MSI Construction



Quality built right in

MSI Construction is one of the premier builder of custom homes in Ventura, CA. For more than 20 years, owner Mark Smith has built more than 70 homes around Ventura and Santa Barbara counties. The company’s reputation for excellence is attributed to its innovative building methods, quality construction, on-time delivery, and outstanding customer service .

As the leading design-build firm in the area, Mark and his team are committed to listening to the wants and needs of each client and then delivering a finished product that exceeds all expectations.  The long-term relationships built with its clients is the backbone of the business.

MSI Construction has a standing reputation in the community for using materials and building techniques that are of the highest possible standard. The company’s commitment to quality in every aspect of production is evident in the finished product built to outlast generations.



Schedule Appointment

To start building your new custom home.

Contractor License # 938830


Peter has done several small and large projects for my old Victorian home on Grove Street. He’s always incredibly professional and accommodating. I know I can trust him to work diligently even when I’m away on vacation.
People have been complimenting my bathroom nonstop since Peter remodeled it three years ago. Everything’s still got that new sheen and the tilework is just awesome.
I’ve been hiring the Sweeneys since I first moved into my house over 70 years ago. They did my kitchen cabinets, fixed my drains, and even rewired the lights in my bedroom into a single switch! There’s nothing the Sweeney’s can’t do.
I had this toilet that always had a problem. Either it was a leak or a plug. It was always giving me a headache. I’d hired other plumbers in the neighborhood, but problems would always come back. Since Peter worked on it last year, it’s been working perfectly. I’m so grateful!



I’ll only work with the best materials available and provide a 1 year guarantee on all labor. I never compromise quality for time and give my clients realistic schedules that accommodate their lives. I strive for honest customer service, so contracts are only paid in full when the finished work is to your complete satisfaction.



About Me


I started apprenticing for my dad, Peter Sweeney, Jr. when I was twelve, but even before that I was watching him work all the time. My grandpa established our company in 1918, back when we specialized in carpentry and woodwork. Dad picked up new trades and expanded our business. I’ve been servicing the greater Wichita area for over 15 years and am about to bring my oldest son in as an assistant.