Fall plumbing prep: protect your NoVA home before the first freeze

Frozen-pipe damage doesn't build up gradually. It happens in a single night when the temperature drops faster than expected, and outdoor hose bibs are usually where it starts. We've taken plenty of emergency calls that a little fall prep would have prevented.

The first freeze usually arrives in late October out in Loudoun and a few weeks later closer to the city. Before then, these are the things worth handling: hose bibs and sprinkler lines, exposed pipes, the water heater, the sump pump and sewer line, and knowing where your main shutoff is.

Hose bibs and sprinkler lines

Outdoor hose bibs are the most vulnerable points in your plumbing. Water trapped in the line freezes and expands, and it can split the pipe inside your wall, where you won't see the damage until spring. If you want the full picture, here's what happens when pipes freeze.

One thing you can do yourself: disconnect your garden hoses, drain them, and store them in the garage or basement. A hose left attached holds water against the bib.

The rest is a job for our technicians. Not every hose bib has an interior shutoff, and the right way to winterize depends on which type you have. On a fall visit we check each bib, close and drain the ones with interior valves, and winterize the rest according to their type.

If you have a sprinkler system, it needs a blowout. Compressed air clears water from underground lines that the normal drain cycle can't reach, and it prevents split lines come spring. We can schedule it as part of your fall service.

Exposed pipes in garages and crawl spaces

Pipes in unheated spaces are next on the list. The usual spots:

• Crawl spaces
• Water lines in attached garages
• Pipes along exterior walls in basements
• Plumbing in unheated storage areas

Exposed lines in these spots should be insulated, and we can wrap them during a fall visit. During a cold snap, leaving the cabinet doors open under kitchen and bathroom sinks lets warm air reach the pipes. If your crawl space has vents, they should be clear but able to close during extreme cold.

If your home was built before 1990, fall is also a good time to think about whether your pipes need updating. Homes built in different decades have different weak spots, and some materials handle freeze-thaw cycles worse than others.

Your water heater before winter

Water heaters work hardest in winter, which is when failures tend to show up. Sediment settles at the bottom of a tank all year, especially in hard water. That layer acts like insulation, makes the heater work harder, and shortens its life.

A fall flush by our technicians clears that buildup, which means less rumbling and better efficiency. If your tank is 8 years old or more, have our team inspect your water heater before the cold sets in.

If you have an expansion tank, we check it too. It absorbs the pressure that builds as water heats, and its air charge fades over time. A tank that's working properly protects your water heater and fixtures.

Gutters, sump pump, and sewer line

Your gutters affect your plumbing more than most people expect. Clogged gutters dump water right next to the foundation and soak the soil around your sewer line. In Northern Virginia's clay soil, saturated ground shifts, which can stress older sewer joints and give tree roots an opening. Keeping the gutters clean and the downspouts carrying water well away from the foundation helps.

Before the heavy fall rains, we test the sump pump and its float switch. A pump that's sat idle all summer can stick, and you want to find that out now, not during a storm.

If you've had any drainage issues and haven't had the sewer line scoped recently, fall is a good time for a sewer camera inspection. It's a lot better to find a problem now than during a holiday-season backup. Our technicians also look under sinks for leaks while they're there.

Know where your main shutoff is

This one is on you, and it's the most important item on the list. Every family member should know where the main water shutoff is. In most NoVA homes it's near where the water line enters the house, often in the basement or crawl space. Tag it with a bright label.

If your main shutoff inside the house is stuck or hard to turn, have it replaced now. In an emergency, you don't want to find out you can't stop the water. Our guide on how to shut off your water in an emergency covers where to look.

Pioneer Plumbers is family-owned, licensed, and insured, and a fall visit from our technicians covers the rest. Call us at (703) 508-3088 to get on the schedule before the first freeze. We'd rather spend an hour preventing problems than three hours at midnight fixing frozen pipes.