A1 Certified Environmental

About us

-SERVICING ALL NORTHERN/SOUTHERN CA- *A-1 Environmental Services Provides: *Commercial & Residential Mold Testing *Formaldehyde Testing* *VOC Detection* (Commercial & Residential) *Meth, Cigarette and Tobacco Residue Testing and Detection*Sampling, Water Sampling for Total Coliform, Sick Building Syndrome *Thermal Imaging Inspections* *Moisture Evaluation* *Air Scrubbers For Rent* *Hydroxyl Generator For Rent*. Indoor Air Quality testing; Commercial & Residential Air Quality Testing. We have 27 years of experience in the construction industry.

Business highlights

22 years of trusted experience


Accepted payment methods

CreditCard

Reviews

4.8388 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
77%
4
9%
3
2%
2
0%
1
1%


Rating CategoryRating out of 5
quality
4.8
value
4.6
responsiveness
4.8
Showing 1-25 of 388 reviews

Adrian C.
10/2023
5.0
na

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Norma S.
08/2023
5.0
Excellent, very thorough professional service, was very pleased with the service technician he was on time, the process was explained well, I learned so much, there was a wealth of information regarding all things related to the problem I was having with the mold, how to tell if there were water leaks, or moisture and what can be done to lessen your exposure to it,. I received the report within 2 days, received an additional report from the company with an explanation. I very thankful for the service I received.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Cheryl C.
05/2023
5.0
I would recommend for air testing

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Maria F.
03/2023
5.0
Professional, organized, oriented to the details, on time, courteous, established in his field of expertise and driven by facts - Carl is the person I would always relay on to help me if there is any need for the mold inspection. He saved me thousands of dollars with his prompt tests after several crews tried to charge me for non-existing problems. Thanks Carl four your dedication to your clients and helping our community! I appreciate it very much.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Susan M.
02/2023
5.0
Responded quickly to my call for assistance, also kept me up to date on when I should expect results.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Marty G.
01/2023
5.0
They did a good job I like them thank you for the service.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Kim C.
09/2022
5.0
Very professional and kept me updated on arrival time. Report delivered within 3-5 days as expected.

Rating CategoryRating out of 5
quality
5.0
value
4.0
responsiveness
5.0

Yes, I recommend this pro

Ralph T.
08/2022
5.0
Carl is very knowledgeable and was very helpful.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Jill P.
03/2022
5.0
I looked around for mold testing help for a few days; I threw all of my belongings out according to recommendations online. When Carl arrived, he put my worries to rest and I am so very glad I will have the right test in hand in just a few days. I feel like a huge weight is off of my shoulders. Praise God! -Jill

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro
$450

Amber R.
01/2022
5.0
Carl was incredibly knowledgeable and forthcoming with the inspection process. He was very responsive and quick with a call back and scheduling. We certainly learned a lot and are incredibly grateful for the quick turn around on results!

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro
$425

Pax D.
11/2021
5.0
Very good, on time.

Rating CategoryRating out of 5
quality
4.5
value
4.5
responsiveness
4.5

Yes, I recommend this pro

Stephanie L.
11/2021
5.0
Carl was great! He explained everything he was doing and even gave me tips on natural remedies that can be used to help control mold growth in the home. I felt he was honest and knowledgeable about his work and recommendations. I received the report results quickly. I would highly recommend Carl

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro
$350

Joan F.
11/2021
3.5
Great

Rating CategoryRating out of 5
quality
3.5
value
3.5
responsiveness
3.5


Drake B.
11/2021
5.0
Professional and personable

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

David R.
09/2021
5.0
Carl called almost immediately and came to my home at 9pm for a suspected foul odor. He was extremely professional and honest. Using anyone else would be financially irresponsible.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Patty G.
09/2021
5.0
Thanks Carl !!

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Ora T.
09/2021
4.0
Was prompt , courteous and explained the process in terms I understood.

Rating CategoryRating out of 5
quality
4.0
value
5.0
responsiveness
4.5

Yes, I recommend this pro

Suzanne S.
08/2021
5.0
Carl is a wonderful combination. He is knowledgeable, friendly, and thorough. He combines technical know-how with good common sense. He also makes a point of educating his customers to save them money. I give him my highest recommendation.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro
$425

xin d.
07/2021
5.0
Were friendly

Rating CategoryRating out of 5
quality
5.0
value
4.0
responsiveness
5.0

Yes, I recommend this pro

sufia p.
07/2021
5.0
Very good

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0


Lakeview C.
07/2021
5.0
Carl is knowledgeable and courteous, prompt and thorough. He gave a great overview of which tests would be most appropriate for the future. I will use his service again, for sure!

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Stephen S.
07/2021
5.0
Excellent service. Friendly, personable, thorough and proficient.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro
$750

Patricia M.
06/2021
5.0
good

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Jeff K.
05/2021
5.0
Carl is pleasant, professional, and he patiently answered all of my questions.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Rachel S.
04/2021
5.0
Carl was superb. I had never had a mold inspection performed, and he demonstrated the equipment and showed me exactly what was going to take place. I learned a lot. With such an important test, it felt wonderful dealing with such a trustworthy professional. I will highly recommend to everyone I know. Thank-you!

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Contact information

1019 Divisadero Street, San Francisco, CA 94115

www.a-1certifiedenvironmentalservices.com

Service hours

Monday:
8:00 AM - 8:00 PM
Tuesday:
8:00 AM - 8:00 PM
Wednesday:
8:00 AM - 8:00 PM
Thursday:
8:00 AM - 8:00 PM
Friday:
8:00 AM - 8:00 PM
Saturday:
8:00 AM - 8:00 PM
Sunday:
8:00 AM - 8:00 PM

Service Categories


FAQ

Monday: 8:00 AM - 8:00 PM

Tuesday: 8:00 AM - 8:00 PM

Wednesday: 8:00 AM - 8:00 PM

Thursday: 8:00 AM - 8:00 PM

Friday: 8:00 AM - 8:00 PM

Saturday: 8:00 AM - 8:00 PM

Sunday: 8:00 AM - 8:00 PM

A1 Certified Environmental accepts the following forms of payment: CreditCard
No, A1 Certified Environmental does not offer free project estimates.
No, A1 Certified Environmental does not offer eco-friendly accreditations.
No, A1 Certified Environmental does not offer a senior discount.
No, A1 Certified Environmental does not offer emergency services.
No, A1 Certified Environmental does not offer warranties.

Contact information

1019 Divisadero Street, San Francisco, CA 94115

www.a-1certifiedenvironmentalservices.com

Service hours

Monday:
8:00 AM - 8:00 PM
Tuesday:
8:00 AM - 8:00 PM
Wednesday:
8:00 AM - 8:00 PM
Thursday:
8:00 AM - 8:00 PM
Friday:
8:00 AM - 8:00 PM
Saturday:
8:00 AM - 8:00 PM
Sunday:
8:00 AM - 8:00 PM