
(973) 846-9227
We support industrial facilities with end-to-end CEMS services, including routine service and maintenance, system upgrades, new system builds, and full DAHS support to keep systems reliable and operating as intended.
Hands-On CEMS Service, Troubleshooting, and Preventive Maintenance
System Upgrades and Modernization of Existing CEMS
New CEMS Builds and Turnkey Installations
DAHS Setup, Configuration, and Ongoing Support
One Trusted Partner for the Full CEMS Lifecycle
Accurate, Reliable Emissions Data You Can Defend
Fast, Responsive Service to Minimize Downtime
Experienced Technicians Across All Major CEMS Systems

PureCEMS is a specialized environmental services company focused exclusively on Continuous Emissions Monitoring Systems (CEMS). We help regulated industrial facilities maintain accurate, reliable emissions data while meeting strict environmental and regulatory requirements.
Our team brings hands-on technical expertise across CEMS installation, maintenance, repair, audits, and system upgrades. We understand that emissions monitoring is mission-critical—system downtime, inaccurate data, or failed audits can result in serious operational and compliance risks. That’s why we take a compliance-first approach to every service we provide.
At PureCEMS, we work with a wide range of CEMS platforms and analyzers, supporting both modern and legacy systems.
We don’t just service equipment. We ensure your entire emissions monitoring system performs accurately, consistently, and in full compliance with regulatory standards.

We provide complete CEMS installation and commissioning services, including system setup, calibration, and performance verification.
Full System Setup
Precise Calibration
Performance Verification
Compliance-Ready Operation

Our preventative maintenance and repair services are designed to keep your CEMS operating reliably and accurately.
Preventative Maintenance
Rapid-Response Repairs
Reliable Operation
Compliance Protection

PureCEMS supplies OEM and compatible replacement parts, analyzer upgrades, and system modernization solutions.
OEM & Compatible Parts
Analyzer Upgrades
System Modernization
Extended Equipment Life

We conduct Part 60 and Part 75 gas audits, opacity audits, and full system evaluations to ensure your emissions data is accurate and defensible.
Regulatory Gas Audits
Opacity & System Evaluations
Inspection-Ready Compliance
Defensible Emissions Data

Our technical support and consulting services provide expert troubleshooting, system optimization, and compliance guidance.
Expert Troubleshooting
System Optimization
Compliance Guidance
Trusted Technical Partner

We assist facilities with emissions data validation, reporting accuracy, and documentation support to meet regulatory and internal requirements.
Expert Troubleshooting
Accurate Reporting
Documentation Support
Compliance Risk Reduction
We provide end-to-end CEMS solutions—covering routine maintenance, system installation, upgrades, and full regulatory compliance support—to ensure your emissions monitoring is accurate, reliable, and audit-ready.

We provide complete CEMS services to support compliance, accuracy, and system reliability. Our capabilities include quarterly gas audit calibrations, routine monthly service, annual maintenance, and stack work.
CEMS maintenance
CEMS calibration service
Quarterly CEMS service
Annual CEMS maintenance
Emergency CEMS repair
On-site CEMS technician Support

Our preventative maintenance and repair services are designed to keep your CEMS operating accurately, reliably, and in full regulatory compliance.
EPA CEMS compliance support
Part 60 and 75 CEMS services
Part 60 and CEMS testing audits
Opacity audits
Linearity and CGA services

Service and Support for Teledyne, CAI, Thermo, and other majors analyzer manufactures
In- house RMA analyzer repair and troubleshooting services
Opacity monitor service, maintenance, and diagnostics
Gas analyzer calibration, verification, and performance testing
Gas analyzer calibration

We perform full system evaluations to ensure your emissions data is accurate, reliable, and defensible.
CEMS sample system repair
Heated sample line replacement
Sample probe replacement
CEMS scrubber media replacement
CEMS sample pumps
CEMS chiller service and maintenance
And more

We provide expert support for RKI DAHS systems, including system upgrades, PLC integration, and optimization of your monitoring infrastructure. Our services help modernize legacy systems while ensuring accurate, reliable, and compliant emissions monitoring.
RKI DAHS installation and support
Legacy system replacement with RKI DAHS
PLC upgrades and integration for CEMS
CEMS data reporting to EPA
DAHS configuration for Part 60 compliance
On-site technical troubleshooting

We assist facilities with emissions data validation, reporting accuracy, and documentation to meet both regulatory and internal requirements. Our team provides turnkey solutions for new installations, system upgrades, and retrofits.
CEMS installation
CEMS system upgrade
Dilution to extractive CEMS conversion
Turnkey CEMS installation
CEMS retrofit services

We target searches based on your specific industry and service area, ensuring your business appears in front of people actively looking for your services in your local market.
Power plant CEMS service
Industrial CEMS maintenance
Coal plant CEMS service
Natural gas plant CEMS
CEMS service near me
Northeast CEMS service

We supply and manage high-quality parts and consumables essential for reliable system performance, ensuring consistency, compliance, and long-term operational efficiency.
CEMS spare parts
CEMS major components
Heated sample lines
Analyzer spare parts
Sample probes

Clients trust our process, technical knowledge, and attention to detail. We focus on accuracy, compliance, and long-term performance
Reliable CEMS service
CEMS technicians with experience
Fast CEMS response
Technician-driven CEMS service
Compliance-focused CEMS company
Working with PureCEMS means partnering with a team that understands both the technical and regulatory demands of emissions monitoring. We go beyond basic service delivery by focusing on accuracy, reliability, and long-term compliance. Our approach is built around minimizing downtime, reducing compliance risk, and ensuring your systems perform when it matters most.
Our services ensure your emissions monitoring systems operate with unmatched accuracy, delivering reliable data for regulatory compliance and operational confidence.
We simplify the complex requirements of emissions monitoring, helping your facility meet EPA and state regulations without disruption or risk.
From installation to audits and ongoing technical support, we provide end-to-end solutions to keep your CEMS systems performing at peak reliability.
PureCEMS helps facilities achieve accurate, reliable, and fully audit-ready emissions monitoring. From system installations and upgrades to audits and ongoing maintenance, each project demonstrates our commitment to precision, regulatory compliance, and minimizing operational risk.




Industrial clients rely on PureCEMS because we combine deep technical expertise with a compliance-focused approach. From installation and maintenance to audits and system upgrades, we deliver accurate, reliable, and audit-ready emissions monitoring solutions.
PureCEMS has been instrumental in keeping our emissions monitoring systems accurate and compliant. Their team is responsive, knowledgeable, and always ensures our data is audit-ready.
The level of expertise and attention to detail from PureCEMS is unmatched. From system upgrades to audits, they consistently deliver solutions that reduce downtime and keep us fully compliant.
We’ve worked with several CEMS service providers, but PureCEMS stands out for their reliability and technical knowledge. Their team ensures our systems perform at peak efficiency, which gives us real confidence during inspections.
PureCEMS made the complex regulatory requirements simple to navigate. Their technical support and preventative maintenance plans have saved us time, money, and headaches.
Partnering with PureCEMS has transformed the way we manage emissions monitoring. Their proactive approach, fast response times, and compliance expertise make them an invaluable part of our operations
PureCEMS consistently goes above and beyond. Their team helped us upgrade our CEMS systems seamlessly while ensuring full regulatory compliance. We trust them completely with our emissions monitoring needs.
Our FAQ section provides clear answers about our services, system maintenance, audits, upgrades, and how we help industrial facilities maintain accurate, reliable, and audit-ready emissions monitoring.
A Continuous Emissions Monitoring System (CEMS) continuously measures and reports pollutants emitted by industrial facilities. It is critical for ensuring regulatory compliance, maintaining accurate environmental data, and avoiding penalties.
We work with industrial clients across power generation, manufacturing, chemical processing, cement production, and other regulated sectors where accurate emissions monitoring is required.
We offer end-to-end CEMS solutions including installation, calibration, maintenance, repair, parts supply, system upgrades, audits, compliance testing, data validation, and technical consulting.
PureCEMS provides rapid-response support to minimize downtime. Our technicians are experienced in diagnosing and fixing CEMS issues efficiently, ensuring your facility stays compliant.
Yes. We work with both modern and legacy CEMS equipment, providing upgrades, repairs, and parts to extend system life and maintain accuracy.
Absolutely. We perform Part 60 and Part 75 gas audits, opacity audits, and full system evaluations to ensure your emissions data meets regulatory requirements and is audit-ready.
Regular preventative maintenance is recommended to ensure optimal performance and compliance. Depending on your facility and system, this can range from monthly checks to quarterly service visits.
Yes. We provide training and guidance to help your staff operate and maintain CEMS systems correctly, ensuring consistent performance and regulatory compliance.
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