Environmental & DISASTER Services in California & WEST COAST

For two generations, we have served California and the West Coast as MBE/DBE General Contractors for environmental cleanups, disaster response, environmental testing/monitoring, heavy metals remediation, carcinogen mitigation, fire debris removal, land clearing/wildfire, demolition, HAZMAT/decontamination, air monitoring, contaminated soil, arborist/tree care, sensitive ecosystems, invasive species/biology, infectious disease, mold/ERMI testing, water testing, narcotics/meth labs, PFAS monitoring, lithium/battery fires, soot/fire/smoke damage, compaction testing, subject matter expert/consult, employee OSHA training, green infrastructure, cannabis compliance, soil/erosion management, landlord advocacy (evictions, hoarding, drugs, homeless), toxin remediation (PERC, VOCs, PFAS, PCBs, Dioxins), permit compliance (AQMD, DTSC, EPA, Water Board), radioactive materials, and more.

We are MBE/DBE/Federal/Tribal/Military/Public Works/GSA and Los Angeles-Preferred contractors. All laborers HAZWOPER & Bloodborne-Pathogen Certified. HAZMAT/environmental engineers, industrial hygienists, and QSDs/QSPs/QISPs on staff.

Danger Icon

Disaster response, fire debris removal, demolition, land clearing, heavy metals/carcinogens, air monitoring, soil sampling, smoke damage, hazard tree removal. HAZMAT Engineers on staff.

Danger Icon

SoCal’s only HAZWOPER service for land clearing, firescaping, forestry, tree removal, arborist/tree care, spraying and weed abatement, Integrated Pest Management, and more. LTOs/Arborists on staff.

Danger Icon

HAZMAT, contaminated soils, heavy metals, PFAS, PERC, VOCs, soil sampling, excavation, Underground Storage Tanks (USTs), dust/air monitoring, AQMD-1166, waste profiling, and more.

Danger Icon

Water testing for public health and Water Board compliance, including Legionella, PFAS, dioxins, Radon, coliform, metals, pesticides, wetlands protection, etc. QSDs/QISPs/QSPs on staff.

Danger Icon

Testing in all hazardous environments, including radioactive, fire/smoke damage, PFAS, mold, hexavalent chromium, Radon, dioxins, PCBs, heavy metals, battery fires. Industrial Hygienists on staff.

Danger Icon

Comprehensive mold and microbiological testing support, including ERMI, surface, air testing; West Nile Virus/Hantavirus; legal and medical consulting, and more. Industrial Hygienists on staff.

Danger Icon

Expert legal/medical consulting for all HAZMAT, environmental, disaster, fire, mold, health/safety, warehouse fires, toxicological hazards; landlord and tenant advocacy, and more.

Danger Icon

Comprehensive “tree doctor” services, including arborist reports, bacteriological and fungal testing, environmental impacts, sensitive wetlands, Integrated Pest Management, bark beetles, and more.

Danger Icon

Meth, MDMA, fentanyl lab cleanups; residue testing for narcotics, battery fire impacts and carcinogens, legal consult, landlord/tenant advocacy, etc. HAZMAT Engineers on staff.

Gas Mask

More Licensing & Authority than our Competitors

General Engineering “A”, Hazardous Substance Removal, C-27 (Landscaping), C49 (Tree/Palm), Licensed Timber Operator (LTO) Certified Arborists, Industrial Hygienists on staff, Lead Inspectors, Mold Inspectors, Radon/Radioactive, Biohazard/Crime Scene/Meth Lab Remediation Specialists, Fire Restoration Specialists, Indoor Air Quality Professionals, Pest Control/Integrated Pest Management, Trauma Waste, Stormwater licenses (QSD, QSP, QISP, CPESC, CISEC, WPCPM), and more…

See why we beat our Competitors…

Minority Business Enterprise

MBE/DBE/Federal/Public Works means we’re your Invaluable Bidding Partner

Certified Minority-Owned (MBE), Disadvantaged (DBE), Small Business (SB-PW), Federal (8A, GSA, SAM), and Tribal/Native American, Public Works licensed, CALTrans approved, Federal Pipeline/DOT contractor, certified payroll/prevailing wage, fully bonded and insured, and all HAZWOPER certified and OSHA Bloodborne Pathogen labor. CalFire Incident Safety Awareness certifications, T-1 California/OSHA Annual Trenching/Excavation Permit…

See why we beat our Competitors…

US Federal Contractor

Broader Scope means more Comprehensive Solutions

environmental cleanups, testing/monitoring, heavy metals remediation, carcinogen mitigation, fire debris removal, land clearing/wildfire, demolition, HAZMAT, air monitoring, contaminated soil, arborist/tree care, sensitive ecosystems, infectious disease, mold/ERMI testing, water testing, narcotics/meth labs, PFAS monitoring, lithium/battery fires, soot/fire/smoke damage, compaction testing, subject matter expert/consult, green infrastructure, cannabis compliance, soil/erosion management, landlord advocacy, PERC, VOCs, PFAS, PCBs, Dioxins, permit compliance, radioactive materials, and more…

​​See why we beat our Competitors…

Top 10 of 2024 and Top 10 of 2025 by Environmental Business Outlook. Mayfield Environmental Engineering (dba Mayfield Environmental Solutions) is a California-based General Engineering contractor servicing the West Coast for environmental cleanups, disaster response, heavy metals/carcinogen remediation, fire debris removal/land clearing, demolition and HAZMAT, contaminated soils, arborist/tree care, sensitive ecosystems, PFAS monitoring, lithium/battery fires, toxin remediation (PERC, VOCs, PFAS, PCBs, Dioxins), permit compliance (AQMD, DTSC, EPA, Water Board), radioactive material testing, and many more services for public works, private developments, and major Superfund/CRCLA sites. We were among the largest private HAZMAT contractors in the Palisades/Eaton Fire Disaster and many other disasters. We are certified Minority-Owned/MBE, Disadvantaged Business/MBE, and Small Business-Public Works/SBPW. Previously as Mayfield Enterprises, we have over two generations of high-profile project management experience since 1985. We have contracted with the City of Cerritos, Norwalk, Carson, Santa Fe Springs, and more governments in addition to high-risk environments like Exide Superfund, Ascon Superfund, Cal Compact Landfill, BKK Landfill, China Lake Naval Base, Camp Pendleton, Torrance Chemical Superfund, OII Superfund, WDI Superfund, and more for decades. The company is family-owned and currently headed by CEO James Mayfield and based out of Long Beach with our main yard in the City of Carson. We are registered for Public Works in California, CalTRANS, and Federal & Tribal projects.



See our Licensure, Experience, Famous Projects, and History…

EXCELLENT
Google star 1Google star 2Google star 3Google star 4Google star 5
Based on 44 reviews
Posted on Google Google
Gretchen Dalton profile picture
Gretchen Dalton
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I lost my home in the Eaton Fire and finally got around to looking for a contractor to complete the debris removal of all the stuff the Army Corps of Engineers DIDN'T remove after the fire. This was a difficult process in its own way. It was the removal of most of my driveway, the sidewalk that led to what had been my front porch, the cement patio where I had entertained so many loved ones, miscellaneous fence posts, weeds and burned branches as well as other personal items that survived the fire itself but not it's aftereffects. James was so calm and confident in his ability to not only do the actual job but in his willingness to help me navigate his contract with the constraints of my insurance allowances. He was very competitive with his bid and actually came in under budget because he wasn't upcharging for his many licenses and certificates in hazardous waste and disposal. His crew wore full face respirators on the first day as they removed 3" of grass from my backyard lawn and they also wore safety vests. The crew was professional from start to finish and they knew what they were doing. I can't recommend Mayfield Environmental Engineering highly enough. James, Justin and the crew came into an emotionally difficult situation for me and just plain handled the situation with excellence, complete competence, and a quiet assurance that this was one job I didn't have to worry about any more. Grateful for James, Justin and the crew of Mayfield Environmental Engineering.
Posted on Google Google
Herman Cheung profile picture
Herman Cheung
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
We hired Mayfield to do testing on our house because we suspected it was previously used as a meth lab. James was extremely knowledgeable and helpful throughout the whole process. He helped to educate us about the realistic dangers and was very practical with his advice and recommendations. We appreciated that he gave reasonable advice and didn't try to "upsell" us on services. He was great with follow-up and service as well. Highly recommend!
Posted on Google Google
Chloe Chipman profile picture
Chloe Chipman
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Mayfield Environmental was great to work with from start to finish. The entire team was super kind, responsive, and easy to communicate with every step of the way. They did an amazing job on the remediation and made a tough process so much smoother than we expected. We couldn't have asked for a better company to work with and would recommend them to anyone!
Posted on Google Google
Florence Kerns profile picture
Florence Kerns
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
James and his team were so helpful to work with when we needed to to additional debris removal from our burned down property after ACE was finished. He is communicative, prompt, and very thorough. We have some oak trees on our property that we really wanted to care for, and his team was very careful not to disturb their roots while still getting the job done. I'd recommend them.
Posted on Google Google
Judith H profile picture
Judith H
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
This is the most honest environmental consultant I encountered, and I talked to many. He explained the issue at hand in detail and with great patience. I highly recommend James Mayfield , especially if you are in Pacific Palisades. He is highly knowledgeable, a true expert in his field and not out there to rip you off!
Posted on Google Google
Sean Li profile picture
Sean Li
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
James would answer questions and provide invaluable advice even after midnight and with no delay. We followed his advice and it truly helped! It’s rare finding someone like Mayfield who is compassionate and sensitive to our needs during this traumatic and complex situation.
Posted on Google Google
Larry Clark profile picture
Larry Clark
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I order to use this company after each fire make the earth plantable again they work anythings their with the military MBE/DBE/Federal/Tribal/Military/Public Works/GSA contractors.
Posted on Google Google
Aly Holub profile picture
Aly Holub
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
We had the pleasure of speaking with James Mayfield of Mayfield Environmental Engineering, and the experience was excellent from start to finish. James was professional, polite, and very straightforward. He took the time to explain proper protocols in great detail, ensuring everything was clearly understood and compliant. His knowledge and expertise were evident, and he was more than willing to answer all of our questions thoroughly. We truly feel confident and comfortable trusting James and his company, and we highly recommend Mayfield Environmental Engineering.
Posted on Google Google
Loraine Labet profile picture
Loraine Labet
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
James and his team were great to work with post ACE removal of our burned down home. They were really great to work with, excellent communicators and very thorough with their work. They are also very knowledgeable and trustworthy. Highly recommend Mayfield.
Posted on Google Google
Cole Gross profile picture
Cole Gross
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Great Job!

h