About Us

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Building Services Specialists
About Therra

Therra is a Baltimore-based specialty mechanical contractor, founded in 2025. Our name blends “Thermal”—reflecting our expertise in energy systems—and “Terra,” symbolizing our commitment to sustainability.

We combine deep technical knowledge with a passion for customer service, delivering solutions that optimize comfort, energy efficiency, and operational resilience for homes, businesses, and industrial facilities.
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Our Credentials

We hold industry recognized certification and licenses to guarantee compliance and quality:

EPA Section 608 - Certified for safe refrigerant handling.

HVACR Master Contractor (MD) - Licensed to perform all permit required work within the jurisdiction.

Electrical Master Contractor (MD) - Licensed to perform permit required work within the jurisdiction.

1st Grade Stationary Engineer (MD) - Licensed to operate and service all levels of high-pressure vessels.

OSHA (Occupational health and Safety administration) - We are committed to general industry and construction site safety standards. 
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Our Partners

Dominguez Design Media

KLG Services

American Society of Power Engineers 
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Questions & Answers
Frequently Asked Questions
 


What is the average life of an HVAC system?
Most traditional HVAC systems last 15–20 years when properly maintained. While occasional repairs are normal, routine care significantly extends equipment life. THERRA’s industry‑standard semi‑annual service helps keep your system running efficiently and reliably for years to come.

Why should you routinely perform electrical maintenance?
Electrical failures are a leading cause of home fires in the U.S., with approximately 46,700 incidents each year according to NFPA data. Regular inspections greatly reduce this risk and help identify issues before they become costly or dangerous.
 

What is the recommended inspection interval for electrical systems?
  • Every 3–5 years for newer electrical systems
  • Every 2–3 years for systems with high‑demand equipment (e.g., EV chargers, large HVAC loads)
  • Every 1–2 years for older homes or facilities

THERRA provides comprehensive electrical services to keep your property safe and compliant.

How can your facility ensure compliance with all legal requirements?
In Maryland, facility compliance is primarily governed by COMAR (Code of Maryland Regulations). However, local jurisdictions may enforce additional requirements, including:
 
  • National Electrical Code (NEC) for electrical installations
  • International Mechanical Code (IMC) for mechanical systems
  • Occupational Safety and Health Administration (OSHA) standards for workplace safety
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Navigating these regulations can be complex, but THERRA offers free compliance consultations to help ensure your facility meets all applicable legal and safety standards.

Schedule an Appointment

Contact us today for a free estimate or to request service.
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