CA CONT LICENSE # 977589

925.891.4220

​General Engineering Class-A Contractor Services

 

Jim Slevin (CEO & President) of Trinity Devco Inc has maintained our General B -Contractors License since 1999, along with our General A-Engineering Contractors License.  Jim has literally acquired 40 years’ experience in Project Development, with an extensive performance based back ground in Project Land Development.  Ground Up / Dust to Delivery operations.

Trinity Devco Inc QUALITY - Whether performing as Project General Contractor, and or Site-Improvement General Engineering Contractor or even Project Consultant our team works hard from early on for our customers to insure the Projects Design, the Projects Build to be Top Shelf performed.

While Self Performing Turn-Key Site-Work Improvements or when utilizing one of our Trade Partners for Full Service Engineering Contractor Services, we strive to be the best with Site Grading – Site Utilities – Site Concrete – Site Paving.  We perform for our Owners and the construction industry Contracts we not only execute on schedule,  but at a unprecedented below cost minus to our clients. 

Commercial – Residential or Industrial Projects, we pride ourselves on being the top-quality general engineering contractor in our region – we work out in front of issues and strive to perform with integrity to solve any – all on-site design or construction problems efficiently.  From our management team to our workers, the needs of our customers are our top priority. With 40 years of experience in the Construction Industry, our reputation is built on the quality of our work - a quality you can depend on!


Summary of Services as an industry leader, Trinity Devco Inc has a broad spectrum of Highly Skilled / Management & management team to our workers, the needs of our customers are our top priority. With 40 years of experience in the Construction Industry, our reputation is built on the quality of our work - a quality you can depend on!


Summary of Services

As an industry leader, Trinity Devco Inc has a broad spectrum of Highly Skilled / Management & Tradesman that extends to both the public and private sectors.  Trinity Devco Inc has developed a depth of expertise in performing various private and commercial works – from commercial sites and subdivisions to wineries.

 

Trinity Devco Inc General Engineering Contractor Services always provide:

(Itemized Detailed Bid Proposals)

(Accurate Quantity and Unit Pricing Engineers Estimate, then Contract)

Forward Planning Design Concepts to save money, and virtually eliminate Change Orders, or Extra Work.
Total Site Preparation
Grading and Excavating

​Finish Rock & Paving
Complete Site Improvement management
Underground Wet & Dry Utilities
Soil Stabilization
Site-Concrete & Structural Concrete

 






















 



















Commercial Projects

Trinity Devco Inc performs quality site work for commercial projects throughout the greater Bay Area.  Commercial Businesses require services unique to each site-specific activity and we know what it takes to get the job done. We excel at managing the site-work schedules, taking advantage of the long-established working relationships with local agencies / municipalities and when necessary keeping businesses open and in service while under construction. Our past clients will agree that we deliver a quality product in a timely and cost-effective manner.

We have the unparalleled ability to perform many of the tasks required unique to Commercial work including:

Soil Stabilization (lime treat, cement treat)
Dry Utilities - Joint Trench
Wet Utilities - Underground (storm, sewer and water)
Curb, Gutter and Sidewalk
Retaining Walls
Structures
Paving
Grading
Demolition
Remedial Slide Repair


Residential Projects

Trinity Devco Inc has extensive experience and expertise in performing quality site work for either Custom Home Estate Development / Spec Development and many residential projects throughout Northern California. From single-family home sites to apartment complexes to single family & multi family unit subdivisions, we are able work through the unique issues that arise on each site to get the job done. We excel at managing the site-work schedule and delivering a quality product to our clients in a timely and cost-effective manner.

We have the unparalleled ability to perform all the tasks required in residential work, and or managing those activities that may not be in our contractual scope of work including: (Design Civil – Geotechnical – SWPPP – Site related improvements in addition to our typical scope below:

Forward Due Diligence / Conditions of Approval Management
Work with Civil & Geo-Technical Engineers on a project by project (Site Specific) value engineered approach to Design Build.
Clear & Grub / Mass Grading
Underground (storm, sewer and water)
Dry Utilities (Joint Trench)
Curb, Gutter and Sidewalk
Retaining Walls
Slide Repair
Structures
Paving & Grading
Soil Stabilization
Landscaping / Decorative Hard Scaping



Mission Statement & Safety Policy Statement

 

“The Trinity Team owns Offsite “Horizontal Construction Management”, and we are the Best at a Clean Safe project development.

 

It is the policy of Trinity Devco Inc Construction Company…

…that the safety of our employees, and the public, is of the highest priority. Accident prevention is yet one of our high priorities in all phases of operations and administration. It is Trinity Devco Inc management to maintain effective standards that will guard against injuries and illnesses occurring on the job.

…We strive to maintain open communication between management and staff on matters pertaining to safety. All employees are encouraged to express their concerns or suggestions to help promote safe work practices and conditions.

…We always provide current safety news, safety activities and reading materials, signs, and posters, which will be easily accessible to all employees.

 

 

To meet our commitment to safety, management we continually:Provide all employee’s, and our customers with a current copy of the Trinity Safety Manuel, while daily check list and monitoring insure excellence We Promote a positive attitude towards accident prevention.



We Establish and insist upon safe work practices and conditions.
Always Provide appropriate supervision, training, and monitor conformance to quality standards.
Continually Ensure employees and other persons understand and accept their responsibility to promote a safe and healthy work place.
Always Ensure that contractors working on our premises have, and follow, appropriate safety procedures.