Expect to pay an average of $300-$700 per window for replacements placed inside existing (and structurally intact) window frames, but it could go as high as $1,000 per window, for a range of $3,000-$10,000 for a one-story, three-bedroom home with 10 windows. Larger, two-story homes with more windows can run $10,000-$20,000. Double- and triple-glazed windows, or those filled with argon gas increase energy savings but bump the cost to the higher end of the scale.
If the existing window frame is rotted or damaged in any way, the frame must be rebuilt. This are called new construction windows, and can cost as much as 50-100 percent more than replacement windows, or $5,000-$40,000 for completely rebuilding all the windows in a home.

What should be included:

A window installer should remove the existing windows, install the new ones, cleanup and dispose of the old windows, and wash the new windows. Estimates are usually based on united inches, which is equal to the sum of the length and width of each window; a 40x55-inch window is 95 united inches. HomeTime.com[1] gives quick definitions of standard window terms, such as apron, casing, glazing, mullion and more.
Vinyl windows are usually the least expensive; other window framing materials include wood, aluminum, steel and Fiberglas. DoItYourself.com[2] provides an overview.
Better Homes & Gardens[3] lists 25 things to know about windows in general, while DoItYourself.com[4] discusses distinctive window shapes that can add "personality" to a home.
An energy star[5] label means greater savings on heating and air conditioning; the American Council for an Energy Efficient Economy[6] explains exactly what's needed for an energy-efficient window and the Efficient Window Collaborative[7] compares different types of windows by state based on climate conditions. Top energy efficiency may mean different types of windows on different sides of the same home, depending on sun and weather exposure.

Additional costs:

Extensive dry rot or other damage around existing windows may require repairs before new windows can be installed; the cost will depend on the amount and type of work needed.
Be sure the estimate includes disposing of the old windows.
Replacing non-standard-sized windows requires either custom windows or enlarging the old opening to accommodate a larger standard size, which can up costs by 50-100 percent per window.

Discounts:

When dealing with non-standard-sized windows, check with many manufacturers; your window might be a nonstandard size for one but standard for another, which saves the cost of enlarging the window opening.
Some people purchase windows through a local home improvement store or other outlet, then save money by hiring a local handyman to install them. Be sure the handyman has the skills and experience needed to do a thorough, well-sealed and leak-proof job.
Installing windows yourself may save $35-$100 or more per window, but be sure you understand all the moisture and weatherproofing requirements; mistakes can lead to dry rot or other problems.

Shopping for replacement windows:

For ideas on what type of windows would look and function best, check the photo galleries provided by manufacturers Pella[8] , Milgard[9] and Andersen[10] . Other companies, large and small, are listed with the Window and Door Manufacturers Association[11] . Manufacturers' websites provide links to local companies who sell and install their products.
Replacement windows with or without professional installation are available through Lowe's[12] .
Get estimates from several companies. Ask for and contact references, and make sure the company is properly bonded and insured. A deposit will be required, but don't pay the full amount until the job is finished to your complete satisfaction, especially when hiring a local handyman to do the installation.

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sliding vinyl window quote

Amount: $7,600.00

Posted by: Steven H in San Diego, CA.	Posted: December 29th, 2021 09:12AM
Number of Windows: 3	Number Lineal Inches: 376
Brand: Alside	Window Type: sliding
Installer: DaBella

After a 2.5 hour sales pitch, this was their quote. No way i would take it at >$20 united inch
They also quoted gutters at $3800 for a really easy, mostly straight roofline...

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