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Verified Reviews for Architectural Service pros in Diamond Bar, CA
*The Angi rating for Architectural Service companies in Diamond Bar, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Architectural Service needs.
*The HomeAdvisor rating for Architectural Service companies in Diamond Bar, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Architectural Service needs.
Last update on December 13, 2025
Find Architects in Diamond Bar

So Cal Builders & Design Inc
So Cal Builders & Design Inc
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
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

Sentri Homes
Sentri Homes
Sentri Homes is a full-service contractor delivering high-end home additions, whole-home remodels, new custom builds, luxury kitchens, structural framing, roof replacements, and every major renovation. We assign a dedicated project manager to every job, deliver meticulous craftsmanship with clear communication, and back our work with an industry-leading warranty to ensure complete peace of mind on your largest investments. Our in-house team of licensed builders and master craftsmen consistently earns 5-star reviews by turning big visions into stunning, high-value homes—when you need one trusted partner who truly does it all, we’re the proven choice.
Sentri Homes is a full-service contractor delivering high-end home additions, whole-home remodels, new custom builds, luxury kitchens, structural framing, roof replacements, and every major renovation. We assign a dedicated project manager to every job, deliver meticulous craftsmanship with clear communication, and back our work with an industry-leading warranty to ensure complete peace of mind on your largest investments. Our in-house team of licensed builders and master craftsmen consistently earns 5-star reviews by turning big visions into stunning, high-value homes—when you need one trusted partner who truly does it all, we’re the proven choice.

RCS Engineering Services
RCS Engineering Services
Our firm provides structural engineering support for all phases in the design and construction process. Our primary function is to create structural plan packages for submission to the governing authority. We are also available to conduct preliminary field visits and structural observations during construction. In whichever service you need, we pride ourselves in carrying out the job professionally, quickly, and for an affordable price.
"I searched many and started off with others and nobody came close in handling what we needed. I found Richard, he came in and took care of it all; it was completed in a timely manner with his accurate thinking. He definitely thought ahead and it saved me a lot of time, grief and money. He got ahead of any issues and resolved potential problems that could arise. He knew exactly what the city would require and did what needed to be done which saved us an untold amount of time and money. I did not know him from Adam, he works at a very different level of ability and knowledge. His pricing for me was the best! He is a gem, get him if you can!"
Constantine P on January 2020
Our firm provides structural engineering support for all phases in the design and construction process. Our primary function is to create structural plan packages for submission to the governing authority. We are also available to conduct preliminary field visits and structural observations during construction. In whichever service you need, we pride ourselves in carrying out the job professionally, quickly, and for an affordable price.
"I searched many and started off with others and nobody came close in handling what we needed. I found Richard, he came in and took care of it all; it was completed in a timely manner with his accurate thinking. He definitely thought ahead and it saved me a lot of time, grief and money. He got ahead of any issues and resolved potential problems that could arise. He knew exactly what the city would require and did what needed to be done which saved us an untold amount of time and money. I did not know him from Adam, he works at a very different level of ability and knowledge. His pricing for me was the best! He is a gem, get him if you can!"
Constantine P on January 2020
Envision Architecture
Envision Architecture
Envision is a full-service architecture and interiors firm specializing in innovative design and client service. Our clients are linked by their desire to create imaginative spaces that improve the lives of the people that inhabit them. We build representing that reflect their core values. We work closely with our clients to gain an understanding of their culture and business operations. We view this as essential to the process of designing effective space. We believe in high performance sustainable design that provides long-term value.
Envision is a full-service architecture and interiors firm specializing in innovative design and client service. Our clients are linked by their desire to create imaginative spaces that improve the lives of the people that inhabit them. We build representing that reflect their core values. We work closely with our clients to gain an understanding of their culture and business operations. We view this as essential to the process of designing effective space. We believe in high performance sustainable design that provides long-term value.

WILLIAM FISHER ARCHITECTURE INC.
WILLIAM FISHER ARCHITECTURE INC.
With 60 years experience, we create buildings of all types throughout California and the West. Although we specialize in new mid-century modern homes and businesses, we can work in any style. We have an office space in both Santa Cruz and Los Angeles. Please VISIT OUR WEB SITE at www.modern-architecture.com or CALL BILL at 831-246-0117.
"They were so helpful, knowledgeable, and accommodating. I made the process so much more enjoyable. And I look forward to working with them on future projects."
Laurel B on May 2020
With 60 years experience, we create buildings of all types throughout California and the West. Although we specialize in new mid-century modern homes and businesses, we can work in any style. We have an office space in both Santa Cruz and Los Angeles. Please VISIT OUR WEB SITE at www.modern-architecture.com or CALL BILL at 831-246-0117.
"They were so helpful, knowledgeable, and accommodating. I made the process so much more enjoyable. And I look forward to working with them on future projects."
Laurel B on May 2020

ESL Designs
ESL Designs
15 years of experience in the industry and with the right mixture of name brand products, excellent workmanship, and superior customer service is what allows us to provide our customers with the second-to-none ESL DESIGNS they deserve. ESL DESIGNS’s mission is to lead the residential home improvement industry by providing our customers with superior ESL DESIGNS work, top-notch workmanship, and excellent customer service – all at affordable prices!
"This project is on-going."
Dennis V on October 2022
15 years of experience in the industry and with the right mixture of name brand products, excellent workmanship, and superior customer service is what allows us to provide our customers with the second-to-none ESL DESIGNS they deserve. ESL DESIGNS’s mission is to lead the residential home improvement industry by providing our customers with superior ESL DESIGNS work, top-notch workmanship, and excellent customer service – all at affordable prices!
"This project is on-going."
Dennis V on October 2022

Uni Construction
Uni Construction
We provide complete design, drafting and rendering service. We can take project at any phases all the way to city permit. 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
We provide complete design, drafting and rendering service. We can take project at any phases all the way to city permit. 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

Left Coast Blueprints, Llc
Left Coast Blueprints, Llc
Drafting and Engineering. We will provide a complete set of architectural and structural plans to submit to building departments to obtain permits for your project. Custom Homes Room Additions Remodels Fire Damages Water Damages Spec Homes
"Excellent service. He is very knowledgeable and help me out with ideas that I didn't know about and if there is problem he just want's me to call him and he'll fix it."
Steve B on January 2022
Drafting and Engineering. We will provide a complete set of architectural and structural plans to submit to building departments to obtain permits for your project. Custom Homes Room Additions Remodels Fire Damages Water Damages Spec Homes
"Excellent service. He is very knowledgeable and help me out with ideas that I didn't know about and if there is problem he just want's me to call him and he'll fix it."
Steve B on January 2022

BLD Inc.
BLD Inc.
We are a team of interdisciplinary designers and architects. We focus on creating innovative designs that blend architecture, interior design, art, and technology to deliver spot-on solutions for our clients while ensuring: Client Expectations, Thoughtful Design, Budget Adherence, and Time Sensitivity
We are a team of interdisciplinary designers and architects. We focus on creating innovative designs that blend architecture, interior design, art, and technology to deliver spot-on solutions for our clients while ensuring: Client Expectations, Thoughtful Design, Budget Adherence, and Time Sensitivity

Skyline Konstruction
Skyline Konstruction
At Skyline Konstruction we have taken "CON" out of construction! We are a family owned and operated company. We take great pride in our work, expertise, quality, and customer service that we provide to meet every home owner’s needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of every project. We take every project personal. Our reputation is based on service, safety and quality, regardless of how large or small the job is. Here at Skyline Konstruction anything is posible!. We are looking forward to working with you!
"Juan and his crew were very professional and did excellent work!"
Todd P on June 2024
At Skyline Konstruction we have taken "CON" out of construction! We are a family owned and operated company. We take great pride in our work, expertise, quality, and customer service that we provide to meet every home owner’s needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of every project. We take every project personal. Our reputation is based on service, safety and quality, regardless of how large or small the job is. Here at Skyline Konstruction anything is posible!. We are looking forward to working with you!
"Juan and his crew were very professional and did excellent work!"
Todd P on June 2024
FAQs for architectural service projects in Diamond Bar, CA
While you might think that architects only draw blueprints for buildings, they are much more involved in the overall construction process than you might realize. While they aren’t the ones swinging the hammers, architects do the following:
Communicate with the homeowner on the project request, including assistance when exact plans aren’t known
Develop computer-aided models and blueprints of the requested design
Ensure that the design incorporates form, function, and safety features
Provide the contractor with the agreed-upon design
Supervise the general contractor and any subcontractors throughout the project
Communicate any needed changes to the project with the homeowner and draw new plans accordingly
Before settling on and hiring an architect, it’s beneficial to you as a homeowner to ask some questions to familiarize yourself with their work. After all, you wouldn’t want to spend time and resources on a professional that doesn’t specialize in exactly what you want in a house. Some questions to ask your architect include:
How do you charge for services? Is it on an hourly basis, based on square footage, or based on project size?
How do we work together to stay on budget for this project?
Do you anticipate any future challenges with this project? How are these communicated?
What is your project management style? If you are not handling the day-to-day details, who is my point of contact?
Can I see previous similar projects that you’ve completed?
Do you have any specialty experience, like working on historic homes or using sustainable building materials?
The average cost to hire an architect for your home project ranges between $2,200 and $10,500. However, depending on location and project type, you might end up paying as little as $600 or as much as $45,000 or more. For example, the average cost of hiring an architect in North Carolina is between $1,800 and $2,000, but in California, that price tag jumps to $3,600 to $15,200.
The price you pay for your architect also depends on their experience level. For example, a principal architect, the firm's owner, typically charges $150 to $250 per hour. However, an intern architect with three to five years of experience usually only charges $45 per hour.
After you’ve spoken with your contractor and agreed on a project, they’ll draw up blueprints, or plans, that the construction crew will use. The blueprint process can take between four and six months to complete. While this can seem like a long time, remember that the architect must communicate with your municipality to determine codes, communicate with you as the homeowner with any changes or adjustments, and coordinate with the construction crew.
If you simply remodel your home or add an addition, the time to draw up the plans will be shorter since fewer permits and surveys are required. Even still, it’s best to plan for a few months for the architect to complete this part of the project.
Knowing if you need an architect for your project can be tricky, especially if you've never worked with one before. In general, small remodeling projects like replacing fixtures typically don't require the expertise of an architect. However, larger projects, like moving walls or adding an addition to your home, should include an architect to ensure the project is structurally sound.
The Diamond Bar, CA homeowners’ guide to architectural services
From average costs to expert advice, get all the answers you need to get your job done.
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