Asbestos and Lead After Water Damage in Phoenix
Published October 8, 2026 · Last reviewed October 8, 2026 · Water Fighters Restoration
The leak is in the hall bathroom of a house built in 1962. The wall behind the vanity is soft at the bottom, the baseboard has a tide line, and the lower drywall has to come out. Before anyone cuts, there's a second question that has nothing to do with water: what is the wall made of?
Water damage forces demolition on the leak's schedule, not yours. About 40 percent of the City of Phoenix's housing was built before 1980. This page covers who does what under the rules in Maricopa County, not how to handle any of it yourself.
What may be in an older wall or floor
EPA lists textured paint and patching compounds used on walls and ceilings, vinyl floor tiles, the backing on vinyl sheet flooring, and flooring adhesives among asbestos-containing products. An older CPSC and EPA booklet adds hot water and steam pipes coated or wrapped in asbestos material. EPA's key line is that exposure may occur only when the material is disturbed or damaged. A tear-out is a disturbance.
There's no safe cutoff year. EPA's 1989 ban was overturned in 1991, and Maricopa County's air quality department says asbestos-containing materials are still manufactured and used. For the buildings it regulates, the inspection requirement applies regardless of build date. The ceiling guide covers popcorn texture and the 1977 myth.
Before anything is cut
EPA's advice to homeowners is short: "If you suspect material contains asbestos, don't touch it," and "If in doubt, treat the material as if it contains asbestos and leave it alone." The CPSC booklet adds, "Don't saw, sand, scrape, or drill holes in asbestos materials." Close the house valve where the line enters the home, keep people out of the wet area, and leave damaged walls and floors as they are.
Extraction and drying can usually start without disturbing suspect materials, while cutting, scraping or removing them waits on testing or on a decision to treat them as asbestos. Water Fighters Restoration is Open 24 hours, 7 days, and on-site within an hour.
Which asbestos rules apply to your building
Maricopa County's asbestos inspection and notification rule doesn't apply to a single, owner-occupied, solely residential parcel with four or fewer detached homes. Here is how the county's rule and handbook sort buildings:
- A single-family home you own and live in, on its own parcel. Exempt from the county rule. EPA's advice and federal worker-safety rules still apply.
- A condo or apartment complex with more than one building, or any building with five or more units. Regulated. For a complex with more than one building, the number of units in each building doesn't matter.
- Anything an association owns, operates or maintains, such as roofs, walls, pools and clubhouses. Regulated. The HOA and condo guide covers who maintains what.
- Any home that is used, or ever has been used, for commercial, institutional or industrial purposes. Regulated.
- Less common cases, such as homes renovated together as part of a larger project, military housing, and homes used for firefighter training. Regulated.
Townhomes and condos that share walls or ventilation may not fit the county's description of an exempt home. If the house is a rental the owner doesn't live in, check with the County's Asbestos NESHAP Hotline, 602-506-6708, before work starts.
What a regulated building has to do
Before renovation, a regulated building needs a survey by an AHERA-certified building inspector. The exception in Rule 370: the inspection isn't required if the owner treats the materials as regulated asbestos and follows every rule for removing, handling and disposing of it.
A renovation notification and fee are due when regulated asbestos at or above 260 linear feet of pipe, 160 square feet, or 35 cubic feet will be disturbed. The notice goes in 10 working days before work starts, a count that includes holidays but not weekends. Every demolition at a regulated building needs a notification, whether asbestos is found or not.
Lead is a separate federal rule
EPA's Renovation, Repair and Painting rule covers anyone paid to do work that disturbs paint in housing and child-occupied facilities built before 1978. EPA estimates lead-based paint is likely in 24 percent of homes built from 1960 to 1977, 69 percent from 1940 to 1959, and 87 percent before 1940. Paint in good shape is usually not a problem, EPA says, but renovation may create large amounts of lead dust.
For non-emergency work, the firm gives the owner EPA's Renovate Right pamphlet no more than 60 days ahead and gets a written acknowledgment, or mails it at least 7 days ahead. In Arizona, EPA runs the program itself, and the firm doing the work must hold EPA's RRP firm certification. Water Fighters is an EPA Lead-Safe Certified Firm.
Insurance and the rebuild
The documentation shows why each step was needed: what was wet, what came out, and what any test results said. Water Fighters bills the insurance company directly, and the estimate you receive is the same one your insurer receives. One team does mitigation and rebuild, so the rebuild picks up from the same file. Plaster homes from the 1920s to 1940s add their own layer, which the Encanto page covers, and old vinyl under newer floors is in the flooring guide.
Common Questions
We own the house and live in it. Does Maricopa County's asbestos rule apply to a water-damage tear-out?
Not if the house fits the exemption exactly. Rule 370 says its asbestos section "shall not apply to demolition or renovation activity involving any single owner-occupied solely residential parcel which contains 4 or fewer detached dwelling units." That covers only the county rule. EPA advises leaving suspect material alone until a trained, accredited professional samples it, and the federal worker-safety standard still applies to the crew doing the work.
If the leak is an emergency, can the wet drywall come out before the asbestos results are back?
In a regulated building, usually not: the emergency changes the notice timing, not the inspection. If the work will disturb regulated asbestos at or above the federal thresholds, the federal rule lets notice go in as early as possible, but no later than the following working day. The inspection still comes before the renovation, unless the owner treats the materials as regulated asbestos and follows every removal rule.
Does lead-safe work apply to water-damage repairs, or only to painting?
It applies to paid work that disturbs paint in pre-1978 housing, whatever the trade. EPA names plumbers, carpenters and electricians among those covered. Disturbing six square feet or less of painted surface per room inside, or 20 square feet or less outside, is exempt. Window replacement and demolition of painted surfaces are always covered regardless of square footage, so drywall cuts and trim removal in an older house can fall under it.
Our pre-1978 house flooded overnight. Do the lead rules pause for an emergency?
Partly. For an emergency renovation, the pamphlet step doesn't apply. Warning signs, containment, waste handling, and training and certification are exempt only to the extent necessary to respond to the emergency. Three things still apply: the cleaning, done by certified renovators or trained individuals; cleaning verification by a certified renovator; and the records.
Who is allowed to take the asbestos samples?
EPA says a trained and accredited asbestos professional should take them, and that taking samples yourself is not recommended. For regulated buildings in Maricopa County, the survey must be done by an AHERA building inspector. The samples go to a lab accredited under the National Voluntary Laboratory Accreditation Program, and material with more than 1 percent asbestos counts as asbestos-containing.