Door Installation and Repair in Fort Collins and Surrounding Areas

Serving Berthoud, Johnstown, Fort Collins, Loveland, Windsor, or surrounding Northern Colorado areas

Established in 1998 - Fully Licensed and Insured - Detail-Oriented

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Trusted Door Installation & Repair in Fort Collins

When your front door binds in midwinter or a sliding patio door no longer glides smoothly, you need more than a quick fix. You need a team with deep experience in Fort Collins homes and the demands of Northern Colorado’s climate.


At J Allen Construction, we’ve helped Northern Colorado homeowners upgrade, repair, and secure doors with workmanship designed to last. Licensed and insured, and established here in the community, we’re trusted throughout Fort Collins for detail-forward installation and clean, professional execution.


What We Offer: Full-Service Door Solutions for Your Home

Every home experiences door wear differently, from weather exposure and seasonal movement to years of daily use. We help you restore performance, improve comfort, and elevate the overall look of your entryways. Here’s how we can help keep your house comfortable, secure, and looking sharp:


  • Entry Doors – Solid, secure, and designed to elevate curb appeal while enhancing safety.
  • Sliding & Patio Doors – Smooth-operating options that connect indoor and outdoor living while improving efficiency.
  • French Doors – Timeless design that brings in natural light and creates a refined sense of space.
  • Screen & Storm Doors – Comfort-focused additions that allow fresh air in while keeping the elements out.
  • Door Repairs & Adjustments – Precision tuning for hinges, alignment, frames, and weather seals that improves operation and longevity.

If your door is underperforming or ready for an upgrade, we can repair it, replace it, or fine-tune the details so it operates the way it should.

Why Choose Us: Local Know-How, No Shortcuts

When you work with us, you’re choosing an established Northern Colorado builder with decades of experience in local homes. We understand how high-plains wind, temperature swings, and intense sun affect door frames, seals, and long-term performance.


Every project includes licensed and insured work, background-checked team members, and craftsmanship we stand behind. We provide clear options, transparent estimates, and a level of finish that reflects the standards we hold for our own work.



It’s why many Fort Collins homeowners return to us for additional projects. Our reputation is built on repeat clients, referrals, and consistent attention to detail—project after project.


Our Process: Simple, Straightforward, Stress-Free

We understand that home projects can feel overwhelming, so we keep the experience clear, organized, and predictable. Here’s what to expect when you contact us about a door in your home:


  1. Assessment & Options – We arrive onsite, evaluate the door carefully, and walk you through what we’re seeing. In some cases, a targeted repair is the best solution. In others, replacement offers better long-term performance. Either way, you’ll understand the reasoning behind our recommendation.
  2. Up-Front Estimate – You’ll receive a clear, itemized estimate and an expected timeline before work begins. No vague promises and no shifting numbers.
  3. Installation or Repair – We protect your home, work neatly, and focus on precision. Whether we’re adjusting hardware or installing a new entry door, we prioritize fit, function, and finish from the start.
  4. Walkthrough & Follow-Up – Before we wrap up, you’ll test the door yourself and confirm everything feels right. If any adjustment is needed, we address it immediately. And if questions come up afterward, our team is easy to reach.

Homeowner Tips: Keeping Your Doors in Good Shape

Not every squeak or draft requires professional service. With a little routine care, many Fort Collins homeowners can extend the life and performance of their doors:


  • Winter Prep – Cold weather can cause wood to contract and hardware to feel tighter. Lubricating hinges and locks in late fall helps doors operate smoothly through winter.
  • Spring Adjustments – Seasonal humidity and temperature swings can lead to minor swelling or shifting. Tightening hinge screws or adjusting the strike plate often resolves mid-season sticking.
  • Sun Protection – West-facing wood doors take consistent exposure from Colorado sun. Reapplying a UV-resistant finish every few years helps prevent fading, drying, and cracking.
  • Sliding Door Care – Remove debris from the track and clean the rollers regularly. Small maintenance steps can dramatically improve how smoothly patio doors glide.


Watch for more serious issues like warped frames, cracked panels, or locks that no longer align and latch reliably. That’s typically the point where professional repair or replacement is the smarter next step. Think of routine care as ongoing maintenance, and our team as your resource when performance or security needs a higher-level fix.

Service Area & Coverage

We’re proud to serve Fort Collins and the communities that surround it—because your home deserves a crew that knows the lay of the land. You’ll find us working in:

  • Fort Collins

  • Loveland

  • Windsor

  • Johnstown

  • Berthoud

Surrounding neighborhoods throughout Northern Colorado

FAQ: Your Fort Collins Door Installation Questions 

  • Can you match the style of my existing doors?
    Yes. Whether your home leans traditional, modern, or somewhere in between, we’ll help you find a door that blends seamlessly.


  • Will you remove and dispose of the old door?
    Always. We’ll take it away and make sure it’s handled properly—no heavy lifting left for you.


What Folks Around Here Are Saying

Marvin J

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We used J Allen for a complete kitchen and master bath remodel and was extremely pleased with the finished products. Jerry and his team provided innovative suggestions in the design and the attention to detail and workmanship was outstanding. We are now using J Allen to build our new home!

Richard S

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Great people working for you!!!

tj v

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I was working in Germany when we contracted J. Allen Construction to build our retirement home in Colorado. We selected J. Allen Construction due to their exceptional reputation for quality construction, professional integrity and commitment to maintain schedule. We knew that even though we weren't present to inspect construction, that Jerry Allen would build the house as if it was his own. Over the last 20 years J. Allen Construction has contacted us every year to inspect the house for necessary repairs or upgrades and used his quality construction crew and subs to perform any needed work. We highly recommend J. Allen Construction. Quality, Integrity, and Service are the fundamentals of this company.

Ready to Fix or Upgrade Your Doors?

If your door’s sticking, sagging, or just plain worn out, don’t let it keep frustrating you; we’re here to help. At J Allen Construction, we’ve built our name on straightforward service and solid workmanship, and we treat every project like we’re working on our own home.


Give us a call or send us an email today to schedule your estimate. Whether you need a brand-new entry door, a quick repair, or an emergency fix, we’ll show up when we say we will and get the job done right.


We’re local, we’re licensed, and we’re ready to make your doors work the way they should. Let’s get started.


Contact Us

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Fort Collins , CO 80524

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