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The Diamond Plan
(209) 722-7463Serving the Central Valley and Surrounding Areas
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The Blog

Your guide to a more comfortable home.

Seasonal tips, honest how-tos, and the occasional look under the hood — from the Merced & Atwater team keeping the Valley comfortable, season after season.

Diamond Heating & Air — new website
Company News

Our New Website Is Live — and Why Comfort Is More Than a Luxury

Our new website is live. Here's why your HVAC system is one of the most important parts of your home — and why comfortable living is at the heart of what we do.

Diamond Air · July 15, 2026