Water Heater Replacement & Installation
Professional installation of traditional tank water heaters. Energy-efficient options to fit your home and budget.
Professional Water Heater Replacement & Installation in Orange County
When your water heater reaches the end of its life, a professional replacement ensures you get the right unit for your home, installed safely and to code. KCB Plumbing has installed thousands of water heaters across Orange County, and we help homeowners choose the best option for their household size, hot water demand, and energy efficiency goals.
Today's water heaters are significantly more energy-efficient than models from even 10 years ago. Standard gas water heaters now achieve 67-70% thermal efficiency, while heat pump hybrid models can exceed 300% efficiency (using heat from the air to warm water). The right choice depends on your home's configuration, available space, fuel type, and hot water usage patterns.
Our installation process is thorough and code-compliant. We remove and dispose of your old unit, install the new water heater with proper connections, ensure seismic strapping meets California requirements, verify gas connections (for gas units), test the unit, and obtain any required permits and inspections.
Need Water Heater Replacement & Installation?
Call for a free over-the-phone estimate. Upfront pricing, no surprises.
(714) 894-6520Our Process
How It Works
Assessment & Sizing
We evaluate your household's hot water needs, available space, and fuel options to recommend the right water heater size and type.
Selection
We present options at different price points with clear explanations of efficiency ratings, warranty coverage, and expected lifespan.
Old Unit Removal
We safely disconnect and remove your old water heater, including proper disposal.
Installation
The new unit is installed with new supply connections, proper venting, seismic straps, drip pan, and expansion tank as required by code.
Testing & Walkthrough
We test the unit, set the temperature, and walk you through basic operation and maintenance.
Why Choose KCB for Water Heater Replacement & Installation
- Upfront flat-rate pricing — you approve before we start
- Licensed (#604044), insured, and bonded
- 99.9% on-time guarantee
- 4.9 stars across 50+ Google reviews
- 27+ years serving Orange County
- Workmanship guarantee on all repairs and installations
What Affects Pricing
We provide transparent, upfront pricing before any work begins. Here are the factors that affect the cost of water heater replacement & installation:
- Water heater type and size (40, 50, 75 gallon, or tankless)
- Brand and model selected
- Required modifications to plumbing, gas, or venting
- Permit and inspection fees
- Disposal of old unit
Common Questions
Water Heater Replacement & Installation FAQ
What size water heater do I need?
For a household of 1-2 people, a 40-gallon tank is usually sufficient. For 3-4 people, we recommend 50 gallons. Households of 5+ may need a 75-gallon tank or a tankless system. We factor in your specific usage patterns during our assessment.
How long does water heater installation take?
A standard tank water heater replacement takes 2-4 hours. If we need to make plumbing or venting modifications, it may take longer. We provide a specific timeline during your estimate.
Should I switch from tank to tankless?
Tankless water heaters offer unlimited hot water and take up less space, but they cost more upfront. If you plan to stay in your home long-term, the energy savings and longer lifespan often justify the investment. We can compare costs for both options during our consultation.
Does a new water heater need a permit?
Yes, water heater replacements require a permit in most Orange County jurisdictions. We handle all permitting and schedule the inspection. This ensures your installation meets current code requirements including seismic strapping, expansion tanks, and proper venting.
What brands do you install?
We install and service all major brands including Rheem, Bradford White, A.O. Smith, Rinnai, Noritz, and Navien. We can recommend specific models based on your needs and budget, or install a unit you've already selected.
Water Heater Replacement & Installation Throughout Orange County
We provide water heater replacement & installation services across all of Orange County. Click your city to learn about local plumbing needs:
Other Tankless & Water Heater Services Services
Water Heater Repair & Maintenance
All brands and types. We diagnose issues quickly and restore your hot water with lasting repairs.
Learn more →Tankless Water Heater Installation
Upgrade to endless hot water with a tankless system. Energy-efficient, space-saving, and built to last.
Learn more →Tankless Water Heater Repair & Flush
Factory-certified specialists for Rinnai, Noritz, and Navien. Annual flush and diagnostic services to prevent scale buildup and maintain peak performance.
Learn more →Related Services
Explore other plumbing services that complement water heater replacement & installation.
Residential Plumbing
Complete residential plumbing services from new construction to everyday repairs. We handle everything so your home runs smoothly.
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Professional drain cleaning that goes beyond the surface. We clear blockages and keep your drains flowing for the long term.
View services →Leak Detection & Repair
Hidden leaks waste water and cause damage. Our advanced detection finds leaks fast, and our repairs are built to last.
View services →Need Water Heater Replacement & Installation?
Call us for a free over-the-phone estimate. We'll get your plumbing taken care of right.