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ContractorsRanked

Best HVAC Contractors in Galesburg, IL (2026)

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

The short answer

  1. 1

    Best overall in Galesburg: Doug Miller Heating and Cooling, CR Score 63/100; 4.8★ from 37 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): Basio Plumbing, Heating & Air, posts 24/7 hours; ranked #2 of 17.

  3. 4

    Most-reviewed: Neil Thomas Plumbing & Heating Inc., 83 Google reviews at 4.4★, the most of 17 ranked; ranked #4.

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

17 Galesburg HVAC contractors are ranked here by CR Score, from ten published factors. 4 are open 24/7, 7 open Saturdays and 6 open Sundays, based on posted hours. The median Google rating is 4.6★ across 17 rated businesses.

Top 10 HVAC contractors in Galesburg at a glance

Top 10 HVAC contractors in Galesburg at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Doug Miller Heating and Cooling634.8★ (37)Galesburg24/7Overall
2Basio Plumbing, Heating & Air614.4★ (77)Galesburg24/7Emergencies
3Lambasio Incorporated614.6★ (81)Galesburg——
4Neil Thomas Plumbing & Heating Inc.604.4★ (83)Galesburg—Most reviews
5Maska Heating and Cooling604.8★ (21)Galesburg——
6AMP Companies, Inc.594.6★ (38)Galesburg——
7Ring Sheet Metal Heating & Air Conditioning595.0★ (9)GalesburgSat · Sun—
8Clinton HVAC & Plumbing594.4★ (19)Clinton, 12 mi away24/7—
9McConnell Heating & Cooling LLC584.4★ (7)GalesburgSat · Sun—
10John's Plumbing Heating & Cooling574.4★ (25)Galesburg——

The 17 best HVAC contractors in Galesburg, ranked

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

  3. #3 Lambasio Incorporated

    Based in Galesburg

    61/100CR Score

    Ranked #3 because of its Google rating and trade focus: 4.6★ from 81 Google reviews, listed on Google as “Air conditioning contractor”.

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

    • 4.6★ from 81 Google reviews
    Hours
    Mon–Fri 7:30 AM–4:30 PM · Sat–Sun closed
    Address
    401 E Berrien St, Galesburg, IL 61401
    View profile for Lambasio Incorporated(309) 341-1802

  6. #6 AMP Companies, Inc.

    Based in Galesburg

    59/100CR Score

    Ranked #6 because of its Google rating and trade focus: 4.6★ from 38 Google reviews, listed on Google as “HVAC contractor”.

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

    • 4.6★ from 38 Google reviews
    Hours
    Mon–Fri 7 AM–3:30 PM · Sat–Sun closed
    Address
    3075 Grand Ave, Galesburg, IL 61401
    View profile for AMP Companies, Inc.(309) 343-3532

  8. #8 Clinton HVAC & Plumbing

    Based in Clinton, 12 mi away

    59/100CR Score

    Ranked #8 because of its Google rating and trade focus: 4.4★ from 19 Google reviews, listed on Google as “HVAC contractor”.

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

    • 4.4★ from 19 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for Clinton HVAC & Plumbing(563) 607-5917

  12. #12 IHC Heating & Cooling LLC

    Based in Monmouth, 15 mi away

    57/100CR Score

    Ranked #12 because of its Google rating and trade focus: 5.0★ from 43 Google reviews, listed on Google as “HVAC contractor”.

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

    • 5.0★ from 43 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    410 N Main St, Monmouth, IL 61462
    View profile for IHC Heating & Cooling LLC(309) 734-3354

  14. #14 Hawk Heating and Cooling

    Based in Monmouth, 15 mi away

    52/100CR Score

    Ranked #14 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Air conditioning contractor”.

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

    • 5.0★ from 3 Google reviews
    Hours
    Mon–Sun 7 AM–8 PM
    Address
    829 N E St, Monmouth, IL 61462
    View profile for Hawk Heating and Cooling(309) 734-2338

  16. #16 La Familia HVAC, LLC

    Based in Benton Harbor, 8 mi away

    52/100CR Score

    Ranked #16 because of its Google rating and trade focus: 4.4★ from 7 Google reviews, listed on Google as “HVAC contractor”.

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

    • 4.4★ from 7 Google reviews
    Hours
    Mon–Fri 8 AM–4 PM · Sat–Sun closed
    View profile for La Familia HVAC, LLC(574) 386-0495

  17. #17 All Systems Go Heating & Air

    Based in Monmouth, 15 mi away

    49/100CR Score

    Ranked #17 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “HVAC contractor”.

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

    • 5.0★ from 4 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    813 N B St, Monmouth, IL 61462
    View profile for All Systems Go Heating & Air(309) 734-2647

Also serving Galesburg

7 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 Galesburg
BusinessGoogle ratingDistance
American Standard Heating & Condition5.0★ (1)15 mi
Danes Plumbing & Heating5.0★ (1)15 mi
Hein Construction Co Inc5.0★ (2)In Galesburg
Joe Clark Heating & Cooling LLC3.5★ (2)15 mi
Johnson Brothers Plumbing4.3★ (7)In Galesburg
Skinner Plumbing & Heating5.0★ (2)In Galesburg
Yeager & Sons Heating & SheetIn Galesburg

How much do HVAC contractors cost in Galesburg?

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

How much do HVAC contractors cost in Galesburg?
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 Galesburg HVAC contractors

We scored 17 Galesburg 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 Galesburg 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 Galesburg: frequently asked questions

Who is the best HVAC contractor in Galesburg?

By CR Score, the highest-ranked HVAC contractor in Galesburg, IL is Doug Miller Heating and Cooling with a CR Score of 63/100. It has 4.8★ from 37 Google reviews. It is open 24/7. Basio Plumbing, Heating & Air (#2) and Lambasio Incorporated (#3) follow. We ranked 17 HVAC contractors on ten factors, last updated October 22, 2026.

How many HVAC contractors are there in Galesburg?

ContractorsRanked ranks 17 HVAC contractors serving Galesburg, IL. 10 of them are based in Galesburg; the rest serve it from nearby towns. Another 7 within 25 mi are listed but not ranked yet. Counts are as of October 2026.

Which HVAC contractors in Galesburg are open 24/7?

4 ranked HVAC contractors in Galesburg post 24/7 hours. The highest-ranked are Doug Miller Heating and Cooling (#1), Basio Plumbing, Heating & Air (#2) and Clinton HVAC & Plumbing (#8). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which HVAC contractors in Galesburg work on weekends?

7 of 17 ranked HVAC contractors post Saturday hours and 6 post Sunday hours. The highest-ranked open Saturdays are Doug Miller Heating and Cooling (#1), Basio Plumbing, Heating & Air (#2) and Ring Sheet Metal Heating & Air Conditioning (#7). Posted hours are office hours; crews may book weekend jobs separately.

How much does ac replacement cost in Galesburg?

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

What Google rating do Galesburg HVAC contractors have?

The median Google rating among 17 rated HVAC contractors in Galesburg is 4.6★, with a median of 25 reviews. Neil Thomas Plumbing & Heating Inc. has the most, 83 reviews, and ranks #4. 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 Galesburg?

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 ten published factors, led by reputation (25%), credentials (15%), review volume (10%) and trade focus (10%). A business with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.

Update log for Galesburg

  1. October 2026: CR Scores recalculated for 17 hvac contractors serving Galesburg.

More HVAC contractors and Galesburg pages