21 Century Services

Door Installation and Door Repair Service


Door Replacement & Door Repair

Time to replace or repair a door eh? Not a problem, we’re here to help you. We have an awesome team of door installers and door repair experts. Whether a door needs to be readjusted to fit, replaced, a doorknob installed, or if you simply want to install a new door, we can help.

Door Installation Questions?

We’d love to help! There are a few different ways to reach our door installation and door repair team. At our (new) Northern Virginia office in Vienna by calling (703) 827-3778 or in Washington DC by calling (202) 855-0115

  • Replace Front Doorknob
  • Replace Front Door Deadbolt
  • New Door Installation
  • Door Repair
  • Interior Doors
  • Exterior Doors
  • Storm Doors
  • French Doors
  • Closet Doors
  • Sliding Doors
  • Glass Doors
  • Screen Doors
  • Pocket Doors
  • Sliding Barn Doors
  • Wood Doors
  • Entry Door

Front door replacement

There are so many options when it comes to physical door. It isn’t too difficult to find a door that will match your homes design and style. The biggest problem we’ve seen are doors that are installed poorly. The problem is not as bad inside the home, but when you risk craftsmanship on the front door, that can be an issue.

In order to hang a door properly, you must consider the door opening, floor level, locking in the door jamb, consider door gaps, precise layout of the door hinges, latch, etc.

Door Installation & Door Repair Process

It is super easy to get started with our free estimate for door installation or door repair service. We have an awesome team always ready to help, answer any questions about doors and provide support. If we can’t help, we’ll be the first to tell you and try and point you in the best direction. And best of all? We’re local. Right here in Vienna Northern Virginia and serving the greater DC metro area. Our estimators are always on the road so we can schedule a visit quickly! Start the process now with our Free Estimate below.


No commitments! Schedule our free estimate to assess your specific door installation, door replacement or door repair project below. One of our door experts will come out, take a look and discuss the different options with you. We're super easy to work with!


How much will this cost? Once our door expert fully understands the scope of work and what the expectations are, we'll provide a comprehensive and detailed proposal for the work to be performed.


Ready to move forward? Awesome! This is the exciting part! This is when we start turning your expectations into reality. This is where our door team expert starts doing everything we said we would do. Our team will reach out and coordinate the entire project - from start to finish!


Throw Some Curb Appeal

What is curb appeal? It is simply the “first impression” the exterior of your home has on someone when viewed from the street. Are you proud of your homes appeal? This should not only be considered when selling your home. You should always keep the front (and all around) of your home fresh looking! Here are a few simple things you can do to improve it.

  1. Power wash siding
  2. Replace old hardware
  3. Add some extra lighting along driveway or sidewalk
  4. Add colorful flowers and upkeep front garden
  5. How old is your mailbox?
  6. Look up! Missing any roof shingles?
  7. Clean those metal house numbers
  8. Pressure-wash the driveway

Door Replacement Free Estimate

21 Century Services Customer Reviews

You’ll ❤ Working With Our Team.

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Door Installation Near Me

We are local and family owned. We recently moved from our Falls Church Virginia office, to our new office right here on Gallows Road Vienna VA. We love our new office and you are welcome to stop by! This is our new address.

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