Plumber for Mesa del Mar homes in Costa Mesa
Mesa del Mar is a small residential neighborhood in Central Costa Mesa, known for single-story ranch homes near TeWinkle Park and the fairgrounds. Homes listed there date from the early 1960s, so slab leaks, aging laterals and remodel plumbing top our list of calls.
Call (657) 669-4766Request service
Written and fact-checked by John, editor, MBA in marketing
Updated against City, utility and state sources
Quick answer
Mesa del Mar is an informal neighborhood name in Central Costa Mesa, ZIP 92626, with no official City boundary we could verify. Listings there describe early-1960s single-story ranch homes and a few small townhouse buildings. Common plumbing calls are slab leaks in original copper, root-damaged clay laterals, garage water heaters and plumbing for casitas and remodels. Call (657) 669-4766 any hour.
- Area
- Central Costa Mesa, ZIP 92626
- Typical home
- Single-story ranch, early 1960s
- Median sale price
- $1.4M, March 2026 (Redfin)
- Nearby
- TeWinkle Park and the OC fairgrounds
Mesa del Mar at a glance
Mesa del Mar is a residential neighborhood name used by Redfin and the local MLS for a group of single-family streets in Central Costa Mesa.
- What it is
- An informal neighborhood name, not a City district. Redfin has a Mesa del Mar neighborhood page, and the local MLS tags listings with a Mesa Del Mar subdivision code.
- Where
- Central Costa Mesa. A local guide lists Mesa del Mar among the areas inside Central Costa Mesa, along with Halecrest.
- Streets in listings
- Listings we found are on Presidio Dr and Mission Dr
- Typical home
- Single-story ranch homes. One 1962 listing on Presidio Dr has 3 bedrooms, 2 baths, about 1,501 square feet on a lot of about 6,510 square feet, with an attached 2-car garage and no HOA.
- Other housing
- Some small townhouse-style buildings, such as two adjacent eight-unit buildings on Mission Dr
- Market
- Redfin's median sale price was $1.4M in March 2026, down 7.1% from a year earlier
- ZIP code
- 92626
- Sewer
- Costa Mesa Sanitary District local sewers, treated by OC San
The setting: parks, the fairgrounds and Spanish street names
Mesa del Mar listings describe a quiet residential pocket close to TeWinkle Park, the OC Fair & Event Center and the open space of Fairview Park and the Back Bay.
One Mesa del Mar listing on Presidio Dr describes the neighborhood as close to TeWinkle Park, the OC Fairgrounds, dog parks, tennis courts and horse stables. It also points to Upper Newport Bay Nature Preserve, Fairview Park and Talbert Regional Park for hiking and biking, and Davis Elementary for school access. Others describe quiet streets and cul-de-sacs.
TeWinkle Park, at 970 Arlington Dr, covers 49 acres with a lake and 12 tennis courts. The City dedicated it on January 31, 1965, and named it for Charles TeWinkle, who was elected the first mayor of the newly incorporated city in 1953. The OC Fair & Event Center at 88 Fair Drive sits on the former Santa Ana Army Air Base and draws more than one million visitors a year.
A note on the street names
Presidio, Mission and other Spanish names recall California's mission and rancho era. The City's historical preservation map describes an El Camino subdivision east of Fairview Rd, past the end of Adams Ave, whose street names reference the Mission and Rancho periods. We have not found a source that says Mesa del Mar and that subdivision are the same area, so treat that as background, not a boundary.
What early-1960s ranch homes mean for your plumbing
A Costa Mesa ranch home from the early 1960s usually sits on a concrete slab with copper supply lines, cast iron drains and a clay sewer lateral, all now more than 60 years old.
Costa Mesa built most of its homes in two decades. The City's 2021 Housing Element counts 25.4% of homes from the 1960s and 24.1% from the 1970s, and about 73% of all homes before 1980. Mesa del Mar is part of that wave. The plumbing in these homes was solid for its time. After six decades, it is wearing out in predictable places.
| System | Common when built | Common failure today | Where to read more |
|---|---|---|---|
| Supply lines | Copper, some runs in or under the slab | Pinhole leaks and slab leaks | Leak detection |
| Drains under the slab | Cast iron | Scale, cracks and slow drains | Drain cleaning |
| Sewer lateral | Vitrified clay | Roots at joints, offsets, sags | Sewer line repair |
| Water heater | Gas tank in the garage | Age, sediment, missing seismic straps | Water heater repair |
| Gas lines | Black steel | Old connectors, overloaded lines after remodels | Gas line plumber |
Single-story homes have one advantage: everything is on one level, and attic access often lets us reroute pipe overhead instead of breaking the slab. That matters when a slab leak shows up.
Slab leaks in Mesa del Mar homes
A slab leak is a leak in a water line under or inside the concrete floor, and in early-1960s Costa Mesa homes it is one of the most common hidden plumbing failures.
Signs of a slab leak
- A warm spot on the floor, often near the kitchen or a bathroom
- The sound of running water when every fixture is off
- A water bill that jumps with no change in use
- Damp carpet or a floor that feels cool and wet with no spill
- The water heater running more than usual
The EPA's WaterSense program suggests a simple test: read your meter, use no water for two hours, then read it again. If it moved, there is a leak somewhere. WaterSense estimates household leaks can waste more than 9,300 gallons a year. Mesa Water's 2026 rate is $6.38 per unit, and one unit is 748 gallons, so a hidden leak shows up on the bill.
Confirm the leak
We check the meter and isolate the hot and cold sides to see which line is leaking.
Locate it before cutting
We use acoustic and pressure methods to find the leak's position so nobody opens a floor on a guess.
Choose the repair
Options include a spot repair through the slab, rerouting the line through the attic or walls, or repiping the house if the copper is failing in many places.
Permit when required
A reroute or repipe is permitted work in Costa Mesa. Water Repipe is a listed work type on the City's plumbing permit application.
Published estimates put slab leak detection at $150 to $600 and slab leak repair at $630 to $4,400 (HomeAdvisor via Angi, 2024). A whole-house repipe runs $1,500 to $15,000 (Angi). These are national ranges, not our prices. Call (657) 669-4766 for an exact quote. Our repiping page compares PEX and copper.
Some Mesa del Mar owners have already made the switch. One recent listing in the neighborhood names PEX plumbing among its updates, next to a 200-amp electrical panel and new double-pane windows.
Sewer laterals and roots near the parks
Original clay sewer laterals in 1960s Costa Mesa homes are prone to root intrusion, and a main line that clogs more than once a year usually has roots or a broken joint.
Mature yards and street trees are part of what makes these blocks pleasant. They also send roots toward any sewer joint that leaks moisture. The Costa Mesa Sanitary District's sewer permit guide notes that existing laterals in the street or alley are 6-inch clay.
Roots and grease have a cost beyond your yard. On May 2, 2025, about 4,000 gallons of sewage spilled at East Mesa Verde Dr and Golf Course Dr, with about 3,000 gallons recovered. Tree roots and cooking grease were blamed, and the county temporarily closed ocean waters near the Talbert Channel. Keeping your own lateral clear helps the whole system.
Warning signs
- Gurgling toilets when the washer drains
- Backups into the tub or shower
- Several slow drains at once
- Sewer smell near the cleanout
What we do
- Clear the line from the cleanout
- Camera inspect and show you the video
- Give written repair options
- Handle CMSD permits when a lateral changes
If a project builds or changes a lateral, CMSD requires a sewer plan. A lateral being reused must be camera inspected, the video sent to CMSD and any defects repaired. Ask CMSD at (949) 645-8400 where its responsibility begins for your address. Our sewer lateral guide and hydro jetting page have more detail.
Casitas, ADUs and remodels: plumbing that needs planning
Adding a casita, a bathroom or a bigger kitchen to a Mesa del Mar home puts new load on 1960s drains, gas lines and the sewer lateral, so plan the plumbing first.
Mesa del Mar's lots leave room to grow. One listing in the neighborhood describes a separate casita, RV parking and solar panels on a single property. Another describes a large backyard with room for a pool. Each of those changes touches the plumbing.
| Project | Plumbing questions | City permit work types that may apply |
|---|---|---|
| Casita or ADU with a bathroom | How the new drain ties into the lateral; whether the lateral is sound enough to reuse | Sewer Connect, Sewer Private Line |
| Kitchen remodel | Drain condition under the slab; gas line size for a new range | Gas Repipe |
| Tankless water heater | Gas line size, venting, location | Gas Repipe, plus the water heater inspection |
| Full repipe during a remodel | PEX or copper, attic routing | Water Repipe |
| Water heater replacement | Expansion tank, straps, relief drain | Expansion Tank |
The work types above appear on the City of Costa Mesa plumbing permit application. Building Safety is at 77 Fair Drive, 2nd floor, phone 714-754-5273, with permits and inspections in TESSA. Construction hours are Monday to Friday 7 a.m. to 7 p.m. and Saturday 9 a.m. to 6 p.m., with none on Sundays or major holidays. See our permit guide for the details.
Garage water heaters and the City standard
A replacement water heater in a Mesa del Mar garage must meet the City of Costa Mesa water heater installation standard, which covers straps, relief drains and pipe materials.
The City's standard (form dated 09-2024) requires seismic straps at the upper and lower third of the tank, a relief drain of at least 3/4 inch, and no shutoff or check valve before or after the T&P relief valve. It bars PEX or similar plastic tubing within the first 18 inches of the heater. It also bars water heaters in bedrooms and bathrooms and requires the heater not be visible to the public. That last rule matters if you are thinking about moving a heater outside.
The U.S. Department of Energy says tank water heaters typically last 10 to 15 years. Mesa Water's local groundwater averaged about 6.6 grains per gallon of hardness in 2025, with a range of about 1.2 to 17. The water itself is 100% local groundwater from nine wells and the Mesa Water Reliability Facility, which removes the natural amber tint from deep wells with nanofiltration. Our water hardness guide tells that story.
Angi's 2025 published range for a tank replacement is $600 to $2,500 installed, and its 2026 range for a tankless install is $1,404 to $3,901. Call (657) 669-4766 for an exact quote. See tankless water heaters if you are weighing a switch.
Townhouse buildings and rentals in Mesa del Mar
Mesa del Mar is mostly single-family, but small townhouse buildings like the eight-unit pairs on Mission Dr bring shared-line plumbing and landlord questions.
A recent listing at 1012 and 1018 Mission Dr describes two adjacent buildings with eight townhouse-style units, each with 2 bedrooms, 1.5 baths and a private yard, averaging about 1,175 square feet. Four units had been renovated after 2021. Buildings like this often share a sewer lateral and sometimes share water heating or a meter, so one clog or leak can affect several households.
Costa Mesa is mostly a city of renters. The City's 2023 economic profile puts owner occupancy at 40.3%. If you rent, report leaks to your landlord in writing right away. If you own a small building, our landlord and property manager page covers tenant coordination, written reports and planned repipes unit by unit.
- Know which units share each sewer lateral and cleanout
- Label every unit's water shutoff
- Track the age of each water heater
- Camera the lateral before a renovation, not after
- Keep permit records for every unit you update
Buying a home in Mesa del Mar: plumbing checks before you close
For a 60-year-old house, a sewer camera inspection and a water heater check before closing are the two plumbing steps most likely to save money.
Redfin's Mesa del Mar median sale price was $1.4M in March 2026, down 7.1% from a year earlier. At that price, a hidden sewer or slab problem is worth finding before you sign. A general home inspection usually does not include a sewer camera.
Sewer camera inspection
Shows roots, cracks, offsets and sags in the lateral. Angi's 2026 published range is $275 to $1,800.
Water meter test
With all fixtures off, a moving meter points to a leak, possibly under the slab.
Water heater age and install
Check the date on the label and whether it meets the City standard.
Permit history
Ask whether past repipes, water heaters and additions were permitted. Unpermitted work can come back at resale.
These are published national ranges, not our prices. Call (657) 669-4766 for an exact quote, and see our Costa Mesa plumbing costs guide for more.
Who to call for water, sewer and gas in Mesa del Mar
Sewer service comes from the Costa Mesa Sanitary District, gas from SoCalGas, and water from Mesa Water District or IRWD depending on your address.
- Mesa Water District
- Serves most of Costa Mesa. 949-631-1200; after hours press 9 for Costa Mesa Police dispatch or call 714-754-5251
- IRWD
- Serves parts of Costa Mesa. 949-453-5300. Check your bill.
- Costa Mesa Sanitary District
- 290 Paularino Ave; (949) 645-8400; curbside trash for homes and buildings up to 4 units, hauled by CR&R
- SoCalGas
- Gas leaks: 1-800-427-2200
- SCE
- Downed wires: call 911, then 1-800-611-1911
- City Building Safety
- 77 Fair Drive, 2nd floor; 714-754-5273
Our who to call for water and sewer guide explains which agency handles which problem.
Neighborhoods near Mesa del Mar
Mesa del Mar is one of several residential pockets in Central Costa Mesa, and its neighbors share some plumbing patterns but differ in age and housing type.
Our Central Costa Mesa page covers the fairgrounds, Orange Coast College and TeWinkle Park area as a whole. West across Fairview Rd is College Park, a late-1950s tract with university street names. North past the I-405 is South Coast Metro and SoBeCa, and toward the Back Bay is the Eastside. We cover all of Costa Mesa, so call even if your street is not on any of these pages.
We never promise a specific arrival time. You get an honest arrival window and a written price before work starts. For a burst pipe or a backup after hours, our 24/7 emergency plumber line is answered all night.
Water where it shouldn't be? Call now.
A real person answers 24 hours a day. You get an honest arrival window and a written price before any work starts.
Questions Costa Mesa homeowners ask
Where is Mesa del Mar in Costa Mesa?
Mesa del Mar is an informal neighborhood name in Central Costa Mesa, ZIP 92626. We could not verify official boundaries. Listings there are on streets such as Presidio Dr and Mission Dr and describe being close to TeWinkle Park and the OC Fair & Event Center.
How old are the homes in Mesa del Mar?
Many date from the early 1960s. One single-story ranch home on Presidio Dr is listed as built in 1962. Across Costa Mesa, the City's Housing Element shows about a quarter of all homes were built in the 1960s.
What are the signs of a slab leak in a Costa Mesa ranch home?
A warm spot on the floor, the sound of running water with every fixture off, damp flooring and a higher water bill. Shut off all water and watch the meter for two hours; if it moves, call (657) 669-4766 for leak detection.
Do I need a permit to add a bathroom or casita in Costa Mesa?
Yes. New plumbing for a casita, ADU or added bathroom needs a City of Costa Mesa permit, and connecting to the sewer may involve the Costa Mesa Sanitary District's lateral rules. Building Safety is at 77 Fair Drive, 714-754-5273.
Should I get a sewer camera inspection before buying in Mesa del Mar?
Yes, for a home built in the 1960s. A camera shows roots, cracks and sags in the original clay lateral that a general inspection usually misses. Angi's 2026 published range is $275 to $1,800; call (657) 669-4766 for an exact quote.
What is the median home price in Mesa del Mar?
Redfin reported a median sale price of $1.4M for Mesa del Mar in March 2026, down 7.1% from a year earlier. Prices change monthly, so check Redfin's neighborhood page for the latest figure.
Who do I call for a sewer backup in Mesa del Mar?
Call a plumber to clear your home's drains and lateral. If you think the public sewer is the problem, call the Costa Mesa Sanitary District at (949) 645-8400 and ask where its responsibility begins for your address. Our line, (657) 669-4766, is answered 24/7.
Is Mesa del Mar water hard?
Moderately. Mesa Water's 2025 local groundwater averaged about 6.6 grains per gallon, with a range of about 1.2 to 17, and imported backup water averaged about 14. If your bill says IRWD, check IRWD's water quality report instead.
Sources
Facts on this page come from these public sources, checked November 1, 2026.
- Redfin, Mesa del Mar neighborhood
- Listing, 927 Presidio, Costa Mesa (Mesa Del Mar subdivision, built 1962)
- West Coast Self-Storage, five best Costa Mesa neighborhoods
- City of Costa Mesa, historical preservation map (street names)
- City of Costa Mesa, history of parks and facilities
- City of Costa Mesa, history
- Wikipedia, Costa Mesa, California
- City of Costa Mesa Housing Element, April 2021
- City of Costa Mesa, 2023 economic profile
- Mesa Water District 2026 consumer confidence report
- Mesa Water Reliability Facility
- Mesa Water District, contact us
- IRWD 2026 report
- ISDOC, Costa Mesa Sanitary District
- CMSD sewer permit guide
- New University, May 2025 sewage spill report
- City of Costa Mesa Building Safety
- City of Costa Mesa plumbing permit application
- City of Costa Mesa water heater installation standard
- SoCalGas emergency information
- Angi, water heater installation cost
- Angi, tankless water heater cost
- Angi, cost to repipe a house
- Angi, hydro jetting cost (camera range)
- HomeAdvisor via Angi, slab leak repair cost
- EPA WaterSense: Fix a Leak Week