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Find Second story addition builders in Union City

Avatar for Sentri Homes

Sentri Homes

New on HomeAdvisorNew on HomeAdvisor
•Approved Pro

Sentri Homes

New on HomeAdvisorNew on HomeAdvisor
•Approved Pro
88 local quotes requested
2 years of experience

Sentri Homes is a full-service contractor delivering high-end home additions, whole-home remodels, new custom builds, luxury kitchens, structural framing, roof replacements, and every major renovation. We assign a dedicated project manager to every job, deliver meticulous craftsmanship with clear communication, and back our work with an industry-leading warranty to ensure complete peace of mind on your largest investments. Our in-house team of licensed builders and master craftsmen consistently earns 5-star reviews by turning big visions into stunning, high-value homes—when you need one trusted partner who truly does it all, we’re the proven choice.

Sentri Homes is a full-service contractor delivering high-end home additions, whole-home remodels, new custom builds, luxury kitchens, structural framing, roof replacements, and every major renovation. We assign a dedicated project manager to every job, deliver meticulous craftsmanship with clear communication, and back our work with an industry-leading warranty to ensure complete peace of mind on your largest investments. Our in-house team of licensed builders and master craftsmen consistently earns 5-star reviews by turning big visions into stunning, high-value homes—when you need one trusted partner who truly does it all, we’re the proven choice.

Avatar for Auto Transport - United Freight Of America

Auto Transport - United Freight Of America

4.84(
920
)

Auto Transport - United Freight Of America

4.84(
920
)
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers

United Freight of America is your all inclusive transport solution. CONTACT US FOR A QUOTE. please include pick up and Drop off locations and vehicle information

"Excellent, no problems. My car was new the first year I used the service and there has never been any damage during the transports. The men picking up and delivering the car have always been pleasant and cooperative. Both Ely and Guy at United Transport has been highly responsive to my needs. I would highly recommend this company."

CLAUDIA H on October 2021

United Freight of America is your all inclusive transport solution. CONTACT US FOR A QUOTE. please include pick up and Drop off locations and vehicle information

"Excellent, no problems. My car was new the first year I used the service and there has never been any damage during the transports. The men picking up and delivering the car have always been pleasant and cooperative. Both Ely and Guy at United Transport has been highly responsive to my needs. I would highly recommend this company."

CLAUDIA H on October 2021

California Fine Stair Building

5.00(
2
)

California Fine Stair Building

5.00(
2
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Over 20 years in the business I install nearly all staircases. Curved stairs and spirals, iron and wood railings, deck railings and exterior stairs. As the owner operator I install all the work myself, except the painting and finishing for which I have someone I can recommend. Customer satisfaction is number one and I go out of my way to achieve this. Free initial consultation at your home or if you prefer at my shop in Mountain View. Very high quality work a affordable prices

Over 20 years in the business I install nearly all staircases. Curved stairs and spirals, iron and wood railings, deck railings and exterior stairs. As the owner operator I install all the work myself, except the painting and finishing for which I have someone I can recommend. Customer satisfaction is number one and I go out of my way to achieve this. Free initial consultation at your home or if you prefer at my shop in Mountain View. Very high quality work a affordable prices

Avatar for MTZ Modern Carpentry Inc.

MTZ Modern Carpentry Inc.

5.00(
7
)

MTZ Modern Carpentry Inc.

5.00(
7
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We specialize in crafting custom decks that not only enhance the aesthetics of your home but also provide a versatile outdoor living area for you to enjoy. We provide more than just quality services with over 25 years experience in woodworking, framing, siding, railings, and feeney cable solutions for a contemporary look while ensuring safety and longevity. Specializing in woodworking decks porches fences and much more.

"From start to finish, Enrique was professional, knowledgeable, and easy to work with. I've never felt better about investing in my home. Our front porch steps were severely in need of repair. The flagstone was falling off the frame and became a hazard for our family and others visiting our home. We had struggled to find others who could meet our budget or were comfortable taking the job. However, Enrique assured us this was well within his skill and experience and that we would be happy with the results. He could not have been more right! Enrique removed the old flagstone, added additional support for the existing frame, and installed beautiful new steps using Trex decking material. He even included exterior lighting! We are thrilled with our new stairs, and his work gives us great confidence in working again with MTZ Modern Carpentry. Thanks again, Enrique!"

Jeff C on February 2025

We specialize in crafting custom decks that not only enhance the aesthetics of your home but also provide a versatile outdoor living area for you to enjoy. We provide more than just quality services with over 25 years experience in woodworking, framing, siding, railings, and feeney cable solutions for a contemporary look while ensuring safety and longevity. Specializing in woodworking decks porches fences and much more.

"From start to finish, Enrique was professional, knowledgeable, and easy to work with. I've never felt better about investing in my home. Our front porch steps were severely in need of repair. The flagstone was falling off the frame and became a hazard for our family and others visiting our home. We had struggled to find others who could meet our budget or were comfortable taking the job. However, Enrique assured us this was well within his skill and experience and that we would be happy with the results. He could not have been more right! Enrique removed the old flagstone, added additional support for the existing frame, and installed beautiful new steps using Trex decking material. He even included exterior lighting! We are thrilled with our new stairs, and his work gives us great confidence in working again with MTZ Modern Carpentry. Thanks again, Enrique!"

Jeff C on February 2025

Andre Rothblatt Architecture

5.00(
7
)

Andre Rothblatt Architecture

5.00(
7
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Andre Rothblatt Architecture is an architectural firm located in the San Francisco Design Center. Formerly a licensed building contractor, Rothblatt has been actively involved in professional practice for more than 20 years. In his current residential work, he responds to clients' needs with distinctive designs that are carefully composed and richly detailed. His work has been published in Sunset Magazine, House Beautiful, The San Francisco Chronicle, The Examiner, Fine Homebuilding, and featured on HGTV. Additional address - 2 Henry Adams St Ste 460, San Francisco, CA 94103-5038.

Andre Rothblatt Architecture is an architectural firm located in the San Francisco Design Center. Formerly a licensed building contractor, Rothblatt has been actively involved in professional practice for more than 20 years. In his current residential work, he responds to clients' needs with distinctive designs that are carefully composed and richly detailed. His work has been published in Sunset Magazine, House Beautiful, The San Francisco Chronicle, The Examiner, Fine Homebuilding, and featured on HGTV. Additional address - 2 Henry Adams St Ste 460, San Francisco, CA 94103-5038.

Beyond Construction Builders

4.50(
2
)

Beyond Construction Builders

4.50(
2
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
Avatar for A&O Construction

A&O Construction

5.00(
3
)

A&O Construction

5.00(
3
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Professional construction services at affordable prices! We specialize in all areas of construction and remodeing and pride ourselves on providing superior services. Please reach out to us directly at 408-687-2615.

"They did an outstanding job. The quality was great, the employees were very honest and communicative. Very good service."

Yvonne H on December 2019

Professional construction services at affordable prices! We specialize in all areas of construction and remodeing and pride ourselves on providing superior services. Please reach out to us directly at 408-687-2615.

"They did an outstanding job. The quality was great, the employees were very honest and communicative. Very good service."

Yvonne H on December 2019

Sergent Revital - Construction & Development

No reviews yet

Sergent Revital - Construction & Development

No reviews yet
29 years of experience

Hello, my name is Darin Sergent, owner and operator for Sergent Revital -Construction & Development (Lic. #1117130). We specialize in multiple areas of private, residential remodels from bathrooms to kitchens to room additions. Sergent Revital also does many types of commercial revitalizations and retro-fitting to existing commercial spaces such as restaurants and office spaces, with accompanied design and development as part of our portfolio. I have been building hospitals, home remodels, and most recently, lots of restaurants throughout the Bay Area, CA, over the past 30 years. I grew up in restaurants and construction and decided to start my own business recently and have the knowledge and CA General Contractor's License (bonding and GL insurance) to accompany whatever needs you have. Extensive references, positive reviews and job site photos provided upon request. There is nothing that we cannot do and have the ability and bandwidth to take care of any of your remodel, build and constructions needs, along with the design and development that is part of our brand in making your dream space a reality. We are very proud of what we do at Sergent Revital, and have the team to take care of any needs that you might have in your home or business. Please email me directly or call for free quotes: Darin Sergent Sergent Revital - Construction & Development darinsergent@mac.com 859-333-9549

Hello, my name is Darin Sergent, owner and operator for Sergent Revital -Construction & Development (Lic. #1117130). We specialize in multiple areas of private, residential remodels from bathrooms to kitchens to room additions. Sergent Revital also does many types of commercial revitalizations and retro-fitting to existing commercial spaces such as restaurants and office spaces, with accompanied design and development as part of our portfolio. I have been building hospitals, home remodels, and most recently, lots of restaurants throughout the Bay Area, CA, over the past 30 years. I grew up in restaurants and construction and decided to start my own business recently and have the knowledge and CA General Contractor's License (bonding and GL insurance) to accompany whatever needs you have. Extensive references, positive reviews and job site photos provided upon request. There is nothing that we cannot do and have the ability and bandwidth to take care of any of your remodel, build and constructions needs, along with the design and development that is part of our brand in making your dream space a reality. We are very proud of what we do at Sergent Revital, and have the team to take care of any needs that you might have in your home or business. Please email me directly or call for free quotes: Darin Sergent Sergent Revital - Construction & Development darinsergent@mac.com 859-333-9549

ELLIPSIS A + D

5.00(
2
)

ELLIPSIS A + D

5.00(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
Avatar for Z7 Team Powered By First Stop Construction

Z7 Team Powered By First Stop Construction

4.76(
71
)

Z7 Team Powered By First Stop Construction

4.76(
71
)
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers

Hi, I'm Joe. I'm the General Contractor of the Z7Team. I run my own crew of dependable, loyal workers who love what they do. There's no salesmen, no middleman. Just the crew & I. When you make an appointment with us, you get me at your door, ready to help you with your home remodeling project. I'm hands-on, and come to the job site almost daily to ensure your project is going according to plan. Schedule an appointment today for a free quote!

"My wife and I worked with Joe to renovate our home in the South Bay. We basically tore everything down to the studs and did some reconfiguring of the interior, as well as redoing all plumbing and electrical. With Joe and his team, we transformed a home that hasn’t been renovated since the 60’s to the home of our dreams. We were referred to Joe by a trusted friend, and after a phone call with an overview of what our plans were, we met Joe in person at our home for an initial walkthrough. Both my wife and I were impressed with how thorough he was with details regarding the renovation; it was immediately obvious he was a master of his craft, with a vast amount of experience and knowledge in construction. More importantly, he’s down to earth and honest; his transparency was very much appreciated. Joe and his crew take pride in their work. He’d go above and beyond by suggesting certain looks or practical modifications to our original request; it often felt like he was renovating for himself! For the project, he provided a clearly marked timeline and walked us through all the options for both finished and unfinished materials. His encyclopedic knowledge of stores in the Bay Area saved us a lot of money, and we got exactly what we wanted to build our home with! Home renovation is never a easily forecasted task; there are many surprises or issues that come up. With Joe, we knew we were in good hands. When a challenge did come up, he made sure to explain the options to us and address it immediately. Communication is key in this process, and Joe excels at it - he’s very responsive by phone and text. His crew is polite and also share Joe’s willingness to educate and explain the process. All in all, we felt that Joe became a family friend in the construction business and have recommended him to multiple friends and family. If you are looking for top quality work, reasonable pricing, and a trustworthy expert, look no further than Joe Arielli and his team!"

Kevin H on November 2018

Hi, I'm Joe. I'm the General Contractor of the Z7Team. I run my own crew of dependable, loyal workers who love what they do. There's no salesmen, no middleman. Just the crew & I. When you make an appointment with us, you get me at your door, ready to help you with your home remodeling project. I'm hands-on, and come to the job site almost daily to ensure your project is going according to plan. Schedule an appointment today for a free quote!

"My wife and I worked with Joe to renovate our home in the South Bay. We basically tore everything down to the studs and did some reconfiguring of the interior, as well as redoing all plumbing and electrical. With Joe and his team, we transformed a home that hasn’t been renovated since the 60’s to the home of our dreams. We were referred to Joe by a trusted friend, and after a phone call with an overview of what our plans were, we met Joe in person at our home for an initial walkthrough. Both my wife and I were impressed with how thorough he was with details regarding the renovation; it was immediately obvious he was a master of his craft, with a vast amount of experience and knowledge in construction. More importantly, he’s down to earth and honest; his transparency was very much appreciated. Joe and his crew take pride in their work. He’d go above and beyond by suggesting certain looks or practical modifications to our original request; it often felt like he was renovating for himself! For the project, he provided a clearly marked timeline and walked us through all the options for both finished and unfinished materials. His encyclopedic knowledge of stores in the Bay Area saved us a lot of money, and we got exactly what we wanted to build our home with! Home renovation is never a easily forecasted task; there are many surprises or issues that come up. With Joe, we knew we were in good hands. When a challenge did come up, he made sure to explain the options to us and address it immediately. Communication is key in this process, and Joe excels at it - he’s very responsive by phone and text. His crew is polite and also share Joe’s willingness to educate and explain the process. All in all, we felt that Joe became a family friend in the construction business and have recommended him to multiple friends and family. If you are looking for top quality work, reasonable pricing, and a trustworthy expert, look no further than Joe Arielli and his team!"

Kevin H on November 2018

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FAQs for second story addition building service projects in Union City, CA

For many homeowners, building up is worth the expense because it provides the extra bedrooms or living areas that can’t be accommodated within the existing footprint. A larger, updated home often commands a higher resale price, recouping a sizable share of the project cost while allowing you to stay in the neighborhood you love. Run the numbers with a real estate agent and contractor to ensure the expected return and day-to-day benefits align with your goals.

Whether it makes more sense to build up or out depends on your lot, budget, and local code. Building up preserves yard space and involves less foundation work, but you may need to vacate the home during construction. Building out avoids staircases and can proceed while you stay put; however, it encroaches on the yard and may face setback limits. Compare both options with your contractor before making a decision.

A structural engineer will first inspect the existing foundation for cracks, footings, and load capacity. Depending on the findings, the crew may pour new concrete footings, install steel or concrete piers, add reinforced beams, or tie additional rebar into the slab. These upgrades redistribute the weight of the new floor and bring the structure up to code. Your contractor will outline the specific reinforcement plan and timeline once the engineering report is complete.

The Union City, CA homeowners’ guide to second story addition building services

From average costs to expert advice, get all the answers you need to get your job done.

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