John Stevenson Plumbing Heating Air
2748 Loker Ave W , Carlsbad, CA 92010-6603
BBB Accredited A+ rated. Plumber, Heating and Air Conditioning, Air Conditioning Contractors ...
Serves: 90001, 90002, 90003, 90004 +59 more
Before signing a water heater replacement contract — what to know contract in Los Angeles, know what to look for — scope of work, payment terms, change orders, and warranty clauses. Get quotes from 37 licensed, reputable contractors.
Typical cost in Los Angeles
$800–$3,000 / project
37 contractors in Los Angeles
2748 Loker Ave W , Carlsbad, CA 92010-6603
BBB Accredited A+ rated. Plumber, Heating and Air Conditioning, Air Conditioning Contractors ...
Serves: 90001, 90002, 90003, 90004 +59 more
23342 Madero Ste F , Mission Viejo, CA 92691-2796
BBB Accredited A+ rated. Plumber, Plumbing Renovation, Sewer Cleaning ...
Serves: 90001, 90002, 90003, 90004 +59 more
1425 W 135th St # B , Gardena, CA 90249-2232
BBB Accredited A+ rated. Water Heater Installation, General Contractor, Water Heater Repair ...
Serves: 90001, 90002, 90003, 90004 +59 more
2230 Amapola Ct #6 , Torrance, CA 90501-1441
BBB Accredited A+ rated. Solar Pool Heaters, Water Heater Repair, Tankless Water Heaters ...
Serves: 90001, 90002, 90003, 90004 +59 more
11160 Grace Ave , Fountain Vly, CA 92708-5436
BBB Accredited A rated. Water Heater Dealers, Water Heater Repair, Water Heater Installation ...
Serves: 90001, 90002, 90003, 90004 +59 more
808 Calle Plano , Camarillo, CA 93012
BBB Accredited A+ rated. Water Heater Installation, Water Heater Repair, Water Purification Equipment ...
Serves: 90001, 90002, 90003, 90004 +59 more
20 Goodyear , Irvine, CA 92618-1813
BBB Accredited A+ rated. Water Heater Dealers, Heating Contractors
Serves: 90001, 90002, 90003, 90004 +59 more
2821 Oceanside Blvd Ste H , Oceanside, CA 92054-4874
BBB Accredited A+ rated. Plumber, Plumbing Renovation, Water Heater Repair ...
Serves: 90001, 90002, 90003, 90004 +59 more
3721 North Way , Oceanside, CA 92056
BBB Accredited A+ rated. Plumber, Heating and Air Conditioning, Air Conditioning Contractors ...
Serves: 90001, 90002, 90003, 90004 +59 more
1205 N Melrose Dr Ste E , Vista, CA 92083-3473
BBB Accredited A+ rated. Plumber, Plumbing Renovation, Backflow Testing ...
Serves: 90001, 90002, 90003, 90004 +59 more
623 S Santa Fe Ave Ste C , Vista, CA 92083-5949
BBB Accredited A+ rated. Plumber, Plumbing Renovation, Water Leak Detectors ...
Serves: 90001, 90002, 90003, 90004 +59 more
San Marcos, CA 92078-1410
BBB Accredited A+ rated. Plumber, Plumbing Renovation, Water Heater Repair ...
Serves: 90001, 90002, 90003, 90004 +59 more
| Type | Size | Installed Cost |
|---|---|---|
| Electric tank | 40 gal | $750 – $1,200 |
| Electric tank | 50 gal | $850 – $1,500 |
| Gas tank | 40 gal | $900 – $1,400 |
| Gas tank | 50 gal | $1,000 – $1,800 |
| Gas tank | 75–80 gal | $1,400 – $2,500 |
| Type | Capacity | Installed Cost |
|---|---|---|
| Electric tankless | Whole-home | $800 – $1,500 |
| Gas tankless | Whole-home | $1,500 – $3,500 |
| Propane tankless | Whole-home | $1,600 – $3,800 |
Installation complexity: A simple swap in a garage is cheapest. Closet installs, attic installs, or units requiring new venting or gas line upgrades cost more.
Fuel-type switch: Converting from electric to gas (or vice versa) requires additional work — expect to add $300–$800.
Code upgrades: Older homes may need seismic strapping, an expansion tank, updated permits, or a drip pan — these are typically $100–$300 extra.
Brand and efficiency rating: Standard efficiency units are significantly cheaper upfront than high-efficiency or hybrid heat-pump models, but high-efficiency units save money monthly.
Don't wait for a full failure. A leaking or failed tank can cause thousands in water damage. If your unit is 10+ years old and having issues, get quotes now. Most plumbers can install a replacement within 1–2 business days.
Improper gas connections can cause explosions, fires, or slow carbon monoxide leaks. Licensed plumbers are trained and tested on gas piping, pressure testing, and leak detection. This is not a job for guesswork.
Water heater installations require permits in most jurisdictions. A licensed plumber pulls the permit, schedules the inspection, and ensures the installation meets current code — including seismic strapping requirements (in earthquake zones), temperature-pressure relief valve installation, and proper venting.
Most water heater manufacturers require professional installation by a licensed plumber to maintain the warranty. DIY installation voids warranty coverage entirely.
Improper connections or a failed pressure relief valve can cause flooding. A licensed plumber ensures all connections are tight, the T&P valve is correctly installed and vented, and the drip pan and drain are properly configured.
An undersized heater means cold showers. An oversized one is wasteful. A professional assesses your household's peak demand, number of bathrooms, and fixture usage to recommend the correct capacity and fuel type.
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