Top-rated addition to existing structure builders.

Get matched with top addition to existing structure builders in Rancho Santa Margarita, 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 Rancho Santa Margarita

Avatar for Ace Restoration & Construction, Inc.
Ace Restoration & Construction, Inc.
4.9(
13
)
Addition to Existing Structure - Build

Serving Rancho Santa Margarita, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Free estimates

Warranties offered

"So grateful to Cheree for making my vision come to life! Started with only our kitchen but was able to make room in our budget to add two bathroom remodels! She was incredibly knowledgeable, professional, and dedicated to making everything I wanted in our space happen. She stayed in constant communication throughout the process, her crews were clean and detailed, and I couldn’t be happier with our experience. If I could leave 100/10 I would. Thanks Ace Construction for finally giving me my dream kitchen!!"
Epoxy Concrete Floor
Whole House Remodel
Pool Restoration
Kitchen Remodel
Kitchen & Bathroom Remodel

+133

Response time2 days
Response rate100%
2 neighbors recently requested a quote
Avatar for McCormick Home Builders, Inc.
McCormick Home Builders, Inc.
4.7(
42
)
Addition to Existing Structure - Build

Serving Rancho Santa Margarita, CA and surrounding areas

Approved

In business since 2017

Free estimates

Customers say: True professional

"We found McCormick home builders through Angie’s list. They were not one of our original contacts, but they contacted us and came out to give us a quote. Matteo was extremely helpful, informative, honest, and gave us reasonable realistic prices, and did not try to inflate the prices or pressure us in anyway. We felt very comfortable with him immediately. We felt like he was a member of the family that we could just talk to and ask questions he was very personable. He gave us his contact number in case we had other questions and he was always available when we needed him for any type of questions or concerns. Mateo‘s team did a beautiful job. They were fast. They were efficient. They cleaned up beautifully. They did a wonderful job. They were very considerate of our time our needs and our neighbors. They were an absolute pleasure to work with. I would highly recommend Matteo from McCormick home builders for any home building projects, and we will be calling him again in the future!"
.
.
.
.
.

+1

Response time6 hrs
Recommended by17%of homeowners
Avatar for Coastal Kitchens & Baths Inc
Coastal Kitchens & Baths Inc
4.6(
73
)
Addition to Existing Structure - Build

Serving Rancho Santa Margarita, CA and surrounding areas

Approved

In business since 1993

Free estimates

Warranties offered

"It’s hard to find an expert contractor that is also honest. John ensures his team produces high quality work. He’s there everyday to make sure it’s done right. The job was done expeditiously despite that his team was in high demand. It was much less stressful for us with his process to get everything delivered before the actual construction began. We love our new area so much that we hired him for our two bathrooms upstairs next."
SLAB MARBLE
LEVIN
EVANS
EVANS
Before

+7

Recommended by98%of homeowners
Avatar for Laguna Bay Developing
Laguna Bay Developing
4.7(
13
)
Addition to Existing Structure - Build

Serving Rancho Santa Margarita, CA and surrounding areas

Approved

Super Service Award Winner

Emergency services offered

Warranties offered

Customers say: True professional

"David and Team are amazing. They constructed a 500 sq ft master suite addition for us. The craftsmanship was excellent, workers were kind and respectful. David is extremely communicative, transparent, and had staff working every day (which does not always happen with contractors as sometimes they just don't show up). Another big plus was David did not nickel and dime for everything, including small adjustments to the plan, making the process much less stressful. We really appreciated the relationship and could not be happier with the final product. David is definitely now our "go-to" for any housing projects we need done."
Remodeling - Kitchen & Bathroom Project
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+287

Response time9 hrs
Response rate100%
17 neighbors recently requested a quote
Avatar for ProHome Remodels
ProHome Remodels
4.9(
12
)
Addition to Existing Structure - Build

Serving Rancho Santa Margarita, CA and surrounding areas

Approved

In business since 2024

Free estimates

Warranties offered

"Benji and the ProHome Remodels team completed a room addition for us and did a great job. Benji did a great job managing the project and communicating updates clearly. We're very happy with the quality of the work and the new space looks like it was always part of the original house. We really appreciated Benji’s professionalism and attention to detail, we highly recommend him and would hire him again."
Bathroom Remodel
Jackson Project
Jackson Project
Jackson Project
Jackson Project

+1

13 neighbors recently requested a quote
Avatar for McGee Construction
McGee Construction
4.6(
14
)
Addition to Existing Structure - Build

Serving Rancho Santa Margarita, CA and surrounding areas

Approved

Super Service Award Winner

In business since 1990

Free estimates

Offers commercial services

"I needed two exterior door jambs repaired on a historical home in Santa Ana. The bottom of the jambs, where they met the thresholds, were rotted and decayed. Additionally, there was possible damage to the bottom plate, trimmers, and king studs. I contacted McGee construction for the estimate. The estimate was more than fair so I accepted. Eric, the finish carpenter, came out and completed the repairs. He draped the room with plastic to protect the furniture, floors, and rest of the house. The repairs took three days and look fantastic. He was able to match up the new jambs to the existing arch doorways and thresholds. He recreated new casings to match the old door casings. Eric rehung the doors and the doors now open and close beautifully. Additionally, the new paint and stain matches the original. Good communication with the company, I was kept informed of the repairs, and they cleaned the job site everyday. i would hire them again without a doubt."
Shower Remodel - Long Beach
Heather Home Remodel
Heather Remodel
Rolling Green Remodel
Zucker Home remodel

+61

10 neighbors recently requested a quote
Recommended by69%of homeowners
Avatar for Pegasus Remodeling, Inc.
Pegasus Remodeling, Inc.
4.8(
16
)
Addition to Existing Structure - Build

Serving Rancho Santa Margarita, CA and surrounding areas

Approved

In business since 2010

Free estimates

Warranties offered

"We thought long and hard before embarking on our remodeling project. We wanted to make sure that the contractor we chose would be aligned with our desires from both an esthetic and quality perspective. We spent considerable time talking with both Natalie and Mike before moving forward with our room addition. Their communication, professionalism and expertise really supported us in refining our vision and establishing a clear pathway forward. The team at Pegasus Remodeling consistently exhibited these same qualities through every phase of our project and ensured the project was not only a success, but on schedule and within budget. Working with Pegasus Remodeling, there were no surprises! The team was super communicative throughout the project. We are very, very happy with the outcome! We've turned essentially dead unused space into a beautiful new part of our home and couldn't have done this without the design input and construction expertise from the team at Pegasus Remodeling."
Laguna Beach, Coastal
Laguna Beach, Coastal
Turtle Rock
Turtle Rock
Turtle Rock

+18

Response time1 day
Response rate94%
Recommended by66%of homeowners
Home Pro Remodeling & Construction, Inc.
4.1(
31
)
Addition to Existing Structure - Build

Serving Rancho Santa Margarita, CA and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"Our roof was in bad shape and we needed to have it replaced. I had gotten estimates and decided to go with Home Pro Remodeling. Emil and Brian were our contact people for the project. Emil was very professional and paid attention to our concerns. He worked with us through the entire project to our complete satisfaction. Brian is extremely courteous and helpful as well! The project went very smoothly, was completed before the initial project end date, and the results were beyond our expectations. The job turned our beautifully! Our new roof looks FANTASTIC! Our neighbors have commented to us how great it looks. We are very pleased with our experience with Home Pro Remodeling and would definitely recommend them."
Response time5 days
Recommended by77%of homeowners
...
Showing 1-10 of 514
FAQs for addition to existing structure building service projects in Rancho Santa Margarita, 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 Rancho Santa Margarita, 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.