Water Heater Installation in Southern Maine | Southern Maine Mechanical
24/7 Emergency — Call (207) 560-7890
5-Star Rated · Greater Portland, ME

Water Heater Installation in Southern Maine — Reliable Hot Water

From a leaking tank to an upgrade to high-efficiency tankless, Southern Maine Mechanical installs and replaces water heaters across greater Portland and southern Maine. We help you choose the right type and size for your household, install it correctly, and back the work with solid warranties.

Licensed & Insured in Maine
24/7 Emergency Available
Efficiency Maine Qualified Partner
EPA Certified
Licensed Gas & Oil
5-Star Google Rated
Free Estimates on Installs

Tank, Tankless & Indirect Water Heaters

We install every common water heater type: conventional gas, propane, and electric tank units; high-efficiency tankless (on-demand) systems; and indirect water heaters that run off your boiler for efficient, abundant hot water. We'll help you weigh up-front cost, efficiency, and capacity to pick the best fit for your home.

Right-Sized for Your Household

A water heater that's too small leaves you with cold showers; one that's too large wastes energy. We size your system to your household's real hot-water demand — number of bathrooms, fixtures, and peak usage — so you get consistent hot water without overspending on equipment or energy.

Fast, Clean Replacement

A failed or leaking water heater needs prompt attention to avoid water damage. We schedule replacements quickly, haul away your old unit, and install the new one cleanly and to code — including proper venting, expansion tanks, and shut-offs where required.

Permits, Code & Warranty

We pull required permits and install to code, verifying safe combustion and venting on gas and propane units. Every water heater installation includes manufacturer warranties plus our labor warranty, and we register the equipment for you.

Ready to Get Started?

Free estimates on all installations. Same-day service available.

(207) 560-7890 Free Estimates
No surprise pricing
Licensed & insured
Locally owned
24/7 emergency service

Get It Done Now, Pay Later

Financing Available for HVAC Installations

Southern Maine Mechanical offers flexible financing options for qualified customers on heat pump installations, boiler replacements, furnace replacements, central air systems, and other HVAC projects.

Promotional Financing

  • 0% interest if paid in full within 6, 12, or 18 months
  • Deferred interest may apply if the balance is not paid in full by the end of the promotional period

Fixed Monthly Payment Plans

  • Reduced APR options may be available
  • Common terms may include 60-month financing
  • Great for larger heat pump, boiler, furnace, and central air installations

Example Monthly Payments

  • $8,500 system~$142/mofor 60 months
  • $12,000 system~$200/mofor 60 months
  • $20,000 system~$333/mofor 60 months

Financing is subject to credit approval. Terms, rates, promotional periods, and monthly payments may vary. Promotional financing may include deferred interest. Southern Maine Mechanical does not guarantee approval or specific loan terms.

Signs It's Time to Replace Your Water Heater

Water heater is more than 10–12 years old
Rust-colored or metallic-tasting hot water
Running out of hot water faster than before
Water pooling or leaking around the tank
Popping or rumbling sounds from the tank
Rising energy bills from an inefficient unit
Frequent repairs on an aging heater
Wanting endless hot water with a tankless upgrade

Frequently Asked Questions

HVAC Emergency? We Answer 24/7.
Talk directly to a technician — not an answering service.
(207) 560-7890