Costelow Glass & Door

Licensed garage door contractor, window and glass contractor in San Diego, California

CSLB licence active5.0(136 reviews)

Costelow Glass & Door holds CSLB licence 1023332, active, licensed since 1 Feb 2017, rated 5.0 from 136 Google reviews. Bonded for $25,000 with American Contractors Indemnity Company. Clean CSLB record, with no citations, complaints or legal actions disclosed.

83score

Report card

  • Licence activeCSLB #1023332, class C17, D28. Issued 1 Feb 2017, expires 31 Jul 2028.
  • Licensed 10 yrsSince 1 Feb 2017.
  • Bonded$25,000 with American Contractors Indemnity Company, since 11 Jul 2024. California requires the same $25,000 bond of every contractor.
  • Works aloneExempt from workers' comp: certifies no employees, so nobody else may work on your job.
  • Clean CSLB recordNo citations, complaints or legal actions disclosed.CSLB record

Checked against the Contractors State License Board (CSLB) register on 4 Nov 2026.

About Costelow Glass & Door

People on the licence
Paul Andrew Costelow (qualifier, CEO and president)

Google reviews

5.0(136 reviews)
J W★★★★★ 3 weeks agoView on Google

I recently purchased a condo and had a “vision.” I wanted a mirrored wall similar to a yoga studio, and also a wall in my closet area so I could see myself floor to ceiling. I called Paul & he was awesome. He asked questions, made an appointment to see the space, gave me an estimate and was finished with the job all in about a weeks span. He is communicative and honest. He has been, by far, one of the easiest people …

T. Collins★★★★★ 4 weeks agoView on Google

TLDR: Paul here is the right choice. Great customer service, cares for your job, and does excellent work. Reasonably priced, family owned, LE friendly. 10/10. I called four people shopping for quotes with Paul being the last. Paul didn’t answer so I didn’t bother with a VM since it was the fourth call I made. Paul sent a text within a few minutes saying he would call right back after a job he was on. So Paul started…

Cameron Giardini★★★★★ 5 months agoView on Google

Paul was great to work with from start to finish. He came out quickly to measure for our custom glass shower door and was responsive throughout the entire process. You can tell he takes real pride in his work, and the final result turned out great. We really appreciated the professionalism, communication, and quality craftsmanship. Highly recommend Costelow Glass & Door!

Jared Savitz★★★★★ 4 months agoView on Google

I can’t recommend Costello Glass & Door highly enough. From start to finish, communication was excellent. Every question was answered promptly, and scheduling was easy and stress-free. The work that Costello and his son completed on my shower was exceptional. The installation was beautiful, meticulous, and, most importantly, resolved an issue that had been ongoing for decades. Their attention to detail and craftsma…

Keli Craig★★★★★ a month agoView on Google

Paul Costelow and his team at Costelow Glass & Door did an incredible job installing our new swinging shower door with a top transom, and it turned out beautifully! Paul was an absolute pleasure to work with throughout the process—polite, accountable, and a genuinely nice guy who stands by his work. Custom glass installations can have unexpected visual quirks once the hardware is up, so my best tip is to collaborate …

Read all 136 reviews on Google Reviews and photos from Google, 4 Nov 2026.

Why it ranks #5 of 68 garage door contractors in San Diego

Years licensed weight 3049%
Complaint record weight 25100%
Bond and workers' comp weight 10100%
Google reviews weight 3597%

Score 83.4 / 100. Claiming this listing or using Theo never changes it. How we rank

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