Mitchell & Sons Heating and Cooling

Category

HVAC

Address

109 South Madison Avenue, Ottumwa, IA 52501

Data checked

November 6, 2026 (OpenStreetMap)

Before You Hire

Facilities usually schedule HVAC contractors at least twice a year, before cooling and heating seasons. Ask:

• Do you take commercial work, and do you service buildings like ours?
• Can you send a certificate of insurance naming us as additional insured?
• Are your technicians EPA Section 608 certified to handle refrigerant?
• Do you service our equipment type and brand (rooftop units, chillers, boilers)?
• What does a service agreement include, visit by visit?

All 8 questions to ask →

Hiring Tips

• Change filters on a schedule set by your dust load, often every 1–3 months.
• Keep a list of every unit with its model, serial number and age.
• Compare repair quotes against the unit's age before replacing it.

Getting several quotes? Line them up in the quote comparison tool and check the contract checklist before you sign.