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Emergency HVAC Contractors in Lago Vista, TX (2026)

Top 50 of 433 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 Lago Vista: Radiant Plumbing, Air Conditioning, & Electrical, 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 Lago Vista at a glance

Top emergency HVAC contractors in Lago Vista at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Radiant Plumbing, Air Conditioning, & Electrical634.8★ (16,163)Austin, 19 mi away24/7
2Abacus Plumbing, Air Conditioning, & Electrical624.8★ (5,822)Austin, 17 mi away24/7
3Airtron Heating & Air Conditioning624.8★ (1,804)Austin, 12 mi away24/7
4Patriot Appliance & Air Conditioning Repair Service624.8★ (581)Leander, 7 mi away24/7
5McCullough Heating & Air Conditioning624.8★ (3,098)Austin, 17 mi away24/7
6Stan's Heating, Air, Plumbing & Electrical624.7★ (5,916)Austin, 19 mi away24/7
7Aero Designed Systems625.0★ (247)Lakeway, 7 mi away24/7
8Fox Service Company624.8★ (5,061)Austin, 20 mi away24/7
9Airsheen Services LLC615.0★ (323)Austin, 9 mi away24/7
10Strand Brothers Service Experts614.8★ (7,390)Austin, 23 mi away24/7

Call an emergency HVAC contractor in Lago Vista 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 Lago Vista, 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 433 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.

  7. #7 Aero Designed Systems

    Based in Lakeway, 7 mi away

    62/100CR Score

    Ranked #7 because of its Google rating and trade focus: 5.0★ from 247 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 247 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    15400 Cavalier Canyon Dr Ste. A, Lakeway, TX 78734
    View profile for Aero Designed Systems(512) 261-3530

  8. #8 Fox Service Company

    Based in Austin, 20 mi away

    62/100CR Score

    Ranked #8 because of its Google rating and trade focus: 4.8★ from 5,061 Google reviews, listed on Google as “Air conditioning repair service”.

    • 4.8★ from 5,061 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1506 Ferguson Ln Suite #102, Austin, TX 78754
    View profile for Fox Service Company

  22. #22 AC Express

    Based in Cedar Park, 9 mi away

    60/100CR Score

    Ranked #22 because of its Google rating and trade focus: 4.7★ from 234 Google reviews, listed on Google as “HVAC contractor”.

    • 4.7★ from 234 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2006 Simbrah Dr, Cedar Park, TX 78613
    View profile for AC Express(512) 452-2653

  24. #24 The Cool Crew

    Based in Leander, 13 mi away

    60/100CR Score

    Ranked #24 because of its Google rating and trade focus: 4.8★ from 426 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 426 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    241 Chitalpa St #4113, Leander, TX 78641
    View profile for The Cool Crew(737) 637-3900

Top 50 of 433 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 Lago Vista, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Air & Plumbing Today: HVAC Department604.9★ (82)6 mi
27Supreme Air Austin | Air Duct Cleaning | Dryer Vent Cleaning605.0★ (840)20 mi
28ARS / Rescue Rooter604.4★ (4,843)21 mi
29Efficient AC, Electric & Plumbing604.8★ (738)17 mi
30AiRCO Air Conditioning, Electrical and Plumbing604.8★ (937)18 mi
31Aire Serv of Cedar Park604.9★ (54)5 mi
32Comfort Masters Heating & Air Conditioning604.8★ (115)8 mi
33E & J Comfort Air Inc604.8★ (24)In Lago Vista
34Precision604.7★ (1,602)20 mi
35Schneider Mechanical594.9★ (296)15 mi
36Texas Legacy Services, LLC595.0★ (47)6 mi
37Infinity AC of Austin595.0★ (207)15 mi
38Northwest Services ATX LLC595.0★ (12)In Lago Vista
39ABC Home & Commercial - HVAC Services Department594.9★ (929)23 mi
40Local Air Conditioning & Heating594.9★ (172)14 mi
41Blue Sky Heating and Air594.7★ (388)16 mi
42Green Leaf Plumbing AC, and Heating594.8★ (1,353)24 mi
43Mechanical Group595.0★ (32)6 mi
44Grande Air Solutions594.8★ (585)20 mi
45Aire Serv of Central and North Austin594.9★ (106)12 mi
46PerfectTemp Heating & Air Conditioning594.8★ (98)11 mi
47Quality Cooling, Heating & Plumbing594.9★ (897)24 mi
48Altabra Air Conditioning595.0★ (142)16 mi
49One Hour Heating & Air Conditioning595.0★ (91)13 mi
50North Lake Heating & Cooling584.4★ (36)4 mi

How we ranked emergency HVAC contractors in Lago Vista

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 Lago Vista: questions

Which HVAC contractors in Lago Vista are open 24/7?

25 on this list post 24/7 hours, including Radiant Plumbing, Air Conditioning, & Electrical, Abacus Plumbing, Air Conditioning, & Electrical, Airtron Heating & Air Conditioning, Patriot Appliance & Air Conditioning Repair Service and McCullough Heating & Air Conditioning.

Who is ranked #1 for emergency heating and cooling in Lago Vista, TX?

Radiant Plumbing, Air Conditioning, & Electrical is #1, with a CR Score of 63 out of 100 on emergency weights.

How are emergency HVAC contractors in Lago Vista 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?

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

Update log for Lago Vista

  1. October 2026: CR Scores recalculated for 433 hvac contractors serving Lago Vista.
  2. October 2026: 7 duplicate listings merged.

More emergency and heating and cooling pages