Plumbing for Real Estate Agents, Buyers and Sellers

What the 4-point inspection asks about plumbing

In Florida, an older home usually needs a 4-point inspection before an insurer will bind a policy. It covers roof, electrical, HVAC and plumbing, and it’s a condition report, not a full home inspection. Citizens publishes a sample form (Insp4pt 01 18) that many private carriers either use or copy closely, so it’s a good guide to what an underwriter will see.

The plumbing section is short, but every line matters:

• Whether the water heater has a temperature and pressure relief (TPR) valve, and where the heater is located.
• Any sign of an active leak, and separately, any sign of a prior leak. Old water stains under a sink count.
• Condition ratings (satisfactory, unsatisfactory or not applicable) for the dishwasher, refrigerator, washing machine, water heater, showers and tubs, toilets, sinks, sump pump, main shutoff valve and other visible components.
• Age of the piping system: original, completely repiped or partially repiped, with the year and extent of any repipe.
• Pipe type, check all that apply: copper, PVC/CPVC, galvanized, PEX, polybutylene or other.

The form also calls for photos of the water heater, the plumbing and drains under cabinets, and exposed valves. Notice what that means in practice. A corroded angle stop under the kitchen sink or a water heater with no TPR valve shows up in a photo the underwriter looks at, even if the house otherwise shows well.

The form itself doesn’t set eligibility rules for pipe type or water heater age. Each carrier does that in its own underwriting guidelines, and those guidelines change. Many Florida carriers decline or surcharge homes with polybutylene supply lines, and some also balk at galvanized steel or at water heaters past a certain age. Have the buyer’s insurance agent confirm the specific carrier’s rules before anyone spends money on a fix. Our polybutylene and 4-point guide goes deeper on that pipe in particular.

Findings we see most often in Southwest Florida inspections

The housing stock here has distinct eras, and the plumbing findings line up with them. Fort Myers has older neighborhoods with homes from the 1950s and 1960s. Cape Coral, Lehigh Acres and Port Charlotte grew fast from the 1960s through the 2000s. Naples and Bonita Springs have a lot of 1980s and 1990s construction alongside newer gated communities.

Polybutylene supply lines

Gray plastic supply pipe, often stamped PB2110, was installed widely from the late 1970s into the mid 1990s. Inspectors usually spot it at the water heater connections or under sinks. The fittings and the pipe itself can fail without much warning, which is why insurers care. The usual answer is a repipe, covered on our polybutylene replacement page.

Galvanized steel

Galvanized supply pipe shows up in the oldest homes and in some additions. It rusts from the inside, so pressure drops and rusty water at the first draw are typical signs. Even if it isn’t leaking, a carrier may treat it as near the end of its life.

Cast iron drains

Homes built before PVC drains became standard, roughly through the early 1970s, often have cast iron under the slab. Florida’s humidity and soil conditions are hard on it. The bottom of the pipe channels out and cracks, and the first sign is often a slow tub drain or sewer odor in a bathroom. A home inspector can’t see this. A camera can.

Water heaters

Inspectors read the date code off the data plate, and a tank heater past ten to twelve years tends to draw a note. They also flag a missing TPR valve, a discharge pipe that’s undersized or ends too high above the floor, rust at the base, and a gas unit with venting issues.

Missing drain pans and expansion tanks

The plumbing code requires a pan under a tank water heater where a leak would cause damage, which describes nearly every interior closet or garage install over finished flooring. A thermal expansion tank (or another expansion control device) is required where a check valve, backflow preventer or pressure-reducing valve closes off the system. Many older heaters were installed before those devices were common, and replacements done without a permit often skip them.

Unpermitted work

Common examples: a water heater changed out by a handyman, a converted garage with a new bathroom, a PEX repipe done by a previous owner, or a laundry moved inside. None of these are automatically a problem, but they can become one when the buyer’s lender, insurer or appraiser starts asking questions.

Finding, typical fix and what to send

This is the table we wish every listing agent had in the file before going under contract. The right document depends on who’s asking: an insurer wants proof the condition is gone, a buyer wants proof it was done right.

For insurance, the most common request is an updated 4-point after the work is done. The inspector needs to see the repair and the paperwork, so line that up before scheduling the re-inspection.

Pre-listing repairs that pay off for sellers

Sellers in older homes can save a lot of contract drama by handling the obvious items before photos. We’d focus on the items that will trip up a buyer’s insurance, because those can stall or kill a deal outright.

• Replace polybutylene or galvanized supply lines, or at least get a repipe proposal so buyers know the scope.
• Check the water heater’s age from its serial number. If it’s at or near the end of its life, replacing it with a permit gives the buyer a clean 4-point.
• Swap old angle stops and braided supply lines under sinks and toilets. They’re cheap parts, and corroded ones look bad in 4-point photos.
• Fix running toilets, dripping faucets and slow drains. Inspectors write these up, and they make buyers wonder what else was ignored.
• Run a camera on the main drain in a pre-1975 home with cast iron. Knowing the condition lets the seller price it in or fix it, instead of reacting to a buyer’s inspector.
• Pull the permit history yourself and close anything left open.

Keep every invoice and permit number in one folder and upload it to the listing documents. Buyer’s agents notice.

Repair requests during the inspection period

The two Florida Realtors/Florida Bar residential contracts most agents use handle inspections differently, and the plumbing advice changes with them. This is a general overview, not legal advice, and the forms get revised, so read the version actually signed.

Under the AS IS contract, the default inspection period is 15 days from the effective date unless the parties write in something else. The buyer can inspect and cancel during that window, but the seller has no obligation to make repairs. Any plumbing fix happens because the parties negotiate it, usually as a price reduction, a closing credit or a written addendum.

The Standard contract also defaults to 15 days but gives the seller repair obligations up to set limits, each 1.5 percent of the purchase price by default, for general repairs, wood-destroying organism damage and permit issues. When estimates run past those limits, the contract sets out what happens next. That makes a written estimate from a plumber important evidence.

Either way, timing is the problem. A camera inspection, a repipe estimate and a plumbing scope all need to land inside that window. When you call us during an inspection period, tell us the deadline and send the inspector’s plumbing notes and photos so we can quote what’s actually listed rather than starting from zero.

What makes a useful repair estimate

• Each finding listed separately, matching the inspector’s wording where possible.
• Whether a permit is required for each item.
• The material to be used, especially for a repipe.
• What the work does not include, such as drywall patching or tile.

Sewer camera before you buy

A standard home inspection runs water at fixtures and looks at what’s visible. It doesn’t see the drain under the slab or the lateral running to the street or septic tank. A sewer camera inspection does.

We’d push hard for a camera on any home with cast iron drains, a home with large trees near the line, a house that’s been sitting vacant, or one with a history of backups. In Cape Coral and Lehigh Acres it also helps to know whether the home is on central sewer or septic, since the camera tells you different things in each case.

What we look for on the video: cracks and channeling in cast iron, root intrusion at joints, sagged sections (bellies) holding water, offset joints, and debris that suggests a partial blockage. We record the run and note the distance from the access point, so the buyer has something specific to negotiate with. Our guide to buying an older home covers what else to check in that kind of house.

One practical note: the camera needs an access point. If there’s no cleanout, we may have to pull a toilet, which takes the seller’s permission. Ask early.

Checking permit history

Permit records are public, and most building departments in our area have an online search by address. In Lee County, the incorporated cities such as Cape Coral and Fort Myers run their own building departments, while unincorporated areas go through the county. Collier and Charlotte work the same general way. Search the department that has jurisdiction over the address, not just the county.

When you look up a property, check for:

• Open or expired permits that never got a final inspection.
• A water heater or repipe permit that matches what the seller says was done.
• Work that clearly happened (an added bathroom, a moved laundry) with no permit on file.
• The contractor named on the permit, in case questions come up later.

Florida law changed in 2019 to help with old open permits. A building department may close a permit that’s been open more than six years if it finds no apparent safety hazard, and it can’t deny a new permit to an arm’s-length buyer just because a previous owner left a permit open. That doesn’t erase the issue for every lender or title company, so closing out open permits is still the cleaner route.

Closing out an open plumbing permit

An open permit usually means the work was done but the final inspection never happened. Sometimes the original contractor can just call it in. Other times that contractor is gone and the permit has expired.

When we step in, the usual steps are: confirm with the building department what it needs, look at the installation to see if it would pass, correct any deficiencies, and then either finalize under the existing permit or pull a new one to cover the work. Some departments allow a change of contractor on the existing permit and some don’t. Leave room on the calendar for this, because the inspection schedule belongs to the building department, not to us or the closing.

Documentation agents should collect

Underwriters, buyers and title companies keep asking for the same handful of things. Having them ready keeps a deal moving.

• Contractor invoices that describe the work, the material and the address, not just a line that says plumbing repair.
• Permit numbers and proof of final inspection, ideally a printout of the permit record showing finaled status.
• Photos of the finished work, especially the water heater data plate, the pan and expansion tank, and the TPR discharge.
• Sewer camera video and a written summary of findings.
• The updated 4-point report if one was done after repairs.
• Any warranty paperwork from manufacturers on the water heater or other equipment.

For a water heater replacement done for a sale, ask for the invoice to show the install date and the unit’s model and serial number. Insurers often care about age, and that’s the easiest way to prove it.

Working around a closing date

Plumbing timelines in a sale are driven by three outside clocks: the contract’s inspection period, the buyer’s insurance binding deadline and the building department’s inspection schedule. We control the work, not those clocks.

Here’s how we’d sequence it when time is tight:

• Day one: send us the inspection report, photos and the closing date. We’ll tell you which items need a permit.
• Inside the inspection period: camera inspection and written estimates so the buyer can decide or negotiate.
• After the repair agreement: schedule the work, pull permits and book the final inspection as early as the department allows.
• Before closing: send the invoice, the permit record and photos to the buyer’s agent and the insurance agent, and schedule the updated 4-point if the carrier requires one.

A whole-house repipe takes the longest, because it involves permitting, opening walls and an inspection before patching. If a repipe is on the table, raise it the same day the inspection report comes in.

Notes for buyers of vacant and seasonal homes

A lot of Southwest Florida homes sit empty for months each year. Water turned off at the main, toilets unused and drain traps dried out lead to specific problems: flapper valves that stick, supply lines that crack at the fittings once pressure returns, and sewer gas coming up through dry traps. A home inspector testing fixtures for a few minutes may not catch a supply line that starts weeping the next day.

When a home has been vacant, ask for the water to be on for at least a day before inspection, and look under every sink afterward. Check the water heater too. A tank that sat full and unused for a long time can produce sediment and a sulfur smell when it’s first used again.

How we work with agents

We’re a residential and commercial plumbing contractor based in Fort Myers, serving Lee, Charlotte and Collier Counties. We’re insured. Office hours are Monday to Friday, 8am to 5pm, and we take urgent calls by phone outside those hours when we can.

For agents, the useful part is that we write estimates and invoices meant to be read by someone who wasn’t there: clear descriptions, materials named, permit status stated. Send the inspection report and photos to help@homeflowfl.com, call (239) 518-4198, or use the request form and mention the closing date.