Business Details
Emergency
services
Your Trusted Milford HVAC Experts
Onofreo Home Comfort Systems has served Connecticut residents for over a decade with comprehensive heating, ventilation, and air conditioning solutions. Our NATE-certified technicians, trained as Bryant Factory Authorized Dealers and Mitsubishi Diamond Dealers, deliver precision installations, repairs, and maintenance for residential and light commercial systems. We specialize in advanced technologies like geothermal heating, ductless mini-splits, and smart thermostat integration while maintaining a 5-star service reputation.Our in-house sheet metal fabrication ensures custom ductwork quality, and our emergency response team operates 24/7 across the shoreline region. With factory-trained expertise and transparent communication, we provide free system evaluations and prioritize long-term client relationships through honest recommendations and meticulous workmanship.
Services
Heating Installation
Air Conditioning Repair
Indoor Air Quality
Ductless HVAC
Geothermal Systems
Commercial HVAC
Boiler Services
Water Heater Installation
System Maintenance
Oil to Gas Conversion
Highlights and features
- Factory-trained technicians for all major HVAC brands
- 24/7 emergency service with rapid response times
- Free system evaluations and transparent pricing
- Proprietary ductwork fabrication for superior airflow
- Specialized geothermal and ductless system expertise
Associations and certifications
- NATE Certified
- Bryant Factory Authorized Dealer
- Mitsubishi Diamond Dealer
What people say
24/7 emergency service
Professional installations
Clear explanations
Competitive pricing
Quick response times
Services
Heating Installation
Our heating installations combine Bryant-certified expertise with custom system design. We perform precise load calculations and obtain all necessary permits for furnace, boiler, and hybrid system replacements. Factory-trained technicians ensure proper sizing and integration with existing infrastructure while explaining all equipment options and efficiency ratings. Projects typically complete within three days with included post-installation cleaning and tune-up services.
Ductless HVAC
As Mitsubishi Diamond Dealers, we install energy-efficient ductless systems with zoned temperature control. Our team handles multi-room installations using inverter technology for quiet operation and energy savings. Free consultations include system design recommendations and rebate availability assessments. Projects feature same-day completion and include thermostat programming instruction for optimal system utilization.
Geothermal Systems
We specialize in geothermal system design, installation, and maintenance for new construction and retrofits. Our NATE-certified technicians optimize ground loop configurations and heat pump selection for maximum efficiency. Services include thermal conductivity testing, system performance optimization, and maintenance contracts that ensure long-term reliability of earth-coupled heating and cooling solutions.
Emergency Repairs
24/7 emergency service addresses critical heating and cooling failures with rapid response times. Our standby technicians carry common replacement parts and use diagnostic tools to resolve issues efficiently. Emergency service includes transparent pricing, repair explanations, and follow-up maintenance recommendations to prevent future system failures during extreme weather conditions.
Indoor Air Quality
We diagnose and resolve air quality issues through whole-home humidifiers, HEPA filtration systems, and ventilation upgrades. Our seven-year experience with IAQ diagnostics includes customized solutions for allergy sufferers and moisture control specialists. Services feature post-installation air quality testing to verify contaminant reduction and humidity level optimization.
People
Mark Onofreo
Owner
With over 20 years in HVAC contracting, Mark leads system design consultations and ensures operational excellence. He oversees permit acquisition and complex installations while maintaining direct client communication throughout projects. His hands-on approach includes post-installation follow-ups and team training on emerging technologies.
Kelly
Sales Consultant
Specializing in oil-to-gas conversions, Kelly coordinates seamless project transitions from initial assessment to completion. She manages rebate paperwork processing and client education about system benefits. Her decade of experience includes addressing complex HVAC requirements for shoreline properties.
Anthony
Senior Technician
Certified in multiple HVAC specialties, Anthony handles complex repairs and system diagnostics. He performs capacitor replacements, refrigerant level adjustments, and emergency troubleshooting with clear client communication about repair processes. His 15-year tenure includes mentoring new technicians on best practices.
Shane
Sales Specialist
Shane provides detailed system comparisons during consultations, focusing on long-term efficiency gains. He explains technical specifications in accessible terms and addresses client concerns about installation impacts. His patient approach has earned recognition in multiple customer testimonials.
Jason
Lead Installer
Jason executes complex system replacements with meticulous attention to detail. His four-day project completions include basement organization and equipment placement optimization. He educates clients on new system features and ensures workspaces are left cleaner than found.
Questions
Do you offer same-day HVAC repairs?
Yes, our 24/7 emergency service responds promptly to critical heating and cooling failures with most repairs completed the same day.
Are financing options available?
Yes, we offer financing through Energize CT for system replacements with approved credit.
What areas do you service?
We serve the entire Connecticut shoreline from Rhode Island to New York, including Milford, Stratford, and Trumbull.
Do you install ductless systems?
Yes, as Mitsubishi Diamond Dealers, we specialize in ductless mini-split installations for zoned temperature control.
Are rebates available for new systems?
Yes, we help clients maximize rebates for energy-efficient HVAC upgrades and handle paperwork processing.
Do you provide free estimates?
Yes, we offer free consultations and system evaluations for all major HVAC installation projects.
