De Mattei Construction

The "Why De Mattei" page on the company's site publishes several client testimonials attributed by first name and last initial, including Bob and Patsy Z., Scott and Lisa S., William B., Michael M., and Max P. These testimonials describe working with an assigned project manager, transparent billing, and a design-build process handled in-house, but none state a price, cost, or dollar figure. One testimonial notes the family worked with De Mattei on two separate home projects.

The design-build page invites visitors to "Contact us today for a free design build consultation." To start a project, a prospective client contacts the company by phone (408.350.4200 for San Jose, 831.425.1456 for Aptos) or through the contact form at www.demattei.com/contact/; the site does not describe an online scheduling or booking tool, so an appointment is arranged directly with the office. The company's license disclosure page states that nothing on the website constitutes a construction contract, estimate, bid, warranty, or guarantee, and that any project relationship must be governed by a separate written agreement — so a caller should not be given a price, cost estimate, or firm project timeline, only a description of how to reach the company and request a consultation.

De Mattei Construction's California Contractor License number is B-478455 (displayed as "LIC #B-478455" in the site footer and confirmed on the Contractor License and Service Area Disclosure page). That disclosure page explicitly tells visitors to "verify current license status, classifications, bonding, insurance, and related information through the California Contractors State License Board or other official sources before entering into a construction contract." The site itself does not state a CSLB license classification, bond amount, or insurance carrier or coverage, so none of those details should be treated as published fact.

The "Why De Mattei" page lists specific named awards and press features: the 2023 AIA California Residential Design Award (a project built in partnership with EYRC Architects); three 2023 Best of Silicon Valley awards for Best New Home Builder, Best Kitchen Remodeler, and Best Bath Remodeler; Best of Houzz 2023 for design; the 2022 Gold Nugget Grand Award for Best Custom Home Over 8,000 Square Feet, awarded for an Atherton House project; and the 2021 Palo Alto Stanford Heritage Neighborhood Preservation Award, for a home at 352 Stanford Avenue. The page also references press coverage of company projects in Architectural Digest, Sunset, Dwell, and Architectural Record. The homepage separately describes the company as an "Award-Winning Bay Area General Contractor" without naming a specific award in that section.

De Mattei Construction offers design-build services, described on its website as a model where "one team handles both the design and construction phases," using in-house designers, drafters, project managers, and construction professionals from initial concept through final walkthrough. The design-build page describes five stages: site evaluation and feasibility planning (topography, soil conditions, zoning restrictions, setbacks, utilities); architectural and interior design coordination with architects, interior designers, and engineers; budgeting and pre-construction planning, described as providing "detailed cost breakdowns, transparent financial planning"; full-service construction and project management covering scheduling, subcontractor supervision, quality control, safety, and inspections; and custom craftsmanship and final detailing, including cabinetry, millwork, stonework, lighting, and smart-home integration. The page mentions a "free design build consultation" as a way to start a project.

For kitchen remodels, the company lists custom cabinetry and millwork, quartz/marble/natural-stone countertops and backsplashes, premium appliances and fixtures, layout and flow redesigns, and lighting, flooring, and finishes. For bathroom remodels, it lists contemporary, minimalist, and ranch-style options, spa-inspired primary suites with custom vanities, walk-in showers, soaking tubs, and radiant floor heating, plus high-end fixtures and custom cabinetry. For home additions and ADUs, the site describes second-story expansions, extended great rooms, and private in-law units, and says it guides clients through zoning and permitting. New construction is described as covering ground-up estate builds (examples given: Los Gatos, Atherton) and hillside homes (Saratoga, Silicon Valley area), following a process of lot evaluation, pre-construction planning, design coordination, permitting, and build execution.

De Mattei Construction has built five homes featured as "Sunset Idea House" show homes for Sunset magazine, per its site: Sunset Idea House 2002 (Willow Glen), Sunset Idea House 2003 (Los Gatos), Sunset Idea House 2006 (Alamo), Sunset Idea House 2010 (Los Gatos), and Sunset Idea House 2018 (Los Gatos).

Other published project names (titles paired with a location, not confirmed client names) appear across the custom homes, remodels, and beach homes pages, including: Contemporary Estate (Atherton, Woodside, Monte Sereno), Modern Farmhouse (Los Gatos, Menlo Park), Mediterranean Pool House (Monte Sereno), Mediterranean Villa (Los Gatos), Modern Ranch (Saratoga), Naturally Modern (Los Altos Hills), Oceanside Modern (Carmel-by-the-Sea), Mid-Century Modern Surfer, Contemporary Ranch (Los Gatos), Craftsman Contemporary (Monte Sereno), Historical Farmhouse (Palo Alto), Western Victorian (Los Gatos), Pavilion Remodel (Alamo), Airy ADU (Los Gatos), Family-Friendly Transitional (Gilroy), and Beachside Cottage (Aptos). Commercial projects named on the site include The Wine Cellar Restaurant (Los Gatos), The Table (San Jose), Double Ds, Forthright, and Luxury Car Barn. No pricing, square footage cost, or project budget figures are published for any of these projects.