A whole-home plumbing inspection every two years is a sound maintenance interval for most Denver-area homeowners. If your home is more than twenty-five years old, if you’ve had recurring leaks or water pressure issues, or if you’ve never had a professional inspect the system, scheduling one annually — or starting with one right now — is the better call. Catching a small corrosion issue or a failing water heater anode rod costs far less than repairing water damage after a pipe fails.

What a Professional Plumbing Inspection Covers

A thorough plumbing inspection is more than a visual walk-through. A licensed plumber checks water pressure at multiple points (ideal range is 40–80 PSI for residential systems), inspects supply lines and shut-off valves for corrosion or seeping, looks under sinks and around toilets for slow leaks, tests the water heater’s pressure relief valve and inspects for sediment and anode rod condition, and examines visible drain lines for signs of rust, scale, or improper slope.

In older homes, the inspection also evaluates pipe material. Homes built between the 1970s and 1990s may have polybutylene supply lines, which are prone to failure and were the subject of class-action litigation. Homes built before 1960 may have galvanized steel supply pipes that corrode from the inside, gradually restricting flow. Identifying these materials early lets you plan a repipe on your schedule rather than being forced into it by an emergency.

Colorado-Specific Factors That Make Inspections More Important

Denver’s hard water accelerates scale buildup inside water heaters, on pressure regulators, and on fixture supply lines. Without periodic inspection, a pressure-reducing valve clogged with mineral scale can allow water pressure to creep above safe levels — stressing pipe joints, supply hose connections, and appliance inlet valves throughout the house. A plumber will test PRV output pressure and clean or replace the valve as needed.

Colorado’s cold snaps also matter. Pipes in uninsulated crawl spaces, exterior walls, or attached garages are freeze-risk candidates. An inspection in the fall is a good opportunity to identify vulnerable runs and add insulation or heat tape before temperatures drop.

When to Inspect More Frequently

  • After buying a home — always inspect before your inspection contingency expires, and again in the first year of ownership
  • After any significant freeze event, especially if pipes were near or at freezing temperatures
  • After a major remodel that involved moving walls, adding fixtures, or cutting into existing lines
  • If water bills have increased without a clear explanation — a hidden slow leak can waste thousands of gallons per month
  • If the home has not had a documented inspection in five or more years

Drain and Sewer Lines: a Separate Inspection Worth Doing

A standard plumbing inspection focuses on supply and fixture systems. Drain and sewer lines — especially the underground lateral connecting your home to the city main — warrant their own camera inspection every three to five years in older Denver neighborhoods. Clay-tile and cast-iron laterals are common in homes built before 1980, and both are susceptible to root intrusion and joint separation over time. A sewer camera inspection gives you a definitive picture of what’s inside the pipe without any digging.

How a Maintenance Plan Simplifies Staying on Schedule

The hardest part of plumbing maintenance is remembering to do it. A maintenance membership takes the scheduling burden off your plate — annual inspections are built into the plan, and members typically get priority scheduling and discounts on repairs. For homeowners who want predictable maintenance costs and peace of mind, it is often the most practical approach.

Whether you are overdue for an inspection or just moving into a new home, our licensed plumbers are ready to assess your system and give you an honest picture of its condition. Learn more about our plumbing services, explore pipe and line inspection options, or check out our Care Club maintenance membership to keep your home on a regular schedule.