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ContractorsRanked

Best HVAC Contractors in Ithaca, NY (2026)

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

The short answer

  1. 1

    Best overall in Ithaca: Kozy Heating & Air Conditioning, CR Score 61/100; 4.5★ from 38 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): Eco-Electrical Contractors llc., posts 24/7 hours; ranked #2 of 23.

  3. 17

    Most-reviewed: JMS Plumbing, 741 Google reviews at 4.9★, the most of 23 ranked; ranked #17.

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

23 Ithaca HVAC contractors are ranked here by CR Score, from ten published factors. 9 are open 24/7, 10 open Saturdays and 9 open Sundays, based on posted hours. The median Google rating is 4.4★ across 23 rated businesses.

Top 10 HVAC contractors in Ithaca at a glance

Top 10 HVAC contractors in Ithaca at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Kozy Heating & Air Conditioning614.5★ (38)Ithaca24/7Overall
2Eco-Electrical Contractors llc.604.8★ (16)Ithaca24/7Emergencies
3ANC Heating & Air Conditioning594.6★ (16)Ithaca24/7—
4Climate Tech NY585.0★ (64)Rego Park, 21 mi away24/7—
5LaMorte Electric Heating and Cooling574.8★ (64)South Hill, 2 mi away——
6Ithaca Construction574.8★ (78)Ithaca24/7—
7Atlas Heat Pumps565.0★ (31)Ithaca——
8E & V Energy564.2★ (113)Ithaca——
9Bill's Plumbing Heating & Air554.4★ (42)Horseheads, 22 mi away24/7—
10B&B HVAC/PLUMBING INC.554.7★ (6)Ithaca——

The 23 best HVAC contractors in Ithaca, ranked

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

  4. #4 Climate Tech NY

    Based in Rego Park, 21 mi away

    58/100CR Score

    Ranked #4 because of its Google rating and trade focus: 5.0★ from 64 Google reviews, listed on Google as “HVAC contractor”.

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

    • 5.0★ from 64 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for Climate Tech NY(718) 997-6600

  6. #6 Ithaca Construction

    Based in Ithaca

    57/100CR Score

    Ranked #6 because of its Google rating and review volume: 4.8★ from 78 Google reviews.

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

    • 4.8★ from 78 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1808 Hanshaw Rd suite b, Ithaca, NY 14850
    View profile for Ithaca Construction(607) 342-0530

  7. #7 Atlas Heat Pumps

    Based in Ithaca

    56/100CR Score

    Ranked #7 because of its Google rating and trade focus: 5.0★ from 31 Google reviews, listed on Google as “HVAC contractor”.

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

    • 5.0★ from 31 Google reviews
    Hours
    Mon–Fri 8:30 AM–4:30 PM · Sat–Sun closed
    View profile for Atlas Heat Pumps(607) 351-6468

  8. #8 E & V Energy

    Based in Ithaca

    56/100CR Score

    Ranked #8 because of its Google rating and trade focus: 4.2★ from 113 Google reviews, listed on Google as “HVAC contractor”.

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

    • 4.2★ from 113 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    1126 W Danby Rd, Newfield, NY 14867
    View profile for E & V Energy(607) 241-1010

  10. #10 B&B HVAC/PLUMBING INC.

    Based in Ithaca

    55/100CR Score

    Ranked #10 because of its Google rating and trade focus: 4.7★ from 6 Google reviews, listed on Google as “HVAC contractor”.

    Based on 7 of 10 factors; credentials, recency and availability not yet collected.

    • 4.7★ from 6 Google reviews
    Address
    2 Hallwoods Rd, Ithaca, NY 14850
    View profile for B&B HVAC/PLUMBING INC.(607) 216-5362

  11. #11 Tompkins Community Action

    Based in Ithaca

    55/100CR Score

    Ranked #11 because of its Google rating and trade focus: 4.1★ from 70 Google reviews, listed on Google as “HVAC contractor”.

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

    • 4.1★ from 70 Google reviews
    Hours
    Mon–Fri 9 AM–4:30 PM · Sat–Sun closed
    Address
    701 Spencer Rd, Ithaca, NY 14850
    View profile for Tompkins Community Action(607) 273-8816

  12. #12 Superior Split Pumps LLC

    Based in South Hill, 12 mi away

    54/100CR Score

    Ranked #12 because of its Google rating and trade focus: 5.0★ from 37 Google reviews, listed on Google as “HVAC contractor”.

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

    • 5.0★ from 37 Google reviews
    Hours
    Mon–Fri 10 AM–5 PM · Sat–Sun closed
    View profile for Superior Split Pumps LLC(607) 379-2969

  13. #13 Hsc Associates Heating & AC

    Based in Ithaca

    53/100CR Score

    Ranked #13 because of its Google rating and trade focus: 3.6★ from 34 Google reviews, listed on Google as “Heating contractor”.

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

    • 3.6★ from 34 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    Address
    618 W Buffalo St, Ithaca, NY 14850
    View profile for Hsc Associates Heating & AC(607) 273-2180

  16. #16 Absolutely Specialized

    Based in Ithaca

    52/100CR Score

    Ranked #16 because of its Google rating and trade focus: 4.3★ from 6 Google reviews, listed on Google as “HVAC contractor”.

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

    • 4.3★ from 6 Google reviews
    Hours
    Mon–Fri 10 AM–4 PM · Sat–Sun closed
    Address
    37 Midline Rd, Slaterville Springs, NY 14881
    View profile for Absolutely Specialized(607) 499-4502

  17. #17 JMS Plumbing

    Based in Cortland, 20 mi away

    52/100CR Score

    Ranked #17 because of its Google rating and review volume: 4.9★ from 741 Google reviews, the most in Ithaca.

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

    • 4.9★ from 741 Google reviews
    Hours
    Mon–Fri 8 AM–4 PM · Sat–Sun closed
    Address
    60 Miller St, Cortland, NY 13045
    View profile for JMS Plumbing(607) 327-0225

  18. #18 M & M Plumbing & Heating

    Based in South Hill, 6 mi away

    52/100CR Score

    Ranked #18 because of its Google rating and trade focus: 4.4★ from 11 Google reviews, listed on Google as “Plumber”.

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

    • 4.4★ from 11 Google reviews
    Hours
    Mon–Sun 9 AM–5 PM
    Address
    6 Beaver Creek Rd, Brooktondale, NY 14817
    View profile for M & M Plumbing & Heating(607) 539-7677

  19. #19 E & V Energy

    Based in Cortland, 21 mi away

    51/100CR Score

    Ranked #19 because of its Google rating and trade focus: 4.3★ from 104 Google reviews, listed on Google as “HVAC contractor”.

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

    • 4.3★ from 104 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    3951 US-11, Cortland, NY 13045
    View profile for E & V Energy(607) 753-0567

  22. #22 Gokey & Compton LLC

    Based in Big Flats, 18 mi away

    49/100CR Score

    Ranked #22 because of its Google rating and trade focus: 3.9★ from 29 Google reviews, listed on Google as “HVAC contractor”.

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

    • 3.9★ from 29 Google reviews
    Hours
    Mon–Fri 8 AM–4 PM · Sat–Sun closed
    View profile for Gokey & Compton LLC(607) 210-4175

Also serving Ithaca

14 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 Ithaca
BusinessGoogle ratingDistance
123 Heating & Cooling Pros5.0★ (1)18 mi
Advantage Heating & Plumbing5.0★ (1)16 mi
anc heating and air conditioning ithaca5.0★ (2)In Ithaca
Comfort home 365 inc24 mi
Comfort Windows5.0★ (1)In Ithaca
Custom Plumbing & Heating General Contracting5.0★ (2)20 mi
Grant Plumbing & Heating5.0★ (1)20 mi
Hrunning Water Inc2.5★ (2)In Ithaca
Ithaca Cortland Plumbing Heating5.0★ (2)19 mi
K & B Plumbing & Heating5.0★ (1)19 mi
Miller Street Mechanicals20 mi
Mirabito Energy Products21 mi
NEPA Residential Maintenance Support LLC6 mi
Precision Heating & AC21 mi

How much do HVAC contractors cost in Ithaca?

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

How much do HVAC contractors cost in Ithaca?
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 New York

In New York, 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 Ithaca HVAC contractors

We scored 23 Ithaca 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 Ithaca 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 Ithaca: frequently asked questions

Who is the best HVAC contractor in Ithaca?

By CR Score, the highest-ranked HVAC contractor in Ithaca, NY is Kozy Heating & Air Conditioning with a CR Score of 61/100. It has 4.5★ from 38 Google reviews. It is open 24/7. Eco-Electrical Contractors llc. (#2) and ANC Heating & Air Conditioning (#3) follow. We ranked 23 HVAC contractors on ten factors, last updated October 22, 2026.

How many HVAC contractors are there in Ithaca?

ContractorsRanked ranks 23 HVAC contractors serving Ithaca, NY. 12 of them are based in Ithaca; the rest serve it from nearby towns. Another 14 within 25 mi are listed but not ranked yet. Counts are as of October 2026.

Which HVAC contractors in Ithaca are open 24/7?

9 ranked HVAC contractors in Ithaca post 24/7 hours. The highest-ranked are Kozy Heating & Air Conditioning (#1), Eco-Electrical Contractors llc. (#2) and ANC Heating & Air Conditioning (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which HVAC contractors in Ithaca work on weekends?

10 of 23 ranked HVAC contractors post Saturday hours and 9 post Sunday hours. The highest-ranked open Saturdays are Kozy Heating & Air Conditioning (#1), Eco-Electrical Contractors llc. (#2) and ANC Heating & Air Conditioning (#3). Posted hours are office hours; crews may book weekend jobs separately.

How much does ac replacement cost in Ithaca?

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

What Google rating do Ithaca HVAC contractors have?

The median Google rating among 23 rated HVAC contractors in Ithaca is 4.4★, with a median of 34 reviews. JMS Plumbing has the most, 741 reviews, and ranks #17. 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 Ithaca?

In New York, 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 Ithaca

  1. October 2026: CR Scores recalculated for 23 hvac contractors serving Ithaca.

More HVAC contractors and Ithaca pages

Other trades in Ithaca