
Plumbing & Irrigation in San Diego, CA
Compare 50 plumbing & irrigation contractors near you in San Diego and surrounding area with an average rating of 4.8/5. Get free quotes, read reviews, and find the right pro for your project.
Last updated May 22, 2026
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United Plumbing Heating Air & Electric

Ideal Plumbing Heating Air Electrical

Plumbing Plus
Other Businesses in This Area
All American Plumbing Inc.
5.012½+ years onlineFirst Fire Sprinkler Systems San Diego
5.04 years onlineHydro San Diego Plumbing Services
5.05 mo onlineIrritech Sprinkler Repair
5.0~4 years onlineMorning Dew Sprinklers & Landscaping
5.0Poway Irrigation D.B.A Rudgers Landscape Construction Maintenance
5.0Sprinkler Magic. William Merrill irrigation repair
5.022+ years onlineAmerican Plumbing Co | Plumber in San Diego
4.915+ years onlineBP Plumbing
4.97½+ years onlineCollins Pacific Plumbing, Inc.
4.924½+ years onlineExodus Plumbing
4.9~18 years onlinePaws Plumbing
4.9~8 years onlineAnderson Plumbing, Heating & Air
4.819+ years onlineBill Howe Plumbing, Heating & Air, Restoration & Flood Services
4.829 years onlineCore Plumbing
4.820½+ years onlineElite Rooter Plumbers
4.811½+ years onlineJohn Padilla Plumbing, Sewer and Drains
4.816+ years onlineMueller Landscape Inc
4.817½+ years onlinePacific Sunscapes
4.8San Diego Irrigations
4.8~13 years onlineThe Sprinkler Man
4.88+ years onlinePowers Plumbing
4.71+ year onlineAgustin's Irrigation Service
4.615½+ years onlineSiteOne Landscape Supply
4.630½+ years onlineHeritage Landscape Supply
4.57½+ years onlineHorizon Distributors
4.528½+ years onlineLarson Irrigation Inc.
4.025+ years onlineAgustin's Irrigation Services
3.815½+ years onlinePlumbing & Irrigation in Nearby CA Cities
Other Services in San Diego
Plumbing & Irrigation in San Diego, CA
Plumbing and irrigation work in San Diego is shaped by three factors: the Mediterranean climate, California's strict water conservation rules, and a housing mix that spans 1920s Craftsman bungalows in North Park, 1960s ranch homes in Clairemont, and newer stucco construction in Carmel Valley and Mission Valley. Typical jobs include tankless water heater upgrades, replacing galvanized supply lines in older neighborhoods, drip-irrigation installations that replace thirsty lawns with drought-tolerant plantings, and earthquake-flexible gas line connectors. Slab-on-grade foundations are common here, which means hidden leaks often manifest as warm spots on floors rather than dripping ceilings. Greywater and rainwater harvesting systems have become routine residential upgrades since San Diego passed its 2019 graywater ordinance.
Expect $175-$400 per plumbing service call in San Diego, $2,000-$4,500 for tankless water heater installation, and $3,000-$15,000 for irrigation system replacements that qualify for SDG&E or water district rebates. California requires a C-36 Plumbing Contractor license for any job over $500, and CSLB enforces this aggressively — always verify the license. The City of San Diego requires permits for water heater replacement, gas line work, and irrigation backflow devices. Watering restrictions (currently 2 days/week in most of the San Diego County Water Authority service area) drive strong demand for smart irrigation controllers year-round.
Frequently Asked Questions
- Can I get a rebate for a water-saving irrigation upgrade in San Diego?
- Yes — the San Diego County Water Authority and most city utilities offer rebates of $75-$250 per controller for WaterSense-certified smart irrigation systems, plus up to $2/sq ft for turf replacement with drought-tolerant landscaping. A licensed installer can file the paperwork on your behalf. Rebates are typically paid within 6-10 weeks.
- Why do older San Diego homes still have galvanized pipes?
- Homes built before 1960 commonly used galvanized steel supply lines, which corrode from the inside and reduce flow significantly by year 50-60. Typical symptoms: low water pressure at upstairs fixtures, brown or rust-tinged water after long absences. Replacing a full run in a 1,500-sq-ft house with PEX or copper runs $6,000-$14,000 depending on wall access.
- Do I need earthquake-flexible gas connectors in San Diego?
- California requires seismic gas shut-off valves on all new water heaters and furnaces, and most plumbers include flexible corrugated stainless-steel connectors as standard practice. The hardware adds $80-$150 to a replacement job and significantly reduces the risk of gas leaks during seismic events. Retrofitting an older installation is a 30-60 minute job.
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