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Diamond Air Services

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About

HVAC ContractorAir Conditioning ContractorAir Duct Cleaning ServiceGeneral ContractorHeating ContractorAuto Repair Shop
Established in 2013 At Diamond Air, your comfort is our priority. With over 20 years of combined experience, we’ve proudly earned the trust of a loyal base of residential and commercial clients who rely on us for honest, high-quality service. We service and install nearly every major HVAC brand and offer comprehensive repair, maintenance, and installation solutions — always with affordable and transparent pricing. Diamond Air was founded on the belief that clean, healthy air is essential for quality living. We began with a strong focus on indoor air quality, especially for environments where children, elders, and working professionals spend most of their time. Today, we continue that mission by delivering energy efficient systems.

Location

Diamond Air Services
1630 E Francis St Ste c, Ontario, CA
91761, United States

Hours

Monday7:00 AM - 6:00 PM
Tuesday7:00 AM - 6:00 PM
Wednesday7:00 AM - 6:00 PM
Thursday7:00 AM - 6:00 PM
Friday7:00 AM - 5:00 PM
Saturday8:00 AM - 3:00 PM
SundayClosed

Reviews

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4.5
1,821 reviews
5 stars
918
4 stars
467
3 stars
410
2 stars
25
1 star
1

What are people saying?

AI-generated from recent customer reviews

Food Quality

Customers generally enjoyed the food, noting it was fresh and tasty, although there were some complaints about specific items being cold or not prepared correctly.

Customer Service

Service quality was inconsistent; while some staff were praised for being friendly and helpful, others were reported as rude or indifferent.

Cleanliness

The restaurant was frequently described as clean, with positive remarks about the overall hygiene and condition of the facility.

Coupon Issues

Several customers expressed frustration over the refusal to accept coupons and issues with online orders, leading to dissatisfaction.

Operational Hours

There were complaints about unclear operational hours and being turned away before closing time.