Checking a company's license and reviews before you let anyone into your home is a sensible thing to do. This page answers that question directly. Installation Pros is a licensed, family-owned installation and plumbing company based in Fontana, CA. Here is what to know about our license, our reviews, the area we serve and how booking works.
The short answer: yes, we are licensed
Installation Pros holds a C-36 plumbing contractor license from the California Contractors State License Board (CSLB), the state agency that licenses contractors. A C-36 license requires passing a trade examination and carrying a bond.
Our license details:
- License number: CSLB #1091801
- License holder: Installation Pro Plumbing LLC
- Classifications: C-36 Plumbing and C-61/D-34 Prefabricated Equipment
- Check it yourself: CSLB license detail for #1091801
License records can change, so check the current status on the CSLB site before you book, and do the same for any contractor you hire. The CSLB license lookup works for any California contractor.
What the reviews show
When we last counted, on October 10, 2026, Installation Pros had a 4.9-star average rating from more than 1,200 reviews: 1,104 on Google and 184 on Yelp. Those totals count every rating customers left on the two platforms, including star ratings without a written comment, and they change as new reviews come in. Google and Yelp show the current figures.
You can read five-star reviews, with the comments and photos customers posted, on our reviews page. When you read reviews for any installer, look at the recent ones and the ones that describe the actual job: the equipment, the technician and how any problem was handled. Detailed reviews tell you more than short five-star comments.
What a C-36 license covers
The C-36 classification covers plumbing work such as water heater installation, gas line connections, and fixtures like faucets, sinks, disposals and toilets.
Installation Pros also installs kitchen and laundry appliances, and now takes requests for home theater and smart home installation. Those are new services: our team reviews each request and confirms the scope with you.
Service area: six Southern California counties
Installation Pros serves Los Angeles, Orange, San Bernardino, Riverside, San Diego and Ventura counties from Fontana. Include your city and ZIP code in your request, and our team will confirm that your address is within scheduling range.
How booking works
After you request an estimate, our team follows up to confirm scheduling, review equipment fit and coordinate access. That step catches problems before installation day: wrong dimensions, missing parts or access issues that would otherwise mean a wasted trip.
It is also your chance to ask questions before you commit. If you do not know the make and model of your equipment yet, tell our team and we will follow up once you have it.
For a job needed within 72 hours, you can request an emergency install. It is not confirmed until our team calls you, and a 50% surcharge on the total job cost applies if our team accepts the job. Emergency installs are not a 24-hour on-call service.
Frequently asked questions
Is Installation Pros licensed?
Yes. Installation Pros holds CSLB license #1091801, issued to Installation Pro Plumbing LLC, with the C-36 Plumbing and C-61/D-34 Prefabricated Equipment classifications. Check its current status on the CSLB license detail page.
Are the reviews real?
They are ratings customers left on Google and Yelp: more than 1,200 in total, with a 4.9-star average, when we last counted on October 10, 2026. Some include a written comment and some are star ratings only. You can read five-star reviews on our reviews page, or see every review on Google and Yelp.
What counties does Installation Pros serve?
Los Angeles, Orange, San Bernardino, Riverside, San Diego and Ventura. Include your city and ZIP code in your request to confirm scheduling in your area.
What does Installation Pros install?
Kitchen and laundry appliances, water heaters, plumbing fixtures such as faucets, sinks, disposals and toilets, and reverse osmosis systems. Home theater and smart home installation are new services: send a request and our team will confirm the scope.
How do I book an installation or get an estimate?
Request an estimate online or call (909) 768-3650. Our team follows up to confirm scheduling, review equipment fit and coordinate access before the appointment.
Do you offer emergency installation?
You can request an emergency install for a job needed within 72 hours. It is not confirmed until our team calls you, and a 50% surcharge on the total job cost applies if our team accepts the job.