Logo of Search a Plumber
Hero background

Find the Best Water Heater Installation Companies for Your Business

No obligation • Fast responses • Nationwide coverage

Search providers near you

Best Water Heater Installation Companies in Ohio Ranked

A properly functioning water heater is essential for daily comfort, from hot showers to clean dishes. When your unit fails or becomes inefficient, a timely installation or replacement is crucial. This guide covers the key considerations for Ohio homeowners, including state codes, system types, sizing, and costs, to help you make an informed decision. You can use this information to evaluate your needs and connect with qualified local professionals for your project.

Peps Plumbing Service

Peps Plumbing Service

153 Center St, Chardon, OH 44024

Peps Plumbing Service is a local, family-owned plumbing company serving Cleveland, OH, and surrounding areas including Chardon, Mentor, and Painesville. They provide a wide range of plumbing services such as water heater repair and installation, water softener installation, drain cleaning, leak detection, and gas line installation. Their team is equipped to handle both minor repairs and major plumbing projects, with capabilities including advanced leak detection and gas line inspections. Peps Plumbing Service emphasizes honest pricing and expert workmanship in their community-focused approach.

5.0
768 Reviews
Gunther Plumbing

Gunther Plumbing

3080 Scioto Darby Executive Ct, Hilliard, OH 43026

Gunther Plumbing is a family-owned plumbing company serving Columbus, OH, and surrounding suburbs. With over 20 years of experience, they offer a wide range of residential plumbing services including water heater installation and repair, sump pump maintenance, drain cleaning, sewer line repair, and hydro jetting. Their team uses camera inspection technology to accurately diagnose plumbing issues and provides certified backflow testing to ensure water safety. Gunther Plumbing is known for handling both routine maintenance and emergency repairs efficiently.

5.0
755 Reviews
Affordable Professional Plumbing

Affordable Professional Plumbing

3840 Lacon Rd #21, Hilliard, OH 43026

Affordable Professional Plumbing is a small plumbing company based in Hilliard, OH, serving the Columbus, OH area. They specialize in residential and commercial plumbing services, including water heater installation, toilet repair, faucet replacement, and general plumbing repairs. With over a decade of experience, they handle plumbing repairs, replacements, and installations with a focus on thorough service. The company offers free estimates and emphasizes treating customers like friends. Affordable Professional Plumbing is equipped to repair or replace various plumbing components such as shower valves, water valves, and bathroom fixtures.

5.0
501 Reviews
Foust Plumbing & Heating

Foust Plumbing & Heating

321 W Bigelow Ave Suite 200, Plain City, OH 43064

Foust Plumbing & Heating is a family-owned plumbing and HVAC contractor serving Columbus, OH, and surrounding areas. They offer a range of services including water heater repair and installation, water softener installation, sump pump repair, drain cleaning, gas line installation, and garbage disposal repair. With over 40 years of experience, the company provides skilled technicians and services for all major brands of heating, air conditioning, and plumbing equipment. Emergency service is available for urgent needs.

5.0
433 Reviews
P.K. Wadsworth Heating & Cooling

P.K. Wadsworth Heating & Cooling

Front Unit, 1658 Mentor Ave, Painesville Township, OH 44077

P.K. Wadsworth Heating & Cooling has been serving the Cleveland, OH area since 1936. They offer a range of services including water heater repair and installation, drain cleaning, and general plumbing work. Their experienced technicians handle repairs, replacements, and maintenance for heating, cooling, and plumbing systems. With over 80 years of experience, the company is equipped to manage various HVAC and plumbing needs in the Greater Cleveland area.

5.0
350 Reviews
See more providers in Ohio

Understanding Ohio's Plumbing Codes and Permits

In Ohio, all water heater installations and replacements must comply with state and local regulations designed to ensure safety and efficiency. The primary governing documents are the 2024 Ohio Plumbing Code and the Residential Code of Ohio, which incorporate international standards 1 2 3 4.

A plumbing permit is typically required for replacing a water heater 5. While requirements can vary by municipality, obtaining a permit ensures the work is inspected and meets all safety codes, which is a critical step often handled by your licensed plumbing professional.

Key Installation Standards and Safety Requirements

Adherence to code is non-negotiable. Key requirements for a compliant installation in Ohio include:

  • Manufacturer Instructions & Code Compliance: Installations must follow the manufacturer's specific instructions and all relevant sections of the plumbing code 1.
  • Safety Valves: Every storage tank must have an approved Temperature and Pressure (T&P) relief valve. This critical safety device must discharge to an observable location, such as the floor, a drain, or outdoors 6 7.
  • Shut-Off Valve: A dedicated shut-off valve is required on the cold water supply line to the heater for service and emergency isolation 7.
  • Drain Pans: If the water heater is installed in a location where a leak could cause property damage (e.g., an attic, above finished living space), it must be placed inside a drain pan with a pipe that drains to a suitable location 8.
  • Combustion Air for Gas Units: Fuel-fired water heaters installed in bedrooms, bathrooms, or closets opening into these rooms must be in a sealed enclosure to prevent drawing combustion air from the living space, per the International Fuel Gas Code 2.
  • Energy Efficiency: Ohio aligns with federal energy efficiency standards. A key metric is the Uniform Energy Factor (UEF); a higher rating indicates a more efficient unit that costs less to operate. Unfired storage tanks must be insulated to at least R-12.5 9 5.

Choosing the Right Type of Water Heater

The most common fuel sources for water heaters in Ohio are natural gas and electricity, with the choice largely dependent on what is already available in your home and long-term operating costs 10.

Storage Tank Water Heaters

These are the most common type, featuring an insulated tank that heats and stores a ready supply of water.

  • Natural Gas: Gas models generally heat water faster and have lower operating costs in many parts of Ohio than standard electric models. Installation is more complex, requiring a gas line and proper venting 11 10.
  • Electric: Electric resistance heaters are often less expensive to purchase and install, as they don't require venting. However, they can have higher monthly energy costs 9 12.

Tankless (On-Demand) Water Heaters

These units heat water directly as it flows through the device, providing hot water only when needed.

  • Pros: Virtually unlimited hot water, longer lifespan, and higher energy efficiency (no standby heat loss). They save space due to their compact size.
  • Cons: Significantly higher upfront installation costs, which can range from $3,000 to $4,500+ in Ohio. They may require upgrades to gas lines or electrical service to handle the high instantaneous demand 13 11 14.

Heat Pump Water Heaters (Hybrid)

These are highly efficient electric units that move heat from the surrounding air into the water, rather than generating heat directly.

  • Pros: Can be two to three times more energy-efficient than standard electric resistance water heaters, leading to substantial utility bill savings 9 15.
  • Cons: Higher purchase price. They work best in locations that remain in the 40°-90°F range year-round and require at least 1,000 cubic feet of air space around them (like a basement or utility room) 9.

Other Options

Propane, fuel oil, and solar thermal systems are also available, though they are less common in most Ohio residential settings 15.

Find the perfect water heater installation companies for your needs

Get personalized recommendations and expert advice

Sizing Your Water Heater Correctly

Choosing the correct capacity is vital for meeting your household's demand without wasting energy. Sizing for tank-style heaters is based on gallon capacity and "first-hour rating" (FHR), while tankless units are sized by flow rate (Gallons Per Minute - GPM).

Residential Storage Tank Sizing Guide

A general guideline based on household size is 16 17 18:

  • 1-2 people: 30-40 gallon tank
  • 3-4 people: 40-50 gallon tank (the most common size installed in Ohio)
  • 5 or more people: 50-80 gallon tank or larger

Your actual needs can vary based on the number of bathrooms, appliance use (like a whirlpool tub), and peak usage patterns. A professional can perform a detailed load calculation.

Tankless Water Heater Sizing

Sizing a tankless system requires calculating the total flow rate of all fixtures that might run simultaneously. For example, a shower (2.5 GPM) plus a kitchen faucet (1.5 GPM) requires a unit that can deliver at least 4.0 GPM while raising the water temperature the required amount 17. Proper sizing is critical to avoid disappointment.

Cost Factors for Installation and Replacement in Ohio

The total cost for a new water heater in Ohio varies widely based on the unit type, size, brand, and complexity of the installation. The figures below typically include the unit and professional installation 14 19 20.

  • Standard Tank-Style Replacement (40-50 gallon): This is the most common scenario. For a straightforward "like-for-like" replacement (same fuel type, same location), costs typically range from $1,300 to $2,100 in Ohio 21. Electric units often fall on the lower end of this range, while natural gas units are on the higher end due to venting and gas line work 14 22 23.
  • Tankless Water Heater Installation: As noted, installation is more expensive, generally $3,000 to $4,500 or more. This accounts for the higher-cost unit and potential upgrades to gas lines, electrical service, or venting materials 13 11 14.
  • Heat Pump Water Heater Installation: These high-efficiency units also have a higher initial purchase and installation cost but offer the greatest potential for long-term energy savings 9.
  • Factors That Increase Cost: Any change to the installation adds labor and materials. This includes switching fuel types (e.g., electric to gas), relocating the unit, adding a new expansion tank or pan, upgrading venting, or addressing code violations from the old installation 24.

Maintenance and Efficiency Tips

To extend the life of your water heater and keep it running efficiently:

  • Annual Maintenance: For tank-style units, drain a few gallons from the tank once a year to remove sediment buildup. Have a professional inspect the T&P relief valve, anode rod, and burner/electrical elements periodically.
  • Temperature Setting: The U.S. Department of Energy recommends a setting of 120°F for optimal efficiency and safety (to prevent scalding).
  • Insulation: Adding an insulating blanket to an older tank-style heater and insulating the first few feet of hot and cold water pipes can reduce standby heat loss.

Frequently asked questions

Sources

Footnotes

  1. CHAPTER 5 WATER HEATERS - 2024 OHIO PLUMBING CODE - https://codes.iccsafe.org/content/OHPC2024P1/chapter-5-water-heaters 2

  2. Ohio Admin. Code 4101:8-20-01 - Boilers and water heaters - https://www.law.cornell.edu/regulations/ohio/Ohio-Admin-Code-4101-8-20-01 2

  3. 2024 Ohio Plumbing Code - 502.1 General. - https://codes.iccsafe.org/s/OHPC2024P1/chapter-5-water-heaters/OHPC2024P1-Ch05-Sec502.1

  4. Construction: 2024 Ohio Plumbing Code - https://rocketcert.com/books/2024-ohio-plumbing-code-detail

  5. Plumbing Permits | City of Cleveland Ohio - https://www.clevelandohio.gov/city-hall/departments/building-housing/divisions/permits/plumbing-permits 2

  6. Chapter 28 Water Heaters: Ohio Residential Code 2019 - https://up.codes/viewer/ohio/irc-2018/chapter/28/water-heaters

  7. HOT WATER TANK TYPICAL INSTALLATION REQUIREMENTS - https://richmondheightsohio.org/DocumentCenter/View/170/Hot-Water-Tank-Installation-Requirements-PDF 2

  8. CHAPTER 5 WATER HEATERS - 2024 OHIO PLUMBING CODE - https://codes.iccsafe.org/content/OHPC2024P1/chapter-5-water-heaters

  9. Water Heating | Green Home Technology Center - https://greenhome.osu.edu/energy-efficiency/water-heating 2 3 4 5

  10. How to Tell if Your Water Heater is Gas or Electric - Wilson Plumbing - https://www.wilsonplumbingandheating.com/post/how-to-tell-if-your-water-heater-is-gas-or-electric 2

  11. Tankless vs. Traditional Water Heaters - A Cleveland Comparison - https://plumbingsource.net/tankless-vs-traditional-water-heaters-cleveland/ 2 3

  12. Storage Water Heaters | Department of Energy - https://www.energy.gov/energysaver/storage-water-heaters

  13. Water Heating | Green Home Technology Center - https://greenhome.osu.edu/energy-efficiency/water-heating 2

  14. Essential Guide to Water Heater Replacement - https://gaeberly.com/water-heater-replacement/ 2 3 4

  15. Selecting a New Water Heater - Ohio Propane Rebates - https://ohiopropanerebates.com/selecting-a-new-water-heater/ 2

  16. Comprehensive water heater sizing guide in 2024 - Boyle Energy - https://boylebrothersenergy.com/blog/comprehensive-guide-to-water-heater-sizes/

  17. How to Choose the Right Size Water Heater for Champaign Homes - https://lanzinc.com/how-to-choose-the-right-size-water-heater-for-your-home/ 2

  18. How to Pick the Perfect New Water Heater for Your Family's Needs - https://www.serviceoneac.com/blog/2022/october/how-to-pick-the-perfect-new-water-heater-for-you/

  19. Cost to Replace a Water Heater - The Home Depot - https://www.homedepot.com/services/c/cost-install-water-heater/9058c024e

  20. How Much Does Water Heater Installation Cost? | A.O. Smith - https://www.hotwater.com/info-center/water-heater-installation-cost.html

  21. How Much Is a Water Heater Replacement in Cleveland, Ohio? ... - https://www.wilsonplumbingandheating.com/post/how-much-is-a-water-heater-replacement-in-cleveland-ohio

  22. Cost to Replace a 40-Gallon Water Heater in 2025 | Fixr.com - https://www.fixr.com/costs/40-gallon-water-heater

  23. How Much Does It Cost to Install a Gas Water Heater? (2025) - https://www.fixr.com/costs/gas-water-heater

  24. Understanding Installation Costs - Water Heater 101 - https://fastwaterheater.com/blog/water-heater-101-understanding-installation-costs-and-price-factors/