Our annual ranking of top construction firms highlights the top companies in Windsor on their project volume over the past year, with a focus on relevance. This compilation is derived from permit and contractor information sourced from city, county, and state building departments through our partners at BuildZoom. For further information regarding data accuracy, please consult the note at the end of this article.
Construction data is useful for many people involved in the building industry. Companies that supply materials and services to general contractors can use construction market data to reach the right customers at the right time. By keeping track of important events, like the start of big construction projects and related permits, they can offer their products and services when contractors are most likely to need them. They can also study how contractors grow their businesses and focus on those who are expanding. Subcontractors can use construction data to find and connect with general contractors for new jobs. At the same time, real estate developers, property owners, and others looking to hire contractors can use detailed information to check the skills and reliability of contractors and subcontractors before starting a project.
| Business | # Projects (’23) | Average Contract Value |
|---|---|---|
| Bartkus Remodel | 10 | $19K |
| Green Bay Remodeling | 6 | $81K |
| Sightline Builders, Inc. | 5 | $69K |
| Earthtone Construction | 5 | $64K |
| K-Designers | 4 | $14K |
Bartkus Remodel
Address:
843 Garden Ct, Petaluma, CA 94954
Bartkus Remodel is a premier home renovation company based in Petaluma, California, with over two decades of experience transforming spaces throughout San Francisco, Marin, Sonoma, and beyond. Since its founding in 2004, Bartkus Remodel has earned a reputation for delivering high-quality custom renovations that reflect both client vision and architectural harmony. With a keen eye for design and a commitment to craftsmanship, the company has completed a wide range of projects—from full kitchen and bathroom remodels to outdoor kitchens, patios, and hillside farmhouse upgrades. Bartkus Remodel collaborates closely with homeowners, architects, and engineers, ensuring that each renovation is not only structurally sound but aesthetically refined. Founder Steve Bartkus brings a personal passion shaped by the natural beauty and creative spirit of the Bay Area, inspiring a design approach that emphasizes balance, flow, and livability. Notable projects include full interior renovations in Pacific Heights and tranquil bath retreats in Petaluma, all marked by meticulous planning and a results-driven process. The company’s team of seasoned craftspeople and trade professionals ensures that every phase—from consultation to execution—is handled with transparency, care, and technical precision. Whether in city apartments or rural retreats, Bartkus Remodel consistently delivers work that fits seamlessly into the client’s lifestyle and environment.
The General Contractors Magazine team also looked at data from the Town of Windsor Building Division to find past projects from Bartkus Remodel. In 2019, Bartkus Remodel worked on a master bathroom remodel. This was a $150,000 project. Furthermore, in 2021, Bartkus Remodel worked on a $450,000 project. This was a renovation of two bathrooms.
Green Bay Remodeling
Address:
1170 Burnett Ave, Concord, CA 94520
Green Bay Remodeling is an award-winning design-to-build firm with over a decade of experience transforming homes across the San Francisco Bay Area, Southern California, Austin, Texas, and Waltham, Massachusetts. Headquartered in Walnut Creek, the company is recognized for its full-service approach, offering kitchen and bathroom remodeling, ADU development, and custom home construction all under one roof. Known for its innovative project management model, Green Bay Remodeling assigns a dedicated project manager to each client, ensuring personalized service and streamlined communication. The company has earned national recognition, including rankings on the Inc. 5000 list and San Francisco Times’ Fastest Growing Companies, and has been honored as one of the Best and Brightest Companies to Work For. Green Bay Remodeling has distinguished itself by delivering high-end results with transparent pricing, free 3D design services, and a one-year workmanship guarantee. Its projects range from modern minimalist bathrooms to luxury kitchen transformations, blending form and function with exceptional craftsmanship. Clients consistently praise the team’s responsiveness, attention to detail, and commitment to timelines—often completing projects ahead of schedule. With multiple offices in major metropolitan areas, Green Bay Remodeling continues to raise the standard for home renovation, helping homeowners turn their visions into everyday reality.
The General Contractors Magazine team examined records from the City of Santa Rosa Planning and Economic Development Department to identify previous projects by Green Bay Remodeling. In 2025, Green Bay Remodeling completed a bathroom remodel valued at $707,173. Additionally, in the same year, they worked on a second-floor bathroom remodel, which was a $476,149 project.
Sightline Builders, Inc.
Address:
4676 Hessel Rd, Sebastopol, CA 95472
Sightline Builders, Inc. is a trusted name in Sonoma County construction, offering over a decade of expertise in residential and commercial renovations, rebuilds, and new construction. Known for transforming everything from modern homes to historic landmarks, Sightline Builders delivers tailored results with an emphasis on quality craftsmanship, sustainable practices, and clear communication. The company excels in a wide array of services including kitchen and bathroom remodels, ADU construction, commercial tenant improvements, and historical restorations. Their projects range from exterior enhancements like siding and decks to complex interior upgrades designed to elevate both functionality and aesthetic appeal. Sightline Builders takes pride in guiding clients from design concept to final creation, providing cost estimates, permitting assistance, and full construction management. Their work reflects a commitment to integrity, consistently balancing vision with budget and schedule considerations. With a deep understanding of local building codes and design trends, they’ve helped countless homeowners and businesses reimagine their spaces. Whether creating a serene backyard oasis or optimizing a commercial environment, Sightline Builders ensures each project is both beautiful and built to last.
Sightline Builders, Inc.’s past projects, as reviewed by The General Contractors Magazine team using records from the Town of Windsor Building Division, reveal that in 2025, the company completed a remodel of a master bedroom and bathroom along with the kitchen and dining room, valued at $179,000. Additionally, in 2018, Sightline Builders, Inc. worked on a bathroom remodel project worth $35,000.
Earthtone Construction
Address:
7775 Healdsburg Ave, Sebastopol, CA 95472
Earthtone Construction is a well-established contractor with over 25 years of experience delivering high-quality construction services across residential and commercial sectors. Founded in 1997 and based in Sebastopol, California, Earthtone Construction has built a strong reputation for excellence in site development, pre-construction planning, new builds, renovations, and sustainable building practices. The company prides itself on fostering a collaborative culture centered on respect, teamwork, and genuine care for both clients and employees, which has been key to its long-term success. Their comprehensive approach includes feasibility studies, architectural and civil design, value engineering, and meticulous project management to ensure budgets and schedules are met without compromising quality. Known for tackling complex infrastructure projects, such as bridge construction, Earthtone consistently demonstrates versatility and technical expertise. Employees frequently highlight the supportive environment and leadership’s commitment to personal and professional growth. With a focus on sustainability and client satisfaction, Earthtone Construction continues to set industry standards by blending innovative building techniques with a people-first philosophy, helping clients build a better future.
The General Contractors Magazine team reviewed information from the Town of Windsor Building Division to uncover past projects by Earthtone Construction. In 2024, Earthtone Construction completed a kitchen-bath remodel valued at $2,500. Additionally, in 2023, the company worked on a bathroom alteration project worth $30,000.
K-Designers
Address:
2440 Gold River Rd, Suite #101, Rancho Cordova, CA 95670
K-Designers has been a prominent name in the home remodeling industry since its founding in 1978, boasting over 45 years of experience and a steadfast commitment to quality and customer satisfaction. Under the leadership of CEO Larry Judson, the company has grown from a small startup into one of the largest remodeling firms in the Western United States, with more than 260 employees. Known for their innovative designs and use of premium materials, K-Designers specializes in exterior restoration, siding, windows, and bathroom remodeling. The company has earned over 15 national awards recognizing excellence in craftsmanship, service, and business ethics, including multiple consecutive wins of the Gentek Outstanding Dealer of the Year Award and the Revere Eagle Award. K-Designers emphasizes a family-first company culture, ensuring employees are valued and motivated to deliver their best work. The business weathered significant industry challenges, including the 2008 financial crisis, emerging stronger and maintaining a steady growth philosophy. Their dedication to customer service is evident through flexible in-house financing options and lifetime warranties on installed products. K-Designers prides itself on transforming homes into dream living spaces, guided by Larry Judson’s vision of “A new home at your old address.” Today, the company continues to innovate while maintaining a reputation for reliability and excellence in remodeling. K-Designers’ past projects, as reviewed by
The General Contractors Magazine team using records from the Town of Windsor Building Division, reveal that in 2025, the company completed a bathroom remodel valued at $26,638. Furthermore, in 2024, K-Designers worked on a second-floor master bathroom remodel, which was a $18,233 project.
Note: The data used to compile this list may not be complete based on the availability of permit data – collecting and consolidating this data is a time-intensive and difficult task. It may not be complete in all areas due to jurisdictional reporting requirements and the availability of data. Job values and permit fees should be taken as estimates rather than exact values, based on the most complete permit and contractor data available. Additionally, number of projects and typical job size may be updated per contractor request.
The time period for the data used for this ranking was the past 365 days, plus an additional 45 days to account for the average timeline of a building permit. If you have any suggestions on the data or see any corrections that you’d like to give feedback on, please fill out this form. For more insights on construction data outside that are not directly related to contractors, there are other resources available as well.
