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TRUSTED BY THORNTON, CO HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon619
    Verified security door installation services reviews

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

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

Serving Thornton, CO and surrounding areas

Approved (Corporate)

In business since 2010

Free estimates

Emergency services offered

"SafeStreets’ alarm system is fantastic. The motion sensors, door/window contacts, and cameras work flawlessly. The home automation features are a huge plus—I can control everything from my phone. Highly recommend SafeStreets to anyone looking for reliable security."
Additional Photos
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+1

4 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for ADT
ADT
4.5(
891
)
Security Bars - Install or Repair - For Business

Serving Thornton, CO and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1874

Free estimates

Emergency services offered

"Last weekend had someone pry our side door open to our exterior garage and the ADT door sensor picked it up immediately. The alarm siren was loud and scared the person off. Someone from the response center called within 30 seconds. We’re fortunate that the security system did what it is supposed to. Feels like we made the right call going with an ADT security system."
Home Security Essentials
Smart Home Security
Cameras
Our Team
Home Security Essentials

+35

35 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Shield Iron Works
Shield Iron Works
5.0(
9
)
Security Bars - Install or RepairSecurity Bars - Install or Repair - For Business

Serving Thornton, CO and surrounding areas

Approved

In business since 1974

Free estimates

Emergency services offered

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!\n\nWe offer over 50 years of industry experience and will provide you with an unmatched level of experience and commitment to your home improvement project. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building long-term relationships with our clients and guarantee your satisfaction! Give us a call today, and let's get started.\n - Railing\n - Window Well Covers\n - Security Storm Doors\n - Entrance Gates\n - Security Window Guards\n - Mobile Welding\n - Commercial and Residential

Metal Railing
Basic Hand rail
Standard window well grate
Window well grate with vertical protection
Custom metal window well grate with Trap door

+56

Response time5 days
17 neighbors recently requested a quote
Recommended by77%of homeowners
Avatar for Cransten Remodeling
Cransten Remodeling
4.5(
209
)
Security Bars - Install or Repair

Serving Thornton, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"I have had Cransten Smart Security for about a year now and I just want to say how much I love the Camera quality. All of my neighbors with their DIY systems can't make out anything. Ours can make great detail at night time. Plus there is no service contract!"
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+18

Response time1 day
Response rate100%
3 neighbors recently requested a quote
Avatar for Fitch Services, LLC
Fitch Services, LLC
4.9(
7
)
Security Bars - Install or Repair

Serving Thornton, CO and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

"Brent and his team repair a sliding door and sliding screen door which were not operating correctly including some wooden trim on the sliding door. They also caulked all doors and windows at our house. They were not weatherized by the builder. The work looked great and the doors now slide with ease."
Response time6 days
Recommended by83%of homeowners
Avatar for Servant Heart Handiwork, LLC
Servant Heart Handiwork, LLC
4.4(
46
)
Security or Storm Shutters - RepairSecurity or Storm Shutters - Repair - For Business

Serving Thornton, CO and surrounding areas

Approved

In business since 2008

Customers say: Terrific value

"Very good,. He was a little slow in finishing the job but didn't charge extra for the agreed upon price. He took a bad storm door back to Lowe's and exchanged for a good one. Didn't charge me for the trip."
Art bath
Floor
Usually I find that all decks just require updates
Actual art kitchen remodel
Capable but not usually remodeling

+94

Response time6 hrs
Response rate100%
Recommended by79%of homeowners
Avatar for BDB Fabrication
BDB Fabrication
4.6(
4
)
Security Bars - Install or RepairSecurity Bars - Install or Repair - For Business

Serving Thornton, CO and surrounding areas

Approved

In business since 2017

Free estimates

Customers say: Quick response

BDB Fabrication is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. \nBDB Fabrication is a leader in providing our customers with the highest quality products and craftsmanship in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. \nWe look forward to working with you!

Before and after med and large curtain walls
Large Display Table
Small Display Table
Curtain Wall
Light fixtures and dining tables

+16

Response time3 hrs
Response rate90%
Recommended by100%of homeowners
Upworx
5.0(
1
)
Security Bars - Install or Repair - For Business

Serving Thornton, CO and surrounding areas

Approved

Free estimates

Credit card accepted

Offers commercial services

As a business, you are providing solutions and resolving others' challenges. Upworx is ready to make your business and it’s mission our top priority. We want to bring you the smoothest running operation we can, so that you can be the business you need, for all the people who rely on the great work you do every day. \n \n​ \n \nWhatever your field of business, it's vital to establish the initial basic IT infrastructure that can gradually evolve with the pace of your company's growth. Upworx strives to provide a "one-stop-shop" resource for SMBs: developing your IT infrastructure; acting like your in-house pool of resources, providing you the support you need.

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Security Doors FAQs, answered by experts

A deadbolt differs from a regular lock in its design, construction, and security level. Regular locks are typically used for interior doors, such as for bedrooms and bathrooms, and provide minimal security. They are easy to install and use, often featuring a simple locking mechanism on the inside. In contrast, a deadbolt is one of the most secure locks you can install on an exterior door. Its internal construction is designed to withstand significant force, adding a crucial layer of security that can deter intruders. While deadbolts may be more expensive and complicated to install, they are cost-effective for the security they provide and are built to hold up to wear and tear.

Insurance companies weigh the amount of potential liabilities on your property to increase (or decrease) the cost of your home insurance. They will use several factors to decide if there are more chances for peril or injury to take place at your home. These factors include your location (whether you live in an area with high risk for natural disasters), the age and condition of your home, and whether you have any “attractive nuisances”—features that both increase the aesthetic of your home and potential for injury—like a pool or treehouse. 

Home security cameras typically do not record continuously 24/7. Most options use motion detection technology to trigger recording when they sense movement or a significant change in their field of view. This approach conserves storage space and reduces the need for constant monitoring. When motion is detected, the camera starts recording and may send alerts to the homeowner. However some cameras offer the option for continuous recording, but this requires substantial storage capacity and may overwrite older footage when space runs out.

Your best bet is to install a bracket that secures to the bottom of the unit and the side of your house. You should still secure the AC unit in the open window using some of the other methods already listed, but a bracket is best to ensure that it stays put—both during operation and in case of an attempted theft.

In general, keyless door locks are considered safe, and their security depends on the type and quality of the lock. They cannot be picked like a traditional lock and often include added features like biometric access, PIN codes, and smartphone connectivity, which can make them more secure. However, they are not without risks. Potential vulnerabilities include hacking for Wi-Fi-connected models, battery failure, power outages, and technical malfunctions. To maximize security, it is important to choose a reliable brand, stay on top of software updates, and perform regular maintenance. While the risks are different, keyless locks are not considered more dangerous than traditional locks.

The Thornton, CO homeowners’ guide to security door installation services

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