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25 Years
experience
Emergency
services
Premier HVAC Services for Modesto Homeowners and Businesses
Dycus Heating & Air Conditioning has been serving the Central Valley community since 2001, building a foundation of excellence in HVAC systems through honesty and quality craftsmanship. Our family-owned operation leverages over 30 years of combined industry expertise to deliver tailored residential and commercial heating, cooling, and indoor air quality solutions. As NATE-certified professionals, we prioritize continuous education to maintain technical proficiency while offering 24/7 emergency service for critical climate control needs. Our commitment to transparency manifests through upfront pricing, comprehensive warranties, and personalized consultations that ensure proper system selection.

With specialized capabilities in new construction installations, system replacements, and energy-efficient retrofits, we maintain rigorous quality standards through documented processes and performance verification. Our locally rooted approach combines responsive service scheduling with long-term customer relationships built on reliable execution. The business maintains CSLB contractor license #789608 and invests in ongoing equipment upgrades to deliver durable, code-compliant installations. Customer satisfaction remains our primary measure of success, evidenced by repeat business and community referrals across both residential and light commercial sectors.
Services
AC Repair Heating Installation Indoor Air Quality Commercial HVAC Water Heater Services Ductless Systems Heat Pump Installation System Maintenance Emergency Repairs New Construction HVAC
Details
  • Year established: 2001
Highlights and features
  • Our team maintains NATE certification for advanced HVAC technical proficiency
  • We offer 24/7 emergency service with response availability until 8pm daily
  • Certified technicians undergo continuous training on the latest HVAC technologies
  • We provide documented warranties covering both parts and labor
  • Specialized expertise in energy-efficient system design and installation
Associations and certifications
  • NATE
What people say
Knowledgeable staff Prompt service Thorough explanations Long-term reliability Trustworthy technicians
Services
AC Repair
Our certified technicians provide prompt diagnosis and repair of residential and commercial air conditioning systems. Utilizing advanced diagnostic equipment and factory-approved replacement parts, we restore system functionality while identifying potential efficiency improvements. Customers receive detailed recommendations for both immediate repairs and long-term system maintenance to optimize performance and longevity.
Heating Installation
We design and implement complete heating system installations for new construction and retrofit projects. Our team offers energy consumption analysis to select appropriately sized equipment meeting California's energy efficiency standards. The installation process includes ductwork evaluation, thermostat integration, and final system calibration to ensure consistent temperature control across residential or commercial spaces.
Indoor Air Quality
Our IAQ solutions include whole-home air purification systems, humidity control devices, and ventilation upgrades. Through comprehensive air quality assessments, we identify particulate contamination sources and recommend filtration systems that remove allergens and pollutants. The service includes professional installation of UV air sanitizers and HEPA filtration systems to improve respiratory health conditions for building occupants.
Commercial HVAC
Tailored HVAC solutions for commercial and light industrial facilities include VRF system design, rooftop unit maintenance, and energy recovery ventilation. Our technicians work with business owners to develop preventive maintenance schedules that minimize equipment downtime while maximizing energy efficiency through programmable control systems.
24/7 Emergency Service
HVAC emergencies receive immediate response during regular business hours and until 8 PM daily. Our on-call technicians carry essential replacement components to address common system failures, with after-hours pricing clearly communicated prior to service commencement. Emergency service includes system diagnostics, temporary fixes, and scheduled follow-up repairs.
Questions
What HVAC services do you offer?
We provide complete residential and commercial HVAC solutions including system installation, repair, and maintenance. This includes air conditioners, heating systems, ductless mini-splits, and indoor air quality improvements.
Do you offer emergency HVAC service?
Yes, we provide emergency HVAC repair service until 8 PM daily. Our technicians maintain stock of common replacement parts to address urgent system failures promptly.
Are financing options available?
We offer financing programs for qualifying HVAC system replacements and installations. Contact our office for current promotions and application details.
What areas do you service?
We primarily serve Modesto, CA and surrounding Central Valley communities. This includes residential neighborhoods and commercial developments within a 30-mile radius of our main office.
Are your technicians certified?
All HVAC work is performed by NATE-certified technicians who complete ongoing manufacturer training programs. Our CSLB-licensed contractors maintain current industry certifications for refrigerant handling and system installation.
What rebates are available?
We provide assistance with federal, state, and utility-sponsored energy efficiency rebates for qualifying HVAC installations. Our team helps verify eligibility and complete required documentation.
Reviews (6)
Leo Alvarez
May 09, 2022 Report
Very efficient and reliable people, they fix my a/c the same day I call, Felipe the technician was very knowledgeable about the systems he found the problem within minutes after he arrived to my house, also was very puntual, the window that they give me was from 2-5 Felipe arrived at 2:05 pm and it was done before 3 pm I was very impressed by how he was able to fix it very quickly. Thank you very much guys definitely recommend it to all.
Freddy Bernal
Apr 12, 2022 Report
Crew of three were very professional knowledgeable, and friendly. Would recommend to friends and family. Great experience. Services:Install thermostat, Thermostat installation, Heating system installation, Install AC
Guy Miligi
Mar 26, 2022 Report
Amazing service. Always on time and priced very competitively. The owner came out to check on everything as install was happening and at the end to inspect work. Highly recommend this company. Services:HVAC duct & vent installation, Installation, Heating system installation, Thermostat repair, Install AC
Philip Magner
Mar 11, 2022 Report
Staff is knowledgeable and takes the time/effort to go beyond the routine task. I would highly recommend Dycus. They have installed a new system and replaced dryer vent for us over the last two years. Services:HVAC duct & vent repair, Heating system installation
Hank Rodriguez Hill
Feb 23, 2022 Report
Really nice receptionist, and very professional seemed to have some knowledge in hvac as well which helped answer my questions
Carl Wiegand
Oct 25, 2021 Report
Great service five stars this company knows how To take care of business. One day service everyone was friendly and wanted To make sure the customer was taken care of. Kayla, Doug and Dave D. Thank you so much! Carl and Roxane W.