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Verified Reviews for Architectural Service pros in O Fallon, IL

*The Angi rating for Architectural Service companies in O Fallon, IL 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 O Fallon, IL 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 November 17, 2025

Find Architects in O Fallon

Avatar for Evolution Drafting
Evolution Drafting
3.1(
73
)

Serving O Fallon, IL and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Excellent Experience – Highly Recommend company. I had a great experience working with this drafting company. The team was professional, responsive, and easy to work with. A special shoutout to Collin Kelsch and Rosa Chatwin for their outstanding cooperation and attention to detail throughout the project."
Zeal Floor Plan
Charcoal
Palm Floor Plan
Charcoal Floor 2
Charcoal Floor 1

+23

Response time1 day
Response rate100%
70 neighbors recently requested a quote
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Avatar for Alliance Contracting Solutions
Alliance Contracting Solutions
4.4(
38
)

Serving O Fallon, IL and surrounding areas

In business since 1989

Free estimates

Emergency services offered

"With a slight delay due to COVID, the work was very well done. Plaster repairs were completed, all furniture was moved away from the walls, the floors were covered. The colors were exactly as I requested, including the crown molding. The work was completed in the time quoted and for the estimated cost."
Recommended by83%of homeowners
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Yung Architect
New to Angi

Serving O Fallon, IL and surrounding areas

In business since 1984

Ed Yung Architect achieves your vision by focusing on elements most important to you. Elements such as creative input on design, energy efficiency, and space planning. We have been the leading design firm in the area for over 20 years. We are committed to your complete satisfaction in design. Listening first to your needs, then creating a design that will meet your needs and stay within budget is key factors to your satisfaction.

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Architects questions, answered by experts

Cathedral ceilings make a statement in your home, but at the cost of your attic space. Normal attics are wide open, which allows warm air to move around and exit your home. Because of this, cathedral ceilings make your home less energy efficient and put your ceiling at risk of venting issues if you’re not careful. They also reduce your attic storage space, potentially cause an echo, and even make it harder to change a light bulb.

While you will always work with a team of professionals at some point during your home build, homeowners with experience can take on some part of the process. Manage the initial brainstorm, brief writeup, and floor layout phase with minimal assistance before contacting a general contractor. And while you can purchase stock blueprints for some home designs, it's always best to speak with professionals when choosing one ideal for your property.

Greek Revival and Federal architecture are quite similar in that they focus on symmetry and a blend of utilitarianism and opulence, but they differ in a few key areas. First, Federal architecture tends to include a brick facade, whereas Greek Revival homes more often have stucco siding, much like you’d find in Mediterranean houses. Greek Revival homes also tend to be a bit more ornate, with columns as decor, and more decorative and formal porticos.

The process typically takes 2-6 weeks, depending on the project size and level of customization.

Balancing aesthetics with functionality amidst space planning is important. To do so, you could consider consulting both an interior designer and an architect to fulfill both these needs. Or you can tackle it on your own by prioritizing personal touches amidst space planning that add to the look but don't take away from the livability of the space.

The O Fallon, IL 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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