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    Average homeowner rating
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    Verified custom home building reviews

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
Avatar for Acasta Systems
Acasta Systems
5.0(
9
)
Find a Custom Home Builder

Serving Affton, MO and surrounding areas

In business since 2010

Free estimates

Credit card accepted

"The guys listened to my requests and figured out how to make what I wanted happen. They are professional, conscientious and just really great guys. Plan on using them again the next time I want to make revisions at my home."
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+8

Recommended by100%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

Framing is often the most expensive phase of building a house because it’s time-consuming and requires a lot of materials. It costs between $20,000 and $50,000 on average, depending on materials and labor costs. Before construction begins, it’s possible that purchasing land is the priciest step in the process. Some plots of land sell for $3,000, while others cost upwards of $150,000.

The most significant expense when building a barndominium is constructing the metal shell, which includes the roof, doors, and windows. Additional exterior components impacting the overall cost include metal siding and the concrete foundation.

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

It usually takes around four to six months to build and install a modular home, although your timeline could go up to around eight months if there are delays in the manufacturing or permitting process. Heavy site preparation and foundation pouring can extend that timeline if you need them, as can customizations you want for your modular home. Your modular home company should be able to provide an estimate for the construction timeline before you sign any contracts or agree to any work.

A construction manager is particularly useful in the case of a large-scale build with custom design elements, so it’s usually worth it to hire one. They can help manage your budget, maintain quality control, oversee timelines, and navigate unexpected hurdles. While construction managers are pricey, they can actually save money in the long run by identifying cost-saving opportunities and ensuring the project stays within budget.

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.