Independently Rated Highest in Quality
T w e l f t h
Consecutive Year
Originally Earned:
November 2005
We declare that SonoMarin Cleaning Services, Inc. HAS QUALIFIED for and continues to meet the Ongoing Research and Rating Requirements for Diamond Certified® status.
Certificate #780
(707) 769-9343
(415) 332-9343

SonoMarin Cleaning Services’ employees can clean hard-to-reach areas of customers’ homes.

SonoMarin Cleaning Services, Inc. provides high-end cleaning services for residential and commercial clients in Sonoma, Marin, and San Francisco Counties. In addition to cleaning bathrooms, kitchens, offices and various other rooms, the company offers exterior power washing services and performs post-construction and post-remodeling clean-up. Its comprehensive service packages range from “Basic” to “Deep Cleaning” and allow clients to create customized cleaning plans that fit their particular needs.

Owner Stanley Costa says customer service is the most important aspect of SonoMarin Cleaning Services’ operation. “Everyone who works for us understands the importance of making our clients happy. We reward our crew members for following customers’ directions, and we make sure they’re all carefully screened, selected, and trained. They’re not merely cleaners; they’re professionals in their field.”

SonoMarin Cleaning Services also provides a variety of high-end specialty services for multi-residence estates, wineries and other luxury properties. Customers can choose between receiving comprehensive cleaning services from SonoMarin’s regular staff—who use hospital-grade vacuums that are equipped with triple-filter HEPA filtration systems and environmentally-friendly, biodegradable cleaning products from Ecolab and other leading manufacturers—or having the company train an exclusive onsite crew and offer ongoing assistance and supervision. 

Company Philosophy

“Our top priority is making sure our customers always receive prompt, efficient cleaning services. We also take great pride in our responsiveness—we’re happy to handle special requests and accommodate our clients’ schedules as much as possible.”

Serving all of Sonoma, Marin and San Francisco including Santa Rosa, Rohnert Park, Novato and San Rafael, Sunset District and Richmond District.

Weekly, Bi-Weekly, Monthly
Spring & Deep Cleaning
Move-in & Move-out
Carpet & Windows
Post-Construction & Remodeling
Specialty Cleaning Services Available
Residential & Commercial
Free In-Home Estimates Available

Ecolab

Comparative Summary

Maintaining customer satisfaction is a crucial aspect of any business, but it’s even more important for house cleaning companies that have earned the prestigious Diamond Certified award. SonoMarin Cleaning Services, Inc. emphasizes the importance of customer satisfaction in every aspect of its operations, from its training methods to the way it follows up with clients. “For us,...

Frequently Asked Questions

Q: How do you charge?
A: "We charge in increments of 15 minutes. We’ll either work until we complete the agreed-upon tasks or until we reach the number of agreed-upon hours. We don’t charge flat rates based on square footage or other arbitrary formulas. If you pay fo...
Q: Do I have to provide any equipment or supplies?
A: "No, we’ll bring everything we need. In addition to our hospital-grade vacuum cleaners, sanitized microfibers and rags, approved cleaning products, and other supplies, we use steamers for surfaces that require it, and we can also supply our o...
Q: Do you reuse rags?
A: "Yes, but only after they’ve been cleaned and sterilized. Once a rag is used to clean a surface, we don’t use it again. Unlike some cleaning companies, we’ll never use the same rag in the kitchen and the bathroom, for example, nor will we eve...

Industry Info

To limit your exposure to household dust, make sure you use the proper cleaning methods.
Often, normal housekeeping isn’t enough to permanently remove dust allergens from a house. Many of the substances that make up dust can’t be removed by normal cleaning procedures, and vigorous cleaning methods can actually release more dust into the...
Findings based on statistically reliable research from 337 surveys

Customer Satisfaction

Survey Question: On a scale of 1 to 10 how satisfied were you with the quality you received?
Chart.

Company Credentials

Workers Compensation
Liability Insurance
Business Practices
Current Complaint File

Customer Loyalty

Survey Question: If you needed this product or service in the future, would you use this company again?
Chart.
97%
n = 337

Diamond Certified Qualification

Based on 337 customer surveys, we declare
SonoMarin Cleaning Services, Inc.
has passed all rating steps and has earned
The Diamond Certified Award
No. 780
Continuously qualified since November 2005.
David Pak
Director of Ratings Research
American Ratings Corporation

Verbatim Survey Responses From Only Verified Customers

G.V. Verified Customer Name
"They actually do a good job. They make a big difference on the before and after."
Research conducted by American Ratings Corporation. Ratings Methodology

Diamond Certified® Video Profile

Company Capabilities Table

SonoMarin Cleaning Services, Inc.
(707) 769-9343
(415) 332-9343
(707) 769-7287 fax

Mon – Fri: 8am – 5pm
Sat: By Appointment

Serving all of Sonoma, Marin and San Francisco including Santa Rosa, Rohnert Park, Novato and San Rafael, Sunset District and Richmond District.

Stanley Costa, Owner
20
23
Liability Insurance, Workers' Compensation
Better Business Bureau, Petaluma Chamber of Commerce
1991
Weekly, Bi-Weekly, Monthly, Spring & Deep Cleaning, Move-in & Move-out, Carpet & Windows, Post-Construction & Remodeling, Specialty Cleaning Services Available, Residential & Commercial, Free In-Home Estimates Available
Ecolab
120
Commercial, Residential

Photo & Video Gallery

Survey Responses For

SonoMarin Cleaning Services, Inc.

SonoMarin Cleaning Services, Inc.: Average 9.2 out of 10 based on 337 unique customer surveys of customer satisfaction.
G.V. Verified SonoMarin Cleaning Services, Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"We have been using them for many years, and we are satisfied."

"They actually do a good job. They make a big difference on the before and after."

Rhonda P. Verified SonoMarin Cleaning Services, Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They're very good, very thorough, and reliable."

"The thoroughness and the reliability"

Julie O. Verified SonoMarin Cleaning Services, Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"Well they are fantastic. I have already recommended them to three others. I actually paid for them to clean a friends house as a gift. I like them so much. "

"Efficient and very nice to deal with, whenever I need something or anything changes on their end, they will email or call me. They are very courteous and great overall. "

Christine C. Verified SonoMarin Cleaning Services, Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"Both the company and the cleaning people have good customer service, and they're consistent."

"It's a good value. "

Patty C. Verified SonoMarin Cleaning Services, Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They're dependable and safe."

"They're personable."

Sandy A. Verified SonoMarin Cleaning Services, Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They're pretty expensive, but it's worth it."

"I really enjoyed how quickly they were finished. It took about 1 hour."

Holly Y. Verified SonoMarin Cleaning Services, Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They are really great with communication and scheduling. They are a local, family-owned business."

"Their cleaning service in general"

Rob D. Verified SonoMarin Cleaning Services, Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They were quick and easy."

"They were quick and easy. It was very simple, and I liked that."

Chris L. Verified SonoMarin Cleaning Services, Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They are good and reliable."

"They are professional."

Sandy M. Verified SonoMarin Cleaning Services, Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They're reliable, good quality, friendly, and very family-oriented. They're very careful about our pets, and they're understanding if there are special needs. They work with you when your schedule changes. "

"The reliability"

Veronica K. Verified SonoMarin Cleaning Services, Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They did a really good job, and they were very communicative with me."

"Any questions that I asked, they answered. I even asked them about what they were using to clean the bathtub and they told me. They do a really good job."

Marilyn W. Verified SonoMarin Cleaning Services, Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"I love them. Once they broke a vase, but it wasn't an issue. The best thing was that they emailed me about the broken vase with an actual picture. They attached a loss report and asked how much it was worth. It amazed me. They are also very personable and friendly."

"Everything, honestly "

John S. Verified SonoMarin Cleaning Services, Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They're reliable, thoughtful, and effective. "

"It appears that they think about what they're doing."

Daniella C. Verified SonoMarin Cleaning Services, Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"I like Stanley. He is very professional and really cares about his clients. They are really good and better than anyone else we have used in the past."

"I like that they give you an annual schedule. They also follow up if that changes in any way."

Glenn A. Verified SonoMarin Cleaning Services, Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They're very pleasant to have in our house. They're efficient, and if they skip something, they apologize and immediately take care of it."

"Their efficiency"

Edward T. Verified SonoMarin Cleaning Services, Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They're reliable and honest."

"They did a good job cleaning."

Beverly R. Verified SonoMarin Cleaning Services, Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"I just thought they did a great job. They're also reliable and clean. "

"They were reliable, and they did a good job. "

Bob T. Verified SonoMarin Cleaning Services, Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They're very reliable, and they do what they say they're going to do."

"I liked their reliability. They're fine. They come and do everything like we want them to."

Burnett G. Verified SonoMarin Cleaning Services, Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They're very honest, and they know what they're doing. "

"They cleaned the house well. They were prompt when they came, even at a special time, and they did their job. All of my possessions were safe with them. "

Carolyn A. Verified SonoMarin Cleaning Services, Inc. Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They're really good. I trust them, and they do a good job. "

"They're always on time, and they're just really easy to deal with. I like them a lot."