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Top-Rated Stereo and home theater system pros in Ontario - Updated Nov 2026

Avatar for Diversified Telecommunications
Diversified Telecommunications
4.3(
262
)
Telephone System - RepairTelephone Jacks and Wiring - Install - For BusinessTelephone System - Install or Upgrade+2 more

Serving Ontario, CA and surrounding areas

Approved

In business since 1988

Free estimates

Warranties offered

"We hired Jose to install a new phone system at my office and I cannot say enough good things about his work. He arrived on time, was professional, and made sure that everything was working before he left. We needed new cabling done, phones to be connected as well as a database hardwiring. I would absolutely recommend Diversified to anyone that is looking for someone who is knowledgeable, professional, and reasonably priced."
Network data cabling
Network data cabling
Network data cabling
Network data cabling
Network data cabling

+3

Response time1 day
Response rate100%
45 neighbors recently requested a quote
Belcom Communications
4.9(
43
)
Telephone System - Repair - For BusinessTelephone Jacks and Wiring - Install - For BusinessTelephone System - Install or Upgrade - For Business

Serving Ontario, CA and surrounding areas

Approved

In business since 2004

Emergency services offered

Warranties offered

"jerry came out and inspected my phone system, let me know which phones were best for my business and installed them as soon as they arrived. couldnt ask for better service"
Response time6 hrs
6 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Mr. Watts Electric
Mr. Watts Electric
5.0(
57
)
Electrical Switches, Outlets & Fixtures - Install or Repair

Serving Ontario, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"Mr. Watts, Ryan Cleary, is very pleasant and knowledgeable. He completed everything we asked for and in a timely manner. Fans, light fixtures, can lighting for kitchen just to name a few. He gave us some good advice on items that need to be addressed. We WILL be calling on him again, in the near future, when we are ready to move forward with those projects. We couldn't be happier with him. Thank you again Ryan :)"
200amp Panel Upgrade
200amp Panel Upgrade
LV2 Tesla Charger
Response time7 hrs
Response rate99%
25 neighbors recently requested a quote
Kevin Hernandez
4.9(
190
)
Electrical Switches, Outlets & Fixtures - Install or RepairElectric Vehicle Charging Station Installation - Materials Provided by ConsumerElectrical Wiring or Panel Upgrade+5 more

Serving Ontario, CA and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"I called for a small electrical job. Kevin came by within 1 1/2after calling. He gave a fair quote and did the job of replacing a timer for my outside lights the same day and completed the job within 40 minutes. Kevin Completed the job to my satisfaction I ask about other electrical work that he preforms He answered all of my questions with satisfaction. I would use Kevin for your home electrical needs."
Response time9 hrs
14 neighbors recently requested a quote
Recommended by92%of homeowners
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FAQs for stereo and home theater system service projects in Ontario, CA

Always start by confirming the pro’s license number, insurance coverage, and experience level. Visit the electrician’s website, scan recent customer reviews, and verify credentials with your local labor department. Request proof of liability insurance and at least two references that you can contact. These quick checks take only a few minutes but go a long way toward ensuring safe, code-compliant work and protecting your home in the event of an issue.

Grouping several electrical jobs into one appointment means you pay a single service-call fee and one set of travel expenses. Instead of asking a pro to return three separate times for outlets, switches, and fixtures, have everything tackled in one visit. The electrician stays productive, and you avoid extra trip charges, often shaving a sizable chunk off the final bill without compromising quality.

DIY electrical work can be dangerous and, in many areas, illegal without a license. One miswired connection risks shocks, fires, or expensive damage. Licensed electricians carry the right tools, follow local code, and know how to shut down power safely before they start. Hiring a pro may cost more upfront, but it protects your home, family, and insurance coverage in the long run.

The Ontario, CA homeowners’ guide to stereo and home theater system services

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