Enjoy endless hot water and lower bills
Water Heater Installation
Serving Knoxville for 30+ Years
Knoxville homeowners have counted on The Plumbing Authority for over 30 years of honest answers, skilled workmanship, and customer-focused service.
Up-Front Pricing
From plumbing repairs to new installations and everything in between, we offer fair, upfront pricing you can trust with no hidden fees or surprises.
Fixed Right the First Time
Our licensed plumbers get the job done right the first time with accuracy, precision and care so you can get back to your day without the hassle.
Water Heater Installation in Knoxville, TN
Professional installation & replacement, lasting performance.
A reliable water heater in Knoxville is essential for keeping your home comfortable, from providing warm showers to ensuring clean dishes and laundry. If your water heater is no longer delivering consistent hot water, making strange noises, or showing signs of wear and tear, it’s time to take action.
The Plumbing Authority specializes in professional water heater installation in Knoxville, tailored to your home’s specific needs. Our experienced team handles gas, electric, and tankless water heaters, ensuring seamless installation and maximum efficiency. As your trusted local Knoxville plumbing company, we ensure your water heater installation is handled with precision and care.
Whether you’re replacing an outdated unit or upgrading to a more energy-efficient option, we’re here to guide you every step of the way. Call us now!
Book OnlineGoodLeap Financing
No Interest if Paid in Full With Minimum Payment During 12-Month Promo
- 10-year term
- 15.49% rate
- 5.5% dealer fee
No Payment and No Interest if Paid in Full During 12-Month Intro
- 10-year term
- 15.49% rate
- 5.5% dealer fee
Benefits of Installing a New Water Heater in Knoxville
Upgrading to a new water heater is a smart investment that enhances your home’s comfort, efficiency, and savings. Here are some benefits you can look forward to with a professional water heater installation in Knoxville:
- Energy Efficiency: Modern water heaters use less energy, reducing your utility bills
- Reliable Hot Water: Enjoy consistent, on-demand hot water without interruptions
- Lower Maintenance: Say goodbye to frequent repairs and costly breakdowns
- Advanced Features: Benefit from smart controls, faster recovery times and improved insulation
- Eco-Friendly: Reduce your carbon footprint and potentially qualify for energy rebates
- Boosted Home Value: A modern water heater makes your home more attractive to buyers
A new water heater isn’t just about hot water, it’s about long-term comfort and savings. Let The Plumbing Authority help you find the perfect fit for your Knoxville home’s needs!
Book OnlineKnoxville Water Heater Replacement vs. Repair: Which Option is Right for You?
Deciding whether to repair your water heater in Knoxville or replace it can feel overwhelming, but understanding the key factors can help you make the best choice for your home and budget. Here’s a breakdown to guide your decision:
When to Consider Water Heater Replacement
- Age of the Unit: Most water heaters have a lifespan of 10-15 years. If yours is nearing or exceeding this range, replacement is typically more cost-effective in the long run
- Frequent Repairs: If you’re calling for repairs often, those costs can quickly add up. Replacing the unit can save you money and hassle over time
- Inefficiency: An older unit may use significantly more energy than a newer, more efficient model, leading to higher utility bills
- Severe Damage: If your tank is corroded, leaking extensively, or showing signs of failure, replacement is likely the safest option
Our Knoxville Water Heater Installation Process
When you choose us for water heater replacement in Knoxville, we’ll be with you every step of the way to ensure you receive the best service and a reliable water heater.
1. Initial Consultation and Assessment:
We start with an assessment of your current setup and hot water needs to recommend the best water heater options for you.
2. Expert Recommendations:
Based on our assessment, we’ll help you select a high-quality water heater that fits your budget and meets your needs.
3. Professional Installation:
Our skilled technicians will install your new water heater following manufacturer specifications and industry best practices for a seamless experience.
4. Thorough Testing and Quality Assurance:
We’ll thoroughly test your new water heater to ensure it’s working correctly. You’ll also have the opportunity to test it to confirm its performance.
5. Customer Satisfaction:
We prioritize your satisfaction and will address any concerns you have with the installation until you are completely satisfied.
6. Maintenance Guidance:
We’ll provide guidance on proper maintenance to ensure the longevity of your water heater, including tips on regular inspections and maintenance tasks.
7. Ongoing Support:
Our commitment to you continues after installation with ongoing support and water heater maintenance services to keep your system in optimal condition.
Choose The Plumbing Authority for your water heater install in Knoxville and get a team focused on clean workmanship, honest guidance, and reliable hot water—fast. We size and set up your system to handle East Tennessee’s humid summers and chilly cold snaps, and we’re here for future maintenance and repairs to keep it running strong.
Finding the Right New Water Heater for Your Knoxville Home
We’ll match you with a unit that fits your home, budget and routine, no guesswork. Our Knoxville water heater installers will ask a few quick questions to dial in the best option:
- Household size & usage (showers, laundry, dishwasher overlap)
- Fuel type (gas or electric) and utility preferences
- Tank vs. tankless comfort, space, and efficiency goals
- Recovery rate & capacity for morning/evening peak demand
- Install location & venting (clearances, combustion air, code)
- Water quality (scale/hardness—add softener/filtration if needed)
- Budget, rebates, and warranty coverage
From selection to permitting and final startup, we handle everything so you get dependable hot water and a smooth, stress-free install.
Book OnlineHow Much Does Water Heater Replacement Cost in Knoxville, TN?
The cost of water heater replacement in Knoxville depends on several factors, but at The Plumbing Authority, we’re committed to providing clear, upfront pricing and honest guidance, no surprises, just dependable service.
Here’s what typically affects the price of a new water heater in East Tennessee:
- Type of System: Traditional tank-style heaters are generally more affordable, while tankless and hybrid systems cost more upfront but deliver long-term savings and energy efficiency.
- Size and Capacity: Knoxville homes with larger families or high hot-water demand (laundry, dishwashers, multiple showers) may require higher-capacity systems.
- Fuel Source: Gas and electric models have different installation needs—gas often requires proper venting and combustion air adjustments.
- Location and Accessibility: Replacing a unit in a tight crawl space, basement, or utility closet can affect labor time and setup.
- Code and Safety Upgrades: Expansion tanks, updated venting, or permits may add to the project but ensure safe operation and local code compliance—especially with Knoxville’s fluctuating temperatures and humidity.
At The Plumbing Authority, we take the time to explain your options and help you balance cost, efficiency, and performance. You’ll get a transparent estimate and expert installation designed for Knoxville’s unique climate and water conditions.
Book OnlineReady to Upgrade Your Water Heater in Knoxville?
Upgrade to a more efficient, reliable hot water system tailored to East Tennessee homes. The Plumbing Authority will help you choose the right unit and provide a clean, code-compliant installation, so you enjoy consistent hot water for years.
Call today or schedule your Knoxville water heater replacement online!
Call (865) 245-5251Knoxville Water Heater Installation FAQ
Our team can take a look at your needs and let you know our professional opinion. In the end, you need to weigh things like cost, the urgency of your need for hot water, the age of your water heater, and more.
If you have plumbing background, you might attempt it. However, we don’t recommend this, especially with gas water heaters as gas lines can pose danger. DIY installation may void your warranty in some cases.
Most hot water heaters need to be replaced every 10-12 years, though that’s not set in stone. Well-maintained units can last longer and some may not make it that long in Knoxville’s varying conditions.
Water heater size largely depends on how many people live in your house. A standard heater is 40-50 gallons, usually good for 4-5 people. Add 10 gallons for every additional person. We’ll help you find the right size.
The best type depends on your specific situation, including your home’s setup, usage patterns, and energy preferences. Our Knoxville water heater installation experts can help you choose between gas, electric, or tankless options.
Most water heater installations in Knoxville take 2-4 hours, depending on the complexity and whether modifications to existing plumbing or electrical connections are needed. We work efficiently to minimize disruption.
Yes, we handle all necessary permits for water heater installation in Knoxville. We ensure all work meets local building codes and safety requirements, giving you peace of mind about your new installation.




