Best HVAC in Bethlehem, PA

Updated September 2026 · 7 businesses · Bethlehem guide

Looking for HVAC in Bethlehem? Below you'll find 7 local options with their address, phone number, website and opening hours, plus practical advice on choosing the right one.

What they do: Heating and cooling contractors for furnace and boiler repair, AC installation, heat pumps and maintenance plans. Pennsylvania winters make a fall furnace tune-up a smart habit.

This guide lists 7 HVAC in and around Bethlehem, spread across 4 ZIP codes. Listings are organized so you can compare them at a glance and contact them directly.

Top 7 HVAC in Bethlehem

Listings are shown in no paid order: no business can pay to appear or to rank higher on this page.

1 Air Filtration Management

ZIP 18018
  • Address 1505 West Broad Street, Bethlehem, PA 18018

Directions

2 Deiter Bros. Heating Cooling Energy

ZIP 18017
  • Address 1226 Stefko Boulevard, Bethlehem, PA 18017

Directions

3 Fritch

ZIP 18018
  • Address 116 River Street, Bethlehem, PA 18018

Directions

4 Apgar Oil & Energy

ZIP 18109
  • Address 639 East Congress Street, Allentown, PA 18109

Directions

5 Howard Refrigeration & Air Conditioning

ZIP 18109
  • Address 1124 North Sherman Street, Allentown, PA 18109

Directions

6 Airtemp

ZIP 18015
  • Address 502 South Clewell Street, Fountain Hill, PA 18015

Directions

7 Curtis Total Service

ZIP 18109
  • Address 1415 East Pennsylvania Street, Allentown, PA 18109

Directions

How to choose HVAC in Bethlehem

  • Ask for the contractor's Pennsylvania Home Improvement Contractor (HIC) registration number. It's required for most home improvement work over $500 and must appear on contracts and ads.
  • Get at least three written estimates that list materials, labor, timeline and cleanup.
  • Ask for proof of liability insurance and, if they have employees, workers' compensation coverage.
  • Check whether the job needs a permit in Bethlehem and who will pull it. A good contractor handles this for you.
  • Never pay the full price up front. A reasonable deposit followed by payments tied to progress protects you.

Local tips for Bethlehem

Bethlehem straddles two counties, so property records, courts and some services depend on whether your address is in the Northampton or Lehigh County part of the city.

The SouthSide and Historic Downtown are compact and walkable, but parking fills up during Musikfest in August and the Christkindlmarkt season.

Bethlehem is in Northampton and Lehigh counties, and local phone numbers use the 610 and 484 area codes. Popular areas include Historic Downtown, SouthSide, Center City, West Bethlehem, North Side, Northeast Bethlehem.

Frequently asked questions

Which areas of Bethlehem do these HVAC cover?

The HVAC on this list are located in ZIP codes 18015, 18017, 18018, 18109. Many businesses also serve nearby neighborhoods and suburbs, so ask when you call.

How much do HVAC charge in Bethlehem?

Prices depend on the size of the job, materials and urgency. Emergency, evening and weekend calls usually cost more. Ask for a written estimate, and for bigger jobs compare at least three quotes.

Do contractors need a license in Pennsylvania?

Pennsylvania requires most home improvement contractors to register with the Attorney General under the Home Improvement Consumer Protection Act. Some trades, such as plumbers and electricians, are also licensed locally by cities or counties.

What should a home improvement contract include?

Under Pennsylvania law, contracts must be in writing and include the contractor's HIC number, a description of the work, the total price, start and completion dates, and your right to cancel within three business days.

Business data for this page comes from © OpenStreetMap contributors (ODbL), reviewed and formatted by Pennsylvania Connection.

Information is collected from public sources and may change. Please confirm hours, prices and availability directly with each business. Business owner? Ask us to update your listing.