Rainy season and the mesa: what changes after a storm
Costa Mesa sits on a mesa, a coastal tableland about 98 feet above sea level, with its southern edge roughly a mile from the Pacific. Higher ground helps water drain away from many properties, but roofs, windows and ground-floor doors still take the hit when heavy rain arrives. The first weeks of the wet season are when stained ceilings and swollen door frames show up in our calls.
Prepare before the first storm by checking roof flashing, clearing gutters and knowing where your main shutoff is. If water does get in, our emergency water removal team extracts first, and then the drying plan begins.
When water is spreading in Costa Mesa, use this decision guide
Whether you rent or own changes who you call first. The water itself still needs to come out fast.
| Where the water started | Who to notify | What we do |
|---|---|---|
| Your own unit, such as a hose or fixture | Your landlord or HOA, and your insurer | Extract, set air movers and dehumidifiers, document |
| The unit above yours | Your landlord or property manager, then your insurer | Extract, check ceiling and wall cavities for trapped water |
| Roof or window during a storm | Your insurer and the property owner | Contain, dry and map moisture before any rebuild |
| Sewage from a drain | Your landlord or the sewer agency, and a cleanup crew | Contain, remove contaminated material, sanitize |
Leak in your Costa Mesa unit?
Call (714) 515-1308. Tell dispatch whether the water came from your unit or from above.
A city where six in ten homes are rented
In 2020 about 61.1 percent of occupied homes in Costa Mesa were renter-occupied, and 38.9 percent were owner-occupied. For a renter, that number matters in practice. Your landlord is usually responsible for the building, while your renters insurance, if you have it, relates to your belongings, so read the policy and ask your insurer.
For owners and landlords, shared walls and ceilings mean a leak travels. We check adjacent units during water mitigation and write down what we find so repair and insurance conversations have a record.
If water is still spreading
Choose the steps that are safe at your address.
Find the valve
Close the fixture valve or the main. In an apartment, ask the manager for the building shutoff.
Stay off wet carpet near outlets
If the floor is soaked and power strips sit in the water, leave the panel alone and call the utility.
Move valuables up
Put electronics, documents and shoes on a dry counter or shelf.
Alert neighbors below
A quick knock can limit damage in the unit under yours.
South Coast Plaza, the fairgrounds and busy-site jobs
South Coast Plaza has over 270 stores and the Segerstrom Center for the Arts sits nearby. The Orange County Fair runs each July with the Pacific Amphitheatre next door. Busy commercial areas like these mean traffic, tight parking and shared building systems, so a business owner should tell dispatch the suite, floor and nearest entrance.
Costa Mesa also lines up with the Santa Ana River side of the old Tongva and Acjachemen villages on the bluffs, a reminder that this ground has been shaped by water for a long time. Ask your insurer about flood coverage separate from the standard policy, since flood damage is usually excluded.
After the water is out
Questions to ask before rebuilding
- Has the crew documented moisture readings in every wet room?
- Which materials were removed and why?
- Does the repair scope need a permit? Ask the Costa Mesa Building Safety division.
- Has the area been checked for hidden dampness in the wall cavity?
- Is the written scope clear about what is drying and what is replacement?
Once drying is done, our water damage repair crews rebuild. Nearby, we also serve Santa Ana and Huntington Beach.
Costa Mesa coverage map
The map centers on Costa Mesa, from the South Coast Plaza area to the fairgrounds side of town.
Frequently Asked Questions
Yes. We cover 92626 on the north side near South Coast Plaza and 92627 across the southern part of town toward the fairgrounds and the Newport Beach line. The PO box ZIP 92628 is not a street address.
Yes. Dispatch is open 24/7, and crews are sent when available at any hour, including weekends. Tell us whether you are in a house, an apartment or a business suite.
Both. Tell your landlord right away since the building belongs to them, and call us if you need the water extracted now. Ask your own insurer how your policy treats belongings and temporary housing.
Yes, they can. Water that enters through a roof or window saturates insulation and drywall, so moisture mapping comes before any patching.