Expert Door Installation & Repair
in Northfield, MN

We install and repair doors with precision – so they look right, close right, and last for years.

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Professional Door Installation & Repair Services

Your doors should open smoothly, close securely, and look like they were always meant to be there. At TrueMark Repair, we install, replace, and correct interior and exterior doors with precision and attention to detail. From new entry doors to fixing sagging or poorly aligned installs, we focus on proper fit, clean lines, and reliable function.

Blue front entry door installation with sidelights and trim detail in Northfield, MN.

    • Bedroom and bathroom doors

    • Solid core upgrades

    • Slab replacements

    • Pre-hung door installation

    • Hinge and hardware upgrades

    • Door re-alignment and adjustment

    • Fixing sticking or uneven doors

    • Entry door installation and replacement

    • Front and back doors

    • Garage entry doors

    • Weatherproofing and sealing

    • Threshold replacement

    • Frame repair and reinforcement

    • Security hardware upgrades

    • Storm door installation

    • Screen door replacement

    • Closer adjustments

    • Seasonal tune-ups

    • Bifold doors

    • Sliding closet doors

    • Pocket doors

    • French doors

    • Barn doors

    • Custom fit adjustments

    • Fixing poor fitting installs

    • Door sagging or rubbing

    • Trim adjustments

    • Frame corrections

    • Latch and alignment issues

Why Proper Door Installation Matters

• Prevents air and moisture intrusion

• Improves energy efficiency

• Protects surrounding trim and drywall

• Increases home security

• Ensures smooth daily operation

Most homeowners don’t realize how much a poorly installed door can affect comfort and performance. We take the time to install and correct doors properly — not rushed or forced into place.

Our Approach

We focus on:

• Square and level framing

• Tight, even reveals

• Secure hinge placement

• Proper shimming and insulation

• Clean, finished results

Every door is adjusted for smooth operation before we leave the job site.

Why Homeowners Choose
TrueMark Repair

• Precision installation–no shortcuts

• Clean, professional finish work

• Honest recommendations

• Clear communication start to finish

• Locally owned & fully insured

Door Installation FAQ’s

  • We offer a range of solutions designed to meet your needs—whether you're just getting started or scaling something bigger. Everything is tailored to help you move forward with clarity and confidence.

  • We offer both slab replacements and full pre-hung installations depending on the condition of the opening.

  • Yes. We correct sagging hinges, strike plate misalignment, and frame shifting.

  • Yes, as long as the door and hardware meet installation requirements

  • Yes. Proper sealing and threshold alignment are part of exterior installations.

  • "Jake did an excellent job and called me right back. We'll definitely use them again."

    —Juliana, Dundas

Ready to install or repair a door?

Request Door Estimate