Water Heater Services in Greater Boise
Need hot water now? We repair, replace, and install water heaters today. Diamond Heating and Cooling is a local, family-owned team serving the Greater Boise area, including Boise, Meridian, and Nampa. Our licensed, bonded, and insured plumbers deliver clear pricing and respectful service. Trusted since 1999 with a 4.9 rating from 5,811 reviews and BBB Torch Awards for Ethics. Call or schedule online for fast help and honest options that fit your home and budget.

Each image is a real worksite photo, reflecting the quality and dedication in every project.
Why Choose Us
What Our Customers Say
"Very happy with the new tankless water heater... Diamond will stand behind their work!"
"Diamonds installers were terrific and they know their stuff. Couldn't be happier."
"Water heater went way bad. After arriving same day they had me up in two hours."
Answers to Common Questions
View All FAQsWhy Is My Water Heater Not Heating Up Despite Resetting the Button?
Pressing the reset won’t restore heat if the root problem remains. Common causes include a failed thermostat or heating element (electric tanks), ignition or gas-supply issues (gas units), sediment buildup insulating the heat source, or tankless faults like a stuck flow sensor, venting error, or control error code. We provide diagnostics, descaling/flushes, thermostat/heating-element fixes, and tankless troubleshooting across Boise and Meridian.
Quick checks:
- Verify the breaker/gas shutoff is on.
- Note any error codes.
- Ensure water valves are open.
- Listen for burner/element operation.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUNEbHNTcjV3RRAB!2m1!1s0x0:0x57b92cf7c5763dab!3m1!1s2@1:CIHM0ogKEICAgICDlsSr5wE%7CCgsI5KOSsAYQ0LrWJA%7C?hl=en-US[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUNoaXJfQXZ3RRAB!2m1!1s0x0:0x57b92cf7c5763dab!3m1!1s2@1:CIHM0ogKEICAgIChir_AvwE%7CCgwI0qOWnwYQyOm40wM%7C?hl=en-US[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUN4aS1Icl93RRAB!2m1!1s0x0:0x57b92cf7c5763dab!3m1!1s2@1:CIHM0ogKEICAgICxi-Hr_wE%7CCgwI--6_owYQ2PihuAM%7C?hl=en-US[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSURIeUxESldnEAE!2m1!1s0x0:0x57b92cf7c5763dab!3m1!1s2@1:CIHM0ogKEICAgIDHyLDJWg%7CCgwIhfOHtwYQkMOT5wE%7C?hl=en-US[4] https://www.diamondheatingandcooling.com/about-us/maintenance-plans/[5] https://www.diamondheatingandcooling.com/heating/emergency-heating-services/[6] https://www.diamondheatingandcooling.com/air-conditioning/ac-maintenance/[7] https://www.diamondheatingandcooling.com/hvac/hvac-repair/[8] https://www.diamondheatingandcooling.com/site-map/[9] https://www.diamondheatingandcooling.com/plumbing/[10] https://www.diamondheatingandcooling.com/meridian/heater-repair-replacement/What should I do if my water heater is leaking from the top?
Turn off power and water, then schedule service. A leak from the top usually means a loose cold/hot supply connection, a dripping temperature and pressure (T&P) valve, or a compromised anode port. For electric units, switch off the breaker. For gas, set the control to Off. Close the cold-water shutoff above the tank to stop the leak. Avoid opening panels while things are wet. We offer 24/7 emergency and same-day service in Boise, Meridian, and across the Treasure Valley. <br/> Updated: 2025-11-05 00:00:00 <br/> Need help in Boise, ID? Call (208) 378-6624 or book online. "Diamond was extremely responsive when my water heater unexpectedly burst." — Paula H.
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Turn off power or gas and the cold-water supply right away. A leak from the bottom often means tank failure or a failing drain valve, so don’t delay service. We provide 24/7 emergency water-heater help across Boise, Meridian, and Nampa, and we follow Idaho plumbing code on repairs or replacement.
Quick steps:
- Electric: switch off the breaker. Gas: set to “off.”
- Close the cold-water shutoff valve.
- Place a pan/towels to contain water; avoid standing water near electricity.
- Call for same-day service; a technician will confirm repair vs. replacement and provide upfront pricing.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSURIeUxESldnEAE!2m1!1s0x0:0x57b92cf7c5763dab!3m1!1s2@1:CIHM0ogKEICAgIDHyLDJWg%7CCgwIhfOHtwYQkMOT5wE%7C?hl=en-US[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSURwN18zWnVBRRAB!2m1!1s0x0:0x57b92cf7c5763dab!3m1!1s2@1:CIHM0ogKEICAgIDp7_3ZuAE%7CCgwIu87EpwYQwPKItwI%7C?hl=en-US[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUNjeTZlSklREAE!2m1!1s0x0:0x57b92cf7c5763dab!3m1!1s2@1:CIHM0ogKEICAgICcy6eJIQ%7CCgwIp9WwtQYQ8K7lggI%7C?hl=en-US[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUNoaXJfQXZ3RRAB!2m1!1s0x0:0x57b92cf7c5763dab!3m1!1s2@1:CIHM0ogKEICAgIChir_AvwE%7CCgwI0qOWnwYQyOm40wM%7C?hl=en-US[4] https://www.diamondheatingandcooling.com/air-conditioning/ac-maintenance/[5] https://www.diamondheatingandcooling.com/plumbing/drain-cleaning/[6] https://www.diamondheatingandcooling.com/about-us/maintenance-plans/[7] https://www.diamondheatingandcooling.com/plumbing/emergency-plumbing/[8] https://www.diamondheatingandcooling.com/plumbing/gas-line-repair/[9] https://www.diamondheatingandcooling.com/plumbing/repiping/[10] https://www.diamondheatingandcooling.com/plumbing/[11] https://www.diamondheatingandcooling.com/plumbing/tankless-water-heater-repair/How much does water heater repair typically cost for homeowners?
Water heater repair cost depends on the problem, parts, and whether it’s a tank or tankless unit. We diagnose on site and give a clear, itemized estimate before work begins. You can expect upfront pricing and options, and we perform repairs to Idaho plumbing code, with permits when required. Same-day and 24/7 emergency service is available across Boise, Meridian, and the Treasure Valley.
- What to expect: on-site diagnosis → options with upfront pricing → professional repair → final testing.
Need help in Horseshoe Bend, ID? Call (208) 378-6624 or book online.
"Very happy with the new tankless water heater." — Michael G.
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You can, but safe, correct water heater installation usually requires a licensed pro. Gas, venting, and electrical work may need permits in Idaho, and our technicians handle them and follow Idaho code. Improper setup risks leaks, carbon monoxide, scalding, or warranty issues. We install and replace tank and tankless units, give upfront estimates, and offer same-day and 24/7 emergency service across Boise and Meridian.
Quick checks before DIY:
- Confirm fuel type and shutoff locations.
- Verify venting and combustion air.
- Check electrical/gas sizing.
- Ask your city about permits.
Need help in Meridian, ID? Call (208) 378-6624 or book online.
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Helpful Tips & Maintenance Advice
View All BlogsNampa, ID Water Heater Leak? Top-Leak Plumbing Steps
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A water heater leaking from bottom can go from nuisance to costly damage fast. If you see a puddle under the tank, breathe, stay safe, and follow the steps below. We’ll show you what to do first, how to spot the source, and when to call a licensed Boise plumber. Ha...
Where We Work
What areas do you serve for water heater?
We serve the Greater Boise Area, with frequent visits to Boise, Meridian, and Nampa. See the full list of communities we cover below.