❄️ Official Rankings
10 Best HVAC in Medford, MA (August 2026)
We compared 10 hvac serving Medford and Middlesex County, Massachusetts, and ranked the top providers by verified reviews, ratings, and local reputation — 877 customer reviews in all.
The 10 listed below hold an average rating of 4.9 out of 5, led by In A Flash Heating and Plumbing. Updated for August 2026.
- HVAC ranked
- 10
- Average rating
- 4.9★
- Reviews analyzed
- 877
- Area codes
- 781, 617, 857
#1
In A Flash Heating and Plumbing
⭐ 5.0 · 107 reviews
26 Sprague Ct, Medford, MA 02155
#2
Waterworks Mechanical Inc.
⭐ 5.0 · 67 reviews
20 Sycamore Ave Ste 4006, Medford, MA 02155
#3
Green Tech Plumbing & Heating
⭐ 4.8 · 519 reviews
165 Middlesex Ave #1057, Somerville, MA 02145
#4
Big Blue Plumbing & Heating
⭐ 4.8 · 54 reviews
199 Middlesex Ave, Medford, MA 02155
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#10
Aldo’s HVAC LLC
⭐ 4.5 · 69 reviews
101 Hicks Ave Unit B, Medford, MA 02155
HVAC listed here serve Medford, Middlesex County, and nearby ZIP codes including 02153, 02155, 02156.