Commercial Services
Reliable plumbing, heating & cooling for your business — from small retail to multi-family properties.
Commercial Plumbing, Heating & Cooling Built on the Same Values as Our Residential Service
When your business depends on comfortable, functional spaces, you need an HVAC and plumbing partner who shows up on time, communicates clearly, and delivers quality work. At Siegman & Schaefer, our commercial division brings the same veteran-led integrity and workmanship that our residential customers have trusted since 1992 — now applied to light commercial, retail, multi-family, and new construction projects.
Our commercial division covers the corridor from Baltimore to Frederick to Harrisburg. Whether it's a new build, a retrofit, or ongoing maintenance for an existing building, we bring the expertise and reliability that property managers and business owners count on.
What we handle
Rooftop Units (RTUs)
Installation, repair, and preventive maintenance for packaged rooftop heating and cooling systems.
Split Systems & VRF
Efficient multi-zone climate control for offices, retail spaces, and mixed-use buildings.
Commercial Plumbing
Drain cleaning, water heater replacement, fixture installation, and backflow prevention for businesses.
New Construction & Retrofits
Full mechanical design-build for apartments, senior housing, and light manufacturing facilities.
Preventive Maintenance Contracts
Scheduled inspections and tune-ups that minimize downtime and extend equipment life.
24/7 Emergency Service
Same-day response for urgent breakdowns — because lost comfort means lost revenue.
Our Commercial Project Process
- 1
Initial Consultation
We meet with you to understand your building's needs, review plans or existing systems, and discuss your goals and budget.
- 2
Site Assessment & Proposal
We conduct a thorough site assessment and provide a detailed proposal with clear scope, timeline, and information.
- 3
Design & Engineering
For new construction and major retrofits, our team handles mechanical design-build to ensure optimal system performance.
- 4
Professional Installation
Our certified technicians complete the work on schedule with minimal disruption to your business operations.
- 5
Commissioning & Handover
We test all systems, train your staff on operation, and set up a maintenance schedule to protect your investment.
Industries we serve
Why Choose Siegman & Schaefer
Veteran-Owned
Serving our community with the same integrity we brought to military service.
10-Year Warranty
New installations backed by a 10-year manufacturer warranty.
All Makes & Models
We service every brand of heating, cooling, and plumbing equipment.
24/7 Emergency
Same-day response for urgent breakdowns — day or night.
Areas We Serve
We proudly serve Southern PA and Northern MD including:
Frequently Asked Questions About Commercial Service
Retail, restaurants, offices, multi-family apartments, senior living, light manufacturing, houses of worship, and mixed-use developments.
Yes. Full mechanical design-build for new construction including apartments, senior housing, and light commercial buildings.
Our commercial division covers the corridor from Baltimore to Frederick to Harrisburg.
Yes. Scheduled preventive maintenance contracts customized to your building's needs.
Yes. We install, repair, and maintain packaged rooftop heating and cooling systems.
Yes. We offer 24/7 emergency service because lost comfort means lost revenue.
Drain cleaning, water heater replacement, fixture installation, backflow prevention, gas line work, and full plumbing for new construction.
Yes. We design and install VRF systems for efficient multi-zone climate control.
Call our construction line at (410) 876-6825 or submit a request through our contact page.
Yes. PA License: PA010203. MD License: 8749. SBA SDVOSB and Maryland VSBE certified.
Let's talk about your building
We'll evaluate your system, recommend the right solution, and give you a clear quote — no pressure.