How much do addition contractors typically cost?
- Oceanside, California Average$88,581
- Typical Range$34,000 - $200,000
- Low End - High End$21,000 - $298,000

Kitchen remodeling, Whole home remodeling, Exterior remodeling , and 1 more
"Royalty design and build installed the pavers in my backyard, and I love it! Lavi and his crew was super professional, communicative, and skilled. They helped me choose the perfect paver style and layout that would complement my backyard, and the final product exceeded my expectations. Overall, Iâ m very happy from the results and would highly recommend Royalty design and build to anyone!"
Nancy K. in November 2024

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

"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

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

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

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
Bathroom Remodels, ADU's, Framing , and 2 more
"Andres made sure that every detail of my kitchen remodeling job was done to my specifications and satisfaction. He is a very polite and kind person."
Tia H. in May 2024

Kitchen Remodel, ADU, Home Additions, Garage Convertions, Bathroom Remodel , and 2 more
"Great company to work with, very good communication and reasonably priced, everything was as described and agreed."
6140545B861C9BA08C082F011CB683552C2DB6185EFB3BF4D928177A70119CD8 E. in August 2026
New House Build, Major Construction and Renovation
"DM Building worked with the highest professionalism, expertise, and collaboration with the architects and designers. The new construction was meticulous in every detail and was visually stunning. Photos are available on a variety of real estate websites."
8904C61A98DBED62E64054642DFF2F3227718C6F6D27D5C435535A036CE66408 5. in May 2026
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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.
Oceanside Addition & Remodeling Contractors are rated 4.8 out of 5 based on 167 reviews of 167 pros.
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