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BBB Accreditation

A BBB Accredited Business since

BBB has determined that Preferred Plumbing & Drain meets BBB accreditation standards, which include a commitment to make a good faith effort to resolve any consumer complaints. BBB Accredited Businesses pay a fee for accreditation review/monitoring and for support of BBB services to the public.

BBB accreditation does not mean that the business' products or services have been evaluated or endorsed by BBB, or that BBB has made a determination as to the business' product quality or competency in performing services.

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Reason for Rating

BBB rating is based on 13 factors. Get the details about the factors considered.

Factors that raised the rating for Preferred Plumbing & Drain include:

  • Length of time business has been operating
  • Complaint volume filed with BBB for business of this size
  • Response to 13 complaint(s) filed against business
  • Resolution of complaint(s) filed against business

Customer Complaints Summary Read complaint details

13 complaints closed with BBB in last 3 years | 4 closed in last 12 months
Complaint Type Total Closed Complaints
Advertising/Sales Issues 2
Billing/Collection Issues 1
Delivery Issues 0
Guarantee/Warranty Issues 0
Problems with Product/Service 10
Total Closed Complaints 13

Customer Reviews Summary Read customer reviews

3 Customer Reviews on Preferred Plumbing & Drain
Customer Experience Total Customer Reviews
Positive Experience 1
Neutral Experience 0
Negative Experience 2
Total Customer Reviews 3

Additional Information

BBB file opened: August 06, 2007 Business started: 11/30/2004 Business incorporated 11/30/2004 in CA
Licensing, Bonding or Registration

This business is in an industry that may require professional licensing, bonding or registration. BBB encourages you to check with the appropriate agency to be certain any requirements are currently being met.

These agencies may include:

Contractor's State License Board
9821 Business Park Drive, Sacramento CA 95827
Phone Number: (800) 321-2752
The number is 856944.

Type of Entity


Business Management
Ms. Kathleen Graves, President Mr. Luis Duarte, Office Manager(Sacramento Location) Mr. Bryan Graves, Vice President
Contact Information
Principal: Ms. Kathleen Graves, President
Business Category

Plumbers Plumbing - Contractor Plumbing Drains & Sewer Cleaning Sewer Contractors Water Heaters - Repairing Leak Detection Septic Tanks & Systems Cleaning

Alternate Business Names
Graves 6, Inc. Graves 7, Inc.
Products & Services

Preferred Plumbing & Drain specialize in plumbing and sewer contracting services.

Industry Tips
Hiring a Contractor in California: Essential Tips

Customer Review Rating plus BBB Rating Summary

Preferred Plumbing & Drain has received 4.12 out of 5 stars based on 3 Customer Reviews and a BBB Rating of A+.

BBB Customer Review Rating plus BBB Rating Overview

BBB Customer Review Rating plus BBB Rating Overview

BBB Customer Reviews Rating represents the customers opinions of the business. The Customer Review Rating is based on the number of positive, neutral and negative customer reviews posted that are calculated to produce a score.

Customer Review Experience Value
Positive Review 5 points per review
Neutral Review 3 points per review
Negative Review 1 point per review

BBB letter grades represent the BBB's opinion of the business. The BBB grade is based on BBB file information about the business. In some cases, a business' grade may be lowered if the BBB does not have sufficient information about the business despite BBB requests for that information from the business.

BBB Letter Grade Scale

BBB Rating Value
A+ 5
A 4.66
A- 4.33
B+ 4
B 3.66
B- 3.33
C+ 3
C 2.66
C- 2.33
D+ 2
D 1.66
D- 1.33
F 1
NR -----
Star Rating scale

  Average Score
5 stars 5.00
4.5 stars 4.50-4.99
4 stars 4.00-4.49
3.5 stars 3.50-3.99
3 stars 3.00-3.49
2.5 stars 2.50-2.99
2 stars 2.00-2.49
1.5 stars 1.50-1.99
1 star 0-1.49

BBB Customer Review Rating plus BBB Rating is not a guarantee of a business' reliability or performance, and BBB recommends that consumers consider a business' BBB Rating and Customer Review Rating in addition to all other available information about the business. If the BBB Rating is NR then only Customer Reviews are used for the Star Rating.