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24/7 Certified Plumbing Services in Milton & Mississauga – Delex Plumbing

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Tankless Water Heater Services in Mississauga

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Or Give Us A Call: 416-910-2550

Upgrade to a Tankless Water Heater in Mississauga

Traditional water heaters constantly store and heat water, wasting energy even when hot water isn’t being used. Tankless water heaters, on the other hand, work on demand, heating water only when needed. This technology not only saves energy but also improves comfort and convenience for households and businesses.

By upgrading to a tankless system, you can get unlimited hot water for showers, laundry, and dishes, without ever running out mid-use. The compact design adds valuable space in your utility room. With proper maintenance, a quality unit can last up to 20 years or more—double the span of traditional tanks. With expert installation from Delex Plumbing, you’ll enjoy an energy-efficient system that delivers exceptional performance for years to come.

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Our Tankless Water Heater Services

At Delex Plumbing, we offer a complete range of tankless water heater services tailored to fulfill the needs of every home and business. From selecting the right unit to ensuring complete setup and long-term maintenance, we handle every detail with precision and care.
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Installation (New & Replacement)

Our installation services cover both new system setups and replacements for outdated or inefficient units. We help you choose the right size and model based on your household needs, water usage, and budget. Our technicians handle everything, including gas and water connections, venting, and safety checks, while ensuring your installation complies with Ontario Building Codes and manufacturer standards.
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Repairs & Maintenance

Even high-quality tankless systems require occasional service. If you’re experiencing inconsistent water temperatures, ignition problems, or system error codes, our experts provide fast and accurate repairs. We also offer routine maintenance services, including annual flushing, descaling, and filter cleaning, to extend the life of your unit and ensure reliable performance.
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System Upgrades

If your current system isn’t meeting your household’s hot water demands, we offer customized upgrade solutions. Our team can recommend high-efficiency models featuring smart controls, improved flow rates, and advanced heating technology, helping you maximize the value of your investment.
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Gas Line & Venting Setup

Safe installation is a top priority. We ensure your gas line is properly sized and your venting system is configured for safe exhaust removal, preventing hazardous situations and ensuring optimal performance.
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Manufacturer Warranty Support

Many tankless water heaters include extended warranties, but they often require certified installation and regular maintenance. With Delex Plumbing, you get both—keeping your warranty intact and your system fully protected.
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Get Professional Plumbing Without the Stress!

Why Choose Delex Plumbing for Tankless Water Heaters

Choosing the right plumbing company is just as important as choosing the right water heater. At Delex Plumbing, we combine expertise, reliability, and transparency to deliver results you can trust.

Our technicians are licensed and certified to work on all major brands, including Navien, Rinnai, Bosch, and Noritz. We pride ourselves on clean, professional artistry, and we provide upfront pricing with no hidden costs. To help you maintain your system, we also offer customized maintenance plans designed to optimize performance and extend the lifespan.

Whether it’s a new installation, an urgent repair, or a system upgrade, our goal is to deliver long-lasting comfort and efficiency for your home or business.

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Ideal for Residential & Light Commercial Use

Tankless water heaters are versatile and perfect for both homes and small businesses. They’re designed to deliver efficient, reliable performance across a variety of settings.
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Single-Family Homes

For families with multiple bathrooms or high water usage, tankless systems are an excellent solution. With the right-sized unit, you can run the shower, dishwasher, and laundry machine simultaneously—without worrying about running out of hot water.
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Multi-Unit Dwellings

From duplexes to apartment-style homes, we install systems that perfectly suit shared spaces. Depending on your needs, we can install individual units per unit or design a centralized system for the entire property.
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Offices & Small Businesses

Businesses like cafés, salons, medical clinics, and offices also benefit from tankless systems. These compact, efficient units conserve space while providing a continuous hot water supply for daily operations, eliminating costly energy waste.

Book Tankless Water Heater Service in Mississauga

Whether you’re upgrading from a traditional tank or need service on your existing system, Delex Plumbing is Mississauga’s go-to expert for tankless water heater installations, repairs, and maintenance.

We offer next-day installations, same-day repairs, and complimentary consultations to simplify and stress-free the process. Call us today to schedule your appointment or book online for fast service.

Delex Plumbing — Bringing endless hot water to homes and businesses across Mississauga.

Mississauga Neighbourhoods We Serve

We proudly serve all neighbourhoods across Mississauga, including:
Our knowledge of each area—from the infrastructure challenges in older neighbourhoods to the plumbing features of new builds—enables us to provide faster and more effective service tailored to your specific needs.

Get Your Free Estimate Today!

Or Give Us A Call: 416-910-2550

Additional Plumbing Services We Provide

We offer an extensive selection of plumbing services, ensuring efficient, affordable, and long-lasting results for any project.
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