HVAC Contractor in Meriden, CT

G. J Giacco is your premier sales and service provider for HVAC in Meriden and throughout Central Connecticut. Our experienced and licensed crew has the training and skills to complete any project for all your commercial or residential HVAC equipment. We service and install all major brands including American Standard, Heil, Carrier, Rheem, Ruud, Trane, Goodman and more. We install ductless mini split heat pumps from Daikin, Mistubishi and LG. We will design and install your entire HVAC system including ventilation. As HVAC experts, we are happy to service and install oil, gas, propane and electric heating systems. We also install and service tankless water heaters and combi-boilers. We are a Certified Navien service specialist If you are looking for a HVAC contractor to convert your oil heating system to gas, contact us today for a free estimate.


The East coast climate can be unforgiving and it is important to be prepared for extreme weather. Whether your equipment has a catastrophic breakdown or just needs a minor repair, we will be there in a timely manner and get your equipment back in working condition. We also specialize in developing maintenance programs to keep your systems working properly, avoiding down time and operating at optimal efficiency saving you money and time.


The modern homes and businesses of today are becoming increasingly more efficient. We are your local experts in the modern technology of all HVAC systems. Our expert team will work closely with to ensure you are aware of all your options and help guide you through the decision-making process. We work with you every step of the way from sales to installation and provide you with the most cost effective and energy efficient systems for your home or business.


  • Heating
  • Air Conditioning
  • Residential
  • Commercial
  • Repair
  • Installation
  • Gas & Oil


  • Home Heating Oil
  • Propane