Get matched with top custom home builders in Westminster, CA

So Cal Builders & Design have been helping the homes throughout California look perfect one nail and brick at a time! With the best prices and highest standard of service, we can deliver the kitchen or bathroom of your dreams on time and on budget! Our staff of trained technicians will build your addition or remodel to your specifications; using only the finest quality materials and the most up-to-date building procedures. We also have in house masonry service as well as perform a number of other services such as plumbing, lighting, painting, patios, and much more. Because we do it all ourselves, we eliminate miscommunication, stress and down time. We don’t use outside contractors or fancy gimmicks to get our customers. We combine new and modern building practices with tried and true hard work to deliver a work of art every time and that is why our customers make us #1. Request Your Free Estimate Voice Star: (888) 284-9122.

"Very good company . I am very satisfied with their professionalism . Highly recommended this company"

Leta W on December 2025

"Very good company . I am very satisfied with their professionalism . Highly recommended this company"

Leta W on December 2025

New Beginning Engineering

New Beginning Engineering

Recommended by 100% of Angi customers

21 years of experience

We are a full service Architectural and Structural Engineering family-owned company and believe that quality, honesty, and fair pricing are the cornerstones to a trusting working relationship between home owner and engineer. Architectural and Structural Engineering Solutions For: --ADU's --New Home Design & Construction --2nd Floor Additions --Decks and Patio Covers --Retaining Walls and Basements --Home Design on Hillsides --All residential and commercial needs for Architectural and Structural Engineering We are a Christian based engineering company and conduct our business with the utmost ethics. We operate our business on a lump price fee. With this price, you don’t end up paying for change orders or comments back from the city. Our lump sum fee includes getting you all the way to permit. We will provide you with clean, clear, and professional looking architectural and structural engineering plans and calculations for both your contractor and for submission to your city agency. We also serve many realtors as well providing structural engineering assessment for properties either during a pre-approval process or during their contingency period to ensure the home being purchased is structurally adequate with no major issues. We chose to work in this industry because we want our customers to obtain their dreams. Your home is your sanctuary. Make your home the way you want it and work with a company that values trust, integrity, and quality.

"GS ArcDesign has had the privilege of working with New Beginning Engineering for many years, successfully completing over 15 projects together, with more projects currently in progress. Throughout this collaboration, I have consistently experienced the highest level of professionalism, reliability, and technical expertise from their team. Their services—including structural design, structural calculations, energy compliance (Title-24), and MEP engineering—have been integral to both residential and commercial projects, particularly those involving legalization and permitting. Each project has been handled with thoroughness, precision, and a commitment to excellence. As an architectural firm, we rely heavily on engineering partners who are not only skilled but also dependable and trustworthy. New Beginning Engineering has consistently met and exceeded those expectations, making them one of our most valued collaborators. I hold a very positive impression of New Beginning Engineering and confidently recommend their services to anyone seeking competent, reliable, and professional engineering support."

Sisitha E on August 2025

"GS ArcDesign has had the privilege of working with New Beginning Engineering for many years, successfully completing over 15 projects together, with more projects currently in progress. Throughout this collaboration, I have consistently experienced the highest level of professionalism, reliability, and technical expertise from their team. Their services—including structural design, structural calculations, energy compliance (Title-24), and MEP engineering—have been integral to both residential and commercial projects, particularly those involving legalization and permitting. Each project has been handled with thoroughness, precision, and a commitment to excellence. As an architectural firm, we rely heavily on engineering partners who are not only skilled but also dependable and trustworthy. New Beginning Engineering has consistently met and exceeded those expectations, making them one of our most valued collaborators. I hold a very positive impression of New Beginning Engineering and confidently recommend their services to anyone seeking competent, reliable, and professional engineering support."

Sisitha E on August 2025

Westech Construction Engineering

Westech Construction Engineering

5 years of experience

We are a locally owned and operated company with over 16 years of industry experience. We specialize in Remodeling and Additions, but also offer a wide range of expertise for a variety of other Home Improvement projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction! We are a bilingual company, and are happy to serve both our English and Spanish Speaking communities!

"Excellent service. Very professional and honest. Highly recommended!"

Sam A on October 2021

"Excellent service. Very professional and honest. Highly recommended!"

Sam A on October 2021

Mark Lewis & Son Construction

4.30(

Mark Lewis & Son Construction

4.30(

Customers say: Quality work

42 years of experience

We are a leader in providing value-added construction services through Long Beach, Orange & So. Los Angeles Counties for over 30 years. We have a full time highly trained crew and our subcontractors are skilled, licensed tradesmen. Our pledge is to achieve a high level of satisfaction and to establish lasting relationships with our customers by providing quality craftsmanship, attention to detail, and earning your trust through exceptional performance throughout the construction process…. This is the cornerstone of all of our projects.

"Good customer service and quality work."

Tyanne P on January 2024

"Good customer service and quality work."

Tyanne P on January 2024

McCormick Home Builders, Inc.

4.31(

McCormick Home Builders, Inc.

4.31(

Customers say: True professional

9 years of experience

MCCORMICK HOME BUILDERS INC We're a locally owned and operated company that values honesty and integrity and treats your home or business as if it were our own. We are experts in all aspects of roofing projects and our services are customizable to each individual project. We specialize in both installations and replacements. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

"Leo was very helpful and quick to respond. We’re happy with how our 2 bathrooms turned out. Project was completed within the time promised. Our only complaint is that the workers did not clean up very well. But overall, we’re satisfied and we’ll use them again. "

Yolanda F on October 2025

"Leo was very helpful and quick to respond. We’re happy with how our 2 bathrooms turned out. Project was completed within the time promised. Our only complaint is that the workers did not clean up very well. But overall, we’re satisfied and we’ll use them again. "

Yolanda F on October 2025

Moonshot Consultancy LLC

Moonshot Consultancy LLC

Recommended by 100% of Angi customers

5 years of experience

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade, combined with ability, is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business

"Kevin is very good! Permits were approved with ease in a tough City to obtain permits."

Abdulla M on March 2024

"Kevin is very good! Permits were approved with ease in a tough City to obtain permits."

Abdulla M on March 2024

Uni Construction

Uni Construction

6 years of experience

ADU design and construction specialist. ADU | Complete design from concept to city permit | Structural design and engineering with license engineer stamp | Mechanical, Electrical, and Plumbing design and engineering with license engineer stamp | High resolution rendering | Drafting service | Design service for home owners, other design companies, and contractors.

"honest, fast and reliable stronly recommend"

sung k on September 2020

"honest, fast and reliable stronly recommend"

sung k on September 2020

YNG Architects, Inc.

4.40(

YNG Architects, Inc.

4.40(

Customers say: Terrific value

21 years of experience

YNG Architects, has worked with the same values with which we were founded; which continue to drive us today: A deep respect for the human spirit of creativity, collaboration, and perseverance. As Architects, we marvel at the uniqueness of the places and environments that we have been privileged to design and shape. And we value the dialogue with the people that we engage with, enabling the process of design to shape an idea into a finished product. YNG Architects, Inc., is a full-service design-build company offering architectural design, general contracting, and construction management to commercial and residential clients. We hold over 20 years of commercial & residential building design experience to date. Locally owned & owner operated, YNG Architects, Inc. serves the greater Southern California area, including Orange County, San Diego County, as well as Los Angeles County.

"My wife and I purchased a home built in the ‘70s that was in good condition but in desperate need of a complete remodel. We had a clean, modern style in mind for our growing family and needed an architect to help us turn it into an actual design. That’s where YNG Architects came into play. We selected Yenny Ng and his team for design after interviewing several other firms because during the walk-through (a) he quickly played off and expanded upon our ideas, (b) provided pragmatic insight into the implications to build and construction, and most importantly, (c) had a gentle but confident manner that matched well with our working style. We were not disappointed. Over a period of several months we went through a systematic design process. Yenny and his team listened to our design preferences and took cues from example photos of design elements we admired. He lent his expert opinion and personal perspectives to balance pragmatic build versus splurging where we wanted to splurge (bi-fold doors between the indoor and outdoor space, yay!). He and his team worked well offline where we often exchanged and updated designs by exchanging emails and annotated PDF files—this was very productive as my wife and I both have demanding careers. He and his team also helped us through the city’s permitting process to get the requirements and details done; they were thoughtful and swift in responding to the city’s requests. There were no surprises with the design fees. In the end, we have a beautiful modern and functional design that fits in well with the neighborhood. Over 65% of the existing home will be remodeled and an additional 30% new living space will be added. My wife and I were very pleased with the outcome and even more excited to see this design come to life for our family. We even have a Phase II project lined up with Yenny and his team to build out the outdoor living space. We would gladly recommend YNG Architects to our friends and family. Now, this also means the construction project will be large and complex and require an experienced general contractor. We did interview other builders but chose Yenny (via YNG Construction) for similar reasons as the design—experience, pragmatism, and working style. We look forward to this next phase of our home remodel."

Ray C on April 2020

"My wife and I purchased a home built in the ‘70s that was in good condition but in desperate need of a complete remodel. We had a clean, modern style in mind for our growing family and needed an architect to help us turn it into an actual design. That’s where YNG Architects came into play. We selected Yenny Ng and his team for design after interviewing several other firms because during the walk-through (a) he quickly played off and expanded upon our ideas, (b) provided pragmatic insight into the implications to build and construction, and most importantly, (c) had a gentle but confident manner that matched well with our working style. We were not disappointed. Over a period of several months we went through a systematic design process. Yenny and his team listened to our design preferences and took cues from example photos of design elements we admired. He lent his expert opinion and personal perspectives to balance pragmatic build versus splurging where we wanted to splurge (bi-fold doors between the indoor and outdoor space, yay!). He and his team worked well offline where we often exchanged and updated designs by exchanging emails and annotated PDF files—this was very productive as my wife and I both have demanding careers. He and his team also helped us through the city’s permitting process to get the requirements and details done; they were thoughtful and swift in responding to the city’s requests. There were no surprises with the design fees. In the end, we have a beautiful modern and functional design that fits in well with the neighborhood. Over 65% of the existing home will be remodeled and an additional 30% new living space will be added. My wife and I were very pleased with the outcome and even more excited to see this design come to life for our family. We even have a Phase II project lined up with Yenny and his team to build out the outdoor living space. We would gladly recommend YNG Architects to our friends and family. Now, this also means the construction project will be large and complex and require an experienced general contractor. We did interview other builders but chose Yenny (via YNG Construction) for similar reasons as the design—experience, pragmatism, and working style. We look forward to this next phase of our home remodel."

Ray C on April 2020

OZ-ARI Development Group

OZ-ARI Development Group

4 years of experience

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

"We love our finished garage!,,"

Kathy P on December 2025

"We love our finished garage!,,"

Kathy P on December 2025

Nunez Architects

4.88(

Nunez Architects

4.88(