Schedule at least twice a year, before cooling and heating seasons

HVAC Near You

Heating, ventilation, air conditioning and refrigeration installers and service companies, including rooftop units and service agreements. 3,143 listings in 52 states and territories.

How Often Should a Facility Use HVAC Contractors?

Facilities usually schedule HVAC contractors at least twice a year, before cooling and heating seasons. Your local code, insurer and equipment manuals can require more. We list 3,143 HVAC contractors in 52 states and territories and territories, most in Arizona, California, Texas. Before hiring, compare the total price, what is included, and the contract terms.

Updated November 6, 2026 · Source: OpenStreetMap listings (refreshed November 6, 2026); maintenance.broker planning guide.

Illustration: Heating, ventilation, air conditioning and refrigeration installers and service companies, including rooftop units and service agreements.

Top Questions to Ask

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

See all 8 questions and tips →

Good to Know

  • 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.
StateListings
Arizona218
California215
Texas206
Pennsylvania184
Florida137
Washington125
Michigan124
Ohio124
New York113
North Carolina111
Virginia109
Colorado106
New Jersey99
Illinois95
Georgia94
Maryland71
Minnesota70
South Carolina68
Wisconsin68
Massachusetts66
Idaho53
Montana51
Indiana50
Oregon50
Missouri42
Tennessee42
Iowa40
Oklahoma37
Louisiana34
Connecticut33
Alabama31
Kansas28
Utah28
Arkansas23
New Hampshire23
Kentucky21
New Mexico19
West Virginia18
Mississippi16
South Dakota15
Nevada14
Maine13
Nebraska11
Wyoming11
Delaware8
Vermont7
North Dakota5
Rhode Island5
Alaska4
District of Columbia3
Puerto Rico3
Hawaii2

Questions Facility Managers Ask

How often should a facility use HVAC contractors?

Facilities usually schedule HVAC contractors at least twice a year, before cooling and heating seasons. Your local code, insurer and equipment manuals can require more. Compare the scope, total price, response times and contract terms before hiring.

What should you ask a HVAC contractor before hiring?

Start with: 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. Our full list has 8 questions, and the quote comparison tool lets you line up the answers.

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Featured From the Map

Listings with the most contact details. Not paid placements.

Moore Heating

1801 East Dowling Road, Anchorage, AK

HVACPlumbingPhone listedWebsiteHours listedSource: OSM

Southern Services

1409 Kathy Lane Southwest, Decatur, AL

HVACPhone listedWebsiteSource: OSM

Listings: © OpenStreetMap contributors (ODbL) · Data last updated November 6, 2026 · Sources & method