Tankless Water HeaterS

A water heater is installed in a bathroom next to a sink.

Tankless Water Heater Services in the Bay Area

Mammoth Plumbing provides expert tankless water heater services throughout San Francisco and the Bay Area. Our specialized technicians deliver professional installation, maintenance, and repair for these advanced water heating systems, helping homeowners enjoy endless hot water while reducing energy costs. We guide you through selecting the perfect unit based on your household's specific demands, ensuring optimal performance for your property. From compact San Francisco apartments to spacious Hillsborough estates, our team designs and implements tankless solutions tailored to your unique hot water needs in Brisbane, Daly City, Broadmoor, San Bruno, Millbrae, Burlingame, San Mateo, and throughout the peninsula.

Types of Tankless Water Heater Services

We offer comprehensive plumbing services designed to address all your needs with expert precision and care. Each service is performed by our highly trained technicians, who arrive equipped with advanced tools and extensive knowledge.

A white water heater is mounted on the side of a house.

Tankless System Installation

We provide complete tankless water heater installation, correctly sizing units based on your household's needs and usage patterns. Our installations include necessary gas line upgrades, proper venting, and professional electrical work for homes throughout San Francisco, Hillsborough, and San Bruno, ensuring your system meets all building codes while delivering maximum performance.

A white water heater with copper pipes attached to it

Tankless Maintenance & Repair

Our technicians perform essential descaling services to remove mineral buildup, extending system life and maintaining efficiency for Daly City and Brisbane homeowners. We quickly diagnose and repair ignition failures, flow sensor problems, and error codes for all major brands, with genuine parts in stock for Millbrae and Burlingame service calls.

A water heater is mounted to a wall in a garage

Tankless System Upgrades

We enhance existing tankless systems with performance-improving add-ons like recirculation pumps that eliminate wait times, temperature controllers for precise adjustment, and water softening pre-treatment that prevents scale buildup, maximizing your investment throughout San Mateo and Broadmoor.

Benefits of Tankless Water Heaters

Upgrading to a tankless system provides substantial advantages over traditional tank-style water heaters:



01

Endless Hot Water: Eliminates the frustration of depleted hot water during showers or simultaneous usage, providing continuous hot water for San Francisco and Daly City families regardless of demand or timing.


02

Energy Efficiency: Reduces utility costs by heating water only when needed rather than maintaining a large tank of hot water continuously, saving 20-30% on water heating bills for homeowners throughout Brisbane and San Bruno.


03

Space Savings: Compact wall-mounted design frees up valuable floor space in smaller Millbrae and Burlingame homes, creating additional storage opportunities in utility rooms, garages, or closets.


04

Extended Lifespan: Offers significantly longer service life (20+ years versus 10-12 for tank models) with replaceable parts, providing Broadmoor and San Mateo homeowners with better long-term value despite higher initial costs.


Tankless technology represents a smart investment in comfort, efficiency, and sustainable home improvement.

A white water heater is sitting on a wall next to copper pipes.