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Best HVAC Contractors in Greenville, OH (2026)

59 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Greenville: Bassett Services: Heating, Cooling, Plumbing & Electrical, CR Score 61/100; 4.8★ from 1,413 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): One Hour Heating & Air Conditioning® of Dayton, posts 24/7 hours; ranked #2 of 59.

  3. 7

    Most-reviewed: HVACDirect.com, 934 Google reviews at 4.5★, the most of 59 ranked after Bassett Services: Heating, Cooling, Plumbing & Electrical; ranked #7.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

59 Greenville HVAC contractors are ranked here by CR Score, from ten published factors. 17 are open 24/7, 28 open Saturdays and 21 open Sundays, based on posted hours. The median Google rating is 4.8★ across 59 rated businesses.

Top 10 HVAC contractors in Greenville at a glance

Top 10 HVAC contractors in Greenville at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Bassett Services: Heating, Cooling, Plumbing & Electrical614.8★ (1,413)Eaton, 25 mi away24/7Overall
2One Hour Heating & Air Conditioning® of Dayton605.0★ (281)Englewood, 23 mi away24/7Emergencies
3Allied Services, Inc.594.9★ (159)Clayton, 22 mi away24/7—
4Barga Heating A/C & Refrig Inc584.7★ (122)Greenville——
5Specialized Mechanical584.8★ (148)Richmond, 24 mi away24/7—
6Crabtree Heating & Air Conditioning Inc.575.0★ (188)Clayton, 25 mi away24/7—
7HVACDirect.com574.5★ (934)Troy, 21 mi awaySat · EveningsMost reviews
8ThermoPro Heating and Air Conditioning LLC564.8★ (49)Brookville, 22 mi away24/7—
9JH Heating and Air Conditioning564.8★ (76)Piqua, 22 mi awaySat · Sun · Evenings—
10Bolyard Heating & Cooling Inc554.5★ (38)Greenville——

The 59 best HVAC contractors in Greenville, ranked

Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.

  1. Ranked #1 in Greenville

    Based in Eaton, 25 mi away

    61/100CR Score

    Ranked #1 because of its Google rating and review volume: 4.8★ from 1,413 Google reviews, the most in Greenville.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.8★ from 1,413 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1417 E Main St, Eaton, OH 45320
  2. Based in Clayton, 22 mi away

    59/100CR Score

    Ranked #3 because of its Google rating and trade focus: 4.9★ from 159 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.9★ from 159 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    109 S Diamond Mill Rd, Clayton, OH 45315
  3. Based in Richmond, 24 mi away

    58/100CR Score

    Ranked #5 because of its Google rating and trade focus: 4.8★ from 148 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.8★ from 148 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    825 Liberty Ave, Richmond, IN 47374
  4. Based in Troy, 21 mi away

    57/100CR Score

    Ranked #7 because of its Google rating and trade focus: 4.5★ from 934 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.5★ from 934 Google reviews
    Hours
    Mon–Fri 8 AM–11 PM · Sat 10 AM–6 PM · Sun closed
    Address
    2331 OH-55, Troy, OH 45373
  5. Based in Greenville

    55/100CR Score

    Ranked #10 because of its Google rating and trade focus: 4.5★ from 38 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.5★ from 38 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    1480 Sweitzer St, Greenville, OH 45331
  6. Based in Englewood, 22 mi away

    55/100CR Score

    Ranked #11 because of its Google rating and trade focus: 5.0★ from 22 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 22 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    615 Franklin Ave, Englewood, OH 45322
  7. Based in Piqua, 21 mi away

    55/100CR Score

    Ranked #12 because of its Google rating and trade focus: 4.9★ from 247 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.9★ from 247 Google reviews
    Hours
    Mon–Fri 7 AM–4:30 PM · Sat–Sun closed
    Address
    401 S College St, Piqua, OH 45356
  8. Based in Eaton, 24 mi away

    55/100CR Score

    Ranked #13 because of its Google rating and trade focus: 5.0★ from 53 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 53 Google reviews
    Hours
    Mon–Sun 9 AM–5 PM
  9. Based in Piqua, 19 mi away

    54/100CR Score

    Ranked #14 because of its Google rating and trade focus: 4.9★ from 68 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.9★ from 68 Google reviews
    Hours
    Mon–Sat 8 AM–4 PM · Sun closed
    Address
    1725 High St, Piqua, OH 45356
  10. Based in Troy, 22 mi away

    54/100CR Score

    Ranked #16 because of its Google rating and trade focus: 4.4★ from 23 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.4★ from 23 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1576 N County Rd 25A, Troy, OH 45373
  11. Based in Clayton, 20 mi away

    54/100CR Score

    Ranked #18 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 8 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1055 S Miami St, West Milton, OH 45383
  12. Based in Richmond, 24 mi away

    54/100CR Score

    Ranked #20 because of its Google rating and trade focus: 4.1★ from 48 Google reviews, listed on Google as “Air conditioning contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.1★ from 48 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    110 W Main St, Richmond, IN 47374
  13. Based in Englewood, 24 mi away

    54/100CR Score

    Ranked #21 because of its Google rating and trade focus: 4.9★ from 80 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.9★ from 80 Google reviews
    Hours
    Mon–Fri 7:30 AM–5 PM · Sat 8 AM–1 PM · Sun closed
    Address
    121 Havenwood Dr, Englewood, OH 45322
  14. Based in Englewood, 22 mi away

    53/100CR Score

    Ranked #23 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 8 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    102 Woodard Dr, Englewood, OH 45322
  15. Based in Englewood, 25 mi away

    53/100CR Score

    Ranked #24 because of its Google rating and trade focus: 5.0★ from 49 Google reviews, listed on Google as “HVAC contractor”.

    Based on 7 of 10 factors; credentials, recency and availability not yet collected.

    • 5.0★ from 49 Google reviews
    Address
    228 Porter Dr, Englewood, OH 45322
  16. Based in Piqua, 24 mi away

    53/100CR Score

    Ranked #25 because of its Google rating and trade focus: 4.0★ from 51 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.0★ from 51 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days

HVAC contractors ranked #26 to #50

#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 59 ranked HVAC contractors here; the rest are on their profiles.

HVAC contractors in Greenville, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Burns Air Care534.9★ (57)24 mi
27Fort Wayne Furnace Repair and Air Conditioning Repair523.7★ (3)18 mi
28Enervise525.0★ (6)24 mi
29Knuth LLC525.0★ (14)18 mi
30R OWN Heating Company525.0★ (61)21 mi
31Plumbsmith Heating Air & Plumbing524.2★ (19)In Greenville
32Lowman Heating and Air524.2★ (44)25 mi
33DanTec, LLC525.0★ (4)24 mi
34JD Mechanical LLC514.9★ (63)23 mi
35Westfall Plumbing & Heating513.8★ (12)In Greenville
36Mechanical Options HVAC LLC505.0★ (6)19 mi
37Abbey Road Chimney Services504.9★ (872)22 mi
38Meredith Heating & Cooling504.2★ (19)21 mi
39Mark Sweitzer Heating, Cooling & Refrigeration, Inc.505.0★ (22)21 mi
40Reynolds Plumbing and HVAC504.5★ (69)23 mi
41Burkett's Heating & Cooling504.6★ (32)22 mi
42Tim's Heating & Cooling505.0★ (9)18 mi
43Brock Air Products493.5★ (14)21 mi
44J & M Heating & Cooling495.0★ (5)22 mi
45Endi's All Around485.0★ (5)18 mi
46Rays Mechanical Services LLC485.0★ (4)18 mi
47JDI Heating & Air Conditioning483.7★ (3)23 mi
48Hurricane Heating & Air, Inc.485.0★ (4)19 mi
49Generations Heating and Cooling485.0★ (3)25 mi
50Rheem HVAC482.6★ (8)18 mi

Also serving Greenville

20 more HVAC contractors within 25 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.

How much do HVAC contractors cost in Greenville?

National price ranges in USD, not adjusted for Greenville. Each row names its basis and the month we checked it.

How much do HVAC contractors cost in Greenville?
JobLowTypicalHighBasisChecked
AC replacement$3,887$5,978$8,073Per system, installed (unit plus labor); typical range of customer-reported jobs. US national rangeOctober 2026
Furnace replacement$2,823$4,814$6,896Per system, installed; typical range of customer-reported jobs. US national rangeOctober 2026

How to check an HVAC contractor's license in Ohio

In Ohio, Ohio Construction Industry Licensing Board licenses Commercial HVAC and refrigeration contractor licenses.

  1. Search the business name or license number on the Ohio Construction Industry Licensing Board license lookup.
  2. Check that the status is active and the name matches the contract or truck.
  3. Ask for proof of insurance before work starts.

No chip usually means we have not matched a state record yet. Check the lookup yourself before you hire.

Guide checked October 2026. How we verify licenses

When to hire an HVAC contractor in Ohio

In Ohio, furnace and heat pump calls peak in the coldest winter weeks and AC calls in summer heat waves. Spring and fall are the easiest times to book maintenance or a replacement.

How we ranked Greenville HVAC contractors

We scored 59 Greenville HVAC contractors on ten factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, not counted as zero. Scores last refreshed October 22, 2026.

Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed fromIn Greenville data
Reputation25%Google star rating, adjusted for how many reviews back itMeasured
Credentials15%Active state license, bond and workers’ comp on fileNot yet collected
Review volume10%Number of Google reviews, compared with the most-reviewed business on the listMeasured
Recency5%Share of reviews from the last 12 monthsNot yet collected
Availability5%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%How clearly the business does this trade (its Google category and name)Measured
Proximity5%Based in the city scores highest, less the farther away it isMeasured
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)Measured
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodicallyMeasured
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there areMeasured

HVAC contractors in Greenville: frequently asked questions

Who is the best HVAC contractor in Greenville?

By CR Score, the highest-ranked HVAC contractor in Greenville, OH is Bassett Services: Heating, Cooling, Plumbing & Electrical with a CR Score of 61/100. It has 4.8★ from 1,413 Google reviews. It is open 24/7. One Hour Heating & Air Conditioning® of Dayton (#2) and Allied Services, Inc. (#3) follow. We ranked 59 HVAC contractors on ten factors, last updated October 22, 2026.

How many HVAC contractors are there in Greenville?

ContractorsRanked ranks 59 HVAC contractors serving Greenville, OH. 4 of them are based in Greenville; the rest serve it from nearby towns. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.

Which HVAC contractors in Greenville are open 24/7?

17 ranked HVAC contractors in Greenville post 24/7 hours. The highest-ranked are Bassett Services: Heating, Cooling, Plumbing & Electrical (#1), One Hour Heating & Air Conditioning® of Dayton (#2) and Allied Services, Inc. (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which HVAC contractors in Greenville work on weekends?

28 of 59 ranked HVAC contractors post Saturday hours and 21 post Sunday hours. The highest-ranked open Saturdays are Bassett Services: Heating, Cooling, Plumbing & Electrical (#1), One Hour Heating & Air Conditioning® of Dayton (#2) and Allied Services, Inc. (#3). Posted hours are office hours; crews may book weekend jobs separately.

How do I check an HVAC contractor's license in Ohio?

In Ohio, Ohio Construction Industry Licensing Board handles licensing and covers Commercial HVAC and refrigeration contractor licenses. Search the business or license number at https://elicense.ohio.gov/oh_verifylicense.

How much does ac replacement cost in Greenville?

AC replacement typically costs $3,887 to $8,073, with $5,978 typical (Per system, installed (unit plus labor); typical range of customer-reported jobs. US national range). This is a national range, not adjusted for Greenville. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do Greenville HVAC contractors have?

The median Google rating among 59 rated HVAC contractors in Greenville is 4.8★, with a median of 25 reviews. Bassett Services: Heating, Cooling, Plumbing & Electrical has the most, 1,413 reviews, and ranks #1. We adjust ratings for review count, so a few five-star reviews cannot top the list.

When is the best time to hire an HVAC contractor in Greenville?

In Ohio, furnace and heat pump calls peak in the coldest winter weeks and AC calls in summer heat waves. Spring and fall are the easiest times to book maintenance or a replacement.

Update log for Greenville

  1. October 2026: CR Scores recalculated for 59 hvac contractors serving Greenville.
  2. October 2026: 1 duplicate listing merged.

More HVAC contractors and Greenville pages

Other trades in Greenville