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A failing commercial or automatic door can shut down access and disrupt operations. Whether in offices, hospitals, or schools, reliable doors are essential for safety and convenience.
Technicians who arrive late or without the right parts only make things worse. You need fast, dependable help from trained professionals who fix the problem the first time.
Del-Mar Door Service provides expert commercial door services across Delaware. Our AAADM-certified technicians respond fast and arrive in fully stocked vans, ready to complete most repairs on the spot.
As part of Door Services Corporation and Horton Automatics, we bring over 60 years of industry innovation and dependable service. Whether you manage a healthcare center, school, or retail facility, we keep your doors working so your business runs smoothly.
Need emergency help or preventative maintenance? Contact us now. Our Delaware-based team is ready 24/7.
We’re trusted across Delaware for fast response, skilled technicians, and dependable service. Backed by Horton Automatics, we bring expert knowledge and local reliability.
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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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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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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Our technicians have the most experience based on 60 years of company history and a leading technician training program.
Find out moreTake these simple measures to ensure that every industrial door and commercial door in your building runs smoothly year-round and functions consistently.
Getting your Automatic Door fixed is as easy as 1-2-3:
We answer the phone day and night and have technicians on call 24/7. We schedule a technician within 24 hours. If it’s an emergency then we will service your door even after hours.
Our AAADM certified technician comes and investigates the problem. We assess the door and let you know what needs to be done to quickly return it to its fully functional state.
We repair your door on the spot with cost-effective and high quality parts from the inventory in our van. For more complex issues or rare parts, we will schedule a timely follow-up.
We have the greatest product depth and breadth in the industry, with more types of interior doors and exterior doors than any competitor including innovative technical solutions for niche industries.
We provide complete commercial and automatic door services across Delaware—installation, repair, and maintenance by certified professionals.
View our full commercial door services here:
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.
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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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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.
Find Out MoreDel-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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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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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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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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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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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.
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Thank you for contacting us.
In the meantime, you can download our eBook for guidance on maintaining your commercial doors, ensuring they operate smoothly for safe and efficient entry and exit. Avoid the frustration of costly and delayed repairs with our services that guarantee quick, high-quality maintenance at predictable costs.
From Dover to Wilmington, our Delaware clients count on us for reliable door service. Here's what they say about working with Del-Mar Door Service:
Professionalism at its best. Communication was awesome and allowed me to ask any question I wanted concerning future maintenance. Thank you!!
Customer Review
Friends Boarding Home, Kennett Square, PA
Your guys do a great job when working at my facility and they go above and beyond to fix many issues here great attitude and service excellence great to work with your team is number 1 in my book look forward to working with the company for years to come.
Customer Review
Dover Behavioral Health Systems, Delaware
Professional staff and service. Highly experienced technicians.
Carl Zitofsky
Hospital Doors
Trusted partner for healthcare facilities, from revolving entrance doors to ICU and hospital room doors.
Hospital Doors
Industrial Doors
Security Doors
Hospitality Doors
Cleanroom Doors
Transit Solutions
Have questions about your commercial doors in Delaware? We’re here to help. Below are common questions we get from businesses and facilities across the state.
Automatic doors are ideal for a wide range of businesses, especially those with high customer traffic, such as retail stores, healthcare facilities, office buildings, hotels, and restaurants. They improve accessibility, enhance energy efficiency, and provide a welcoming entryway for all visitors. Del-Mar Door Service offers door solutions for various industries, ensuring each installation meets the unique requirements of the business.
AAADM stands for The American Association of Automatic Door Manufacturers. AAADM is a trade association of manufacturers of automatic pedestrian door systems. AAADM members work collectively in creating standards that define and govern the installation, function and safety for automatic pedestrian doors.
Our Technicians do everything they can to repair existing equipment but there are times when it is either technically or financially not feasible to carry out the repairs. In these instances, we can offer factory rebuilt product or brand new equipment at the customer’s request.
116 Sleepy Hollow Dr.800-492-2392
Suite B
Middletown, DE
19709 USA
Sales and installation are available at this location
Service is available at this location
