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Find Addition to existing structure builders in San Francisco

Universal Construction Company

4.71(
7
)
Approved Pro

Universal Construction Company

4.71(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
45 years of experience

We are a locally owned and operated company that values honesty and integrity, and treats your home as if it were our own. We offer a variety of general contractor and home improvement services that are customizable to each individual project. We specialize in additions and bathroom remodels, but also offer a wide range of expertise for a variety of other projects. We pride ourselves on the quality of our work, as well as our commitment to outstanding results. We look forward to building lasting relationships, and guarantee your satisfaction!

"He is very good, communicates well, and he is there when he says he will be and very thorough! I liked doing business with him! He explains everything that he will do before he does the job and he listens to my suggestions."

Marilyn B on June 2019

We are a locally owned and operated company that values honesty and integrity, and treats your home as if it were our own. We offer a variety of general contractor and home improvement services that are customizable to each individual project. We specialize in additions and bathroom remodels, but also offer a wide range of expertise for a variety of other projects. We pride ourselves on the quality of our work, as well as our commitment to outstanding results. We look forward to building lasting relationships, and guarantee your satisfaction!

"He is very good, communicates well, and he is there when he says he will be and very thorough! I liked doing business with him! He explains everything that he will do before he does the job and he listens to my suggestions."

Marilyn B on June 2019


RSB Construction Group Inc.

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

RSB Construction Group Inc.

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
4 years of experience
Free onsite estimate

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!


Avatar for Kasas Builders, Inc.

Kasas Builders, Inc.

5.00(
5
)
Approved Pro

Kasas Builders, Inc.

5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
7 years of experience

Kasas Builders has 6 years in the construction industry. We love working with homeowners and seeing the beautiful finished products that our teams create. We take pride in our work and always strive for perfection. Call Kasas Builders to schedule your free estimate today!

"Hassle free experience."

Sudanshu B on August 2019

Kasas Builders has 6 years in the construction industry. We love working with homeowners and seeing the beautiful finished products that our teams create. We take pride in our work and always strive for perfection. Call Kasas Builders to schedule your free estimate today!

"Hassle free experience."

Sudanshu B on August 2019


Ashbury General Contracting and Engineering

4.50(
2
)
Approved Pro

Ashbury General Contracting and Engineering

4.50(
2
)
Approved Pro
Customers say: Terrific value
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
35 years of experience

Mon-Fri 7a-5pm Fully integrated company. All work is done in-house by employees not sub-contractors. We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forwards to earning your business! Book with us online or feel free to give us a call today!

"Great work for a great price."

Paul H on March 2023

Mon-Fri 7a-5pm Fully integrated company. All work is done in-house by employees not sub-contractors. We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forwards to earning your business! Book with us online or feel free to give us a call today!

"Great work for a great price."

Paul H on March 2023


Avatar for Level 8 Construction Inc.

Level 8 Construction Inc.

5.00(
1
)
Approved Pro

Level 8 Construction Inc.

5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
20 years of experience

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

"I found this company to be very responsive and fair, they were extremely easy to work with, I wold highly recommend them to anybody."

Pete S on August 2020

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

"I found this company to be very responsive and fair, they were extremely easy to work with, I wold highly recommend them to anybody."

Pete S on August 2020


AM GENERAL CONTRACTOR

5.00(
2
)
Approved Pro

AM GENERAL CONTRACTOR

5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
22 years of experience

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


Avatar for Springs Construction Corporation

Springs Construction Corporation

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Springs Construction Corporation

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
66 years of experience
Free onsite estimate

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.


Avatar for T Prior Building Co

T Prior Building Co

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

T Prior Building Co

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
1 years of experience

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!


Avatar for S&L REMODELING AND DESIGN INC

S&L REMODELING AND DESIGN INC

4.92(
36
)
Approved Pro

S&L REMODELING AND DESIGN INC

4.92(
36
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
27 local quotes requested

S&L Remodeling and Design are committed to providing honest, professional services and sincerely understanding your needs. We provide a clean and safe job site every day and make sure that the project gets done right the first time. Our team is always staying on top of the latest trends as well as training and expanding our knowledge regarding the newest construction and design solutions available, including the use of cutting-edge technology. We are ready for whatever project you throw our way.

"Did a remodeling with S&L, they've done a great job. Team is responsible and project deadline was on time. Daniel was great to work with! Highly recommended"

David D on May 2023

S&L Remodeling and Design are committed to providing honest, professional services and sincerely understanding your needs. We provide a clean and safe job site every day and make sure that the project gets done right the first time. Our team is always staying on top of the latest trends as well as training and expanding our knowledge regarding the newest construction and design solutions available, including the use of cutting-edge technology. We are ready for whatever project you throw our way.

"Did a remodeling with S&L, they've done a great job. Team is responsible and project deadline was on time. Daniel was great to work with! Highly recommended"

David D on May 2023


Avatar for Geico Builders

Geico Builders

5.00(
31
)
Approved Pro

Geico Builders

5.00(
31
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
396 local quotes requested

Geico Builders specializes in meeting your expectations before, during, and after the project is complete. Our most upstanding quality is our accountability--you can expect us to own the work we complete for your home. Of course, we know accountability means nothing without proof, which is why we are happy to offer a 2-year workmanship warranty to all of our clients. This is a rare quality for this industry, but we wanted to prove to you that we stand by our craftsmanship through our home remodeling construction services. Every Crew at Geico Builders has been professionally trained and will treat your home with integrity and respect.

"We recently hired Geico Builders for a full home remodel, and the entire experience was fantastic. Their team worked quickly without cutting corners, and everyone who came into our home was friendly and respectful. They kept us updated throughout the project and made sure we felt comfortable with every step. What impressed me most was how clean they left the house each day no mess, no clutter. The final result turned out even better than we imagined. Truly a professional crew."

Sara W on November 2025

Geico Builders specializes in meeting your expectations before, during, and after the project is complete. Our most upstanding quality is our accountability--you can expect us to own the work we complete for your home. Of course, we know accountability means nothing without proof, which is why we are happy to offer a 2-year workmanship warranty to all of our clients. This is a rare quality for this industry, but we wanted to prove to you that we stand by our craftsmanship through our home remodeling construction services. Every Crew at Geico Builders has been professionally trained and will treat your home with integrity and respect.

"We recently hired Geico Builders for a full home remodel, and the entire experience was fantastic. Their team worked quickly without cutting corners, and everyone who came into our home was friendly and respectful. They kept us updated throughout the project and made sure we felt comfortable with every step. What impressed me most was how clean they left the house each day no mess, no clutter. The final result turned out even better than we imagined. Truly a professional crew."

Sara W on November 2025

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FAQs for addition to existing structure building service projects in San Francisco, CA

You can typically raise your roof by four to eight feet, depending on your home's structure and roof design. The exact amount depends on factors like roof slope and framing support. Raising the roof creates additional interior space, enhances natural light, and increases your home's value. Consult a professional to determine the feasible height increase for your home.

Yes, you need a building permit to raise your roof. Obtaining a building permit ensures your project complies with local building codes and safety regulations. A professional contractor can assist with the permit and inspection process and ensure all legal and safety requirements are met. Your contractor will be familiar with building codes in your area, which can differ between cities or states.

While it's possible to raise a flat roof, it requires extensive structural modifications. Flat roofs lack the attic space and support structures of pitched roofs, so raising them involves significant engineering to ensure safety and durability. This process can be complex and costly, so professional assessment is essential before undertaking a project of this magnitude.

The San Francisco, CA homeowners’ guide to addition to existing structure building services

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