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Window Installation Awards & Badges
  • Ours was a very small project of 3 basement windows. We were pleased with the excellent communication and updates about the status of our pr... read more - Mark D. - 10/15/2019 

  • Great work! They handled replacing some unusually sized doors and were extremely professional and helpful in making decisions. - Amanda B. - 9/12/2019 

  • Great experience. Beautiful new windows. Crew installed in one day. Customer service was also great. - Jill L. - 9/12/2019 

  • On time professional, friendly. Cleaned up after themselves, courteous. Several of my neighbors have used them as well, and I wouldn’t hesi... read more - Sheila H. - 7/31/2019 

  • I had another quote from a competing window company and Lake Washington Windows had a better price. The competing window company had the s... read more - Salmon K. - 6/18/2019 

Single Hung Window Replacement

What Are Single Hung Windows?

Single hung windows, also called Sash Windows are a standard choice for modern homes. They are easy to use, have a thin profile that gives you a contemporary look and maximum view, a sash that slides up and down, and they are usually able to tilt for easy cleaning.

single-hung diagram

Benefits Of Single Hung Windows

Single hung windows are excellent. There are a lot of different types of windows, so it’s important to know the benefits of the window style that you’re interested in.

Single Hung Windows Pros

  • Weather Tight Seal – Dual weather stripping keeps the outside, outside, and the inside, inside
  • Easy To Clean – A tilt-in bottom sash that creates easy access into nooks and crannies
  • Save On Energy – Energy efficient design
  • Versatile Look – The flat exterior frame is convenient for lap siding or brick construction
  • Low-maintenance – The vinyl never needs painting

Single Vs Double Hung Windows

Double hung windows are typically more expensive because both the top hash and the bottom hash move. The fewer moving parts of the single hung window means less cost, which is typically why new home builders will often choose the single hung – to keep project prices low. Make sure you ask your window installer which they are installing.

On a single hung window only the bottom sash moves, and on a double hung window, both sashes move.

Double hung windows have two ways to decrease energy efficiency – the top and bottom sash. Both panels have to be properly weather stripped, and closed to maintain efficiency. Often times the top sash isn’t closed properly which creates a draft.

(Photo Credit: Harvey Building Products)


Single Hung Window Sizes

You can have your windows made in any size if you have custom needs. The standard size of a single hung window is 24 inches x 36 inches, but the actual size is 23.75 inches x 35.25 inches.

Single Hung Window Repair

Most repairs done on windows are replacements of the balance springs (or just balancers). Those are often easy to repair, and can be done by you. To replace the springs, remove the bottom sash window and replace the springs. See the Milgard Balancer Replacement video for detailed installations.

When it comes to replacing glass for windows, it can be time consuming if you’re unfamiliar with the process. Breaking parts is also a possibility. Double and triple pane windows only add to the time, effort, and cost.

We suggest replacing the entire window or panel (sash) for fastest service.

Single Hung Window Design

Ask us about custom window design. Here are the single hung window design styles offered by Milgard and Andersen:

Expert Window Contractors with Products you can Trust

When it comes to replacement single hung windows, Lake Washington Windows & Doors recommends the Milgard

  • Milgard Tuscany Series
  • Milgard Trinsic Series
  • Milgard Style Line Series
  • Milgard Ultra Series and
  • Milgard Aluminum Series
  • Andersen 100 Series

Milgard Windows & Doors is the largest window manufacturer in the West, and has a stellar reputation for quality and service. In fact, Milgard offers a full lifetime warranty for material and labor to you, our customer. This is one of the reasons why we have chosen to partner with Milgard Windows & Doors for replacement aluminum window products.

If you have questions or would like to receive a free consultation, please Contact Us Today!

Andersen Windows & Doors is a renowned national brand of wood, clad-wood, and composite windows.  For over 115 years, they’ve set high standards for the entire industry and, ultimately, has become America’s premier window manufacturer.

Free Replacement Estimate

Start saving energy, lower your heating bill, and improve the appearance of your home. Call the Certified Window and Door Replacement Specialists at Lake Washington Windows at (425) 255-2600 for a Free Estimate! We offer financing and payment plans too.

  • Free In-Home Estimate

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