We were one of the first in the county to build sealed duct systems and test them with the appropriate equipment. Our customers were happy because our systems were efficient, they were comfortable with their systems and their energy bills were reasonable. We began to get recognition from architects, engineers, general contractors, and county & city building officials. We kept the business small for one reason; we wanted to be on each job so that we could keep the quality high and continue to deliver the kind of job that we were known for. You will find that a McCoy and Bielenberg heating and/or air conditioning system will be the best investment you can make for your family’s health and comfort. We are here to help. Call today to find out what you have been missing. (530) 265-0807 and see what a difference a professionally installed system can make in your comfort and your utility bill.

Updated Oct 2026

A & A Air Conditioning Heating & Sheet Metal

Air Conditioning (AC) Heating & Ventilating Contractors (HVAC)

📍 763 S Auburn St, Grass Valley, CA, 95945

📞 530-265-9729

🌐 aaheating.com

Byers Leafguard Gutter Systems

Solar Energy Equipment & Systems Service & Repair

📍 11773 Slow Poke Ln, Grass Valley, CA, 95945

📞 530-272-8272

🌐 byersleafguard.com

Related Categories

Air Conditioning (AC) & Heating Equipment & Supplies Air Conditioning (AC) Heating & Ventilating Contractors (HVAC) Sheet Metal Solar Energy Equipment & Systems Service & Repair

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