Grass Roots Heating and Air

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About Grass Roots Heating and Air
Grass Roots Heating and Air operates as a licensed HVAC contractor serving Grass Valley, California and surrounding Nevada County communities. Founded by owner Alex, this locally rooted business maintains a perfect 5.0-star rating across 17 client reviews, reflecting a commitment to diagnostic accuracy and transparent recommendations. The company handles residential and commercial installations, repairs, and preventive maintenance for all major HVAC brands, with particular expertise in mini-split systems and heat pump conversions. Service hours run Monday through Friday from 7 AM to 5:30 PM, with Saturday availability from 9 AM to 4 PM, ensuring flexible scheduling for homeowners and business operators throughout the Sierra foothills region.
What distinguishes Grass Roots Heating and Air from neighboring contractors is their specialization in modern Variable Refrigerant Flow (VRF) technology, including advanced mini-split installations and high-efficiency heat pump conversions that qualify homeowners for regional utility rebates. Unlike larger companies that prioritize replacement sales, Alex and his team invest significant diagnostic time upfront, identifying repairable components before recommending system swaps. The company offers customized maintenance agreements designed for Northern California's specific climate demands, emphasizing energy efficiency and year-round indoor comfort through properly sized ductwork and intelligent thermostat integration.
Reviewers consistently highlight specific scenarios where Grass Roots delivered beyond expectations. Fred Facemire praised Alex's mini-split installation, noting the work impressed even the municipal inspector. Vincent Saporito described a complete system replacement with heat pump conversion and tailored ducting as a seamless project with fair pricing. Spencer Lotten recounted honest Diesel furnace service with transparent communication, while Miles B. emphasized that Alex takes diagnostic time other shops skip. Each named review references Alex directly, reinforcing the company's practice of dispatching experienced technicians rather than rotating junior staff.
What Customers Say
All 6 detailed reviewer accounts award 5 stars, with each mentioning Alex by name and praising his diagnostic thoroughness. Five reviewers specifically cite fair pricing and honest assessments, contrasting sharply with industry reports of unnecessary replacement recommendations. No negative reviews appear in the dataset.
Working Hours
| Sunday | Closed |
| MondayToday | 7 AM–5:30 PM |
| Tuesday | 7 AM–5:30 PM |
| Wednesday | 7 AM–5:30 PM |
| Thursday | 7 AM–5:30 PM |
| Friday | 7 AM–5:30 PM |
| Saturday | 9 AM–4 PM |
Services
Mini-Split Installation
Professional installation of ductless mini-split systems for targeted zone heating and cooling in residential and commercial spaces.
Heat Pump Conversion
High-efficiency heat pump system replacement offering year-round comfort with potential energy savings.
HVAC System Repair
Diagnostic-first repairs for all HVAC brands, focusing on fixing existing systems before recommending replacement.
Ductwork Design and Installation
Tailored ducting system design and installation for new and replacement HVAC setups.
Maintenance Plans
Preventive maintenance agreements designed for Northern California's climate and seasonal demands.
Full System Replacement
Complete residential and commercial HVAC system installation from equipment selection through final inspection.