Air Conditioning Installation in Mendocino & Lake County

Stay cool with expert AC installation from All In Heating & Cooling, proudly serving Mendocino and Lake County. We install high-efficiency ducted and ductless systems backed by 30+ years of combined experience and trusted local service.

Comfort. Quiet.

Beat the Heat with Efficient Air Conditioning Solutions

If your air conditioner struggles to cool every room, increases your energy bills, or feels outdated, you're not alone. Many homeowners in the Redwood Valley and Ukiah areas rely on mismatched mini‑splits or window units that fail to provide consistent comfort.

Seamless Cooling, Designed for Your Space

Seamless air conditioning installation built for comfort and efficiency. We design each system to match your home’s needs while keeping your space clean, quiet, and cool across Mendocino and Lake County.

Get Started

All In Heating & Cooling is a Mitsubishi Electric 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.

A Simple HVAC Plan That Works for Mendocino & Lake County Homes

1. Let’s Talk Comfort

Let’s talk heating and cooling. We’ll start with a quick phone call to learn what you’re experiencing—whether your system needs replacement, you're upgrading for efficiency, or installing something new. If it sounds like a fit, we’ll schedule an in-home visit to inspect your current setup, discuss goals, and determine what system makes the most sense for your space.

2. Design the Right Fit

After evaluating your layout and needs, we’ll recommend a system that fits your lifestyle, energy use, and budget. Whether it’s ducted, ductless, or a combination, we’ll walk you through your options and provide a clear, detailed estimate. You’ll get expert input on system type, size, performance, and long-term value, so you feel confident moving forward.

3. Get a Clean, Professional Installation

Once your system design is finalized, we handle everything—from removing the old unit and preparing the space to the full installation and clean-up. You won’t have to coordinate with multiple crews or worry about missed steps. Our licensed techs manage the entire process, so you get a finished system that runs smoothly and lasts for years.

Mendocino & Lake County HVAC Reviews

Recent Installs & Local HVAC Work

Our Service Areas

We provide heating, cooling, ducted and ductless system installation, maintenance, and more across Mendocino and Lake County, including:

Stay Comfortable with All In Heating & Cooling

Call now or book online to schedule your consultation. We'll help you find the right heating or air conditioning solution for your home, installed cleanly and professionally.