San Leandro Construction Company & General Contractor

Highly experienced in jobs of all types and sizes

Airtight Construction, Inc. is a premier construction company and general contractor in the San Leandro area with extensive experience in a wide range of services. We’ve become the company of choice for:

We have worked for decades with owners and managers of occupied commercial buildings, industrial manufacturing plants, and residential dwellings throughout the San Leandro area and beyond. Headquartered in Concord, California, our fully equipped and professionally staffed organization can meet any construction, renovation, or retrofit need. We can serve as a single point of contact for the most complex and time-constrained projects.

We are committed to the responsive delivery of flawless craftsmanship and the industry’s best customer service for our many San Leandro area, SF Bay Area and Northern California clients. We bring proven expertise and time-tested techniques to every job. While most companies rely on subcontractors for major parts of their work, we do everything in house. This allows us to maintain tight control over quality and scheduling of the work performed. Our cleanup crews work daily to keep the job-site clean, safe, and usable at all times.


Here are just a few of the construction partners and projects whose vision we have brought to life:


Committed to the Satisfaction of Our San Leandro Customers

Airtight Construction, Inc. provides unmatched expertise in a full range of construction services for San Leandro companies and homeowners. We stand behind our work and offer one of the best guarantees in the business. Our promise is to provide professional construction, retrofit, and repair services quickly, efficiently, and with the least amount of disruption.

By contracting maintenance, renovations, construction services or repair through ATC you will get construction experience, unmatched expertise, a reputation for quality and a single source for a full-range of services. Our promise is to provide professional construction, retrofit and repair services quickly and with the least amount of disruption.


I want to express my greatest thanks for the excellent roofing, siding replacement, ADA hand rail, and concrete work you performed. Kaiser Permanente and PG&E were very pleased with your work. The planning and execution of the job was very evident and the workmanship cannot be matched. I have and will continue to recommend Airtight Construction.

Vern Cummings, Park Shadelands Business Park


San Leandro, CA is typical of the earliest settlements in the state famous for the fertile soil and mild Mediterranean climate. First visited by the Europeans in 1772, initial development was in the form of several rancheros with livestock followed by agriculture.

The earliest settlers included a large Portuguese population as well as laborers from Hawaii. Forming nearly 2/3rds of the population, they established farms and businesses reflecting their diversity.

One of the darker aspects of life in San Leandro was the practice of having restrictive covenants that barred African Americans and other minorities from owning property. Luckily those covenants wer later found to be unlawful and the truly diverse city of San Leandro followed.

Currently home to many food processing companies, it is also home to clothing manufacturers JanSport, The North Face, chocolatier Ghiardelli, and OSIsoft tech company.

The city has 5 major shopping centers, including Bayfair Mall and Westgate Center. Since these shopping centers have adequate parking and fine shops and restaurants, tourists from far and near come to visit.

In the year 2012, the mayor of the city set a goal for San Leandro to become the center of innovation for the San Francisco Bay area. It is a lofty goal, one which the city and its’ residents are determined to reach.