Enhance Efficiency with Custom Ductwork

Book Custom Ductwork Services in Baltimore County

Every home is unique, and so is its ductwork. At Diagnostic Heating and Air Conditioning, we specialize in fabricating and installing custom duct systems to ensure optimal airflow, energy efficiency, and comfort in every room in Randallstown, Ellicott City, Owings Mills and surrounding areas. You’ll notice the difference in air quality and system performance when your ductwork is tailored to your home’s specific needs.


In addition to custom ductwork, we offer tailored HVAC maintenance plans to keep your HVAC system running at its best. Our maintenance services include seasonal tune-ups, filter replacements, performance checks, and preventative repairs. By creating a schedule that fits your home’s needs, we help prevent costly breakdowns and extend the life of your system. Trust us to keep your home comfortable and efficient year-round.


Secure your custom ductwork or maintenance plan today and enjoy a more efficient home.

HVAC ductwork in an attic. Insulated silver ducting, yellow insulation at the end, supported by metal straps.

What’s Included in This Service

Our custom ductwork and maintenance plans are designed to meet the specific needs of your home. We focus on delivering high-quality service and ensuring your HVAC system operates efficiently. Here’s what you can expect from our services:


  • In-house fabrication of custom duct systems
  • Optimal airflow and energy efficiency
  • Seasonal tune-ups for peak performance
  • Regular filter replacements and performance checks
  • Preventative repairs to avoid costly breakdowns


Plan your custom ductwork or maintenance service with us and optimize your home’s comfort.