$75 Off Any Plumbing Repair (min spend $250) · Same-day service in most cases
(208) 231-1635
$75 Off Any Plumbing Repair (min spend $250)

Water Heater Repair in Boise & the Treasure Valley

No hot water? Leaking tank? Diamond diagnoses and repairs tank and tankless water heaters - same-day service in most cases, with your-quote-is-your-price honesty.

BBB Integrity Torch · Idaho's Best HVAC 2020-2022 · Top 1% Idaho Contractor

4.9 · 5,000+ reviews Licensed & Insured Since 1999
Same-day repair available in most cases - we answer live
Diamond licensed plumber repairing a residential water heater in a Treasure Valley home.
Same-Day Service Available
4.9 / 5 across 5,000+ reviews Treasure Valley's most-reviewed home services team

What's happening with your water heater?

Tap your situation - we'll connect you to a licensed plumber on our line.

Not sure what's wrong? Call (208) 231-1635 - we'll help you figure it out in 30 seconds.

4.9 · 5,000+ Google reviews Treasure Valley's top-rated
Idaho's Best HVAC 2020-2022 Three years running
Licensed & Insured Top 1% of Idaho contractors
Serving Treasure Valley Since 1999
How water heater repair works

Three steps. Honest advice. No upsell.

Call us — we answer 24/7

Tell us what's happening - is it no hot water, a leak, a noise? We'll send the right plumber with the right parts.

Licensed plumber dispatched

On-site diagnosis of your tank or tankless system - full inspection, no trainees, no handymen on the truck.

Repair explained, then done

You get repair and (if relevant) replacement options - your choice, your price in writing. We repair first, replace only if genuinely uneconomic.

24/7 emergency line answered live · Real licensed technicians, not an answering service
What makes Diamond different

The water heater plumber who tells you the truth.

Water heater work attracts the operators who'd rather sell you a new tank than fix the one you have. Here's how Diamond is different.

What cheaper water heater operators do
  • Rush to sell a new tank on every call
  • Flat-rate pricing that hides what you're actually paying
  • Don't service tankless - only know how to swap out tanks
  • Leave the old unit for you to deal with
  • No warranty on the work, or warranty 'void' if anything goes wrong
  • Skip the safety checks on gas units
What Diamond does
  • Repair first, replace only if it's genuinely uneconomic
  • Your quote is your price - in writing, before work starts
  • Tank AND tankless expertise - all major brands
  • Old unit hauled away, work area left clean
  • 90-day labour warranty on repairs, manufacturer warranty on parts
  • Full safety check on every gas water heater we touch
Why Treasure Valley calls Diamond

What you get when you call us

Hot water restored - today

Same-day service in most cases. Fully-stocked trucks mean most repairs are one-visit, not a return trip next week.

Leaks stopped before damage spreads

A leaking tank can destroy floors, drywall, and framing fast. We contain the leak and fix the cause - not just the symptom.

Honest repair-vs-replace advice

If repair makes sense, we'll say so. If your tank is past it, we'll tell you why - with the numbers. No pressure.

Legitimacy you can verify

Treasure Valley's most trusted water heater team since 1999.

Diamond has installed, repaired, and serviced thousands of water heaters across Boise and the Treasure Valley. We know the homes, the installs, and the honest answer for yours.

  • Licensed & fully insured - verify any time
  • Top 1% of Idaho contractors
  • 1,800+ permitted projects on record
  • BBB Integrity Torch Award recipient
  • Idaho's Best HVAC Company 2020, 2021, 2022
  • Idaho's Best Contractor 2022
Diamond Heating, Cooling, Plumbing & Electric licensed plumbing team serving Boise since 1999.
Diamond's Service & Install Team Licensed technicians serving the entire Treasure Valley
No hot water?

Talk to a licensed plumber now

We answer live and dispatch same-day in most cases. Tell us what's happening - we'll talk you through it on the phone.

Meet the Diamond team

The family-built company behind 5,000+ five-star reviews

Diamond isn't a private-equity rollup. It's a 26-year Treasure Valley business - built by Rick and Sue Ellen, around a single idea: do home services the way homeowners deserve.

Rick, Sue Ellen, and the Diamond Heating, Cooling, Plumbing & Electric management team in Boise, Idaho.
Rick & Sue Ellen with the Diamond leadership team

Rick opened Diamond's doors in March 1999, focused on new construction. He earned a reputation across the Treasure Valley for solving the hot-bonus-room problem nobody else could fix - and for treating customers fairly when others didn't.

In 2009, Rick's wife and business partner Sue Ellen joined full-time. Together they made the call to pivot from new construction to residential service - because they saw an industry that, too often, didn't take care of its customers. They wanted Diamond to stand for the opposite.

"We wanted clients to experience excellence and be 100% satisfied with the service they receive. We call it the Diamond Difference." - Rick & Sue Ellen, Founders

That standard is what built the company you see today - the awards, the reviews, the 1,800+ permitted projects on record. None of it happened by accident.

1999
Rick founds Diamond Heating & Cooling, focused on residential new construction.
2009
Sue Ellen joins full-time. Diamond pivots to residential service - and to the standard that defines it today.
2014
Awarded the BBB Integrity Torch Award - recognising honest, ethical business practice.
2020 - 2022
Named Idaho's Best HVAC Company three years running, plus Idaho's Best Contractor 2022.
Real customers · Real reviews

What Treasure Valley homeowners say

4.9 / 5 · 5,000+ Google reviews · Treasure Valley's most-reviewed home services team
Honest pricing - no upsell

"Up-front and clear pricing"

We were impressed with their up-front and clear pricing. John was on time, and explained everything necessary to do with no pressure to do it.

- Ed Boise, ID
Professional - start to finish

"Knowledgeable and professional"

Diamond Heating and Cooling was very knowledgeable and professional from start to finish. Highly recommended.

- Cliff Boise, ID
Reliable - excellent service

"The best possible choice"

Without a doubt, Diamond Heating and Cooling is the best possible choice you can make when deciding on a company you can rely on to provide excellent service.

- Caleb G. Boise, ID
Service area

Serving the entire Treasure Valley

Diamond is based in Garden City and serves homeowners across the Treasure Valley & surrounding areas.

BoiseGarden City (HQ)MeridianEagleNampaCaldwellKunaMiddletonStar

Not sure if you're in our area? Call (208) 231-1635 - we'll confirm on the line.

Book your plumber

Book your water heater repair now

Tap the phone to talk live now. Real licensed technicians, your-quote-is-your-price honesty, no answering service.

  • Tank & tankless expertise - all major brands
  • Your quote is your price - no surprise fees
  • Licensed, insured, and experienced - every job
Questions, answered

Before you call - the things people want to know

Can you come out today?
Yes - same-day water heater service in most cases. Call us and we'll give you a real arrival window based on what you're dealing with, not a vague four-hour block.
How much does water heater repair cost?
We charge a modest dispatch fee for the call-out and on-site diagnosis - we'll confirm the exact amount on the call. If you go ahead with the repair, we quote the full job before any work starts - and your quote is your price. No bill-builders, no surprise add-ons.
Should I repair it or replace it?
Depends on the unit's age, the nature of the issue, and what it'll cost to fix. We give you honest numbers on both options so you can decide - we repair first, replace only when it's genuinely uneconomic. No pressure either way.
Do you service tank AND tankless water heaters?
Yes - we service both tank and tankless systems across all major brands. Whether you've got an older traditional tank or a newer high-efficiency tankless, we've worked on it before.
Do you handle gas water heaters?
Yes - gas, electric, tank, and tankless. We do a full safety check on every gas unit we work on. If you smell gas, turn off your gas and call us immediately on (208) 231-1635.
What warranty do you offer?
90-day labour warranty on repairs we perform, plus the manufacturer warranty on any replacement parts. If you're installing a new tank, the labour warranty is longer - we'll walk you through the options.
What if it leaks at night?
Our 24/7 emergency line is answered live. A leaking water heater can cause thousands in damage fast - call us, and we'll talk you through shutting off the water supply while our team is dispatched.

No hot water? Leaking tank? We're ready to help.

Same-day water heater service in most cases. Tank and tankless. Honest advice, your-quote-is-your-price.

📞 Call Now · (208) 231-1635