DIAMOND HEATING & COOLING logo
Approved Pro
This pro has maintained an average of 4.5+ star throughout their time with Angi.
Approved Pro

DIAMOND HEATING & COOLING

Heating and Air Conditioning Service, Water Heater Service, Mold Remediation,
This pro has maintained an average of 4.5+ star throughout their time with Angi.

About us

We have a low $79 diagnostic fee, 24/7 service with NO after hour fees for Silver Club Members. We are now offering full service electrical and plumbing in addition to our HVAC services! We provide service, maintenance and replacement on all makes and models of furnaces and air conditioners. We have wonderful Indoor Air Quality products which can help with Asthma, Allergies or even Mold. Hard work, ambition, safety, honesty and the desire to be a superior presence in a demanding business have won our reputation of quality and dependability placing us as "Your Home's Best Friend". Our company was founded on the premise that quality principles and attention to detail should be unwavering standards. Experience the Diamond Difference today!

Business highlights

Emergency services offered
26 years of experience

Services we offer

Furnace repair, A/C repair, A/C service, Furnace service, Furnace Replacement, A/C replacement, Filters, Indoor Air Quality, Gas Lines, HVAC, Geo Thermal, Heat Pumps, Furnace Maintenance, A/C Maintenance

Services we don't offer

Boiler repair

Amenities

Emergency Services

Yes

Free Estimates

Yes

Warranties

Yes

Senior Discount

5%

Accepted Payment Methods

  • American Express
  • Financing Available
  • Check
  • Visa
  • Discover
  • MasterCard
Reviews
4.9141 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
95%
4
3%
3
1%
2
0%
1
1%

Filter reviews by service

Showing 1-25 of 141 reviews
Timothy D.
Oct 2025
5.0
Heating and Air Conditioning Service
Yes, I recommend this pro
Diamond scores again! Performed the expected service and then educated me about maintenance. Answered questions that will save me tons.

Chris T.
Sep 2025
5.0
Heating and Air Conditioning Service
Yes, I recommend this pro
Yes, Kenny was very thorough and explained everything very well and fixed the problem! I am so glad to be using this Company!!

Chris T.
Feb 2025
5.0
Heating and Air Conditioning Service
Yes, I recommend this pro
$312
Jason did a fantastic job, was thorough and explained all the options very well! This will be my heating and Air Conditioning service company from here on!

Ricky J.
Jun 2024
5.0
Heating and Air Conditioning Service
Yes, I recommend this pro
$108
Excellent company and technicians. Efficient and on time. Polite and friendly.

Joann P.
Jan 2024
5.0
Plumbing
Yes, I recommend this pro
$373
It went great technician fixed the issue ev3en though it was a pain due to prior install not being to code.

Phil C.
Nov 2023
5.0
Plumbing
Yes, I recommend this pro
$1,000
This company is great. Outstanding customer service on the phone. Always bright and respectful. Service techs are well educated, explain the situation clearly and clear about pricing and options. Service work is clean and they go over everything before leaving. Great job and great company. Thank you.

SUZANNE W.
Sep 2023
5.0
Heating and Air Conditioning Service
Yes, I recommend this pro
Dylan and Matt were very professional, worked non-stop, and checked that everything was up and running before they left. I was extremely happy with their work ethic. Thanks Dylan and Matt!!

Chris A.
Jul 2023
5.0
Heating and Air Conditioning Service
Yes, I recommend this pro
$119
Extremely well! We would hire again. Very efficient.

Ryan M.
Jun 2023
5.0
Water Heater Service
Yes, I recommend this pro
$2,500
They were prompt to satisfy my service request and finished the job in no time.

Jana H.
Dec 2022
5.0
Plumbing
Yes, I recommend this pro
$140
They were on time and fixed my issue quickly. Have always had great service from Diamond Heating & Cooling

Joanne W.
Dec 2022
5.0
Heating and Air Conditioning Service
Yes, I recommend this pro
Diamond Heating and Cooling (Caden) always does a thorough and accurate assessment and repair (if needed). The company offers memberships, payment plans as well as discounts. Definitely call them for your Heating, Cooling, Plumbing, and Electrical services.

Dwayne Y.
Dec 2022
5.0
Heating and Air Conditioning Service
Yes, I recommend this pro
They are professional.

Marcia B.
Dec 2022
1.0
Heating and Air Conditioning Service
$11,987
They said we were paid in full and then they try to charge us for the water heater if we're paid in full how are they charging us for a water heater they light and manipulated to old ladies
Response from DIAMOND HEATING & COOLING
"In reviewing your file, I can understand where the confusion came in. We had 2 different departments out to your home, our HVAC department, who installed a new furnace and air conditioner and then our plumbing department, who installed your water heater. While the original estimate had both the HVAC and the Plumbing all together on the quote, when our HVAC team came out, they only collected for their portion and failed to collect for the water heater portion of the job. You did receive a paid invoice for the furnace and A/C install, but if you take the total paid for that and subtract it from the estimate, you will find that the balance is for the water heater installation. I apologize for the confusion. We should have made it much simpler for you to understand. I assure you, we did not lie to you or manipulate you in any way. As with all of our installs, everything is covered by a 100% satisfaction guarantee, so we are eager to work with you on this situation until we can come to a clear resolution. Thank you, Sue Ellen Vice President"

Christopher L.
Nov 2022
5.0
Plumbing
Yes, I recommend this pro
$800
They May not want me to call them with all the work I put them through but they will always be my first call

Morgan W.
Oct 2022
5.0
Heating and Air Conditioning Service
Yes, I recommend this pro
$13,000
Perfect. Fast, efficient, friendly, professional.

Fred H.
Aug 2022
5.0
Heating and Air Conditioning Service
Yes, I recommend this pro
$13
Excellent job. Thourough and detailed.

Charlene W.
Jun 2022
5.0
Heating and Air Conditioning Service
Yes, I recommend this pro
The morning Owen was coming out he text me a photo of him and the time he be arriving. It was awesome they came out look at the unit, told us what was wrong and how soon it would be fixed. They were on time very nice and emailed us a quote with 3hours.

Joe R.
May 2022
5.0
Heating and Air Conditioning Service
Yes, I recommend this pro
They have been excellent. I really appreciate their communication with an email sent out with a picture of the technician that will be doing the work. I would highly recommend them as well.

Fred H.
Feb 2022
5.0
Heating and Air Conditioning Service
Yes, I recommend this pro
$1,800
They did a great job. Clean, professional, friendly, informative.

Jeff K.
Feb 2022
5.0
Heating and Air Conditioning Service
Yes, I recommend this pro
Jason and Todd of Diamond Heating & Cooling revisited my home after originally providing a quote to replace my whole HVAC system. My system works fine, it's just 20+ years old. They were both very friendly and knowledgeable but more importantly, they were thorough and honest in their assessment of my system and what could be done, even though it lead to my decision to wait for now. They were by far the most thorough in evaluating my system than any of the other companies I had come out. Both they and the company valued honesty and doing things right over "getting a sale." My thanks to the Diamond's management and to Jason and Todd. I definitely recommend them and will use their services in the future.

Patricia T.
Feb 2022
5.0
Heating and Air Conditioning Service
Yes, I recommend this pro
$229
Diamond Heating’s technician Caden responded. Such a pleasant professional. He knows his business! He had us up and running within 30 minutes even though we still needed a replacement part. He was back a few days later to replace the problem part. Even offered to take the bag of garbage out that was sitting next to the back door. TRUE PROFESSIONAL!

Pam M.
Jan 2022
5.0
Heating and Air Conditioning Service
Yes, I recommend this pro
Albert checked the heater and stated everything is okay.

John M.
Oct 2021
5.0
Heating and Air Conditioning Service
Yes, I recommend this pro
$200
It was great

Patricia C.
Jun 2021
5.0
Heating and Air Conditioning Service
Yes, I recommend this pro
It went great. Jason was very nice, answered all my questions and addressed all of my systems.

Patricia C.
Jun 2021
5.0
Heating and Air Conditioning Service
Yes, I recommend this pro
$1,000
My experience with everyone at the company was positive from the initial call to the reminders and other communications. Alex was personable and professional. He explained everything and answered all my questions. I would hire them again.
...
Showing 1-25 of 141

Licensing

Bonded

Insured

Licensed*

Trade License Number

034967

Trade License Locale

ID

Trade License Authority

Idaho Division of Building Safety

Trade License Expiration

07/31/2025

State Contractor License Requirements

All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our Find Licensing Requirements page.

*Contact business to see additional licenses.

FAQ

DIAMOND HEATING & COOLING is currently rated 4.9 overall out of 5.

Monday: Open All Day Tuesday: Open All Day Wednesday: Open All Day Thursday: Open All Day Friday: Open All Day Saturday: Open All Day Sunday: Open All Day

DIAMOND HEATING & COOLING accepts the following forms of payment: American Express, Financing Available, Check, Visa, Discover, MasterCard

Yes, DIAMOND HEATING & COOLING offers free project estimates.

No, DIAMOND HEATING & COOLING does not offer eco-friendly accreditations.

No, DIAMOND HEATING & COOLING does not offer a senior discount.

Yes, DIAMOND HEATING & COOLING offers emergency services.

Yes, DIAMOND HEATING & COOLING offers warranties.

DIAMOND HEATING & COOLING offers the following services: Furnace repair, A/C repair, A/C service, Furnace service, Furnace Replacement, A/C replacement, Filters, Indoor Air Quality, Gas Lines, HVAC, Geo Thermal, Heat Pumps, Furnace Maintenance, A/C Maintenance

Boiler repair