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ContractorsRanked

Best HVAC Contractors in Lake Bluff, IL (2026)

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

The short answer

  1. 1

    Best overall in Lake Bluff: Cahill Heating, Cooling, Electric, Plumbing & Sewer, CR Score 93/100; 5.0★ from 1,064 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): AA Service Co., posts 24/7 hours; ranked #2 of 886.

  3. 3

    Most-reviewed: ABC Plumbing, Sewer, Heating, Cooling & Electric, 22,524 Google reviews at 4.7★, the most of 886 ranked; ranked #3.

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

886 Lake Bluff HVAC contractors are ranked here by CR Score, from 8 published factors. 391 are open 24/7, 681 open Saturdays and 545 open Sundays, based on posted hours. The median Google rating is 4.9★ across 886 rated businesses.

Top 10 HVAC contractors in Lake Bluff at a glance

Top 10 HVAC contractors in Lake Bluff at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Cahill Heating, Cooling, Electric, Plumbing & Sewer935.0★ (1,064)Lake Bluff24/7Overall
2AA Service Co.914.9★ (3,150)Northbrook, 9 mi away24/7Emergencies
3ABC Plumbing, Sewer, Heating, Cooling & Electric914.7★ (22,524)Arlington Heights, 13 mi away24/7Most reviews
4TopTec Heating, Cooling, Plumbing & Electrical914.8★ (2,018)Libertyville, 6 mi away24/7—
5Allied Air Conditioning & Heating Corp.905.0★ (428)Libertyville, 7 mi away24/7—
6Ireland Heating & Air Conditioning Co.904.9★ (397)Lake Forest, 3 mi away24/7—
7Beck’s Heating and Air Conditioning905.0★ (274)Highwood, 5 mi away24/7—
8Azrikam The Price Is Right Heating & Air Conditioning HVAC905.0★ (697)Northbrook, 11 mi away24/7—
9Herchenbach Mechanical Inc.904.9★ (576)Gurnee, 7 mi away24/7—
10Carefree Comfort, Inc.895.0★ (288)Highland Park, 7 mi away24/7—

The 886 best HVAC contractors in Lake Bluff, ranked

Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.

Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  2. #2 AA Service Co.

    Based in Northbrook, 9 mi away

    91/100CR Score

    Ranked #2 because of its Google rating and availability: 4.9★ from 3,150 Google reviews, open 24/7.

    • 4.9★ from 3,150 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    550 Anthony Trail, Northbrook, IL 60062
    View profile for AA Service Co.(847) 729-7889

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 886 ranked HVAC contractors here; the rest are on their profiles.

HVAC contractors in Lake Bluff, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Legacy Heating & Cooling885.0★ (165)9 mi
27Precision Today Plumbing Heating Cooling Electrical (Miller's Area Heating)884.8★ (986)12 mi
28Aaron & Trecker Heating and Air Conditioning885.0★ (320)13 mi
29Air Kings Heating And Cooling884.9★ (259)9 mi
30American Vintage Home Heating, Cooling & Plumbing884.8★ (2,300)17 mi
31Kern Heating & Cooling Co.884.7★ (1,162)10 mi
32Green Air Care884.6★ (1,545)9 mi
33Intelligent Service: Plumbing, Heating, Cooling & Drain Cleaning884.8★ (1,364)15 mi
34KET Home Services884.9★ (76)3 mi
35Aire Serv of Palatine884.9★ (766)16 mi
36SPG Plumbing, Drain and Sewer Gurnee885.0★ (103)7 mi
37Command Service Center, INC885.0★ (745)19 mi
38Duane Blanton Plumbing, Sewer, Heating & Cooling884.7★ (2,290)15 mi
39Five Star Heating & Air, Inc.874.9★ (1,082)18 mi
40Mr. Heating and Cooling Inc875.0★ (283)15 mi
41All Temp Heating and Air Conditioning874.9★ (2,253)23 mi
42CRNE'S Environmental Control874.9★ (178)9 mi
43Effective Air, Inc.874.9★ (355)13 mi
44Gotsch Heating Ventilation and Air Conditioning LLC875.0★ (40)3 mi
45On The Mark Heating and Air875.0★ (939)22 mi
46AIRTECH PRO Heating, Cooling & Plumbing875.0★ (120)10 mi
47Besco Air Inc.874.9★ (1,342)20 mi
48Allied Air Conditioning & Heating Corp.874.9★ (473)16 mi
49Elite HVACs Heating & Air874.9★ (848)18 mi
50Legendary Service875.0★ (286)16 mi

Also serving Lake Bluff

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.

Unranked HVAC contractors serving Lake Bluff
BusinessGoogle ratingDistance
American Pride Heating & Cooling Inc.1.5★ (2)17 mi
Capitol Energy5.0★ (2)13 mi
Duct Professor Heating & Cooling4.8★ (398)12 mi
Furnace & Heating (NEAR ME)5.0★ (2)9 mi
GO GREEN Heating & Cooling5.0★ (2)5 mi
HeatForce Furnace Repair HVAC5.0★ (2)11 mi
Indoor Weather5.0★ (2)9 mi
Kwik Serv Plumbing, Heating & Cooling4.6★ (697)8 mi
Lucke Plumbing and Heating3.0★ (2)17 mi
OVERALL HVAC LLC.3.0★ (2)10 mi
Positive Heating & Cooling CoIn Lake Bluff
Sebastian’s Heating and Cooling5.0★ (2)14 mi
Tedora Heating & Cooling Repairs4.5★ (2)14 mi
Tem Control HVAC5.0★ (2)10 mi
Thermal Mechanical Inc.3.0★ (2)9 mi
THERMATRONIC INC.5.0★ (2)12 mi
TM HVAC contractor5.0★ (2)14 mi
Triple Tech Services4.8★ (232)9 mi
United Air Control Corp3.0★ (2)9 mi
Weatherwise Heating & Air Conditioning5.0★ (2)9 mi

How much do HVAC contractors cost in Lake Bluff?

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

How much do HVAC contractors cost in Lake Bluff?
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

When to hire an HVAC contractor in Illinois

In Illinois, 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 Lake Bluff HVAC contractors

We scored 886 Lake Bluff HVAC contractors on 8 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. Unknown factors are left out of the score, 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 Lake Bluff data
Reputation35%Bayesian-adjusted Google star ratingMeasured
Credentials15%Active state license 0.6, bond 0.2, workers’ comp 0.2Not yet collected
Review volume10%log10(reviews + 1) against the list maximumMeasured
Recency10%Share of reviews from the last 12 monthsNot yet collected
Availability10%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%Google main category 1.0, business name 0.7, additional category 0.5Measured
Proximity5%1.0 when based in the city, falling to 0 at the trade’s radiusMeasured
Completeness5%Website, photos, description, hours, claimed profile (0.2 each)Measured

HVAC contractors in Lake Bluff: frequently asked questions

Who is the best HVAC contractor in Lake Bluff?

By CR Score, the highest-ranked HVAC contractor in Lake Bluff, IL is Cahill Heating, Cooling, Electric, Plumbing & Sewer with a CR Score of 93/100. It has 5.0★ from 1,064 Google reviews. It is open 24/7. AA Service Co. (#2) and ABC Plumbing, Sewer, Heating, Cooling & Electric (#3) follow. We ranked 886 HVAC contractors on 8 factors, last updated October 22, 2026.

How many HVAC contractors are there in Lake Bluff?

ContractorsRanked ranks 886 HVAC contractors serving Lake Bluff, IL. 1 of them is based in Lake Bluff; 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 Lake Bluff are open 24/7?

391 ranked HVAC contractors in Lake Bluff post 24/7 hours. The highest-ranked are Cahill Heating, Cooling, Electric, Plumbing & Sewer (#1), AA Service Co. (#2) and ABC Plumbing, Sewer, Heating, Cooling & Electric (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which HVAC contractors in Lake Bluff work on weekends?

681 of 886 ranked HVAC contractors post Saturday hours and 545 post Sunday hours. The highest-ranked open Saturdays are Cahill Heating, Cooling, Electric, Plumbing & Sewer (#1), AA Service Co. (#2) and ABC Plumbing, Sewer, Heating, Cooling & Electric (#3). Posted hours are office hours; crews may book weekend jobs separately.

How much does ac replacement cost in Lake Bluff?

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 Lake Bluff. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do Lake Bluff HVAC contractors have?

The median Google rating among 886 rated HVAC contractors in Lake Bluff is 4.9★, with a median of 21 reviews. ABC Plumbing, Sewer, Heating, Cooling & Electric has the most, 22,524 reviews, and ranks #3. 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 Lake Bluff?

In Illinois, 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 does ContractorsRanked rank HVAC contractors?

Each HVAC contractor gets a 0–100 CR Score from 8 published factors, led by reputation (35%), credentials (15%), review volume (10%) and recency (10%). Factors we cannot measure are left out, not scored as zero. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.

Update log for Lake Bluff

  1. October 2026: CR Scores recalculated for 886 hvac contractors serving Lake Bluff.
  2. October 2026: 4 duplicate listings merged.

More HVAC contractors and Lake Bluff pages

Other trades in Lake Bluff