Centennial one-stop, not a commercial clock

Water heater replacement in Centennial

Centennial's review schedule puts a residential water heater on the one-stop list and states one business day. A new house, an addition, and commercial work are longer lists. The city does not sell the water.

The schedule

One-stop items, including a water heater, are described as needing no plan review, with one business day stated. New residential and new commercial are 15 business days after the plan-review fee. Additions are 10. The clock is for a complete submittal, and the city encourages a pre-submittal meeting. Building Division contact on that page is 303-754-3321. Those are the city's figures, not a promise that your heater is approved tomorrow, and not Aurora's same-day request. The comparison guide is heater versus remodel. The city page is Centennial.

Plumber tightening copper water supply pipes with wrench — **Supply line connections:** High-temperature copper and brass joints handle incoming municipal pressure and thermal expansion safely.

The utility is not the city

Centennial does not provide water or sewer. Districts do. Use the property search before you tell a plumber the line is Aurora's or the city's. A like-for-like tank is this page. A tankless conversion still needs the manufacturer's vent and fuel story on the tankless page, even if the city listed "water heater" as one-stop. Ask the counter whether tankless stays on that list.

Plumber adjusting water and gas pipe fittings with adjustable wrench — **Piping and gas load adjustment:** Checking pipe pitch, gas supply sizing, and shutoff valves ensures safe water heater operation.

No price and no referral call are offered here.

Questions to settle first

How long is the Centennial water-heater review?

The schedule says one business day for the one-stop group that includes a water heater, once the submittal is complete. That is not the 15-day new-building line and not a guarantee. Ask the Building Division, 303-754-3321, which list you are on.

Does the city own the water line?

No. The city says it does not provide water or sewer. Identify the district with the property search. Do not use Aurora Water's owner-to-the-main sentence on a Centennial bill. Ask them to write that limit into the quote before you compare it with another company.

Is a bathroom addition the same permit?

No. Additions are on the 10-business-day line in that schedule. A water heater does not pull an addition onto the one-stop list. Price them separately. Ask them to write that limit into the quote before you compare it with another company.

Does one-stop include tankless?

The schedule says water heater. It does not walk through gas-load math the way Castle Rock does for tankless. Ask Centennial whether your tankless unit stays one-stop. Bring the manufacturer sheet anyway. Ask them to write that limit into the quote before you compare it with another company.

Plumbing fittings, shutoff valves, and equipment layout — **Safety valves and relief components:** Temperature and pressure relief valves and expansion tanks protect residential heating tanks from over-pressurization.