24/7 Emergency Repair Service
Del-Mar Door Service has AAADM certified technicians that are available around the clock to provide 24-hour emergency service to ensure the safety and security of your business.
Find Out MoreTrusted Door Experts for Wilmington Facilities
Wilmington is a vital hub for banking, healthcare, and education in Delaware. Whether you're operating in the downtown core, along Route 202, or near the Riverfront, your facility needs dependable automatic doors to stay secure and accessible.
Servicing Wilmington's Key Institutions
From corporate buildings and hospitals to local colleges, we handle repairs and maintenance for all types of commercial and industrial doors. We understand the high traffic and security demands of your entry systems.
Minimize Disruption with Proactive Maintenance
We help property managers in Wilmington stay ahead of costly breakdowns with routine door inspections and preventative service programs.
Emergency Repairs Available Day or Night
Door issues can’t wait—especially for public buildings and 24-hour operations. That’s why we offer round-the-clock emergency service with stocked vans ready to fix the problem immediately.
Why Wilmington Businesses Choose Us
With more than six decades in the door industry, we offer unmatched experience and efficiency. Our technicians show up on time, ready to work, with all the parts needed to complete the job quickly.
Preventative Maintenance
With our industry-leading preventative maintenance agreements we prevent break-downs and save on costs over the life of your door.
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Best Local Presence
Our extensive local presence includes 120 certified technicians across 18 locations, each equipped with a fully stocked van, ensuring fast and reliable service.
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Speed of Dispatch
We will have a technician work on your door within 24 hours. In an emergency we will help you after hours.
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Most Industry Experience
Our technicians have the most experience based on 60 years of company history and a leading technician training program.
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Full Commercial Door Services in Wilmington
We provide repair, maintenance, and installation of automatic doors, drive-thru systems, fire doors, and more. Whether your building is historic or modern, we offer compliant and effective solutions.
Commercial Door Installation
Our certified employees are available to serve your needs before, during and after install. Our 3-step process ensures quality product but also proper and safe installation.
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Automatic Door Maintenance
Del-Mar Door Service not only sells and installs top quality doors, windows and accessories, we also provide support and maintenance on all your automatic doors.
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Commercial Door Service
Del-Mar Door Service not only sells and installs top quality doors, windows and accessories, we also provide support and maintenance on all your automatic doors.
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Commercial Door Repair
Choosing the right partner for your commercial door repair services is just as important as choosing the right automatic door manufacturer. We can help!
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Won-Door Maintenance & Inspections
Keep your commercial doors working efficiently with our automatic door maintenance agreements. Our door maintenance contract will help avoid costly repairs.
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Door Maintenance Contracts
Keep your commercial doors working efficiently with our automatic door maintenance agreements. Our door maintenance contracts will help avoid costly repairs.
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Fire Door Inspections
We make sure your Fire Doors are keeping your employees and customers safe. Fire door inspections are the first step toward fire door compliance. Find out more!
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Manual Door Service & Installation
We help our clients reduce down-time and cost with fast service by the most experienced technicians. As an authorized distributor of various brands, we work with various types of manual doors.
Find Out MoreWilmington Clients Share Their Experience
Businesses across Wilmington trust us to keep their doors operating safely and reliably. Our professional service and fast turnaround make all the difference.
Very happy with the service we received from Del Mar Doors. From the technician to all the help from the office support staff.
Barry Schultz
Frequently Asked Questions in Wilmington
Here’s what facility managers and building owners in Wilmington most often ask us about our commercial door services.
Most projects can be scheduled around your building’s hours or done in phases to minimize disruption. We’ll give you a clear timeline up front based on your needs and building size.
Yes. Our ongoing maintenance plans help avoid unexpected breakdowns, keep your facility safe, and extend the life of your doors.
We aim to dispatch a technician the same day—usually within hours—thanks to our local team and stocked service vehicles.
Yes. We maintain and repair all types of commercial doors and automatic door systems, including sliding doors, swing doors, automatic swinging doors, and icu doors for specialized retail. Our technicians can replace a damaged door panel, upgrade your door operator, or install a new opener to keep your buildings running efficiently.