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TRUSTED BY ALTA LOMA, CA HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon273
    Verified window services reviews

Top-Rated Window pros in Alta Loma - Updated Nov 2026

Avatar for Renewal by Andersen of Greater San Diego
Renewal by Andersen of Greater San Diego
4.7(
43
)
New Windows - 3-5New Windows - 6 +New Windows - 2+6 more

Serving Alta Loma, CA and surrounding areas

Approved

In business since 1995

Free estimates

Warranties offered

"This is our second window installation with Renewal By Anderson. We had an outstanding experience our first time around, and today our much anticipated installation of two very large stationary windows took place. Bebe and Ryan were our installers for this job. They were awesome!! They were friendly, they were prompt, and they even helped me figure out how to contact Anderson about a window screen that has been damaged by my landscapers. I very much appreciated their professionalism and their extra attention to detail. I highly recommend Renewal by Anderson for replacement windows. Thanks Bebe and Ryan, you guys are the best!!!"
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+10

Response time6 days
Response rate100%
23 neighbors recently requested a quote
Avatar for Window Wizards
Window Wizards
5.0(
9
)
Window Cleaning

Serving Alta Loma, CA and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

"Window Wizards did an excellent job. They pressure washed my driveway, walkway, back patio, and also washed and cleaned my patio doors. Window Wizards was very professional and did a thorough job and I would definitely hire them again and refer them to others."
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+3

2 neighbors recently requested a quote
Recommended by100%of homeowners
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Windows FAQs, answered by experts

Generally speaking, you should clean your windows and any associated fixtures and treatments every six months. Otherwise, clean them as needed to keep everything running smoothly. If you live in a part of the country with especially hard water, you may have to clean them three or four times per year, and the same goes for areas where insects, pollen, dirt, and other debris can soil your windows and potentially cause issues with the moving parts.

Mulled windows are no less efficient than individual windows, provided the wall opening is the same size. Larger wall openings filled with glass will always reduce overall energy efficiency, as glass transmits heat more readily than a solid wall. If the windows that are mulled together have the same square footage as individual windows, you might actually see a small decrease in your electric bills, as mulled windows let in more natural light that can reduce interior lighting costs.

When specifying window sizes, manufacturers use a standard four-digit code system. The first two numbers represent window width, and the last two represent window height. For example, a window with a code of 2917 has dimensions of 2 feet, 9 inches wide by 1 foot, 7 inches high. Windows with even dimensions include zeros as placeholders. For example, a window that is 5 feet wide by 2 feet high would have a code of 5020.

A garden window is about 16 inches to 24 inches deep. This extra space makes room for small potted plants, which is how the garden window, also called a greenhouse window, got its name. Because garden windows jut outward from the house, they need to be installed in a place where they won’t obstruct walkways.

To lower your home’s humidity level overnight, you can open your windows when the air is less damp. This tactic allows air to circulate around the window, preventing condensation from forming. However, you should consider the disadvantages of leaving your windows open overnight, including safety risks and pest intrusions.

The Alta Loma, CA homeowners’ guide to window services

From average costs to expert advice, get all the answers you need to get your job done.