
Serving San Jose, CA and surrounding areas
Approved
In business since 1992
Free estimates
Emergency services offered
"Very satisfied how quickly they came out and got the test results that evening."





+3


Serving San Jose, CA and surrounding areas
Approved
In business since 1992
Free estimates
Emergency services offered
"Very satisfied how quickly they came out and got the test results that evening."





+3
Serving San Jose, CA and surrounding areas
In business since 1995
Free estimates
Warranties offered
"I had to test for asbestos quickly. This company was great. Online instructions for collection were easy and I received my results in 24 hours. Great experience."

Serving San Jose, CA and surrounding areas
In business since 2001
Free estimates
Warranties offered
"Very easy to reach. The people answering the phones were extremely knowledgeable and spoke English fluently. We faxed back the contact and had an appointment in a few days, even though they were very busy. We contacted many companies before using this one, because of their expertise and specific plan for inspection. Our situation was unusual. We bought a house where the acoustic ceilings were removed without prior testing. <br /> The tester came on-time and was very professional. He knew exactly where to get the wall samples, so they would also have joint compound samples. He cleaned up after himself. We got the reports exactly on-time. We would use them again if we need more testing. <br />"

Serving San Jose, CA and surrounding areas
In business since 1985
Free estimates
Warranties offered
"Amazing! They showed up on time and worked very hard to stay on deadline. I'm completely happy with the results"

Serving San Jose, CA and surrounding areas
In business since 2005
Free estimates
Warranties offered
"Certified-Environmental was highly recommended by a company I've used and trusted in the past (Pacific Reconstruction, INC) when I used them to remediate some water related damage. The post 'clean-up' required hiring a company that was highly knowledgeable and experienced in quality air testing in order to make sure the remediation efforts had effectively addressed all issues. Pacific Reconstruction provided the contact info for Certified-Environmental and let's say it was the BEST CALL I could have made!! Mr Richard Gray provided me with a detailed description of what needed to take place and the reasons for the extensive testing. He was highly informative, but also made it a point to patiently translate the detailed complicated terminology for my layman's understanding. I am so grateful to have found Certified - Environmental Inc as they are EXTREMELY well versed and knowledgeable in what is a highly technical and scientific arena. Richard Gray and his partner/daughter Jayce, are an EXCEPTIONAL TEAM ... I've used their services a few times now and HIGHLY RECOMMEND their company."
Serving San Jose, CA and surrounding areas
In business since 1995
Free estimates
Emergency services offered
"Communication was OK. David Mouser was a bit spotty, but generally responded well. There was a lot of back and forth, until it was finally settled that the original contractor would pay Alliance to clean up the mess. <br /> <br /> Alliance came in, set up, and in one day cleared the job. <br /> <br /> I took a little off the rating because I never quite got the followup I expected. The first crew left all the sheeting and negative air pressure equipment in place and just left. I later learned that's because a second crew is supposed to come by, do testing, and tear down. I never saw the results of the testing and air sampling. It was unclear how much of a mess the original fraudulent contractor had made: for example ducts may have been dragged through a suspended ceiling. Having some test results would have given comfort that the job is really "done". Instead the job was very constrained to just one area. <br /> <br /> Also unfortunately: one old unused asbestos boot got forgotten. It was not on the bid list, there is no blame here, it just got overlooked. The sad part is to clear that up means facing the entire process again: plastic sheeting, negative air pressure, bunny suited young workers... all for about 3 minutes of work to yank the duct. <br /> <br /> --------- <br /> Side note: all the workers were young. Asbestos removal though may be a better job for the old. If an Asbestos cancer takes 30 years to mature, then 60 or 70 year old workers face far fewer risks."
Serving San Jose, CA and surrounding areas
In business since 1999
Free estimates
Emergency services offered
"They where very friendly when they where there working. They had showed up on time to do the work. They had done a good job at cleaning up when they where done."
Serving San Jose, CA and surrounding areas
In business since 2000
Free estimates
Emergency services offered
"Z-con was a little hard to contact (they didn't always call back in a timely manner). However, the work appears to have been done very well--they hauled away (in plastic bags), the asbestos-wrapped materials. They also completely removed an old heater system that was attached to the ducting. Their price was competitive and their workers arrived on time and left the work area clean and free of debris/material. They also did a good job covering up all of the ducts inside the house before removing the asbestos under the house."

Serving San Jose, CA and surrounding areas
In business since 2012
Free estimates
Emergency services offered
"I needed help evaluating the safety of my deck which was being rebuilt. David was very helpful, accommodating my schedule by coming in the evening. He was so thorough, courteous, informative and went above and beyond pointing out potential problem areas and giving me guidelines. I am extremely grateful and impressed with the outstanding customer service. Thank you David! :-) <br />"

Serving San Jose, CA and surrounding areas
In business since 1982
Free estimates
Emergency services offered
"They email me every so often and they follow up with me as far as where I'm at in the decision process instead of just blowing it off or dropping the lead. We had other quotes and P W Stephens seems to be higher so I guess that's the other side of it. Just on the surface, they seem to be more interested in following up which I think is a good thing. On the other side of it, they were significantly higher than other quotes but those other quotes didn't follow up. With mold remediation, honestly I don't want to pay thousands more just because they followed up. This is one of those bottom line kinds of things. This is the kind of thing where no one will see it, you just need to pass an air test. It's not like kitchen remodeling where people will see it and so they will be able to judge how well your kitchen looks. With mold remediation, either it passes or it doesn't so I don't want to spend thousands more to pass the test. The other side of P W Stephens right now is they seem to have more of a follow through on customer's interest but they seem to be significantly more."
From average costs to expert advice, get all the answers you need to get your job done.

Budget for mold remediation costs based on factors such as severity, location in the home, type of mold, damage type, and more.

Budget for mold inspection costs based on factors such as the size of your home, testing type, mold type, location, accessibility, and more.

Curious who installs radon mitigation systems? Learn who to hire, why specialists matter, and what radon mitigation costs so you can take safe action now.

Not sure who to call for mold removal? See when to hire a mold specialist or restoration pro, plus costs and steps to expect.

Curious who to call for a mold inspection? Discover mold inspection costs, pro options, and what to expect before you book.

Find who to call to test water for lead. Learn when to hire a certified water testing professional or state-certified laboratory and what to expect.