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Addition to existing structure builders in San Francisco

Avatar for Royalty Builders, Inc.
Royalty Builders, Inc.
228 Hamilton Ave 3rd Floor
5.00(
14
)
Approved Pro
Royalty Builders, Inc.
228 Hamilton Ave 3rd Floor
5.00(
14
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
25 years of experience

Royalty Builders Inc 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 customer's interests and make their concerns the basis of our business. Please give us a call today 855-744-4424

"Bathroom remodeling Panel upgrade I want to tank royalty builders for the new bathroom the design and the crew was great we are happy with out new bathroom"

Vilma T on June 2024

Royalty Builders Inc 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 customer's interests and make their concerns the basis of our business. Please give us a call today 855-744-4424

"Bathroom remodeling Panel upgrade I want to tank royalty builders for the new bathroom the design and the crew was great we are happy with out new bathroom"

Vilma T on June 2024


Superb Builders & Custom Made Cabinetry INC
1234 S Orange Grove Ave
3.64(
33
)
Approved Pro
Superb Builders & Custom Made Cabinetry INC
1234 S Orange Grove Ave
3.64(
33
)
Approved Pro
12 local quotes requested
21 years of experience

Superb Builders, Inc. have been in business since 2004, providing the best quality work in Oakland and the surrounding areas. With years of experience, we are reliable and professional. We take great pride in our commitment to quality and will always make sure that our customers are left smiling! We offer several services and we promise that we will provide great customer service, plus the highest quality of work for each project. Our minimum requirement for any project is $2,500 You may contact us today to meet with one of our professionals for your free estimate!

"Kitchen looks good but the quality of work is disappointing. Flooring they recommended is peeling up and they did not pit caulking along a certain part of the counter. Also they charged me for an electrical panel that kept turning off my stove or garbage disposal if I turned on too many appliances. So upset that I trusted the main person."

Micki M on September 2020

Superb Builders, Inc. have been in business since 2004, providing the best quality work in Oakland and the surrounding areas. With years of experience, we are reliable and professional. We take great pride in our commitment to quality and will always make sure that our customers are left smiling! We offer several services and we promise that we will provide great customer service, plus the highest quality of work for each project. Our minimum requirement for any project is $2,500 You may contact us today to meet with one of our professionals for your free estimate!

"Kitchen looks good but the quality of work is disappointing. Flooring they recommended is peeling up and they did not pit caulking along a certain part of the counter. Also they charged me for an electrical panel that kept turning off my stove or garbage disposal if I turned on too many appliances. So upset that I trusted the main person."

Micki M on September 2020


Universal Construction Company
161 Martin Place
4.71(
7
)
Approved Pro
Universal Construction Company
161 Martin Place
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.
58 W Portal Ave, Unit 150
New on HomeAdvisorNew on Angi
Approved Pro
RSB Construction Group Inc.
58 W Portal Ave, Unit 150
New on AngiNew 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.
1976 Powell St Unit # 4
5.00(
5
)
Approved Pro
Kasas Builders, Inc.
1976 Powell St Unit # 4
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
40 12th Street
4.50(
2
)
Approved Pro
Ashbury General Contracting and Engineering
40 12th Street
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


Robert Hauser Construction
2734 20th St Apt 1
New on HomeAdvisorNew on Angi
Approved Pro
Robert Hauser Construction
2734 20th St Apt 1
New on AngiNew on HomeAdvisor
Approved Pro
22 years of experience
Free onsite estimate

We are 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

We are 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


Avatar for Level 8 Construction Inc.
Level 8 Construction Inc.
337 12th Ave
5.00(
1
)
Approved Pro
Level 8 Construction Inc.
337 12th Ave
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
2341 W Ave #133
5.00(
2
)
Approved Pro
AM GENERAL CONTRACTOR
2341 W Ave #133
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
881 Hurlingame Ave
New on HomeAdvisorNew on Angi
Approved Pro
Springs Construction Corporation
881 Hurlingame Ave
New on AngiNew 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.

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Addition to existing structure building services FAQs

How far you can push a room depends on the structure you choose. A cantilevered bump-out can extend 24 inches before building codes require its own footing or foundation. Anything longer needs engineered support and a permit. Check local codes or consult with a structural professional before finalizing plans to ensure your design remains safe and compliant.

Most bump-outs are completed within one to four weeks, even with minimal electrical, plumbing, or HVAC work. Their compact size means less demolition, simpler inspections, and fewer weather-related delays compared to a full-scale addition. Your contractor can provide a more precise timeline once they have determined the scope, materials, and permit schedule, but plan on having the extra square footage ready in approximately a month.

The 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.
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Budget for dormer addition costs based on factors such as roof type, framing, customizations, reinforcement, cladding, labor, and more.
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Need to replace your kitchen countertop? Here’s how much it costs, what factors affect cost, and what to expect.
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