FAQ and Glossary

Glossary of Terms – HVAC

Air Handler (AHU)

Conditions and circulates air. Typically includes a blower, coils, filters, and dampers.

BTU (British Thermal Unit)

A measure of heat; used to rate HVAC equipment capacity.

Fan Coil Unit (FCU)

Compact unit that heats or cools a space using a fan and a coil.

HEPA Filter

Removes 99.97% of particles down to 0.3 microns — critical in cleanroom HVAC.

HVAC

Heating, Ventilation, and Air Conditioning — systems managing indoor air quality and temperature.

Make-Up Air Unit (MAU)

Brings in fresh air to replace exhausted air — crucial in pressurized spaces.

Plenum

Space for air distribution (often above ceilings); part of the HVAC system.

Static Pressure

Resistance to airflow within ducts; too much can impact efficiency and damage equipment.

VAV Box (Variable Air Volume)

Regulates airflow to individual zones for temperature control and energy savings.

Ventilation

Brings fresh air into buildings and removes stale air — important for health and safety.

Glossary of Terms – Mechanical

Balancing (Air/Water)

The process of adjusting system flow rates for comfort, efficiency, and performance.

Commissioning

Startup and verification process for mechanical systems to ensure performance meets design intent.

Condensate Line

Drain line that removes water produced during cooling or dehumidification.

Control Valve

Regulates system performance by adjusting flow automatically or manually.

Heat Exchanger

Transfers heat from one medium to another without mixing them — used in HVAC, domestic water, and process piping.

MEP

Mechanical, Electrical, and Plumbing — the backbone of modern building systems.

P-Trap

A curved pipe in plumbing that prevents sewer gases from entering the building.

Submittals

Documents detailing materials, equipment, and installation methods for approval before use.

Tagging

Labeling each piece with project, system, and location info for streamlined installation.

Turnover Package

All closeout documentation: O&M manuals, warranties, testing results, and certifications.

Valve

Controls the flow of liquids or gases. Includes isolation valves, check valves, balancing valves, etc.

Glossary of Terms – Sheet Metal Fabrication

Brake (Press Brake)

A machine that bends sheet metal into desired shapes and angles.

Ductwork

The primary application of sheet metal in HVAC; distributes air throughout a building.

Fabrication

Shop-based production of system components for better accuracy and faster install.

Gauge

The thickness of sheet metal. Lower numbers = thicker metal.

Gore

A curved section of duct, typically made by joining smaller angled pieces to form an elbow or offset.

G90

Galvanized steel with 0.90 oz of zinc coating per square foot (total both sides). Commonly used in ductwork for its strong corrosion resistance and durability in demanding environments.

Pittsburgh Seam

A type of joint used to connect duct sections securely. Common in rectangular ductwork.

Plasma Cutting

Precision method for cutting sheet metal using a high-temperature plasma torch.

Sheet Metal

Flat metal that’s cut, bent, and joined into components like ducts, enclosures, and custom parts.

Spiral Duct

Round duct with a continuous spiral seam — strong, leak-resistant, and efficient to install.

Standing S/Slip & Drive

Standard methods for connecting rectangular ductwork in the field.

Stiffener

Added reinforcement to prevent duct collapse or vibration under pressure.

Glossary of Terms – Maintenance

Refrigerant

A chemical compound used in HVAC systems to absorb and release heat. Leaks or improper charge levels reduce efficiency and cooling capacity.

Refrigerant Charge

The exact amount of refrigerant required for proper operation. Verified through gauge readings, subcooling, and superheat.

Subcooling

Measures how much the liquid refrigerant has cooled below saturation. Helps verify proper refrigerant charge.

Superheat

Measures the heat absorbed by refrigerant before it returns to the compressor. Prevents liquid from damaging the compressor.

Delta T

The difference between supply and return air temperatures. Used to assess system performance.

Filter Dryer

A component that removes moisture and contaminants from refrigerant lines. Should be replaced after major service events.

Coil Cleaning

Removing buildup from coils to maintain efficient heat transfer. Part of regular maintenance.

PM Checklist

A list of tasks performed during scheduled preventive maintenance visits, including inspections, readings, and adjustments.

Amperage Check

Tests how much current a motor or compressor draws. Helps identify overloading or failing parts before they break.

High Head Pressure

When refrigerant pressure in the condenser is too high. Can be caused by dirty coils, failed fans, or overcharge.

Emergency Service Protocol

The process for addressing critical issues outside regular visits, often with priority scheduling for contract clients.

Leak Detection

Finding and repairing refrigerant leaks using tools like electronic sniffers or dye kits. Required for EPA compliance and system reliability.

Clean Rooms FAQs

Can you modify an existing space into a clean room, or do you only build new ones?

Yes, we can retrofit existing spaces into fully compliant clean rooms or design and build them from the ground up.

How do you ensure compliance with ISO and FDA clean room standards?

We follow strict industry regulations, including ISO 14644 and FDA guidelines, ensuring proper filtration, airflow control, and contamination prevention.

Do you provide clean room validation and certification?

Yes, we can coordinate validation and testing services to ensure your clean room meets required industry standards.

What HVAC and filtration systems do you install for clean rooms?

We install HEPA and ULPA filtration, airlocks, and pressurization controls to maintain a controlled environment.

Can you integrate clean room designs with existing building systems?

Yes, we ensure seamless integration with existing HVAC, electrical, and plumbing systems while maintaining compliance.

Do you provide modular clean room solutions?

Yes, we offer modular clean room installations for flexible and scalable solutions.

What industries do you specialize in for clean room installations?

We work with pharmaceutical, biotech, semiconductor, and research industries that require controlled environments.

Can you handle clean room renovations without disrupting operations?

Yes, we carefully plan upgrades and retrofits to minimize downtime and contamination risks.

How do you control contamination risks during construction?

We use containment barriers, negative air pressure, and strict clean protocols to prevent contamination.

Do you provide post-installation maintenance and support?

Yes, we offer maintenance services to keep your clean room operating at peak efficiency.

Critical Environments FAQs

What types of critical environments do you work in?

We specialize in laboratories, healthcare facilities, data centers, pharmaceutical manufacturing, and other controlled environments requiring precise environmental conditions.

Do you provide design-build services for critical environments?

Yes, we offer full-service design-build solutions to meet exact project specifications and regulatory requirements.

How do you minimize downtime when working in a live critical environment?

We coordinate phased construction schedules, use off-site prefabrication, and work off-hours to limit operational disruptions.

Can you upgrade existing critical environments to meet new regulations?

Yes, we specialize in retrofitting facilities to meet updated compliance standards while maintaining operational continuity.

Do you install redundant systems for mission-critical facilities?

Absolutely! We design and install redundant HVAC, electrical, and plumbing systems to ensure continuous operation.

How do you ensure air quality and environmental control in critical spaces?

We implement advanced HVAC, pressurization, and filtration systems to maintain strict environmental conditions.

What industries do you specialize in for critical environment projects?

We serve industries such as biotech, pharmaceutical, clean manufacturing, and healthcare that require strict environmental control.

Can you provide emergency service if an issue arises in a critical environment?

While we do not offer 24/7 emergency service, we provide rapid response support during business hours.

How do you coordinate with other trades to prevent system conflicts?

We use BIM coordination and conduct regular trade meetings to ensure seamless integration with other contractors.

Do you offer long-term maintenance contracts for critical environments?

Yes, we provide scheduled maintenance programs to keep your systems running reliably and in compliance.

Process Systems FAQs

What types of process systems do you install?

We install high-purity piping, chemical handling systems, compressed air systems, and specialized process piping for industrial applications.

Do you provide design services for process piping?

Yes, we offer design-build solutions to ensure optimal performance and compliance.

Can you integrate process systems with automation and controls?

Absolutely! We coordinate with automation teams to ensure seamless control system integration.

What industries do you specialize in for process system installations?

We work in pharmaceuticals, manufacturing, food and beverage, and research facilities that require high-precision process systems.

How do you ensure compliance with industry regulations?

We follow ASME, FDA, and industry-specific codes, ensuring every system meets safety and performance standards.

Do you provide prefabricated process piping solutions?

Yes, we prefabricate piping assemblies to reduce installation time and improve quality control.

Can you upgrade or retrofit existing process systems?

Yes, we can modify and enhance existing systems to improve efficiency and compliance.

How do you ensure leak-free and high-purity installations?

We use precision welding techniques, rigorous testing, and certified high-purity materials to ensure leak-free systems.

What materials do you work with for process piping?

We work with stainless steel, copper, polypropylene, and other specialty materials suited for high-purity and industrial applications.

Do you provide testing and commissioning for process systems?

Yes, we conduct thorough pressure testing, flushing, and validation before system handover.

Mechanical Systems FAQs

Do you handle both new system installations and system upgrades?

Yes, we install new mechanical systems and upgrade existing ones.

Can you assist with HVAC system design and engineering?

Yes, we offer design-build services and work with engineers for optimal system performance.

Do you install both air and hydronic mechanical systems?

Yes, we handle air distribution, chilled water, steam, and other hydronic systems.

How do you ensure HVAC systems meet energy efficiency standards?

We use high-efficiency components and design solutions to minimize energy consumption.

Can you integrate HVAC controls and automation?

Yes, we can integrate building automation for optimized performance.

Do you offer maintenance services after installation?

Yes, we provide ongoing service and preventive maintenance plans.

How do you coordinate mechanical installations with other trades?

Our BIM modeling and coordination meetings ensure smooth integration with other trades.

What industries do you specialize in for mechanical system installations?

We specialize in healthcare, laboratories, pharmaceuticals, and other critical environments.

Do you provide fast-track or accelerated installation services?

Yes, we can accommodate tight schedules with prefabrication and efficient field installation.

How do you ensure indoor air quality in your mechanical system designs?

We design systems with proper filtration, ventilation, and humidity control.

Plumbing Systems FAQs

Do you install both standard and specialized plumbing systems?

Yes, we handle everything from standard piping to medical gas systems.

Can you handle medical gas or lab plumbing installations?

Absolutely! We are experienced in medical and laboratory plumbing installations.

Do you provide design-build plumbing services?

Yes, we can take your project from concept to completion.

How do you coordinate plumbing work with other trades on-site?

Through BIM coordination and regular collaboration with all trades.

Can you fabricate prefabricated piping assemblies?

Yes, we offer prefabricated piping solutions to streamline installation.

How do you ensure plumbing code compliance in complex environments?

We adhere to all local, state, and federal plumbing codes.

What materials do you work with for plumbing installations?

We install copper, PVC, CPVC, PEX, and stainless steel piping.

Do you provide leak detection and pressure testing for plumbing systems?

Yes, we conduct thorough testing to ensure system integrity.

How do you prevent corrosion in industrial plumbing systems?

We use corrosion-resistant materials and coatings where necessary.

Can you upgrade existing plumbing systems to meet new standards?

Yes, we can retrofit systems to comply with updated codes and efficiency requirements.

In-House Fabrication FAQs

What types of sheet metal components do you fabricate?

We fabricate ductwork, custom enclosures, supports, and specialty components for HVAC and mechanical systems.

Can you fabricate custom components to meet unique project needs?

Yes! Our team can create custom sheet metal solutions based on your specifications.

What’s the typical turnaround time for fabricated components?

Lead times vary, but our in-house capabilities allow for faster production than outsourced fabrication.

Do you handle both ductwork and other sheet metal assemblies?

Yes, we fabricate ductwork, plenums, louvers, and other specialized components.

Can you fabricate stainless steel or specialty materials?

Yes, we work with stainless steel, aluminum, and other specialty materials.

How do you ensure the quality and precision of fabricated components?

We use advanced CNC equipment and thorough quality control to ensure precision.

Do you offer delivery services for fabricated parts?

Yes, we can deliver directly to your job site or arrange for pickup.

Can you fabricate based on our shop drawings, or do you need to create them?

We can work from your shop drawings or generate our own.

What are the advantages of using your in-house fabrication versus outsourcing?

Faster turnaround, better quality control, and cost savings through direct production.

Do you provide pre-insulated ductwork options?

Yes, we can provide pre-insulated ductwork for efficiency and ease of installation.

BIM Coordination FAQs

Can you work with our existing BIM models, or do you only create new ones?

We can do both! Whether you need modifications to an existing BIM model or a new model created from scratch, our team can integrate seamlessly into your workflow.

How do you handle clash detection with other trades?

We perform comprehensive clash detection and coordination, ensuring conflicts between MEP, structural, and architectural elements are resolved before construction begins.

What BIM software do you use, and can you work with our platform?

We primarily use Revit, Navisworks, and AutoCAD but can adapt to other platforms depending on project requirements.

Do you provide coordination services with other trades and contractors?

Yes, we collaborate closely with all stakeholders to ensure a streamlined, conflict-free installation process.

Can you generate shop drawings from the BIM model?

Absolutely! We create detailed shop drawings to ensure fabrication and installation accuracy.

How detailed are your BIM models, and can they be used for prefabrication?

Our models range from LOD 300 to LOD 500, making them suitable for prefabrication, clash detection, and full project coordination.

Do you provide BIM services for both design and construction phases?

Yes, we support projects at every stage, from early design development through final construction.

How can your BIM modeling help reduce rework and installation errors?

Our clash detection and detailed modeling eliminate conflicts before they occur, reducing costly on-site rework.

Can you provide 3D visualization for client presentations?

Yes! We can create high-quality 3D renderings and animations for project presentations and stakeholder approvals.

What’s the turnaround time for BIM modeling on a typical project?

Timelines vary based on project size and complexity, but we work efficiently to meet your deadlines without sacrificing quality.

General & Other FAQs

Do you offer emergency services?

No, we do not offer 24/7 emergency service. However, we provide rapid response during business hours and prioritize critical environment issues whenever possible.

How do you handle coordination with other subcontractors?

We use BIM coordination, proactive communication, and trade meetings to prevent clashes and maintain smooth workflows on-site.

Can you take over projects mid-way or during renovations?

Yes, we can step into ongoing projects or renovation work, especially in critical environments where continuity and control are essential.

What types of warranties do you offer?

We provide standard warranties based on the equipment and scope of work. Extended warranties and service contracts are also available for qualified systems.

Do you provide value engineering recommendations?

Absolutely. We routinely suggest design optimizations to reduce cost or improve efficiency, while maintaining compliance and performance.

What types of facilities do you typically work in?

We specialize in healthcare, laboratories, pharmaceuticals, data centers, manufacturing, and other critical or highly regulated environments.

Can you provide documentation for regulatory compliance?

Yes, we compile closeout packages with all required documentation, including O&M manuals, testing results, and certificates of compliance.

How do you ensure quality control throughout a project?

Our in-house QA/QC process includes inspection checkpoints, field supervision, and performance testing to ensure standards are met throughout the job.

What is your typical project timeline?

Project durations vary by size and scope. We provide a detailed schedule with milestones and maintain transparency throughout execution.

Do you offer post-installation support?

Yes, we provide training, warranty service, maintenance packages, and ongoing support after project completion.