8 AC Installation Contractors in Randolph, MA
Top-Rated AC Installation Contractors in Randolph
Accurate LLC
“Emergency response speed dominates conversation across reviews, with five clients describing same-day or after-hours arrivals within 45 minutes. Pricing…”
Cox Engineering
“4 of 8 reviewers awarded 5 stars citing responsive service and friendly staff, while 3 reviewers assigned 1 star noting van-related disturbances and…”
All AC Installation Contractors (8 total)
Ferreira Plumbing & Heating Co
“Six reviewers awarded perfect five-star ratings, with three specifically naming Josh as the primary point of…”
Kool-Aire Inc
“Six of eight reviewers award five stars, with multiple customers emphasizing same-day response during heating…”
Endless Energy
“Both available reviews award five stars, with Robert Roy specifically praising the team's professional…”
Blue Hills Mechanical
“Two of four reviewers awarded 5-star ratings, praising the team's knowledge and affordability, while two…”
AC Installation Costs in Randolph
New central AC installation costs in Randolph, by system type and brand.
| Service | Low | Average | High |
|---|---|---|---|
Window unit | $168 | $392 | $784 |
Ductless mini-split (single zone) | $2,240 | $5,040 | $8,960 |
Central AC replacement (existing ducts) | $3,920 | $7,280 | $13,440 |
Central AC new install (with ductwork) | $7,840 | $13,440 | $22,400 |
Carrier (residential) | $4,256 | $6,944 | $11,760 |
Trane (residential) | $5,600 | $9,856 | $15,232 |
Lennox (residential) | $3,920 | $7,280 | $13,440 |
Rheem (residential) | $3,584 | $6,160 | $10,080 |
Prices reflect continental metro averages compiled from published industry cost guides, contractor surveys, and regional labor data. Last updated: April 2026.
AC Installation in Randolph, MA: What to Expect
Living near Boston means dealing with humidity that turns comfortable evenings into sticky ordeals once temperatures climb past eighty degrees. While heating takes priority through February freezes that dip to twenty-two degrees, those warm humid summers create genuine demand for proper cooling. Randolph homeowners have eight HVAC contractors to choose from, averaging a respectable 3.7 rating across more than two hundred reviews. Three of those companies offer around-the-clock coverage, which matters when August heat pushes inside.
Massachusetts maintains some of thestrictest HVAC licensing requirements in the nation, requiring contractors to hold both a Refrigeration Technician License and either a Sheet Metal or Pipefitter journeyman or master credential from the Division of Professional Licensure. These credentials directly influence what homeowners pay. A window unit runs roughly $168 to $784, while a ductless mini-split for a single zone spans $2,240 to $8,960. Replacing central air conditioning in homes with existing ductwork costs between $3,920 and $13,440 depending on system size and efficiency ratings.
Review patterns reveal what separates satisfactory work from frustration. Response time generates the strongest reactions, with several homeowners specifically mentioning technicians arriving within forty-five minutes of their call, even after hours. Pricing communication also surfaces repeatedly in positive feedback, where clients appreciate knowing exactly what to expect before work begins. These direct mentions give prospective customers realistic expectations beyond star ratings alone.