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Top Tankless Water Heater Service Companies in Philadelphia, Pennsylvania Ranked

A tankless water heater provides hot water on demand, eliminating the need for a bulky storage tank and offering significant energy savings over time. For Philadelphia homeowners, upgrading to or maintaining an on-demand system is a smart investment in home efficiency and comfort. This guide explains the key considerations for tankless systems in our city, helping you understand the process, costs, and how to connect with qualified local specialists for your project.

Tankless Industries LLC | Tankless Hot Water Heaters

Tankless Industries LLC | Tankless Hot Water Heaters

314 S Henderson Rd suite 337, King of Prussia, PA 19406

Tankless Industries LLC | Tankless Hot Water Heaters is a plumbing company serving Philadelphia, PA, specializing in tankless water heater installation, repair, and maintenance. They offer services that include flushing and inspecting tankless units to maintain efficiency and safety. The company works with top brands known for reliable tankless water heating technology. They also provide information on state and federal incentives for upgrading to energy-efficient tankless systems.

5.0
220 Reviews
Scarpignato Plumbing & Heating, LLC

Scarpignato Plumbing & Heating, LLC

507 Hastings Ave, Wallingford, PA 19086

Scarpignato Plumbing & Heating, LLC is a family-owned plumbing and heating company serving Philadelphia, PA, and nearby Delaware County communities since 2000. They offer a wide range of services including sewer camera inspections, water heater installation and repair, drain cleaning, hydro jetting, trenchless sewer repair, leak detection, repiping, gas line installation, and general plumbing maintenance. The company uses advanced equipment such as video camera inspection tools and trenchless pipe repair technology to handle complex plumbing issues efficiently. Owner Michael Scarpignato is a licensed master plumber with over 25 years of experience, ensuring expert service and multiple repair options tailored to customer needs. Emergency plumbing services are also available for urgent situations.

5.0
212 Reviews
P&A Plumbing & Drain Cleaning

P&A Plumbing & Drain Cleaning

520 Bloomfield Ave, Drexel Hill, PA 19026

P&A Plumbing & Drain Cleaning is a family-owned plumbing company serving Philadelphia, PA, and surrounding counties including Delaware, Montgomery, and Chester. With over 20 years of experience, their licensed master plumbers provide a wide range of services for residential and commercial clients. They specialize in water heater installation and repair, drain cleaning, sewer line repair, gas line installation, and leak detection. The company uses advanced techniques such as hydro jetting for clearing drains and offers 24/7 emergency plumbing services to address urgent issues promptly.

5.0
202 Reviews
Air Temp Solutions - AC Repair, Heating Repair, Water Heater Repair & Plumbing Devon PA

Air Temp Solutions - AC Repair, Heating Repair, Water Heater Repair & Plumbing Devon PA

philadelphia

Air Temp Solutions - AC Repair, Heating Repair, Water Heater Repair & Plumbing Devon PA provides a wide range of plumbing and HVAC services in Philadelphia, PA. Their offerings include water heater installation and repair, tankless water heater services, water softener installation, sump pump repair, drain cleaning, hydro jetting, sewer line repair including trenchless methods, leak detection, repiping, gas line installation, and toilet repair. They also specialize in advanced sewer services such as video inspections and rooter services to diagnose and clear blockages efficiently. The company serves Philadelphia and nearby areas with comprehensive solutions for both routine maintenance and emergency repairs. Air Temp Solutions combines plumbing expertise with heating and cooling services, handling everything from furnace and boiler repairs to geothermal and mini-split system installations. Their team uses modern technology for leak detection and sewer inspections, and they offer trenchless sewer repairs that minimize property disruption. While the business history is not specified, their service range and technical capabilities reflect a broad skill set in residential plumbing and HVAC systems.

5.0
177 Reviews
Mr. Rooter Plumbing of Glenside

Mr. Rooter Plumbing of Glenside

114 Montgomery Ave, Oreland, PA 19075

Mr. Rooter Plumbing of Glenside provides plumbing services in Philadelphia, PA, including water heater repair and installation, drain cleaning, sewer line repair, leak detection, and gas line installation. They offer hydro jetting to clear tough drain blockages and maintain sewer lines. The company emphasizes clear pricing and workmanship backed by the Neighborly Done Right Promise®. Their licensed and insured plumbers serve residential needs with a focus on thorough inspections and customer communication.

4.9
541 Reviews
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Understanding Tankless Water Heaters

Often called on-demand or instantaneous water heaters, these systems heat water directly as it flows through the unit. Unlike traditional tank models that constantly keep 40-80 gallons of water hot, tankless units activate only when you turn on a hot water tap. This fundamental difference is what leads to their primary benefit: reduced energy consumption, as you're only paying to heat water when you actually need it 1. For Philadelphia rowhomes and larger residences alike, this can translate to noticeable savings on utility bills, especially during our cold winters.

The technology behind these units is straightforward. When a hot water tap is opened, cold water travels through a pipe into the unit. Either a powerful gas burner or an electric heating element instantly warms the water to your preset temperature. Because the heating is immediate and continuous, you can enjoy a steady supply of hot water for as long as the tap is on, without worrying about "running out" as you might with a tank.

Key Considerations for Philadelphia Homes

Installing an on-demand water heater is more complex than a simple like-for-like tank replacement. Several critical factors specific to your Philadelphia home will determine the system's feasibility, performance, and final cost.

Fuel Source: Gas vs. Electric

Your home's existing infrastructure heavily influences this choice.

  • Gas Units (Natural Gas or Propane): These are common in Philly and typically provide a higher flow rate, making them suitable for homes with multiple bathrooms. However, they often require an upgraded gas line to deliver the necessary volume of fuel, which adds to the project cost 1 2. They also require specialized venting to exhaust combustion gases safely.
  • Electric Units: These can be simpler to install in homes without gas service, as they only require electrical and plumbing connections. The major consideration is your home's electrical panel. Most electric tankless models demand a significant amperage draw (often requiring multiple dedicated 240-volt circuits), which may necessitate a costly electrical panel upgrade 1 3.

Proper Sizing is Crucial

Sizing a tankless system isn't about physical dimensions but about matching its output to your home's peak hot water demand. Professionals calculate this based on the Gallons Per Minute (GPM) the unit can produce and the required Temperature Rise (the difference between incoming groundwater temperature and your desired hot water temperature) 2 3. They will assess the number of bathrooms, fixtures, and the likelihood of simultaneous use (e.g., shower and dishwasher running at once). An undersized unit will struggle to keep up, leading to lukewarm water and frustration.

Venting Requirements for Gas Models

This is a major installation component. Gas tankless water heaters produce exhaust that must be vented directly outdoors. They typically use dedicated, sealed venting systems made of stainless steel, categorized as:

  • Power Vent: Uses a fan to push exhaust horizontally through a sidewall.
  • Direct Vent: Pulls combustion air from outside and expels exhaust directly outside, often through a concentric pipe in a wall.

The complexity of routing this venting through your home's structure-especially in tight Philly rowhomes-can significantly impact labor time and cost 1 2.

Plumbing and Potential Upgrades

Your existing water lines and overall plumbing setup will be evaluated. In some cases, modifications are needed to ensure optimal water pressure and flow to the new unit. Furthermore, the installation process itself involves integrating the unit with your home's cold water supply and distributing the newly heated water through your hot water lines.

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Installation Costs in Philadelphia

The price for installing a tankless water heater in Philadelphia varies widely based on the factors above. You can expect a broad range, from $1,600 to over $15,000 for a full, professional installation 1 4 5.

  • Average Reported Range: Many local estimates fall between $1,604 and $3,412, with complex jobs pushing toward the higher end of the spectrum 1 5.
  • Cost Breakdown: The final price includes the unit itself, labor, all necessary materials (piping, venting, fittings), and any required upgrades (gas line, electrical panel). Philadelphia building permits may also add to the cost 1 4.
  • Gas vs. Electric Installation: While electric units can have a lower upfront installation cost if no panel upgrade is needed, gas units often provide better performance for whole-home applications. Installing a gas model typically adds $1,000-$1,500 or more for the venting system and potential gas line work 1 6.

The Importance of Maintenance & Repair

To protect your investment and ensure long-term efficiency, regular maintenance is non-negotiable. Philadelphia's water contains minerals that can accumulate (scale) inside the unit's heat exchanger, reducing efficiency and potentially causing damage.

  • Maintenance Schedule: A professional descaling (flushing) service is recommended every 1 to 2 years7 8. An annual tune-up is also advisable to check electrical connections, gas pressure (for gas units), and all internal components.
  • Benefits of Maintenance: Regular service maintains peak energy efficiency, helps prevent unexpected breakdowns, and can extend the life of your unit to 20 years or more9 8.
  • Repair Costs: When issues arise, repair costs in Philadelphia average around $684, but can range from $320 to over $1,000 depending on the problem, such as a faulty control valve, thermostat, or flow sensor 10 11.

Finding the Right Professional in Philadelphia

Given the technical nature of the installation, choosing a qualified specialist is paramount. Look for a licensed Philadelphia plumber with specific experience in tankless systems. They should conduct a thorough in-home assessment to evaluate your fuel sources, electrical capacity, venting options, and hot water needs before providing a detailed quote. Reputable local companies can guide you through the entire process, from selecting the right model to handling permits and ensuring a code-compliant installation 7 9 12.

Frequently asked questions

Sources

Footnotes

  1. Tankless Water Heater Installation Cost - Complete Guide - https://cycloneplumbingusa.com/tankless-water-heater-installation-cost/ 2 3 4 5 6 7 8

  2. Tankless Water Heater Installation & Replacement In PA - https://signaturehvac.com/plumbing/tankless-water-heaters/ 2 3

  3. Philadelphia | Tankless Water Heater Install | Plumbing - https://hepisontheway.com/philadelphia-tankless-water-heater-install 2

  4. Water Heater Installation Cost in Philadelphia - AirMaster - https://airmasterpa.com/how-much-does-it-cost-to-repair-install-new-water-heater-philadelphia/ 2

  5. Tankless Water Heater Cost in Philadelphia [2026 Data] - https://www.angi.com/articles/how-much-does-tankless-water-heater-cost/pa/philadelphia 2

  6. How Much Does Water Heater Replacement Cost in Philadelphia, PA? - https://www.angi.com/articles/how-much-does-water-heater-installation-cost/pa/philadelphia

  7. Tankless Water Heater Installation Near Greater Philadelphia ... - https://philadelphia.sila.com/plumbing-services/tankless-water-heater-installation/ 2

  8. Tankless Water Heater Installation in Philadelphia, PA - https://generation3electric.com/tankless-water-heaters/ 2

  9. Water Heater Services in Philadelphia. Repair & Installation - https://emcocooling.com/products/water-heaters/ 2

  10. How Much Does Water Heater Repair Cost in Philadelphia, PA? | Angi - https://www.angi.com/articles/how-much-does-it-cost-repair-water-heater/pa/philadelphia

  11. How Much Does It Cost to Repair or Replace a Water Heater In ... - https://www.homeserve.com/en-us/blog/cost-guide/pennsylvania-water-heater-costs

  12. Tankless Water Heater Installation & Repair in Philadelphia, PA - https://www.wmhendersoninc.com/plumbing/tankless-water-heater-installation-repair-services/