Business Details
50+ Years
experience
Emergency
services
Your Trusted HVAC, Solar & Generator Experts in Lake County
Jonas Energy Solutions has been a trusted name in Lake County, CA, for over 85 years, providing comprehensive heating, air conditioning, solar, and generator services. Founded in 1935 by Jim Jonas, our family-owned business has evolved from an oil distributorship to a full-service energy solutions provider, serving residential and commercial clients across Northern California. Our team of factory-trained technicians specializes in HVAC installation, maintenance, and repair, along with solar panel systems, whole-house generators, and energy-efficient water heaters. We pride ourselves on upfront pricing, no sales pressure, and a 100% satisfaction guarantee, backed by decades of local experience and a deep understanding of our region's unique climate challenges.As active community members, we support local organizations, youth sports teams, and emergency services, reflecting our commitment to positive change. Our commercial services extend the same reliability and expertise to businesses, ensuring uninterrupted comfort and energy efficiency. With a focus on green energy solutions and self-sustaining systems, we continue to innovate while maintaining the high standards of service that have defined our reputation for generations.
Services
Air Conditioning
Heating
Solar Panels
Generators
Water Heaters
Ductless Systems
Commercial HVAC
Details
- Year established: 1935
Highlights and features
- We offer 85+ years of local energy solutions expertise
- Our team includes factory-trained HVAC and solar specialists
- We guarantee 100% satisfaction with all services
- We provide 24/7 emergency service availability
- We maintain a 4.9 Google rating from 820+ reviews
Associations and certifications
- C46: Solar
- C20: HVAC
- C10: Electrical
What people say
Very professional
Knowledgeable technicians
Responsive service
Same day appointment
Helpful explanations
Services
Air Conditioning
Jonas Energy Solutions provides comprehensive air conditioning services including installation, maintenance, and repair of central air conditioners, ductless mini-split systems, and evaporative coolers. Our factory-trained technicians ensure optimal performance and energy efficiency for residential and commercial properties in Lake County's variable climate. With 85 years of local experience, we specialize in solving complex cooling challenges while maintaining indoor air quality through proper filtration and ventilation systems.
Heating Services
We offer complete heating solutions including oil heating systems, furnaces, heat pumps, and ductless mini-split installations. Our team addresses unique climate challenges in Lake County with customized heating systems that maintain efficiency and comfort. With decades of experience, we provide expert maintenance and emergency repairs, ensuring reliable operation during colder months while optimizing energy consumption through advanced thermostat technologies and system diagnostics.
Solar Installation
Our solar energy solutions include grid-tied and ground-mounted solar panel installations, battery storage systems, and comprehensive maintenance programs. With SolArk certification, we design systems that reduce energy costs while maintaining grid connectivity for backup power. Our experts handle complete system integration with existing electrical infrastructure, ensuring maximum energy production and return on investment for residential and commercial clients in Northern California's sunlight-rich environment.
Generator Services
We provide whole-house generator installations, maintenance, and emergency repair services for residential and commercial clients. Our technicians specialize in automatic standby systems that ensure uninterrupted power during outages, with proper sizing and integration with existing HVAC systems. With 24/7 emergency service availability, we offer annual maintenance plans that include performance testing, oil changes, and system diagnostics to guarantee reliable operation when needed most.
Water Heater
Our water heating solutions include tankless, hybrid heat pump, and traditional tank systems with installation, repair, and maintenance services. We specialize in energy-efficient models that reduce utility costs while ensuring consistent hot water supply. Our technicians address common issues like sediment buildup, leaks, and temperature inconsistencies, offering annual maintenance plans that extend equipment lifespan and maintain manufacturer warranties through proper servicing and component replacements.
People
Jim Jonas
Founder
Fourth-generation energy expert who transitioned from Union Oil distributorship to HVAC and solar solutions in 1935, establishing Jonas Energy Solutions' legacy of community service and technical excellence in Lake County.
Questions
What HVAC services do you offer?
We provide full-service HVAC solutions including installation, repair, and maintenance of air conditioning, heating systems, ductless mini-splits, and indoor air quality equipment for residential and commercial properties.
Do you service solar panel systems?
Yes, we offer complete solar services including panel installation, inverter replacement, system performance optimization, and maintenance plans with cleaning and efficiency monitoring for maximum energy production.
Are financing options available?
We offer multiple financing programs through Synchrony Bank, GoGreen, and Redwood Credit Union for HVAC upgrades, solar installations, and generator purchases with flexible payment terms.
What areas do you service?
We serve all Lake County communities including Lower Lake, Clearlake, Lakeport, Kelseyville, Middletown, and extend to parts of Napa and Mendocino Counties with prompt service availability.
Do you offer emergency service?
Yes, we provide 24/7 emergency HVAC, generator, and water heater service with technicians on call for after-hours, holiday, and weekend emergencies throughout our service area.
What maintenance plans are available?
We offer comprehensive maintenance agreements with annual HVAC tune-ups, generator servicing, and solar panel cleaning programs that include parts discounts, priority scheduling, and performance guarantees.
Reviews (5)
Rosalyn W.
Oct 28, 2021
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Good experience working with Jonas Energy Solutions. During the record breaking Memorial Day heatwave I couldn't take the humidity any longer. Once it hit 107 degrees I knew I needed a change. I called Jonas on the weekend when everybody was off for the holiday. Their answering service picked up and was polite and helpful. When they reopened after the holiday, I called first thing. Their dispatch fit me in with a last minute, same day consultation. I was so grateful. My consultation with Tyler went wonderfully. Tyler is well informed on the heating and cooling systems and good at answering
Conrad W.
Oct 16, 2021
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We had our units serviced today. They were prompt, polite & very conscientious of putting our home back together after they were finished! Highly recommend the platinum service plan!!
Michelle
Aug 28, 2021
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Positive:Professionalism,Punctuality,Quality,Responsiveness,Value
WOW!!! What an awesome group of people...smart efficient and friendly! Thank you Russ and Edgar for squeezing me in last minute on a Friday!! You guys are amazing!
Service:HVAC repair
WOW!!! What an awesome group of people...smart efficient and friendly! Thank you Russ and Edgar for squeezing me in last minute on a Friday!! You guys are amazing!
Service:HVAC repair
Annette Higday
Aug 22, 2021
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Positive:Professionalism,Punctuality,Quality,Responsiveness,Value
Jessie responded to our late call with grace and expertise!!! We highly recommend getting the service plan with Jonas- the security of having the quick response (and fix of our a/c!!!) is priceless.
Service:AC repair
Jessie responded to our late call with grace and expertise!!! We highly recommend getting the service plan with Jonas- the security of having the quick response (and fix of our a/c!!!) is priceless.
Service:AC repair
Taurus B.
Jul 25, 2021
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Overpriced, slow, many excuses, not available for quick or emergency services, full of themselves, not competitive, inflexible, and overbooked. Finally came over, gave high estimate, only willing to sell one brand, no appointments for install for 2-3 weeks. Said they had a "shortage" of installers and servicepeople... If it is as hard to work for Jonas as it is to get help from them, I understand their labor problem...
Don't use these guys, unless you like to pay double.
Update:
There is a "response" from management, once again, they said they had nobody to help due
Don't use these guys, unless you like to pay double.
Update:
There is a "response" from management, once again, they said they had nobody to help due
