Hour-by-hour walkthrough of a standard tank-for-tank water heater replacement in the Oklahoma City metro. Pre-arrival prep, water shutoff timing, what gets installed, what gets tested, and what we leave you with at the end.
Standard tank-for-tank replacement timing. Older homes with non-standard configurations (tight closets, missing expansion tanks, undersized B-vents) add scope and time; your tech will give you a specific timeline before starting based on what they see at your home.
Clear clutter around the existing water heater. Clear the path between the front or garage door and the install location of anything large (storage bins, vehicles, furniture). If pets are in the home, plan a contained space — front doors will be opening as equipment moves in and out.
Your tech dispatches with an on-the-way text so you know they are headed to your home. An arrival text fires when they pull up. Earliest standard install start time is 9 AM; your exact window was confirmed when the install was scheduled.
Boot covers on. Tech walks the install location with you, confirms the scope from your written quote, points out what is about to happen, and asks any final questions. Drop cloths down on flooring that could be damaged. Old equipment area cleared of anything still in the way.
Cold water supply to the heater shuts off. Power or gas to the unit is isolated and locked off. The existing tank is drained through the existing drain valve (often slowly — drain valves on old tanks on OKC hard water can be sediment-choked, which is one of the reasons replacement made sense). Once empty, supply, gas, and vent connections come apart and the old tank is moved out.
New tank goes in. Modern flex connectors on supply lines. Expansion tank installed if your home does not already have one (required by current OKC code on closed plumbing systems). Drain pan with proper drain line installed where required (garage and second-story installs). T&P valve installed and pointed to the proper discharge location. Seismic strapping where required. Venting verified or upsized.
Cold water supply back on. Tank fills (your water service is back at this point). Power or gas restored. Tech runs a leak check on every connection — supply, drain, T&P, expansion tank. On gas units, a combustion check verifies proper draft and burn. Thermostat is calibrated to your preferred temperature.
Tech walks you through the operation of the new unit — thermostat, what to watch for, maintenance schedule. Manufacturer warranty is registered with the brand before the tech leaves. You receive the registration confirmation by email or text the same day. Old tank is loaded for proper disposal at a certified recycling facility. Drop cloths up, boot covers off, work area cleaned.
One firm written number on your quote covers all of the items below. No add-ons appear at the end of the install.
Bradford White (Good), AO Smith (Better), or GE (Best) — the tier from your written quote. We stock all three for same-day installation in most cases.
Disconnect, drain, haul away, proper disposal at a certified recycling facility. Same visit.
Supply and gas connections updated to current code regardless of what was there before.
Required by current code on closed plumbing systems in the OKC metro. Most homes built post-2010 have one; many older homes do not.
Required on garage and second-story installs. We add one where missing.
Temperature and pressure relief valve installed with the discharge line pointed and supported per code.
Code-required straps for properly secured tank installation.
Atmospheric or power-vent tanks: vent sizing checked against the new unit's draft requirements. We upsize where the existing vent is too small for a high-recovery replacement.
We pull the plumbing permit, schedule the inspection, and meet the inspector on site. Permit fee included in your quoted price.
Leak check on every connection, combustion check on gas units, thermostat calibration to your preferred temperature.
Filed by us before we leave the property. You get the confirmation in writing the same day.
Operation, recommended maintenance schedule, what to watch for, and a real conversation — not a handed-over manual.
The timeline above is the standard. A few common scenarios add scope and time, and your tech will walk you through any of these during the in-home assessment so the quote covers them:
Full service page with brand tiers and details
Real installed-price ranges + what drives the variance
Universal 10-step journey from first call to walkthrough
Workmanship + manufacturer warranty terms
Payment plans available on installation projects
A different scope and timeline if you are switching to tankless
Free in-home assessment. Written quote the same day. Most replacements complete the day after the assessment.
Call (405) 656-7895