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 316 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 = 316

Diamond Certified Qualification

Based on 316 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

Beverly R. Verified Customer Name
"They were reliable, and they did a good job. "
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 316 unique customer surveys of customer satisfaction.
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."

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

"I would tell them that they're very good, but very expensive."

"I like the way they clean."

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

"I would tell them that they're fine."

"They're very friendly, helpful, and they seem to know what they're doing. They're okay. "

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

"I've referred them before. They're incredibly talented at cleaning, and they're really consistently amazing. The house always feels incredibly clean on a deep level. They're lovely and sweet human beings. I feel pleasant having them in my home. They're very warm, nice people, who take their job to heart. They do the best job possible. "

"You just can't find a higher quality cleaning service. They're the best in the area. I loved their consistency."

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

"They are completely reliable, they always do an excellent job, and the house is always spotless when they're done."

"They're always on time and reliable. They send the same team every month, so the team knows what they're doing. "

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

"They're very good, and they're very nice people. "

"I liked their competency. "

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

"They're very professional."

"I liked that they were Diamond Certified. "

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

"They're great."

"They're very thorough. "

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

"They're prompt, clean, and neat. They take care of me."

"They're nice people. "

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

"They're very reliable, always on time, and I trust them implicitly. "

"I appreciate the fact that they don't use paper towels to clean the whole house."

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

"They're trustworthy, they do a great job, and they show up when they say they're going to. I love everything about them from the back office, the operation, and the cleaning crew. They're all fantastic."

"Everything has been wonderful. I haven't even considered anyone since I started using them."

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

"They're thorough, efficient, and pleasant."

"The thorough cleaning"

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

"They do a good job, and I think they're honest workers."

"I like their honesty best."

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

"They're professional, and they have a great team approach. They're not only great at cleaning, but the people who work for them are very friendly and very accommodating."

"They have excellent cleaning services. They surpassed my expectations."

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

"They do a very good job, and they're very thorough. What we really appreciate is that if we're not here, they will leave a note if something is broken, and we get a follow-up immediately from the owner. They never hide anything, and the owner has been very responsive with everything. They work with you so that you're happy, they're always on time, and they always call us ahead of time if they're running late and when they expect to be there. Generally, it's the same people who come out. It's usually three people, so they have continuity. "

"The level of service, you pay a premium price for their service, but you get what you pay for. Everything's been great with them."

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

"They do an excellent job."

"The thoroughness of the cleaning and the ease of use, they're very accommodating if you need to change or you need someone to come out at a different schedule. They really try to work with you."

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

"They're very trustworthy. I basically leave them a key for the house. I'm not here when they come, but there has never been any issues. They're always very meticulous, and the customer service is great. If you need to change something, it's really easy."

"The fact that I know that I don't have to be here to direct them, and it's always spotless and perfect when I get there. "