Best HVAC companies in Wilmington, DE

The highest-scoring HVAC company in and near Wilmington is H & H Heating and Air Conditioning Inc. (score 82, 4.9 stars from 2,240 Google reviews). 3 companies meet the 5 Star standard within about 16 miles.

Last updated Nov 1, 2026How we rank
  1. 1

    H & H Heating and Air Conditioning Inc.

    4.9 · 2,240 Google reviewsEssington, PA

    H & H Heating and Air Conditioning Inc. installs and services heating, cooling, hot water, indoor air quality, and ductless equipment. Its website says the company works with all brands and identifies Amana, Bryant, C…

    82SCORE
  2. 2

    True Blue Mechanical

    4.9 · 219 Google reviewsNewark, DE
    InsuredEmergency serviceFinancing available
    73SCORE
  3. 3

    Dormann's Heating & Cooling, LLC

    4.9 · 615 Google reviewsEast Greenwich Township, NJ
    70SCORE

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

Compare the top 3

Top HVAC companies in Wilmington by 5 Star Score
#CompanyScoreGoogle ratingReviewsYearsBased in
1H & H Heating and Air Conditioning Inc.824.92,240–Essington
2True Blue Mechanical734.9219–Newark
3Dormann's Heating & Cooling, LLC704.9615–East Greenwich Township

HVAC companies in Wilmington: quick answers

Who is the highest-rated HVAC company in Wilmington, DE?

H & H Heating and Air Conditioning Inc. has the highest 5 Star Score among HVAC companies in and near Wilmington: 82 out of 100, with a 4.9 star Google rating from 2,240 reviews.

How many 5 Star HVAC companies serve Wilmington?

3 HVAC companies meet our standard within about 16 miles of Wilmington: at least a 4.5 star rating, 20 or more reviews and a score of 60 or higher. The top 3 have 3,074 Google reviews between them, averaging 4.90 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.

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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.