Getting a home ready to sell can feel like a full-time job.
Curb appeal, fresh paint, staging the living room…these are things most sellers focus on. The plumbing? Every time, it goes to the bottom of the list.
Here’s the problem:
Buyer’s home inspector will discover every plumbing problem ever overlooked. After which the deal implodes in record time.
The good news?
Many plumbing repairs are inexpensive and easy — if sellers know what to look for.
Inside This Guide:
- Why Plumbing Can Sink A Home Sale
- The Plumbing Issues Buyers Spot Instantly
- The Pre-Listing Plumbing Checklist (Step-By-Step)
- What Home Inspectors Love To Flag
- Disclosure Rules Sellers Need To Know
Why Plumbing Can Sink A Home Sale
Plumbing is one of the first things a buyer’s home inspector looks at.
Why? Because plumbing problems often indicate more significant problems lurking behind walls. Things such as:
- Water damage
- Mold growth
- Structural decay
And nobody loves hidden issues. Roughly 24% of home insurance claims are for water damage. Buyers and inspectors take plumbing very seriously before they’ll sign on the dotted line.
A little drip can sink a sale. If a house is about to go on the market, major plumbing work needs to be done before the “For Sale” sign goes up.
The Plumbing Issues Purchasers Spot Instantly
Some plumbing issues are impossible to hide.
A buyer enters the kitchen, turns on the faucet and stares at the filling sink. There’s a clogged drain staring back at them. A slow or clogged drain indicates neglect — and buyers begin wondering what else has been neglected.
The smart move? Tackle all clogged drain repairs prior to your first showing. Sellers who recently staged their home in the Dallas area got their plumbing sorted fast and avoided cringe-worthy discussions during open houses.
Here are the other red flags buyers catch right away:
- Slow draining sinks, tubs, or showers
- Dripping faucets
- Running toilets
- Water stains on ceilings or under cabinets
- Low water pressure
- Foul sewer smells near bathrooms
Each of these can be a deal killer. Correct them all and you eliminate any simple justification for a lowball offer.
The Pre-Listing Plumbing Checklist
OK, now for the good stuff. Here’s your no nonsense, plain-spoken plumbing checklist for every seller to work through before listing day.
Fix Every Visible Leak
Start by walking through each room and checking every faucet, pipe, and fixture.
Look for:
- Drips under sinks
- Water spots on cabinets
- Rust around pipe joints
- Damp spots on walls or ceilings
It may be a small drip, but it adds up quickly. It is also one of the simplest things to fix before the buyer’s front door.
Tackle Every Clogged Drain Repair
A clogged drain repair is non-negotiable before listing.
Flush all toilets, run all sinks, test all showers. Repair any that puddle or drain slowly. This may be as simple as removing hair from shower drains, plunging bathroom sinks, or calling in a professional for the more complicated tasks.
Sellers frequently forget the kitchen garbage disposal, as well. Run it. Listen for grinding or humming. If it’s not smooth, have it serviced or replaced.
Check The Water Heater
Water heaters are a major concern for buyers. If the unit is over 10 years old, it’s on borrowed time.
Check the water heater for:
- Rust on the tank
- Puddles underneath
- Strange sounds when running
- Lukewarm water at best
If it doesn’t look right, swap it. Buyers will nearly always ask for a new one anyway during negotiation.
Inspect The Sewer Line
This one is huge. A cracked sewer line can cost a small fortune to replace and will often scare buyers off entirely.
Schedule a camera inspection for any home that is more than 25 years old. It is better to discover roots growing around the pipe or a break than to find out during the buyer’s inspection.
Sewer line problems can reduce offers by $5,000 to $20,000. That’s a huge hit.
Test The Toilets And Water Pressure
Walk into each bathroom and:
- Flush each toilet twice
- Check for wobbly toilet bases
- Turn on all the taps at once to test pressure
Low pressure usually indicates old pipes or a plugged supply line. Weak flushes signal a tank problem. Neither is difficult to remedy, but both are called out by inspectors every day.
What Home Inspectors Love To Flag
Inspectors have to find issues in order to justify their fee. Plumbing has no shortage of issues.
Homes with known plumbing problems typically stay on the market 20-40% longer than similar houses. That’s weeks (or months) of additional stress, carrying costs and painful price reductions.
Here’s what inspectors zero in on:
- Corroded or galvanized pipes
- Polybutylene piping (a known failure point)
- Poor water pressure across the home
- Old water heaters near the end of their life
- Sewer backups or slow mainline drainage
Avoid these and the inspection report becomes your ally in negotiation, not an obstacle to your deal. By the way — every day, about 14,000 people in the US have water damage. So inspectors are well-versed in what to look for.
Disclosure Rules Sellers Need To Know
Here is where sellers get burned.
By law, in most states, sellers must disclose any and all plumbing problems they know about. Translation: if there’s a leak, clog or repair, it needs to be on the disclosure form. Concealing an issue not only feels sleazy–it can mean a lawsuit years down the road.
The smart play:
- Get every plumbing issue fixed before listing
- Keep the receipts
- Share the paperwork with the buyer
An unclouded disclosure form with evidence of repairs inspires confidence. It also maintains open negotiation from offer to closing day.
Bringing It Home
Plumbing is the home prep task most often overlooked by sellers, yet most significantly affects sale price and speed.
A quick pre-sale plumbing check can:
- Boost offers
- Speed up the closing process
- Prevent ugly surprises during the buyer’s inspection
- Keep the seller protected from disclosure headaches
To quickly recap the game plan:
- Walk through every room and fix the obvious stuff
- Knock out every clogged drain repair before listing
- Service the water heater and check the sewer line
- Document all the work and share it with buyers
Homeowners who prioritize plumbing (instead of an afterthought) sell faster and for more money. Really, it is that simple.
Don’t let a buyer’s inspector uncover your problems. Identify them first, repair them quickly, and let the house sell itself.