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Massachusetts
HVAC companies in Worcester, MA
20 local HVAC companies based within about 35 miles of Worcester, listed A to Z with phone numbers, addresses and services. Paid placements are labeled.
No heat or no cooling right now?
If you smell gas or a carbon monoxide alarm sounds, leave first and call 911 or your gas utility from outside. Otherwise, call a company below that says it takes emergency calls. Quick checks first: AC not cooling · furnace not working.
The list
Worcester HVAC companies, A to Z
Filter by what each business says on its own website. “Says 24/7 emergency” means its site says so – call to confirm before you rely on it.
Your HVAC company, Worcester
The one City Spotlight place for Worcester sits here, above the A to Z list. Requests sent from this page for areas the Spotlight company serves go to it. Offered only to companies that pass our listing rules. How it works
AAIR Systems Technologies
Based in Oxford, MA · 250 Old Webster Rd, Oxford, MA 01540
Names on its website: Worcester, Holden, Shrewsbury, Westborough, Northborough, Paxton, Rutland, Princeton, West Boylston, Leicester and more
Ace Temperature Control
Based in Worcester, MA · 30 Ward St, Worcester, MA 01610
Names on its website: Central Massachusetts
Air Temperature Service, LLC
Based in Grafton, MA
Names on its website: Auburn, Shrewsbury, Westborough, Millbury, Northbridge, Marlborough, Milford, Hopkinton, Framingham, Hopedale and more
Beaudoin Heating & Air Conditioning
Based in Leominster, MA · 193 Mill St., Leominster, MA 01453
Names on its website: Fitchburg, Gardner, Westminster, Princeton, Lancaster, Clinton, Lunenburg, Hubbardston, Templeton, Ashburnham and more
Chaves Heating & Air Conditioning, Inc.
Based in Hudson, MA · 312 Main Street, Hudson, MA 01749
Names on its website: Worcester, Marlborough, Northborough, Acton, Concord, Maynard, Sudbury, Westford
License number shown on its website: RC000819
ckSmithSuperior
Based in Worcester, MA · 99 Crescent St, Worcester, MA 01605
Names on its website: Auburn, Shrewsbury, Leicester, Holden, Grafton, Northbridge, Millbury, Oxford, Charlton, Spencer and more
Control Point Heating • Cooling • Plumbing • Electric
Based in Shrewsbury, MA · 155 Memorial Dr, Suite D, Shrewsbury, MA 01545
Names on its website: Central MA, MetroWest
CPS Heating & Cooling
Based in Westborough, MA · 21 Brigham St, Westborough, MA 01581
Names on its website: Shrewsbury, Grafton, Holden, Boylston, Berlin, Clinton, Hopkinton, Ashland, Framingham, Franklin and more
License number shown on its website: License #: 4136
D & D Heating & Air Conditioning Inc
Based in North Oxford, MA · 125 Southbridge Road, North Oxford, MA 01537
Names on its website: Worcester County, Leicester, Auburn, Charlton, Spencer, Sturbridge, Millbury, Sutton, Webster, Dudley
DeWolfe Plumbing, Heating & Cooling
Based in West Boylston, MA · 211 Shrewsbury Street, West Boylston, MA 01583
Names on its website: Central Massachusetts
License number shown on its website: Sheet Metal Master #3098, #1604; Pipefitter Master PM-298806; Oil Burner Technician Certificate BU-145636; Master Plumbing License #9749
Endless Energy
Based in Marlborough, MA · 261 Cedar Hill Street Suite 100, Marlborough, MA 01752
Names on its website: Shrewsbury, Hudson, Framingham, Hopkinton, Holliston, Ashland, Concord
License number shown on its website: HIC #202202, Plumbing #4926, Electrical #8197 A1, Sheet Metal #934
Frey HVAC-R
Based in Oxford, MA
Names on its website: Worcester, Charlton, Central Massachusetts
Jay Moody HVAC
Based in Leominster, MA · 40 Albert Dr, Leominster, MA 01453
Names on its website: Worcester, Shrewsbury, Westborough, Sterling, Westminster, Shirley, Acton, Boxborough, Littleton
License number shown on its website: Electrical License #8320-A1; Plumbing License #5062
Landry Mechanical Inc, Plumbing HVAC & Electric
Based in Millbury, MA · 22 Howe Ave, Millbury, MA 01527
Names on its website: Shrewsbury, Auburn, Charlton, Boylston, Berlin, Bolton, Clinton, Douglas, Dudley, Brookfield and more
License number shown on its website: Sheet Metal Corp #729 | Oil Burner Technician #121198 | Plumbing Corp #3973 | Master Plumber #16306 | Electrical Corp #8267A1 | Master Electrician #22601A
McDonald Heating, AC and Plumbing, Inc.
Based in Auburn, MA · 200 Auburn Street, Auburn, MA 01501
Names on its website: Shrewsbury, Worcester County
License number shown on its website: MA License # 17759
Mid-State Air Systems
Based in Worcester, MA
Names on its website: Shrewsbury
Precision Home Services
Based in Northborough, MA · 5 Goddard Road, Northborough, MA 01532
Names on its website: Auburn, Boylston, Clinton, Grafton, Holden, Hudson, Marlborough, Berlin, Bolton, Douglas and more
License number shown on its website: Sheet Metal License #:890-B; Refrigeration #: RC-148280; Master Electrician #:LIC 8581 A1
Redmond HVAC LLC
Based in Worcester, MA
Names on its website: Bolton
SumZero Energy Systems
Based in Holliston, MA · 84 October Hill Rd, STE 7, Holliston, MA 01746
Names on its website: Auburn, Boylston, Berlin, Bolton, Ashland, Blackstone, Bellingham, Acton, Boxborough, Boston
Value Mechanical Plumbing, Heating & AC
Based in Brimfield, MA · 195 Palmer Rd, Brimfield, MA 01010
Names on its website: Auburn, Leicester, Holden, Grafton, Charlton, Brookfield, Clinton, Hudson, Marlborough, Framingham
Details on this page come from each business’s own website, checked October 2026. Free listings are shown alphabetically. How we list · Update or remove a listing
Before you hire
Checking an HVAC company in the Worcester area
HVAC licenses in Massachusetts
Licensing is split between the state and local governments.
Who licenses: Division of Occupational Licensure, Office of Public Safety and Inspections (OPSI); Dept. of Fire Services (oil burners)
License types: Pipefitter (Apprentice, Journeyman, Master), Refrigeration Technician, Refrigeration Contractor, Apprentice Refrigeration, Master and Journeyperson Sheet Metal Worker (plus sheet metal business license), Oil Burner Technician or Apprentice Certificate.
Companies: We found no single statewide HVAC contractor license on the Massachusetts pages we read; instead the state licenses by trade. Ventilation ductwork requires a licensed sheet metal worker, refrigeration work on systems of 10 tons or more requires a refrigeration license (M.G.L. c.146, s.81), and oil burner work requires an Oil Burner Technician certificate (527 CMR 1.00); c.146 s.81 also defines pipefitting to include air conditioning equipment.
Local rules: We could not confirm a single state license that covers whole-house heating and cooling, and we did not verify local permit rules, so check with the city or town building department.
Check a license: madpl.mylicense.com
Ask the company which state trade license covers your job (for example pipefitter, sheet metal or oil burner technician) and check each name on the state license verification site.
Federal rule: in every state, technicians who handle refrigerant must hold EPA Section 608 certification, whatever the state or city requires.
We could not confirm every detail from Massachusetts’s own sources, so treat this as a starting point and check with the agency.
Sources: mass.gov, mass.gov, malegislature.gov, malegislature.gov. Checked October 2026 from official sources. This is not legal advice.
Questions to ask
Ask every company the same questions: license number, insurance, EPA refrigerant certification, a written itemized estimate, a load calculation for new equipment, after-hours rates, who pulls the permit, and the warranty. All eight questions.
Seasonal care
Getting through a Worcester winter
Heating season is the long one in Worcester, so the furnace, boiler or heat pump does most of the work. Start with these before the first cold snap – and keep carbon monoxide alarms working.
Questions
Worcester HVAC questions
How many HVAC companies are listed in Worcester?
20 HVAC companies, each based within about 35 miles of Worcester. They are listed alphabetically.
Which Worcester HVAC companies say they offer 24/7 emergency service?
9 of the businesses listed here say on their own website that they offer 24/7 or 24-hour emergency service: AAIR Systems Technologies, Ace Temperature Control, ckSmithSuperior, CPS Heating & Cooling, Endless Energy, Frey HVAC-R, Landry Mechanical Inc, Plumbing HVAC & Electric, McDonald Heating, AC and Plumbing, Inc., Precision Home Services. Call to confirm availability and after-hours rates.
Do HVAC contractors in Worcester need a license?
In Massachusetts, licensing is split between the state and local governments. Check a license at madpl.mylicense.com.
Which Worcester companies work on heat pumps?
18 of the listed businesses say on their own website that they install or repair heat pumps. Use the Heat pumps filter above the list.
Which HVAC companies here do commercial work?
15 of the listed businesses say on their own website that they work on commercial properties. Use the Commercial filter above the list.
Do technicians need EPA certification?
Yes: federal rules require technicians who handle refrigerant to hold EPA Section 608 certification, in every state. Ask any company you are considering.
Nearby metro areas: New York City, NY · Boston, MA · Providence, RI · Hartford, CT · Buffalo, NY · Manchester, NH · Burlington, VT · Albany, NY. All of Massachusetts.
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No heat in freezing weather, or no cooling in dangerous heat? Call a company from the list that says it takes emergency calls – a form is not fast enough. If you smell gas or a carbon monoxide alarm sounds, leave first and call 911 or your gas utility from outside.