How much do addition contractors typically cost?
- San Jose, California Average$104,095
- Typical Range$64,794 - $143,485
- Low End - High End$14,000 - $242,000
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Service Pros
AC
In business since 2011
San Jose, CA·
About us: "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."
In business since 2023
San Jose, CA·
About us: "ICON Home Builders is a luxury design-build contractor operating in Silicon Valley. ICON was established by Danny Safirstein, a seasoned professional in the realm of high-level luxury home construction and remodels. With a vision to create extraordinary living spaces that exude elegance and craftsmanship, Safirstein embarked on a journey to establish a company that would redefine the standards of the industry. Safirstein, driven by his passion for architecture and design, had spent over six years managing prestigious projects in the luxury home construction and remodeling sector in the Bay Area. His expertise and attention to detail earned him a reputation for delivering impeccable results. It was this rich experience that laid the foundation for ICON Home Builders. ICON Home Builders differentiates itself from the competition by emphasizing superior quality, meticulous attention to detail, and unparalleled customer service"
WC
In business since 2009
Campbell, CA·
Remodels and Additions
About us: "is committed to excellence 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. We have been in business since 2014, and our accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of the interests of our customers and make their concerns the basis of our business"
In business since 2022
San Jose, CA·
Kitchen Remodel, Roofing, Bathroom Remodel , and 2 more
About us: "Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!"
In business since 2000
San Jose, CA·
Bathroom Remodel, Kitchen Remodel, Additional Dwelling Units , and 1 more
About us: "Our start in Construction is from varied backgrounds and experiences. Yet, with every project, we bring an eye towards quality and craftsmanship. We ensure things are done correctly so that the end result is a professional appearance. We focus on projects in Santa Clara and San Mateo counties. We have done hundreds of projects that range from new Home Construction of more than 4000 square feet to entire Home Renovations. Finishing a project on time is important, but so is doing it correctly. Thus, during the entire process, we will keep you updated on the schedule, any potential delays or anything that might impact the timing of your project. When we are finished, you will love the results."
Woodland Hills, CA·
Residential Remodeling and Construction Services
"Price was reasonable, they did every in a short manner time."
Paloma V. in November 2021
San Jose, CA·
Garage Refinish/ Conversion, New construction, Kitchen & bathroom remodeling , and 2 more
"Eli and the team have been amazing. They took on a massive project to make our home accessible for our kid who uses a wheelchair. They built an accessible bathroom, built ramps around the house and made sure the bathroom door was able to accommodate a wheelchair. They gave a visual lift to our house by redoing our floors, modernizing the fireplace and adding recessed lighting. It is worth mentioning that they delivered with VERY high quality and ON time as promised. I highly recommend Alon design and remodeling for your house project. And they did it all while always smiling and being positive - a quality hard to find in a contractor. You won't be disappointed working with them."
Ramya R. in October 2021
MC
Milpitas, CA·
Addition to Existing Structure - Build
"They did a very good job, really liked them kept up the appointment. Over all great."
Adrian F. in January 2006
In business since 2019
Sunnyvale, CA·
With over 20 years of experience in the construction industry, Integrum Construction is your industry expert in Sunnyvale. We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a family owned and operated business you can trust that we will treat your home as we would treat our own. Give us a call today we look forward to working with you!
About us: "With over 20 years of experience in the construction industry, Integrum Construction is your industry expert in Sunnyvale. We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a family owned and operated business you can trust that we will treat your home as we would treat our own. Give us a call today we look forward to working with you!"
Showing 1-9 of 72 results
Costs for related projects in San Jose, CA
- Build an Addition$64,794 - $143,485
- Demo an Interior$946 - $4,364
- Perform Home Renovations and Repairs$6,556 - $15,592
- Remodel or Renovate a House$65,487 - $152,227
Frequently asked questions
- It’s important that you verify their license is still in good standing. Also keep in mind that certain states or provinces don’t require licensing if the job is under a certain dollar amount.
- You can find a list of your state’s licensing requirements on the HomeAdvisor website. Before you get to work with the pro, make sure their qualifications are current and acceptable to you.
- It is always a good idea to get a copy of the pro’s insurance certificate for future records, and in case anything happens. This is a good way to feel more secure in your home project, and to weed out potential scammers.
HomeAdvisor makes it easy to connect with pros near you. You can read reviews, get quotes and book appointments all in one place.
Depending on the type of project, you may find subtle differences in the hiring process. Here’s a look at task-specific advice.
You can use HomeAdvisor to help evaluate a contractor’s qualifications. We put pros through a screening process, and award badges to high-performing contractors. You can find these badges on a pro’s HomeAdvisor profile, and sometimes, his or her website.
Your research doesn’t stop here. Once you’ve found a few prospective companies, make an call to ask a few questions about work history, licensure and more:
- Have you completed a job like this before?
- Do you have a list of references I can contact?
- When are you able to start the job?
In most cases, the responses you get to these three questions will give you a very good idea of the right pro for your project. If you have more than one front-runner, these additional questions can help you narrow it down.
- How many years of experience do you have?
- What’s your permanent business address?
- Are you licensed to work in my area?
- When did you earn your business license?
- How do you handle warranty service complaints?
- Do you have worker’s compensation, property damage and personal liability insurance?
Any good contractor will answer these questions, and most will appreciate dealing with a client that takes such an active interest in finding good service. On the other hand, if a contractor gives you a hard time with these questions, you probably want to find someone else.
Related Projects in San Jose, CA
HomeAdvisor Community Rating
Overall Rating:
San Jose Addition & Remodeling Contractors are rated 4.8 out of 5 based on 695 reviews of 695 pros.
The HomeAdvisor Community Rating is an overall rating based on verified reviews and feedback from our community of homeowners that have been connected with service professionals. See individual business pages for full, detailed reviews.
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Recent Job Requests for Addition & Remodeling Contractors in San Jose, CA
NewProject Location: San Jose, CA Date: 01/06/24Project Description: Build - use existing architectural drawingsComment: Greenhouse assembly from Home DepotNewProject Location: San Jose, CA Date: 01/06/24Reason for Cable: 1Type of Addition: Ground level additionProject Description: Design and buildWhat types of rooms/spaces are you interested in adding to your home?: Bathroom(s)What types of rooms/spaces are you interested in adding to your home?: KitchenWhat types of rooms/spaces are you interested in adding to your home?: Living/family roomWhat types of rooms/spaces are you interested in adding to your home?: Bedroom(s)Comment: Customer did not provide additional comments. Please contact the customer to discuss the details of this project.NewProject Location: San Jose, CA Date: 01/05/24What best describes this home addition project?: Design and buildWhat kind of addition do you want?: Convert or finish existing spaceWhat best describes this project?: Addition to homeWhat room(s)/space(s) are you interested in adding to your home?: Bathroom(s)What room(s)/space(s) are you interested in adding to your home?: Bedroom(s)Comment: Customer did not provide additional comments. Please contact the customer to discuss the details of this project.NewProject Location: San Jose, CA Date: 01/02/24Type of Addition: Ground level additionWhat types of rooms/spaces are you interested in adding to your home?: Bedroom(s)What types of rooms/spaces are you interested in adding to your home?: Bathroom(s)What types of rooms/spaces are you interested in adding to your home?: OtherProject Description: Design and buildComment: I have a 3 bed/1 bath house. About 1300+ sq ft. I would like to add a bedroom with bathroom/closet.NewProject Location: San Jose, CA Date: 01/01/24Type of Addition: Ground level additionProject Description: Design and buildWhat types of rooms/spaces are you interested in adding to your home?: Bedroom(s)What types of rooms/spaces are you interested in adding to your home?: OtherComment: Would like to build a bedroom and bathroom next to the kitchen areaProject Location: San Jose, CA Date: 12/30/23Project Description: Design and buildType of Addition: Ground level additionWhat types of rooms/spaces are you interested in adding to your home?: Bathroom(s)What types of rooms/spaces are you interested in adding to your home?: Bedroom(s)Comment: Customer did not provide additional comments. Please contact the customer to discuss the details of this project.Project Location: San Jose, CA Date: 12/29/23Type of Addition: Ground level additionProject Description: Design and buildProject Location: San Jose, CA Date: 12/29/23Type of Addition: Ground level additionProject Description: Design and buildWhat types of rooms/spaces are you interested in adding to your home?: KitchenComment: Customer did not provide additional comments. Please contact the customer to discuss the details of this project.Project Location: San Jose, CA Date: 12/29/23What types of rooms/spaces are you interested in adding to your home?: Bathroom(s)Type of Addition: Ground level additionProject Description: Design and buildComment: Customer did not provide additional comments. Please contact the customer to discuss the details of this project.Project Location: San Jose, CA Date: 12/29/23Type of Addition: Second story additionProject Description: Design and buildWhat types of rooms/spaces are you interested in adding to your home?: Bathroom(s)What types of rooms/spaces are you interested in adding to your home?: Bedroom(s)Comment: Customer did not provide additional comments. Please contact the customer to discuss the details of this project.Project Location: San Jose, CA Date: 12/28/23Desired Completion Date: Timing is flexibleRequest Stage: Planning & BudgetingLocation: Home/ResidenceComment: the floor is going up, we think there is problem with the foundation. How much would it cost to have engineer view the property?Project Location: San Jose, CA Date: 12/26/23What best describes this home addition project?: Design and buildWhat kind of addition do you want?: Ground level additionWhat room(s)/space(s) are you interested in adding to your home?: Living/family roomWhat best describes this project?: Addition to homeComment: Looking to include sunroom into living spaceProject Location: San Jose, CA Date: 12/23/23Type of Addition: Ground level additionProject Description: Design and buildWhat types of rooms/spaces are you interested in adding to your home?: Bathroom(s)What types of rooms/spaces are you interested in adding to your home?: Bedroom(s)What types of rooms/spaces are you interested in adding to your home?: OtherComment: I have a 3 bed/1 bath house. About 1300+ sq ft. I would like to add a bedroom with bathroom/closet.Project Location: San Jose, CA Date: 12/22/23Type of Addition: Detached additionProject Description: Build - use existing architectural drawingsWhat types of rooms/spaces are you interested in adding to your home?: OtherComment: Trying to add space to our homeProject Location: San Jose, CA Date: 12/22/23Type of Addition: Convert or finish existing spaceProject Description: Design and buildWhat types of rooms/spaces are you interested in adding to your home?: Bedroom(s)Comment: Need to build a 4th wall and a door to complete, along with recess lights, fan, electrical, paint and misc.Project Location: San Jose, CA Date: 12/19/23Type of Addition: Ground level additionProject Description: Build - use existing architectural drawingsWhat types of rooms/spaces are you interested in adding to your home?: Bedroom(s)Comment: Customer did not provide additional comments. Please contact the customer to discuss the details of this project.Project Location: San Jose, CA Date: 12/18/23Type of Addition: Ground level additionProject Description: Design and buildWhat types of rooms/spaces are you interested in adding to your home?: Living/family room
