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Symptom · Diagnose & Fix

Water Bill Suddenly Spiked

A sudden, unexplained water bill spike — without a change in how much you're watering — almost always means water is escaping somewhere in the system. The faster you find it, the less it costs you.

Likely causes

What's usually causing this

01

Underground line break

Pressurized supply lines can develop cracks or full breaks underground, especially after foundation movement, root growth, or unexpected freezes. Water flows continuously into the soil where you can't see it. Sometimes a soggy patch is the only surface clue.

02

Multiple stuck or leaking valves

When several zone valves develop diaphragm issues at once — common in older systems that haven't been serviced — small continuous leaks compound across the system. Each one alone wouldn't be obvious; together they double the bill.

03

Broken main supply line

A break in the main line between your meter and the system manifold leaks 24/7, regardless of whether any zone is running. This is the most expensive failure mode by far — and the easiest to confirm with a meter reading test.

04

Faulty controller scheduling

Less common but easy to miss: the controller starts running zones twice a day after a power outage reset, or a programming error doubles the run time of every cycle. The system is working as instructed — it's just instructed to use too much water.

How we fix it

Our repair approach

We start with a meter reading test to confirm whether the leak is constant (main line / valve) or scheduled (controller / zone). From there we run each zone, check the controller program, and pressure-test suspect sections. Major leaks get found in the first hour. Repair scope depends on what we find — line breaks need excavation; valve work and controller fixes are typically same-visit.

Ready to fix it?

Call now — every day this goes unfixed costs you on the next bill.

Same-week diagnostics for irrigation issues in Montgomery County. Call now and we will pencil you in.