Exterior Commercial Services
Commercial Window Services
Energy-efficient window replacement with minimal disruption to tenants and operations.
Aging windows cost commercial buildings money every month in heating, cooling, and tenant complaints. TopKey replaces and installs commercial windows for office buildings, apartment and condominium communities, schools, hotels, and institutional facilities across the DMV, working floor by floor or unit by unit so the building stays occupied.
TopKey is a ProVia Platinum Dealer, the highest tier of ProVia’s contractor program, and we install commercial-grade aluminum, vinyl, and fiberglass window systems from major manufacturers.
What we do
Commercial Window Services
-
Full window replacement
Removal and replacement of existing units with new energy-efficient windows.
-
Multi-family window programs
Phased replacement across apartment and condominium communities with tenant coordination.
-
Storefront and entrance glazing
Aluminum storefront systems for retail and office entrances.
-
Window repair and glass replacement
Failed seals, broken glass, hardware, and weatherstripping.
-
Energy-efficient upgrades
Low-E, insulated glass units that reduce HVAC load and improve comfort.
Benefits
Benefits of New Commercial Windows
-
Energy savings
Modern insulated glass cuts heat loss and solar gain significantly.
-
Tenant comfort
Fewer drafts, less noise, and consistent temperatures near the glass.
-
Curb appeal
New windows are one of the most visible upgrades a building can get.
-
Lower maintenance
New hardware, seals, and finishes eliminate a constant source of work orders.
How it works
Our On-Time and On-Budget Process
Four steps from first call to finished project. No surprises at completion.
- 1
Talk to a Professional
Call 301-245-2070 or send a request online. A TopKey team member answers your questions and scopes the first visit.
- 2
Site Visit
We come to your property, walk the building with you, and listen to what the space needs to do.
- 3
Estimate
You receive an accurate proposal with a realistic timeline, backed by decades of commercial construction experience.
- 4
Job Execution
Our crews complete the repair or renovation with minimal disruption to tenants, staff, and operations.
Testimonials
What property managers say
“Top Key has done several jobs for me at various locations. We are pleased with the prompt response and attention to detail in taking care of our needs. Top Key has worked on roof repairs, stairwells, leaks, asphalt repairs, roof hatch, bollards, etc. Top Key has done top notch work and I highly recommend this company for any and all projects.”
“TopKey Construction did a number of projects at my commercial building in Md. They did parking lot restriping, and office buildouts that included beautiful, specialized accent walls. The company was efficient clean, and very easy to work with. The work was done in a timely fashion. I would highly recommend them.”
“St. John's School in Clinton, MD has used TopKey for the past 3 summers for major construction projects to enhance the safety of our school as well as making it more energy efficient with new windows. From the sales rep to the project manager to the technicians themselves have always been professional and courteous. They are always vigilant of when students are on campus and respect their safety. We would strongly recommend TopKey for any project large or small.”
“Glen, Duane, Nancy and your team did an awesome job on the Columbia Park project. Brought to light some unsafe conditions with one of the electrical panels and repaired. Addressed the hot water heater and fountain wiring issues which were outside of the original scope of work. The overall work performed was outstanding and within the scheduled time-line despite some unforeseen items that arose with the warehouse demo portion. Thank you!”
Worked with us? Leave a Google review.
Service area
Windows Across Maryland, Northern Virginia & DC
From our Laurel, Maryland headquarters, TopKey crews serve commercial and multi-family properties within roughly 50 miles, covering Maryland, Northern Virginia, and Washington, D.C.
FAQ
Windows Questions, Answered
Can you replace windows in an occupied apartment building?
Yes. Most of our multi-family window work is in occupied buildings. We schedule by building and unit, notify residents, and typically complete each unit in a single day.
What does ProVia Platinum Dealer mean?
It is the top tier of ProVia’s contractor program, awarded based on installation volume, training, and customer satisfaction. It reflects our experience installing ProVia window and door products.
Related Services
Talk to a windows professional today.
Schedule a free consultation and site visit. We will walk the property, listen, and deliver an accurate estimate with a realistic timeline.
- Job completed on time. On budget.
- 100% customer satisfaction guarantee.
- Absolutely 0 surprises at completion.
- Professionally trained technicians.