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Avatar for Perfect Star Heating and Air Conditioning

Perfect Star Heating and Air Conditioning

4.91(
258
)
Approved Pro

Perfect Star Heating and Air Conditioning

4.91(
258
)
Approved Pro
Super Service Award
Customers say: Quick response
9 years of experience
Free onsite estimate

With over 30 years of experience, Perfect Star Heating, Cooling, & Electrical is a locally owned and operated family business serving Alameda & Contra Costa County. We service all makes and models, offering top-quality comfort and energy efficiency solutions. Specializing in Furnace/Heating, Air Conditioning, and Ductless Mini-Split installation, we also provide repair and maintenance for Central HVAC systems, Ductwork, Indoor Air Quality, Electrical Repair & Installation, and Solar Installation. Free estimates are available for HVAC system replacement, new installations, and solar solutions. As a Lennox Premier Dealer, Daikin Comfort Pro, and WellAir Elite dealer, we are Diamond Certified, hold an A+ BBB Rating, and have been voted “The Best Heating & Air Company” and “The Most Community-Minded Company” by The Press in Brentwood, CA for two years. We are also SFGATE’s Best of the Bay Area Heating & A/C Service provider.

"Jesus was prompt and efficient. He diagnosed the problem and restored my heating in a short time"

William D on December 2025

With over 30 years of experience, Perfect Star Heating, Cooling, & Electrical is a locally owned and operated family business serving Alameda & Contra Costa County. We service all makes and models, offering top-quality comfort and energy efficiency solutions. Specializing in Furnace/Heating, Air Conditioning, and Ductless Mini-Split installation, we also provide repair and maintenance for Central HVAC systems, Ductwork, Indoor Air Quality, Electrical Repair & Installation, and Solar Installation. Free estimates are available for HVAC system replacement, new installations, and solar solutions. As a Lennox Premier Dealer, Daikin Comfort Pro, and WellAir Elite dealer, we are Diamond Certified, hold an A+ BBB Rating, and have been voted “The Best Heating & Air Company” and “The Most Community-Minded Company” by The Press in Brentwood, CA for two years. We are also SFGATE’s Best of the Bay Area Heating & A/C Service provider.

"Jesus was prompt and efficient. He diagnosed the problem and restored my heating in a short time"

William D on December 2025


Avatar for Thomas Allen Pro AV Networking

Thomas Allen Pro AV Networking

4.93(
148
)
Approved Pro

Thomas Allen Pro AV Networking

4.93(
148
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
11 years of experience

Thomas Allen Pro AV Networking 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.

"He was able to set my antenna in the correct direction and make minor repairs (replace a bad cable and re-connect one of the antenna connections that was faulty). "

Ronald H on September 2025

Thomas Allen Pro AV Networking 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.

"He was able to set my antenna in the correct direction and make minor repairs (replace a bad cable and re-connect one of the antenna connections that was faulty). "

Ronald H on September 2025


Avatar for Light Way Electric

Light Way Electric

4.94(
49
)
Approved Pro

Light Way Electric

4.94(
49
)
Approved Pro
Super Service Award
Customers say: Quick response
1 years of experience
Free onsite estimate

Light Way Electric with 10 years experience provides exceptional service to the surrounding areas. Always taking pride in all of our services. Whatever your home improvement needs may be, you can count on our company to leave you satisfied and happy. Our customer satisfaction is our top priority. We will earn your trust for a lifetime. We believe in making all clients repeat clients. Our staff listens to your needs regarding your home improvement project. Call us today you'll be relieved you did. Thank you

"Fabian was on time, communicated professionally, and did the work (replacing smoke alarms) quickly. He was pleasant and knowledgeable. I would use him again in a heartbeat. I told him my situation, and he made a recommendation that expanded the scope of the project, then requoted before doing the work. All good. "

Sharon S on November 2025

Light Way Electric with 10 years experience provides exceptional service to the surrounding areas. Always taking pride in all of our services. Whatever your home improvement needs may be, you can count on our company to leave you satisfied and happy. Our customer satisfaction is our top priority. We will earn your trust for a lifetime. We believe in making all clients repeat clients. Our staff listens to your needs regarding your home improvement project. Call us today you'll be relieved you did. Thank you

"Fabian was on time, communicated professionally, and did the work (replacing smoke alarms) quickly. He was pleasant and knowledgeable. I would use him again in a heartbeat. I told him my situation, and he made a recommendation that expanded the scope of the project, then requoted before doing the work. All good. "

Sharon S on November 2025


Avatar for Bayside Electric

Bayside Electric

4.85(
264
)
Approved Pro

Bayside Electric

4.85(
264
)
Approved Pro
Customers say: Quality work
Recommended by 99% of Angi customers
Recommended by 99% of HomeAdvisor customers
11 years of experience

Bayside Electric takes pride in our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"Bayside gave us a prompt estimate and appointment. They installed our electric oven outlet and adjusted our fuse box. Would recommend!"

Kimberly M on February 2025

Bayside Electric takes pride in our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"Bayside gave us a prompt estimate and appointment. They installed our electric oven outlet and adjusted our fuse box. Would recommend!"

Kimberly M on February 2025


Avatar for Service Champions Heating & Air Conditioning

Service Champions Heating & Air Conditioning

4.71(
621
)
Approved Pro

Service Champions Heating & Air Conditioning

4.71(
621
)
Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
22 years of experience

Service Champions is the leading heating and air conditioning contractor in Northern California servicing homeowners in East Bay, South Bay and Sacramento areas. We can make your home more comfortable and improve the quality of air you and your family breathe. We specialize in maintenance, repair and sales of all brands of air conditioners and heaters, and are experts in indoor air quality improvement through filtration, duct replacement, insulation and hospital grade UV lights. All the air conditioners we install have the new environmentally friendly refrigerant that does not damage the ozone. We also are huge proponents of super high efficient equipment, such as 95% efficient furnaces. This equipment saves homeowners a tremendous amount of money on their utility bills.

" It was very good. "

Bob A on December 2025

Service Champions is the leading heating and air conditioning contractor in Northern California servicing homeowners in East Bay, South Bay and Sacramento areas. We can make your home more comfortable and improve the quality of air you and your family breathe. We specialize in maintenance, repair and sales of all brands of air conditioners and heaters, and are experts in indoor air quality improvement through filtration, duct replacement, insulation and hospital grade UV lights. All the air conditioners we install have the new environmentally friendly refrigerant that does not damage the ozone. We also are huge proponents of super high efficient equipment, such as 95% efficient furnaces. This equipment saves homeowners a tremendous amount of money on their utility bills.

" It was very good. "

Bob A on December 2025


Avatar for Nelson Electric

Nelson Electric

5.00(
27
)
Approved Pro

Nelson Electric

5.00(
27
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
4 years of experience

My business specializes in doing electrical work exceptionally well. Residential, Comercial, high end remodels and custom homes. Also will install low voltage wiring for televisions, internet lines, cameras and specialty lighting. I have been working for a reputable electrical contractor in vacaville for my entire adult life. I have the means to finally open my own business and I am excited to do so. My family is my support and the reason I get up everyday and work so hard. I hope I get a chance to do work with you. contact Zack at (707)474-2884

"Zack Nelson provided competitive quote with itemized costs for parts, labor, and permit; communicated clearly and timely via phone call, text messages, and emails during estimating, scheduling, and completing the work. The EV outlet installation work was completed neatly and as planned. I'm fully satisfied and would love to hire Zack again if any electrical work comes up."

Song Y on February 2025

My business specializes in doing electrical work exceptionally well. Residential, Comercial, high end remodels and custom homes. Also will install low voltage wiring for televisions, internet lines, cameras and specialty lighting. I have been working for a reputable electrical contractor in vacaville for my entire adult life. I have the means to finally open my own business and I am excited to do so. My family is my support and the reason I get up everyday and work so hard. I hope I get a chance to do work with you. contact Zack at (707)474-2884

"Zack Nelson provided competitive quote with itemized costs for parts, labor, and permit; communicated clearly and timely via phone call, text messages, and emails during estimating, scheduling, and completing the work. The EV outlet installation work was completed neatly and as planned. I'm fully satisfied and would love to hire Zack again if any electrical work comes up."

Song Y on February 2025


Emanuel Morales Electric

4.98(
26
)
Approved Pro

Emanuel Morales Electric

4.98(
26
)
Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
7 years of experience

Here Emanuel Morales Electric, we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

"Wonderful team. Well trained."

Henry C C on June 2025

Here Emanuel Morales Electric, we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

"Wonderful team. Well trained."

Henry C C on June 2025


"Very reliable and quite cost effective. Would hire again."

Alejandro W on September 2020

Emrom Electric, Inc., is your full service company offering service for all phases of your electrical needs. We pride ourselves on getting the job done! We service Alameda, Solano, Contra Costa, Marin and San Francisco Counties.

"Very reliable and quite cost effective. Would hire again."

Alejandro W on September 2020


Avatar for DJ3 Electric

DJ3 Electric

4.96(
24
)
Approved Pro

DJ3 Electric

4.96(
24
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
3 years of experience

DJ3 ELECTRIC 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.

"He arrived on time, did an outstanding job and shared great stories about his life and military service. I'll definitely hire him again."

Azure C on April 2025

DJ3 ELECTRIC 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.

"He arrived on time, did an outstanding job and shared great stories about his life and military service. I'll definitely hire him again."

Azure C on April 2025


Avatar for Golden Bay Electric

Golden Bay Electric

4.91(
27
)
Approved Pro

Golden Bay Electric

4.91(
27
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
4 years of experience

Golden Bay Electric is dedicated to providing our customers with the best quality work and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations.

"Job was quoted so quickly and was onsite within 90 minutes. I have rarely received such quick service for a small job. Electrician was courteous, clean and professional. No price gouging with this company, they will now be my go to all my electrical needs going forward. Thanks Golden Bay Electric!"

Steve C on March 2025

Golden Bay Electric is dedicated to providing our customers with the best quality work and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations.

"Job was quoted so quickly and was onsite within 90 minutes. I have rarely received such quick service for a small job. Electrician was courteous, clean and professional. No price gouging with this company, they will now be my go to all my electrical needs going forward. Thanks Golden Bay Electric!"

Steve C on March 2025

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Generator Install questions, answered by experts

In some situations, yes. Never try to put biofuel into any home generator without checking the specifics first. If a generator has the ability to run on diesel, it can also run pure biofuel (the clear kind made from seed oils, for example). But if you are using biofuel made from animal fats or vegetable oils, the generator will need significant modifications before it can handle a sludgier type of biofuel.

As a safety measure, you should always turn off the main breaker while operating your generator’s backup breaker. In addition, you should also switch off all appliance breakers so you don't have a power surge when the main breaker turns back on. And finally, turning off the main breaker prevents back-feeding, which endangers utility workers with the risk of electrocution. Back-feeding could also destroy the electrical circuits of your neighbors if they use the same power network.

Generators run on a variety of fuel types, ranging from natural gas to solar power. Keep in mind that fuel costs varying by type:

  • Natural gas: $2,000–$21,000 per year 

  • Liquid propane: $2,000–$21,000 per year

  • Diesel: $3,000–$20,000 per year

  • Gasoline: $500–$3,000 per year

  • Solar generator: $2,000–$25,000 per unit

  • Battery backup: $10,000–$25,000 per unit

Potential benefits of using a natural gas generator include reducing your carbon footprint, lower likelihood of carbon monoxide exposure, budget-friendly operating costs, and low-maintenance, continuous fuel supply. Some possible drawbacks, though, include higher initial installation costs, dependency on a natural gas supply, and installation complexity. Keep in mind that pros and cons will vary based on the type and brand of natural gas generator. 

If you’re wondering whether gas generators produce carbon monoxide, know that natural gas generators do not produce carbon monoxide if they are functioning properly, as natural gas burns cleanly. However, if the generator malfunctions and the gas does not burn completely, there is potential for carbon dioxide to be produced. To prevent malfunctions, it's crucial to perform regular maintenance, including running the generator weekly and scheduling professional inspections every 6 to 12 months. Also, be sure to test your carbon monoxide detectors regularly to ensure they function in the rare case of the generator producing carbon monoxide.

The Fairfield, CA homeowners’ guide to generator installs

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

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