Resources
Plumbing, Heating and Air Resources
Guides, checklists, and explainers from RT Olson Plumbing, Heating and Air Conditioning on plumbing, water heaters, drains, heating, and air conditioning.
September 12, 2026
Licensed Plumber: What a C-36 Means in California and How to Verify One in 60 Seconds
A C-36 is California's plumbing contractor license. Here's what it covers, which jobs legally require one, and how to verify any plumber's license on the CSLB website in under a minute.
September 8, 2026
How to Pick the Best Plumber Near Me (A Homeowner's 10-Minute Checklist)
Searching for the best plumber near you? Use this checklist to compare quotes, spot red flags, understand flat-rate vs hourly pricing, and hire with confidence the first time.
August 28, 2026
Local Plumber vs National Chain: What Actually Changes When You Call
Who owns the truck, who sets the price, and how dispatch works at 2am, here's what's actually different between a local plumber and a national plumbing franchise before you book.
August 17, 2026
Pipe Burst? What To Do in the First 10 Minutes
August 12, 2026
Low Water Pressure in Your House? Here Are the Usual Suspects
August 9, 2026
Tankless vs Tank Water Heaters: Which Is Right for Your Home?
August 6, 2026
Furnace Repair or Replace? The 50% Rule and Other Ways To Decide
August 3, 2026
Hydro Jetting vs Snaking: Which Drain Cleaning Method Do You Need?
July 29, 2026
How Long Do Water Heaters Last? When To Repair vs Replace
July 27, 2026
7 Warning Signs of a Slab Leak (and What To Do About Them)
July 21, 2026
Chemical Drain Cleaners vs Calling a Plumber: What Actually Works
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