Bring Your Flat Roof Back To Life! Prevent Standing Rainwater FOREVER

Here are a few benefits


Roof drains that are sitting too high on the roof are one of the main causes of pooling rainwater. 

Installing a roof drain sump pan will lower the roof drain 2″ and will prevent standing rainwater FOREVER!

It is a FAST and cost effective solution to roof drainage problems 

Frank Pattern Roof Drain Kits

Frank Pattern combination roof drain, model SCP roof drain sump pan
  • 8-1/2″  combo drains
  • roof drain sump pans
  • more brands coming 

Jay R. Smith Roof Drain Kits

JR Smith 1010 roof drain and model LSP sump pan
  • 8-1/2″, 12″ and 15-1/2″ drains
  • Deck plates and sump pans 
  • more brands coming 

Zurn Roof Drain Kits

Zurn ZC100 cast iron 15" roof drain and model Z100-89 roof drain, LCP sump pan
  • 8-1/2″, 12″ & 15-1/2″ roof drains
  • Deck plates and sump pans
  • more brands coming  

No minimum purchase - choose any quantity - build your kit, mix and match brands and sizes - no sales tax to non-Calif customers

We're committed to your success

Engineers reviewing plans

At Custom Roof Drain Pans Co., we are committed to helping you get the exact right materials for your project. With our parent company, All Tech Plumbing, we can provide excellent product and installation help. Please don’t hesitate to call or email us. ALL of our customer service is in the USA with knowledgeable and experienced English speaking techs. 

Customer Support

(949) 297-8689

Here are just a few of the many benefits our customers enjoy

Which Industry Professionals Use These Products?

Contractors - Architects - Engineers - Project Managers - Builders - Facility Managers

Our valued customers love using their flat roof drain pan


Coming Soon.. More innovations from Custom Roof Drain Pans Co.
  • More roof drain brands!
  • AutoCAD and Revit documents  
  • LCP and LSP pans will be accepting 12″ & 15″ roof drains in side outlet
  • Get notified. Send us your contact info

Need A Large Order?


Currently shipping to the Continental USA. Alaska, Hawaii, and Canada

SAVE shipping costs Buy Locally

  • 30 pieces or more? (any size order). Call or email for a custom quote

Need More Info Before Buying? No problem, check out these resources...

Looking For Roof Drain & Pan Spec Sheets?

Get downloadable pdf dox

  1. Call and speak to an experienced plumber. This is 100% FREE!
  2. Send us your specs/plans and drawings.

Find Out How To Install A Roof Drain

  1. Here are 8 basic steps for installing a roof drain. used by a professional plumber

BLOG Articles

  1. Here is a ton of related info on roof drain tech to better assist you in understanding the subject. 

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  1. We have new tech videos being released. Subscribe and ring the bell if you would like to get notified. 

We Have Excellent Tech Support Staff Ready To Answer Your Questions

  • Send us your specs/plans/drawings. We’re plumbing contractors and may be able to assist
  • Visit our installation page, blog or FAQ pages for technical info
  • Call and speak to our trained techs
  • M – F, 8 am to 5 pm, PST Calif USA

(949) 297-8689

prices are subject to change without notice. All copyright and patent laws apply.