Our Blogs

Why Is Your Backflow Preventer Leaking?
A backflow preventer leaking on your property usually points to freeze damage, worn seals, or trapped grit. In most cases, you should shut off the

What Is a Furnace Limit Switch and What Happens When It Fails?
A furnace limit switch is a safety control that monitors the furnace temperature and shuts off the burners if it gets too hot, protecting the

Understanding Water Softener Regeneration for Your Home
A water softener removes hardness minerals by trapping them on resin beads, and water softener regeneration automatically flushes those minerals out with salt water from

What Is a Water Heater Expansion Tank?
A water heater expansion tank is a small steel vessel installed on the cold water supply pipe near your water heater. It provides extra space

How to Winterize Outdoor Faucets Before Cold Weather Arrives
To winterize outdoor faucets, follow four basic steps. First, disconnect all garden hoses. Next, close the outdoor faucet shut-off valve inside the house. Then, open

Dealing With Tree Roots in Sewer Lines: Signs and Solutions
When wastewater drains sluggishly, or toilets start making strange bubbling sounds, many homeowners assume a simple paper clog is the culprit. That assumption changes when

How to Diagnose and Resolve Low Water Pressure in Your Home
Experiencing low water pressure can disrupt simple daily routines. Washing dishes, taking showers, and running laundry all become difficult chores. Homeowners asking why their water

Generator Maintenance: Will Your System Run When the Power Goes Out?
When severe weather knocks out utility power across Northern Virginia, your standby generator must start immediately. A backup power system protects your home only if

My Circuit Breaker Keeps Tripping: Common Causes and Safe Solutions
When a switch flips in your electrical panel and cuts power, it is easy to view it as a minor hassle. However, circuit breakers serve

Is Your Water Heater Leaking? Causes, Warning Signs, and Repair Options
Finding puddles around your water heater can be alarming. However, a water heater leaking on your floor does not always require a total replacement. Water

Why Is My Sump Pump Not Working? Common Causes and Troubleshooting Steps
A malfunctioning drainage system leaves your basement vulnerable to water damage during heavy rainstorms. Finding your sump pump not working right before a storm requires
The Best HVAC Company in Northern VA
At John Nugent & Sons, we have one goal: providing McLean and the rest of Northern Virginia with the best home comfort solutions. And since