Day & Nite Commercial HVAC Services — Powering Pennsylvania’s Businesses with Reliable Climate Control from Philly to Pittsburgh

Pennsylvania doesn’t take it easy on HVAC systems. Summers hit hard with humidity, winters swing from mild to brutal, and commercial buildings across the state demand systems that don’t flinch under pressure. At Day & Nite, we specialize in commercial HVAC solutions built for this environment — smart, efficient, code-compliant systems that keep the air moving and the operations running.

From the skyscrapers of Center City Philadelphia to the steel-walled production spaces of Pittsburgh, from school campuses in Scranton to hospitals in Harrisburg, we’re the HVAC team that businesses across Pennsylvania call when they need it done right — the first time.

Engineered HVAC Solutions for Every Type of Space

No building is the same, and no HVAC system should be either. Whether you’re running a multi-story office in Allentown or a food processing plant in Reading, we design HVAC systems that are built around your layout, load, and business needs. Rooftop units, packaged systems, make-up air, humidity control, VRF, kitchen exhaust, multi-zone systems — we handle every element from engineering to final install. Built to last. Built to perform in Pennsylvania’s toughest conditions.

Professional Installations Without Delays or Excuses

Opening a restaurant in Lancaster? Retrofitting an aging HVAC system in Wilkes-Barre? Our install teams are built for the commercial world — fast, detail-focused, and always code-aware. We work cleanly and efficiently, coordinate with your GC or facilities team, and keep your project on schedule. From permitting and placement to full system startup, we make the install process smooth — whether it’s a rooftop unit on a retail plaza in York or a full HVAC retrofit in a historic Erie building.

Emergency HVAC Repairs That Actually Happen When You Need Them

There’s no good time for HVAC to go down — but when it does, you can’t afford to wait. Our techs are available 24/7 across Pennsylvania, ready to respond fast with the tools, parts, and training to get your system back up. Whether it’s a compressor failure in Pittsburgh or a blower issue in King of Prussia, we don’t show up to guess — we show up to fix. No delays. No red tape. Just straight-up results when you need them most.

Preventative Maintenance That Works in Every Season

Pennsylvania’s climate swings hard — and your HVAC system needs to be ready for all of it. Our preventative maintenance programs are tailored to your equipment and your operation. We inspect, test, clean, replace worn parts, and track performance — keeping your system tuned up, energy-efficient, and breakdown-resistant. We’re not here to give you a checklist. We’re here to stop problems before they shut you down.

Trusted by Businesses Across Every Industry in the Commonwealth

We work with commercial clients in every sector — from industrial to institutional, from hospitality to healthcare:

• Full-service and quick-service restaurants

• Hotels, resorts, and event spaces

• Hospitals, medical centers, and rehab facilities

• School districts, colleges, and universities

• Food and beverage production facilities

• Retail centers, malls, and franchises

• Government buildings and public facilities

• Corporate offices and business parks

We’re out there every day — in Philadelphia, Pittsburgh, Allentown, Harrisburg, Scranton, Bethlehem, Reading, and all across the smaller cities and towns that keep this state moving.

Built for Pennsylvania. Backed by National Experience. Always on Call.

We know what it takes to keep Pennsylvania’s commercial buildings cool, warm, safe, and functional. Our weather is wild. Our buildings are a mix of old, new, and everything in between. Our timelines are tight. And we’re here to meet all of it — with a team that understands urgency, reliability, and long-term performance.

Need a new HVAC system installed in State College? Repair emergency in Altoona? Preventative maintenance for multiple sites in the Lehigh Valley?

We’ll design it right.
We’ll install it fast.
We’ll fix it 24/7.
We’ll maintain it so you can breathe easy — season after season.

That’s Day & Nite Commercial HVAC — trusted across Pennsylvania to keep air moving and businesses growing.