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Environmental Science Services
Environmental Science Services
Environmental Science Services, is a locally owned and operated company that values honesty and integrity and treats your home/business as if it were our own. We offer a variety services that include testing for mold and asbestos, customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction! Call us today at 916-417-5361 for FREE over the phone pricing on all jobs!!
"Very satisfied how quickly they came out and got the test results that evening."
Virginia V on July 2021
Environmental Science Services, is a locally owned and operated company that values honesty and integrity and treats your home/business as if it were our own. We offer a variety services that include testing for mold and asbestos, customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction! Call us today at 916-417-5361 for FREE over the phone pricing on all jobs!!
"Very satisfied how quickly they came out and got the test results that evening."
Virginia V on July 2021

Mold Test Company NO CA
Mold Test Company NO CA
At Mold Test Company NOCA, we take great pride in the experience, expertise, quality, and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship, and complete customer satisfaction from start to completion of a project. In order to understand the needs, and expectations of our customers, we take great care to work, and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.
"- Great work, very happy with it "
Suha K on September 2025
At Mold Test Company NOCA, we take great pride in the experience, expertise, quality, and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship, and complete customer satisfaction from start to completion of a project. In order to understand the needs, and expectations of our customers, we take great care to work, and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.
"- Great work, very happy with it "
Suha K on September 2025

North State Pure Maintenance-Unlicensed Contractor
North State Pure Maintenance-Unlicensed Contractor
North State Pure Maintenance is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.
"I highly recommend North State Pure Maintenance! Ron and his daughter were thorough with cleaning the mold. They were kind and attentive to my questions. Iâ m very happy with the job they did for me."
Star P on May 2024
North State Pure Maintenance is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.
"I highly recommend North State Pure Maintenance! Ron and his daughter were thorough with cleaning the mold. They were kind and attentive to my questions. Iâ m very happy with the job they did for me."
Star P on May 2024
Mold Test Company Western Hub
Mold Test Company Western Hub
At Mold Test Company NOCA, we take great pride in the experience, expertise, quality, and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship, and complete customer satisfaction from start to completion of a project. In order to understand the needs, and expectations of our customers, we take great care to work, and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.
At Mold Test Company NOCA, we take great pride in the experience, expertise, quality, and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship, and complete customer satisfaction from start to completion of a project. In order to understand the needs, and expectations of our customers, we take great care to work, and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

Environmental Testing & Research Laboratories, Inc
Environmental Testing & Research Laboratories, Inc
ETR Laboratories in an analytic laboratory with a broad range of commercial, industrial and individual clients. We provide analytic services using a wide variety of scientific methods including GC/MS, IC/MS, GIR, NMR and SEM equipment. We can do particle analysis, organic and inorganic chemical analysis and micro analysis on biological and other materials. Private water analysis is our specialty. Award winning. Additional DBA - Environmental Testing & Research Laboratories Inc, ETR Labs, ETR Laboratories.
"as advertised"
Nancy C on July 2018
ETR Laboratories in an analytic laboratory with a broad range of commercial, industrial and individual clients. We provide analytic services using a wide variety of scientific methods including GC/MS, IC/MS, GIR, NMR and SEM equipment. We can do particle analysis, organic and inorganic chemical analysis and micro analysis on biological and other materials. Private water analysis is our specialty. Award winning. Additional DBA - Environmental Testing & Research Laboratories Inc, ETR Labs, ETR Laboratories.
"as advertised"
Nancy C on July 2018
Moldlab
Moldlab
Mold identification, mold test kits and testing supplies. If you suspect you have a mold problem give us a call toll free and we can walk you through your testing options.
"The self-test product was as expected. The reports require additional research to interpret and understand, so seemed more targeted at professionals."
Jessica H on February 2018
Mold identification, mold test kits and testing supplies. If you suspect you have a mold problem give us a call toll free and we can walk you through your testing options.
"The self-test product was as expected. The reports require additional research to interpret and understand, so seemed more targeted at professionals."
Jessica H on February 2018

Landmark Energy Upgrades
Landmark Energy Upgrades
Whether your project is a new construction, custom built home, an existing remodel, or an energy efficient upgrade, Landmark Construction has the industry experience and skilled staff to make your construction project a success. Our goal is to save you money through energy-efficient construction. Landmark Construction is California’s premier Air-Conditioning Contractor and Heating Contractor. Along with HVAC contracting we can better regulate your home’s temperature with new insulation and a new roof. Landmark Construction doesn’t stop at just energy upgrades. When it comes to renovations of existing homes, we pride ourselves in the ability to maintain your home’s charm and style with solutions for every kind of interior need from tile, drywall accents and wainscoting detail, cabinetry and countertop selection, to redesigning entire interior floor plans. Our network of interior designers can help you get just the look you envisioned from your remodeling or new construction project. We proudly serve Southern California including Bel Air, San Marino, Malibu, Calabasas, Beverly Hills, Century City, Encino, Brentwood and everywhere in between! When clients want to build it strong, build it beautiful, they build it Landmark! Do not hesitate to contact us regarding your next general construction project in Southern California. We look forward to providing you with a free, no obligation consultation today!
"Ezra and Charles are very friendly and personable. That is, when they want to take your money. What good is a 12-year warranty if you start ignoring your customers at 2 years. I needed my HVAC replaced. Because the HVAC sits on my roof, I decided to redo the roof too. Ezra and Charles came out and were really friendly so I immediately had a good impression of them. Even though it would’ve been cheaper to go with a roofer and a separate HVAC company, I decided to go with Landmark Construction Crew, aka Landmark Energy Upgrades. I figured it would be a more seamless process for one company to do both. I got this done in December of 2016. The thing with a roof is that you don’t know if it’s a good job or not until it rains so I waited to write a review. Around January 2018 ( a little over a year later ) we got some much needed rain but unfortunately, I had a leak coming from one of my vents. I emailed Ezra and he sent out a roofer. The roofer came, looked at the vent, jumped up on the roof for ten minutes and said he was done. Months later, it rained again, it leaked again, I emailed Ezra again. I decided to take a closer look at the vent and noticed that there was sunlight in the ductwork. I figured sunlight equals gap somewhere. When the roofer came, I told him and he said it’s nothing, probably just a reflection, without even taking a look. Then the roofer tells me that the next time there is a leak, I need to call the HVAC guy because it’s not a roof problem. I couldn’t believe it so I told him that HIS company IS the HVAC guy!! I used one company to do the roof and the HVAC so there is NOBODY else to blame. So, he jumps back on the roof and was done and gone in 10 minutes. About a month goes by and the rain is back and so is my leak. It’s 2019 so it rained a lot this year. Good for California, bad for me. So, I emailed Ezra again. After a few weeks, no reply. So, I email him again with pictures, a few more weeks go by and no reply. So, I call him and he picked up the phone. He sounded surprised to hear from me (probably didn’t recognize my phone number) and I start telling him about the leak. He said he didn’t get my emails but just text him my address and he’ll send somebody. A couple of weeks goes by and nothing. So, I text him again and after weeks and weeks of waiting, no reply. I’ve emailed, called, and texted so, at this point, it’s very obvious he’s avoiding me. If you are looking for a friendly company that is willing to take your hard-earned cash then Landmark is for you. But if you’re looking for a company that is accountable for their work then look elsewhere. I know I am."
Tony T on March 2019
Whether your project is a new construction, custom built home, an existing remodel, or an energy efficient upgrade, Landmark Construction has the industry experience and skilled staff to make your construction project a success. Our goal is to save you money through energy-efficient construction. Landmark Construction is California’s premier Air-Conditioning Contractor and Heating Contractor. Along with HVAC contracting we can better regulate your home’s temperature with new insulation and a new roof. Landmark Construction doesn’t stop at just energy upgrades. When it comes to renovations of existing homes, we pride ourselves in the ability to maintain your home’s charm and style with solutions for every kind of interior need from tile, drywall accents and wainscoting detail, cabinetry and countertop selection, to redesigning entire interior floor plans. Our network of interior designers can help you get just the look you envisioned from your remodeling or new construction project. We proudly serve Southern California including Bel Air, San Marino, Malibu, Calabasas, Beverly Hills, Century City, Encino, Brentwood and everywhere in between! When clients want to build it strong, build it beautiful, they build it Landmark! Do not hesitate to contact us regarding your next general construction project in Southern California. We look forward to providing you with a free, no obligation consultation today!
"Ezra and Charles are very friendly and personable. That is, when they want to take your money. What good is a 12-year warranty if you start ignoring your customers at 2 years. I needed my HVAC replaced. Because the HVAC sits on my roof, I decided to redo the roof too. Ezra and Charles came out and were really friendly so I immediately had a good impression of them. Even though it would’ve been cheaper to go with a roofer and a separate HVAC company, I decided to go with Landmark Construction Crew, aka Landmark Energy Upgrades. I figured it would be a more seamless process for one company to do both. I got this done in December of 2016. The thing with a roof is that you don’t know if it’s a good job or not until it rains so I waited to write a review. Around January 2018 ( a little over a year later ) we got some much needed rain but unfortunately, I had a leak coming from one of my vents. I emailed Ezra and he sent out a roofer. The roofer came, looked at the vent, jumped up on the roof for ten minutes and said he was done. Months later, it rained again, it leaked again, I emailed Ezra again. I decided to take a closer look at the vent and noticed that there was sunlight in the ductwork. I figured sunlight equals gap somewhere. When the roofer came, I told him and he said it’s nothing, probably just a reflection, without even taking a look. Then the roofer tells me that the next time there is a leak, I need to call the HVAC guy because it’s not a roof problem. I couldn’t believe it so I told him that HIS company IS the HVAC guy!! I used one company to do the roof and the HVAC so there is NOBODY else to blame. So, he jumps back on the roof and was done and gone in 10 minutes. About a month goes by and the rain is back and so is my leak. It’s 2019 so it rained a lot this year. Good for California, bad for me. So, I emailed Ezra again. After a few weeks, no reply. So, I email him again with pictures, a few more weeks go by and no reply. So, I call him and he picked up the phone. He sounded surprised to hear from me (probably didn’t recognize my phone number) and I start telling him about the leak. He said he didn’t get my emails but just text him my address and he’ll send somebody. A couple of weeks goes by and nothing. So, I text him again and after weeks and weeks of waiting, no reply. I’ve emailed, called, and texted so, at this point, it’s very obvious he’s avoiding me. If you are looking for a friendly company that is willing to take your hard-earned cash then Landmark is for you. But if you’re looking for a company that is accountable for their work then look elsewhere. I know I am."
Tony T on March 2019

A/C Filters 4 Less
A/C Filters 4 Less
We have many filters available in stock, in all sizes, ready for shipment. Most filters ship next day and we never charge extra for shipping. We specialize in hard to find sizes. We can custom make any size that you are looking for in a variety of different AC Filters or Furnace Filters. We have been in the air conditioning business since 1980 and we are family owned and operated. Our number 1 goal is customer satisfaction. We strive to give all of our customers excellent service. We have distribution facilities located strategically throughout the United States helping us get your furnace and a/c filters to you as efficiently as possible. We have serviced thousands of customers throughout the United States including all types of commercial and residential applications. If you have any questions our knowledgeable staff is here to help you find the right filtration that best fits your needs by making sure you get the right type of filter you are looking for. Even if you buy your air conditioning or furnace filters from a supply house. We can save you time, money, and gas. We offer lower prices and our filters are delivered right to your door.
We have many filters available in stock, in all sizes, ready for shipment. Most filters ship next day and we never charge extra for shipping. We specialize in hard to find sizes. We can custom make any size that you are looking for in a variety of different AC Filters or Furnace Filters. We have been in the air conditioning business since 1980 and we are family owned and operated. Our number 1 goal is customer satisfaction. We strive to give all of our customers excellent service. We have distribution facilities located strategically throughout the United States helping us get your furnace and a/c filters to you as efficiently as possible. We have serviced thousands of customers throughout the United States including all types of commercial and residential applications. If you have any questions our knowledgeable staff is here to help you find the right filtration that best fits your needs by making sure you get the right type of filter you are looking for. Even if you buy your air conditioning or furnace filters from a supply house. We can save you time, money, and gas. We offer lower prices and our filters are delivered right to your door.
PuroClean Disaster First Response
PuroClean Disaster First Response
Local Expert Water, Fire, Smoke and Mold Restoration in Fayetteville, North Carolina. Call for fast, local 24x7 response.
"Avoid these people!!!!!! They are the worst. They tell you lie after lie and take forever to do the work. My insurance company called them in even though it was not in my best interest. I regret the day I let them in my front door, and I regret the day I let Allstate insure my house."
Margaret M on November 2018
Local Expert Water, Fire, Smoke and Mold Restoration in Fayetteville, North Carolina. Call for fast, local 24x7 response.
"Avoid these people!!!!!! They are the worst. They tell you lie after lie and take forever to do the work. My insurance company called them in even though it was not in my best interest. I regret the day I let them in my front door, and I regret the day I let Allstate insure my house."
Margaret M on November 2018
Global Plasma Solutions
Global Plasma Solutions
Global Plasma Solutions is a manufacturing company that sells air purification systems primarily into the commercial and residential markets. Home owners can benenfit from our systems as they are easily adapted to any HVAC system. Go to www.gpshvac.com to find a certified contractor near you to have one installed within your home.
Global Plasma Solutions is a manufacturing company that sells air purification systems primarily into the commercial and residential markets. Home owners can benenfit from our systems as they are easily adapted to any HVAC system. Go to www.gpshvac.com to find a certified contractor near you to have one installed within your home.
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