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Call Guido’s Service for prompt, reliable support. From installations and repairs to routine maintenance, our team is ready to assist whenever you need us most.

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Discover what our satisfied customers say.

At Guido’s HVAC Service, our commitment is your complete satisfaction. These real reviews reflect the quality and professionalism we deliver in every HVAC service. Trust the experts.

Guido's

HVAC SERVICES

01
HVAC Installation
Expert setup of heating and cooling systems customized for your property, delivering maximum efficiency, reliable performance, and lasting comfort in both residential and commercial spaces.
02
System Replacement
Expert replacement of heating and cooling systems designed for your property, guaranteeing efficient performance, improved energy savings, and dependable comfort for both residential and commercial environments.
03
Floor Furnace Expert.
Guidos Service provides professional floor furnace repairs throughout Oakland, Hayward, and the East Bay. We handle tight crawl spaces, restoring vintage heating units with dependable, safe, and efficient solutions every time.
04
Preventive Maintenance
Regular inspections and system tune-ups that improve efficiency, lower utility bills, extend HVAC lifespan, and help avoid costly, unexpected failures during severe weather conditions.
05
Emergency Repairs
Quick, dependable service available anytime you need it. Our experts troubleshoot and resolve urgent HVAC problems, restoring comfort and minimizing downtime for both residential and commercial properties.
06
Air Duct Cleaning
Complete ductwork cleaning that boosts airflow, removes dust and allergens, and improves indoor air quality for healthier homes and businesses.
07
Commercial HVAC Services
Tailored heating and cooling solutions for offices, restaurants, retail spaces, and large facilities—engineered to handle demanding, high-traffic, and large-scale commercial environments effectively.
08
Indoor Air Quality
We install advanced purifiers, filtration systems, and humidity controls to keep air clean, balanced, and free from odors, allergens, and harmful pollutants.
09
Thermostat Upgrades
Upgrade to smart thermostats for precise climate control, remote convenience, and energy savings. Modern solutions designed to enhance comfort and efficiency in every home.

Why Choose Guido’s Service for Your HVAC Needs

At Guido’s Service, we know that heating and cooling go far beyond comfort—they’re critical for daily living and smooth business operations. That’s why we provide customized HVAC solutions for both residential and commercial clients throughout Contra Costa and Alameda counties.

With more than 30 years of proven experience, our team is fully equipped to handle every aspect of your HVAC needs—from new installations and complete system upgrades to urgent repairs and preventative maintenance plans. For homeowners, this means reliable comfort, efficient energy use, and peace of mind year-round. For business owners, it means dependable service that minimizes downtime, creates a pleasant environment for employees and customers, and reduces operating costs through improved system performance.

We’re committed to transparency, fair pricing, and delivering exceptional workmanship on every project. Whether you’re constructing a new property, replacing an older system, or preparing for seasonal maintenance, Guido’s Service provides the professionalism, speed, and results you can count on—every time.

Choose Guido’s Service, and discover the difference of working with a trusted local company that genuinely cares about your comfort and long-term success. With us, you’re not just hiring HVAC contractors—you’re partnering with experts dedicated to keeping your home or business running smoothly, season after season.