HVAC reviews in Van Nuys, California

Diamond did a good job helping me get a new heat pump after my old one failed. They showed up quickly and gave me a fair price. The team was open and honest about everything, which I appreciated. I'd suggest them to anyone looking for a new system or just maintenance work done on their existing one.

The tech arrived quickly and got the job done efficiently. He walked me through the fix and was upfront about everything. Nice guy, did a great job.

Oscar and his team deliver consistently high standards of reliability and excellent customer service.

Great service and value. They've completed all three floors to my satisfaction at a fair price.

Quick and informed service.

Quick reliable fix for a 27-year-old heating system.

They really deliver.

Excellent service. Highly professional. I'm extremely satisfied and would highly recommend them.

Oscar's team showed excellent professionalism and skill at our family member's residence; highly recommended without hesitation.

As a property owner, I'm always on the lookout for trustworthy professionals who deliver top-notch service at fair prices. I've had my share of disappointments with larger companies, so I stick with small-owned operations that consistently get it right.

Oscar's Diamond Heating & Air Conditioning Inc. is one such company. Oscar himself is a standout – professional, responsive, and personable. He's transparent about costs and always delivers on his promises. When it comes to heating and air work, he's the go-to guy.

I recently hired him to install a mini-split system in a granny flat renovation. I was so impressed with his work that I brought him back for another job – installing a new HVAC system at another rental property. This time, Oscar needed to use a crane, which required some coordination and communication. He pulled it off smoothly, completing the installation in just a few days without disrupting my tenants.

What really impresses me is how responsive Oscar is to his customers. I've had multiple conversations with him on various topics, and he always answers my calls or gets back to me promptly. When I needed replacement remotes for the mini-splits, he even had them delivered the next day.

Overall, I'm thrilled to have found Oscar and will continue to rely on him for all my HVAC and mini-split needs.

I've had Diamond Heating handle four different projects for me over several years, including ongoing maintenance of all units. The service is top-notch - both professionals and knowledgeable staff ensure work is done correctly, and they're skilled at finding optimal locations for AC units in a given space. It's clear that they take the time to understand each customer's needs, working collaboratively to deliver results. I highly recommend this company to anyone seeking reliable, honest, and collaborative assistance with their air conditioning needs.

This HVAC company truly delivers exceptional service. What sets them apart is their unwavering dedication to customer satisfaction even after the initial installation. They consistently return for maintenance checks, ensuring the system operates flawlessly. It's clear they prioritize quality workmanship and long-term performance over just completing the job. Their warranty is top-notch, making them a standout choice.

We've collaborated with Diamond Heating and Air Conditioning Inc. numerous times for our new builds in the Palisades area, and they always deliver. Their team is reliable, punctual, and executes high-quality work. Inspections are seamless, and communication is transparent throughout the process. What sets them apart is their grasp of the construction pace and standards – a rare quality among HVAC contractors. We're eager to continue our partnership on future projects, making Diamond an ideal choice for new construction builds.

Had a fantastic experience with this company. They stepped up to the plate when I needed urgent assistance. The technicians, Mike and Oscar, were top-notch - extremely professional, courteous, and flexible. The entire process was swift, hassle-free, and greatly reduced my stress levels.

The technician failed to inspect the floor ducts thoroughly, leading to incorrect conclusions about the source of the odor. Instead, another company revealed that rats had damaged the ducts, leaving behind feces and nests. The original diagnosis was grossly inaccurate, suggesting the smell came from a non-functional heater when in fact it was much more serious.

They promptly came back the following day if the initial fix didn't resolve the problem.

Egor did a great job. I appreciate how stress-free it was working with him.

They did a good job. Fixed the problem quickly and clearly explained what was wrong.

Overpriced with questionable integrity, they attempted to double charge me for the same fix.

This technician exceeded expectations with exceptional service, truly deserving of recognition.

The technician was professional and efficient, answering all my queries and providing a fair estimate.