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Top Tankless Water Heater Service Companies in Irving, Texas Ranked
Upgrading to a tankless water heater in Irving can provide endless hot water and greater energy efficiency for your home. However, the installation of these on-demand systems is a complex project that requires careful planning and professional expertise to ensure safety, compliance with Texas codes, and optimal performance. This guide will help you understand the key considerations, costs, and maintenance needs for tankless water heaters in the Irving area, empowering you to make informed decisions when selecting a local specialist for your installation or repair.

Trident Plumbing
15222 King Rd Ste 301, Frisco, TX 75034
Trident Plumbing provides a range of plumbing services in Garland, TX, including water heater repair and installation, tankless water heater services, water softener installation, drain cleaning, sewer line repair, leak detection, and gas line installation. Their team includes Master Plumbers, licensed Journeymen, and Technicians who receive ongoing professional education. Trident Plumbing also offers specialized slab leak detection and repair, supporting both residential and commercial plumbing needs.

Bow Tie Plumbing
1285 N Main St Suite 306, Mansfield, TX 76063
Bow Tie Plumbing is a family-owned plumbing company serving Arlington, TX, and the broader DFW area. With over 50 years of combined experience, they offer a wide range of services including water heater installation and repair, drain cleaning, sewer line repair, leak detection, repiping, and toilet repair. The company uses advanced techniques such as hydrostatic and smoke testing to identify plumbing issues and provides specialized services like tunneling for foundation access. Bow Tie Plumbing is known for transparent pricing, free estimates within 24 hours, and a 1-year labor warranty on their work.

O'Bryan Plumbing Services
800 Fulgham Rd Suite 35, Plano, TX 75093
O'Bryan Plumbing Services is a plumbing company serving Dallas, TX, offering a wide range of plumbing solutions including water heater repair and installation, sewer and drain cleaning, leak detection, and gas line installation. They use advanced technology such as sewer camera inspections to accurately diagnose and address plumbing issues. Established in 1982, O'Bryan Plumbing Services brings decades of experience to their work, providing comprehensive plumbing maintenance and repair services to residential customers.

DFW PipePros
1350 E Arapaho Rd Suite 130, Richardson, TX 75081
DFW PipePros is a locally owned plumbing company serving Dallas, TX. They provide a wide range of plumbing services including water heater repair and installation, tankless water heater services, drain cleaning, hydro jetting, leak detection, toilet repair, and garbage disposal repair. The company uses advanced techniques such as sewer camera inspections to accurately diagnose plumbing issues. DFW PipePros emphasizes transparent pricing and offers 24/7 emergency service to address urgent plumbing needs promptly.

Adr plumbing Co
plano
Adr Plumbing Co is a plumbing service provider based in Plano, TX, offering a wide range of services including water heater repair and installation, tankless water heater services, drain cleaning, sewer line repair, leak detection, repiping, toilet repair, and garbage disposal repair. They serve residential and property management clients with expertise in trenchless sewer repair and tunneling for under-slab repairs. Established in 2019, Adr Plumbing Co combines over 20 years of industry experience with well-stocked service vehicles to efficiently handle plumbing issues from minor leaks to major sewer line replacements. The company operates around the clock to address plumbing emergencies and routine maintenance needs.
Understanding Tankless Water Heaters
Unlike traditional storage tank models that constantly heat and reheat a large volume of water, tankless (or on-demand) water heaters heat water directly as it flows through the unit. This means you get a continuous supply of hot water, and you only pay to heat the water you actually use, which can lead to significant energy savings over time. For Irving homeowners, this technology is particularly appealing given our fluctuating temperatures and the desire for modern, efficient home systems. The two primary types are gas-powered (natural gas or propane) and electric models, each with distinct installation requirements that impact the overall project scope and cost.
Critical Pre-Installation Considerations
Before you purchase a unit, several technical factors must be evaluated by a licensed professional. Getting these details wrong can lead to poor performance, safety hazards, or failed inspections.
Proper Sizing is Paramount
Sizing a tankless system isn't about physical dimensions but about meeting your home's simultaneous hot water demand. A professional will calculate the required flow rate in gallons per minute (GPM) and the necessary temperature rise based on your groundwater temperature and the number of fixtures you expect to run at once 1 2. An undersized unit will leave you with lukewarm water when multiple showers or appliances are in use.
Power Source: Gas vs. Electric
Your choice between gas and electric will dictate much of the installation complexity.
- Gas Tankless Heaters: These are common and powerful but require an adequate gas supply. Your existing gas line may be too small and need to be upsized, which involves running new pipe 1 3. They also require dedicated, sealed venting-often stainless steel or special PVC-to exhaust combustion gases directly outside. This is not a standard chimney flue and may require new roof or wall penetrations 2 4 5.
- Electric Tankless Heaters: These are simpler to vent but demand a substantial electrical load. Most homes require a significant upgrade to their electrical panel and the installation of new, high-amperage circuit breakers and wiring, which can add thousands to the project cost 1 3.
Venting and Exhaust Requirements
All gas-fired tankless units need a specific venting system designed for high-efficiency, condensing appliances. The vent material and routing are critical for safety and efficiency and must comply with manufacturer specifications and local Irving codes 2 4.
Plumbing and Condensate Drain
The plumbing connections may need to be reconfigured for optimal flow. Additionally, high-efficiency condensing gas models produce acidic condensate that must be neutralized and drained away via a dedicated condensate drain line, adding another layer to the plumbing work 4 5.
Permits and Professional Licensing
In Texas, a permit is legally required for water heater installation or replacement. This ensures the work is inspected for safety and code compliance. Only a licensed plumber should perform this work, as improper installation can void warranties and create serious risks like gas leaks or carbon monoxide poisoning 1 2 6.
Cost Breakdown for Irving Installations
The total investment for a tankless water heater in Irving is highly variable, with a typical range from $1,800 to over $12,000 1 3 7. The wide range is due to the necessary supporting upgrades, not just the appliance itself.
- Unit-Only Cost: The tankless heater itself typically ranges from $1,852 to $4,368 7.
- Major Cost Drivers (Labor & Upgrades): The bulk of the expense comes from professional labor and essential upgrades:
- Gas Line Upsizing: Running a new, larger gas line from the meter.
- Electrical Panel Upgrade: Adding capacity for an electric model.
- New Venting System: Installing specialized vent pipes through the roof or wall.
- Complex Plumbing/Labor: The time and skill required for proper integration.
- Permits & Inspections: Fees for the required city approvals.
A full gas tankless installation, including necessary gas and venting upgrades, often falls in the $6,000 to $12,000+ range 1 3. It's crucial to get detailed quotes that itemize the unit, labor, and all potential upgrade costs.
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Ongoing Maintenance and Common Repairs
To protect your investment and ensure longevity, regular maintenance is non-negotiable for tankless systems, especially given the hard water common in North Texas.
- Annual Flushing: This is the most critical maintenance task. A chemical flush removes mineral scale (limescale) buildup from the internal heat exchanger, which is the core of the unit. Neglecting this can drastically reduce efficiency, cause overheating, and lead to premature failure 1 2 8.
- Annual Professional Inspection: A licensed technician should annually check the system for proper gas pressure, secure electrical connections, integrity of the venting system, and any error codes. This proactive check can catch small issues before they become expensive repairs 1 6.
- Common Repair Signs: Be aware of symptoms that indicate your tankless unit needs service:
- Inconsistent Water Temperatures: Fluctuating between hot and cold.
- Low Water Pressure from hot water fixtures.
- Frequent System Shutdowns or error codes.
- Visible Leaks from the unit.
- A Significant Increase in Energy Bills.
- Repair vs. Replacement: Repair costs can vary widely. If you're facing frequent breakdowns and the repair bills are mounting, or if the unit is old and a key component like the heat exchanger fails, replacement is often the more economical long-term choice 8 6.
Choosing a Qualified Professional in Irving
Given the complexity, selecting the right installer is as important as selecting the right unit. Look for a licensed, insured, and bonded plumbing company with specific, proven experience installing tankless water heaters in the Irving area. They should be familiar with local amendments to the plumbing code (like the required 18-inch elevation for gas appliances in garages) 1. Seek out companies with strong local reputations, such as CR Plumbing, Palomino Plumbing, or Knee Deep Plumbing, and always obtain multiple detailed written quotes 1 8 6. A reputable pro will insist on a site evaluation, discuss sizing, explain all required permits, and provide a clear breakdown of all costs before any work begins.
Frequently asked questions
Sources
Footnotes
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True Cost to Install a Tankless Water Heater in Dallas - Mother - https://www.callmother.com/blogs/true-cost-to-install-a-tankless-water-heater-in-dallas ↩ ↩2 ↩3 ↩4 ↩5 ↩6 ↩7 ↩8 ↩9 ↩10
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Water Heater Installation DFW: Safety, Costs & Expert Guide - https://www.crplumbingdfw.com/water-heater-installation-dfw-safety-costs-expert-guide/ ↩ ↩2 ↩3 ↩4 ↩5
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Cost To Install a Tankless Water Heater in Texas - Jon Wayne - https://jonwayne.com/blog/cost-tankless-water-heater-tx/ ↩ ↩2 ↩3 ↩4
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Tankless Water Heater Service | Professional Plumbers Dallas - https://legacyplumbing.net/services/water-heaters/tankless/ ↩ ↩2 ↩3
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Tankless Water Heater Repair and Installation In Dallas - https://rodgersplumbing.com/tankless-water-heaters-dallas/ ↩ ↩2
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Tankless Water Heater Installation - Palomino Plumbing - https://www.callpalomino.com/services/water-heaters/tankless-water-heater-installation ↩ ↩2 ↩3 ↩4
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Water Heater Cost in DFW (2026 Report) - https://www.cowtownwaterheaters.com/water-heater-cost-dfw/ ↩ ↩2
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Expert Tankless Water Heater Installation in North Texas - https://kneedeepplumbingtx.com/tankless-water-heaters/ ↩ ↩2 ↩3