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Best security door installation pros near Gaithersburg, MD

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TRUSTED BY GAITHERSBURG, MD HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon645
    Verified security door installation services reviews

Top-Rated Security door installation pros in Gaithersburg - Updated Nov 2026

Avatar for SafeStreets - ADT Authorized Provider
SafeStreets - ADT Authorized Provider
4.8(
320
)
Security Bars - Install or Repair - For Business

Serving Gaithersburg, MD and surrounding areas

Approved (Corporate)

In business since 2010

Free estimates

Emergency services offered

"We wanted to get on board with the current trend in doorbell cameras. Got a quote from ADT Provider, known as Safe Street USA, and felt their offer was more than fair. We have door sensors and motion detectors inside and the doorbell camera mounted outside. Nice to feel “with the times” in home automation and security."
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+1

4 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for ADT
ADT
4.5(
892
)
Security Bars - Install or Repair - For Business

Serving Gaithersburg, MD and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1874

Free estimates

Emergency services offered

"Protect Your Home group with ADT has exceeding our expectations in getting a new home security system. In the end, everything was a breeze and not stressful whatsoever. We tested the siren and our neighbors 2 doors down could hear it; which is what we were hoping for!"
Home Security Essentials
Smart Home Security
Cameras
Our Team
Home Security Essentials

+35

32 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Byers Security
Byers Security
4.4(
333
)
Security Bars - Install or Repair

Serving Gaithersburg, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2001

Free estimates

Customers say: True professional

"I had my storm door replaced by Byers security. Mike and Paul did a fantastic job installing it. They took their time and the door fits perfectly. Looks great. Mike was in touch with me throughout the purchasing process. Great company to deal with."
Window Guard 1
Window Guard 2
Window Guard 3
Window Guard 4
Response time1 day
Response rate100%
18 neighbors recently requested a quote
Medallion Security Door and Window Co.
4.2(
22
)
Security Bars - Install or RepairSecurity Bars - Install or Repair - For BusinessSecurity or Storm Shutters - Install+1 more

Serving Gaithersburg, MD and surrounding areas

Approved

In business since 1991

Free estimates

Warranties offered

"I am leaving this review regarding Medallion Security Door and Window Company. In addition, as a customer I rate them with 5 stars. Why? First of all Medallion installed my back security door about 20 years ago, and I still use it, it's a little rusty now but that's due to my neglect. Second, I visited Medallion's show room in late June 2022. Erlin R. showed me around and provided just what I needed in terms of assistance, information and professionalism. Peter, came out a week or so later and measured my front entrance and on July 13th. 2022 Caesar and crew came out and installed front security door. I am satisfied 100%, plus I have received information on how to care for door which is a plus for my investment. THANKS MEDALLION & GOD BLESS. Sinclair H."
Full View Security Doors
Security doors with matching Iron Rails
Security Barless Doors
Pavers
Security Doors

+1

Response time2 days
7 neighbors recently requested a quote
Recommended by73%of homeowners
Avatar for Chapin Handyman LLC
Chapin Handyman LLC
4.9(
36
)
Security Bars - Install or Repair

Serving Gaithersburg, MD and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

"I very much recommend this contractor! Answers fast, gives extremely fair prices, gives fast appointments AND the show up on time! They are very polite and nice. They also clean up the station after they’re done! I find them reliable, quality work and fairly priced. They also work as long as they need to. For our house they: Fixed the window frames outside because the mortar was broken or eroded and when it stormed outside, it rained inside our house. They changed rotten wood, painted it, cemented places in the brick wall that needed it, put mortar/caulk and sealed 4 windows from the outside. The other project was putting bifold closet doors which included cutting them to size, installing the hardware, and painting them. This was the first time I’ve had to hire someone to fix things around the house that I couldn’t, and I was really nervous. I’m grateful I found Chapin Handyman LLC through Angie’s list! Oh! And they are insured and bonded, too!"
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+58

Response time10 hrs
Response rate100%
Recommended by82%of homeowners
Avatar for Glc
Glc
4.9(
14
)
Security Bars - Install or Repair - For Business

Serving Gaithersburg, MD and surrounding areas

Approved

In business since 2013

Free estimates

Warranties offered

For the past 20 years of network cabling, CCTV and Security Access experience. In addition of being a fiber certified technician. Alway willing to make my customers happy and satisfy with my work.

Home Security Systems Project
20p touch screen panel.
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+47

Response time1 day
1 neighbors recently requested a quote
Recommended by64%of homeowners
Avatar for J A Electric LLC.
J A Electric LLC.
4.9(
54
)
Security Bars - Install or Repair - For Business

Serving Gaithersburg, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Emergency services offered

J A Electric LLC has provided dependable electrical and security services since 2015, with a strong commitment to quality workmanship, safety, and customer satisfaction. We proudly serve residential and commercial clients, offering solutions tailored to their needs.\n\nOur services include electrical installations and repairs, electrical panel upgrades, EV charging stations, interior and exterior lighting, ceiling fans, attic and whole-house fans, alarm systems, surveillance cameras, fire protection systems, and security safe installations.\n\nWe take pride in our attention to detail, professionalism, and dedication to completing every project to high standards. From minor repairs to complex installations, we focus on safety, efficiency, and reliable results. Our customers' needs always come first, and we strive to provide clear communication, dependable service, and quality work you can trust.

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+25

Response time12 hrs
6 neighbors recently requested a quote
Recommended by62%of homeowners
Avatar for Jim Ness
Jim Ness
4.8(
27
)
Security Bars - Install or RepairSecurity or Storm Shutters - InstallSecurity or Storm Shutters - Repair

Serving Gaithersburg, MD and surrounding areas

Approved

In business since 1985

Free estimates

Credit card accepted

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade, and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

Shower tile work and rot
Shower tile work and rot
Shower tile work and rot
Shower tile work and rot
Jumbo Lego style Wall

+13

Response time1 day
Recommended by92%of homeowners
Avatar for New Life Handyman Services
New Life Handyman Services
4.5(
233
)
Security Bars - Install or Repair

Serving Gaithersburg, MD and surrounding areas

Approved

Super Service Award Winner

In business since 1979

Free estimates

Emergency services offered

"Great job. Two interior doors were replaced; one including the frame. Now we have nice looking new doors. Bobby was professional, efficient, and neat. The price was reasonable. I will definitely hire again. Thanks."
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+26

Response time10 hrs
Response rate100%
1 neighbors recently requested a quote
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Security Doors FAQs, answered by experts

Changing the alarm in your wireless security system is a perfectly reasonable DIY task that most people can complete on their own. Simply open the system’s control panel, remove the existing battery, and replace it with a new one. If you’re using a wired system, this may require disconnecting and reconnecting both the positive and negative wires attached to the battery, and you may want to call in a professional to help. 

Yes, most pros encourage you to change your locks when you move into a new home. While the previous owner may hand you their keys, you have no way of knowing whether other copies exist elsewhere. Changing your locks as soon as you move in is a great way to ensure that you can enjoy new, fully functioning locks that will work with your unique key or code.

Homeowners insurance can be voided in several scenarios. That can include making too many claims in a short period of time, leaving a home vacant for an extended period of time, renting out a home or room illegally, using a home as a business illegally, and any kind of criminal activity connected to the home.

The best type of deadbolt depends on your specific needs. If accessibility is your primary concern, a single-cylinder deadbolt is the easiest to operate. Mortise locks are likely the most secure type of deadbolt you can install, but single-cylinders combined with secondary locking mechanisms like vertical locks are also a great option. Smart locks will give you the most flexibility to open and close your locks whenever and wherever you need to. 

Several types of deadbolts are available, including single-cylinder, double-cylinder, rim, smart, and electronic deadbolt locks. The most common type found in U.S. homes is the single-cylinder deadbolt, which uses a key on the exterior and a thumb turn on the interior. A double-cylinder deadbolt features two locking mechanisms and requires a key to be operated from both the inside and the outside.

The Gaithersburg, MD homeowners’ guide to security door installation services

From average costs to expert advice, get all the answers you need to get your job done.