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 51-75 of 388 reviews

Ryan S.
03/2020
5.0
Carl taught me a lot and this is exactly what I was looking for from a mold inspection. He got here on the same day I reached out and it was on a Sunday. Highly recommend!

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Denise J.
02/2020
5.0
I am very happy with the great work and customer service, Keenan took the time to answer my questions and not talk down to me. They are a 10 in my book!

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Karen B.
12/2019
5.0
,First time using home advisor. I will look here now first every time I need help! He did a great job!

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro
$350

Jeffrey O.
12/2019
5.0
A1 (Carl) provided excellent professional service very quickly, on my schedule, and on time. I recommend him to anyone needing such services. Thank you Carl!

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro
$1,650

stephen h.
12/2019
5.0
Carl was super professional and very helpful in understanding my situation and how to remedy it.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Shirley D.
12/2019
5.0
Carl Gibbons is very professional and knowledgeable about air quality issues - highly recommend!

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Princess V.
11/2019
5.0
He was on time, professional, knowledgeable, and followed up with test results right away. Excellent work that can be trusted. I was 9 months pregnant and my landlord was trying to hire a non-licensed contractor to do some asbestos removal so I needed to make sure that everything was totally clear of contaminants when his work was done. Thankfully the test results came back clear.

Rating CategoryRating out of 5
quality
4.5
value
5.0
responsiveness
4.5

Yes, I recommend this pro

Douglas F.
10/2019
5.0
Carl was professional. He is the owner of this company and takes his job seriously. He explained everything that he was doing. He had me take pictures of certain things, in case I decide to take my landlords to court for this mold taking over my bathrooms.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Michael W.
09/2019
5.0
What a great human being and absolutely impeccable service he was so informative that taught us so much he is a first-class inspector when he decided to come to my house after hours no problem that was the exact service I was looking for and I actually owe all this to Home Advisor HomeAdvisor did a great job for me he was really good at what he does and his price was really fair I don't know why anyone would call anyone else and I'd be willing to put my reputation on that and I would give him a good reference if you could give him my phone number for someone that needs a good reference again thank you all getting my problem squared away

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Vee T.
09/2019
5.0
Very pleasant and knowledgeable.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro
$350

julie k.
09/2019
4.5
good

Rating CategoryRating out of 5
quality
4.5
value
5.0
responsiveness
4.0

Yes, I recommend this pro
$550

Ash S.
08/2019
5.0
Outstanding service! Carl is a true professional, and you can tell he just enjoys helping people. I'm really glad we chose A-1 Certified over the competition!

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

James R.
08/2019
5.0
The technician took the time to explain each step and made sure that I understood the process. He was very upfront that he was there to only test for mold and determine the safety of the household. The results were received in a timely manner from the lab and afforded me the ability to determine the next steps without a lot of pressure.

Rating CategoryRating out of 5
quality
5.0
value
4.0
responsiveness
5.0

Yes, I recommend this pro

Lucille d.
08/2019
5.0
Gives very good advice.

Rating CategoryRating out of 5
quality
4.5
value
4.0
responsiveness
4.5

Yes, I recommend this pro
$425

Pia A.
07/2019
5.0
Carl with A1 Certified Environmental was great and explained what he was doing and what the test for mold could indicate. I would recommend his company for testing. I received the results and that put my mind at ease. I have implemented the suggestions given to me and I am having fewer allergic reactions to the air in my house. Thank you

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro
$425

William M.
07/2019
5.0
Keenon was very knowledgeable answered all my questions.

Rating CategoryRating out of 5
quality
5.0
value
4.0
responsiveness
5.0

Yes, I recommend this pro

Sterling A.
07/2019
5.0
The technician was fantastic. He arrived early, explain how it works. And was out in less than 30 minutes. A wonderful experience we use him again

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Tad C.
07/2019
5.0
Apt was scheduled for the next day and he was on time.

Rating CategoryRating out of 5
quality
5.0
value
4.0
responsiveness
5.0

Yes, I recommend this pro

Spencer S.
06/2019
5.0
Great experience

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro
$350

Dorthy W.
06/2019
5.0
A1 Certified was professional and courteous for starters. They were on time, and shared valuable information about mold/mold abatement. Testing results were needed prior to the time frame and the gentleman that did our testing, called the lab and rushed the results.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Angela M.
06/2019
5.0
He arrived on time; with all his equipment in good working order. His testing for mold was through and the lab responded quickly. I would have appreciated a bit more explanation of the report I received but the money was well spent.

Rating CategoryRating out of 5
quality
5.0
value
4.5
responsiveness
4.5

Yes, I recommend this pro
$350

Natalie M.
06/2019
5.0
Keenan was amazing and very informative.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Erin W.
05/2019
5.0
Responsive and thorough. Keenan was great. Competitively priced.

Rating CategoryRating out of 5
quality
5.0
value
4.0
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