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Avatar for GreenSavers USA, Inc.

GreenSavers USA, Inc.

4.65(
10
)
Approved Pro

GreenSavers USA, Inc.

4.65(
10
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
19 years of experience

Founded in 2007, GreenSavers is a mission-driven contractor committed to helping people save energy. Start with a home energy audit or estimate for efficient HVAC, insulation, or Milgard windows. GreenSavers stands out as a Certified B Corporation™ and eight-time winner of the U.S. DOE’s ENERGY STAR® Contractor of the Year Award.

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Donna L on February 2020

Founded in 2007, GreenSavers is a mission-driven contractor committed to helping people save energy. Start with a home energy audit or estimate for efficient HVAC, insulation, or Milgard windows. GreenSavers stands out as a Certified B Corporation™ and eight-time winner of the U.S. DOE’s ENERGY STAR® Contractor of the Year Award.

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Donna L on February 2020


Pyramid Heating & Cooling

5.00(
3
)
Approved Pro

Pyramid Heating & Cooling

5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
22 years of experience

With a mission to enhance the lives of others through indoor comfort, Pyramid Heating & Cooling is Portland’s top choice for high-quality heating, air conditioning, and air quality solutions. Our technicians are experts in the field, handing virtually any system makes and models and treating all customers with the care and integrity they deserve. We are also dedicated to building strong relationships with every person we work with, from our employees to our vendors and customers, through trust, respect, quality, and old-fashioned values.

"The service was good. The guy was prompt, recommended some solutions, and didn't try to upsell us."

John G on February 2022

With a mission to enhance the lives of others through indoor comfort, Pyramid Heating & Cooling is Portland’s top choice for high-quality heating, air conditioning, and air quality solutions. Our technicians are experts in the field, handing virtually any system makes and models and treating all customers with the care and integrity they deserve. We are also dedicated to building strong relationships with every person we work with, from our employees to our vendors and customers, through trust, respect, quality, and old-fashioned values.

"The service was good. The guy was prompt, recommended some solutions, and didn't try to upsell us."

John G on February 2022


Avatar for GreenSavers

GreenSavers

5.00(
23
)

GreenSavers

5.00(
23
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Founded in 2007, GreenSavers is a mission-driven contractor committed to helping people save energy. Start with a home energy audit or free estimate for efficient HVAC, insulation, or Milgard windows. GreenSavers stands out as a Certified B Corporation™ and multi-year winner of the U.S. DOE’s ENERGY STAR® Contractor of the Year Award.

"They had to reschedule our appointment, but were very responsive and prompt in getting us rebooked for another date. When they came to install the unit, they were very professional, did a great job, and left the work space clean and tidy. We were very pleased with the service."

Talia C on June 2022

Founded in 2007, GreenSavers is a mission-driven contractor committed to helping people save energy. Start with a home energy audit or free estimate for efficient HVAC, insulation, or Milgard windows. GreenSavers stands out as a Certified B Corporation™ and multi-year winner of the U.S. DOE’s ENERGY STAR® Contractor of the Year Award.

"They had to reschedule our appointment, but were very responsive and prompt in getting us rebooked for another date. When they came to install the unit, they were very professional, did a great job, and left the work space clean and tidy. We were very pleased with the service."

Talia C on June 2022


Avatar for Elemental Energy

Elemental Energy

5.00(
6
)

Elemental Energy

5.00(
6
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Elemental Energy is a highly experienced solar PV design and installation firm for residential and commercial clients throughout Oregon and Southern Washington. Locally owned and operated right here in Portland, we pride ourselves on providing creative solutions to your home or business energy needs, and aim to make the process of going solar simple and efficient.

"We had our house reroofed in January 2025. I got several bids, all came in about the same cost. We ended up selecting Elemental based on their knowledge of our existing system (Enphase) and their great description of what was going to happen. They coordinated with our roofing company to make the whole process seamless. The technicians that did the work were very professional and did a great job explaining what they were doing. The original mounting hardware had leaked a bit requiring our roofer to replace about 10 sheets of sheathing. The technician explained how the new mounting system would protect against leaks. They also applied some additional caulk to ensure a good seal. I would highly recommend Elemental for anyone that needs a removal/reinstall for reroofing."

George E on February 2025

Elemental Energy is a highly experienced solar PV design and installation firm for residential and commercial clients throughout Oregon and Southern Washington. Locally owned and operated right here in Portland, we pride ourselves on providing creative solutions to your home or business energy needs, and aim to make the process of going solar simple and efficient.

"We had our house reroofed in January 2025. I got several bids, all came in about the same cost. We ended up selecting Elemental based on their knowledge of our existing system (Enphase) and their great description of what was going to happen. They coordinated with our roofing company to make the whole process seamless. The technicians that did the work were very professional and did a great job explaining what they were doing. The original mounting hardware had leaked a bit requiring our roofer to replace about 10 sheets of sheathing. The technician explained how the new mounting system would protect against leaks. They also applied some additional caulk to ensure a good seal. I would highly recommend Elemental for anyone that needs a removal/reinstall for reroofing."

George E on February 2025


MACDONALD MILLER

5.00(
2
)

MACDONALD MILLER

5.00(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

For owners, high performance buildings are profitable and marketable. For users, they are comfortable and provide a healthy environment. MacDonald-Miller delivers high performance buildings through innovative engineering and operational excellence. Whether envisioning a project in the pre-construction phase or optimizing a vintage building, MacDonald-Miller responds to each customer’s unique needs with deep experience and industry intelligence that includes LEED® accredited professionals and certified energy managers. Visit www.macmiller.com for more information.

For owners, high performance buildings are profitable and marketable. For users, they are comfortable and provide a healthy environment. MacDonald-Miller delivers high performance buildings through innovative engineering and operational excellence. Whether envisioning a project in the pre-construction phase or optimizing a vintage building, MacDonald-Miller responds to each customer’s unique needs with deep experience and industry intelligence that includes LEED® accredited professionals and certified energy managers. Visit www.macmiller.com for more information.


Avatar for Solar Wolf Energy

Solar Wolf Energy

2.00(
2
)

Solar Wolf Energy

2.00(
2
)
11 years of experience

Solar Wolf is a full service solar company with a great reputation and an old world belief to our customers. To under-promise and over-deliver, period. We have 18 years experience in construction, remodeling, roofing, solar water heaters, solar pv systems, battery back-up systems and much more. See what Solar Wolf Energy can do for you!

Solar Wolf is a full service solar company with a great reputation and an old world belief to our customers. To under-promise and over-deliver, period. We have 18 years experience in construction, remodeling, roofing, solar water heaters, solar pv systems, battery back-up systems and much more. See what Solar Wolf Energy can do for you!




Meier Architecture • Engineering

No reviews yet

Meier Architecture • Engineering

No reviews yet
44 years of experience

Meier Architecture & Engineering, an Employee Owned company, is a full-service architectural and engineering consulting firm with Registered Architects and licensed Professional Engineers in Civil, Electrical, Mechanical, and Structural Engineering. Formed in 1982, has successfully completed more than 6,600 projects in the past 29 years. Meier Architecture & Engineering, an award winning company providing services from coast to coast, as well as worldwide, we are licensed in 28 states and serve as members of many professional, discipline-specific associations. Mindful of our future, members of our staff are also accredited in Leadership in Energy and Environmental Design (LEED).

Meier Architecture & Engineering, an Employee Owned company, is a full-service architectural and engineering consulting firm with Registered Architects and licensed Professional Engineers in Civil, Electrical, Mechanical, and Structural Engineering. Formed in 1982, has successfully completed more than 6,600 projects in the past 29 years. Meier Architecture & Engineering, an award winning company providing services from coast to coast, as well as worldwide, we are licensed in 28 states and serve as members of many professional, discipline-specific associations. Mindful of our future, members of our staff are also accredited in Leadership in Energy and Environmental Design (LEED).


Avatar for USA Alarm Service, Inc

USA Alarm Service, Inc

No reviews yet

USA Alarm Service, Inc

No reviews yet
30 years of experience

USA Alarm is a national company that has more than two decades of experience and an award winning command center that protects more than 700,000 homes and businesses through the United States, 24 hours a day and 7 days a week. We have offices located throughout the US, with two main offices in Indianapolis, Indiana and Post Falls, Idaho.

USA Alarm is a national company that has more than two decades of experience and an award winning command center that protects more than 700,000 homes and businesses through the United States, 24 hours a day and 7 days a week. We have offices located throughout the US, with two main offices in Indianapolis, Indiana and Post Falls, Idaho.

Showing 1-10 of 12
Energy Efficiency Auditing questions, answered by experts

Yes, skylights can affect a home’s energy efficiency, either positively or negatively. Properly installed, energy-efficient skylights with Low-E coatings, double glazing, and UV-blocking glass can help regulate indoor temperatures and reduce heating and cooling costs. However, poorly insulated or older skylights can contribute to heat loss in winter and excess heat gain in summer, lowering overall energy efficiency.

A small sump pump running infrequently uses an average of 10 kilowatt-hours (kWh) of electricity per month. The average cost for electricity is $0.171 per kWh. The size and use frequency affect how much electricity it uses. Sump pumps average one-third to one horsepower (hp) motors. One hp is equal to 745.7 watts. Watts multiplied by the time your pump is running divided by 1,000 equals your average kWh. Multiply kWh by your average cost of electricity. In areas with high rain or a marsh basin, the average cost can be as high as $15-$25 a month.

While many states require all new construction to undergo blower door tests, it’s not a requirement for existing homes. But in both cases, a blower test helps confirm that the contractor has sealed the exterior, that the type of ductwork installed is functioning properly, and that your home is as efficient as possible.

Wood windows fall in the middle of the window frame materials when it comes to energy efficiency. They’re more insulating than aluminum and vinyl, but they aren’t as efficient as fiberglass or composite frames. If you love the look and lifespan of wood windows and want to maximize efficiency, you can upgrade to double-pane or triple-pane glass and consider window tinting and low-emissivity (low-E) coatings to minimize heat transfer.

STC (Sound Transmission Class) ratings tell you how well something blocks airborne noise. It’s a single number that sums up how much sound a material, like a window, can stop across regular speech frequencies. The higher the number, the better the sound reduction. A typical single-pane window hovers around STC 25 (where you can hear normal conversations), while well-sealed, double-pane options can push past STC 45 (which blocks out loud speech and most music). Just keep in mind that STC doesn’t cover everything—low rumbles like bass or thunder can sneak through—so pairing methods are always ideal for the most peace and quiet.

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