Philadelphia winters don't pull punches. Between freezing temperatures, ice storms, and the constant freeze-thaw cycles that hammer our region from December through March, your home's plumbing takes a beating every single year. The good news? Spring is the perfect time to assess the damage, catch small problems before they become expensive emergencies, and get your plumbing system ready for the warmer months ahead.
At GenServ Pro, we see a surge of calls every April and May from homeowners who discover leaks, slow drains, and damaged fixtures that went unnoticed all winter. A little proactive attention now can save you thousands later. Here's your complete spring plumbing checklist.
1. Inspect All Outdoor Faucets and Hose Bibs
This is the single most important thing you can do when spring arrives. Outdoor faucets are the most vulnerable part of your plumbing system during a Philadelphia winter, and damage isn't always obvious.
Here's how to check: turn on each outdoor faucet one at a time while someone inside listens near the shut-off valve or watches for water where it shouldn't be. If the faucet drips, sprays from the handle, or produces only a trickle, you may have a cracked pipe behind the wall. Frost damage to hose bibs is one of the most common — and most expensive — plumbing repairs we handle every spring in neighborhoods from Manayunk to Media.
2. Check for Visible Leaks in the Basement and Crawl Space
Grab a flashlight and take a slow walk through your basement or crawl space. Look for:
- Water stains on walls, floor joists, or the ceiling beneath bathrooms and kitchens
- Mineral deposits (white or greenish crusty buildup) around pipe joints
- Dripping or sweating pipes — some condensation is normal in spring, but active drips are not
- Musty or moldy smells, which often indicate hidden moisture
- Puddles or damp spots on the floor, especially near the water heater or main supply line
Philadelphia's older housing stock — particularly the row homes in neighborhoods like Fishtown, South Philly, and Germantown — often has a mix of original cast iron, galvanized steel, and newer copper or PEX piping. Winter stress can cause joints to loosen and older pipes to crack, especially at transition points between different materials.
3. Test Your Sump Pump
April showers bring more than flowers in the Delaware Valley — they bring rising water tables and basement flooding. If you have a sump pump, now is the time to make sure it's working.
Pour a bucket of water slowly into the sump pit until the float activates the pump. It should kick on, pump the water out, and shut off automatically. If it doesn't activate, runs continuously, or makes grinding or humming noises, it needs attention before the next heavy rain. We recommend testing your sump pump at the start of every spring and again before hurricane season in late summer.
Did You Know? Philadelphia Gets 47 Inches of Rain Per Year
That's more than Seattle. Between spring thunderstorms and summer downpours, a working sump pump isn't optional for homes with basements in the Philly area — it's essential. If your pump is more than 7–10 years old, consider a proactive replacement before it fails during a storm.
4. Flush Your Water Heater
Sediment builds up at the bottom of your water heater tank throughout the year, reducing efficiency and shortening the unit's lifespan. Spring is an ideal time to flush it. Draining a few gallons from the tank valve removes accumulated sediment and helps your water heater run more efficiently heading into the summer months when you'll use more water for showers, outdoor activities, and laundry.
If you haven't flushed your water heater in over a year (or ever), consider having a professional handle it. Older tanks with heavy sediment buildup can sometimes develop issues during a flush if the drain valve is corroded — something our techs are equipped to handle safely.
5. Clear Slow Drains Before They Become Full Clogs
Winter tends to make drain problems worse. Grease solidifies faster in cold pipes, hair and soap scum accumulate, and people spend more time indoors using fixtures. If any drain in your home is running slower than usual, spring is the time to address it — before a slow drain becomes a full backup.
Start with the easy stuff: remove and clean drain stoppers and strainers in sinks, tubs, and showers. If a drain is still sluggish after cleaning the visible components, it's likely a buildup deeper in the line. A professional drain cleaning is far more effective (and safer for your pipes) than chemical drain cleaners, which can damage older plumbing common in Philadelphia homes.
6. Inspect Toilet Components
Lift the lid on each toilet tank and look inside. Check the flapper — if it's warped, cracked, or coated in mineral buildup, it's probably causing a slow leak that wastes water and money around the clock. A running toilet can waste up to 200 gallons per day.
While you're at it, check the fill valve, flush handle mechanism, and the connection between the tank and bowl. Look for any signs of moisture or water damage at the base of the toilet, which could indicate a failing wax ring seal — a common issue in homes with old tile floors that have shifted over time.
7. Check Washing Machine Hoses
Washing machine supply hoses are under constant pressure and are a leading cause of catastrophic water damage in homes. Inspect both the hot and cold supply hoses for bulges, cracks, or kinks. If your hoses are the standard rubber type, consider upgrading to braided stainless steel hoses, which are far more resistant to bursting. Most manufacturers recommend replacing washing machine hoses every 3–5 years regardless of condition.
8. Locate and Test Your Main Water Shut-Off Valve
Every homeowner should know where their main water shut-off valve is and confirm it works properly. In Philadelphia homes, it's typically in the basement near the front wall where the water main enters. Turn it clockwise to close and counterclockwise to open. If it's stuck, corroded, or leaks when operated, have it replaced — this valve is your first line of defense in any plumbing emergency.
9. Prepare Outdoor Plumbing for Spring Use
Beyond hose bibs, think about any other outdoor plumbing you'll be using this season:
- Reconnect and test sprinkler systems (check each zone for broken heads or line leaks)
- Inspect outdoor kitchen or grill plumbing connections
- Check any outdoor shower or pool plumbing for winter damage
- Make sure exterior drainage is directing water away from your foundation
10. Schedule a Professional Plumbing Inspection
Even the most diligent homeowner can miss problems that are hidden behind walls, under slabs, or deep in drain lines. A professional spring plumbing inspection gives you peace of mind and catches issues like small slab leaks, deteriorating sewer lines, and hidden corrosion that a visual check can't reveal.
At GenServ Pro, our spring plumbing inspections include a camera inspection of your main drain line, a pressure test of your supply system, and a thorough review of all accessible plumbing — giving you a complete picture of your home's plumbing health heading into the busiest season of the year.
Spring Plumbing Checkup — Schedule Yours Today
Don't wait for a leak or backup to remind you. GenServ Pro serves Philadelphia, the Main Line, and Delaware County with licensed, insured plumbing professionals. Book your spring inspection now.