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Your Guide to Efficient and Comfortable Home Heating and Cooling

Top Tips to Get Your HVAC System Winter-Ready in California

Although California winters are relatively mild in comparison to many other areas in the U.S., it’s crucial to prepare your HVAC system to maintain a warm and energy-efficient home. Here …

Heat Pump Water Heaters

Top Fun Facts About Heat Pump Water Heaters in California You might already know that heat pump water heaters are a fantastic way to save energy and money in California. …

Understanding SEER Ratings and Their Impact

Energy efficiency is a key consideration when choosing a new air conditioning system. This efficiency is determined by the Seasonal Energy Efficiency Ratio (SEER). Knowing how SEER ratings work can …

Top 10 Ways to Enhance Indoor Air Quality

The quality of the air inside your home can have a big effect on your health and how you feel. It’s often said that the quality of the air we …

5 Surprising Facts About Heat Pumps

Heat pumps are gaining popularity as a more energy-efficient alternative to conventional heating and cooling systems. However, there’s more to them than you might think. A-1 Guaranteed is the area’s …

Understanding HVAC Filters and Their Importance

Your HVAC system’s filter plays a crucial role in maintaining indoor air quality and the efficiency of your unit. But with so many different types and ratings available, it can …

Fall HVAC Maintenance Checklist

As we move from summer to fall and the daylight hours decrease, it’s the perfect time to get your HVAC system ready for the upcoming colder months. In California, fall …

The Future of HVAC: Innovations and Sustainability

Heating, Ventilation, and Air Conditioning (HVAC) systems are the heroes of modern comfort. They keep us warm in the winter, cool in the summer, and maintain indoor air quality year-round. …

The Hidden Marvels of HVAC Systems: The Magic Behind Indoor Comfort

In the world of modern living, we often take the comforts of our indoor spaces for granted. Whether it’s the cozy warmth on a frigid winter night or the refreshing …

How to Prepare Your Air Conditioner for a California Heat Wave

California is no stranger to heat waves. In fact, the state has experienced some of the hottest summers on record in recent years. When a heat wave strikes, it is …

The Future of HVAC: How Technology is Changing the Industry

The heating, ventilation, and air conditioning (HVAC) industry constantly evolves. New technologies are emerging all the time that are making HVAC systems more efficient, effective, and user-friendly. In this blog …

Tips for How to Handle a Heat Wave

When temperatures climb to dangerous levels, it can be dangerous for the health of people and animals. According to the Centers for Disease Control (CDC), each year, there are 67,512 …

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A-1 Guaranteed?

Family-Owned & Operated

Highly Experienced with Nearly 30 Years in Business

Heat Pump & Home Electrification Experts

Participating Contractor with Rebate & Incentive Programs

Factory Trained Installers & Service Technicians

Drug-Free Environment Maintained & Enforced

All Employees Fully Background Checked 

Voted Best Heating & Cooling Company for 19 Years

Voted Best of the Bay by KRON 4 TV for 5 Years 

Diamond-Certified Company 

Four-Time Angie’s List Super Service Award Winner

Better Business Bureau Honor Roll for 27 Years 

Certified Green Business

North American Technician Excellent (NATE) Certified

Don’t Just Read About Comfort—Experience It.

Contact A-1 Guaranteed today for expert heating and cooling solutions that keep your home comfortable year-round.

866-883-7789

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Golden State Rebates
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SMUD Participating Contractor
2022 Daily Republic Reader’s Choice
2018 Angie’s List Super Service
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Solano County’s Best of 2018
Energy Upgrade California
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