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Emergency HVAC Contractors in Greenwood, SC (2026)

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

13 of the 30 HVAC contractors on this list post 24/7 hours. 24/7 businesses come first, then same-day, each ranked by CR Score with availability weighted higher.

If you smell gas, leave the building now and call your gas utility or 911 from outside.

The short answer

  1. 1

    #1 for emergency heating and cooling in Greenwood: Home Comfort Systems Heating, Cooling & Plumbing, open 24/7.

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

Top emergency HVAC contractors in Greenwood at a glance

Top emergency HVAC contractors in Greenwood at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Home Comfort Systems Heating, Cooling & Plumbing684.9★ (1,796)Greenwood24/7
2Climate Control Systems of Greenwood, INC684.9★ (1,092)Greenwood24/7
3One Hour Heating & Air Conditioning® of Greenwood684.9★ (1,113)Greenwood24/7
4Rush Heating and Cooling Inc.674.9★ (935)Greenwood24/7
5Mathis Plumbing & Heating Co.,Inc644.7★ (238)Greenwood24/7
6Higgins Heating & Cooling645.0★ (125)Greenwood24/7
7Harrell HVAC635.0★ (65)Greenwood24/7
8Chavis Heating & Cooling625.0★ (226)Abbeville, 13 mi away24/7
9Scott's Heating & Cooling614.4★ (40)Greenwood24/7
10Hughes Heating and Cooling LLC605.0★ (12)Greenwood24/7

Call an emergency HVAC contractor in Greenwood now

24/7 hours mean the business says its phone is answered around the clock. Arrival time depends on where the crew is. Ask for an arrival window when you call.

The 30 emergency HVAC contractors in Greenwood, ranked

24/7 first, then same-day service, then the rest. Each group is in CR Score order on emergency weights.

Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  7. #7 Harrell HVAC

    Based in Greenwood

    63/100CR Score

    Ranked #7 because of its Google rating and trade focus: 5.0★ from 65 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 65 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for Harrell HVAC(864) 993-4790

  16. #16 Deale's LLC

    Based in Greenwood

    43/100CR Score

    Ranked #16 because of its Google rating and trade focus: 4.7★ from 43 Google reviews, listed on Google as “HVAC contractor”.

    • 4.7★ from 43 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    1116 Siloam Church Rd, Greenwood, SC 29646
    View profile for Deale's LLC(864) 227-6975

  23. #23 Greenwood Air Systems

    Based in Greenwood

    40/100CR Score

    Ranked #23 because of its Google rating and trade focus: 4.0★ from 4 Google reviews, listed on Google as “Air conditioning contractor”.

    • 4.0★ from 4 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    102 Twisted Oak Dr, Greenwood, SC 29646
    View profile for Greenwood Air Systems(864) 229-8060

All 30 HVAC contractors by emergency score

#1 to #25 are shown in full above. Here are #26 to #30, in CR Score order; each links to its profile.

HVAC contractors in Greenwood, ranks 26 to 30
RankBusinessCR ScoreGoogle ratingDistance
26Ray's Plumbing & Heating Services374.9★ (81)14 mi
27Gregory Service Company354.3★ (18)24 mi
28Hill's Service Company353.8★ (6)20 mi
29House Doctor344.8★ (6)In Greenwood
30Burns Service Center Inc343.6★ (5)24 mi

How we ranked emergency HVAC contractors in Greenwood

Emergency lists move 10 points of the CR Score from reputation to availability: 15% and 15%. Availability credits 24/7 hours, same-day service, weekend hours and weekly open hours. 24/7 HVAC contractors are listed first, then same-day, then the rest; ranks follow that order. Paid placement never changes a rank.

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 from
Reputation15%Google star rating, adjusted for how many reviews back it
Credentials15%Active state license, bond and workers’ comp on file
Review volume10%Number of Google reviews, compared with the most-reviewed business on the list
Recency5%Share of reviews from the last 12 months
Availability15%Weekly open hours, Saturday, Sunday, 24/7 or same-day
Trade focus10%How clearly the business does this trade (its Google category and name)
Proximity5%Based in the city scores highest, less the farther away it is
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodically
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there are

Emergency HVAC contractors in Greenwood: questions

Which HVAC contractors in Greenwood are open 24/7?

13 on this list post 24/7 hours, including Home Comfort Systems Heating, Cooling & Plumbing, Climate Control Systems of Greenwood, INC, One Hour Heating & Air Conditioning® of Greenwood, Rush Heating and Cooling Inc. and Mathis Plumbing & Heating Co.,Inc.

Who is ranked #1 for emergency heating and cooling in Greenwood, SC?

Home Comfort Systems Heating, Cooling & Plumbing is #1, with a CR Score of 68 out of 100 on emergency weights.

How are emergency HVAC contractors in Greenwood ranked?

Emergency lists move 10 points of the CR Score from reputation to availability: 15% and 15%. Availability credits 24/7 hours, same-day service, weekend hours and weekly open hours. 24/7 HVAC contractors are listed first, then same-day, then the rest; ranks follow that order. Paid placement never changes a rank.

What should I do before the HVAC contractor arrives?

If you smell gas, leave the building now and call your gas utility or 911 from outside.

How many emergency HVAC contractors here list a phone number?

25 of the 25 businesses ranked in full list a phone number. Tap Call to dial it.

Update log for Greenwood

  1. October 2026: CR Scores recalculated for 30 hvac contractors serving Greenwood.
  2. October 2026: 2 duplicate listings merged.

More emergency and heating and cooling pages