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Avatar for Global Green Solutions

Global Green Solutions

5.00(
111
)
Approved Pro

Global Green Solutions

5.00(
111
)
Approved Pro
Customers say: Quick response
20 years of experience
Free onsite estimate

Whether you need an A/C or Heater installation or repair in Los Angeles, our team of HVAC pros is here to deliver outstanding service. We're passionate about delivering an exceptional heating and air conditioning experience. When you hire us, you're hiring a team of professionals who are trained and skilled to deliver lasting value to your home. We're committed to serving you with quality and great value. We'll come to you, listen to your needs, and then come back to you with a logical, feasible plan that works for you. Our first-time customers continually become our long-term customers time and time again, choosing us for all the heating, AC, air ducts needs. Contact us today and see what our commitment to quality is all about! We may not be related, but you'll feel like we're family. We Service Los Angeles and surrounding areas. Call us today for a free estimate!

"Excellent heating and air conditioning repair, replacement, and new installation services! Everything went smoothly and without incident from beginning to end. Before departing, they made sure the system was operating flawlessly, responded quickly, and worked effectively. Excellent service?I heartily recommend them!"

James on December 2025

Whether you need an A/C or Heater installation or repair in Los Angeles, our team of HVAC pros is here to deliver outstanding service. We're passionate about delivering an exceptional heating and air conditioning experience. When you hire us, you're hiring a team of professionals who are trained and skilled to deliver lasting value to your home. We're committed to serving you with quality and great value. We'll come to you, listen to your needs, and then come back to you with a logical, feasible plan that works for you. Our first-time customers continually become our long-term customers time and time again, choosing us for all the heating, AC, air ducts needs. Contact us today and see what our commitment to quality is all about! We may not be related, but you'll feel like we're family. We Service Los Angeles and surrounding areas. Call us today for a free estimate!

"Excellent heating and air conditioning repair, replacement, and new installation services! Everything went smoothly and without incident from beginning to end. Before departing, they made sure the system was operating flawlessly, responded quickly, and worked effectively. Excellent service?I heartily recommend them!"

James on December 2025


Avatar for Prosper Construction Development, Inc.

Prosper Construction Development, Inc.

4.88(
38
)
Approved Pro

Prosper Construction Development, Inc.

4.88(
38
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
12 years of experience

We are a locally owned and operated company that values honesty and integrity, and treats your home as if it were our own. We offer a variety of services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction!

"Fast response and clear communication throughout the process."

Marco T on April 2025

We are a locally owned and operated company that values honesty and integrity, and treats your home as if it were our own. We offer a variety of services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction!

"Fast response and clear communication throughout the process."

Marco T on April 2025


Avatar for Trinity Heating and AC

Trinity Heating and AC

5.00(
9
)
Approved Pro

Trinity Heating and AC

5.00(
9
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
4 years of experience

Trinity Heating and AC is so much more than another heating/AC company. We exceed our customer’s expectations and standards in a number of ways; such as arriving within the promised time frame or leave our work space cleaner then we found it! We provide custom solutions that take all factors into consideration so we can design a system that will meet the needs of your home and everyone in it! We offer so much more then just replacement of your existing system or installation of a new one. Do you have high utility bills when you are running the system, or someone’s allergies are aggravated when running the system? No matter what your need, if it has anything to do with HEATING, COOLING, AIR FLOW, or AIR QUALITY; TRINITY HEATING AND AC is ready to help!

"Chris was able to fix our ac unit, where my old account guy said we NEEDED to replace it!!! Plus Chris is very personable and I believe he is very honest and forthcoming as he could have sold us a new system, but found us a much cheaper option!!"

Sonja H on June 2025

Trinity Heating and AC is so much more than another heating/AC company. We exceed our customer’s expectations and standards in a number of ways; such as arriving within the promised time frame or leave our work space cleaner then we found it! We provide custom solutions that take all factors into consideration so we can design a system that will meet the needs of your home and everyone in it! We offer so much more then just replacement of your existing system or installation of a new one. Do you have high utility bills when you are running the system, or someone’s allergies are aggravated when running the system? No matter what your need, if it has anything to do with HEATING, COOLING, AIR FLOW, or AIR QUALITY; TRINITY HEATING AND AC is ready to help!

"Chris was able to fix our ac unit, where my old account guy said we NEEDED to replace it!!! Plus Chris is very personable and I believe he is very honest and forthcoming as he could have sold us a new system, but found us a much cheaper option!!"

Sonja H on June 2025


Eskimo Air

4.60(
5
)
Approved Pro

Eskimo Air

4.60(
5
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
29 years of experience

Eskimo Air Is Celebrating 30 Years In Business . No job Is To Big Or Small We Do It All Sales Service Installations Please Call 626-945-7930 ESKIMO AIR CONDITIONING IS DEDICATED TO PROVIDING THE BEST POSSIBLE SOLUTION FOR YOUR HOME OR BUSINESS. YOU CAN COUNT ON US TO PROVIDE YOU WITH A SYSTEM AND SOLUTION THAT FITS YOUR UNIQUE NEEDS AND SINCE WE'VE INSTALLED MANY SYSTEMS IN THIS AREA, WE'VE EARNED A REPUTATION FOR DOING THE JOB RIGHT THE FIRST TIME.

"Repairman didn't clean up after this one"

Norma H on October 2024

Eskimo Air Is Celebrating 30 Years In Business . No job Is To Big Or Small We Do It All Sales Service Installations Please Call 626-945-7930 ESKIMO AIR CONDITIONING IS DEDICATED TO PROVIDING THE BEST POSSIBLE SOLUTION FOR YOUR HOME OR BUSINESS. YOU CAN COUNT ON US TO PROVIDE YOU WITH A SYSTEM AND SOLUTION THAT FITS YOUR UNIQUE NEEDS AND SINCE WE'VE INSTALLED MANY SYSTEMS IN THIS AREA, WE'VE EARNED A REPUTATION FOR DOING THE JOB RIGHT THE FIRST TIME.

"Repairman didn't clean up after this one"

Norma H on October 2024


Avatar for Isrey Home Inspection

Isrey Home Inspection

New on AngiNew on Angi
Approved Pro

Isrey Home Inspection

New on AngiNew on Angi
Approved Pro
17 years of experience
Free onsite estimate

Isrey Home Inspection is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!

Isrey Home Inspection is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!


Avatar for JO Solar Designs

JO Solar Designs

New on AngiNew on Angi
Approved Pro

JO Solar Designs

New on AngiNew on Angi
Approved Pro
7 years of experience
Free onsite estimate

JO Solar Designs is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

JO Solar Designs is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.


Solar Energy - Unlicensed Contractor

New on AngiNew on Angi
Approved Pro

Solar Energy - Unlicensed Contractor

New on AngiNew on Angi
Approved Pro
4 years of experience
Free onsite estimate

Empowered Solutions is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

Empowered Solutions is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.


Avatar for E.Z. Energy Solutions

E.Z. Energy Solutions

3.90(
10
)

E.Z. Energy Solutions

3.90(
10
)
Customers say: Quality work
17 years of experience

One of Southern California's favorite Solar Energy Expert and Home Improvement/ Remodeling Contractor in Southern California! We provide you with clean, efficient and affordable solutions customized to your needs. Our highly skilled technicians will be with you throughout the entire process to help you secure your Energy Future and Home Remodeling dreams! When you decide to go solar or remodel part or all of your home or commercial project, you need a team you can trust to create top-quality work, with consistent communication and a great reputation E.Z. Energy Solutions has worked hard since our founding in 2008 to become the company we are today! Services include Solar Panels, Home Solar, Commercial Solar, Insulation, Solar Electric, Solar Panel Installation, Complete Residential and Commercial Remodeling, Kitchen Remodeling, Bathroom Remodeling, Custom Accessory Dwelling Unit, Garage Conversion and Addition, Room Addition, Interior and Exterior Paint, Roofing, Solar Panel Installation, Repair, Maintenance, Energy Efficiency Consultations and Products, AC;

"My panels haven’t work for the last 8 months And I’m paying for them and paying Edison for electricity., we all could have mistakes but I think 8 months is just ridiculous time very very frustrated I don’t know what to do anymore"

Oscar L on September 2022

One of Southern California's favorite Solar Energy Expert and Home Improvement/ Remodeling Contractor in Southern California! We provide you with clean, efficient and affordable solutions customized to your needs. Our highly skilled technicians will be with you throughout the entire process to help you secure your Energy Future and Home Remodeling dreams! When you decide to go solar or remodel part or all of your home or commercial project, you need a team you can trust to create top-quality work, with consistent communication and a great reputation E.Z. Energy Solutions has worked hard since our founding in 2008 to become the company we are today! Services include Solar Panels, Home Solar, Commercial Solar, Insulation, Solar Electric, Solar Panel Installation, Complete Residential and Commercial Remodeling, Kitchen Remodeling, Bathroom Remodeling, Custom Accessory Dwelling Unit, Garage Conversion and Addition, Room Addition, Interior and Exterior Paint, Roofing, Solar Panel Installation, Repair, Maintenance, Energy Efficiency Consultations and Products, AC;

"My panels haven’t work for the last 8 months And I’m paying for them and paying Edison for electricity., we all could have mistakes but I think 8 months is just ridiculous time very very frustrated I don’t know what to do anymore"

Oscar L on September 2022


Avatar for Sunlux Energy

Sunlux Energy

4.92(
107
)

Sunlux Energy

4.92(
107
)
Customers say: Quality work
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers

Sunlux is a roofing and solar energy provider servicing southern California that provides a variety of options in order to help you find what best fits your needs. We deliver the tools, support and advice you need to make going solar simple. We handle everything from paperwork to maintenance, so all you have to worry about is what to do with the savings. We guarantee installation, parts and maintenance for every job. Your satisfaction is our top priority and we’ll be here for you through every step of your solar and roofing journey. Ready to talk to our team? Please call us today!

"We were in the market for a solar system from a company that was reliable and we could trust. After doing lots of research we asked Sunlux to be our solar provider. They were very honest with their prices (they were on one of the lowest) and their customer service has been excellent? Since we did not know a lot about solar systems, they educated us to be smart consumers and gave us options and choices that met our needs. We can truly say, we are very happy with Sunlux and would recommend them to others as well."

Kevin B on February 2020

Sunlux is a roofing and solar energy provider servicing southern California that provides a variety of options in order to help you find what best fits your needs. We deliver the tools, support and advice you need to make going solar simple. We handle everything from paperwork to maintenance, so all you have to worry about is what to do with the savings. We guarantee installation, parts and maintenance for every job. Your satisfaction is our top priority and we’ll be here for you through every step of your solar and roofing journey. Ready to talk to our team? Please call us today!

"We were in the market for a solar system from a company that was reliable and we could trust. After doing lots of research we asked Sunlux to be our solar provider. They were very honest with their prices (they were on one of the lowest) and their customer service has been excellent? Since we did not know a lot about solar systems, they educated us to be smart consumers and gave us options and choices that met our needs. We can truly say, we are very happy with Sunlux and would recommend them to others as well."

Kevin B on February 2020


Avatar for Home Performance Matters Inc

Home Performance Matters Inc

4.89(
66
)

Home Performance Matters Inc

4.89(
66
)
Customers say: True professional
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers

About us: We are a fully integrated Home Performance Contractor based in Upland, California.HPM provides BPI-certified energy audits, custom energy designs, and complete energy retrofit services including: insulation, HVAC and duct replacement, lighting and baseload consultations, and solar panel installation. Mission: Your Full-Service Energy Efficiency and Solar Experts. Goals with every project: * Clients become friends and begin to share our passion for sustainable energy * We make a positive impact on the level of neighborhood, community, and planet * We demonstrate professionalism, integrity, and quality that produces raving fans and collaborators

"First, we had a consultation with Jim, who was very thorough and honest about all the options available. The crew were punctual and very considerate, making sure everything was covered in plastic to keep things clean. There were A LOT OF rocks and debris in the attic (apparently the roof used to be flat concrete). So, it took them all day instead of half the day to finish the work. I feel so bad for the crew, and they were still so nice."

JITTIMA J on April 2018

About us: We are a fully integrated Home Performance Contractor based in Upland, California.HPM provides BPI-certified energy audits, custom energy designs, and complete energy retrofit services including: insulation, HVAC and duct replacement, lighting and baseload consultations, and solar panel installation. Mission: Your Full-Service Energy Efficiency and Solar Experts. Goals with every project: * Clients become friends and begin to share our passion for sustainable energy * We make a positive impact on the level of neighborhood, community, and planet * We demonstrate professionalism, integrity, and quality that produces raving fans and collaborators

"First, we had a consultation with Jim, who was very thorough and honest about all the options available. The crew were punctual and very considerate, making sure everything was covered in plastic to keep things clean. There were A LOT OF rocks and debris in the attic (apparently the roof used to be flat concrete). So, it took them all day instead of half the day to finish the work. I feel so bad for the crew, and they were still so nice."

JITTIMA J on April 2018

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FAQs for energy efficiency auditing projects in Walnut, CA

An energy audit costs about $420 on average, ranging from $100 to $2,250, depending on the size of your home, property, location, and the tests the auditor needs to perform. Keep in mind that the 2022 Inflation Reduction Act’s Energy Efficient Home Improvement credit covers up to $150 of home energy audit costs. Common energy audit tests include:

  • Blower door test: $350

  • Duct testing: $100

  • HERS test: $375

  • HERS certification: $200

  • Infrared imaging: $200

The difference between an energy auditor and a home inspector is primarily in the purpose of the inspection. The energy auditor conducts tests in your home to determine the energy efficiency levels in areas like windows, insulation, and doorways. The auditor then makes recommendations for ways to improve a home’s energy efficiency

A home inspector examines various structures of your home to determine that everything is up to code and gauge the condition of features like the roof, foundation, HVAC, and electrical. The home inspector reports on the overall home and makes repair recommendations.

Typically, a local home energy auditor is responsible for performing energy audits. A home energy auditor will conduct one of three energy audits designed by the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) to determine the energy efficiency of your home. The auditor often provides analysis that can help guide changes and improvements to your home for better energy efficiency, giving recommendations as necessary.

The three levels of home energy audits include:

  • Level 1: Review of your energy bills and home for signs of energy inefficiency and areas for improvement. The average cost range is $0.08 to $0.12 per square foot.

  • Level 2: A level 2 ASHRAE energy audit costs $0.12 and $0.35 per square foot. In-depth analysis of your energy usage and provides a report of cost-saving changes.

  • Level 3: Comprehensive analysis and detailed recommendations for ways to improve your home’s energy efficiency. A level 3 audit costs about $0.36 to $0.50 per square foot.

To find a reputable energy auditor, find a local company that offers energy audit services. Research the company’s reviews, methods, and certifications to find a reliable professional in your area. The most reputable energy audit companies are HEP-certified by the Building Performance Institute (BPI). Be sure to check our state licensing tool to review the local energy auditor guidelines to ensure you’re hiring a certified professional.

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

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