Water Heater Installation Cost in Mill Valley, CA
Based on 535 water heater installation building permits filed in Mill Valley between 2015 and 2026, the typical declared project value is $2,957, with most landing between $1,833 and $4,500. These are real records from Mill Valley's public building-permit data, declared job values, not contractor estimates or AI guesses.
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Water Heater Installation values over time in Mill Valley
Median declared value moved from $1,900 in 2020 to $4,000 in 2025, up 111% over that span. Each year below is computed from the filings that actually cleared in Mill Valley.
Recent water heater installation permits in Mill Valley
Actual filings from Mill Valley's public permit records. Declared job values, not final paid prices.
| Filed | Declared value | Work described |
|---|---|---|
| 2026-01-20 | $12,500 | Replace existing boiler and water heater with new combi boiler in same location. |
| 2026-01-20 | $5,574 | CHANGE OUT 50 GALLON TANKED WATER HEATER IN LAUNDRY ROOM AND INSTALL MAIN SHUTOFF VALVE |
| 2026-01-15 | $1,600 | REPLACE 50 GALLON WATER HEATER IN SAME LOCATION |
| 2026-01-07 | $3,000 | Install a 40-gallon water heater in the same location in the garage |
| 2026-01-06 | $2,500 | remove existing gas water heater and install new gas water heater in same location |
| 2025-12-30 | $5,000 | Remove & replace 40 gallon water heater in closet like for like. |
| 2025-12-29 | $2,100 | REPLACE 38 GALLON WATER HEATER WITH 40 GALLON WATER HEATER IN SAME LOCATION |
| 2025-12-23 | $2,700 | REPLACE 50 GALLON WATER HEATER IN SAME LOCATION |
| 2025-12-16 | $3,125 | REMOVE AND REPLACE 50 GALLON GAS WATER HEATER IN HALL CLOSET. LIKE FOR LIKE SAME LOCATION |
| 2025-12-16 | $5,000 | Remove & replace 50 gallon water heater in basement like for like. |
| 2025-12-12 | $5,000 | Remove & replace 50 gallon water heater like for like. |
| 2025-12-12 | $4,000 | Remove and replace water heater in garage with an A.O. Smith 50 gallon tank style gas wate |
| 2025-11-28 | $9,000 | Install new 100A circuit for NEW sub panel in basement level for future proof of new 240V |
| 2025-11-11 | $7,000 | Replace tanked water heater with new 40-gal tanked heat pump water heater in same location |
| 2025-11-03 | $3,460 | REMOVE AND REPLACE 40 GALLON GAS WATER HEATER IN GARAGE. LIKE FOR LIKE SAME LOCATION. |
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Add your price →How to read these numbers
A permit's declared value is the job cost the owner or contractor stated when they pulled the permit. It tracks the real cost of the work but can run a bit under what was actually paid, since it often leaves out some labor and finish costs. Treat the range as a grounded starting point. What water heater installation actually costs in Mill Valley comes down to home size, materials, and scope.
Where this comes from
Every figure is pulled from Mill Valley's public building-permit records and classified by the work described. Nothing is estimated or AI-generated. How the data works. The moment a Mill Valley homeowner adds a real receipt, this page upgrades to show what neighbors actually paid next to these permit values.
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