 now for an estimate and ask about energy rebates. After hour service available - are technicians are on standby to help you!

"made an appointment because the price quoted to me to diagnose my issue was $89 plus tax, if any repairs are made that would be additional. technician spent 15 min in attic to determine nothing was wrong and then spent remaining time speculating what it could be. After all was said and nothing done my bill came to $307. Technician indicated that it was an extended diagnostic visit. I was shocked and appalled! No tools were used, no repairs were done just the technician speculating on my dime. Contacted the main office and Eva said she would refund me $89 by check. It's gouging and dishonest. If I had known i was being charged by the hour, I guarantee he would have been out of my house 20 mins after he arrived. Im considering contacting the BBB and the attorney general if this is not resolved satisfactorily. I have no problem paying the diagnostics charge of $89 plus tax but not the extended portion."

Mary S on February 2020

Proudly serving the greater Portland and Clark County area since 1952. Our expert technicians install and service the latest in HVAC technology. Call (360) 835-3121 now for an estimate and ask about energy rebates. After hour service available - are technicians are on standby to help you!

"made an appointment because the price quoted to me to diagnose my issue was $89 plus tax, if any repairs are made that would be additional. technician spent 15 min in attic to determine nothing was wrong and then spent remaining time speculating what it could be. After all was said and nothing done my bill came to $307. Technician indicated that it was an extended diagnostic visit. I was shocked and appalled! No tools were used, no repairs were done just the technician speculating on my dime. Contacted the main office and Eva said she would refund me $89 by check. It's gouging and dishonest. If I had known i was being charged by the hour, I guarantee he would have been out of my house 20 mins after he arrived. Im considering contacting the BBB and the attorney general if this is not resolved satisfactorily. I have no problem paying the diagnostics charge of $89 plus tax but not the extended portion."

Mary S on February 2020


Avatar for Glacier Hvac/r LLC

Glacier Hvac/r LLC

Clackamas And Multnomah
5.00(
8
)
Approved Pro

Glacier Hvac/r LLC

Clackamas And Multnomah
5.00(
8
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
22 local quotes requested

Glacier HVAC/R is a small family owned business located in Estacada, Oregon. With twenty years of experience, our goal is to accommodate heating and air conditioning at affordable prices. We service Clackamas, Multnomah and neighboring counties.

"From beginning to end these guys were a genuine pleasure to work with. Honest, extremely competent, and just nice guys! Reminds me of the way business used to be done in this country! High recommended!!!"

Daniel J on September 2024

Glacier HVAC/R is a small family owned business located in Estacada, Oregon. With twenty years of experience, our goal is to accommodate heating and air conditioning at affordable prices. We service Clackamas, Multnomah and neighboring counties.

"From beginning to end these guys were a genuine pleasure to work with. Honest, extremely competent, and just nice guys! Reminds me of the way business used to be done in this country! High recommended!!!"

Daniel J on September 2024


Avatar for HomeRx

HomeRx

13939 SW Tualatin-Sherwood Rd
4.62(
74
)
Approved Pro

HomeRx

13939 SW Tualatin-Sherwood Rd
4.62(
74
)
Approved Pro
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
121 local quotes requested

HomeRx is an affordable, family-owned, full-service insulation and energy audit company. We offer a wide range of weatherization services that will fit your needs and budget. We work with Energy Trust of Oregon, Clark Public Utilities, and other regional utility programs to help you take advantage of incentives that lower your costs. Whenever possible, we apply those incentives at the time of purchase and take ownership of the paperwork and waiting involved with reimbursements. Plus, we provide any documentation you need to claim additional state and federal tax credits that further offset the cost of the project. Our installation crews are skillfully qualified with multiple weatherization and safety certifications. Call today and schedule a free home assessment by one of our energy experts and receive an itemized bid focusing on lowering energy costs and improving overall home comfort. Affordable, Professional, Experienced, and Performance you can trust. Thank you for your interest.

"HomeRx’s sales rep, Bryant, came to assess the attic and crawl space in an older home I purchased. His kind, calm manner of explaining what I needed and how HomeRx would remediate it was reassuring. He told me HomeRx and Energy Trust of Oregon are in a partnership. When I learned I qualified for an ETO rebate, it was so much more generous than I’d expected! HomeRx’s expertise, along with their care, flowed from beginning to end. When I called/visited the office, I felt truly valued as a customer. Alma, Taylor, Samual, Jennifer, Kimberly, and Adan each explained what I needed to know from their unique area of expertise! If there was a glitch, it was fixed to their standards. When I met Jose, HomeRx president, I felt his leadership had a genuinely heartfelt foundation, whether it was in his care for me, his customer, or in his manner of relating with his HomeRx’s teams. I highly recommend HomeRx for any service they offer that meets your needs. You can’t go wrong. "

Gaylie C on July 2025

HomeRx is an affordable, family-owned, full-service insulation and energy audit company. We offer a wide range of weatherization services that will fit your needs and budget. We work with Energy Trust of Oregon, Clark Public Utilities, and other regional utility programs to help you take advantage of incentives that lower your costs. Whenever possible, we apply those incentives at the time of purchase and take ownership of the paperwork and waiting involved with reimbursements. Plus, we provide any documentation you need to claim additional state and federal tax credits that further offset the cost of the project. Our installation crews are skillfully qualified with multiple weatherization and safety certifications. Call today and schedule a free home assessment by one of our energy experts and receive an itemized bid focusing on lowering energy costs and improving overall home comfort. Affordable, Professional, Experienced, and Performance you can trust. Thank you for your interest.

"HomeRx’s sales rep, Bryant, came to assess the attic and crawl space in an older home I purchased. His kind, calm manner of explaining what I needed and how HomeRx would remediate it was reassuring. He told me HomeRx and Energy Trust of Oregon are in a partnership. When I learned I qualified for an ETO rebate, it was so much more generous than I’d expected! HomeRx’s expertise, along with their care, flowed from beginning to end. When I called/visited the office, I felt truly valued as a customer. Alma, Taylor, Samual, Jennifer, Kimberly, and Adan each explained what I needed to know from their unique area of expertise! If there was a glitch, it was fixed to their standards. When I met Jose, HomeRx president, I felt his leadership had a genuinely heartfelt foundation, whether it was in his care for me, his customer, or in his manner of relating with his HomeRx’s teams. I highly recommend HomeRx for any service they offer that meets your needs. You can’t go wrong. "

Gaylie C on July 2025


Landry's Home Energy Solutions

Based In
1.00(
1
)

Landry's Home Energy Solutions

Based In
1.00(
1
)
1 years of experience

Protect your home from the risks caused by sudden power outages with a generator from Generac, the industry leader, installed by the experts at Landry's Home Energy Solutions. In the event of a power failure, these reliable systems automatically start up, supplying electricity to your home until the local power utility restores service. Permanent installation of a standby generator is not a do-it-yourself project. Landry's Home Energy Solutions has factory-trained technicians who meet Generac's high standards for service and customer satisfaction. Our service professionals meet warranty conditions, ensure safe and proper operation, and are always here to provide Emergency Assistance, 7 days a week. We dispatch technicians quickly, and our team is equipped to resolve most repairs right then and there.

"We contacted Tom Landry for a warranty repair of our brand new generator after being directed by Generac that this was how warranty claims had to be made. He was very friendly on the phone and in person. We discussed the problem with the generator and he implied that he would go to bat for us with Generac's warranty department. He replaced the control panel and left, never once mentioning that we would be expected to pay anything. Within a few hours of leaving our house he sent a bill for a $600 part and $400 labor. I called him and he essentially said, "you didn't buy it from me, I don't own you anything" while refusing to even try to get the repair covered by warranty. He became rude, called me cheap, and threatened to remove the part if we didn't pay the bill immediately. I then called Generac who said that he should have filed a claim for us. We filed a complaint with Generac and are waiting to hear if they will cover the warranty in any way. Bottom line: Tom Landry deceived us, insulted us, and threatened us. He is highly unethical and can not be trusted. Do not do business with this person."

Tony P on December 2024

Protect your home from the risks caused by sudden power outages with a generator from Generac, the industry leader, installed by the experts at Landry's Home Energy Solutions. In the event of a power failure, these reliable systems automatically start up, supplying electricity to your home until the local power utility restores service. Permanent installation of a standby generator is not a do-it-yourself project. Landry's Home Energy Solutions has factory-trained technicians who meet Generac's high standards for service and customer satisfaction. Our service professionals meet warranty conditions, ensure safe and proper operation, and are always here to provide Emergency Assistance, 7 days a week. We dispatch technicians quickly, and our team is equipped to resolve most repairs right then and there.

"We contacted Tom Landry for a warranty repair of our brand new generator after being directed by Generac that this was how warranty claims had to be made. He was very friendly on the phone and in person. We discussed the problem with the generator and he implied that he would go to bat for us with Generac's warranty department. He replaced the control panel and left, never once mentioning that we would be expected to pay anything. Within a few hours of leaving our house he sent a bill for a $600 part and $400 labor. I called him and he essentially said, "you didn't buy it from me, I don't own you anything" while refusing to even try to get the repair covered by warranty. He became rude, called me cheap, and threatened to remove the part if we didn't pay the bill immediately. I then called Generac who said that he should have filed a claim for us. We filed a complaint with Generac and are waiting to hear if they will cover the warranty in any way. Bottom line: Tom Landry deceived us, insulted us, and threatened us. He is highly unethical and can not be trusted. Do not do business with this person."

Tony P on December 2024


RSS Solar

Aurora Ave.
No reviews yet

RSS Solar

Aurora Ave.
No reviews yet
Free onsite estimate

We make solar simple-- We are dedicated to making solar energy affordable and accessible to everyone-- with ZERO upfront costs.* Your home can become its own tiny power station and generate plenty of reliable energy, all while reducing your electricity bill. Plus, it doesn't hurt that your greener lifestyle will help your state achieve its renewable energy goals.

We make solar simple-- We are dedicated to making solar energy affordable and accessible to everyone-- with ZERO upfront costs.* Your home can become its own tiny power station and generate plenty of reliable energy, all while reducing your electricity bill. Plus, it doesn't hurt that your greener lifestyle will help your state achieve its renewable energy goals.


Prime Heating & Cooling

5.00(
4
)

Prime Heating & Cooling

5.00(
4
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

As a locally-owned and operated company, our top priority at Prime Heating & Cooling is to provide every customer with a great experience. Our talented and well-trained team of technicians complete each job with a positive attitude, always making sure to leave the site clean and ready for use. All of our work comes with our 100% Satisfaction Guarantee. We pride ourselves on offering 24/7 emergency services for your heating and cooling needs. A helpful technician is waiting to assist you any day of the year. Prime Heating & Cooling is bonded and insured.

"The service was really good. They were the only AC company I'll use. I would rate them an A+."

Shaker B on January 2021

As a locally-owned and operated company, our top priority at Prime Heating & Cooling is to provide every customer with a great experience. Our talented and well-trained team of technicians complete each job with a positive attitude, always making sure to leave the site clean and ready for use. All of our work comes with our 100% Satisfaction Guarantee. We pride ourselves on offering 24/7 emergency services for your heating and cooling needs. A helpful technician is waiting to assist you any day of the year. Prime Heating & Cooling is bonded and insured.

"The service was really good. They were the only AC company I'll use. I would rate them an A+."

Shaker B on January 2021


Trusted Choice Heating & Cooling

15740 Harley Ave
5.00(
5
)

Trusted Choice Heating & Cooling

15740 Harley Ave
5.00(
5
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

GUARANTEED service within 48 hours! We are a small family owned heating and cooling business that strives to be fair and honest with every customer. Our goal is to treat everyone like family and give them the best deal possible while still providing quality repairs.

"Brandon, the service tech, was so professional and honest with every step of the process. My furnace suddenly went out in the morning and by the time I got home in the evening my house was COLD. I called Trusted Choice first and Brandon was the one to answer. He came over right away was able to service my unit and had the heat running again quickly. There prices were reasonable but the level of service and kindness was priceless. Will be recommending this company to all my friends and family. Thank you!"

Holli L on December 2019

GUARANTEED service within 48 hours! We are a small family owned heating and cooling business that strives to be fair and honest with every customer. Our goal is to treat everyone like family and give them the best deal possible while still providing quality repairs.

"Brandon, the service tech, was so professional and honest with every step of the process. My furnace suddenly went out in the morning and by the time I got home in the evening my house was COLD. I called Trusted Choice first and Brandon was the one to answer. He came over right away was able to service my unit and had the heat running again quickly. There prices were reasonable but the level of service and kindness was priceless. Will be recommending this company to all my friends and family. Thank you!"

Holli L on December 2019


Sundrenched News

5200 Meadows Rd
No reviews yet

Sundrenched News

5200 Meadows Rd
No reviews yet

Sundrenched News is journalism that delivers the latest solar news and renewable energy innovation pertaining to climate change, social justice, and shifting the world from dirty energy to clean energy. We are a voice for organizations, people, and technology in solar and other renewable energies that advance our global society toward a thriving, just, and sustainable planet for all.

Sundrenched News is journalism that delivers the latest solar news and renewable energy innovation pertaining to climate change, social justice, and shifting the world from dirty energy to clean energy. We are a voice for organizations, people, and technology in solar and other renewable energies that advance our global society toward a thriving, just, and sustainable planet for all.

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Energy Efficiency Auditing questions, answered by experts

Services by electricians can quickly get expensive, but there are a few ways you can save money in the process:

  • Bundle multiple jobs done at the same time to save on trip fees or flat fees for individual projects.

  • Get at least three quotes for service to find the best deal.

  • Buy fixtures, switches, outlets, and other materials beforehand to avoid product markup.

  • If you feel comfortable with it, have an apprentice or journeyman complete the work under the supervision of a master electrician. These electricians in training tend to charge less per project.

If you install LED bulbs, they will use much less energy than incandescent bulbs. LED light strips also use less power. Battery-operated puck lights use no electricity at all, but you will need to replace the batteries as needed. They are beneficial if your power goes out, too, as they will remain on as a light source. 

Audits include inspecting insulation, HVAC systems, windows, and appliances to identify energy inefficiencies.

The number one culprit of high energy bills is older appliances, especially fridges and freezers that are left on all the time. These two appliances tend to last a long time, which is good, but it also means that newer models are usually significantly more energy-efficient due to upgraded technology. The second most common reason for a high bill is heating and air conditioning.

There are several indications of an overloaded electrical panel, such as frequent circuit breaker tripping, burn marks, or flickering or dimming lights.

If you’re observing any warning signs, turn the circuit breaker off, then shift some devices from the overloaded circuit to a different one. If there are still signs of overload after turning the circuit break back on, contact a professional electrician to help you fix the issue.

By submitting this question, I acknowledge and agree that Angi may publicly display my name, city, state, and question on the website for professionals and others to see.

The Lake Oswego, OR homeowners’ guide to energy efficiency auditing services

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