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Top-Rated Custom home builders in Affton - Updated Nov 2026

Avatar for Ethos Building Group, LLC.
Ethos Building Group, LLC.
3.0(
2
)
Find a Custom Home Builder

Serving Affton, MO and surrounding areas

Approved

Credit card accepted

Customers say: True professional

"From the beginning of my project in January 2024, I have never regretted my decision to choose Ethos Building Group LLc. Jeh Johnson and his partner Tracy Herod have worked diligently to execute the itemized proposal that began this project to rehab, restore, and rebuild my home at 607 Wilmington ave. St. Louis MO 63111. An incredible number of tradesmen and tradeswomen have done their individual tasks all on a schedule professionally overseen by Jeh. These liscensed and masters of their trades worked alongside Jeh who if necessary stepped in and aided e these individuals. His overall expertise has brought my home to this point. One must keep in mind that a burnout like my home is an unusal job for Ethos Buildig Group LLc to accept. Yet at every stage my home has been given the same careful and thorough attention as their larger jobs. And despite some push back with my insurance company every thing has proceeded smoothly and orderly manner given the inevitable supply chain delays. Jeh Johnson is an affable young man who has facilitated all phases my prject and has even taken time to educate me on all the intricacies involved in a project such as mine. I cannot think of any single word to describe my experience with Ethos Building Group LLc but the forgoing will have to suffice. Thanks you for your kind attention. Stay safe and make a point of telling those who you find dear just what they mean to you."
Builders - Garages/Barns/Sheds Project
Insurance
Clayton Basement & Addition
Bath / Walk in Shower
Egress windows

+43

Response time1 day
Recommended by50%of homeowners
Home Source Custom Homes
2.8(
5
)
Find a Custom Home Builder

Serving Affton, MO and surrounding areas

Approved

In business since 1985

Free estimates

"We hired Homesource to build a kitchen/hearth room addition onto our house. They were wonderful to deal with and we are extremely pleased with the results. Their carpenters, project managers and production crew were true professionals. We were also impressed with the expertise and professionalism of all the sub-contractors that they hired. We would highly recommend Homesource to anyone looking to build a custom home or remodel an existing home."
Response time6 days
Recommended by75%of homeowners
Avatar for Freeman Custom Builders & Handyman
Freeman Custom Builders & Handyman
3.9(
54
)
Find a Custom Home Builder

Serving Affton, MO and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"I had some loose metal that was very dangerous if it had broken off. Mr Freeman was near by and was able to come reattach the metal. It was really cold but that didn't stop him from reattaching the loose portions. I was really grateful for the emergency work."
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+7

Recommended by70%of homeowners
Good Neighbors LLC
4.3(
89
)
Find a Custom Home Builder

Serving Affton, MO and surrounding areas

In business since 1999

Free estimates

"Our kitchen was ugly and barely working.   We went to Angie's List and hired Good Neighbors, LLC for a previous job and we hired them again and they gave us an outstanding kitchen remodel.
Good Neighbors had previously done a master bath remodel for us in 2012, which we love!  So when it came time to update and remodel our outdated 30 year old kitchen, we again hired Good Neighbors to do the kitchen remodel.  
They gave us a price, they gave us a finish date and they finished within budget and they finished on time.  Impressive!
Our kitchen was a complete demolish from the ceiling to the floor.  We installed new cabinets, new appliances, new lights, granite counter tops and updated the electrical service and the plumbing.   We did a lot. 
Our kitchen, as with many older home remodels came with several surprises once the work started.   However, Good Neighbors was able to handle the required fixes flawlessly and perfectly.  Most importantly, we are thrilled with the end result.  Even the building insectors complimented their work.
One point worth mentioning, which we really appreciated, was the fact that the Good Neighbors personnel, Tom, Chris and Caleb showed up on time, worked hard all day and cleaned up every night.  They never let us down, never left us hanging nor left us a mess to clean up.
The finished kitchen is even better than we had imangined.   Good Neighbors is worth of a glowing recommendation from us and we recommend them for any interior remodel and proudly give them an A."
Recommended by94%of homeowners
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Custom Home Builders FAQs, answered by experts

Modular homes are more affordable than stick-built homes if you keep quality and square footage equal. The cost to build a home averages $323,000, while average modular home prices sit at {AvgCost}. If you’re looking for custom or luxury options, a traditional custom home costs $825,000, while a high-end modular home costs $600,000, on average.

Remodeling a house is often less expensive than building a new house. You can expect to pay an average of $100 per square foot when you are remodeling. The cost to build a house averages about $150 per square foot. When remodeling, though, some rooms cost more than $100 per square foot and some cost less. Use a home renovation cost estimator to accurately estimate your remodeling costs.

A custom home is one that you design from the ground up, allowing you to customize everything from the square footage to the interior layout to all of the materials used. A spec home is one that a builder has designed and gotten approvals for. Spec homes may give you some limited options for the layout and materials, but most of the build is pre-set. Custom homes cost more and take longer to build.

While some highly experienced homeowners can frame a house independently, it is not advisable. You will need ample carpentry experience, a team of helpers, and professionals to sign off on your work to meet local building codes. For the safest outcome, we recommend buying or building a house with the guidance of professionals.

The average cost to build a modular home is around $270,000, and most modular homes total between $180,000 and $360,000. Of course, this price varies significantly by location, and the price tends to follow the cost of living in the area. There are quite a few other factors at play that can affect your pricing, including the following:

  • Number of bedrooms and bathrooms

  • Site preparation, including land clearing and leveling

  • Type of foundation

  • Utility connections

  • Cost of building permits

The Affton, MO homeowners’ guide to custom home building

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