Restoring a Winterized Vacant Home for Inspection

Why this matters

A buyer cannot inspect a house with no water and no heat, so somebody has to bring a winterized house back to life, usually the day before the inspector arrives. Done in a hurry it goes one of two ways. The water goes on fast with nobody watching, a pipe that split in January sprays inside a wall for an hour, and the buyer's inspector walks into a wet ceiling the next morning. Or the gas goes on, a water heater fires on an empty tank or a pilot gets lit by whoever is handy, and the restoration has created a hazard in a house nobody will be living in to notice it. The sequence below is cross-trade: plumbing does the water, a qualified gas tech does the gas, and everybody works to the same order.

Before anything: the three hazards and who handles each

Gas. Only a qualified gas technician turns on gas to the house, relights pilots or fires appliances, and where the utility locked or tagged the meter, only the utility unlocks it. That is a licensing line set by your state and local code, not a shop preference. If anyone smells gas at any point, everybody leaves the house immediately, nobody touches a switch, light or phone inside, and the call to the gas utility's emergency line and 911 is made from well outside.

Water and electricity. A burst found during restoration can put water on the floor next to outlets, cords, a furnace or the panel. Before the main opens, know where the panel is and whether you can reach it from dry floor. If water reaches anything electrical, nobody walks into it; the circuits serving that area are switched off at the panel by a qualified person standing dry, or you leave and call an electrician.

Equipment harm. An electric water heater energized before its tank is full burns out its elements within seconds. A gas water heater fired empty can damage the tank. The tank fills completely before power or gas goes to it, every time.

The steps

1. Get written permission for de-winterization, and settle re-winterization

Get it from the owner, or from whoever ordered the winterization if that is a lender or preservation company, by email or signed order. Ask the second question at the same time: if the house will sit empty again in freezing weather after the inspection, who re-winterizes it, and when?

Why. Winterization is often ordered by a lender protecting its collateral, and turning the water back on without its order can be treated as damage to the property. The re-winterization question matters because a de-winterized house left unheated in a freeze is worse off than one that was never touched.

What breaks if you skip it. You restore water on the agent's say-so, a pipe bursts, and the owner says nobody authorized it.

2. Read the winterization record before touching a valve

Most winterizers leave a tag on the main and a sticker on fixtures, and sometimes a written record with the lockbox:

WINTERIZED - DO NOT TURN ON WATER
Date: Dec 4   Method: air blow-out
Main: closed, at meter in basement
Water heater: drained, drain valve OPEN
             breaker OFF, gas valve OFF
Toilets: tanks drained, antifreeze in bowls
Traps: antifreeze added, all fixtures
Washer hoses: removed, in laundry sink
Ice maker line: disconnected at fridge
Pressure test: held, Dec 4
By: preservation vendor, work order 8812

Why. The tag tells you what was opened, removed or disconnected. Every item on it is something that must be closed or reconnected before pressure comes back, and the water heater drain left open is the single most common flood on a restoration. "Pressure test: held" tells you the system was tight on that date, which is what makes damage found now freeze damage since then.

What breaks if you skip it. You open the main with the heater drain still open and pump water across the basement floor.

3. Walk every pipe and fixture for freeze damage, dry

Before any water goes in, look at everything you can see: supply lines in the basement and crawlspace, the water heater body, toilet tanks and bowls for hairline cracks, washing machine valves, the dishwasher inlet, the ice maker connection, and the inside wall behind each outdoor hose bib. Close every drain valve and faucet the tag says was opened, reconnect what was removed, and take aerators off faucets so debris can flush.

Why aerators come off. Air blow-out and refilling knock scale loose, and it clogs aerators and cartridges. Ten minutes now saves a slow-faucet note on the inspection report.

What breaks if you skip it. A cracked toilet tank is invisible dry and fills a bathroom floor within minutes wet.

4. Turn the water on slowly, with somebody watching every level

Position people before the main moves: one person at the main, one on each floor that has plumbing, one in the basement or at the crawlspace hatch if there is one. With two people, the second walks the house during the hold in step 5. Open the main about a quarter turn and listen. Water rushing for a minute and then quieting is lines filling. Water that keeps rushing with every fixture closed is a leak.

Then open the main the rest of the way over several minutes. Open one fixture at a time, cold then hot, until it runs without spitting air, then close it.

Hazard at this step. Pressure is coming back into joints that may have split. Whoever is at a fitting stands to the side of it, not over it, and anyone who sees spray calls it out so the person at the main closes it at once.

What breaks if you skip the watchers. Restoring water alone means a leak on the second floor runs for as long as it takes you to walk up there.

5. Hold, watch the meter, and test the hidden fixtures

With every fixture closed, watch the water meter's leak indicator, the small dial or triangle that turns with any flow, for 15 minutes. That is a common starting point; tune it to the house, longer for a large one. It should not move. Then test the places freeze damage hides:

• Frost-free hose bibs. Their valve seat sits inside the wall, so a split shows only when the bib is opened. Open each one outside for a minute with someone inside watching the wall or the basement ceiling behind it.
• Ceilings below bathrooms and the kitchen. Look again after 15 minutes. A slow drip shows as a darkening spot, not a puddle.
• Washer and dishwasher valves. Turn each on and look at the connection.

6. Fill the water heater before it gets any energy

Close the drain, open a hot faucet nearby, and leave it open until it runs a steady stream with no air. Only then is the tank full. For an electric heater, the breaker can now go on. For gas, go to step 7.

7. Gas: utility and qualified tech only

If the meter is locked or tagged, the utility restores service. Once gas is available, the qualified tech checks the house piping for leaks as the local code and utility require (some require a pressure test after a long shutoff), relights each pilot or ignition system following the manufacturer's label on the appliance, and checks each appliance for draft and carbon monoxide before leaving it running. The tech wears a personal CO monitor while doing it.

What breaks if you skip it. A pilot lit by the plumber "because it was right there" is a gas appliance restored with nobody qualified checking its venting, in a house where nobody will notice symptoms.

8. Flush the antifreeze

Run every faucet until the water is clear, and flush each toilet at least twice. Winterizers should use non-toxic propylene glycol antifreeze, but you cannot tell the type from the color, so flush everything rather than trusting it. Run the dishwasher and washer empty if the inspection will test them. Put the aerators back.

9. Report before you leave

Send the agent and the owner what you found, what you fixed or isolated, what you could not test, and the re-winterization arrangement from step 1. The buyer's inspector will see whatever you see, and the report makes sure the seller hears it first. See related: Your Findings and the Seller Disclosure Obligation.

Worked example: a two-story house, the day before inspection

The setup. A vacant two-story house winterized in December. Inspection booked at 10 am tomorrow. Permission email from the owner's estate attorney received at 8:40 am; it also says the house will be re-winterized after inspection by the same vendor. A plumber and an apprentice arrive at 1 pm; the gas tech is booked for 3 pm.

1:00 to 1:40 (steps 2 and 3). The tag matches the example above. The walk finds no visible splits. They close the heater drain, reconnect the washer hoses and the ice maker line, and pull six aerators.

1:45 (step 4). Apprentice upstairs, plumber at the main in the basement. Quarter turn: rushing for about a minute, then quiet. Main fully open by 1:52. Each fixture bled in turn.

2:00 to 2:15 (step 5). Meter indicator still for 15 minutes. Then the hose bibs: the front bib runs clean, but when the back bib opens, the apprentice in the basement sees water coming down the inside of the rim joist behind it.

The call. That is a split frost-free bib, a common freeze failure. The plumber closes the back bib and the main, finds no isolation valve on the bib's branch, and decides not to replace the bib today because the owner authorized de-winterization, not repairs. The split only leaks when the bib is open, so he reopens the main, checks the meter indicator is still with the back bib shut, and tapes the bib handle with a note: "Split inside wall, do not use."

2:20 (step 6). Water heater filled; steady stream at the kitchen hot tap by 2:31.

3:00 (step 7). The gas tech checks the house piping, relights the water heater and furnace, checks both for draft and CO, and leaves the furnace at 55 F for the inspection.

3:40 (steps 8 and 9). Antifreeze flushed, aerators back. Report to agent and attorney: water restored, no leaks with fixtures closed, back hose bib split inside the wall and tagged, quote for replacement attached as a separate approval.

What would have changed the call. If the split bib had leaked with the bib closed, the leak would have been on the pressurized side, and the main would have stayed off until it was repaired or isolated, inspection or no inspection.

How to verify you got it right

Next morning, before the inspector arrives, someone checks three things: the meter's leak indicator is still with all fixtures off, the ceilings under bathrooms are dry, and the furnace and water heater are running. If all three hold, the house is ready. If any fails, close the main and call the agent before the inspector walks in.

References

• Your state and local fuel gas code, and the gas utility's rules for restoring service after a shutoff
• Appliance manufacturers' lighting and installation instructions on the appliance label
• See related: Working in a Vacant Listed Home
• See related: The Vacant Home Access and Exit SOP
• See related: Your Findings and the Seller Disclosure Obligation