
Tankless Water Heater Installation
Endless hot water on demand, dramatically lower energy bills, and a unit that lasts twice as long as a tank — tankless water heater installation done right.
Tankless Water Heater Installation
A tankless (or on-demand) water heater heats water only when you need it — there's no storage tank to maintain at temperature 24 hours a day. When you open a hot water tap, cold water flows through the unit, a gas burner or electric element fires, and hot water is delivered continuously until you shut the tap. There's no "running out" of hot water.
The efficiency advantage is significant: traditional tank water heaters lose heat through the tank walls constantly (called standby losses), even when no hot water is being used. A tankless unit has no standby losses. Gas tankless units are typically 24–34% more efficient than comparable gas tanks; electric units can be even more efficient depending on your utility rates.
Tankless units are also compact — most wall-mount gas models are roughly the size of a small suitcase, compared to a 50-gallon tank. They're rated for 20+ years of service life with proper maintenance, compared to 8–12 years for tank units.

Signs You May Need Tankless Water Heater Installation
Common indicators our Hudson Valley customers recognize before they call us.
You Run Out of Hot Water Regularly
If your household frequently exhausts the hot water tank — especially with multiple showers back to back — a tankless unit delivers continuous hot water without limits.
Your Water Heater Is Nearing End of Life
When your tank is 8–12 years old and due for replacement, it's the ideal time to upgrade to tankless rather than replace like-for-like. The long-term savings justify the additional upfront cost.
You Want Lower Energy Bills
A tankless water heater eliminates standby heat loss — the energy wasted keeping a tank hot 24 hours a day. Gas tankless units are 24–34% more efficient than tank alternatives.
You're Remodeling or Adding Space
A remodel is the right time to reconsider your water heating approach. Tankless units are wall-mounted and take a fraction of the space, freeing up your mechanical room or utility closet.
You Have Hard Water Issues
Hard water accelerates sediment buildup in tank heaters and scale buildup in tankless heat exchangers. Annual descaling on a tankless unit is easier and less damaging than sediment in a tank.
You Want a 20-Year Water Heater
Tank water heaters last 8–12 years. Properly maintained tankless units routinely last 20–25 years — making them a more cost-effective long-term investment despite the higher upfront price.
Our Tankless Water Heater Installation Process
A straightforward process from start to finish — no surprises, no hidden fees.
Load Assessment
We determine your household's peak hot water demand — number of simultaneous fixtures, flow rates, and incoming water temperature.
Unit Selection
We specify a properly sized unit in gas or electric based on your fuel source, budget, and demand profile.
Installation
Unit mounted, gas or electric supply connected, venting installed (for gas), and all connections made to code.
Testing & Walkthrough
We verify correct operation, set the temperature, and show you the maintenance requirements for your new unit.
Our Tankless Water Heater Installation Services
Everything covered under our tankless water heater installation offering for Hudson Valley homeowners.
Endless On-Demand Hot Water
No storage tank means no running out. Hot water is produced on demand as long as you need it — ideal for larger families or high-demand households.
Lower Energy Bills
No standby heat loss. Gas tankless units are 24–34% more efficient than tank units of comparable capacity. Savings accumulate over the 20+ year lifespan.
Gas & Electric Models
We install both natural gas/propane tankless units and electric models. Gas units deliver higher flow rates; electric units are simpler to install in some locations.
Space-Saving Wall-Mount Design
Most tankless units mount on the wall and take a fraction of the floor space of a traditional tank — freeing up mechanical room or basement space.
20+ Year Service Life
With annual descaling maintenance, tankless units routinely last 20–25 years — roughly twice the lifespan of a traditional tank water heater.
Whole-House & Point-of-Use Options
Whole-house units handle all fixtures simultaneously. Point-of-use mini tankless units can supplement a single fixture for reduced wait time.
Hudson Valley's Most Trusted Tankless Water Heater Installation Team
With over 12 years of experience and 330+ five-star reviews, TZ Electric is the Hudson Valley's go-to team for tankless water heater installation. Every job includes upfront pricing, professional licensed technicians, and our full satisfaction guarantee.
- Mitsubishi Diamond Elite Contractor
- Generac Authorized Dealer
- BBB Accredited Business
- Voted Best Electrician in the Hudson Valley
- Wisetack & Synchrony Financing Available
- Upfront Pricing — No Hidden Fees
Tankless Water Heater Installation — Common Questions
Answers to the questions we hear most from Hudson Valley homeowners.
Is a tankless water heater worth the cost?
Can a tankless water heater handle my whole house?
Does my gas line need to be upgraded for a tankless unit?
Do tankless water heaters require maintenance?
Ready for Reliable Home Services?
Get a free, no-obligation quote from our expert team. We'll assess your needs and provide an upfront price. No surprises, no hidden fees.
Wisetack & Synchrony financing available. 24/7 emergency service.