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  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon75
    Verified energy efficiency auditing services reviews

Find Energy efficiency auditors in Welches

Avatar for HomeRx

HomeRx

4.62(
74
)
Approved Pro

HomeRx

4.62(
74
)
Approved Pro
Super Service Award
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
2013 years of experience

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


Avatar for Ideal Property Inspections LLC

Ideal Property Inspections LLC

4.99(
106
)

Ideal Property Inspections LLC

4.99(
106
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

For the fifth consecutive year, Ideal Property Inspections LLC (IPI) has earned the 2020 Super Service Award for outstanding service. A special Thank You to everyone who graciously submitted a review in praise of IPI. For 2020, Ideal Property Inspections LLC has expanded the number of services offered to include Residential and Commercial Inspections, Radon and Infrared Thermography (coming soon). All inspections conclude with a visual summary and detailed report, with photos within 24 hours of the inspection (commercial inspections make take longer). With over 20 years of remodeling and construction experience, our experience allows us to spot fine details others might miss. Read our reviews for yourself and join the dozens of home buyers who appreciate our outstanding level of professionalism! Member of American Society of Home Inspectors (ASHI) and Oregon Association of Home Inspectors (OAHI). For additional information or to request a quote, call 971-219-0759.

"Roland , I was very thorough doing my home inspection and if I had a question to concerns, he’s able to answer them I would rehire him in a heartbeat"

Amber G on November 2022

For the fifth consecutive year, Ideal Property Inspections LLC (IPI) has earned the 2020 Super Service Award for outstanding service. A special Thank You to everyone who graciously submitted a review in praise of IPI. For 2020, Ideal Property Inspections LLC has expanded the number of services offered to include Residential and Commercial Inspections, Radon and Infrared Thermography (coming soon). All inspections conclude with a visual summary and detailed report, with photos within 24 hours of the inspection (commercial inspections make take longer). With over 20 years of remodeling and construction experience, our experience allows us to spot fine details others might miss. Read our reviews for yourself and join the dozens of home buyers who appreciate our outstanding level of professionalism! Member of American Society of Home Inspectors (ASHI) and Oregon Association of Home Inspectors (OAHI). For additional information or to request a quote, call 971-219-0759.

"Roland , I was very thorough doing my home inspection and if I had a question to concerns, he’s able to answer them I would rehire him in a heartbeat"

Amber G on November 2022


Avatar for Bull Mountain Heating AC & Insulation

Bull Mountain Heating AC & Insulation

4.88(
297
)

Bull Mountain Heating AC & Insulation

4.88(
297
)
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers

Bull Mountain Heating, AC & Insulation is a family owned and operated, full service home performance company working to help clients become more energy efficient. We install, service and maintenance heating and cooling systems of all kinds, makes and models. For residential homes we also have a full insulation division that installs wall, crawlspace and attic materials.

"Truly excellent. Installation of Lennox AC unit. And humidifier. We joined their service club for twice annual maintenance visit. They are very with it. They know your system when you call, and as a service member, you get quick response service. They confirm appointments by text, text you when they are coming and about to arrive. And you cab track the driver. Always knowledgeable service pros when on site with clear explanations of what happened. Pricing seems very good too. I wish all vendors were like this. 5 stars for sure."

Alex M on June 2021

Bull Mountain Heating, AC & Insulation is a family owned and operated, full service home performance company working to help clients become more energy efficient. We install, service and maintenance heating and cooling systems of all kinds, makes and models. For residential homes we also have a full insulation division that installs wall, crawlspace and attic materials.

"Truly excellent. Installation of Lennox AC unit. And humidifier. We joined their service club for twice annual maintenance visit. They are very with it. They know your system when you call, and as a service member, you get quick response service. They confirm appointments by text, text you when they are coming and about to arrive. And you cab track the driver. Always knowledgeable service pros when on site with clear explanations of what happened. Pricing seems very good too. I wish all vendors were like this. 5 stars for sure."

Alex M on June 2021


Avatar for Entek Corporation

Entek Corporation

4.88(
151
)

Entek Corporation

4.88(
151
)
Customers say: Super punctual
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers

Entek Corporation is a locally-owned and operated HVAC company serving SW Washington and the greater Portland area since 1946. We have offices in Longview and Vancouver WA. We provide superior heating, cooling and air quality solutions for home, business, and industry. As Carrier's longest-serving installer in the Northwest, we offer rebates, incentives, and financing as well as a list of eligible tax credits. We never charge to inspect or provide an estimate for new equipment, duct cleaning, duct sealing or home electrical work. *Call us for details. LICENSED, BONDED AND INSURED. 24/7 Service. Guaranteed.

"Scheduling an appointment was easy. Sean came out to check our recently purchased home's heat/cooling system and provided options/recommendations for consideration. He was very knowledgeable and friendly. Highly recommend."

Gabrielle J on May 2022

Entek Corporation is a locally-owned and operated HVAC company serving SW Washington and the greater Portland area since 1946. We have offices in Longview and Vancouver WA. We provide superior heating, cooling and air quality solutions for home, business, and industry. As Carrier's longest-serving installer in the Northwest, we offer rebates, incentives, and financing as well as a list of eligible tax credits. We never charge to inspect or provide an estimate for new equipment, duct cleaning, duct sealing or home electrical work. *Call us for details. LICENSED, BONDED AND INSURED. 24/7 Service. Guaranteed.

"Scheduling an appointment was easy. Sean came out to check our recently purchased home's heat/cooling system and provided options/recommendations for consideration. He was very knowledgeable and friendly. Highly recommend."

Gabrielle J on May 2022


Blairco Inc

4.91(
87
)

Blairco Inc

4.91(
87
)
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers

Locally Owned & Operated since 1987. Let Blairco help find your comfort zone. You'll LOVE our 5 star service! We service and maintain all makes and models. We are a Carrier factory authorized dealer. Award winning. Additional email - [email protected]. Find out why our customers love us, read our reviews.

"We replaced our old furnace with a new high efficiency furnace. Shawn came out and helped us figure what to get and gave us 4 options and estimates for each. We chose the third estimate. We set up the appointment, and set the date. Two men came to our home and did the job of removing our old furnace and AC and installing our new ones. It took 2 1/2 days to do the job and it turned out wonderful. The men were great to work with and did a terrific job. They were very polite and fun and answered all our questions. We have used Blairco for about 30+ years, and they come twice every year and do maintenance on our furnace and AC."

Richard D on April 2024

Locally Owned & Operated since 1987. Let Blairco help find your comfort zone. You'll LOVE our 5 star service! We service and maintain all makes and models. We are a Carrier factory authorized dealer. Award winning. Additional email - [email protected]. Find out why our customers love us, read our reviews.

"We replaced our old furnace with a new high efficiency furnace. Shawn came out and helped us figure what to get and gave us 4 options and estimates for each. We chose the third estimate. We set up the appointment, and set the date. Two men came to our home and did the job of removing our old furnace and AC and installing our new ones. It took 2 1/2 days to do the job and it turned out wonderful. The men were great to work with and did a terrific job. They were very polite and fun and answered all our questions. We have used Blairco for about 30+ years, and they come twice every year and do maintenance on our furnace and AC."

Richard D on April 2024


Avatar for Affordable Home Remodeling

Affordable Home Remodeling

4.81(
178
)

Affordable Home Remodeling

4.81(
178
)
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers

Based in Gresham & Tigard, OR. Service entire PDX Metro. Affordable Home Remodeling specializes in custom replacement window, door, and siding installation. We have our own installation crew of respectful, hard workers. We ask for 40% down payment when a contract is signed and the balance due upon completion of the job. Ask about Angie's List discount. Give us a call for a free estimate! Energy Trust Trade Ally. Award winning.

"Had Affordable Home Remodeling replace several old aluminum windows around our house with modern storm windows. Very knowledgable, and compared to other bids, the price was reasonable. A big plus is they help you with your Oregon energy rebates. Job itself took an extra day due to one supply issues, but not a big deal."

Joseph L on December 2021

Based in Gresham & Tigard, OR. Service entire PDX Metro. Affordable Home Remodeling specializes in custom replacement window, door, and siding installation. We have our own installation crew of respectful, hard workers. We ask for 40% down payment when a contract is signed and the balance due upon completion of the job. Ask about Angie's List discount. Give us a call for a free estimate! Energy Trust Trade Ally. Award winning.

"Had Affordable Home Remodeling replace several old aluminum windows around our house with modern storm windows. Very knowledgable, and compared to other bids, the price was reasonable. A big plus is they help you with your Oregon energy rebates. Job itself took an extra day due to one supply issues, but not a big deal."

Joseph L on December 2021


Avatar for Air Stars Heating & Cooling

Air Stars Heating & Cooling

4.95(
61
)

Air Stars Heating & Cooling

4.95(
61
)
Customers say: Super punctual
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers

Air Stars Heating & Cooling is a provider of home heating and cooling systems. Our focus is to help customers achieve a maximum comfort level, while minimizing energy usage. Our Mission is to be at the forefront of the HVAC industry by continually implementing new ideas and products, and by keeping our employees up to date with continued education and training. By this, we will maintain sustainability, and be able to continue serving our valued customers for many years to come. We offer a 100% Satisfaction Guarantee, extended warranties, and financing is available. Our regular business hours are Mon. through Fri. from 7:00 AM to 5:00 PM, with 24/7/365 emergency service.

"great job got us going"

james i on May 2019

Air Stars Heating & Cooling is a provider of home heating and cooling systems. Our focus is to help customers achieve a maximum comfort level, while minimizing energy usage. Our Mission is to be at the forefront of the HVAC industry by continually implementing new ideas and products, and by keeping our employees up to date with continued education and training. By this, we will maintain sustainability, and be able to continue serving our valued customers for many years to come. We offer a 100% Satisfaction Guarantee, extended warranties, and financing is available. Our regular business hours are Mon. through Fri. from 7:00 AM to 5:00 PM, with 24/7/365 emergency service.

"great job got us going"

james i on May 2019


Balanced Energy Solutions

4.86(
36
)

Balanced Energy Solutions

4.86(
36
)
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers

Balanced Energy Solutions is a small, Portland based consulting and weatherization company owned and operated by Amy & Gregg Robinson. Gregg started Balanced Energy Solutions to create awareness and educate individuals about how the occupants, the materials used to build/improve the home, and the natural environment effect the indoor air quality, comfort, durability and energy use in a dwelling. We currently have a staff of ten, and all weatherization work from test-in to test-out is performed by our small staff. Balanced Energy Solutions offers a variety of options to suit everyone’s immediate budget and long term goals. Oregon CCB# 184628

Balanced Energy Solutions is a small, Portland based consulting and weatherization company owned and operated by Amy & Gregg Robinson. Gregg started Balanced Energy Solutions to create awareness and educate individuals about how the occupants, the materials used to build/improve the home, and the natural environment effect the indoor air quality, comfort, durability and energy use in a dwelling. We currently have a staff of ten, and all weatherization work from test-in to test-out is performed by our small staff. Balanced Energy Solutions offers a variety of options to suit everyone’s immediate budget and long term goals. Oregon CCB# 184628


Avatar for Sensible Energy Solutions

Sensible Energy Solutions

5.00(
14
)

Sensible Energy Solutions

5.00(
14
)
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Sensible Energy Solutions gives homeowners the information and understanding they need to make their homes more confortable, more energy efficient, and more durable. We focus on addressing each customer's priorities and on providing exceptional customer service. We are an Energy Trust of Oregon Trade Ally and a Home Performance with Energy Star® participating contractor.

Sensible Energy Solutions gives homeowners the information and understanding they need to make their homes more confortable, more energy efficient, and more durable. We focus on addressing each customer's priorities and on providing exceptional customer service. We are an Energy Trust of Oregon Trade Ally and a Home Performance with Energy Star® participating contractor.


Avatar for Environmental Works LLC

Environmental Works LLC

4.61(
67
)

Environmental Works LLC

4.61(
67
)
Customers say: Quality work
2008 years of experience

We're innovative, hard working and we get the job done right from the science to the site. From our administration team, to the project managers and field crews, our employees are highly skilled and thoroughly trained professionals. We specialize in air quality testing and mitigation (Radon), underground tank decommissioning, sewer inspection & repair, plumbing services, directional drilling, environmental site assessments and environmental restoration.

"I hired Environmental Works on the recommendation of a co-worker. Not only was it the least expensive of the three bids I received but it was also the only company that offered a lifetime guarantee on its work. The entire installation of a radon mitigation system in my home took less than six hours. The company guarantees that its radon mitigation system can keep radon levels below 2.7 pCi/L. A three-month radon monitoring test, completed ten months after the installation of my mitigation system, indicated radon levels at 1.4 pCi/L. I am very pleased with the work that was performed at my home."

Ken R on March 2020

We're innovative, hard working and we get the job done right from the science to the site. From our administration team, to the project managers and field crews, our employees are highly skilled and thoroughly trained professionals. We specialize in air quality testing and mitigation (Radon), underground tank decommissioning, sewer inspection & repair, plumbing services, directional drilling, environmental site assessments and environmental restoration.

"I hired Environmental Works on the recommendation of a co-worker. Not only was it the least expensive of the three bids I received but it was also the only company that offered a lifetime guarantee on its work. The entire installation of a radon mitigation system in my home took less than six hours. The company guarantees that its radon mitigation system can keep radon levels below 2.7 pCi/L. A three-month radon monitoring test, completed ten months after the installation of my mitigation system, indicated radon levels at 1.4 pCi/L. I am very pleased with the work that was performed at my home."

Ken R on March 2020

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Energy Efficiency Auditing questions, answered by experts

If you have central air conditioning, it’s fine to run your AC all day if that’s what you want—as long as the AC unit is in good condition. But if your AC runs constantly when you don’t want it to, there may be a problem with your system (like the ones we’ve mentioned above). Window AC units and wall air conditioners aren’t as powerful as central AC, so you should only run those kinds of air conditioners for eight to 12 hours at a time.

Window AC units use a fair amount of electricity during use, but the usage pales in comparison to central units. As a matter of fact, window units use around a third of the amount of energy as a central AC. On average, a window air conditioner costs between $15 and $40 per month to run, though this depends on a number of external factors.

Heat pumps transfer existing heat instead of generating it, using less energy. Compared to baseboard heaters, they can reduce heating costs by up to 50% and provide efficient cooling, lowering electricity bills and carbon footprint.

Generator size requirements vary wildly among properties, but typical generator sizes are listed below based on home square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14kW

  • 2,500 sq ft: 12–16kW

  • 3,000 sq ft: 16–20kW+

Unfortunately, home square footage isn’t always a good indicator of generator size requirements. Instead, you should call in a professional to discuss which items in your home you’d like to run via your generator. They can calculate peak and average consumption for those items and then size your generator appropriately for optimal performance.

Costs depend on pipe length, accessibility, and whether additional services are required.

The Welches, 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.

What do you need done? We’ll find top pros.
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