Water pressure that’s too high doesn’t announce itself with a leak right away — it quietly stresses every supply line, fixture seal, and appliance connection until one of them fails. MQ Plumbing tests, diagnoses, and installs pressure regulation systems — pressure reducing valves and expansion tanks — for homes and businesses throughout Mint Hill, Charlotte, and the surrounding metro.

Pressure Reducing Valve (PRV) Installation

Regulates incoming municipal supply down to a safe, consistent range, sized and set for your home's actual demand.

Expansion Tank Installation

Absorbs the pressure spike created by thermal expansion in a closed plumbing system, required in most jurisdictions once a PRV or check valve is in place.

Well System Pressure Tanks

Pressure tank installation and sizing for private-well properties, coordinated with well pump work.

Whole-Home Pressure Testing

An on-site pressure reading and diagnosis before we recommend anything, so the fix matches the actual cause.

Normal vs. Problem Pressure

Residential water pressure should run between 40 and 80 PSI. Most municipal connections across the Charlotte metro deliver supply at 60 to 100 PSI, which means a meaningful share of homes here are operating above the safe range without a pressure reducing valve to bring it down. Above 80 PSI, a home’s plumbing system is under continuous stress — not enough to cause an immediate failure, but enough to shorten the life of every fixture and appliance connection over years.

Not sure if your pressure is in range?

We test on-site and give you a straight answer before recommending anything.

Normal vs. Problem Pressure

Residential water pressure should run between 40 and 80 PSI. Most municipal connections across the Charlotte metro deliver supply at 60 to 100 PSI, which means a meaningful share of homes here are operating above the safe range without a pressure reducing valve to bring it down. Above 80 PSI, a home’s plumbing system is under continuous stress — not enough to cause an immediate failure, but enough to shorten the life of every fixture and appliance connection over years.

Why a PRV Is a Standard Install, Not an Upgrade

A pressure reducing valve isn’t an optional add-on — in most jurisdictions in our service area, it’s required whenever a backflow prevention device or check valve creates a closed system, because that combination traps thermal expansion with nowhere to go. A properly sized and set PRV protects every pipe, fixture, and appliance in the house from years of excess pressure, which is a meaningfully cheaper problem to prevent than to repair after the fact.

Why Homeowners and Businesses Choose MQ Plumbing

  1. We test pressure on-site before recommending anything
  2. PRVs are sized to your home’s actual demand, not a generic setting
  3. Every job gets a written estimate before work starts
  4. Expansion tanks are sized to match your water heater and system volume
  5. We’re licensed in both North Carolina and South Carolina

How a Water Pressure Job Works With MQ Plumbing

You share the remodel plan or appliance specs

Send your layout or the appliances you're installing, and we'll flag anything that affects drain venting or supply routing early.

We confirm the scope and quote in writing

A licensed plumber walks the space, confirms what's involved, and gives you a fixed price before work starts.

We install, test, and coordinate with your other trades

Every connection is tested before we finish, and we time our work around cabinet and countertop installation.

Ready to get your pressure checked?

Licensed in NC & SC. Written pricing before any work starts.
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What Our Clients in Charlotte Are Saying

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Frequently Asked Questions

What's considered normal water pressure for a home?
Between 40 and 80 PSI. Below that range, fixtures underperform; above it, the system is under chronic stress.
Do I need an expansion tank if I install a PRV?
In most cases yes — once a PRV creates a closed system, an expansion tank is required to absorb thermal expansion safely.
Can you install a pressure tank for a well system?
Yes, we size and install pressure tanks for private-well properties, coordinated with well pump work where needed.
How do I know if my high pressure is from the PRV or something else?
An on-site pressure test tells us that directly — it could be a missing or failed PRV, or in rare cases a municipal supply issue.
Is a PRV required by code in North Carolina or South Carolina?
It's typically required when a backflow preventer or check valve is present. We'll confirm what applies to your specific setup.