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Pinnacle Energy Solutions-Unlicensed Contractor

5.00(
1
)
Approved Pro

Pinnacle Energy Solutions-Unlicensed Contractor

5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
9 years of experience

Pinnacle Energy Solutions has become a staple of professionalism and quality work in San Ramon for years. With decades of experience, there is no job too large or small. Call today to schedule an appointment!

"The thing I appreciate with Steven is, there is no sales pitch! He paired us with best options we have and he always gets back and answers any questions we have to me! Just great!"

Greg N on August 2021

Pinnacle Energy Solutions has become a staple of professionalism and quality work in San Ramon for years. With decades of experience, there is no job too large or small. Call today to schedule an appointment!

"The thing I appreciate with Steven is, there is no sales pitch! He paired us with best options we have and he always gets back and answers any questions we have to me! Just great!"

Greg N on August 2021


Avatar for NRG Clean Power

NRG Clean Power

4.58(
43
)

NRG Clean Power

4.58(
43
)
Customers say: Terrific value
26 years of experience

NRG Clean Power is California’s leading clean power provider. We leverage over 30 years of superior customer service installing solar from the south of San Diego to the northern border with Oregon. In other words, regardless of where you are in California, we can help you make the switch to solar! Not only do we offer top-tier solar services, we are also a total home performance company, devoted to sustainability and energy efficiency. We offer fully customized home and business solar installations with battery backup capabilities. We do not service solar systems that we did not install. We believe the future is clean, renewable energy and with your help we are committed to creating it together. Customer satisfaction is a crucial aspect and the cornerstone of our business. As a result, we have earned the prestigious Diamond Certification 4 years in a row, along with the 2019 Angie’s List Super Service Award. NRG Clean Power offers the finest solar products at the best rates with finance options for everyone. We will be with you every step of the way and for years to come. Check out our promos to take advantage of our best deals. And ask about our Referral Program that allows customers like you to earn cash bonuses for referring friends and family!

"No doubt they hire great installation people, but their communication and honoring their quotes has little to be desired. I will elaborate. I was given a quote, left on my voicemail. I responded the next day letting NRG know I accepted their quote. 1 week later I received a phone call telling me they wouldn't honor the quote give, and they cited the reasons as Tarif's. This was back in April 2025. I still went with NRG, albeit at a$1000.00 increase. The second reason I wouldn't recommend this company, and this for me is the final straw, after installing my solar NRG didn't let me know I needed to have an ESR release, in layman's terms this is necessary for your power company to accept your new solar system. I found out this information when they contacted me in August 2025. NEG blamed the company who upgraded my Electrical Panel. NRG INSTALLED MY SOLAR AFTER THE PANEL WAS UPGRADED. Since this company doesn't communicate with its clients I would say go with another company."

Daniel S on August 2025

NRG Clean Power is California’s leading clean power provider. We leverage over 30 years of superior customer service installing solar from the south of San Diego to the northern border with Oregon. In other words, regardless of where you are in California, we can help you make the switch to solar! Not only do we offer top-tier solar services, we are also a total home performance company, devoted to sustainability and energy efficiency. We offer fully customized home and business solar installations with battery backup capabilities. We do not service solar systems that we did not install. We believe the future is clean, renewable energy and with your help we are committed to creating it together. Customer satisfaction is a crucial aspect and the cornerstone of our business. As a result, we have earned the prestigious Diamond Certification 4 years in a row, along with the 2019 Angie’s List Super Service Award. NRG Clean Power offers the finest solar products at the best rates with finance options for everyone. We will be with you every step of the way and for years to come. Check out our promos to take advantage of our best deals. And ask about our Referral Program that allows customers like you to earn cash bonuses for referring friends and family!

"No doubt they hire great installation people, but their communication and honoring their quotes has little to be desired. I will elaborate. I was given a quote, left on my voicemail. I responded the next day letting NRG know I accepted their quote. 1 week later I received a phone call telling me they wouldn't honor the quote give, and they cited the reasons as Tarif's. This was back in April 2025. I still went with NRG, albeit at a$1000.00 increase. The second reason I wouldn't recommend this company, and this for me is the final straw, after installing my solar NRG didn't let me know I needed to have an ESR release, in layman's terms this is necessary for your power company to accept your new solar system. I found out this information when they contacted me in August 2025. NEG blamed the company who upgraded my Electrical Panel. NRG INSTALLED MY SOLAR AFTER THE PANEL WAS UPGRADED. Since this company doesn't communicate with its clients I would say go with another company."

Daniel S on August 2025


Avatar for Simmitri Affordable Roofing & Solar

Simmitri Affordable Roofing & Solar

4.93(
15
)

Simmitri Affordable Roofing & Solar

4.93(
15
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Simmitri Solar, is a customer-centric Silicon Valley company with an approach to energy management that is unique to the entire industry. Since 1995, Simmitri has demonstrated to thousands of satisfied customers, expertise in designing and installing Energy & Roof systems. From high-level corporate oversight to our experienced team of roof system technicians, energy advisers, operations/install personnel, project management professionals, sales consultants, and energy-efficient building performance analysts, we are all passionate about engaging our customers in... Doing solar the way it should be done. Celebrating our 26th year in business, we are dedicated to providing the very best long-term solutions to our valued customers.

"Their customer service was top notch. Very responsive and although minor hiccups were encountered, they were dealt with in a timely manner and there was no communication gap."

Andrew Y on July 2023

Simmitri Solar, is a customer-centric Silicon Valley company with an approach to energy management that is unique to the entire industry. Since 1995, Simmitri has demonstrated to thousands of satisfied customers, expertise in designing and installing Energy & Roof systems. From high-level corporate oversight to our experienced team of roof system technicians, energy advisers, operations/install personnel, project management professionals, sales consultants, and energy-efficient building performance analysts, we are all passionate about engaging our customers in... Doing solar the way it should be done. Celebrating our 26th year in business, we are dedicated to providing the very best long-term solutions to our valued customers.

"Their customer service was top notch. Very responsive and although minor hiccups were encountered, they were dealt with in a timely manner and there was no communication gap."

Andrew Y on July 2023


Avatar for Allterra Solar

Allterra Solar

5.00(
5
)

Allterra Solar

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

Allterra Solar is a Santa Cruz based, full service solar sales and installation company serving residential and commercial clients. We sell, design, engineer, build, and maintain our solar systems. Founded in 2004, Allterra Solar has been providing environmental engineering and construction services for 10-years. We have recruited top solar professional talent in the area to build the best solar team in the Central Coast. Our team has over 75-years of combined solar experience and includes licensed engineers and contractors (A, B, C-10, C-46). We have been voted Best Solar Company in Santa Cruz County 3-years in a row and were recently awarded Best Place to Work in Monterey Bay for 2013 because we care about our clients and our staff. We offer FREE Solar Feasability Studies to help homeowners make informed decisions. Our $0 Down Local Solar Power programs are helping homeowners save on monthly electricity costs through out the Monterey and SF Bay Areas. Call us to learn more.

"It went perfect. The whole company have been helpful they were very professional know what they are going to do and they would do followups to check up on."

Jane H on November 2018

Allterra Solar is a Santa Cruz based, full service solar sales and installation company serving residential and commercial clients. We sell, design, engineer, build, and maintain our solar systems. Founded in 2004, Allterra Solar has been providing environmental engineering and construction services for 10-years. We have recruited top solar professional talent in the area to build the best solar team in the Central Coast. Our team has over 75-years of combined solar experience and includes licensed engineers and contractors (A, B, C-10, C-46). We have been voted Best Solar Company in Santa Cruz County 3-years in a row and were recently awarded Best Place to Work in Monterey Bay for 2013 because we care about our clients and our staff. We offer FREE Solar Feasability Studies to help homeowners make informed decisions. Our $0 Down Local Solar Power programs are helping homeowners save on monthly electricity costs through out the Monterey and SF Bay Areas. Call us to learn more.

"It went perfect. The whole company have been helpful they were very professional know what they are going to do and they would do followups to check up on."

Jane H on November 2018


Avatar for Bogners All Air Heating & AC

Bogners All Air Heating & AC

4.75(
8
)

Bogners All Air Heating & AC

4.75(
8
)
Customers say: Terrific value
23 years of experience

As a leading HVAC Company in Scotts Valley, California since 1974, Bogners All Air Corp is a premier provider of heating and cooling services for the Santa Cruz County area. We have proudly built our business one happy customer at a time, ensuring our quality work provides them with the excellent customer experience they deserve. Bogners All Air Corp is well-known for our prompt service, attention to detail and affordable pricing perfect to fit any budget. We carry all major HVAC brands and provide a wide range of heating and cooling services for furnaces, air conditioners, thermostats, heat pumps, mini-split systems, indoor air quality, and much more. Give us a call today at (831) 316-3616 for a free quote

"Repair man showed up a day early without advance notice and I was unable to give them access at the time. They were then unable to come at the original time (the next morning), but did manage to come that afternoon. The job was completed professionally and quickly aside from the scheduling changes. They were able to replace the failed capacitor and get the unit back online."

Nathan T on September 2020

As a leading HVAC Company in Scotts Valley, California since 1974, Bogners All Air Corp is a premier provider of heating and cooling services for the Santa Cruz County area. We have proudly built our business one happy customer at a time, ensuring our quality work provides them with the excellent customer experience they deserve. Bogners All Air Corp is well-known for our prompt service, attention to detail and affordable pricing perfect to fit any budget. We carry all major HVAC brands and provide a wide range of heating and cooling services for furnaces, air conditioners, thermostats, heat pumps, mini-split systems, indoor air quality, and much more. Give us a call today at (831) 316-3616 for a free quote

"Repair man showed up a day early without advance notice and I was unable to give them access at the time. They were then unable to come at the original time (the next morning), but did manage to come that afternoon. The job was completed professionally and quickly aside from the scheduling changes. They were able to replace the failed capacitor and get the unit back online."

Nathan T on September 2020


Avatar for Allstate Spray Foam Insulaiton

Allstate Spray Foam Insulaiton

5.00(
1
)

Allstate Spray Foam Insulaiton

5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are a family-owned company that has been in the spray foam business for over 20 years serving Fresno, Clovis, Bakersfield, Oildale and surrounding areas of Visalia California for many years. Spray polyurethane foam (SPF) is a spray-applied plastic that is widely used to insulate buildings and seal cracks and gaps, making a building or home more energy-efficient and comfortable. SPF insulation is known to resist heat transfer extremely well, and it offers a highly effective solution in reducing unwanted air infiltration through cracks, seams, and joints.Attic Spray Foam Insulation Did you know you could be losing up to 40% of your homes energy through the attic alone?! Using Spray Foam Insulation in your Attic is the only solution you should be considering to remedy your attic’s insulation needs. The attic is the part of the house which is easily over looked, but it is also the part of the home that is most susceptible to the external temperature changes. If you attic is not properly insulated it can lead to huge amounts of energy loss and the fluctuation of the temperature within your home. Proper attic spray foam insulation serves as the key to limit and control the effect of the external temperatures on your homes interior environment, monthly energy bills and energy loss.

"Rusty Schrader the owner/operator is a life saver and went out of his way to help me. He is very knowledgeable in the business and I highly recommend this company. You won’t find anyone more honest, helpful, and responsive so don’t even bother looking"

Pat F on June 2020

We are a family-owned company that has been in the spray foam business for over 20 years serving Fresno, Clovis, Bakersfield, Oildale and surrounding areas of Visalia California for many years. Spray polyurethane foam (SPF) is a spray-applied plastic that is widely used to insulate buildings and seal cracks and gaps, making a building or home more energy-efficient and comfortable. SPF insulation is known to resist heat transfer extremely well, and it offers a highly effective solution in reducing unwanted air infiltration through cracks, seams, and joints.Attic Spray Foam Insulation Did you know you could be losing up to 40% of your homes energy through the attic alone?! Using Spray Foam Insulation in your Attic is the only solution you should be considering to remedy your attic’s insulation needs. The attic is the part of the house which is easily over looked, but it is also the part of the home that is most susceptible to the external temperature changes. If you attic is not properly insulated it can lead to huge amounts of energy loss and the fluctuation of the temperature within your home. Proper attic spray foam insulation serves as the key to limit and control the effect of the external temperatures on your homes interior environment, monthly energy bills and energy loss.

"Rusty Schrader the owner/operator is a life saver and went out of his way to help me. He is very knowledgeable in the business and I highly recommend this company. You won’t find anyone more honest, helpful, and responsive so don’t even bother looking"

Pat F on June 2020


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!


Avatar for Wildhorse Propane & Appliance

Wildhorse Propane & Appliance

No reviews yet

Wildhorse Propane & Appliance

No reviews yet
46 years of experience

Located in King City, Wildhorse Propane & Appliance is a propane gas delivery service and appliance dealer that supplies home, agricultural, and commercial accounts throughout Monterey and northern San Luis Obispo counties. We have refill stations in Salinas, King City, Soledad, Greenfield, and Paso Robles. Our professional sales and service staff guarantee a hassle free process for all your propane refilling, sales, service, and repair needs.

Located in King City, Wildhorse Propane & Appliance is a propane gas delivery service and appliance dealer that supplies home, agricultural, and commercial accounts throughout Monterey and northern San Luis Obispo counties. We have refill stations in Salinas, King City, Soledad, Greenfield, and Paso Robles. Our professional sales and service staff guarantee a hassle free process for all your propane refilling, sales, service, and repair needs.


Kenneth Chrisman Construction

No reviews yet

Kenneth Chrisman Construction

No reviews yet
24 years of experience

At KCC, we focus on sustainability in the built environment. We try to achieve that through thoughtful planning and execution, fair and ethical labor policies, and bringing as many natural and renewable finishes and materials into our projects as possible.

At KCC, we focus on sustainability in the built environment. We try to achieve that through thoughtful planning and execution, fair and ethical labor policies, and bringing as many natural and renewable finishes and materials into our projects as possible.


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Energy Efficiency Auditing questions, answered by experts

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.

Yes, a dirty air filter can cause a higher electric bill. That’s because clogged filters make it harder for air to flow through your HVAC system, which forces it to work harder and use more energy. According to the U.S. Department of Energy, replacing dirty filters can save you between 5% and 15% in utility costs.

Depending on the level of audit you choose, a home energy audit will at least include a walk-through of the home to determine visible inefficiencies, but may include testing and a highly detailed inspection and report laying out the home’s inefficiencies and providing recommendations to fix those issues. The audit may also include a review of utility bills and mechanical testing. Consult your home energy auditor about the types of services they provide before hiring.

Typically, triple-pane windows made with krypton gas filling are the most energy efficient. A window’s frame, glass, design, and installation all affect its energy efficiency. These windows, in particular, are designed highly effectively in terms of their ability to insulate.

Motion-sensor lights use one watt while on standby and five watts while turned on. They’re usually on for one hour over a 24-hour period, bringing the total wattage to about 28 watts per day. LED lights use around 6.5 to 8 watts while on. If you leave an LED light on all night, with night ranging from 10 to 14 hours, you’re looking at using 65 to 112 watts a night. You can minimally cut your wattage in half by switching to a motion-sensor light.

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

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