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Addition Contractors in Carlsbad, CA

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Service Pros

    ROYALTY DESIGN & BUILD Logo
    San Diego, CA·

    Kitchen remodeling, Whole home remodeling, Exterior remodeling , and 1 more

    "We wanted to get our 3 bathrooms redesigned and had a few plans in mind as far as design. After getting quotes from a few contractors, we decided to go with Royalty design & build. Their quote was very competitive and they were very professional. We wanted the work to be done as quickly as possible before our vacation in Europe. Lavi promised us that it will be done in 8 weeks and he kept his word. As the work began, we had some issues regarding structural, but Lavi was very efficient and worked around it to solve the issue and give us exactly what we had asked for. Even with the materials, Lavi made sure we got a good deal and also helped save some cost with his contractor license discounts. We got a great looking bathrooms and our friends loved it too. Would 100% recommend this awesome group!"

    Mark C. in November 2024

    Shiro Builders Group Logo
    San Diego, CA·

    New Construction, Kitchen Remodeling, Home Additions , and 2 more

    "We were quoted by 3 other contractors and Shiro definitely ended up being the most reasonably priced and also the most professional at the same time. We had a retaining wall and pavers put in with drainage, along with installing an extra propane outlet for a fire pit, and everything went as planned and came out great! Smooth and easy process, would highly recommend Shir and his crew."

    BDA79407F1087C1F6D4DFF088590085F670B683F1FEF9046862B9EEFCD70C047 0. in September 2026

    R C B CONSTRUCTION Logo
    SPRING VALLEY, CA·

    Kitchen and Bath Remodels, Deck Builds, Alaternate Dwelling Units , and 2 more

    "I can’t say enough good things about Jake and his construction company. He recently completed an addition on our home, and the entire experience was outstanding from start to finish. Jake was professional, dependable, knowledgeable, and took a lot of pride in his work. He kept us informed throughout the project, paid attention to the details, and made sure everything was done right instead of cutting corners. The quality of the finished addition exceeded our expectations and looks like it was always meant to be part of the house. It’s hard to find a contractor you can truly trust, but Jake is one of them. He showed up, followed through on what he promised, and treated our home with respect. We couldn’t be happier with how everything turned out. I would recommend Jake and his company without hesitation to anyone looking for quality construction work. Five stars all the way — we would absolutely hire him again!"

    4EAD13B3B5C9E15BD3F1172F3A0CB83F68D9B7DAB1BD2D5895C7F395BC4C840C A. in August 2026

    Title
    Murrieta, CA·

    "Al and his assistant installed two window air conditioning units in windows that another installer said could not be done. The other installer from TaskR installed one of the units in a non-preferred window and left quite a mess, including crooked drill holes in my wooded sills. (My place is 105 years old, but my window sills have metal frames and modern windows.) Al and his assistant’s work was perfection! I was so pleased, I have already referred Al to 2 neighbors. Al is great at communication, very pleasant to work with, and honest. They cleaned up everything and offered to take the boxes and packing materials out to my bins. This was a relatively small job, but worth the money. Al charges a 2-hour minimum, which is more than fair. I will hire Al again and continuing recommending him and his team."

    DE439474EC46783F21573EFC03A9A014884D4499CC92D0DF1960CBD40DDAA503 6. in September 2026

    Golden Shore Design and Build, Inc. Logo
    San Diego, CA·

    Remodels, Additions

    "Out of all the companies I met with Golden ahore design and built were the best choice Highly recommend!!"

    James H. in February 2023

    PM

    "We recently hired Pen and Mason to expand our pantry, build a custom coffee bar, install new electrical outlets, and replace the carpet on our stairs with beautiful vinyl plank flooring — and we could not be happier with the results! From start to finish, their team was professional, friendly, and attentive to detail. They took the time to understand our vision, offered helpful suggestions, and executed the work flawlessly. The pantry expansion is so functional, the coffee bar is my new favorite spot in the house, and the new flooring completely transformed our stairs. They also handled the electrical work seamlessly, ensuring everything was up to code and perfectly placed and they also put up with my picky husband in the process."

    4F5C92B491AC45616D7B35947ECB5FA88D6E8A9ED8DC9F9B9548A9A289861B34 C. in August 2025

    Olalde Group, Inc. Logo
    Covina, CA·

    Additions and Remodels, Kitchen remodels, Custom Home Building , and 3 more

    "Efrain and David are fantastic! When our contractor was suddenly unable to continue with the job, David took over with a great positive attitude. He persistently worked with the city to get the building permit, finally ending a tedious 10 month process. Crews were here working every day. Each one of them was considerate, conscientious, and demonstrated a strong work ethic. Efrain and David communicated with us most days and were always accessible to us. My ADU is adorable and just what we wanted and I am sure that many contractors could have pulled it off. The important thing about Olalde is that they truly care and honestly want us to be happy."

    Judy M. in October 2023

    BD Project & Design Logo
    San Diego, CA·

    Kitchen Design & Remodeling, Bathroom Design and Remodeling, Room Additions , and 5 more

    "We are extremely happy with the high quality job completed by 1-Stop Contractors especially in their very competitive price. We have to say it was one of the best experiences we had on dealing with the contractors. They have maintained the timeline and budget precisely as promised and even extend their work to ensure our satisfaction. Kevin was honest and excellent communicator and successfully clarified all the details of the work in their contract and executed as he committed. We highly recommend 1-Stop Contractors among all other painters and contractors and we are sure we will be asking for next project to them again."

    Masashi K. in December 2004

    BE HOME REMODELING INC Logo
    San Jose, CA·

    Kitchen Remodels, Major Renovations , ADU , Design service, roof , and 2 more

    "After they redid our counter tops and island, we had them paint out cabinets and build shelves up to the ceiling. The communication was on point this time and the results speak for themselves. Would definitely recommend them to anyone for any home project."

    579B05ED6C49D67A382683F5EBB77926035FDC4FE13C89D2670E2EA034DA6B6C 1. in December 2025

Showing 1-9 of 38 results

How much do addition contractors typically cost?

  • Carlsbad, California Average
    $88,581
  • Typical Range
    $35,000 - $82,000
  • Low End - High End
    $21,000 - $298,000

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 Carlsbad, CA

HomeAdvisor Community Rating

Overall Rating:

Carlsbad Addition & Remodeling Contractors are rated 4.9 out of 5 based on 216 reviews of 216 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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