How to Replace a Garage Door

February 21, 2018

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This post is in partnership with Lowe’s.

As we finish up this house and prepare to move our focus to renovating the cabin, we’re really trying to figure out how we can maximize the function of this home so we can just settle in for awhile. Perhaps one of the least-functional spaces in our home is our garage, and Lowe’s will be helping us make use of every part of it over the next few months, starting with swapping out our old garage doors. Here’s how they’ve looked since we moved in:

How to Replace an Existing Garage Door

And here’s how they look now:

How to Replace an Existing Garage Door

You can’t really tell from the before, but the doors we’ve had were in rough shape. Sometime before we bought the house the door on the left was nudged with a vehicle and was a bent out of shape. They were also commercial-grade doors, which are well-insulated, but all the weather stripping had disintegrated and the seals on the sides were warped so all that insulation wasn’t making much of a difference. Lots of cold air getting in. Yada yada, time to switch ’em out.

We hired some installers to put the doors in, and they agreed to let us document and share the process. They also give some really great tips that I think you will find helpful if you’re planning on tackling this project yourself. Though prices vary from area to area, here’s how it broke down for us:

Doors, rails, hardware etc. – ~$850 each (about $1700 total)
Professional installation – $140 per door ($280 total)

IMPORTANT NOTE: Please be advised that working with torsion springs can result in serious injury. Lowe’s can set you up with professional installation at the time of purchase, which is what we suggest if you are unfamiliar with this process. This project also uses Amarr Garage doors, supplied by Lowe’s. While some information may be specific to this situation, most of the tips are applicable across various installations.

Step 1. Remove the old torsion spring
The torsion spring connects to the door and helps it lift easier. There is a lot of tension on the spring, so be very careful as you remove it and take your time. Rushing through this part can result in serious injury.

How to Replace an Existing Garage Door

1. Insert winding bar into the winding hole of the spring. Hold it tightly and loosen the screws to free the spring. Do not let go of the winding bar, and be sure to stand off to the side in case it gets away from you.

2. Slowly loosen the spring by lowering the winding bar (while keeping it pressed into the hole firmly), inserting another winding bar into the slot above it, transferring pressure to that hand, and removing the first winding bar. Repeat until the tension is relieved.

3. Unscrew the middle torsion spring support.

4. Remove the cables and disconnect the fittings for the torsion spring from the garage door track.

5. Remove the spring and discard. Do not keep and store old torsion springs, even if they are not broken. It’s safest to just throw them out.

Step 2. Remove the old door
Most garage door panels are light on their own, but can be awkward to maneuver and may lead to back injury. When in doubt, use the buddy system.

How to Replace an Existing Garage Door

1. Unscrew the top half of each hinge.

2. Unscrew and remove the wheel from the top panel.

3. Lift the top panel out.

4. Remove remaining panels.

Step 3. Remove the old rails
If you are using new doors that are identical to the old, you can inspect your rails and potentially keep them in place if they are in good shape. If the doors are different, the rails should be removed and new rails that are meant for your new doors installed. 

How to Replace an Existing Garage Door

1. Detach the back screws/bolts.

2. Detach rails from the wall and discard.

Step 4. Prep hardware
I do this same thing whenever we have to put together IKEA furniture. Separate all of your hardware and take an inventory of the pieces you have. It will make the process go a lot faster once you actually get going.

How to Replace an Existing Garage Door

Step 5. Prep the bottom panel
The bottom panel is the one with the weather strip on the bottom. Get everything set up on this panel first, and when you put it in place it will act as a guide for where to hang your rails.

How to Replace an Existing Garage Door

1. Find the cable bracket and set it in place.

2. Lay out your wheel brackets. There should be one for each panel, with the shortest bracket going on the lowest panel, second shortest on the second and so forth. The wheel bracket for the bottom panel may look a little different (see #4 in this step).

3 & 4. Mount the cable bracket first, then the bottom panel wheel bracket over top the cable bracket (buckle up – I’m gonna use the word “bracket” a whole lot in this post).

5. Slide the wheel in place. It doesn’t attach to anything – it just floats in the slot.

Step 6. Prep the vertical rails
The rails mirror each other (one for the right side, one for the left). Make sure you have the rails oriented correctly before attaching the mounting brackets.

How to Replace an Existing Garage Door

1 & 2. Use the group of three holes to orient the rails. The holes will be closer to the end at the bottom than they will be at the top.

How to Replace an Existing Garage Door

1. Once oriented, attach the adjustable mounting brackets.

2. Attach the top mounting bracket.

Step 7. Attach the center hinges to the panels
Getting these attached now to each of the panels will help keep the doors steady while you’re putting them in place.

How to Replace an Existing Garage Door

Step 8. Place the first two panels and (kind of) attach the vertical rails to the wall
The great thing about garage doors is, you want there to be some play between the wheels and the rails. That means you don’t need to use a measuring tape, except for initially placing the door.

How to Replace an Existing Garage Door

1 & 2. Place the door and measure the right and left sides. Adjust so the door is centered.

3. Put the rail in place and attach the bottom mounting bracket to the wall (leave the top unattached for now). Again, double check that there is roughly 1/8-1/4in of wiggle room for the wheel.

4 & 5. Push the panel against the wall, pull the rail out from the wall as far as it will go (with the wheel in the track), and tighten the bottom adjustable mounting bracket. This will give the door another axis of wiggle room.

6. Add the next door panel, working the wheel into the rail, and attach the hinges.

Step 9. Add the remaining panels, except for the top

How to Replace an Existing Garage Door

Step 10. Finish mounting the vertical rail and mount one side of the horizontal rail

How to Replace an Existing Garage Door

1. Level the vertical rail and attach the top mounting bracket to the wall.

2. Using your shoulder to stabilize, loosely attach the horizontal rail to the vertical rail. Use a level to… well… make it level, and tighten.

3. Attach the mounting bracket for the torsion spring.

4. Don’t worry about the back end of the rail being attached. As long as you don’t hang on it or grab it and pull it down, it should be fine. That said, if your rails feel flimsy and like they are going to bend, you can take this opportunity to loosely connect the back end of the rail to keep it from sagging.

Step 11. Add the support beam (if applicable)
If your garage door has windows, it will likely come with a support beam so the door doesn’t flex and break as it opens and closes, day after day. Not all doors have them, but if yours does, you definitely need to use it. The beam should be installed on the top panel and connect to the garage door opener bracket.

How to Replace an Existing Garage Door

1. The support beams are rarely cut to length, so you’ll probably need to trim it. Just cut it so it’s roughly 1/2in in from the edge of the door on each side.

2. Lay the beam in place so it sits at the top of the metal structure supports of the top panel.

3. Attach to the metal frame supports on the ends and center. Use self-tapping metal screws and don’t worry about going into one of the predrilled holes. Just get it secure.

4. Attach the garage door opener bracket (if applicable) so the top part of it overlaps the support beam, and put a self-tapping metal screw right through it into the metal frame support of the panel.

Step 12. Place the top panel, and add the remaining horizontal rail
Be sure that every time you add a panel, you attach the center and side hinges.

How to Replace an Existing Garage Door

1. Lift the top panel and slide the wheel into the horizontal rail, rolling the panel downward into place.

2. Attach the horizontal rail on the other side, and secure the back ends of each horizontal rail.

Step 13. Secure the door
When you wind the torsion spring in the next step, there is the possibility that the spring is over wound and raises the door. In some cases, the door can shoot up and knock you off your ladder. Put a pair of vice grips on the rail to prevent the door from injuring you.

How to Replace an Existing Garage Door

Step 14. Install the torsion spring
I’ll say it again – be careful! Take your time and stay out of the way of your winding bars in case they slip from your hand. 

How to Replace an Existing Garage Door

1. The red screws of the torsion spring will be on the left (when looking at the door from the inside). As a reference, whatever side has the red screws, the end of the coil should be pointing up.

2. Slide the spring and cable drum onto the bar, and slide the bar into the mounting brackets you previously attached in step 10. Attach the center support bracket to the wall (it needs to be in a stud).

3. Attach the cable to the cable drum and tighten the red screws on the cable drum. You’ll want to finger tighten first, then use a wrench to tighten an additional 1/2-3/4 turn on each screw. This will give you the tension you need to keep the drum from slipping, without damaging the bar.

4. Place a pair of vice grips on the bar, tightly, against the wall. This will keep the bar from spinning as you wind the spring.

5. Wind the spring starting with your winding bar in the bottom hole and lifting up, adding the other bar into the hole now at the bottom, transferring the tension to the bottom bar and lifting up. Do this until the spring is completely wound. The general guideline is one complete rotation of the spring for every foot of door height, + 1/2 rotation. Our doors are 8ft tall, so we did 8 full rotations and one additional half rotation.

Step 15. Add exterior weather strip (if desired – though I definitely recommend it)
Weather stripping can be very helpful in extreme climates to keep out cold, rain, dust and even bugs. Weather stripping should have screws about 2 inches from the end of each piece, and approximately 12 inches apart throughout. 

How to Replace an Existing Garage Door

There it is. There were also a couple funky things with our garage doors that we took this opportunity to address. More on that next week. Anyone else gearing up for garage improvements this Spring? I have to say, I’m super excited about everything we have planned and to turn this tight garage into something that works a little better for us.








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What do you think?

  1. Mark Brown says:

    Amazing informative article on how to replace your garage door. It’s really helped me a lot. Many many thanks for sharing with us this great article. Looking forward to getting more resource about the garage. Thanks.

  2. Anthony says:

    Fantastic post, thank you!

  3. Well written and detailed article. I hope it will help me alot in Garage door services as my garage door is making noise. Thankyou.

  4. Frank says:

    I’ve been in the industry for over a decade. What’s a “wheel bracket?”

    You might want to brief your counsel on this post, as you could have blood on your hands if a homeowner decided to take on this task and as a result injure him/herself.

    • Chris says:

      There are two schools of thought on that, and I can understand what you’re saying. But for the homeowner, who is likely unfamiliar with terms like “end bearing plate,” and “cable drum,” more descriptive terms tend to be more helpful. And I think we make it clear that this is not a project to take lightly, and if someone is unsure they should hire it out.

  5. Howard Madding says:

    As being a garage door technician for 35 years, I hate seeing things like this, because it’s a recipe for someone to get hurt, first off you need to explain that the winding bars should be proper bars for winding and unwinding Springs ie. Hardened steel, secondly you forgot the part of leveling the first section and tracks so the door works properly

  6. Ellie says:

    I’d love to know your exterior paint color. Thanks!

  7. Gib says:

    I would’ve thought installation would’ve been higher than that! Not worth trying to do it myself for that price, lol.

  8. Tom says:

    Thanks! Any chance you can add a follow up to this on how best to maintain your door and springs from year to year?

  9. Bethany says:

    I actually work at a garage door company so this was really interesting to see on my favorite blog this morning! I work in the office, so to be honest I didn’t even know some of those details. I like the windows in your doors! Looks so great.

  10. Michael says:

    The easiest way to install a garage door is to call me I been installing doors for 15 years if you live in New Jersey and need a door replaced call 8482101062

  11. Travis says:

    Lowes is a great place to buy a garage door. You will not get the best deal and you will get a running around but they will get the job done. If your old or someone trying that does not know what there doing call them or me.

  12. Whitney says:

    So interesting! I had no idea installing garage doors would be so complicated. I have a question—is it just the angle, or are the windows/panels on the doors not spaced the same way? I think that would really annoy me!

    • Lindsay says:

      Same! Was the first thing I noticed, that the left windows and panels are off. I’m wondering if there is a reason for that, likefor install or otherwise? But they look great nonetheless, huge upgrade!

  13. Katie says:

    We hope to get a new garage door soon, as ours isn’t insulated and we live in Montana. Not cool. Now I know that this is something totally worth paying someone to do for us! Phew!

  14. Katie Varela says:

    Who knew you’d get so many rude/dislike comments on a post about garage doors?! But I was fascinated by it and found it very informative, even if I’d never attempt it myself. Love the blog!

  15. Jen says:

    I like the doors you chose, with the little windows! The last time we had the garage door guy out, for a problem with the opener, he said for us to be prepared to purchase a new door soon, as the arm thingy is starting to pull away from the door. Good to know about what it might cost us!

    • mark rivard says:

      your door can be repaired. stay away from that company they just want to sell you a new door. this is common practise. you think your calling a repair company but about 90% are salesmen not repair people

      • AlisonG says:

        That is so true. I have experienced it, they come equiped with many brocures to sell you an overpriced door. We found a company that fixed our door after getting an outrageous price on a door, which we didn’t have the money for. This other company fixed our door and it works better than ever.

  16. Susie says:

    Yes, i would pay $280 for installation any day. Those springs are death machines and scare the crap out of me.

  17. HeatherB says:

    Ha! As I was scrolling through, I thought step 4 said “pray” rather than “prep”! Oh, honey, let me tell you, “pray” is step #1 for me on any DIY project I do! LOL

  18. Nicole M. says:

    Installation cost actually seems quite reasonable! I would definitely spend the $140 :)

  19. Phillip says:

    These are Lowes brand Amarr Stratford 3000, I think they are called “reliabuilt” now. I’m a garage door installer so in read this post very carefully. And the first thing to consider, is that Amarr uses a very different hinge style. Other door brands like Clopay and CHI, still use original style hinges. As for the hinges, it should he noted that the side hinges be placed in the bottom of the 2 holes, there as no to pull the sections apart.

    The torsion springs are dangerous, but only hold about 180 lbs of tension for this door. As long as you are safe, you should be fine.

    • Julia says:

      Thanks for the insight, Phillip! Great to hear from a pro!

      • Phillip says:

        All in all this was a very well written guide to installation. You forgot to mention to ALWAYS set drums from left to right. And the needed tools. An Impact or drill driver with 7/16,1/2, and 9/16. A 12 point 7/16 socket and wrench. Combination wrenches, 2 pairs of vise grips. A level. And ALWAYS remember to level the bottom section before you attach track to the wall. If the floor is out of level by more than an inch. You will need to jack the track up on one side to compensate.

    • Also installer says:

      Those are actually amarr strat 2000. Vinyl back ins. The 3000 is a steel back inch d 3/8.

  20. Molly says:

    That was surprisingly fascinating- I’ve never looked up how to replace a garage door, but that was really cool! Thanks for sharing!

  21. Allison says:

    I like to DIY stuff, but this is one I wouldn’t even consider.

  22. Phoua says:

    Looks awesome! How much does it cost to buy a new garage door and for installation?

    • Chris says:

      These garage doors were around $1700 for both, and that included the springs, rails and everything else. These were also a custom size, so it cost a little more. If you have standard-sized doors, they’re really quite inexpensive. As for install, it was $140 per door.

      • mark rivard says:

        the doors look like 8×8 or 9×8 these are not custom made these are standard. you got up sold those doors are about 1200.00 for 2. so you acually paid around 700.00 for install. dont feel bad this is how the garage door industry works

  23. Jackie says:

    Don’t forget to let your insurance company know!

  24. Jenn B. says:

    That’s super dangerous. Garage doors are one of the main thing that are generally always recommended to hire out due to the energy held in the spring. I really do not think you should be recommending that messing with springs are a diy job.

    • Chris says:

      I don’t think we ever recommended someone do this themselves. That’s up to each person, and I think a lot of times homeowners will start a process before really understanding it, and find themselves in over their heads or worse, seriously injured. Sharing a process like this can often be what inspires someone to hire something out, because they realize all that is involved. I tried making it clear that serious injury is a real possibility and nobody should approach this job lightly.

  25. Lynn says:

    Installing garage door springs really is one of the items best left to the pros. If the spring snaps back it can send someone to the hospital or even kill you. It doesn’t even have to occur during install process, if improperly installed it can snap suddenly and injure those nearby. I’d definitely not advocate removing, repairing, and replacing garage door springs on your own, not worth the risk.

    • Chris says:

      I agree with this, but I extend it to other aspects of DIY as well. For example, operating a saw can end in serious injury as well, if proper care isn’t taken. I tried to make it clear in the tutorial that there is definite risk of injury, and it’s never something people should take lightly.

    • mark rivard says:

      here is another company trying to scare the consumer. springs are dangerous but if you watch a couple vidios and use the right tools anyone can do it

  26. Kaitlyn says:

    Not sure why you shared this. I don’t think this would be the right set of instructions to follow if someone we’re doing the job themselves, since you guys didn’t do it yourself.

    • Chris says:

      I think sharing the process can sometimes be the best way to let a person know they should hire someone else to do it. And for something like this, I feel like sharing the process from a professional is actually better.

      • Allison says:

        I think it’s the comment at the end that throws me off a bit: “…after documenting the process for swapping out a garage door, I’m really confident I could do it myself.”

        The documentation is shown in this post, so it might lead some people to believe that this is the guidance needed for a safe install.

      • Chris says:

        I can see that as coming across as encouragement for someone else to go ahead and do it, though not the intent. I’ll take that out – I definitely think everyone needs to be aware of when something is over their head.

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