Water Heater Installation & Replacement in West Valley City, UT
Replacement is not just swapping a tank. Expansion control, venting, seismic strapping and a pan piped somewhere sensible are what stop the next one damaging your house.

Water heater replacement is one of the most commonly botched jobs in residential plumbing, precisely because it looks simple. Disconnect the old one, connect the new one, done. The parts that get skipped are the parts that matter in five years: thermal expansion control, correct venting, a drain pan actually piped to somewhere useful, and seismic strapping.
We install gas, electric and hybrid heat pump units, in the size and recovery rate the household actually needs rather than whatever was there before. If your old unit was undersized and you have been running out of hot water for a decade, replacement is the moment to fix that, and the incremental cost is small.
Every install is permitted and inspected, which is a requirement here and also a genuine protection: the inspection catches venting and expansion issues, and the paperwork matters when you sell. Most replacements are completed the same day we are called.
What is included
What a proper installation includes
- The right size and recovery rate. Sized on household demand and fixture load, not simply matched to the old unit.
- A thermal expansion tank. Required on a closed system, and the reason many T&P valves drip. Sized and pre-charged to your actual static pressure.
- A drain pan piped to a safe discharge. A pan that drains nowhere is decoration. Ours goes somewhere the water can do no harm.
- Correct venting. Right size, right slope, right connection, checked for draft. This is a carbon monoxide issue, not a paperwork issue.
- Seismic strapping. Two straps at the upper and lower third of the tank. Required in Utah for good reason.
- New shutoff and flexible connectors. Old connectors are never reused. A serviceable cold-side shutoff goes on every install.
- Permit, inspection and haul-away. We pull the permit, meet the inspector, and take the old unit with us.
Sizing
What size water heater you actually need
Capacity matters, but so does recovery rate — how fast the unit reheats. Gas recovers roughly twice as fast as electric for a given tank size.
| Household | Gas tank | Electric tank | Notes |
|---|---|---|---|
| 1–2 people | 40 gal | 40–50 gal | Single bathroom, standard fixtures. |
| 3–4 people | 40–50 gal | 50–65 gal | The most common West Valley City sizing. |
| 4–5 people | 50–65 gal | 65–80 gal | Two or more bathrooms in regular morning use. |
| 5+ or a large soaking tub | 75 gal | 80 gal or two units | Consider tankless instead. |
Multiple simultaneous showers, a jetted tub or a high-flow shower system all push you up a size.
The install
How a replacement day runs
Assess and confirm
Size, fuel, venting route, space and pressure checked. Permit pulled and the unit collected.
Drain and remove
Old unit isolated, drained, disconnected and taken out without dragging water through the house.
Install and connect
New unit set, pan fitted and piped, connections made, expansion tank fitted, straps on, vent connected and checked.
Fill, test, inspect
Filled, purged, temperature set, draft tested, then inspected and signed off.
Costs
Water heater replacement costs in West Valley City
| Unit | Typical installed price | Notes |
|---|---|---|
| 40 gal gas | $1,500 – $2,200 | Standard atmospheric vent replacement. |
| 50 gal gas | $1,700 – $2,600 | The most common replacement here. |
| 50 gal electric | $1,400 – $2,200 | Simpler install, slower recovery. |
| 75 gal gas, high recovery | $2,300 – $3,600 | Larger households. |
| Power-vent gas | $2,200 – $3,400 | Where atmospheric venting is not available. |
| Hybrid heat pump | $2,800 – $5,200 | Before rebates. Needs space and air volume. |
| Tankless conversion | $3,500 – $7,500 | See tankless. |
| Add expansion tank | $220 – $420 | Included in most of our installs. |
| Add or upgrade drain pan and line | $180 – $500 | Where none exists or it drains nowhere. |
Includes supply, fit, removal of the old unit, permit and inspection. Typical local ranges, not quotes.
Watch out for
Corners that get cut on cheap installs
- No expansion tank on a closed system. Produces a dripping T&P valve, stresses fittings and shortens the life of the tank.
- Reused flexible connectors. They have a service life, they are inexpensive, and a failed one floods the room.
- A pan that drains nowhere. Fine until the tank fails, at which point it overflows in about three minutes.
- Improvised venting. Wrong diameter, insufficient rise, or connected into an inappropriate flue. This is the one that can hurt someone.
- No seismic strapping. Required here, and the strapping also stops the unit walking on its connections over time.
- No permit. It shows up on the inspection when you sell, and by then it costs far more to resolve.
FAQ
Water Heater Installation & Replacement: your questions answered
Can you replace my water heater today?
Usually yes. We stock the common tank sizes in gas and electric, and most straightforward replacements in West Valley City are completed the same day we are called. Tankless conversions and hybrid units generally need to be scheduled.
How long does a replacement take?
A like-for-like tank swap is typically two to four hours. Changing fuel type, relocating the unit, converting to tankless or upgrading venting all add time, and those are usually half to full day jobs.
Do you take the old one away?
Yes, removal and disposal is included in the price.
Should I replace with the same size?
Only if the old one was actually meeting your needs. Replacement is the cheapest opportunity you will ever have to fix an undersized heater, and the cost difference between a 40 and a 50 gallon unit is small compared with another decade of running out of hot water.
Gas or electric?
If you already have gas at the unit, gas is usually cheaper to run and recovers roughly twice as fast. Electric is cheaper to install and simpler, and a hybrid heat pump is far more efficient than standard electric if you have the space and can accept that it cools the room it is in.
Do I need a permit?
Yes. Water heater replacement is permitted, inspected work in West Valley City. We handle the permit and the inspection appointment as part of the job, and you get the signed-off paperwork.
What temperature should it be set to?
120°F is the usual recommendation: hot enough for household use and for controlling bacterial growth in the tank, without the scalding risk of higher settings. Higher settings also accelerate scale formation in hard water.
Related plumbing services
Water heater on its last legs?
We will size it properly, install it correctly and pull the permit. Same-day replacement available across West Valley City.