Security Doors

Security Door Installation in Erie, CO

Protect What Matters with Professionally Installed Security Doors

At Altitude Door, we believe the strength of your entry points is the foundation of your property’s security. Whether you're running a business, managing a facility, or protecting your home, our security door installation services are designed to deliver peace of mind and lasting protection.



We install reinforced, tamper-resistant doors for commercial, industrial, and residential properties across Erie, CO and surrounding areas. Backed by 35+ years of combined experience, we understand how to match the right materials, locking systems, and structural features to your unique needs — without compromising on appearance or usability.

Gray door in a wooden building with a small window, security camera, and light. A black van is partially visible.

Our Security Door Services

New Security Door Installation

We offer a variety of high-performance doors designed for security, including:


  • Solid-core steel entry doors
  • Commercial aluminum doors with reinforced glazing
  • Security-rated glass storefront doors
  • Fire-rated doors with enhanced lock systems
  • Access-controlled doors with card readers or keypads

Each door is installed with code-compliant hardware and frame reinforcement to prevent bypass attempts and meet local regulations.

Security Door Replacement

Old doors with weak frames, exposed hinges, or corroded hardware are easy targets. We replace outdated doors with modern security-grade alternatives — matched to your building's structure and appearance.

Hardware & Lock Upgrades

We can retrofit existing doors with upgraded locking systems, tamper-proof hinges, closer arms, and emergency bar hardware. Integration with access control is also available.

Emergency Reinforcement & Boarding

After a break-in or attempted forced entry, we offer rapid-response boarding services and replacement to secure your building quickly and professionally.

What Is a Security Door?

A security door is more than a heavy door — it’s an entry system designed to resist break-ins, protect property, and delay forced entry attempts. These doors combine:


  • Reinforced steel or solid-core materials
  • Tamper-resistant hinges and fasteners
  • Commercial-grade locks and deadbolts
  • Optional access control integration
  • Fire-rated or insulated construction (when needed)

We install both pre-fabricated and custom-built security door solutions for a variety of applications, helping our clients secure front entries, employee entrances, loading docks, emergency exits, and more.

Who Needs a Security Door?

Security doors are a smart investment for any property where safety, liability, or asset protection are priorities.



We install secure entry solutions for:


  • Retail businesses & storefronts
  • Office buildings
  • Warehouses & industrial sites
  • Multi-tenant residential buildings
  • Medical facilities & labs
  • High-value residential homes
  • Schools, churches, and community centers

Whether you’re responding to a past break-in or proactively upgrading your building’s protection, we can help assess risks and recommend a solution that fits.

Why Altitude Door?

We’re not just another commercial installer. As a family-owned business based in Erie, Colorado, we bring a combination of personal accountability and big-project expertise to every security door job.


What sets us apart:


  • Over 35 years of hands-on experience with secure commercial doors
  • Knowledge of both physical and electronic security integration
  • Customized recommendations — not one-size-fits-all solutions
  • Clean installations that meet inspection and fire safety requirements
  • Trusted by businesses and homeowners across Boulder County

We take the time to understand your specific concerns and make practical, effective recommendations — without pushing products you don’t need.

Common Door Security Problems We Fix

If your current entryways aren’t giving you peace of mind, it’s time to upgrade. Some of the most common issues we address include:



  • Doors that flex or rattle with pressure
  • Outdated locks or failing closers
  • Easily removable hinges or exposed hardware
  • Weak frames not reinforced to resist prying
  • Glass doors without protective laminate or security film
  • No integration with access control or alarm systems

We’ll evaluate your current setup and propose targeted improvements — whether it’s a complete door system or just better hardware and reinforcement.

FAQs – Security Doors

  • Do I need a specific type of lock for a security door?

    Yes — we recommend commercial-grade deadbolts, multi-point locks, or electrified hardware depending on your security level. We’ll guide you to the right option.

  • Can you integrate security doors with access control?

    Absolutely. We install doors that work seamlessly with keypads, card readers, and remote entry systems.

  • Are your security doors fire-rated?

    Yes, fire-rated models are available and often required for commercial interiors. We’ll ensure your door meets code for both security and fire safety.

  • Do you service existing doors or only install new ones?

    We do both. We can replace components, reinforce your current door, or install a full new system — depending on what your space needs.

  • Is your work compliant with building codes and insurance standards?

    Yes — we stay current with local and national code requirements and ensure our installs pass inspections and meet insurer standards.

Gray door with a panic bar, in a commercial hallway.

Request a Security Door Quote Today

Don't wait for a break-in to upgrade your doors. Whether you're starting from scratch or replacing outdated systems, Altitude Door provides reliable, professional security door installation tailored to your needs.