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Find Second story addition builders in San Mateo

Avatar for Sentri Homes

Sentri Homes

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•Approved Pro

Sentri Homes

New on HomeAdvisorNew on HomeAdvisor
•Approved Pro
423 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.

CROCIANI CONSTRUCTION CO

5.00(
2
)

CROCIANI CONSTRUCTION CO

5.00(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Hames Construction, Inc

No reviews yet

Hames Construction, Inc

No reviews yet

VINTAGE CARPENTRY INC

5.00(
4
)

VINTAGE CARPENTRY INC

5.00(
4
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

OWNER-OPERATED. USES SUBS FOR ELECTRICAL, PLUMBING, DRYWALL, FRAMING, & PAINTING. COST IS DETERMINED BY THE JOB. NO ADDITIONAL TRAVEL CHARGES. NO SERVICE CHARGES. LICENSE NUMBER: 755565.

OWNER-OPERATED. USES SUBS FOR ELECTRICAL, PLUMBING, DRYWALL, FRAMING, & PAINTING. COST IS DETERMINED BY THE JOB. NO ADDITIONAL TRAVEL CHARGES. NO SERVICE CHARGES. LICENSE NUMBER: 755565.

Mac Arthur Construction Inc.

No reviews yet

Mac Arthur Construction Inc.

No reviews yet
20 years of experience

We are a group of Licensed Contractors that specialize in Residential Kitchen & Bathroom Remodeling in the Greater San Francisco Bay Area. We are Licensed, Bonded & Insured, and have a long list of satisfied customers from San Francisco to Gilroy to attest to our professional conduct, skill, and knowledge. We work with Designers, Architects, Engineers, and Homeowners to deliver the best price and workmanship for their projects. We do Large Scale, and Small Scale Projects that include Kichens-Bathroom-Additions-Windows-Doors-Cabinets-Storage-Fencing-Gates-Tile-Stone-Hardwood Floors-Stairs-Walkways, Driveways and more. Please visit our website at: www.macarthurconstruction.com, or Give us a call at (650)245-5575

We are a group of Licensed Contractors that specialize in Residential Kitchen & Bathroom Remodeling in the Greater San Francisco Bay Area. We are Licensed, Bonded & Insured, and have a long list of satisfied customers from San Francisco to Gilroy to attest to our professional conduct, skill, and knowledge. We work with Designers, Architects, Engineers, and Homeowners to deliver the best price and workmanship for their projects. We do Large Scale, and Small Scale Projects that include Kichens-Bathroom-Additions-Windows-Doors-Cabinets-Storage-Fencing-Gates-Tile-Stone-Hardwood Floors-Stairs-Walkways, Driveways and more. Please visit our website at: www.macarthurconstruction.com, or Give us a call at (650)245-5575

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

Avatar for branchhandyman.com

branchhandyman.com

No reviews yet

branchhandyman.com

No reviews yet
32 years of experience

Honesty, integrity, and Quality Workmanship Guarantee: On schedule completion Cost-effective process from beginning to end Final product exceeds expectations

Honesty, integrity, and Quality Workmanship Guarantee: On schedule completion Cost-effective process from beginning to end Final product exceeds expectations

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

Jonathan Cole Construction

No reviews yet

Jonathan Cole Construction

No reviews yet
7 years of experience

My company focuses on fine quality finishes and complete home remodeling, specializing in kitchen/bath/decks/fences/ADU, and all home renovation needs. We are clean, organized, and our finishes are top quality and beautiful. Lic# 1038356 insured/bonded/workman's comp

My company focuses on fine quality finishes and complete home remodeling, specializing in kitchen/bath/decks/fences/ADU, and all home renovation needs. We are clean, organized, and our finishes are top quality and beautiful. Lic# 1038356 insured/bonded/workman's comp

Fonseca Marble & Tile, INc.

5.00(
4
)

Fonseca Marble & Tile, INc.

5.00(
4
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Fonseca Marble and Tile a fully licensed, bonded, and insured company was founded by Rolando Fonseca in 1995 and has built a reputation for the highest quality of professional services in all phases of tile and marble installation, in both commercial and residential applications. BY APPOINTMENT ONLY Our goal is for the client to understand that this is a process rather than an event, and the process will ultimately allow the clients to express themselves through our collaboration. Because of our extensive history of working with architects, designers and general contractors, Fonseca Marble & Tile will provide you with the professional service you deserve and turn your dreams to reality!

Fonseca Marble and Tile a fully licensed, bonded, and insured company was founded by Rolando Fonseca in 1995 and has built a reputation for the highest quality of professional services in all phases of tile and marble installation, in both commercial and residential applications. BY APPOINTMENT ONLY Our goal is for the client to understand that this is a process rather than an event, and the process will ultimately allow the clients to express themselves through our collaboration. Because of our extensive history of working with architects, designers and general contractors, Fonseca Marble & Tile will provide you with the professional service you deserve and turn your dreams to reality!

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FAQs for second story addition building service projects in San Mateo, 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 San Mateo, 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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