Our Customers Love us

It's in the air we breathe

Proudly Serving San Francisco, Santa Cruz, San Jose, Fremont, Gilroy, Daly City & Surrounding Areas.

WHY CHOOSE US

Why Choose Lunar Air Systems

Reliable, Honest, HVAC Experts

We provide reliable, high-quality heating, cooling, and indoor air-quality solutions for homes and businesses across the Bay Area. 

Our mission is simple: to deliver clean, comfortable, healthy air in every space we service.


As a licensed and accredited HVAC provider, we take pride in doing things the right way, combining technical expertise with a friendly, educational approach that helps you understand your system and feel confident in your decisions. Our team is known for thorough diagnostics, thoughtful planning, and craftsmanship that puts long-term reliability first.


Homeowners and business owners consistently describe our work as meticulous, honest, and highly professional. Whether we’re repairing a failing AC unit, designing a new heat pump system, or upgrading your home’s comfort and air quality, we provide solutions built for performance and peace of mind.


Why Choose Us

  • Top-Rated Service - Customers repeatedly praise our responsiveness, accurate troubleshooting, and clean, detail-oriented workmanship. We maintain near-perfect satisfaction ratings thanks to our commitment to quality and customer care.
  • Expert Guidance - We take the time to explain your options clearly, no pressure, no shortcuts. You’ll always understand what’s happening with your system and the smartest path forward.
  • Reliable, Owner-Influenced Workmanship - Every project benefits from experienced leadership and strict quality standards. We don’t just fix HVAC systems, we design solutions that maximize efficiency, comfort, and long-term value.
  • Fast, Honest Support - From quick diagnostics to same-day or after-hours service, we’re here when you need us. In many cases, we’ll walk you through simple fixes over the phone if it can save you a service call.
  • Healthier Indoor Air - Comfort is important, but clean air matters even more. We offer system improvements and filtration upgrades that help reduce pollutants and keep your home healthier year-round.

Our Customers say it best:


  • “The owner, James, responded immediately on a busy holiday weekend to help us fix our air-conditioning unit. He offered over-the-phone troubleshooting before coming over the same day to repair our unit — incredible customer service!”
  • reviews.birdeye.com
  • “James is extremely knowledgeable and will provide you the best service. I had him replace my furnace with an electric heat pump in the attic and couldn’t be happier with the outcome.”

Our HVAC Services

a complete range of HVAC services designed to ensure your comfort and safety.

We provide repair, replacement, and installation services designed to protect your property and give you peace of mind.
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Roof Repair

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Roof Replacement

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New Roof Installation

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Commercial Roofing

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Furnace Service & Repair

Stay warm and comfortable all winter with dependable heating service and repair.
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Heat Pumps

Heat pump heating solutions offer an energy-efficient, environmentally friendly way to keep your home warm and comfortable.
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Ducted & Ductless Heating Solutions

Flexible, efficient ways to keep your home comfortable year-round.
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AC Service & Repair

Keep your home cool and comfortable, enjoy consistent, worry-free cooling all season long.
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AC Installation & Replacement

Upgrade your home’s comfort with professional HVAC equipment replacement and installation.
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Mini Split Sytems

Mini-splits offer quiet performance, customizable temperatures, and impressive energy savings.
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Duct Repairs

Healthy airflow starts with well-designed, properly sealed ductwork.
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Indoor Air Quality Solutions

Breathe easier with indoor air quality solutions designed to keep your home healthier and more comfortable.
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Furnace Service & Repair

Stay warm and comfortable all winter with dependable heating service and repair.
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Heat Pumps

Heat pump heating solutions offer an energy-efficient, environmentally friendly way to keep your home warm and comfortable.
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ACCREDITED