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Caulder Electric is your go-to for anything electrical. We analyzed dozens of reviews spanning over 15 years and found the same pattern repeated: Derek shows up on time, quotes the job accurately, and delivers work that holds up. One homeowner's solar system from 2010 is still running flawlessly today, hitting the exact energy savings Derek predicted at install. Another client called them back after five years of projects to handle solar, battery storage, and utility coordination on a historic home with tricky wiring. What stands out most is how they handle complexity without drama. They've wired 600-amp commercial panels, navigated Southern California Edison approvals for solar-plus-battery installs, and diagnosed confusing wiring in century-old homes. In one case, Derek drove out to investigate a suspected mistake from a prior job, confirmed his crew's work was correct, then stayed to walk the homeowner through their kitchen remodel wiring for free. (Yes, he troubleshot someone else's confusion and didn't bill for it.) We couldn't find a single complaint about workmanship, follow-through, or pricing accuracy across the entire review history.
If you want the cheapest quote in town, keep shopping. But if you're looking for an electrician who'll still answer your call 15 years after install and whose estimates actually match the final bill, Caulder Electric is worth the investment.
Pat N. has relied on Caulder Electric for about 11 years, calling them back for everything from replacing switches to troubleshooting difficult electrical line issues. Over that span they handled routine interior and exterior lighting work and, most recently, took on all the electrical for a new-build home: an upgraded service panel plus an extensive solar-and-battery installation. Caulder dug the necessary trenching and dealt directly with Southern California Edison, so the utility coordination didn’t fall on Pat. Whenever a concern popped up, Derek and his crew moved quickly, addressed the problem safely and neatly, and left the job to Pat’s satisfaction. The materials and level of customer service stood out as consistently high, and the team’s honest, straightforward, courteous approach made repeat work easy. The detail that stuck with Pat was the company’s willingness to shoulder complex tasks—like trenching and SCE coordination—so the homeowner could focus on the rest of the build.
Dwight M. hired Caulder Electric in 2010 to design and install a solar system for his home. Derek’s energy‑savings projections matched the actual performance, and the array has run without issues ever since. Fifteen years on he recently replaced the inverters, and he continues to rely on Caulder for all other home electrical work, consistently extremely satisfied. The memorable detail: accurate forecasting up front and long‑term, trouble‑free operation that made later upgrades simple.
Bobby S. hired Derek and his crew for a panel upgrade on his home in Upland a couple years ago, and they finished the job quickly and cleanly. During a recent kitchen remodel he ran into some confusing wiring and feared the original install might have been at fault. Derek jumped on the concern with real urgency, came out to recheck the work, and discovered there was no mistake. Rather than brush him off, Derek spent extra time walking him through what to do in the kitchen to keep the family safe, answering questions and calmly explaining the wiring. Bobby appreciated the patience and kindness, and because Derek willingly revisited the job and helped him understand the safety steps, he and his team remain the first call for electrical work at the Upland house.
Passed screening
Passed screening
Among the longest-standing installers in the market.
Not BBB rated.
Andrew D. has relied on Caulder Electric for years, turning to them for everything from quick home repairs to wiring the new houses he built—and trusting them to install a 600-amp panel in his commercial building. Over multiple jobs he encountered steady, reliable workmanship and crews who handled both small fixes and large-scale wiring without drama. What stood out most was the owner’s straightforward approach and the fact that he keeps his word, which made scheduling and coordination with builders simple. Because of that consistency, he gives Caulder’s number to contractors, neighbors, and anyone else who needs electrical work.
Bobby S. hired Derek and his crew for a panel upgrade on his home in Upland a couple years ago, and they finished the job quickly and cleanly. During a recent kitchen remodel he ran into some confusing wiring and feared the original install might have been at fault. Derek jumped on the concern with real urgency, came out to recheck the work, and discovered there was no mistake. Rather than brush him off, Derek spent extra time walking him through what to do in the kitchen to keep the family safe, answering questions and calmly explaining the wiring. Bobby appreciated the patience and kindness, and because Derek willingly revisited the job and helped him understand the safety steps, he and his team remain the first call for electrical work at the Upland house.
Ryan Z. has kept this solar company on speed dial, sending dozens of clients their way and hiring them himself multiple times. He discovered their installations are consistently solid and their pricing stays reasonable. Because the workmanship holds up and the cost doesn't surprise, he keeps returning to them for both client jobs and his own projects. The lasting impression: they’re not a one-off vendor but a dependable partner he calls back again and again.
M discovered Caulder Electric after buying an old, historic house five years ago and then partnered with Derek and his crew each year to address upgrades, remodels and — most recently — the addition of solar panels and a battery. They worked closely through every project, and the team's care, attention to detail and eye for design kept solutions respectful of the home's character. Derek handled the city and SCE permitting and logistics, taking the bureaucratic burden off the homeowner. More than a typical electrical contractor, the crew offered practical advice and problem-solving that improved both energy efficiency and the house's architectural appearance. After five years of steady collaboration, they ended up with a thoughtfully integrated solar-plus-battery system and a visibly enhanced historic home — a result defined as much by design-minded electrical work as by technical competence.
Dwight M. hired Caulder Electric in 2010 to design and install a solar system for his home. Derek’s energy‑savings projections matched the actual performance, and the array has run without issues ever since. Fifteen years on he recently replaced the inverters, and he continues to rely on Caulder for all other home electrical work, consistently extremely satisfied. The memorable detail: accurate forecasting up front and long‑term, trouble‑free operation that made later upgrades simple.
Pat N. has relied on Caulder Electric for about 11 years, calling them back for everything from replacing switches to troubleshooting difficult electrical line issues. Over that span they handled routine interior and exterior lighting work and, most recently, took on all the electrical for a new-build home: an upgraded service panel plus an extensive solar-and-battery installation. Caulder dug the necessary trenching and dealt directly with Southern California Edison, so the utility coordination didn’t fall on Pat. Whenever a concern popped up, Derek and his crew moved quickly, addressed the problem safely and neatly, and left the job to Pat’s satisfaction. The materials and level of customer service stood out as consistently high, and the team’s honest, straightforward, courteous approach made repeat work easy. The detail that stuck with Pat was the company’s willingness to shoulder complex tasks—like trenching and SCE coordination—so the homeowner could focus on the rest of the build.
At Lotus Construction Group, Paula relied on Caulder Electric so often that the company became one of the team's go-to electricians. She called on Derek and his crew for everything from large construction jobs to small service calls, and they consistently showed up on time and completed quality work. Projects wrapped without surprise costs — staying on budget became the norm rather than the exception. Because she uses them for both company work and her own home, Paula trusts Caulder for honest, reliable electrical work and keeps coming back to the same crew.
On a 103-year-old house that needed a major electrical overhaul, JB hired Caulder to install three EV charging stations, upgrade to a 400A service, and rework the garage for a future ADU. The emergency generator proved a tougher challenge than expected — its automatic transfer switch required detailed troubleshooting and research to repair. Derek and his crew tackled that technical work head-on, executed the upgrades cleanly, and finished the job to a high standard. Next up was an unusually complex wildfire suppression plan: connecting the suppression system to the generator and using the swimming pool as the water reservoir. The site-specific problems were uncommon, but the team worked through each complication and arrived at a workable solution. The element that stands out is Caulder’s ability to pair hands-on craftsmanship with creative engineering to solve tricky, nonstandard problems like a pool-fed, generator-backed suppression system.
Vivek J. needed his garden lights repaired and posted a Yelp project; the company answered immediately and showed up the same morning. He watched the tech diagnose the problem fast, drive off to fetch the exact parts needed, then return and finish the job. The crew worked quickly, stayed professional and friendly, and billed a fair price. He plans to call them again for future electrical work — what stuck with him was the same-day response and that they brought the right parts to complete the repair.
Long-term satisfaction for Caulder Electric holds steady at 5.0 ★. This is better than 76% of installers we looked at.
Long-term reviews carry the most weight in our methodology because they are most representative of what you should be paying for: a system that will perform for years.