Commercial HVAC Services in Gaithersburg, MD
When your building's HVAC goes down, it costs you customers, comfort, and productivity. P&Y Heating and Cooling provides commercial HVAC repair, installation, and maintenance for offices, retail spaces, and light-commercial properties across Gaithersburg and Montgomery County.
We understand that businesses need fast response and minimal disruption. Our licensed technicians service rooftop units, split systems, and light-commercial equipment, and we offer maintenance agreements that keep your systems running and your tenants comfortable.

Commercial HVAC Services We Provide
We support the mechanical systems that keep your business comfortable:
- Rooftop unit (RTU) repair and replacement
- Light-commercial split system service
- Preventive maintenance agreements for reliability
- Emergency commercial repair to minimize downtime
- New system installation and equipment upgrades
- Indoor air quality and ventilation solutions for occupied spaces
How We Work With Businesses
We keep it professional, scheduled, and low-disruption.
Assess your equipment
We evaluate your rooftop units or split systems and understand your building's comfort and uptime needs.
Scope the work
You get a clear written estimate and, for larger projects, permit and inspection coordination with Montgomery County.
Schedule around your business
We work to minimize disruption to customers and staff, including after-hours service when needed.
Maintain for reliability
A maintenance agreement keeps your systems tuned, catches problems early, and gives you priority response.
Why Property Managers Choose P&Y
Property managers and business owners across Montgomery County rely on us for responsive, professional service and clear communication. We show up when we say we will, provide written scopes, and treat your building and your tenants with respect. For multi-tenant and retail properties, a maintenance agreement means fewer surprise breakdowns and comfortable spaces year-round.
Minimizing Downtime
A comfortable space keeps customers shopping and employees productive. When commercial equipment fails, we prioritize fast diagnosis and repair, and we can schedule larger work after hours to keep your business running. Our goal is to get your building back to comfortable with as little interruption as possible.
Commercial HVAC Pricing
Commercial work is scoped per project after an on-site assessment. Factors include:
- The number, type, and size of units (rooftop, split, packaged)
- Repair, replacement, or new installation
- Roof or equipment access and lift requirements
- Maintenance agreement coverage and visit frequency
- Permits and inspections for larger projects
Request Service
Fast response · No obligation · Upfront pricing
Why Businesses Choose P&Y for Commercial HVAC
Downtime costs you customers and comfort. Here's why property managers across the county rely on us.
We work around your business
We schedule larger work after hours when needed so your customers and staff aren't affected, and we communicate clearly at every step.
Maintenance agreements that prevent surprises
Scheduled RTU inspections, filter and coil service, and priority response mean fewer emergency breakdowns and a predictable budget for your property.
One team, residential-grade care
The same licensed, family-owned attention we bring to homes — written scopes, honest advice, tidy work — applied to your rooftop units and light-commercial systems.
Where We Provide Commercial HVAC Services
We serve commercial and light-commercial properties across Montgomery County, including the mixed residential-and-industrial corridor of Jessup and business districts throughout the region. Ask about a maintenance agreement built around your building and budget.
We serve commercial hvac services across Gaithersburg and all of Montgomery County, including:
Commercial HVAC Services FAQs
Do you service commercial rooftop units?
How quickly can you respond to a commercial HVAC emergency?
What kinds of commercial properties do you serve?
Can you set up a maintenance agreement for our building?
How fast can you respond to a commercial emergency?
What does a commercial maintenance agreement include?
Can you handle multiple units across several properties?
Do you provide written estimates for commercial projects?
Trusted by Your Neighbors
P&Y (Pedro) and his crew were absolutely outstanding. My unit was about 20 years old and giving problems. He was very responsive and made an appointment the same day. He not only told me the issue but gave me options — a repair price and a price on a new unit — even knowing the unit was 20 years old. Other companies just told me to change the unit. His crew spent almost 7 hours and tested it so it worked perfectly. Reasonable and great pricing than these big box companies.
Sandeep Visveswaran
Verified Google review
AC Installation
Great service and very honest. My parents had an HVAC issue where they called two different companies and both said to replace the whole unit. We decided to go for a 3rd opinion and contacted P&Y. It turned out to be a simple fix.
Mario Velarde
Verified Google review
AC Repair
Pedro found and repaired the problem with our AC that others had missed. He was prompt, professional and very pleasant to deal with. Very important to us was that the cost was reasonable AND that he concentrated on fixing the AC instead of trying to sell us a new one. I strongly recommend him.
Norma Neuberg
Verified Google review
AC Repair
Need Commercial HVAC Services in Gaithersburg?
Family-owned, licensed, and available 24/7. Call now for fast service and a free estimate across Montgomery County.
- 5.0★ (112+ reviews)
- Licensed & Insured
- 24/7 Emergency Service
