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Addition Contractors in Altadena, CA

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Service Pros

    Dream Home Design & Build, Inc. Logo
    Winnetka, CA·

    room additions, bathroom/kitchen design, home renovations , and 2 more

    "Dream Home Construction showcased aesthetic brilliance in our kitchen remodel. The team's creative approach and attention to detail were evident in every aspect of the project. They collaborated with us to understand our style and preferences, and the result is a kitchen that is not only functional but also a visual masterpiece."

    Alexander . in December 2023

    Axe Construction Logo
    Los Angeles, CA·

    Outdoor - Remodel, Addition to Existing Structure - Build, Additions and Remodels , and 2 more

    "The process of remodeling our home went without a hitch! They were completely transparent about every step and had great communication. I will be recommending to my friends and family."

    Frank A. in December 2020

    Green Planet Remodeling Logo
    Beverly Hills, CA·

    Roofing, Bathroom Remodeling, Garage Conversions , and 2 more

    "Green Planet Remodeling Inc. helped us with our kitchen remodeling project. We were very pleased with the entire experience. We have two infants, and Jonathan, the project lead, was very respectful of our space and needs. He kept noise and dust to a minimum, and communicated with us constantly to let us know what was happening and when. Jonathan even made sure that his workers respected our needs. Jonathan is a details guy, and takes pride in his work, which is obvious in the workmanship. He made adjustments when unexpected issues came up, and went out of his way to identify and help correct some issues that were not strictly in the scope of the work. Most importantly, we were very happy with the final product, and we would definitely hire Green Planet Remodeling Inc. again."

    Alma D. in December 2019

    R Design, Inc. Logo
    Burbank, CA·

    Bathroom - Remodel-Additions, Paint-Drywall - Repair, Major Renovation - Multiple Rooms , and 2 more

    "VERY FRIENDLY AND GREAT WORKMANSHIP"

    Neal L. in November 2015

    House R Us Logo
    Woodland Hills, CA·

    Remodeling, Sunrooms, Windows & Doors , and 2 more

    "It was a wonderful experience getting House R Us team onboard a project to remodel multiple bathrooms in our LA home. They quickly measured out each of the spaces and by the end of our meeting, I had 3 bathrooms completely transformed with beautiful 3d simulation images. We set up another meeting with Oren joining us to finalize the project. It was a pleasant experience to hear his honest approach to what we could expect moving forward with our designs and the project plan. The tiles are really beautiful and all the fittings look very premium while the pricing was very effective and justified. I would highly recommend them to anyone looking to add a premium look to their house. Efficient, professional, and honest."

    Lancy S. in December 2020

    SoCal Green Roofing & Builders Logo
    Encino, CA·

    Roofing

    "I really enjoyed working with them. They gave good prices and provided good quality work."

    Itsik A. in October 2019

    VH
    Woodland Hills, CA·

    Bathroom Remodels, New Construction, Room Additions , and 2 more

    "Vivid Homes was such an Amazon company to work with. They designed and built my dream kitchen. They were very straightforward, honest and easy to work with. I always got all my questions answered in a timely manner. I highly recommend working with Vivid Homes. My dream kitchen turned into a reality."

    Orli L. in October 2023

    Hi-Tech Builders, Inc. Logo

    In business since 1991

    Encino, CA·

    About us: "Years of experience and a company-wide commitment to excellent work and integrity have earned Hi-Tech Builders Inc. the trust and respect of the community. Experience the care and craftsmanship we put into every remodel and renovation project. We guarantee your total enjoyment and a custom feel to your dream design and renovation. Please note we DO NOT do any commercial properties."

    AS
    Huntington Beach, CA·

    "Their building design services offered a distinctive blueprint that maximized every inch of our space efficiently. It's a perfect blend of creativity and functionality, tailored to our lifestyle and needs."

    Martin G. in July 2024

Showing 1-9 of 30 results

How much do addition contractors typically cost?

  • Altadena, California Average
    $91,356
  • Typical Range
    $50,000 - $91,356
  • Low End - High End
    $8,540 - $200,000

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 Altadena, CA

HomeAdvisor Community Rating

Overall Rating:

Altadena Addition & Remodeling Contractors are rated 4.8 out of 5 based on 360 reviews of 360 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 Altadena, CA

    • Project Location: Altadena, CA
      Date: 02/04/24
      Type of Addition: Ground level addition
      Project Description: Design and build
      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?: Kitchen
      What types of rooms/spaces are you interested in adding to your home?: Living/family room
      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: Altadena, CA
      Date: 01/23/24
      Desired Completion Date: Timing is flexible
      Request Stage: Planning & Budgeting
      Requires Work on Historical Structure: No
      Request for Commercial Location: No
      Project Description: Build - Use existing architectural drawings
      Rooms Included:: Kitchen
      Rooms Included:: Bedroom(s)
      Rooms Included:: Bathroom
      Rooms Included:: Laundry/Mud room
      What type of guest house/casita addition will this be?: Detached addition
      Comment: Have existing plans. I am contacting structural engineers for help and pricing out the required grading for foundation. I have already paid a contractor to do the Title-24 calculations. I'm also awaiting a bid on the water/sewer run. Need a consultant on the construction side to advise and perhaps get involved later in the project.
    • Project Location: Altadena, CA
      Date: 01/18/24
      Reason for Cable: 1
      Type of Addition: Second story addition
      Project Description: Design and build
      What types of rooms/spaces are you interested in adding to your home?: Other
      Comment: I’m looking to add an apartment on top of my garage
    • Project Location: Altadena, CA
      Date: 01/07/24
      Type of Addition: Second story addition
      Project Description: Design and build
      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?: Bedroom(s)
      Comment: Add 2nd story with 2 bedrooms and 2 baths and remodel kitchen and existing 1st floor

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