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Basement waterproofing & crawl space4.9(72 Google reviews)

Alonzo Contractors Inc

Basement waterproofing & crawl space · Columbus, OH

Columbus, OH · service area(614) 849-5780alonzocontractorsinc.com
Free estimate
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About Alonzo Contractors Inc

Alonzo Contractors Inc is a basement waterproofing and crawl space company serving the Columbus area, Ohio.

On its website (alonzocontractorsinc.com) it mentions foundation waterproofing and crawl space encapsulation. The quotes below link to the page where each one appears, so you can check them.

Opening hours on Google Maps: Monday to Friday 7 am–5 pm; Saturday 7 am–12 pm; closed Sunday.

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Service-area company. Google Maps doesn't publish a street address for it; it appears in searches around Columbus. Ask where it's based and whether it covers your ZIP code.

Foundation services

What Alonzo Contractors Inc says on its website

Quoted from its website, read in October 2026.

Also typical: foundation crack repair. That's our assumption from the type of company, not a claim by the company – please confirm.

Inspections, warranty and payment

What its website says (October 2026). Ask for the warranty in writing and read what it covers before signing.

Opening hours

Monday7 am–5 pm
Tuesday7 am–5 pm
Wednesday7 am–5 pm
Thursday7 am–5 pm
Friday7 am–5 pm
Saturday7 am–12 pm
SundayClosed

As listed on Google Maps (July 2026). Call before visiting – hours change.

Alonzo Contractors Inc on the map

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Dashed pin = service area, no street address. Other pins: companies within 30 miles. Map data © OpenStreetMap contributors.

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Before you call, ask about

  • Interior drain, exterior membrane or crack injection – and why
  • Whether a battery backup sump pump is included
  • What the warranty promises: a dry basement, or only the system
  • How they'll handle structural cracks or bowing walls, if any

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Questions about this company

How do I contact Alonzo Contractors Inc?

By phone at (614) 849-5780. Through its website, alonzocontractorsinc.com.

When is Alonzo Contractors Inc open?

Opening hours on Google Maps: Monday to Friday 7 am–5 pm; Saturday 7 am–12 pm; closed Sunday.

What foundation services does Alonzo Contractors Inc offer?

On its website it mentions foundation waterproofing and crawl space encapsulation.

Does Alonzo Contractors Inc offer free inspections?

Its website mentions “Free Estimate”. Ask what the visit includes and whether you'll get the findings in writing.

How much does foundation repair cost in Ohio?

Estimated for Ohio: sealing a crack about $238–$761; repairing a settling foundation about $4,280–$19,020, mostly depending on the number of piers. Try the cost calculator and compare written quotes.

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