![Dark blue monochrome illustration of a grand tropical estate in Naples, Florida](/sites/default/files/2026-09/naples-fl-bg_0.png?alternateWidths=/sites/default/files/styles/canvas_parametrized_width--%7Bwidth%7D/public/2026-09/naples-fl-bg_0.png.avif%3Fitok%3D1FRqFqx8) # Tankless Water Heater Installation We’ve been installing plumbing systems in Southwest Florida since 1985, and our team installs natural gas tankless water heaters for homes, condos, small businesses, and investment properties throughout Fort Myers and the surrounding area. [Request Service ](/contact-us) [Call Us ](tel:2393765945) ## Breadcrumb 1. [Home](/) 2. Tankless Water Heater Installation # Tankless Water Heater Installation in Fort Myers ## Six Decades of Plumbing Experience, Right Here in Southwest Florida We’ve been installing plumbing systems in Southwest Florida since 1985, and our team installs natural gas tankless water heaters for homes, condos, small businesses, and investment properties throughout Fort Myers and the surrounding area. Scott Stein has held a Master plumber license since 1992 and has owned [Paul Stein Plumbing](/about-us) since 1993. Fort Myers properties come with specific demands that shape every tankless installation we do: hard water from the local limestone aquifer, a large base of seasonal and investor-owned properties, and construction that spans several decades. We know this market. Same-day service is available, and we respond to emergencies around the clock. **Ready to upgrade to on-demand hot water? Call Paul Stein Plumbing at [(239) 376-5945](tel:2393765945) to [schedule your tankless water heater installation](/contact-us) in Fort Myers.** ## Why Fort Myers Homeowners Are Switching to Tankless Natural gas tankless water heaters heat water on demand rather than keeping a stored tank hot around the clock, which can cut standby energy loss and can translate to savings on utility bills over time. We can help you take advantage of that efficiency with the right system for your home. The practical benefits go beyond energy costs: - **Longer service life:** With proper maintenance, tankless units can last up to 20 years, roughly double the lifespan of a [traditional tank water heater](/residential-plumbing/water-heater-repair) - **Space savings:** Tankless units mount on a wall and free up the floor space a tank unit previously occupied - **Higher flow rates:** Gas tankless systems can handle simultaneous demand across multiple fixtures better than electric models, making them a natural fit for larger homes - **Better compatibility with water treatment:** Pairing a tankless system with appropriate water softening can help offset the scale buildup that shortens equipment life in this area ## Why Choose Paul Stein Plumbing for Your Installation Over 60 years in the trade and more than three decades serving Southwest Florida mean our team has worked on virtually every construction era and property type in this region. We use name-brand plumbing products from manufacturers you’ll recognize, and every installation is handled by licensed, trained plumbers. One capability that sets us apart in this market: we work directly with tenants, rental agents, property managers, and realtors. If you own a Fort Myers property but aren’t on-site, we coordinate with whoever is there to get the work done. For larger projects, financing is available through Synchrony. ## What the Installation Process Looks Like Every tankless water heater installation starts with an assessment of the property’s hot water demand, the existing gas supply, and the venting configuration. Proper sizing matters: a unit matched to the home’s peak simultaneous demand can deliver consistent pressure without shortfalls. Natural gas installations typically involve venting work and may require gas line modification depending on what’s already in place. We pull the required permit for the applicable jurisdiction, whether that’s the City of Fort Myers or unincorporated Lee County, and handle the required inspection coordination. If your installation is part of a broader renovation, our remodeling experience means we can fit the work into a larger project scope without complications. A natural gas tankless water heater is a long-term investment, and it should be installed right the first time. Our licensed team serves Fort Myers and the broader Southwest Florida area with the local knowledge and hands-on experience to back up every job we take on. **Call Paul Stein Plumbing at [(239) 376-5945](tel:2393765945) or reach us through our [online contact form](/contact-us) to get started. We’re available same-day and around the clock for urgent needs.** ## How Natural Gas Tankless Water Heaters Work A natural gas tankless unit heats water by passing it through a heat exchanger fired by a gas burner. The burner activates only when a hot water tap opens and shuts off when the tap closes. There’s no stored water to keep hot, which is where the efficiency gain comes from. Gas systems consistently outperform electric tankless models on flow rate, which matters in homes running a shower, dishwasher, and laundry at the same time. Switching from a tank unit to a gas tankless system may require upgrading the [gas supply line](/residential-plumbing/gas-line-plumbing) or adding dedicated venting. We assess those requirements before installation begins so there are no surprises. Natural gas tankless units use either a direct-vent or power-vent configuration. The right choice depends on the home’s layout and where exterior wall access is available. ## Hard Water in Southwest Florida & Your Tankless System Fort Myers area municipal water draws from limestone aquifers and arrives at the tap naturally high in calcium and magnesium. That mineral load causes scale to accumulate inside a tankless unit’s heat exchanger, reducing efficiency and triggering flow sensors over time. Left unaddressed, scale buildup can shorten the system’s service life significantly. Annual descaling, which means flushing the heat exchanger with a descaling solution, is the standard maintenance task for tankless systems in hard-water markets. Coastal conditions here can also accelerate external corrosion on exposed components. Paul Stein Plumbing has been navigating Southwest Florida’s specific water conditions since 1985, and we also offer [whole-home water softening services](/residential-plumbing/water-treatment) that can reduce mineral content before water reaches the tankless unit, decreasing the rate of scale accumulation between service intervals. ## Permitting for Tankless Water Heater Installation in Fort Myers A plumbing permit is typically required when installing or replacing a water heater in Florida. Properties within the City of Fort Myers limits fall under City of Fort Myers permitting authority; properties in unincorporated areas fall under the Lee County Department of Community Development. Many properties with a Fort Myers mailing address are actually located in unincorporated Lee County, and a licensed contractor can confirm which jurisdiction applies before work begins. Lee County enforces the 2023 Florida Building Code, 8th Edition, and permitted installations must meet those standards and pass inspection. Installing a natural gas tankless system without a permit can create complications at the time of a property sale or insurance claim. When Paul Stein Plumbing pulls the permit as the licensed contractor, we take on responsibility for ensuring the installation meets all applicable code requirements, not the property owner. [ ![Pink piggy bank beside clipboard and calculator, with outdoor AC unit and people on patio](/sites/default/files/2026-06/financing-bg-image.png?alternateWidths=/sites/default/files/styles/canvas_parametrized_width--%7Bwidth%7D/public/2026-06/financing-bg-image.png.avif%3Fitok%3DJ2ErpVIW) ### Financing Available Comfort Now, Pay Later ](/financing) #### Request an Appointment Get in touch with Paul Stein Plumbing if you need service at your home or business. Same-day service and 24/7 emergency response across Collier County. [Let's Get Started! ](/contact-us) #### Our Services --- - [Plumbing](/residential-plumbing) - [Bathroom Plumbing](/residential-plumbing/bathroom-plumbing) - [Kitchen Plumbing](/residential-plumbing/kitchen-plumbing) - [Fixture Services](/residential-plumbing/fixture-services) - [Shower Services](/residential-plumbing/shower-services) - [Garbage Disposals](/residential-plumbing/garbage-disposals) - [Gas Line Plumbing](/residential-plumbing/gas-line-plumbing) - [Leak Detection & Repair](/residential-plumbing/leak-detection-repair) - [Slab Leaks](/residential-plumbing/slab-leaks) - [Piping & Repiping](/residential-plumbing/piping-repiping) - [Water Line Services](/residential-plumbing/water-line-services) - [Water Heater Repair](/residential-plumbing/water-heater-repair) - [Water Heater Installation](/residential-plumbing/water-heater-installation) - [Tankless Water Heater Repair](/residential-plumbing/tankless-water-heater-repair) - [Tankless Water Heater Installation](/residential-plumbing/tankless-water-heater-installation) - [Water Treatment](/residential-plumbing/water-treatment) - [Plumbing Maintenance](/residential-plumbing/plumbing-maintenance) - [Sewer & Drain](/sewer-and-drain) - [Drain Cleaning](/sewer-and-drain/drain-cleaning) - [Hydro Jetting](/sewer-and-drain/drain-cleaning/hydro-jetting) - [Sump Pump Services](/sewer-and-drain/sump-pump-services) - [HVAC](/hvac) - [Air Conditioning](/air-conditioning) - [AC Repair](/air-conditioning/ac-repair) - [AC Installation & Replacement](/air-conditioning/ac-installation) - [AC Maintenance & Tune-Ups](/air-conditioning/ac-maintenance) - [Emergency AC Repair](/air-conditioning/emergency-ac-repair) - [Ductless Mini-Split Systems](/air-conditioning/ductless-mini-splits) - [Indoor Air Quality](/air-conditioning/indoor-air-quality) - [Heating](/heating) - [Heating Repair](/heating/heating-repair) - [Heating Installation & Replacement](/heating/heating-installation) - [Heat Pump Services](/heating/heat-pumps) - [Heating Maintenance](/heating/heating-maintenance) - [Commercial](/commercial-plumbing) - [Emergency Plumbing Services](/commercial-plumbing/emergency-plumbing-services) - [About](/about-us) - [Contact Us](/contact-us) - [Areas We Serve](/service-areas) - [Careers](/about-us/careers) - [Reviews](/reviews) - [Financing](/financing) - [Coupons](/coupons) ## Our Customers Say It Best *See why homeowners trust us with their comfort.* ### Customer reviews Previous Next ### [ “I will call Paul Stein for all of our plumbing needs.” ](/) Lori L. --- “They responded quickly and came out within 2 days. The pro discussed options, fixed issues, and diligently and efficiently dealt with some challenges of our 45 year old home.” ### [ “I would recommend their service to anyone.” ](/) Elaine M. --- “Paul Stein Plumbing did an outstanding job repairing a leak in our master bathroom toilet. They were on time, identified the problem quickly and did the repair. Their service person was polite and professional.” ### [ “Ryan did an excellent job on the installation.” ](/) Judy C. --- “Ryan was very efficient. He told me the options in types of faucets and he let the decision up to me. I am very satisfied with my choice.” [See all reviews ](/reviews) Local Service Areas #### Proudly Serving Marco Island, Naples & Collier County Paul Stein Plumbing is proud to serve Marco Island, Naples, Bonita Springs, Estero, Golden Gate, Goodland, Isles of Capri and the greater Collier County area. If you don’t see your community listed, contact us to see if we can still help! - [Marco Island](/reviews) - [Naples](/area-we-serve/30a) - [Bonita Springs](/area-we-serve/alys-beach) - [Estero](/area-we-serve/blue-mountain-beach) [Request Service ](/contact-us)