CJL Engineering: HVAC, Plumbing, and Fire Protection Experts in Derby CT

For over 45 years, CJL Engineering has been a trusted engineering firm serving Derby CT and surrounding towns. They provide licensed solutions for HVAC, plumbing, and fire protection. The team offers 24-hour emergency service for heating and cooling systems, making them a reliable choice for both sudden breakdowns and planned projects.

The company works with a skilled team of mechanics who are EPA certified. They handle both residential and commercial jobs, from fixing a home furnace to designing systems for local businesses.

Key Services for Homeowners and Businesses

CJL Engineering in Derby CT focuses on the essential systems that keep buildings safe and comfortable. Their main services include:

  • HVAC Installation and Repair: They install new systems and fix existing ones. This includes gas heat and heat pump specialists.
  • Fire Protection Services: They design and maintain systems to protect properties from fire.
  • Plumbing Inspection: They check plumbing systems to spot problems early.

Whether it's a noisy air conditioner in summer or a heater that won't start on a cold Derby night, they have the expertise to help.

Areas Served

CJL Engineering proudly serves several Connecticut communities. Their service area includes Shelton CT, Seymour CT, Ansonia CT, and Derby CT. They understand the local housing styles and weather patterns. This knowledge helps them recommend the right systems for older homes or newer constructions in the area.

Company History

The company was established in 2009, building on decades of prior engineering experience. Over time, they have grown a reputation for honest workmanship and fair pricing. They started by focusing on core mechanical and electrical design services and expanded to include full HVAC-R solutions.

Leadership and Local Presence

The leadership at CJL Engineering brings deep technical knowledge to every job. Their mechanics are not only certified but also understand the practical needs of local residents. The company is actively involved in serving the community, providing reliable engineering support when it's needed most.

Specialties & Highlights

What makes CJL Engineering stand out in Derby CT?

  • 24/7 Emergency HVAC-R Service: They are available around the clock for urgent heating and cooling issues.
  • EPA Certified Mechanics: Their technicians meet high national standards for handling refrigerants.
  • Honest Pricing and Work: They focus on clear communication and straightforward costs.
  • Gas Heat and Heat Pump Expertise: They specialize in these common and efficient heating systems.
  • Licensed Engineering Firm: Their work is backed by professional licenses in Connecticut.

Why Locals Choose CJL Engineering

Residents and business owners in the Derby area turn to CJL Engineering for a few simple reasons. They offer a long-standing local presence with over 45 years of combined experience. Their commitment to 24-hour emergency service means help is always available during a crisis. Most importantly, they have built a name as an honest company that does quality work at great prices. For reliable HVAC, plumbing, and fire protection services, CJL Engineering in Derby CT is a trusted partner.

Contact Information

CJL Engineering

: 33 Elizabeth St Ste 301 A, Derby, CT 6418

: (203) 732-8876

: http://www.cjlengineeringinc.com

Business Services

  • Fire protection services
  • HVAC installation or replacement
  • HVAC system repair
  • Plumbing inspection

Business Location & Hours



Mon:9:00 AM - 5:00 PM
Tue:9:00 AM - 5:00 PM
Wed:9:00 AM - 5:00 PM
Thu:9:00 AM - 5:00 PM
Fri:9:00 AM - 5:00 PM
Sat:Closed
Sun:Closed




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