Callahan Inspection Services LLC

What They Do

Mold Testing

• 11th month warranty inspections
• Annual maintenance checkup
• Indoor allergen sampling
• Manufactured home inspections
• Mold sampling
• Multi-unit inspections
• New construction inspections
• Pre-listing inspections
• Rental property inspections
• Air Conditioning
• Air quality testing
• Commercial Building Inspections
• Commercial Properties
• Detailed Inspection Report
• Final Inspection
• General Liability Insurance
• Gutters And Downspouts
• Heating And Cooling Systems
• Home inspection
• Inspection Reporting Software
• Inspections Protect
• Radon Testing
• Schedule Inspection
• Structure And Foundation
• Thorough Inspections
• Walkthrough inspection
• Water quality testing
• Wood destroying organisms inspection

Compare Them With Others in Pasadena

• All 6 mold inspection and testing companies in Pasadena

In Their Own Words

Home inspection

Written by the business on its public profile. We have not verified these claims.

Before You Call Callahan Inspection Services LLC

1. Do you also do remediation? If so, who checks your work?
2. How many air samples will you take, and will you take an outdoor control sample?

Ask for a Maryland Home Improvement Commission license number and look it up with the state. Also ask for proof of insurance, industry certification for the restoration crew and lead safe certification for any pre-1978 home.

They list no storefront. Ask where the business is based and whether the crew is their own.

How Their Reviews Break Down

Counts from public listings as of September 23, 2026. A handful of reviews says less than a few hundred.

Read This While You Wait

• Call a proMold Testing, When It Is Worth It and How to Read a Lab ReportWhen a mold test is worth paying for, which kind to ask for, why store kits mislead, and how to read spore counts, outdoor controls and a lab report yourself.
• DIY with careAttic Mold on Roof Sheathing, Causes and FixesWhy mold grows on attic roof sheathing, how to find the cause, the fixes that stop it for good, and how to tell a cosmetic stain from a roof that needs work.