HHB Engineers, P.C.

Recognized Leader in Mechanical Engineering

Website

About the firm

HHB Engineers, P.C. is a mechanical engineering consulting practice founded in 1983 and headquartered in Tuscaloosa, Alabama. It specializes in the design and analysis of HVAC, plumbing, fire protection, and building automation systems for the architectural, engineering, and construction industry. The practice has deep experience in complex and constrained building types, including federal courthouses, athletic stadiums, historic structures, healthcare facilities, and higher education campuses, performing work throughout the Southeastern United States.

Established
1983
Team
Small
Firm type
Mechanical Engineering · Fire Protection Engineering · Automation & Controls · MEP

Credentials

LEED AP BD+C · Certified Commissioning Agent

People

Barbara Hattemer McCraryPresident & Mechanical Engineer

Tom L. HattemerFounder & Mechanical Engineer

B. Seth MichaelMechanical Engineer

Cuong TranMechanical Engineering Staff

Capabilities

HVAC Design

Service website

Provides high-performance heating, ventilation, and air conditioning solutions tailored to structural and architectural constraints. Services cover system selection, lifecycle cost analysis, and custom equipment integration for complex replacements and upgrades.

  • Air Handling System Replacements and Upgrades
  • Humid Area and Coastal Design
  • Indoor Air Quality Analysis and Upgrades
  • Desiccant Dehumidification Systems
  • Air Distribution System Analysis
  • Variable Air Volume System Design and Upgrades
  • Dedicated Outside Air Pre-Conditioning Systems
  • Exhaust Systems and Heat Recovery
  • Fume Hood and Welding Exhaust Systems
  • Chilled Water and Hot Water Hydraulics
  • Central Utility and Campus Central Plants
  • Variable-Primary Chilled and Hot Water Systems
  • Steam Boilers and Steam Distribution
  • Steam Humidification
  • Smoke Evacuation and Control
  • Water-Source Heat Pump Systems
  • Geothermal, Ground Source, and Lake Loop Systems
  • Variable Refrigerant Flow Systems
  • Industrial Process Cooling and Ventilation

Plumbing Design

Service website

Delivers comprehensive plumbing engineering, including high-efficiency water heating, low-demand fixture integration, and specialized piping distribution.

  • Solar Hot Water Systems
  • Acid Waste and Vent Designs
  • Domestic Hot, Cold, and Recirculation Systems
  • Deionized and Specialty Water Systems
  • Rainwater Harvesting and Catchment
  • HVAC Condensate Collection
  • Non-Potable Water Systems
  • Anesthesia Vacuum Systems
  • Campus Natural Gas Distribution
  • Fuel Storage and Piping Systems
  • Medical Air, Vacuum, and Oxygen Systems
  • Bulk Oxygen Facilities
  • Specialized Gas Systems

Fire Protection Design

Service website

Designs life-safety and suppression systems led by registered specialists to meet building codes and protective requirements.

  • Standpipe Systems
  • Fire Pumps
  • Wet, Dry, and Pre-Action Sprinkler Systems
  • Clean Agent Fire Suppression Systems

Sustainable Design / LEED Design

Service website

Guides projects through the USGBC LEED certification process, performing energy modeling, calculations, and official documentation.

  • Energy Modeling for LEED Certification
  • Mechanical and Plumbing LEED Calculations
  • USGBC Certification Documentation
  • LEED Online Template Coordination

BIM Modeling / Revit MEP

Service website

Utilizes advanced 3D building information modeling to support coordination, clash detection, and preparation of contractor shop drawings.

  • Revit MEP Modeling
  • Clash Detection Services
  • AutoCAD MEP 3D Modeling

Industries

Sports & Recreation · Commercial · Education · Government · Healthcare · Historic Preservation · Federal · Justice & Corrections · Laboratories · Defense

Projects

Vance Federal Building and Courthouse Renovation

Birmingham, AL · Federal · Client: GSA

Project details

Completed mechanical, electrical, plumbing, and fire protection engineering of record for the complete renovation of a historic 178,000 SF five-story federal building. The project achieved LEED Gold v3 certification.

Bryant Denny Stadium Renovations and Additions

Tuscaloosa, AL · Sports & Recreation · 2020 · Client: University of Alabama

Project details

Provided mechanical, plumbing, and fire protection engineering for a $110M expansion and renovation at the University of Alabama, adding premium suites, clubs, loge boxes, and updated locker facilities.

State Capitol Building HVAC Replacement

Montgomery, AL · Government · Client: State of Alabama

Project details

Served as Prime AE for a $6.8M phased mechanical upgrade, replacing 43 custom air handling units in a historic 1850s capitol building while maintaining occupancy.

Crimson Reserve Golf Facility

Tuscaloosa, AL · Sports & Recreation · 2024 · Client: University of Alabama

Project details

Delivered mechanical engineering services for a state-of-the-art collegiate practice facility at the University of Alabama.