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    • AC Services
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    • AC Services
      • AC Repair
      • AC Installation
      • AC Maintenance
    • Heating Services
      • Heating Repair
      • Heating Maintenance
      • Professional Heater Installation
    • Furnace Services
    • Boiler Repair
    • Ductwork Design
    • Air Purification
    • Humidifier Installation
  • Service Area
    • Heating and Cooling in Beltsville, MD
    • Heating and AC in Bethesda, MD
    • Heating and AC in Germantown, MD
    • Heating and AC in Laurel, MD
    • Heating and AC in Olney, MD
    • Heating and AC in Potomac, MD
    • Heating and AC in Rockville, MD
    • HVAC Service in Silver Spring, MD
    • Heating and AC in Washington, DC
  • Specials
  • Maintenance Contract
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  • About Us
    • Blog
    • Financing
    • Testimonials
    • Gallery
    • Careers
  • Services
    • AC Services
      • AC Repair
      • AC Installation
      • AC Maintenance
    • Heating Services
      • Heating Repair
      • Heating Maintenance
      • Professional Heater Installation
    • Furnace Services
    • Boiler Repair
    • Ductwork Design
    • Air Purification
    • Humidifier Installation
  • Service Area
    • Heating and Cooling in Beltsville, MD
    • Heating and AC in Bethesda, MD
    • Heating and AC in Germantown, MD
    • Heating and AC in Laurel, MD
    • Heating and AC in Olney, MD
    • Heating and AC in Potomac, MD
    • Heating and AC in Rockville, MD
    • HVAC Service in Silver Spring, MD
    • Heating and AC in Washington, DC
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Blog

HVAC Ductwork Principles Your Contractors Should Know

Your home’s comfort largely depends on its HVAC ductwork. This hidden network of air ducts plays a crucial role in distributing heated and cooled air

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August 13, 2024

What Indoor Humidity Levels Are Comfortable?

Ever wake up in the middle of the night feeling like you can barely breathe? Or maybe you’ve noticed static shocks clinging to you every

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July 1, 2024
A close-up of an outdoor HVAC unit.

The Ultimate Spring Cleaning Checklist for Your HVAC System

As winter fades and the gentle warmth of spring shows itself in a few 70 and 80-degree Fahrenheit days, it’s a reminder that the seasons

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April 17, 2024
Ductwork and pipes along a ceiling.

Ductwork Design Mistakes That Experts Can Prevent

Ductwork serves as the circulatory system of your home or building. But those intricate elements of ductwork you see above your property aren’t something that

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February 21, 2024
The inside of ductwork.

The Indicators of Ineffective Ductwork Design

Your home’s ductwork might be out of sight, but it should never be out of mind. This network of tubes in your walls, floors, and

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January 16, 2024
Plants and a lantern situated near a window.

6 Ways to Prevent Indoor Air Pollution

Did you know that according to the Environmental Protection Agency, the air inside our homes can be up to five times more polluted than outside

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November 2, 2023
Six AC units installed outdoors.

What Is a Good SEER Rating for My New AC?

As we brace ourselves for another sweltering summer, the efficiency of our air conditioning units becomes a topic of great importance. One key factor that

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September 5, 2023
a woman in an orange shirt on the phone adjusting her HVAC system

4 HVAC Troubleshooting Tips Every Homeowner Should Know

There’s nothing better than spending time with family during the winter — and nothing worse than having an HVAC system that refuses to work on

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December 23, 2022
An HVAC tech words on a new duct installation.

Should I Insulate My Old Ducts or Install New Ones?

The energy needed for heating and cooling a home makes up a large percentage of electricity bills, so finding ways to improve HVAC system efficiency

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October 15, 2022
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WHAT OUR CUSTOMERS ARE SAYING

"Service was excellent"

After go online and search for hvac companies I decided to go for JC & JC Hvac. The price was very good compare with other companies’ estimates. Their services was excellent. They really did a good job!!
Karla Cruz

"Experts in the field"

Professional service. Experts in the field. Go to for source for all your HVAC needs.
Youssef Azmy

"Gave me a great price"

A friend from work recommended this company when my ac unit broke. I made an appointment and they arrived on time. They did a thorough inspection and not only gave me a great price. They got the job done very fast. I will be using them in the future and would recommend them to my family and friends.
Ally Gamez

"They came out within 1 hour!"

Quick, professional service. They came out on the same day, within 1 hour! They know what they’re doing. Definitely recommend them!
Mohammad Abagi
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Ductwork Design & Install

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