4.1 
137 *The Angi rating for Window Service companies in Discovery Bay, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Window Service needs.
*The HomeAdvisor rating for Window Service companies in Discovery Bay, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Window Service needs.
Last update on August 27, 2026
Serving Discovery Bay, CA and surrounding areas
Approved (Corporate)
In business since 1994
Free estimates
Warranties offered
"They did fast work installing their product. They look beautiful. I had a water leak on one of their window frames; they promptly and professionally repaired it."
Serving Discovery Bay, CA and surrounding areas
Approved
In business since 2003
Free estimates
Customers say: True professional
"The owner Jeff is amazing. His company did unbelievable work. They were efficient and clean. They were very price competitive. We could not be happier with our new windows and sliding glass door. Thanks for a great experience!"
Serving Discovery Bay, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2019
Free estimates
Emergency services offered
"I had 4 sunscreen shades put on my windows. Window was cleaned first and then the screen installed. The screens are made according to your window size. Very happy with the service and would definitely use them again."
+59
Serving Discovery Bay, CA and surrounding areas
Approved
In business since 2017
Free estimates
Credit card accepted
Looking for sparkling clean windows? Look no further! RT Cleaning Maintenance is your go-to window cleaning service in the San Francisco Bay Area. Our team of experts will leave your windows crystal clear and streak-free. Contact us today for a brighter, more beautiful home!
+5
Serving Discovery Bay, CA and surrounding areas
Approved
In business since 2025
Free estimates
Emergency services offered
"Clear Edge is the clear choice for your door and windows needs! Professional, great value and service! A++++"
+9
Serving Discovery Bay, CA and surrounding areas
Approved
In business since 2021
Free estimates
Credit card accepted
We take great pride our experience, expertise, quality, and customer service that we provide to meet the consumer need. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.
Serving Discovery Bay, CA and surrounding areas
Approved (Corporate)
In business since 2008
Free estimates
Warranties offered
"Professional and courteous installers, 29 windows in 3 days and nice tidy finish. A bit messy while under construction, but it is to be expected"
+39
Serving Discovery Bay, CA and surrounding areas
Approved
In business since 2021
Free estimates
Offers commercial services
"Very professional, quick but fid s great job cleaning our windows."
+16
Serving Discovery Bay, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2021
Free estimates
Warranties offered
"Just if they canâ t show up during the 4 hr window, please call if youâ re showing up late"
+9
Serving Discovery Bay, CA and surrounding areas
Approved
In business since 2001
Free estimates
Emergency services offered
"They did an excellent job and I highly recommend them for window replacement work. Gary Chern provided a very clear presentation of the company and the windows they offer with various options. Larry Khimich was very communicative with the details of the scope of work and their crew did an excellent job. They damaged one lawn decoration that we discovered later and they provided payment for replacement of the decoration. Mistakes happen and they made good on the damage. They did the work in October and it is now the end of March. No problems and we are very happy with our new windows!"
+112
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