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 26-50 of 388 reviews

Jordan F.
03/2021
4.5
Very friendly with a lot of experience.

Rating CategoryRating out of 5
quality
4.5
value
4.5
responsiveness
4.5

Yes, I recommend this pro

Christopher P.
03/2021
5.0
was very informative on the topic

Rating CategoryRating out of 5
quality
4.5
value
4.5
responsiveness
4.5

Yes, I recommend this pro
$350

Kelley S.
03/2021
5.0
Carl from A1 was the first to call back, scheduled an appointment the very next day. He was prompt, extremely knowledgeable, efficient, and his Years of experience was apparent. As the many reviews stated, "trust and honesty" were the highlights of his character. Furthermore, Carl was a decent empathetic person. His integrity and honesty was forefront. I STRONGLY URGE others to hire his services. It is of upmost importance to have a person that is trustworthy in your home. Thank you Carl!

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Tania M.
03/2021
5.0
Very professional and doesn't try to contract before even knowing if your place has mold or not.

Rating CategoryRating out of 5
quality
5.0
value
4.5
responsiveness
5.0

Yes, I recommend this pro
$325

Peter P.
03/2021
5.0
they were excellent I am pleased

Rating CategoryRating out of 5
quality
5.0
value
4.0
responsiveness
5.0

Yes, I recommend this pro

Vicky L.
01/2021
5.0
Very polite and informative

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro
$299

Bill D.
12/2020
5.0
Carl was informative

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro
$350

Nicholas Z.
12/2020
5.0
Fast, friendly, and very knowledgeable about home construction in general.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Dennis O.
12/2020
5.0
Fast reply, didn't try to upsell, explained job concisely, followed up with analysis of results. This company only tests and depending on results will let you know if job requires remediation experts or can be a DIY.

Rating CategoryRating out of 5
quality
5.0
value
4.0
responsiveness
5.0

Yes, I recommend this pro
$375

Raleigh L.
11/2020
5.0
Amazing company. Carl was super knowledgeable and helpful regarding mold inspection.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro
$425

Jennifer C.
10/2020
5.0
Carl was very helpful and informative, pointing out areas that might need attention to reduce risk of mold, being very clear about the process and timeline. He was very responsive to any questions and I felt confident that I was getting expert advice and information.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
4.5

Yes, I recommend this pro

John G.
09/2020
4.0
Courteous professional

Rating CategoryRating out of 5
quality
4.0
value
3.0
responsiveness
5.0

Yes, I recommend this pro

Megan S.
08/2020
5.0
Professional, knowledgeable, trustworthy. We would definitely hire them again.

Rating CategoryRating out of 5
quality
4.5
value
5.0
responsiveness
5.0

Yes, I recommend this pro
$800

MELISSA P.
08/2020
5.0
Karl was excellent and very helpful. he explained every step and the reasoning behind every step and gave tips to get the most out of it for the money. we appreciated is hard work ethics, honesty, helpfulness and dedication to his business. Excellent company. highly recommend for any job you need.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro
$450

Bashir Z.
08/2020
5.0
I rarely write reviews but this one is definitely deserved. Carl is an exceptional man who is an expert in this field of environmental testing. I strongly recommend contacting him for your testing needs. He arrived with a great approach (especially with covid circumstances), relevant and understanding to my particular needs for testing on furniture, very professional and a true pleasure to be around. I will most certainly contact him in the future.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Rick C.
08/2020
5.0
Great company

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Kusha W.
07/2020
4.5
all well done and explained thank you

Rating CategoryRating out of 5
quality
5.0
value
4.0
responsiveness
5.0

Yes, I recommend this pro

Sterling A.
06/2020
5.0
Was very friendly, even came early, explain to me how it works. Was very knowledgeable done a fantastic job,We will definitely call him back for the next job

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

DeLois T.
06/2020
5.0
Explained what was going to be done, time frame for tests where results would be sent time frame for report. Very professional and polite. Would use again if needed and recommend to anyone who need service.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

MIKE T.
06/2020
4.5
.

Rating CategoryRating out of 5
quality
4.5
value
4.5
responsiveness
4.5

Yes, I recommend this pro
$500

Dan R.
06/2020
5.0
Save yourself the headache of calling a bunch of companies and just go with Carl. He'll get the job done quickly with no bs. He'll also teach you a lot about your house and how to prevent future mold outbreaks or where to expect them.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro
$425

William K.
05/2020
5.0
Atanas put together a 16 by 12 gazebo on his own. I was amazed he was able to this 3 person job on this own. It was a challenge due to the fact the Gazebo was next to my house so the logistics needed to be worked out. He was creative and fair in pricing. He has also done plumbing work for me that was not completed by another plumber. Overall great handy man and I highly recommend him for your handyman needs.

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Lance M.
03/2020
5.0
Took time out to explain everything and now I have a better knowledge

Rating CategoryRating out of 5
quality
5.0
value
5.0
responsiveness
5.0

Yes, I recommend this pro

Ron E.
03/2020
5.0
Peace of mind , they gave me all the Information I needed

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