• Let Us Get That Garage Door Going Up and Down Without a Frown!

    Call
    Thornton, Colorado(303) 946-8823

    Astonishing Garage Doors

    Family Owned & Operated Garage Door Repair & Installation Company in Colorado!

    4.6
    9 Reviewspowered by 
    $99 Tune & Lube

    Service your garage door with our Tune & Lube service . Quieter operation & longer lifespan. Book now! #GarageUpgrade

    Book Your Service Today!

    Garage Door Service

    Garage Door Service

    🛠️ Garage Door Tune & Lube 🛠️

         At Astonishing Garage Doors, we know that regular maintenance is vital to keep your …
    Learn more

    Spring Replacement 🆕

         We understand that having a properly functioning garage door is essential for your …
    Learn more

    ↕️ New Liftmaster Garage Door Openers ↕️

         Welcome to Astonishing Garage Doors, where we specialize in providing top-quality …
    Learn more

    Garage Door Seal 🔨

         If you're looking for a way to improve the energy efficiency of your garage and …
    Learn more

    Garage Door Realignment

         At Astonishing Garage Doors, we understand that a garage door that has fallen out …
    Learn more

    Contact Us

    Give us a call
    (303) 946-8823
    Office location
    Thornton, Colorado
    Send us an email
    [email protected]

    Expert Help For Your Garage Door Needs - Contact us Now

    "Contact Us for Expert Garage Door Services - We'll Get Back to You Within 24 Hours or Call for Immediate Assistance!"

    "IMPORTANT: This contact form is not intended for emergency requests. If you require immediate assistance with your garage door, please call us directly at 303-946-8823. Please allow up to 24 hours for us to respond to all non-emergency requests submitted through this form. Thank you for your cooperation."

    Gallery

    50 photos

    Our Availability

    Sun
    Closed
    Mon
    -
    Tue
    -
    Wed
    -
    Thu
    -
    Fri
    -
    Sat
    -

    Google Reviews

    Glenn Iverson
    I have used them for all of my garage door maintenance needs for several years. They are very skilled, responsive and have reasonable prices.  
    Oct 30, 2024
    victoria enderle
    Our new garage door, opener, and track system looks phenomenal! Joseph had great communication and helped us finalize our order with all the...  Read more
    Nov 25, 2023
    + Add reviewAll reviews...

    Happy Clients

    Our Service Area

    Astonishing Garage Doors proudly serves the Front Range of Colorado — from Thornton (80241) to Colorado Springs (80915).

    Our technicians are available across these key areas:

    • Thornton
    • Northglenn
    • Denver
    • Arvada
    • Lakewood
    • Littleton
    • Castle Rock
    • Parker
    • Monument
    • Colorado Springs

    If you’re in this zone, we’re ready to help — fast, friendly, and always “Up and Down Without a Frown.”

    Up and Down Without A Frown