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Claim This BusinessDycus Heating and Air Conditioning has served Modesto and Manteca homeowners for over 25 years, founded by Dave Dycus who entered the HVAC trade at age 17. This family-owned company employs NATE-certified technicians who handle air conditioning repairs, furnace installations, and system replacements for both residential and light commercial clients. With 251 reviews earning a 4.9-star rating, the company maintains consistent praise for professional service and transparent pricing, operating Monday through Friday from 7 AM to 5:30 PM.
What distinguishes Dycus Heating and Air Conditioning is their commitment to doing the job correctly from the first attempt. The company offers 0% APR financing options for qualifying equipment purchases and stands behind their installations with warranties. Their technicians handle the full system lifecycle, from designing and installing new equipment to maintaining and repairing existing units. Emergency service availability provides peace of mind during Modesto's extreme summer heat waves when AC failures create urgent situations for homeowners.
Customer stories from reviewers reveal the day-to-day experience of working with Dycus. When Erica Martinez needed resolution, Brittany coordinated prompt technician visits and ensured clear communication throughout. Steven, a service technician, quickly diagnosed a heating issue for Cheri Nikkel and restored warmth to her home. Brandon Bussell hired Dycus to replace two AC units and install a tankless water heater , the two-person crew completed the entire job in two days, with Bussell noting the cleanest installation he had ever seen and praising both the price and equipment quality.
All 251 reviews are 5-star ratings, with customers consistently praising specific technicians including Brittany, Steven, and Doug for their communication, diagnostic skill, and respectful home service. Multiple reviewers highlight the company's responsiveness to emergency calls and thorough explanations of repair options.
| Sunday | Closed |
| Monday | 7 AM–5:30 PM |
| Tuesday | 7 AM–5:30 PM |
| Wednesday | 7 AM–5:30 PM |
| ThursdayToday | 7 AM–5:30 PM |
| Friday | 7 AM–5:30 PM |
| Saturday | Closed |
Fast diagnostics and repair for air conditioning failures, plus seasonal tune-ups that extend system life and improve efficiency during Modesto summers.
Professional installation of new air conditioners with energy-efficient options, system sizing tailored to home square footage and cooling needs.
Installation of ductless mini-split systems for homes without existing ductwork or for adding custom zone cooling to specific rooms.
Heating system diagnostics, repairs, and annual maintenance inspections for natural gas, electric, propane, and dual-fuel furnaces.
Professional furnace replacement with precision installation to improve energy efficiency and ensure reliable winter heating.
Installation and setup of Wi-Fi enabled smart thermostats for remote temperature control and improved energy management.
Products and installations designed to improve home air quality, addressing ventilation, filtration, and air purification needs.
Installation, replacement, and servicing of commercial heating and cooling systems including advanced VRF technology for businesses.