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Addition and remodeling pros in Castro Valley
Alrob Building Services, is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade, combined with ability, is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.
"Absolutely phenomenal service. My first Angie’s Handyman and Danny set the bar very high. Ran into some hiccups due to weird nonstandard preexisting setups and he took everything he encountered on the chin. Danny explained everything he did at every step and proposed creative solutions."
Yanick M on January 2023
Alrob Building Services, is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade, combined with ability, is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.
"Absolutely phenomenal service. My first Angie’s Handyman and Danny set the bar very high. Ran into some hiccups due to weird nonstandard preexisting setups and he took everything he encountered on the chin. Danny explained everything he did at every step and proposed creative solutions."
Yanick M on January 2023
BCS has over 25 years' experience in the construction industry. The sophistication and attention to detail that was born from our experience with high level custom homes has been foundational to our success with multi-family, commercial and post-litigation repair work. We bring cost effective, creative and knowledgeable solutions to our role as a member of your project team. We would love to talk with your about your project and how we can be a solution for you.
"Thomas is very forthright and honest."
Bill A on December 2020
BCS has over 25 years' experience in the construction industry. The sophistication and attention to detail that was born from our experience with high level custom homes has been foundational to our success with multi-family, commercial and post-litigation repair work. We bring cost effective, creative and knowledgeable solutions to our role as a member of your project team. We would love to talk with your about your project and how we can be a solution for you.
"Thomas is very forthright and honest."
Bill A on December 2020
We take great pride in our experience, expertise, quality and customer service that we provide to meet every consumer's needs. It is our mission to provide excellent customer service from start to completion of a project. To understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a personal and professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.
"What ever he plans for the project,He compleat that.He is honest and fair.I will refer him to my friends and family."
Mina R on November 2020
We take great pride in our experience, expertise, quality and customer service that we provide to meet every consumer's needs. It is our mission to provide excellent customer service from start to completion of a project. To understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a personal and professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.
"What ever he plans for the project,He compleat that.He is honest and fair.I will refer him to my friends and family."
Mina R on November 2020
Since 1959, Springs Construction has built its reputation on fine craftsmanship, technical expertise and solid project management.We take a proactive, client driven approach to every one of our projects, exceeding our customers vision for their homes. We want you to feel comfortable and safe during the disruption and enjoy your home for years to come.
Since 1959, Springs Construction has built its reputation on fine craftsmanship, technical expertise and solid project management.We take a proactive, client driven approach to every one of our projects, exceeding our customers vision for their homes. We want you to feel comfortable and safe during the disruption and enjoy your home for years to come.
Welcome to Bro Builders Renovations! We take pride in the quality of work and customer satisfaction that we give each and every customer! We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Call us today to learn more about how we can help you!
Welcome to Bro Builders Renovations! We take pride in the quality of work and customer satisfaction that we give each and every customer! We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Call us today to learn more about how we can help you!
SPECIALIZING IN HAPPY CUSTOMERS! Cerletti & Kennedy Design-Build is a full service contractor, family owned and operated for three generations. We specialize in room additions, kitchens and all your remodeling needs. We offer comprehensive design services utilizing the latest 3D CAD technology so you can see your design choices before you build. We're prompt and cost effective, our workers are clean and courteous and our customers are satisfied and happy.
"The job got finished overall I was happy with the finish project. The job was not as smooth I had hoped for. I believe my experience on construction and expectation's might have been out of touch. I would for sure let them bid on more work for me if I ever planned to do any more construction."
Larry P on April 2025
SPECIALIZING IN HAPPY CUSTOMERS! Cerletti & Kennedy Design-Build is a full service contractor, family owned and operated for three generations. We specialize in room additions, kitchens and all your remodeling needs. We offer comprehensive design services utilizing the latest 3D CAD technology so you can see your design choices before you build. We're prompt and cost effective, our workers are clean and courteous and our customers are satisfied and happy.
"The job got finished overall I was happy with the finish project. The job was not as smooth I had hoped for. I believe my experience on construction and expectation's might have been out of touch. I would for sure let them bid on more work for me if I ever planned to do any more construction."
Larry P on April 2025
Top quality work and your satisfaction are our priorities. We understand that your home is your castle, and pride ourselves in delivering the results you want reliably and with integrity. As experts in our trade, we know the importance of keeping you informed at every stage of your project, in a timely and always honest manner. Give us a call today and let’s talk about how we can make your dreams a reality! We look forward to earning your business!
"Good, but may be slow to respond on followup projects"
Jan K on June 2021
Top quality work and your satisfaction are our priorities. We understand that your home is your castle, and pride ourselves in delivering the results you want reliably and with integrity. As experts in our trade, we know the importance of keeping you informed at every stage of your project, in a timely and always honest manner. Give us a call today and let’s talk about how we can make your dreams a reality! We look forward to earning your business!
"Good, but may be slow to respond on followup projects"
Jan K on June 2021
Home Remodeling and Commercial Renovation. From custom kitchens to concrete floors we do it all and our experienced professionals can help you figure out what products are right for you. We offer industrial grade finishes that can handle excessive traffic, as well as fine finishes for your home.
"After months of planning, we chose Aly to remodel our kitchen and living room and we're so glad we did. From the initial consultation to the final walk-through, the process was seamless. The team was respectful of our home and incredibly friendly. We absolutely love our new space and highly recommend Aly and his team at Cal Green Remodeling."
Albert A on June 2025
Home Remodeling and Commercial Renovation. From custom kitchens to concrete floors we do it all and our experienced professionals can help you figure out what products are right for you. We offer industrial grade finishes that can handle excessive traffic, as well as fine finishes for your home.
"After months of planning, we chose Aly to remodel our kitchen and living room and we're so glad we did. From the initial consultation to the final walk-through, the process was seamless. The team was respectful of our home and incredibly friendly. We absolutely love our new space and highly recommend Aly and his team at Cal Green Remodeling."
Albert A on June 2025
We have a single mission: complete customer satisfaction! With over 40 years of experience, serving the Bay Area, we strongly believe in giving our customers the most for their money. We work with only the highest quality materials and we are professional craftsmen. We have consistently focused on the needs of our customers, providing personalized attention and a stress-free experience. Please give us a call today for a free estimate.
"I was exceptionally happy with work that was done and his professionalism. I highly recommend !"
Glen A on April 2021
We have a single mission: complete customer satisfaction! With over 40 years of experience, serving the Bay Area, we strongly believe in giving our customers the most for their money. We work with only the highest quality materials and we are professional craftsmen. We have consistently focused on the needs of our customers, providing personalized attention and a stress-free experience. Please give us a call today for a free estimate.
"I was exceptionally happy with work that was done and his professionalism. I highly recommend !"
Glen A on April 2021
**Due to our current installation schedule we have a project minimum* depending on the job size- ask for details as it varies depending on project size- starting at 5K*- 10k depending on job size* * Unfortunately, at this time we do not have a bilingual representative. (no spanish speaker) BEAR Remodeling, Inc. is a family-owned business and a full-service General Contractor that specializes in residential home remodeling projects. Our services include bathroom remodeling, kitchen remodeling, room additions, garage conversions, and (non prefab) ADU'S. With full licensing, bonding, and insurance, it ensures a reliable and trustworthy experience for its clients. Our team of experienced professionals, which includes both engineers and designers, collaborate in order to deliver exceptional results, consistently exceeding client expectations and transforming homes into stunning spaces. (we do not work with modular/mobile homes or offer handyman services, Small jobs)
"Working with BEAR Remodeling on our ADU garage conversion has been a great experience! The 3D design has really helped us see the project before work began. The team has stayed organized, finished on time, and delivered exactly what we had imagined. Everything has turned out clean, modern, and built to last. We have happily recommended BEAR Remodeling to anyone looking for reliable remodeling services!"
Ryker H on May 2025
**Due to our current installation schedule we have a project minimum* depending on the job size- ask for details as it varies depending on project size- starting at 5K*- 10k depending on job size* * Unfortunately, at this time we do not have a bilingual representative. (no spanish speaker) BEAR Remodeling, Inc. is a family-owned business and a full-service General Contractor that specializes in residential home remodeling projects. Our services include bathroom remodeling, kitchen remodeling, room additions, garage conversions, and (non prefab) ADU'S. With full licensing, bonding, and insurance, it ensures a reliable and trustworthy experience for its clients. Our team of experienced professionals, which includes both engineers and designers, collaborate in order to deliver exceptional results, consistently exceeding client expectations and transforming homes into stunning spaces. (we do not work with modular/mobile homes or offer handyman services, Small jobs)
"Working with BEAR Remodeling on our ADU garage conversion has been a great experience! The 3D design has really helped us see the project before work began. The team has stayed organized, finished on time, and delivered exactly what we had imagined. Everything has turned out clean, modern, and built to last. We have happily recommended BEAR Remodeling to anyone looking for reliable remodeling services!"
Ryker H on May 2025
FAQs for addition and remodeling projects in Castro Valley, CA
The typical timeline for completing a garage-to-ADU conversion spans approximately three to six months, encompassing planning, permitting, construction, and final inspections. Projects requiring substantial structural modifications or encountering material delivery delays may extend beyond this timeframe. Working with an experienced general contractor who efficiently coordinates various trades and maintains consistent progress can significantly improve project efficiency and reduce unnecessary delays.
Converting a garage into an ADU typically requires obtaining building permits and potentially specialized electrical, plumbing, and mechanical approvals. Requirements vary significantly between jurisdictions, making consultation with local planning departments essential. Most municipalities mandate specific features, including dedicated entrances, proper emergency egress windows, and verification that the structure meets current residential safety standards. Proceeding without proper authorization risks potential penalties and complications during future property transactions.
California has implemented some of the nation's most supportive ADU regulations to address housing availability challenges. Recent legislation has streamlined approval processes, and local jurisdictions generally must approve projects meeting state guidelines. Nevertheless, individual municipalities may impose additional specific requirements regarding design, parking, or utility connections. Consulting with your local planning department remains essential for understanding the particular regulations applicable to your property.
Converting a garage to an ADU typically increases your property's assessed value, resulting in higher property tax obligations. The specific tax implications depend on your local assessment methods and how substantially the improvements enhance your property's value. While this represents an additional ongoing expense, many property owners find that potential rental income or increased property marketability offsets these higher tax obligations over time.
To qualify as a legal ADU, your converted garage must typically include a separate entrance, functional kitchen facilities, a complete bathroom, adequate natural light, proper ventilation systems, and full compliance with local building codes. Emergency egress provisions and appropriate climate control systems are also generally required. Many jurisdictions establish minimum and maximum size parameters, making consultation with your local building department essential for ensuring your conversion meets all legal requirements.
For many property owners, the potential rental income from a converted garage ADU makes the investment financially worthwhile. Monthly rental payments can help offset mortgage obligations or fund additional property improvements. The actual profitability depends on various factors, including local rental demand, the quality and size of your converted space, and your ability to maintain consistent occupancy. With careful planning and quality execution, many homeowners recover a substantial portion of their investment through ongoing rental revenue.
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