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Verified Reviews for Energy Efficiency Auditing pros in Willows, CA

*The Angi rating for Energy Efficiency Auditing companies in Willows, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Energy Efficiency Auditing needs.

*The HomeAdvisor rating for Energy Efficiency Auditing companies in Willows, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Energy Efficiency Auditing needs.

Last update on January 09, 2026

Find Energy efficiency auditors in Willows

Avatar for Gallaghers Plumbing, Heating & Air Inc.

Gallaghers Plumbing, Heating & Air Inc.

3.62(
71
)
•Approved Pro

Gallaghers Plumbing, Heating & Air Inc.

3.62(
71
)
•Approved Pro
Customers say: Super punctual
37 years of experience
Free onsite estimate

Welcome to Gallagher's Heating, Air Conditioning & Plumbing, where your family's comfort and safety are our top priorities. Whether you need air conditioning service, heating repairs, plumbing solutions, or indoor air quality improvements, you'll be served by one of our "Stand Up Guys" - highly trained professionals you can trust. Every member of our team has completed rigorous technical training, passed comprehensive background checks, and regular drug screening. We take pride in sending only the most qualified, courteous, and reliable technicians to your home. When you choose Gallagher's, you're choosing peace of mind and exceptional service from professionals who treat your home as if it were their own.

Welcome to Gallagher's Heating, Air Conditioning & Plumbing, where your family's comfort and safety are our top priorities. Whether you need air conditioning service, heating repairs, plumbing solutions, or indoor air quality improvements, you'll be served by one of our "Stand Up Guys" - highly trained professionals you can trust. Every member of our team has completed rigorous technical training, passed comprehensive background checks, and regular drug screening. We take pride in sending only the most qualified, courteous, and reliable technicians to your home. When you choose Gallagher's, you're choosing peace of mind and exceptional service from professionals who treat your home as if it were their own.

Climate & Energy Solutions

4.75(
12
)

Climate & Energy Solutions

4.75(
12
)
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We have evolved into a Home Energy company. We do Home Energy Audits. We participate in State, Federal, Local and PG&E rebate programs. We offer a whole home solution to energy issues including heating, air conditioning, Solar Energy Systems, Insulation, Air Ducting (installation and cleaning), Energy Efficient Windows, Variable Speed Pool Pump, and Tank-less Water Heaters. We provide both service and sales for any brand of equipment. Our technicians are back round checked, professional, courteous and factory trained. Additional phone number - (530) 342-2562. Additional DBAs - Climate Masters Heating and Air Conditioning, Sheraton Services Inc.

We have evolved into a Home Energy company. We do Home Energy Audits. We participate in State, Federal, Local and PG&E rebate programs. We offer a whole home solution to energy issues including heating, air conditioning, Solar Energy Systems, Insulation, Air Ducting (installation and cleaning), Energy Efficient Windows, Variable Speed Pool Pump, and Tank-less Water Heaters. We provide both service and sales for any brand of equipment. Our technicians are back round checked, professional, courteous and factory trained. Additional phone number - (530) 342-2562. Additional DBAs - Climate Masters Heating and Air Conditioning, Sheraton Services Inc.

R B Spencer Inc Heating & Air

5.00(
5
)

R B Spencer Inc Heating & Air

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

R.B. Spencer Inc installs and maintains heating and air conditioning units (HVAC) for homes and businesses throughout the N. California. Twenty-four hours a day and seven days a week air conditioning and heating repair and installation headquarters in Yuba City California. With a staff of fully trained and certified air conditioning and refrigeration technicians throughout Northern California to better help you. Serving Colusa County, Nevada County, Placer County, Glenn County, Yolo County, Butte County, Sacramento County Yuba County and Sutter County since 1984. Additional email: [email protected]

R.B. Spencer Inc installs and maintains heating and air conditioning units (HVAC) for homes and businesses throughout the N. California. Twenty-four hours a day and seven days a week air conditioning and heating repair and installation headquarters in Yuba City California. With a staff of fully trained and certified air conditioning and refrigeration technicians throughout Northern California to better help you. Serving Colusa County, Nevada County, Placer County, Glenn County, Yolo County, Butte County, Sacramento County Yuba County and Sutter County since 1984. Additional email: [email protected]

Avatar for Urban Design

Urban Design

5.00(
2
)

Urban Design

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

Urban Design is the premier residential, commercial, and agricultural solar contractor in Northern California specializing in custom solar designs and installs. Based in Chico, Urban Design prides itself on being in the forefront of renewable energy and construction projects and offering the latest technologies from Hanwha Q Cells, REC Solar, LG Electronics, Canadian Solar, SolarEdge, and LG Chem. Making the decision to invest in solar is more than just committing to making the world a better place; you’re also making an economically smart decision for you and your family. We will work with you to not only get the most energy efficient system for your home but also to find the best financing as well as state and federal refunds for you! When you go solar you reduce your electrical bills from the second it’s installed and savings will continue to grow as the years flow. From grid-tie solar arrays to off-grid arrays, from roof mount to ground mount, patio covers to carports, Urban Design is here to help find the best solution for you and your home.

Urban Design is the premier residential, commercial, and agricultural solar contractor in Northern California specializing in custom solar designs and installs. Based in Chico, Urban Design prides itself on being in the forefront of renewable energy and construction projects and offering the latest technologies from Hanwha Q Cells, REC Solar, LG Electronics, Canadian Solar, SolarEdge, and LG Chem. Making the decision to invest in solar is more than just committing to making the world a better place; you’re also making an economically smart decision for you and your family. We will work with you to not only get the most energy efficient system for your home but also to find the best financing as well as state and federal refunds for you! When you go solar you reduce your electrical bills from the second it’s installed and savings will continue to grow as the years flow. From grid-tie solar arrays to off-grid arrays, from roof mount to ground mount, patio covers to carports, Urban Design is here to help find the best solution for you and your home.

Avatar for PowerHouse Solar

PowerHouse Solar

3.00(
3
)

PowerHouse Solar

3.00(
3
)
Customers say: Super punctual
23 years of experience

Premier installer of residential solar energy systems in Northern California, since 2003. 20 employees. A+ rating with the Better Business Bureau, member of Shasta Builders Exchange, Redding Chamber of Commerce, fully Bonded & Insured. We are a "Premer Dealer" for SunPower Corp, the world's most efficient solar panel, with the largest market share of solar installations in the U.S., both Commercial & Residential. Certified installer of Fafco swimming pool solar systems.

Premier installer of residential solar energy systems in Northern California, since 2003. 20 employees. A+ rating with the Better Business Bureau, member of Shasta Builders Exchange, Redding Chamber of Commerce, fully Bonded & Insured. We are a "Premer Dealer" for SunPower Corp, the world's most efficient solar panel, with the largest market share of solar installations in the U.S., both Commercial & Residential. Certified installer of Fafco swimming pool solar systems.

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!

Showing 1-10 of 17
Energy Efficiency Auditing questions, answered by experts

ENERGY STAR®-certified windows are the most energy-efficient windows on the market. This certification means that the window meets strict efficiency guidelines set forth by the Environmental Protection Agency. While they might cost more upfront, they can save you money on your energy bills in the long run. ENERGY STAR®-certified windows lower household energy bills by an average of 12% annually.

Energy-efficient windows cost more than other window types, but they can help you save on your monthly energy bills, get you some breaks on your taxes, and even increase the value of your home. According to Michael S. Regan, Administrator of the U.S. Environmental Protection Agency, when people invest in green upgrades like energy-efficient windows, they save energy, money, and more.

The effect a gas fireplace has on your gas bill will depend on how often you use it, the size of the rooms you’re heating with it, and the BTUs of the fireplace itself, but generally speaking, it should only cost a few cents an hour to run it when it’s on. It will consume minimal energy when it’s “off” if you have a pilot light running constantly, but some modern gas fireplaces don’t require a constant pilot light.

A blower door test shouldn’t take more than an hour, and most can be completed in less than 30 minutes. Expect the test to take longer once you start searching for leaks with thermal imaging or want to include sealing such leaks in the time estimate. The test doesn’t take much time and can’t be rushed, but it will take longer in large homes or those with many air leaks.

Energy output depends on turbine size, average wind speed at your site, and system efficiency. A 5 kW turbine in a good wind location can generate 8,000 to 12,000 kilowatt-hours per year, which may cover a large portion of an average home’s needs. Accurate output estimates require a professional wind assessment and a review of your household’s energy usage patterns.

The Willows, CA homeowners’ guide to energy efficiency auditing services

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