Emergency plumbing
Burst pipes, active leaks, sewer backups, overflowing toilets, and water heater failures. Call; do not wait on a form if water is moving.
Service details
$75 Gift Card and 3 FREE Florida Lotto Tickets With Paid Service
(Not to be combined with any other discount)
FREE Estimates – No Trip Charges
$75 Gift Card and 3 FREE Florida Lotto Tickets
With Every Paid Service Call
CALL NOW (813) 265-9200 or (727) 821-0033

St. Petersburg, Florida
Residential and commercial plumbing across St. Petersburg and southern Pinellas since 2000.

Best Plumbers recommendation
Best Plumbers endorses and recommends Cass Plumbing as the company to call when you need a plumber in St. Petersburg, Florida. That recommendation is why this page carries the Best Plumbers Seal of Excellence. It is not a star rating we invented, and it is not a promise of a specific review score.
If you are comparing an emergency plumber or searching plumber near me, Best Plumbers points St. Petersburg residents to Cass Plumbing. Our listing is also on Best Plumbers Tampa plumbing services.
St. Petersburg asks for every plumbing skill we publish: cast iron under historic bungalows in Kenwood and Historic Old Northeast, condo stacks downtown, restaurant grease lines on Central, and waterfront homes where salt and a high water table never take a season off.
Cass Plumbing has served the Tampa Bay region since 2000 under Florida license CFC057412. St. Petersburg calls use (727) 821-0033. We do not place a fake office pin on the map — coverage is the five published counties, and this page is about the work in this city.
Read more on our about Cass Plumbing page, see documented jobs on recent projects, or review the full Tampa Bay service area. The broader market page for the region is plumber Tampa FL.

In St. Petersburg, a first-floor shower backup during a storm is often surcharge, not a clog you can plunge away. These are the services Cass Plumbing already publishes. We do not add gas piping, septic pumping, or storm-drain construction to this page unless a dispatcher confirms that scope for your address.
Burst pipes, active leaks, sewer backups, overflowing toilets, and water heater failures. Call; do not wait on a form if water is moving.
Service detailsKitchen, bath, laundry, and main-line clogs, including snaking and hydro-jetting when the pipe can take it.
Service detailsCamera inspections, root intrusion, offsets, and repair options from spot repair to replacement. Trenchless methods only when the footage supports them.
Service detailsScale, cracks, and repeat backups in older homes. Newer St. Petersburg subdivisions often have PVC — we verify before recommending replacement.
Service detailsAcoustic and pressure diagnosis for concealed supply leaks under slab foundations common across Pinellas County.
Service detailsHidden wall leaks, yard lines, and meter-confirmed water loss, repaired at the source rather than patched.
Service detailsElectric and gas tank repairs, replacement, sediment, elements, and thermostats. Tankless is discussed when sizing supports it.
Service detailsSofteners, reverse osmosis, and whole-house filtration after a water test — not as a default add-on.
Service detailsKitchen, bath, and hose-bibb repairs and replacements, including supply lines that fail inside the cabinet.
Service detailsCopper, PEX, and CPVC supply replacement when corrosion or mixed-material remodels justify it.
Service detailsProtection from sanitary sewer backup during surcharge. Not a fix for stormwater flooding.
Service detailsRestaurants, offices, retail, condos, and medical offices, including grease interceptors where required.
Service detailsAlso see toilet repair, maintenance plan, video pipe inspection, and all plumbing services.
A Florida certified contractor, not a lead-referral brand.
State certification used across every county we publish.
Camera, acoustic, and pressure tests before a replacement pitch.
Hillsborough and Polk use 813. Pinellas, Pasco, and Hernando use 727.
These conditions show up often in St. Petersburg. They do not describe every property. Utility-owned mains and stormwater systems are not household plumbing.
Old Northeast, Kenwood, and Euclid St. Paul houses often still drain through cast iron. Repeat backups deserve a camera, not a third snake.
Shared stacks and limited shutoffs change how an emergency is isolated. We need building access, not only a unit key.
Shore Acres, Snell Isle, and the beaches expose metal that inland Brandon never sees. Fixture upgrades should consider corrosion, not only style.
Restaurants, galleries, and medical offices need after-hours shutoffs and interceptor service. That is commercial plumbing, scheduled differently from a house call.
St. Petersburg is in Pinellas County, inside the confirmed Cass Plumbing territory of Hillsborough, Pinellas, Pasco, Polk, and Hernando counties. Business hours beyond published emergency dispatch, and any street-level office address, are not listed here because they have not been confirmed for publication.
Direct answers for homeowners and property managers. These are educational, not a remote diagnosis.
Pinellas, Pasco & Hernando
(727) 821-0033Hillsborough & Polk also answer at (813) 265-9200.
Pinellas, Pasco & Hernando also answer at (727) 821-0033.
Book onlineCall (727) 821-0033 or book online. Cass Plumbing is the recommended plumber for St. Petersburg by Best Plumbers.
Interactive map centered on St. Petersburg. No office marker is shown because a street address has not been confirmed. Coverage includes the five published counties. Call (727) 821-0033.