How much do addition contractors typically cost?
- San diego, California Average$88,581
- Typical Range$42,779 - $136,828
- Low End - High End$21,000 - $298,000
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Service Pros
San Diego, CA·
Bathroom Remodel, Hardscapes, Exterior Painting , and 7 more
"I hired Apex American Homes here in Vista to refinish my kitchen and replace the countertops. I built this kitchen myself with my husband about 50 years ago, so keeping the original cabinet material was important to me. I just wanted everything refreshed and a new countertop. Igor was a pleasure to work with. He helped me pick the right materials while giving great advice on how to make the space more usable. His team didn’t just paint over the cabinets. They did everything the proper way, were very clean, punctual, and never cut corners. They even replaced all of the hinges for me. My kitchen looks so much better now and it brings back memories of when we first built it. Thank you for the wonderful work!"
A03BA0ECA6C2DD9951B29213ED1AACE4F9784FE3D0BD604B6D0C02B1C7EADDF6 5. in December 2025
La Jolla, CA·
Bathroom, Additions and Remodels, Concrete , and 2 more
"We have worked with Eran on two projects now: installation of new fireplace and re-do of existing all and a full remodel of our master bath. Both projects ended being exactly what we wanted and were completed in the timeframe he expected. For the master bath remodel we tore down the entire space and installed everything new - steam shower, toilets, bathtub, new cabinets, sinks, floors, etc. He is an excellent communicator and handled the whole project as if it was his own house, with the ultimate care. He was also sweet enough to surprise my kids with sweet treats multiple times - he is a super nice guy. USE HIM! He is amazing!"
Angelica S. in December 2021
Escondido, CA·
Additions, Outdoor Living, Whole House Remodels , and 2 more
"Jim is a great guy to work with!!! He was very understanding and responsive to all my questions and concerns. He oversaw the entire operation of removing a wall to open up the living area. This encompassed general demo and construction, electrical, resurfacing, matching texture and repainting. Followed by some special hardwood floor detail work. His team of workers are always excellent and considerate of us and our home. You will not be disappointed! It is very difficult to try and choose a contractor and I feel lucky to have found him!!"
Melody M. in November 2021
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"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
Poway, CA·
Additions and Remodels, Additions and Remodels, Custom Kitchen and Bathrooms , and 5 more
"Marco and his team did a great job on my kitchen after I had a leak. They were highly professional in every way and I hope to hire them again. I'm sure they do great work everywhere, but I especially recommend them if you live in Poway, as they are close by."
Andy S. in November 2023
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
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
"Excellent contractor, very professional, he was on time and did an amazing job, I highly recommend Chris Nikolsky !!"
Sarita A. in June 2023
DB
San Diego, CA·
Cabinets, Kitchen Remodeling, Bathroom Remodeling , and 4 more
"Barak and David were very professional. They guided me through the whole process and were always available for question. That went out of their way to ensure that the project was completed to the highest standard and within our original budget. The final remodel exceeded my original expectations."
Siobhan S. in September 2024
Showing 1-9 of 21 results
Costs for related projects in San diego, CA
- Build a Barn, Shed or Playhouse$3,487 - $6,200
- Build an Addition$42,779 - $136,828
- Demo an Interior$2,750 - $11,250
- Perform Home Renovations and Repairs$8,866 - $44,000
- Remodel or Renovate a House$29,871 - $115,927
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 diego, CA
HomeAdvisor Community Rating
Overall Rating:
San diego Addition & Remodeling Contractors are rated 4.8 out of 5 based on 223 reviews of 223 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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Project Location: San Diego, CA Date: 02/03/24Type of Addition: Second story additionProject Description: Design and buildWhat types of rooms/spaces are you interested in adding to your home?: Bedroom(s)Comment: Looking to add an addition above the garage - no plumbing, just bedroomsProject Location: San Diego, CA Date: 02/02/24Desired Completion Date: Less than 2 monthsRequest Stage: Planning & BudgetingRequires Work on Historical Structure: NoRequest for Commercial Location: NoProject Description: Design and buildWhat type of second floor addition will this be?: Addition above a garageRooms Included:: KitchenRooms Included:: Bedroom(s)Rooms Included:: Living/Family roomRooms Included:: Office(s)Rooms Included:: BathroomRooms Included:: Garage/WorkshopRooms Included:: Laundry/Mud roomComment: We currently have a 1400 square foot house, and we're looking to double it by adding on a second story and a 1 bedroom ADU above our garage. We have funding approved, but need to start on planning and design. Hoping to have it built by February 2025.Project Location: San Diego, CA Date: 02/02/24Type of Addition: Second story additionProject Description: Design and buildWhat 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: We are looking to add on to our existing home. We would like to add more bedroom/living space to our second story. There could be space above our garage that we are thinking we could utilize to add more bedroom space and potentially reconfigure some of the living space.Project Location: San Diego, CA Date: 02/01/24Desired Completion Date: Timing is flexibleRequest Stage: Ready to HireRequires Work on Historical Structure: NoRequest for Commercial Location: NoProject Description: Build - Use existing architectural drawingsRooms Included:: KitchenRooms Included:: Bedroom(s)Rooms Included:: Living/Family roomRooms Included:: BathroomWhat type of guest house/casita addition will this be?: Detached additionComment: Looking for a contractor to construct a 342 SF Guest Quarters. I have an architect and a plan set.Project Location: San Diego, CA Date: 01/31/24Type of Addition: Ground level additionProject Description: Design and buildWhat types of rooms/spaces are you interested in adding to your home?: OtherProject Location: San Diego, CA Date: 01/29/24Type 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: Converting a 3 door attached garage to a one bed room ADU with all the living amenities.Project Location: San Diego, CA Date: 01/25/24Type 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: 2 BR, 1 BATH, SMALL KITCHEN/SINK AND BALCONY OVER 18X20 GARAGE. SHINGLE ROOFING. WOULD LIKE TO DEAL WITH ADU KNOWLEDGABLE CONTRACTORS.Project Location: San Diego, CA Date: 01/24/24What best describes this home addition project?: Build from existing designsWhat kind of addition do you want?: Second story additionWhat 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)What room(s)/space(s) 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 Diego, CA Date: 01/24/24Type 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)Comment: Customer did not provide additional comments. Please contact the customer to discuss the details of this project.Project Location: San Diego, CA Date: 01/22/24Desired Completion Date: Less than 2 monthsRequest Stage: Planning & BudgetingProject Description: Design and buildComment: Customer did not provide additional comments. Please contact the customer to discuss the details of this project.Project Location: San Diego, CA Date: 01/19/24Type 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)Comment: Add a jacuzzi and 2-3 twins.Project Location: San Diego, CA Date: 01/18/24What best describes this home addition project?: Design and buildWhat kind of addition do you want?: Second story additionWhat 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: We have a ranch and would like to build up and add a second story to account for our growing family. Ideally 2-3 more bedrooms and at 1-2 more bathrooms.Project Location: San Diego, CA Date: 01/17/24Type of Addition: Detached 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: Want to investigate adding an ADU to our property along Cuca StreetProject Location: San Diego, CA Date: 01/16/24Project Description: Build - use existing architectural drawingsWhat types of rooms/spaces are you interested in adding to your home?: Bathroom(s)Type of Addition: Ground level additionWhat 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 Diego, CA Date: 01/14/24Type 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)Comment: currently it’s a standard 2/1 with 1000 sqft in San Diego. Small garage on the right. We want to delete the garage, extend the house the 10ft along the entire length, add a side load garage in the front, and also extend the front towards the road since set back rules have changed. Wanting a 4/2+ when it’s all said and done.
