We are an A, C-10, and Hazardous Substances Removal Certified - General Engineering Contractor. We specialize in tank monitoring system installations, repairs, start ups and certifications. Complete fuel supply system electrical installations, service, calibration and contract maintenance. As well as construction, tank remodels and tank removals. We also provide secondary containment testing per SB989, EVR upgrades and California Designated Operator services are also available.

    We are the Northern California and Bay Area authorized Simplex service center. Simplex start-up, repairs and troubleshooting for fueling systems and load banks.

We are a 24hr emergency alarm response service contractor.   

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Thornton Environmental Construction, Inc.

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Contractors License # 724513 A C-10 HAZ