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Best HVAC companies in Marlborough, MA

The highest-scoring HVAC company in and near Marlborough is Wellesley Plumbing & Heating Inc. (score 73, 4.9 stars from 240 Google reviews). 5 companies meet the 5 Star standard within 25 km.

Last updated Sep 25, 2026How we rank
  1. 1

    Wellesley Plumbing & Heating Inc.

    4.9 · 240 Google reviewsWellesley, MA
    73SCORE
    (781) 237-9400 WebsiteFull profile
  2. 2

    Unified HVAC Service

    4.9 · 140 Google reviewsDover, MA
    71SCORE
    (508) 500-8563Full profile
  3. 3

    781 Plumbing & HVAC Corp

    4.9 · 67 Google reviews
    69SCORE
    (781) 215-4787 WebsiteFull profile
  4. 4

    Champion Heating & Air Conditioning

    4.8 · 109 Google reviewsAuburndale, MA
    67SCORE
    (339) 220-5300 WebsiteFull profile
  5. 5

    The Lynch Company, Inc.

    4.9 · 218 Google reviewsWellesley, MA
    62SCORE
    (781) 237-2665 WebsiteFull profile

We list only companies that clear our published bar, so this area is still filling in. As more HVAC companies near Marlborough qualify, they'll appear here automatically.

Compare the top 5

Top HVAC companies in Marlborough by 5 Star Score
#CompanyScoreGoogle ratingReviewsYearsBased in
1Wellesley Plumbing & Heating Inc.734.9240–Wellesley
2Unified HVAC Service714.9140–Dover
3781 Plumbing & HVAC Corp694.967–
4Champion Heating & Air Conditioning674.8109–Auburndale
5The Lynch Company, Inc.624.9218–Wellesley

HVAC companies in Marlborough: quick answers

Who is the highest-rated HVAC company in Marlborough, MA?

Wellesley Plumbing & Heating Inc. has the highest 5 Star Score among HVAC companies in and near Marlborough: 73 out of 100, with a 4.9 star Google rating from 240 reviews.

How many 5 Star HVAC companies serve Marlborough?

5 HVAC companies meet our standard within 25 km of Marlborough: at least a 4.5 star rating, 20 or more reviews and a score of 60 or higher. The top 5 have 774 Google reviews between them, averaging 4.88 stars.

How are these HVAC companies ranked?

By 5 Star Score: rating quality adjusted for review count (45 points), review volume (25), review recency (15), years in business (10) and license verification (5). Businesses cannot pay to change their score.

HVAC companies near Marlborough

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Ratings and review counts come from each company's public Google listing and are re-checked monthly. 5 Star Home Service Pros is independent; companies cannot pay for placement.