Office Hours
Monday- Thursday 7am-4pm
Friday 7am-3pm
Delivering Excellence in Engineering and Design on NewAWWA, UL, & API Tanks, Maintenance, Inspections,Coatings, and Repairs.
“We pride ourselves on providing quality work, with an extensive list of repeat customers. We also provide the highest level of excellence in workmanship with honesty and integrity as a first step with our valued customers. We are extremely proud of our accomplishments in this industry”.
-Vikki Church, CEO
Our Services
Inspection
STS offers the latest in NDE equipment for Aboveground Storage Tank inspections with fully qualified STI SP001 and API 653 certified inspectors. Engineering services include evaluations per API 653, API 570, and API 510.
Maintenance & Repairs
STS provides tank repair and maintenance services, including bottom replacements, shell repairs, roof repairs and replacements, relocation, fittings and appurtenances, special design and engineering work, as well as specialty fabrications.
New Tank Construction
STS New Tank Construction Services include the construction of field and shop erected storage tanks to various design standards and specifications, such as API, AWWA and specialty designs. In addition to tank constructions, STS provides full design, detailing, engineering, civil and mechanical, painting and all other tank related services.
Safe & Quality Craftsmanship
Safety is very important to us at Southwest Tank. In fact, it is our core value. A successful day for us is not based on production, rather when the men and women of Southwest Tank make it home safely to their families. Our commitment to safety is extraordinary and our goal is complete removal of accidents from our fabrication facility and job sites. It’s with this mind set, that has allowed STS to have an excellent class EMR rating.
About Us
Over 29 Years of Quality
Excelling in AWWA and API 650 Above Ground Storage Tank Installations and Repair. Southwest Tank has been doing business, in and around Arizona, since 1997. Our skilled team has had extensive experience in the tank industry for the past 30 plus years.
Serving You Is Our Expertise
Southwest Tank and Steel provides quality products and services for design, new construction, repair, painting and inspection of aboveground storage tanks (AST’s).
Complete support for
aboveground storage tanks.
Construction, repair, coatings, inspection, modifications, and technical system work built around real
field demands.
field demands.
New Tank Construction
Field-erected and shop-fabricated tank construction for AWWA, API, and specialty projects requiring disciplined field execution and dependable sequencing.
Protective Coatings & Linings
Interior and exterior coating systems, surface prep, lining application, and rehabilitation support for tanks, piping, vessels, and related steel assets.
Inspection & Evaluation
Vacuum testing, weld inspection, condition evaluation, and field verification work tied to practical repair, upgrade, and maintenance decisions.
Repair & Rehabilitation
Bottom repairs, shell repairs, roof work, retrofits, structural modifications, and life-extension work for tanks already in service.
Specialty Interior Work
Stilling wells, appurtenances, interior modifications, specialty upgrades, and technical retrofit scope that goes beyond basic shell work.
Technical Piping & Systems
Alarm piping, appurtenance piping, technical support systems, and related tank components installed as part of complete facility scope.
Municipal Water Tank Construction
New AWWA water storage tank work including structural erection, aluminum roof placement, and finished delivery support.
Fuel Storage Facility
Completed fuel storage installation showing multiple tanks, piping coordination, access systems, and final operational presentation.
Inspection, Testing, and Technical Modifications
Interior weld inspection, vacuum testing, stilling wells, alarm piping, and technical scope supporting tank quality and system performance.
Multi-Tank Construction in Progress
Roof Placement During Construction
Interior Stilling Wells Installed
Alarm & Appurtenance Piping
