Tankless Water Heater Installation Costa Mesa – Endless Hot Water for Your Home

When you need tankless water heater installation Costa Mesa families trust Professional Plumbing Inc. to deliver energy-efficient solutions that provide unlimited hot water on demand. We’ve been installing tankless systems throughout Costa Mesa since 1985, helping homeowners in neighborhoods from Eastside Costa Mesa to the communities near South Coast Plaza reduce their energy bills while enjoying the luxury of never running out of hot water. Whether your home is in the established areas around TeWinkle Park or the newer developments near Orange Coast College, our certified technicians have the expertise to handle complete tankless installations that meet all California building codes. Our Costa Mesa office at 3120 Pullman St #C serves as headquarters for our tankless water heater specialists who understand the unique challenges of Orange County’s hard water conditions. From gas to electric tankless units, we install all major brands including Navien, Rinnai, and Noritz with precision and attention to detail. Most Costa Mesa homes see immediate energy savings of 20-40% after switching to tankless technology, plus you get the convienence of instant hot water whenever you need it.
Our Tankless Water Heater Installation Services Include:
- Complete Tankless System Installation – Gas and electric units from all major brands.
- Traditional to Tankless Conversions – Upgrading from tank water heaters.
- Multiple Unit Installations – Whole-house systems for larger homes.
- Outdoor Tankless Installations – Space-saving exterior mounted units.
- Recirculation System Integration – Instant hot water at every tap.
- Annual Maintenance Programs – Descaling and efficiency optimization.
A Perfect Install Near Mesa Verde Elementary
About eight months ago, we installed a Navien tankless system for a family near Mesa Verde Elementary who were tired of running out of hot water during their busy morning routines. With three teenagers in the house, their old 40-gallon tank just couldn’t keep up with back-to-back showers. The challenge was that their home had an older electrical panel that needed upgrading to handle the new tankless unit’s power requirements. We coordinated with an electrician to upgrade their service panel while we handled all the gas line modifications and venting work. The installation took two days because we also added a recirculation pump so they get instant hot water at there master bathroom – no more waiting for hot water to travel from the garage. Now they have unlimited hot water, their energy bills dropped by about $35 per month, and they gained valuable storage space in their garage where the old tank used to be.
| Service Type | Typical Price Range | Project Duration |
|---|---|---|
| Gas tankless installation (standard) | $2,400 – $4,800 | 1-2 days |
| Electric tankless installation | $2,000 – $4,000 | 1 day |
| Traditional to tankless conversion | $2,800 – $5,600 | 1-3 days |
| Multiple unit whole-house system | $4,800 – $9,600 | 2-4 days |
| Outdoor tankless installation | $2,600 – $5,200 | 1-2 days |
| Recirculation system add-on | $800 – $1,600 | 4-6 hours |
Tankless Water Heater Installation Costs – Costa Mesa (2025) Prices include permits, materials, labor, and testing. Electrical upgrades may require additional costs.
How Tankless Water Heater Installation Works
Modern tankless water heater installation starts with a detailed assessment of your home’s hot water usage patterns and existing infrastructure using high-tech flow rate calculators and electrical testing equipment. Our certified technicians determine the right size unit for your family’s needs and identify any upgrades required for gas lines, electrical service, or venting systems.
The latest tankless technology includes condensing units that capture waste heat for even better efficiency, plus smart controls that let you adjust temperatures remotley using smartphone apps. Installation involves precise mounting of the compact unit, usually in your garage or utility room, followed by connections to your existing plumbing system.
Our installation process includes running new gas lines sized specifically for your tankless unit’s BTU requirements, plus installing proper venting systems that meet California’s strict emissions standards. For electric units, we verify your electrical panel can handle the high amperage demands and upgrade circuits as needed.
After installation, we conduct comprehensive testing using digital flow meters and temperature gauges to ensure your system delivers consistent hot water at the proper flow rates. The final step includes programming your unit’s settings and teaching you how to use the advanced features that come with new tankless technology.
Common DIY Mistakes We See in Huntington Beach
One mistake homeowners make is trying to install tankless units in the same location as their old tank water heater. Unlike tanks that can go anywhere with basic connections, tankless units need specific clearances and proper venting to the outside. We’ve seen people mount units too close to windows or property lines, which violates local building codes.
Another issue is undersizing the unit for the home’s needs. Some folks buy tankless systems online without calculating their peak hot water demand. A family near Huntington Central Park learned this the hard way when their new unit couldn’t handle running the dishwasher and shower at the same time. Professional sizing considers how many fixtures might run simultaneously and factors in groundwater temperature throughout the year.
Ready for Unlimited Hot Water? Call Professional Plumbing Inc. Today!
Stop running out of hot water and start saving money with a professional tankless water heater installation. Our licensed technicians handle everything from permits to final inspections, ensuring your new system operates safely and efficiently for years to come. We’re authorized dealers for all major tankless brands and offer comprehensive warranties on our installation work. Call us now at 949-646-5511 or schedule your consultation online – your family deserves endless hot water!
What Local People Say About Us
Frequently Asked Questions
How much does tankless water heater installation cost in Costa Mesa?
Professional tankless installation typically costs $2,400-$4,800 for gas units and $2,000-$4,000 for electric models. The price includes permits, labor, materials, and testing. Additional costs may apply if electrical panel upgrades or gas line extensions are needed.
How long does tankless water heater installation take?
Most standard installations take 1-2 days to complete. Complex conversions requiring electrical upgrades or extensive gas line work may take up to 3 days. We provide accurate timelines during your consultation based on your home’s specific requirements.
Do I need permits for tankless water heater installation?
Yes, Costa Mesa requires permits for all tankless water heater installations to ensure safety and code compliance. We handle all permit applications, inspections, and utility notifications as part of our installation service.
What size tankless water heater do I need for my home?
Size depends on your simultaneous hot water usage and flow rates. A typical 3-bedroom Costa Mesa home needs a unit rated for 6-8 gallons per minute. Our technicians calculate your exact requirements based on fixture count and usage patterns during the consultation.
How much money will I save with a tankless water heater?
Most Costa Mesa families save 20-40% on water heating costs, typically $25-$50 per month depending on usage patterns. Tankless units also last 15-20 years compared to 8-12 years for traditional tanks, providing long-term value beyond monthly savings.
Helpful Resources
- California Energy Commission Appliance Efficiency Standards – https://www.energy.ca.gov/rules-and-regulations/appliance-efficiency-regulations
- Uniform Plumbing Code Water Heater Installation Requirements – https://www.iapmo.org/upc
- Department of Energy Tankless Water Heater Efficiency Guide – https://www.energy.gov/energysaver/tankless-or-demand-type-water-heaters


