Commercial HVAC Services
We provide independent, data-driven commercial HVAC services designed to protect health, reduce risk, and lower operating costs.
Our Greenwood, Indiana team brings more than 25 years of environmental consulting expertise and a BBB A+ rating to every project. We focus on assessment, compliance, and optimization so your mechanical systems work as intended and your occupants stay comfortable.

Table of Contents
- What We Do
- Who We Serve and Service Area
- When to Call Us
- HVAC System Assessments and Diagnostics
- Sampling and Instruments
- Indoor Air Quality and Ventilation Compliance
- Occupant Health and Complaint Response
- Preventive Maintenance Programs
- Industries and Use Cases
- Pricing, Timeline, and How to Get Started
- Why Aegis Environmental Inc.
- FAQs
What We Do
- HVAC Repair (24/7): Rapid diagnostics and fixes for furnaces, heat pumps, ACs, and ductwork.
- New System Installation: Right-sized systems for homes and businesses, installed by experienced pros.
- Preventive Maintenance: Seasonal tune-ups and service agreements to reduce breakdowns and costs.
- Commercial HVAC: RTUs, split systems, VAV, temp controls, exhaust/supply fans, and make-up air units.
- Carrier® Options: We are certified dealers of Carrier® HVAC products.
Who We Serve and Service Area
We support organizations that view indoor environmental quality as a critical part of safety, productivity, and brand reputation. Our work spans single-site facilities and multi-state portfolios.
- Facility types: Office buildings, healthcare and labs, manufacturing plants, warehouses, schools, retail, and hospitality.
- Geographic coverage: Indianapolis, Greenwood, Shelbyville, Franklin, Southport, Carmel, Fishers, and nearby Central Indiana communities.
- Portfolio coordination: We align HVAC assessments with broader environmental health and safety goals for portfolio consistency and compliance.
When to Call Us
If you face persistent comfort issues, sudden energy spikes, or compliance uncertainty, an assessment can quickly surface the root cause. The sooner data is collected, the faster you can prioritize fixes and avoid repeat problems.
- Occupant discomfort or odors: Stuffy air, hot or cold spots, or unusual smells that recur.
- High energy bills: Unexpected increases that suggest control issues, poor scheduling, or ventilation problems.
- Moisture or mold concerns: Condensation, humid zones, or visible growth indicating ventilation imbalance or leaks.
- Audits and inspections: Preparation for corporate, insurance, or regulatory reviews.
- Renovations and fit-outs: Verifying the system can handle new layouts and loads before changes proceed.
HVAC System Assessments and Diagnostics
Our assessments provide a clear picture of mechanical condition, ventilation effectiveness, and safety. The deliverable is a prioritized plan, complete with photos, data, and budget ranges, that you can act on immediately.
- Equipment inventory and condition: Rooftop units, furnaces, boilers, chillers, exhaust fans, and supporting components such as coils, belts, motors, and dampers.
- Airflow and pressure testing: Measured supply and return airflow, duct static pressure, and balancing to correct over- and under-served areas.
- Controls and setpoints: BAS schedules, economizer operation, demand-based strategies, and deadbands to prevent simultaneous heating and cooling.
- Filter and cleanliness review: Proper MERV ratings, change frequency, and cleanliness of ducts and air handling sections that affect IAQ and efficiency.
- Outside air verification: Fresh air rates calculated and compared to ASHRAE 62.1 recommendations for your building type.
- IAQ measurements: Logged temperature, relative humidity, CO2, CO, particulate, and TVOCs to identify root causes of complaints.
- Equipment inventory and condition: Rooftop units, furnaces, boilers, chillers, exhaust fans, and supporting components such as coils, belts, motors, and dampers.
What You Receive After the Assessment
We translate findings into a practical action plan you can share with leadership, contractors, and occupants. Each recommendation includes the driver, suggested fix, and expected impact.
- Severity ranking: Safety and compliance first, followed by reliability and efficiency gains.
- Code and standard references: Cross-references to ASHRAE, EPA, OSHA, and local code pathways for clarity.
- Budget and phasing: High-impact low-cost items first, capital items planned with lead times.
- Photos and trend data: Visual evidence and short- and long-term monitoring results for transparency.
Sampling and Instruments
Accurate measurements are the basis of sound decisions. We use calibrated, professional-grade tools and maintain chain-of-custody when laboratory analysis is required.
- Airflow meters and balometers: Quantify supply and exhaust flows at diffusers and grilles.
- Manometers and pressure gauges: Verify duct static pressure and filter pressure drop.
- Data loggers: Track temperature, humidity, and CO2 across occupied and unoccupied periods.
- IAQ sampling pumps: Collect mold spores, VOCs, and dust for certified lab analysis.
- Infrared cameras: Reveal thermal anomalies, insulation gaps, and hidden moisture or duct leakage.
Indoor Air Quality and Ventilation Compliance
Healthy, well-ventilated spaces protect people and reduce liability. We test, document, and help you align with accepted standards so you can demonstrate due diligence to auditors, insurers, and occupants.
- Baseline IAQ testing: CO2 to validate ventilation effectiveness, CO for combustion safety, PM2.5 and PM10 for particulates, and targeted mold sampling where moisture is suspected.
- Ventilation balancing and verification: Measurement and adjustment to meet ASHRAE 62.1 targets for your occupancy type with outside air rates verified against design needs.
- Moisture and mold controls: Inspection of condensate management, insulation, and envelope contributors. Clear, documented steps for safe remediation and post-remediation checks aligned with EPA and CDC guidance.
- OSHA documentation support: Organized ventilation rates, contaminant levels, and mitigation steps to support employer responsibilities under the General Duty Clause.
Communication With Tenants and Staff
Clear, balanced communication reduces anxiety and builds trust. We provide summary memos and talking points that make technical results easy to understand.
- Plain-language summaries: What was tested, what was found, and how the building team is responding.
- Visuals: Simple charts and color-coded findings that non-technical audiences can follow.
- Repeatable updates: Templates for ongoing IAQ status and progress against action items.
Occupant Health and Complaint Response
A structured workflow resolves complaints faster and prevents repeat issues. We combine targeted testing with root cause analysis so fixes stick.
- Complaint intake: Location, timing, affected groups, and any patterns.
- Targeted diagnostics: CO2 and ventilation checks for stuffy areas, moisture and mold sampling where odors or dampness are present.
- Root cause and corrective action: From disconnected ducts to off-gassing materials, we pinpoint the source and recommend the right fix.
- Retesting and documentation: Follow-up measurements to validate resolution and create a record for compliance and liability management.
Preventive Maintenance Programs
Well structured maintenance prevents failures, preserves capital, and improves comfort. We develop risk based programs that match equipment criticality and your operating schedule. Plans are clear enough for in house staff and rigorous enough for third party contractors. Documentation makes progress visible and defensible to leadership.
- Customized maintenance calendars: Task lists per asset with weekly, monthly, quarterly, and seasonal activities.
- Seasonal readiness: Cooling and heating startup checks, economizer verification, and freeze protection reviews.
- Failure mode focus: Critical spares identified, vibration and thermal checks where beneficial.
- Vendor oversight: Scope setting, KPI tracking, and objective quality assurance for contractors.
- Documentation and KPIs: Work order logs, filter load trends, runtime versus schedule, and unplanned outage rates.
Sample PM KPIs We Track
Reliable metrics help you see what is working and where to adjust. We tailor these to your building type and priorities.
- Mean time between failures per unit
- Percentage of on time preventive tasks completed
- Filter pressure drop trend and change frequency
- Comfort compliance score by zone
- Unscheduled service calls per 1,000 operating hours
Cut surprise HVAC outages before they start.
A tailored PM plan reduces breakdowns and keeps conditions steady without overspending on parts or labor.
Industries and Use Cases
Every facility type presents distinct airflow, pressure, and contaminant challenges. We adapt standards and methods to your risk profile, occupancy patterns, and budget. The goal is reliable comfort, documented compliance, and measurable savings.
- Manufacturing and warehouses: Pressurization strategy, make up air for processes, and targeted extraction.
- Healthcare and labs: ASHRAE 170 alignment, isolation room pressure checks, and HEPA strategies.
- Offices and commercial real estate: CO2 based ventilation control, odor management, and humidity stabilization.
- Education: Classroom fresh air audits, allergen and moisture checks, and phased upgrade roadmaps.
- Retail and hospitality: Kitchen hood balance, meeting room DCV, and odor transfer prevention.
Pricing, Timeline, and How to Get Started
We scope each engagement to your goals and constraints. Most projects begin with a short consult to align on priorities, then a written proposal with scope, timeline, and a fixed fee. Site work is scheduled to minimize disruption, and deliverables include a review meeting with your stakeholders.
- Transparent quotes: Flat project fees with optional add ons documented in advance.
- Right sized scope: From a focused IAQ check to a full system assessment and RCx.
- Clear timelines: Typical on site work in one day for a single facility with report delivery in one to two weeks.
- Review and follow through: Findings meeting, contractor coordination support, and optional retesting.
- Transparent quotes: Flat project fees with optional add ons documented in advance.
Service Comparison and Deliverables Table
A side by side view clarifies scope, outputs, and timing so you can choose the right entry point. Many clients combine an assessment with optimization and an ongoing PM program.
Service Offering | Scope and Focus | Key Deliverables | Typical Timeline |
HVAC System Assessment | Whole system audit of equipment and IAQ conditions. Physical inspections, performance testing, and data logging. | Detailed report with findings, photos, IAQ results, outside air and balancing data, and prioritized recommendations with budget ranges. Review meeting included. | About 1 day on site, 1 to 2 weeks for the report. Rush options available. |
IAQ and Ventilation Compliance | Focused testing and ventilation analysis for health, risk, and regulatory alignment. | IAQ report with pollutants versus guidance, ventilation rates versus ASHRAE 62.1, and a compliance checklist with corrective steps. | 1 day on site. Add lab time for samples. 1 to 2 weeks for documentation. |
Preventive Maintenance Planning | Custom maintenance schedule and asset program that guides staff and vendors. | PM program document with task lists, frequencies, technician checklists, and KPI tracking logs. Periodic performance reviews. | Initial setup in a few weeks with quarterly updates. |
FAQs
We focus on consulting, assessment, optimization, and oversight. We work alongside your chosen contractors, specify requirements, and verify quality. This keeps our advice objective and aligned with your interests.
We reference ASHRAE 62.1 for ventilation, OSHA employer responsibilities for workplace air quality, and EPA and CDC guidance for indoor pollutants and mold. Local codes and IMC references are considered where applicable.
Pricing reflects square footage, number and type of units, testing depth, and number of locations. We provide fixed proposals after scoping so you have cost certainty. Any added scope is approved before work proceeds.
Yes. We standardize methods, build a central data library, and provide dashboards so your team can compare locations and act quickly. Engagements can be structured as fixed fee projects or recurring services.
Expect a prioritized list of fixes that improve safety, comfort, and energy performance. You will receive documented ventilation rates, IAQ results, photos, and a clear phasing plan that fits your budget.
We prepare plain language summaries with charts and color coded results. Property managers can share these memos to maintain transparency and reduce worry.
We manage the full process including chain of custody, accredited labs, and interpretation. Results are added to the final report with practical recommendations.
Ready for safer air and lower costs this quarter.
One targeted assessment can uncover quick wins that fund longer term improvements.
