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Backup Generator Installation in San Jose & Santa Clara County

Standby Systems & Code-Compliant Interlock Installations by Licensed Electricians

When Backup Power Becomes Part of the Plan

Power reliability in Santa Clara County has shifted.

Public Safety Power Shutoffs.
Wind events.
Equipment strain.
Increased residential demand.

For many homeowners, backup power is no longer reactive — it’s preventative infrastructure planning.

Dollens Electric installs and services standby generators and code-compliant portable generator interlock systems for homeowners who want their electrical systems handled correctly, safely, and professionally.

Generator Installation & Interlock Systems in San Jose

We provide:

  • Whole home standby generator installation

  • Portable generator inlet installation

  • Generator interlock kit installation (panel-specific)

  • Manual and automatic transfer switch installation

  • Generator-ready panel upgrades

  • Critical load sub-panel installation

  • Ongoing generator maintenance & service

If you are searching for a licensed electrician for generator installation in San Jose or Santa Clara County, we provide full permitting, inspection coordination, and code-compliant electrical integration.

📞 Call (408) 929-6100

“Dollens installed a standby generator for our home after multiple outages. Their crew handled everything—from permits to final testing—with professionalism and care. We now have peace of mind every time the wind kicks up.”
— Olivia C.
Los Gatos homeowner

Two Approaches to Backup Power

Whole-Home Standby Generator Installation

For homeowners who want automatic backup power.

Our installations include:

  • Automatic Transfer Switch (ATS) installation

  • Whole-home or critical load configuration

  • Load calculation and service evaluation

  • Panel modifications where required

  • Permit handling and inspection coordination

  • PG&E interface when applicable

  • Electrical integration for Generac, Kohler, Cummins, and customer-supplied systems

We coordinate gas plumbing with licensed partners to ensure proper fuel supply and compliance.

Backup power starts at the electrical panel. That’s where our expertise lies.

Portable Generator Interlock Installation (When Code Compliant)

A properly installed interlock system allows a portable generator to safely energize designated circuits during a power outage.

We install panel-specific interlock kits that:

  • Prevent dangerous backfeeding

  • Mechanically isolate utility and generator power

  • Meet National Electrical Code requirements

  • Integrate cleanly into compatible panels

Not all panels qualify for interlock systems. We evaluate compatibility and perform necessary upgrades when required.

For many homes, this is the most practical and efficient backup solution.

Generator Maintenance & Service

Installation is only part of responsible backup planning.

We provide:

  • Standby generator electrical diagnostics

  • Transfer switch testing

  • Load testing

  • Circuit verification

  • Electrical component troubleshooting

  • Panel and grounding inspections

Routine maintenance ensures your system operates when it’s actually needed — not just when it’s new.

When a Panel Upgrade Is Required

Some homes require electrical upgrades before generator integration:

  • Service capacity evaluation

  • Main panel replacement

  • Meter/main upgrades

  • Grounding and bonding corrections

  • Sub-panel reconfiguration

We perform these upgrades in-house. No subcontracted electrical work. No shortcuts.

Excellent
Dollens Electric4.7
Based on 153 reviews
James Lord
6 days ago
After receiving several high quotes, Dollins came in and quickly repaired the rodent damage and everything is working great now - nothing to see so no photos
Gayle Schaeffer
2 months ago
Leon Hsing
2 months ago
After Dollens Electric replaced my service panel, I found I couldn't open the panel cover. The culprit was stucco left all over the hinges. I brought this to Jason’s attention, and he promised to send someone out to fix it, but no one ever showed up. I sent another message to follow up and was completely ignored. Very disappointed in the lack of communication and follow-through.
Raul Cortez
2 months ago
Fast professional service great price!👍🏼
Pat Waite
2 months ago
Knowledgable, professional, expert service. Thanks!
Gary Houchins
3 months ago
Outstanding work! Showed up on time completed their work timely. Cleaned up after the job! Very nice personable guys!
Josh Gibson
3 months ago
Dollens Electric exceeded my expectations from start to finish. I called them out to diagnose an issue with my solar inverter that was throwing an error code, and Josh was the technician who handled everything. He quickly identified that one of the electronic boards in the inverter had failed. What really stood out was that he didn’t stop there—he worked directly with the solar inverter manufacturer to secure replacement parts, which I honestly assumed would not be covered under warranty. Josh was upfront about the extended wait time for solar inverter parts, which I appreciated. A few weeks later, he came back—not with just the replacement board, but with a completely brand new inverter that the manufacturer had sent out. He explained that the cost would be slightly higher due to the full inverter installation, but I was more than happy with that outcome considering the upgrade. The level of dedication and professionalism was impressive. Josh completed the solar inverter installation in the pouring rain and even had to return for a follow-up visit when the system didn’t immediately come online. Again, he was out there troubleshooting in the rain without hesitation. On his final visit, he went a step further and checked the solar panel system performance, making sure we were getting proper energy output and educating me on what to watch for with our 10-year-old solar panels. If you’re looking for a reliable electrician, solar inverter repair, or solar system maintenance, I highly recommend Dollens Electric. Josh went above and beyond every step of the way, and it’s rare to find that level of service and commitment. As a bonus, I’d recommend Josh specifically—not just because we share the same name, but because he truly delivered exceptional customer service and expertise.
Shea Pase
3 months ago
Always excellent service. Jason Dollens is always responsive, reliable, and who we call first when a client needs electrical work at their property.
Jacob Browning
3 months ago
Jane Neufeld
4 months ago
Highly recommend Dollens. They showed up on time, prepared with the right equipment which Jason installed quickly and efficiently. I will certainly work with them again.
Debby Loomas
4 months ago
Can't say enough great things about this team! We were referred to them by a friend whose Contact for them in her phone says "My Awesome Electricians" - very true! The entire team, from the office to the junior techs are easy to work with. Unlike many contractors, they communicate clearly and often, about schedule, price, work to be done. And best of all they do EXCELLENT work! They replaced our Zinsco panel which was preventing us from getting homeowners insurance. Everything went smoothly: scheduling, work, inspection and they even have a stucco guy who works with them to do stucco repair when it's all done (he was good too!). Not sure about what happened with the 1-star reviews they received on Yelp because this local family owned business is well run, honest and very talented. They are very skilled and no, not cheap, but they charge a fair price--we got several quotes and they were all similar. Want it done right the first time? These are the guys to hire. Thank you Jason, Josh, Elijah, Brian and Josephine - you're now in our contact list as My Awesome Electrician too!
David Ta
5 months ago
Regina Garabedian
5 months ago
Joshua came soon after calling to make an appointment, expeditiously assessed the problem with the circuit breaker, and added a surge protector in the main panel. Part of the problem was needed to be remedied by PG&E, and he was able to ascertain their service in the afternoon. All in all, the matter was quickly resolved.
Rosalie Govek
5 months ago
I have used the services of this company twice in the last year. Each time I have been blown away with the expertise, work ethic and diligence to complete jobs with total customer satisfaction. Their pricing is also a plus! I whole heartedly recommend this local family business whose motto should be “ Work done with pride and excellence”!
Chuck Salah
7 months ago
Great Company, very happy every time they do work for us.
Steve Onishi
7 months ago
I needed to upgrade my electrical panel. Dollens Electric did a load calculation and recommended a new panel that would accommodate the electrification of my furnace and water heater down the road. They were prompt initiating and completing the upgrade. Their communication was excellent.
Scott Chou
8 months ago
Fixed my problem and replaced my electronic door lock promptly.
Louise Beattie
8 months ago
Jason is very creative and found the answer to a problem several other electricians couldn't find.
Hector Elizondo
10 months ago
I recently hired Dollens Electric for several electrical projects in my home, and I couldn't be more impressed with the quality of work and professionalism displayed throughout. Projects Completed: -Electric water heater installation -Circuit breaker panel upgrade -Electric dryer wiring and connection From the initial consultation, it was clear I was working with a true professional. They took the time to explain each project in detail, answered all my questions patiently, and provided transparent pricing with no hidden fees. What stood out most: The water heater installation was flawless. They ensured everything was up to code, properly grounded, and functioning perfectly. The attention to safety details gave me complete peace of mind. The circuit breaker upgrade was handled expertly. They assessed my home's electrical needs, recommended the right capacity, and completed the work efficiently while keeping the disruption to my daily routine minimal. For the dryer connection, they ran wiring cleanly and professionally, ensuring proper voltage and a safe, reliable connection. Everything was tested thoroughly before they considered the job complete. Throughout all three projects, they maintained a clean work area, showed up on time, and demonstrated exceptional craftsmanship. I'll definitely be using them for all future electrical needs!
Michael Y.
10 months ago
We used these folks to install an EV car charger. They were recommended by VW. Their service was excellent. The owner came out to give us an estimate and...
Swaroop Kalasapur
11 months ago
Very positive experience with Dollens Electric! Came back from out of town on a Friday evening to find the garage without power. Jason from Dollens walked me step by step through all the trouble shooting over the phone to spot the issue and resolve it within minutes. I am going back to them for all my Electrical nees!
Maggie Brady
12 months ago
Update 8/2025 Still my go to electrical contractor. On time, plenty of communication, professional. Converting from propane to an electric BBQ (firewise change). Needed a new outlet on a 20 amp circuit that had an old 15 amp style socket. These are the guys I trust to keep us safe. Update 9/2020 - Upgraded some thermostat wiring for me with a difficult routing. Professional and quick. Update - Jason and Josh again came through for me. In the midst of a heat wave, they were able to come to the other end of the county and fix an electrical problem at my mother's house. Got the outlets for the portable AC and lift chair back working and made the wiring safer to boot. Original - Could not ask for better. Jason installed a new 40 amp circuit and an EVo charger for our car. (No more slow 110 charging. Yeah!) While working in our breaker panel he noted a dangerous situation left by a previous contractor who upgraded our air conditioning. (Side note kind of disappointing the inspector didn't notice that the other contractor put in a bigger breaker on a wire that was too small. Luckily the wire insulation had just started to bubble and it didn't catch fire.) Within a week they were able to fit us in to replace the faulty circuit as well as rewire our garage lighting to eliminate some creative but scary runs of extension cords and re-purposed outlets. Now I have bright lights and when I look up, I don't see wires draped everywhere. We connected with Jason of Dollens Electric through our equally excellent general contractor Dan Mackey. (Who by the way had nothing to do with the faulty circuit or the creative garage lighting.) Lastly a thank you to Jason's son Josh who got to do the crawling under the house.
Allan Hulgan
12 months ago
very professional yet friendly Looking forward to continuing with Dollens Electric
Michael Lamb
1 year ago
They put in a ceiling fan for us and did a good job at a reasonable price. They are a great family company. I would definitely use them again.
Harry Hoang
1 year ago
Great service in installing an EVSE in my home. Very knowledgeable and explained the installation process.
Kyle
1 year ago
After my car charger arrived I scheduled an appointment for the install, and Joshua came a couple days later. He was on time, knowledgeable, very professional, and did an amazing install of my Wallbox and Powermeter for a great price. I appreciated that he offered to install the power wires through the back for a cleaner install. He also explained to me what he was doing, and gave me chances for input on how everything should be laid out on the wall. I had a hard time finding a contractor who wanted to install a power meter for dynamic energy monitoring over an expensive DCC. On my first call with them they recommended an Emporia Pro which is the cheapest option for dynamic load management, so I knew that they had the best for the customer in mind. I decided to go with Wallbox's offering instead; although I picked a less common method for dynamic load management Joshua had no issues wiring everything and it was great to see that he took in my input instead of just telling me I had to install a costly DCC. I also liked that he already had a lot of prior experience installing Wallbox's car charger. Thank you for an amazing install. Support Local!
Freda Hudson
1 year ago
Called for an estimate and Jason came out the next day and we received the estimate within a few hours. The work began two days later. Josh was very good at explaining what he was doing and let us know if something he saw was concerning. Both Josh and Brian were very neat and left the job site clean. The estimate was very clear as to the cost of each part of the project. The final cost was exactly what was estimated. Also received a senior discount, which was very much appreciated. Thanks to Jason, Josh and Brian.
Dennise Carter
1 year ago
Dennise Carter
1 year ago
Joel Zizmor
1 year ago
Highly efficient service. Provided the best solution to charge our new Tesla avoiding purchase of a costly charger. Installed a 50amp line and outlet. Highly recommended.
Public Brady
1 year ago
Used again today to troubleshoot a couple of problems (Solved) and replace a ceiling fan (looks and works great). These guys are still the best. I was pleased when they briefly reviewed an installation manual to make sure they remembered exactly how the brand worked. It was obvious Joshua already knew how to make the installation but he doubled checked anyway. (I'm glad I'm not the only person who still refers to a manual.) Call/use them; you won't be sorry.
Linda Lampros
1 year ago
Jason is the BEST
CARL DESOUSA
1 year ago
Olivia Chen
1 year ago
Dollens Electric installed a natural gas fired standby generator for me in May Last year. Jason called me and came to service the unit. The generator works like a charm every time we had PG&E outage. The best thing I have ever done for myself. They are professional and efficient. Unlike a lot of contractor, there was no fuss.. it is a large generator, they got it in a tight spot, yet met all the codes. Very nice.
Jack Moorman
1 year ago
Dollens Electric did a great job for us in setting up the irrigation system for the Christmas Tree Farm.
Shravan Pai
1 year ago
Service was excellent and professional. Jason and Josh answered all my questions and gave good feedback. I will use again. Thank you!
Stephen Loupe
2 years ago
The electrician, who is a son of the owner, was extremely knowledgeable, professional, prompt and expedient. He offered several options to my service request, but did so without pressure of any kind. The job was done quickly and with perfection. I highly recommend.
Peter Seimas
2 years ago
Excellent Service
karen johnson
2 years ago
Great service -- all of the above
Ken McConnell
2 years ago
Paul Y
2 years ago
Very thorough and informative whole house fan, chandelier and kitchen hood thru roof job. Josh explained in details and provided suggestions to protect my old circuits also.
Katie Taylor
2 years ago
Wanted to replace very old track lighting in living room with can lights. Submitted an estimate request on a Sunday night, Jason came out first thing Monday morning to check out the project and provided a timely and reasonable estimate later that day and followed up with a phone call. Work was completed today, one week later! Josh, Elijah, and Ricky were respectful of our home, took great care to keep things clean and were very pleasant. I don't know why we put this project off for so long! We finally have decent lighting in our living room! Will definitely use Dollens Electric for any future home projects/maintenance!
Renee Lewis
2 years ago
Dick mendoza
2 years ago
Punctual and thorough service with helpful future maintenance ideas.?
Don M.
2 years ago
I highly recommend Dollen Electric. I called two other electricians and left a message to call back. They never did. However, Dolan Electric immediately...
J
2 years ago
Trustworthy very much describes Dollens Electric. Jason and his team including Josh and Elijah are reliable, honest, and efficient. I have used Dollens for major and small jobs and they stand by their work and rightfully so. Don't be fooled by cheap quotes that lure you in with the thought of getting major work done for a cheap cheap price. You get what you pay for and with Dollens, you get a great job for a fair price. Dollens is my go-to electrician.
Justin K.
2 years ago
Trustworthy very much describes Dollens Electric. Jason and his team including Josh and Elijah are reliable, honest, and efficient. I have used Dollens for...
Val
2 years ago
Very professional and friendly.
Eric N
2 years ago
This guys are great! I got some problems with my electric and called them, they just led me do something with it, figured out my problem just a minute, I didn’t spend anything, thanks
Bruce Fox
2 years ago
Richie M.
3 years ago
Thank You , Jason & Joshua for your professional electrical service for replacing my outdated challenger electrical panel ! Just wanna let everyone know ,...
Rob V.
3 years ago
I have been using Dollens for all my electric work (both repair and installation) in my house for over five years. They work well and quickly, offer...
Linda Merrifield
4 years ago
recommends
Great experiece with Dollens knowledgeable professionals ! They went above board to make sure every thing was done to perfection !
Scott Williamson
4 years ago
recommends
Excellent service & very competitive pricing. Would definitely use Dollens again & recommend them to others.
Craig Warp
4 years ago
recommends
Very pleasant and professional, but very expensive for 20 minutes of work.
Chris B.
4 years ago
Dollens Electric is exceptional. They give an accurate read on what needs to be done. They are a safety-first company that shows up energetic & work...
Alfredo Boron
5 years ago
recommends
Great experience, Jason was professional, courtesy and knowledgeable and was able to address our issue. He also advised us on how to better safeguard our home. Thank you
James Lee Lucier
5 years ago
recommends
Very easy to work with. Good suggestions were offered. Work is always first-rate.
May Villanueva Woodward
5 years ago
recommends
Josh & Elijah did excellent work in replacing our electric panel. They were polite, professional & answered any questions I had. The work area was cleaned after they left. They even cleaned out my rain gutter & spout - above & beyond service!!
M W.
5 years ago
Josh & Elijah replaced our electrical panel. They were both professional & answered any questions I had. Their work area was cleaned after they were done....
Joel Z.
5 years ago
Installed a whole house fan that is quiet and effective. Greatly reduces A/C cost. Workers are fast and efficient and cleaned up 100%. Quality products.
Jim L.
7 years ago
This company is great. They were always on time and great at communicating both time estimates and costs. They are very thorough, knew current codes inside...

Fuel Types & System Planning

We work with:

  • Natural gas standby systems

  • Propane standby systems

  • Portable gasoline generators (with safe interlock integration)

We coordinate gas plumbing with licensed professionals when required to ensure safe and compliant installations.

Frequently Asked Questions

Do I need a permit for generator installation in San Jose?
Yes. Electrical permits are typically required. We handle permitting and inspections.

Can I connect a generator directly to my panel?
No. Backfeeding a panel is unsafe and illegal. An approved interlock or transfer switch is required.

Do you install Generac generators?
We install Generac and other major brands, as well as customer-supplied systems. Our focus is proper electrical integration.

Do you service generators you didn’t install?
In many cases, yes. We evaluate the existing installation and provide electrical diagnostics and maintenance services.

Do I need to upgrade my panel first?
Sometimes. We evaluate your service capacity and panel condition before recommending integration.

Professional Backup Power Integration

Backup systems should be installed with the same care as a service upgrade.

We approach generator installation as part of your home’s electrical infrastructure — not as an accessory add-on.

If you are considering backup power, we evaluate:

  • Panel capacity

  • Service rating

  • Grounding and bonding

  • Critical load planning

  • Permit scope

  • Fuel coordination

No oversizing.
No unnecessary equipment.
No rushed installations.

Just properly integrated backup power installed by licensed electricians.

Schedule a Generator Consultation

Call (408) 929-6100
Or request an estimate online

Ideal Homes for Backup Power Installation

Backup systems are commonly installed in:

  • Larger single-family homes

  • Homes with upgraded 200A+ service

  • Properties with home offices

  • Homes with refrigeration, sump pumps, or medical equipment

  • Older estates undergoing electrical modernization

We frequently serve homeowners in:

San Jose | Santa Clara | Cupertino | SunnyvaleCampbell | Los Gatos | Saratoga | Mountain View | Morgan Hill | Gilroy | Los Altos | Surrounding South Bay Areas

We accept most major forms of credit cards, including Visa and MasterCard.

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