
Comfort systems should work for your space. All In Heating & Cooling installs ducted and ductless mini-split systems for homes across Redwood Valley, Ukiah, and Mendocino and Lake County, delivering year-round performance, energy efficiency, and flexible design that fits your home and lifestyle.
From summer heat to cold winter nights, homes in Redwood Valley and Mendocino County see real temperature swings.
Outdated or oversized systems drive up energy bills, cool and heat unevenly, and wear down faster than they should. Upgrading to a properly sized mini-split system solves all of that.
At All In Heating & Cooling, we install ducted and ductless mini-split systems with precision, from proper sizing to clean finish work. As a Mitsubishi Electric Elite Diamond Contractor, we bring manufacturer-level expertise and brand-backed support to every installation with no shortcuts and no rushed jobs.
We handle single-zone and multi-zone ductless system installation, ducted mini-split installation, existing system replacement, zoning design and layout, line set installation and concealment, and full system testing and commissioning.
Reliable comfort, reduced energy waste, and a setup built to last.
All In Heating & Cooling is a Mitsubishi Electric Elite Diamond Contractor
This credential reflect advanced training, brand-backed support, and a commitment to reliable service. Every system is installed with precision, following manufacturer standards for performance and longevity. No shortcuts. No rushed jobs.
We start with an in-home assessment to review your current setup and discuss your comfort goals.
Whether you are replacing an old system or starting fresh, we confirm whether ducted, ductless, or a hybrid solution is the right fit for your home. We serve Redwood Valley, Ukiah, Willits, and surrounding areas across Mendocino and Lake County.
After the assessment, we calculate the right capacity and layout for your space. Every detail is accounted for, from airflow to zoning.
We build a plan that prioritizes performance, energy savings, and long-term reliability.
We complete the installation with clean, professional workmanship and check every connection before we leave.
Your system runs exactly the way it should, quiet, efficient, and built to last.






We provide heating, cooling, ducted and ductless system installation, maintenance, and more across Mendocino and Lake County, including:
Don’t let an outdated system hold back your comfort. Get efficient, reliable heating and cooling that fits your home.
© 2019-2025 All In Heating & Cooling || Website Designed and Powered by Tekton Growth