Serving Pennsylvania & Beyond Since 1973
Commercial & Industrial HVAC
Engineered Solutions
Controls & Automation
Commercial Plumbing
Reduce Operating Costs. Prevent Downtime. Extend Equipment Life.
Controls Service & Engineering Co., Inc. (CSE) helps building owners and facility managers run more reliable, efficient facilities—through full-scope commercial HVAC service, predictive maintenance, building automation, and engineered retrofit solutions.
We support 1,500+ buildings and communications sites across Pennsylvania (and beyond) from our offices in New Cumberland, Chambersburg, York, and Mifflintown — plus additional technicians stationed throughout the region. We also support mission-critical environments, including telecommunications tower cooling and Vertiv™ Liebert® precision cooling for data centers and server rooms. Our core services include…
- Commercial HVAC service, repair & installation
- Predictive maintenance programs
- Building automation & HVAC controls
- Engineered solutions & retrofits
- Refrigeration & mission-critical cooling
- Commercial plumbing & backflow services
Schedule a Free Equipment Survey & Consultation…
(Looking for residential service in Juniata County? See Home Solutions.)
Building Owners: Safeguard Your Property & Your Bottom Line
Owning a building comes with enough surprises. Your mechanical systems shouldn’t be one of them. CSE helps you protect your investment with proactive maintenance, performance-focused service, and engineered improvements that reduce operating costs and improve comfort.
Facilities Managers: Enjoy Fewer Headaches & More Control
Your job is complex. HVAC shouldn’t make it harder. CSE provides responsive support, knowledgeable technicians, and proactive maintenance strategies that reduce emergencies and keep systems operating the way they should.
1500+
Buildings & Towers Under Contract
50+
Years of Reliable, Quality Service
6x
Fewer Compressor Failures
10-20%
Typical Energy Savings
Why CSE for Commercial HVAC?
At CSE, our customers can count on us to deliver high quality HVAC solutions and exceptional personal service, while minimizing long-term operating costs. As a trusted partner, we serve our customers with honesty and integrity, we keep our promises, and we strive for excellence in all we do.
Put simply, our customers are Priority #1.
Lower Operating Costs
Often 10–20% improved energy efficiency from optimized operation
Fewer Service Calls
Many facilities reduce calls by up to 50% through proactive care
Fewer Compressor Failures
Up to 6x fewer failures vs. national averages*
Longer Equipment Life
Reduced wear and fewer cascading failures
*Based on CSE service data compared to industry averages
Lower Operating Costs… Guaranteed!
In many facilities, there’s a real opportunity to reduce energy waste and improve HVAC efficiency. CSE offers performance-focused service programs and engineered solutions designed to lower operating costs. If we don’t reduce your HVAC-related operating costs under the program terms, we’ll refund the cost of your Service Agreement.
Your Building Deserves Better. So Do You.
Whether you manage one facility or a portfolio, CSE delivers reliable service, measurable savings, and proactive support that helps you stay ahead of problems.
Office Hours: Mon-Fri 7:00am – 5:00pm
Home Comfort, Handled by Experts
Residential HVAC Services in Mifflintown, PA
Looking for the same level of professionalism and performance we bring to commercial buildings—at home? At CSE, we offer high-quality residential HVAC services through our Home Solutions division based in Mifflintown, PA.
Whether you’re building a new home, upgrading your current system, or simply want more reliable comfort year-round, our experienced technicians deliver the comfort, efficiency, and personal attention your home deserves.
Serving homeowners in Mifflintown and surrounding areas with…
