Purchasing a home with a private water well can be an excellent investment—especially in rural North Houston where municipal water may not be available. But unlike city water, where quality and infrastructure are managed by a public utility, a private well puts the responsibility entirely on the homeowner. A thorough well inspection before closing is not just recommended; it's essential for protecting your investment and your family's health.
What a Well Inspection Covers
A professional well inspection from 77 Water Well Inc. evaluates the entire system from the ground down. We don't just glance at the wellhead—we conduct a detailed assessment that includes the physical well structure, mechanical components, water quality, and operational performance.
The Wellhead and Casing
We start at the surface by inspecting the well cap, casing, and seal. The cap should be tightly secured with no cracks or damage. The casing must extend at least 12 inches above ground level to prevent surface water intrusion. We check for corrosion, pitting, or structural damage that could allow contaminants into the well. If the well has a pitless adapter, we verify it's functioning properly and not leaking.
Pump Performance Testing
We test your pump's flow rate in gallons per minute (GPM) and compare it to the pump's rated capacity. A pump producing significantly less than its rated output may indicate wear, improper sizing, or a declining water table. We also measure the amp draw of the pump motor to detect electrical problems before they cause a failure. A healthy submersible pump typically draws within 10% of its nameplate amperage.
Pressure System Evaluation
Your pressure tank and switch work together to maintain consistent water pressure. We test the tank's air charge, inspect the pressure switch for corrosion and proper operation, and verify that the system cycles within the expected range. A waterlogged pressure tank or faulty switch will cause pressure problems and premature pump wear.
Water Quality Testing
We collect water samples and coordinate with certified laboratories to test for total coliform bacteria, E. coli, nitrates, pH, hardness, iron, and total dissolved solids. In our North Houston service area, we also screen for common local contaminants like arsenic and hydrogen sulfide. Results typically take 3 to 5 business days.
Why It Matters for Buyers
A well inspection report gives you negotiating power and peace of mind. If the pump is near the end of its life, you can request a credit or replacement before closing. If water quality issues are discovered, you'll know exactly what treatment system is needed and what it will cost. Without an inspection, you could inherit a $5,000+ pump replacement or a contaminated water source with no recourse.
77 Water Well Inc. provides certified well inspections for homebuyers across Montgomery, Waller, and Harris counties. Call us at (281) 456-4556 to schedule your pre-purchase inspection.