HVAC (heating & air conditioning) in Connecticut

AssistAnt lists HVAC companies for 138 Connecticut towns as of October 28, 2026. The most within 25 miles: Greenwich (688), Old Greenwich (545), Stamford (455), Norwalk (324), Westport (313). Each town page lists verified businesses first, then by distance. No business can pay for a higher spot.

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• Ansonia 271
• Avenue 76
• Baltic 54
• Beacon Falls 291
• Berlin 247
• Bethel 235
• Bethlehem 197
• Bloomfield 221
• Bolton 159
• Bozrah 63
• Branford 215
• Bridgeport 254
• Bristol 218
• Broad Brook 169
• Brookfield 186
• Brooklyn 96
• Burlington 206
• Canaan 21
• Canton 209
• Centerbrook 89
• Chaplin 74
• Cheshire 257
• Colchester 126
• Collinsville 204
• Columbia 119
• Cornwall Bridge 58
• Cromwell 237
• Danbury 222
• Danielson 108
• Derby 254
• East Granby 190
• East Hartford 214
• East Haven 215
• East Windsor 197
• Ellington 174
• Enfield 153
• Essex 85
• Fairfield 275
• Farmington 219
• Gilman 81
• Glastonbury 197
• Goshen 93
• Granby 186
• Greenwich 688
• Groton 44
• Guilford 161
• Hamden 257
• Hartford 223
• Harwinton 175
• Haven 256
• Higganum 209
• Jewett City 65
• Kensington 242
• Kent 95
• Killingworth 134
• Lebanon 124
• Litchfield 138
• Manchester 190
• Mansfield Center 111
• Marlborough 183
• Meriden 259
• Middlebury 301
• Middlefield 250
• Middletown 245
• Milford 227
• Monroe 266
• Mystic 42
• Naugatuck 305
• New Britain 229
• New Haven 236
• New London 47
• New Milford 150
• Newington 220
• Newtown 259
• North Branford 225
• North Grosvenor Dale 128
• North Haven 259
• North Stonington 43
• North Windham 76
• Northfield 195
• Norwalk 324
• Norwich 54
• Oakville 262
• Old Greenwich 545
• Old Saybrook 60
• Orange 243
• Oxford 290
• Pawcatuck 39
• Plainfield 79
• Plainville 230
• Plantsville 262
• Pomfret Center 79
• Portland 234
• Ridgefield 267
• Rocky Hill 217
• Salem 83
• Sandy Hook 264
• Seymour 278
• Shelton 250
• Simsbury 206
• Somers 149
• South Windsor 211
• Southbury 278
• Southington 254
• Southport 281
• Stafford 150
• Stafford Springs 146
• Stamford 455
• Stonington 39
• Storrs 89
• Stratford 260
• Tariffville 208
• Terryville 221
• Thomaston 217
• Thompson 131
• Torrington 140
• Trumbull 254
• Uncasville 54
• Vernon 176
• Vernon Rockville 172
• Voluntown 85
• Wallingford 248
• Waterbury 282
• Waterford 49
• Watertown 258
• West Hartford 219
• West Haven 212
• West Suffield 162
• Westbrook 85
• Westport 313
• Wethersfield 215
• Willimantic 94
• Willington 120
• Wilton 285
• Windsor 220
• Windsor Locks 184
• Wolcott 258
• Woodbury 262