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Emergency HVAC Contractors in Millersville, PA (2026)

Top 50 of 213 HVAC contractors, in emergency orderUpdated 0 paid placements in this rankingHow we rank

25 of the 50 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 Millersville: One Hour Heating & Air Conditioning, 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 Millersville at a glance

Top emergency HVAC contractors in Millersville at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1One Hour Heating & Air Conditioning674.8★ (4,089)Lancaster, 4 mi away24/7
2Neffsville Plumbing, Heating & Cooling Services674.8★ (3,829)Lancaster, 4 mi away24/7
3Topline Heating & Air664.8★ (2,281)Lancaster, 3 mi away24/7
4JK Mechanical664.9★ (1,332)Willow Street, 4 mi away24/7
5Ranck Plumbing, Heating, AC & Excavation654.8★ (930)Lancaster, 4 mi away24/7
6HL Bowman Inc Plumbing Heating & AC624.8★ (1,156)Red Lion, 15 mi away24/7
7Home Climates Inc624.8★ (1,892)Elizabethtown, 18 mi away24/7
8UGI Heating, Cooling & Plumbing624.6★ (254)Lancaster, 5 mi away24/7
9Haller Enterprises624.8★ (2,011)York, 21 mi away24/7
10Papa's Plumbing, Heating & Air Conditioning LLC625.0★ (106)Lancaster, 6 mi away24/7

Call an emergency HVAC contractor in Millersville 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 50 emergency HVAC contractors in Millersville, ranked

24/7 first, then same-day service, then the rest. Each group is in CR Score order on emergency weights. The full ranking of all 213 is on the HVAC contractors page.

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

  4. #4 JK Mechanical

    Based in Willow Street, 4 mi away

    66/100CR Score

    Ranked #4 because of its Google rating and trade focus: 4.9★ from 1,332 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 1,332 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    202 W Kendig Rd, Willow Street, PA 17584
    View profile for JK Mechanical(717) 464-0111

  7. #7 Home Climates Inc

    Based in Elizabethtown, 18 mi away

    62/100CR Score

    Ranked #7 because of its Google rating and trade focus: 4.8★ from 1,892 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 1,892 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    76 Hershey Rd, Elizabethtown, PA 17022
    View profile for Home Climates Inc(717) 689-4151

  9. #9 Haller Enterprises

    Based in York, 21 mi away

    62/100CR Score

    Ranked #9 because of its Google rating and trade focus: 4.8★ from 2,011 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 2,011 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    801 Loucks Rd #1927, York, PA 17404
    View profile for Haller Enterprises(717) 885-8007

  17. #17 The Witmer Company

    Based in New Holland, 15 mi away

    59/100CR Score

    Ranked #17 because of its Google rating and trade focus: 4.7★ from 110 Google reviews, listed on Google as “HVAC contractor”.

    • 4.7★ from 110 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    286 Locust St, New Holland, PA 17557
    View profile for The Witmer Company(717) 354-4281

  20. #20 Cool Masters

    Based in York, 16 mi away

    58/100CR Score

    Ranked #20 because of its Google rating and trade focus: 4.8★ from 93 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 93 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    3610 Ridgewood Rd, York, PA 17406
    View profile for Cool Masters(717) 755-7611

  21. #21 Hanes Mechanical

    Based in Elizabethtown, 17 mi away

    58/100CR Score

    Ranked #21 because of its Google rating and trade focus: 4.8★ from 89 Google reviews, listed on Google as “Heating contractor”.

    • 4.8★ from 89 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1086 W Bainbridge St, Elizabethtown, PA 17022
    View profile for Hanes Mechanical(717) 366-0311

  22. #22 Tempchek

    Based in Lancaster, 9 mi away

    58/100CR Score

    Ranked #22 because of its Google rating and trade focus: 4.9★ from 20 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 20 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    667 Hartman Station Rd, Lancaster, PA 17601
    View profile for Tempchek(717) 393-7572

  23. #23 Prime Home HVAC

    Based in York, 21 mi away

    58/100CR Score

    Ranked #23 because of its Google rating and trade focus: 5.0★ from 117 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 117 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    52 Grumbacher Rd STE 52-2, York, PA 17406
    View profile for Prime Home HVAC(717) 462-7855

Top 50 of 213 HVAC contractors by emergency score

#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile.

HVAC contractors in Millersville, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Advanced Heating, Cooling, and Plumbing LLC575.0★ (82)22 mi
27Wisner Mechanical575.0★ (8)8 mi
28Elizabethtown Heating & Cooling, Inc.574.8★ (35)17 mi
29Fish & Buch Heating & Air Conditioning574.6★ (14)11 mi
30SlateHouse Home Repair574.2★ (5)6 mi
31PureComfort HVAC Repair564.9★ (88)25 mi
32Sweitzer HVAC & Plumbing LLC564.8★ (45)21 mi
33Williams Service Company564.2★ (66)18 mi
34Doug Noel Heating and Air Conditioning565.0★ (18)17 mi
35DP Mechanical565.0★ (16)18 mi
36Yorktowne Industrial Solutions564.9★ (31)21 mi
37Superheat Refrigeration, LLC564.8★ (16)17 mi
38Express Plumbing, Heating and Air Conditioning555.0★ (46)25 mi
39Dutch Heating Inc554.6★ (32)21 mi
40Scott's H Plumbing554.6★ (33)22 mi
41Triangle Refrigeration553.3★ (7)12 mi
42One Way Mechanical, LLC555.0★ (15)20 mi
43Connelly Heating and Air Conditioning555.0★ (9)18 mi
44Ranck Plumbing, Heating, AC & Excavation544.8★ (54)14 mi
45CheckMark Mechanical LLC545.0★ (17)24 mi
46KALMS HVAC LLC545.0★ (16)24 mi
47DNR Services535.0★ (11)24 mi
48Comforting Solutions LLC535.0★ (3)18 mi
49Summit Refrigeration, LLC534.3★ (9)23 mi
50Crew Heating & Air Conditioning, LLC535.0★ (4)20 mi

How we ranked emergency HVAC contractors in Millersville

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 Millersville: questions

Which HVAC contractors in Millersville are open 24/7?

25 on this list post 24/7 hours, including One Hour Heating & Air Conditioning, Neffsville Plumbing, Heating & Cooling Services, Topline Heating & Air, JK Mechanical and Ranck Plumbing, Heating, AC & Excavation.

Who is ranked #1 for emergency heating and cooling in Millersville, PA?

One Hour Heating & Air Conditioning is #1, with a CR Score of 67 out of 100 on emergency weights.

How are emergency HVAC contractors in Millersville 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 Millersville

  1. October 2026: CR Scores recalculated for 213 hvac contractors serving Millersville.
  2. October 2026: 1 duplicate listing merged.

More emergency and heating and cooling pages