Learning Center

Learning Center » Windows

How to Replace Aluminum Windows

How to Replace Aluminum Windows

Not every window replacement will go smoothly. While the removal of old aluminum windows can be challenging, it will definitely be worth it.

What You’ll Need

The window replacement process starts long before the installation. Usually, you can get windows of the same size to replace the old ones with no problem. Take all corner measurements before buying new windows to be sure that they will fit into the openings with minimal alterations made. When shopping for new windows, be sure that you are buying ones that match your needs and that they have a proper warranty that covers you in the case of breaks and shatters during installation.

Step 1 – Remove the Old Window

The first step is to take out the old window frames and put them aside. Generally, the framing for aluminum is very leaky in terms of air pressure, since they are just screwed into the window. The frames are held in with screws that go through the window jamb and into the framing of your house.ย 

Take out the windows to keep them from falling out while dismantling them and put them aside. They should have pins that you can slide to the sides to remove the windows from the frame. If you pull the window out toward you and give it a 45-degree turn, they should come right out.

Next, unscrew the metal jamb from the space where your aluminum window frames come together. The screws should be found along the top and bottom of the frame. Just remove them, and the jamb should simply fall out without much effort. When the old aluminum frame is clear, you should have the 2×4 wall studs across all sides of the opening.

Step 2 – Inserting the New Framing

Once your metal window frames are out of the way, you need to install your new sill. Check your measurements before going forward to avoid having to repeat your work. If your window is bigger than your opening, you may need to extend the opening so that it will fit. In order to do this, you can use a crowbar to pull out the old studs and then extend them as necessary, but remember to leave 1 to 2 inches around the edges of the jamb to allow for further adjustments.

Step 3 – Installing the Windows

Now you should have a new window in place where your old aluminum window frames used to be. You will need to use your level and shims to make sure they are level and correctly situated before you attach them to the frame. This is to be sure that your windows will open and have a good seal when they are closed. Once you are sure everything is level, attach the window frame trimming, which will help hide the working parts of your window.

Are you looking to replace your old windows? We can help! Schedule a free window demonstration today!ย 

Get a Free Estimate Today

60% off installation. Special financing available. See details.

Get My Free Estimate

Enter today for a chance to win a $50,000 home exterior makeover!

Enter Now

60% off installation or no interest and no payments for two years.

Labor Only. Roofing and siding priced by the square. Not combinable with other offers/promotions. Offer may be withdrawn without notice. Prior sales excluded. Must purchase by 3/31/24 to qualify for special offer. Lifetime Guarantee is for roofing, siding, windows, and gutters. Bathtub and showers offer a no-leak guarantee. Other restrictions may apply.

Disclosure:ย Plan 2541. Subject to credit approval. Rates range from 14.43% โ€“ 18.84% APR (interest rates range from 17.99% โ€“ 24.99%). Loan amount and rate will vary based on your income and creditworthiness. 24-month promotional period (โ€œPromo Periodโ€) during which interest is billed but will be waived if the amount financed is paid in full before Promo Period expires. Monthly payments are not required during the Promo Period. Any unpaid balance and amounts owed after Promo Period will be paid over 84 monthly payments. For example, assuming the full credit limit is used on loan approval date and no payments are made during Promo Period, for every $1,000 financed at a fixed interest rate of 24.99%, 24 monthly payments of $0 followed by 84 monthly payments of $31.26. This example is an estimate only. Actual payment amounts based on amount and timing of purchases. Call 866-936-0602 for financing costs and terms. Financing for the GreenSkyยฎ consumer loan program is provided by Equal Opportunity Lenders. GreenSkyยฎ is a registered trademark of GreenSky, LLC, a subsidiary of Goldman Sachs Bank USA. NMLS #1416362. Loans originated by Goldman Sachs are issued by Goldman Sachs Bank USA, Salt Lake City Branch.

Sachs are issued by Goldman Sachs Bank USA, Salt Lake City Branch. NMLS #208156.ย www.nmlsconsumeraccess.org