$75 Off AC Repair · Same-day service · Live dispatch in the Treasure Valley
(208) 231-1635
$75 Off AC Repair

AC Repair in Boise & the Treasure Valley

AC not cooling? Blowing warm air? Strange noises? Diamond's HVAC technicians diagnose and repair your AC - same-day in most cases, with honest repair-vs-replace advice.

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 in most cases - we answer live
Diamond HVAC technician servicing a residential air conditioning unit 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 your AC doing?

Tap your symptom - we'll connect you to an HVAC technician on our line.

Something else going on? Call (208) 231-1635 - we handle every kind of AC issue.

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 AC repair works

Three steps. Real diagnostics. No pressure to replace.

Call us — we answer 24/7

Tell us what your AC is doing - not cooling, not turning on, making noises. We dispatch an experienced HVAC technician.

Full system diagnostics

On-site diagnosis of your system - not guesswork. Performance check, refrigerant, electrical, and airflow verified before we quote.

Repaired and tested - or honest replace advice

If it makes sense to repair, we repair and test. If your system is genuinely past it, we'll say why - with the numbers. No pressure.

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

The HVAC company that repairs before it replaces.

AC repair is the service where 'diagnosis' becomes a sales pitch for a $10,000 replacement. Here's how Diamond is different.

What cheaper HVAC companies do
  • Push a full system replacement when a repair would work
  • Vague diagnostic - no real data, just 'it needs replacing'
  • Bait-and-switch pricing - $29 diagnostic that becomes $800
  • Parts-only warranty that leaves you paying for labour again
  • Won't touch older systems - just tell you to replace
  • Send whoever's available - trainees on complex repairs
What Diamond does
  • Repair first, replace only when it's genuinely necessary
  • Full system diagnostics - performance check with real numbers
  • Your quote is your price, in writing, before work starts
  • 1-year labour + manufacturer parts warranty
  • All brands, all ages - we don't write off older systems without cause
  • Experienced HVAC techs trained across all major brands
Why Treasure Valley calls Diamond

What you get when you call us

Home cool again - same visit in most cases

Fully-stocked trucks, experienced technicians, and all the common replacement parts mean most AC repairs are one-visit, not a return trip.

Root cause found - no repeat breakdowns

We diagnose the actual cause, not just the symptom. Fixing a tripped breaker without finding what caused it just means you'll be calling us again next week.

Honest repair-vs-replace advice

If your system is 18 years old and the compressor is failing, we'll say so. If it's a $150 fix on a 6-year-old unit, we'll say that too. Your numbers, your call.

Legitimacy you can verify

Idaho's Best HVAC Company - three years running.

Diamond has been the Treasure Valley's most-trusted HVAC name since 1999, with Idaho's Best HVAC Company awards in 2020, 2021, and 2022. Our technicians are trained across all major AC brands.

  • 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 HVAC technician team - Idaho's Best HVAC Company 2020, 2021, 2022.
Diamond's Service & Install Team Licensed technicians serving the entire Treasure Valley
AC down?

Talk to a licensed HVAC tech now

We answer live and dispatch same-day in most cases. No answering service, no callback queue - just a real person ready to help.

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 HVAC tech

Book your AC repair now

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

  • Same-day AC repair in most cases
  • All brands, all ages - experienced HVAC technicians
  • Repair first - honest replace advice only when needed
Questions, answered

Before you call - the things people want to know

How fast can you come out?
We aim for same-day AC repair where possible - peak summer demand can extend that. Our 24/7 line is answered live and we'll give you a real arrival window on the call.
How much does AC repair cost?
We charge a modest dispatch fee for the call-out and full system diagnosis. Once we've identified the issue, we quote the full repair before starting - and your quote is your price. No diagnostic-fee bait-and-switches.
Should I repair or replace my AC?
Depends on three things: the age of the system, the cost of the repair, and your system's efficiency. We give you honest numbers on both options - we repair first and only recommend replacement when it's genuinely the better financial call. No pressure either way.
Do you service all brands?
Yes - our HVAC technicians work across all major residential AC brands. Whatever's on your wall or outside, we've almost certainly worked on it before.
What's included in an AC tune-up?
A comprehensive multi-point system inspection covering the key areas: refrigerant, electrical components, airflow, coils, filter, and thermostat - tailored to what your system needs. We'll walk you through findings and any recommendations for the season ahead.
What warranty do you offer on AC repair?
1-year labour warranty on repairs we perform, plus the manufacturer warranty on any replacement parts (which varies by part). We stand by the work.
When should I schedule maintenance?
Ideally once a year, before peak summer - April or May is perfect in the Treasure Valley. Pre-season tune-ups catch failing parts before they strand you on a 100°F day and extend your system's life.

Hot home? Let's get the AC running today.

Same-day AC service in most cases. Honest diagnostics. Repair first. Idaho's Best HVAC Company three years running.

📞 Call Now · (208) 231-1635