Top-rated addition to existing structure builders.

Get matched with top addition to existing structure builders in Castaic, CA

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Addition to existing structure builders in Castaic

Avatar for So Cal Builders & Design Inc
So Cal Builders & Design Inc
4.6(
270
)

Serving Castaic, CA and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1982

Free estimates

Warranties offered

"Our initial meeting with Suj was great. Initially, we had in mind a much larger job. He had quoted us $3000 for the closet demolition / wall rebuild (non-load bearing), packaged with several other items. Together with the fee for drawings ($4000) and permits, this was a bit higher than we anticipated. However, we decided to go with Suj due to his responsiveness and professionalism. Out of our other quotes, Suj’s pricing was middle of the pack - not the cheapest or most expensive. When the drawings were complete and evaluated, he gave us an updated cost of $6000 over text message. The scope of work had changed, and this was no longer part of a bigger project - understandable. The issue was when he gave us the official estimate a week later and up’d the price once again to $9000. When asked what happened, his exact words were “well, I need to get paid too”. He had weeks to consider before quoting the $6000 and nothing had changed since then. The extra $3000 may be insignificant compared to most renovation costs, but for us in our first home, this was back breaking. We continued with Suj since we were already locked in and well past the 3 day cancellation period. Their work for the most part was exceptional. The new wall blended perfectly into our existing structure, and the ceiling patch was also well done. The problem here was the floor. They had dug up a 1” deep pit in the floor, likely to remove the wall studs. However, they did not patch the floor or even let us know this was going to be an issue. We were never told about the pit until I decided to check in on their progress one day towards the end of the wall build. This required us to pay a handyman to come in next day on a weekend to patch the concrete since we had cabinets being installed the following Tuesday. Suj was aware of this and did not believe it pertinent information. Overall, Suj and SoCal Builders do quality work, but the issues in pricing consistency lost us before the work even started. Not even telling us that we’d be left with a 1” deep pit in our floor after was another huge issue which should’ve been brought up much earlier. This was our first experience with a contractor and I’m not sure if this is typical or not. However, it’s enough to make me doubt I’d contact them for any future work."
Completely renovating both the guest and master bathrooms. In the master bathroom, we're installing a spacious walk-in shower featuring dual black-finished shower heads, elegant floating benches, and marble wall tiles. Meanwhile, the guest bathroom will have a sleek built-in tub and stylish hexagon tiles.
This project involved adding a new master bathroom to the existing house. The shower features sleek white subway tiles complemented by striking black fixtures and shower door hardware. The bathroom floor is adorned with elegant white marble tiles, providing a seamless and luxurious finish. A white shaker vanity topped with a white marble countertop completes the space, creating a clean and sophisticated look.
Experience a whole new level of indoor-outdoor living with the Torres Residence Backyard Remodel. This project highlights the addition of a kitchen sliding door, seamlessly merging your interior and exterior spaces
We remodeled the current kitchen, incorporating the addition of a new sliding door to establish a seamless indoor-outdoor living area
New pool with Baja bench and spa. New pavers, aluminum patio cover and built-in BBQ in the backyard

+537

35 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for KN Remodeling & Supplies Inc
KN Remodeling & Supplies Inc
4.8(
62
)

Serving Castaic, CA and surrounding areas

Approved

In business since 2012

Free estimates

Warranties offered

"The KN Remodeling team did an excellent job at our home completely remodeling 3 bathrooms, painting our entire home and rebuilding a huge planter outside. We trusted them in our home while we are out of town almost the entire time. We hired them back to do additional work in our home that they did quickly and expertly. The team was professional, very friendly, worked quickly, quietly, cleanly, and I would highly recommend them."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+48

Response time8 hrs
Response rate100%
8 neighbors recently requested a quote
Avatar for HIC Builders, Inc.
HIC Builders, Inc.
5.0(
12
)

Serving Castaic, CA and surrounding areas

Approved

In business since 2017

Free estimates

Warranties offered

"We hired Mike for an extensive overhaul of our master bathroom with a pressing timeline. Mike assured us they could meet the deadline, and true to their word, progress was evident almost every day. Remarkably, even with some impromptu additions to the project like a heated floor and towel rack, they seamlessly accommodated our requests and still managed to complete the project ahead of schedule. While I wasn't entirely enamored with the communication style of their design person, I later discovered that the individual is no longer with the company. This led me to believe that their departure might be attributed to a misalignment with the company's transparent approach. On the whole, I would confidently recommend their services!"
Roof & exterior paint
Working on the gas line
Artificial turf project
Roof & exterior paint
Roof & exterior paint

+53

Response time2 days
Response rate98%
23 neighbors recently requested a quote
Avatar for Universal Home Design, Inc.
Universal Home Design, Inc.
4.9(
20
)

Serving Castaic, CA and surrounding areas

Approved

In business since 2002

Free estimates

Warranties offered

"Universal Home Design Inc. is fabulous! I'm a single senior woman and I'd never had remodeling work done before. I was vey frightened of being taken advantage of by a contractor. The contractor Ouriel listened to every word I said. He guided me to get the exact results I wanted in remodeling my bathroom. He is extremely professional and informative. He estimated the job to take 3 - 4 weeks, he was right on. Everyone on the working crew spoke English, and were reliable, efficient, courteous and trustworthy. I could leave them alone in my home and feel completely at ease. Everyday before they left, they would sweep the floor and clean up their tools. Ouriel's patience and talent made this remodel go extremely smoothly. I'm completely satisfied with the results and highly recommend them. If you don't want stress or if you have a fear of price hiking in the middle of your job, make your life easier and use Universal Home Design Inc."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+80

Response time3 days
5 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for I.N.G. Construction & Inv.
I.N.G. Construction & Inv.
4.3(
110
)

Serving Castaic, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Free estimates

Emergency services offered

"If you are looking for an honest contractor that does great work, look no further than ING Construction. We hired them to build a recreation room onto our detached garage, which came out amazing. 4 years later, we had them come back and turn that rec room and part of the garage into a legal ADU (Accessory Dwelling Unit). 3 of our neighbors have now used ING Construction for their projects. I do not think that you can find a better recommendation than that."
Bathrooms In Studio City
Los Angeles, CA - Custom Home Rebuild
Mt. Washington, CA  - Complete Kitchen Remodel
Malibu - Entire House Remodel / Kitchen
Pasadena, CA / Master Bathroom Addition

+681

Response time9 hrs
Response rate93%
2 neighbors recently requested a quote
Avatar for AMERICAN PROFESSIONAL BUILDER'S INC
AMERICAN PROFESSIONAL BUILDER'S INC
5.0(
17
)

Serving Castaic, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Emergency services offered

"I was totally wrong in thinking that this company would do a good job because in reality they did something spectacular, the entire work team was very kind and attentive to our family, we are a family that does not open the door to anyone but we decided to trust American Professional Builders, Jose was very friendly and understanding with all of our needs, he always tried to adapt the work to each one's style, my children's rooms are comfortable, elegant and at the same time they can play and have fun with the design that Jose created especially for them, our yards are safe for the children and at the same time we can enjoy a weekend with the wonderful Deck with fireplace and kitchen, the pool with games that Jose recommended and that he built is beautiful and fun for the family, the type of tile he used looks luxurious and the pavers he installed with the artificial grass around it were exactly what we dreamed of, we are going to build an ADU soon and we are already working on the pl"
Finished outdoor patio remodel.
Finished outdoor patio remodel.
Finished concrete patio.
Finished outdoor canopy.
Finished outdoor patio remodel.

+39

Response time5 hrs
Response rate97%
13 neighbors recently requested a quote
Avatar for McCormick Home Builders, Inc.
McCormick Home Builders, Inc.
4.5(
28
)

Serving Castaic, CA and surrounding areas

Approved

In business since 2017

Free estimates

Customers say: True professional

"We decided to remodel our outdated bathroom, and McCormick Home Builders was a fantastic choice. Khaled and the team delivered high-quality work within the timeline and our budget. Every detail, from the tile work to the lighting, was beautifully done. They communicated well throughout, keeping us informed at every step, and the end result was truly a spa-like bathroom we can enjoy daily. We’d love to work with them again!"
.
.
.
.
.

+1

Response time6 hrs
Recommended by24%of homeowners
Avatar for Unique Home Design & Remodeling
Unique Home Design & Remodeling
4.5(
58
)

Serving Castaic, CA and surrounding areas

Approved

Super Service Award Winner

In business since 1983

Free estimates

Warranties offered

"Sol was the Unique Home Design & Remodeling project manager for the recent kitchen and bathroom renovation that we recently did and his team of skilled and hardworking did a wonderful job. We greatly recommend Unique Home Design & Remodeling and mainly Sol, The working crew and the office staff that was involved in our project and we will hire them again for any additional remodeling project in our house. Sol was the project manager on both remodeling projects (kitchen and bathroom), did a perfect designing job for the kitchen space by using most of the existing space with features that we needed and wanted for a while now. From start to end, the extra attention that Sol put to all the details of both projects was more than what we were looking for. He always gave wonderful ideas and suggestions and he made sure that we are happy with all the decisions about both renovations. We love both projects very much! The kitchen and the bathroom got a completely brand new look and they are very functional for our needs. It makes us very happy each time any of us walk into any of them!"
M
Response time1 day
Response rate96%
143 neighbors recently requested a quote
Avatar for American Home Improvement, Inc.
American Home Improvement, Inc.
4.2(
404
)

Serving Castaic, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2004

Free estimates

Warranties offered

"We?re so glad we chose American Home Improvement for our room addition, everything looks amazing even better than we expected. David was our and we love to work with him. He kept things on track, and made the whole process feel easy. We?d gladly recommend them to anyone thinking about a home upgrade."
Marble counters, and doorway
Vintage chi with marble floors
Marble bathtub and floors
Marble counter and floors meet black
Marble counter

+490

Response time7 hrs
Response rate85%
372 neighbors recently requested a quote
Home Pro Remodeling & Construction, Inc.
4.1(
31
)

Serving Castaic, CA and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"I had my garden and bathroom remodel done. Albert and Samuel were professional, friendly, and a delight to work with. They're responsive and reliable. I also like the subcontractors whom they used on my project. They kept me informed of everything and I appreciate their excellent work."
Response time5 days
Recommended by77%of homeowners
...
Showing 1-10 of 455
FAQs for addition to existing structure building service projects in Castaic, CA

You can typically raise your roof by four to eight feet, depending on your home's structure and roof design. The exact amount depends on factors like roof slope and framing support. Raising the roof creates additional interior space, enhances natural light, and increases your home's value. Consult a professional to determine the feasible height increase for your home.

Yes, you need a building permit to raise your roof. Obtaining a building permit ensures your project complies with local building codes and safety regulations. A professional contractor can assist with the permit and inspection process and ensure all legal and safety requirements are met. Your contractor will be familiar with building codes in your area, which can differ between cities or states.

While it's possible to raise a flat roof, it requires extensive structural modifications. Flat roofs lack the attic space and support structures of pitched roofs, so raising them involves significant engineering to ensure safety and durability. This process can be complex and costly, so professional assessment is essential before undertaking a project of this magnitude.

The Castaic, CA homeowners’ guide to addition to existing structure building services

From average costs to expert advice, get all the answers you need to get your job done.