14 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Eureka: Evans Mechanical, CR Score 63/100; 4.9★ from 940 Google reviews.
Best for emergencies (open 24/7): Mapleservice Plumbing & Heating, posts 24/7 hours; ranked #3 of 14.
Most-reviewed: Greenwired - Solar and HVAC Company, 78 Google reviews at 4.9★, the most of 14 ranked after Evans Mechanical; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
14 Eureka HVAC contractors are ranked here by CR Score, from ten published factors. 1 is open 24/7, 2 open Saturdays and 2 open Sundays, based on posted hours. The median Google rating is 4.9★ across 14 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Evans Mechanical | 63 | 4.9★ (940) | Eureka | — | Overall |
| 2 | California Heating | 58 | 4.6★ (51) | Arcata, 9 mi away | Sat · Sun | — |
| 3 | Mapleservice Plumbing & Heating | 57 | 4.5★ (24) | Eureka | 24/7 | Emergencies |
| 4 | Greenwired - Solar and HVAC Company | 56 | 4.9★ (78) | Arcata, 8 mi away | — | Most reviews |
| 5 | Mac's Refrigeration Services | 56 | 4.3★ (7) | Eureka | — | — |
| 6 | Humboldt Mechanical Solutions | 55 | 5.0★ (49) | Arcata, 10 mi away | — | — |
| 7 | Bob's Heating and Air Solutions, Inc. | 53 | 5.0★ (23) | Arcata, 12 mi away | — | — |
| 8 | Excel Heating and Cooling | 53 | 5.0★ (12) | McKinleyville, 10 mi away | — | — |
| 9 | Scurfield Electric Heating & Solar | 52 | 4.7★ (60) | Arcata, 6 mi away | — | — |
| 10 | Precision Heating and Air Conditioning | 52 | 5.0★ (13) | Fortuna, 14 mi away | — | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and review volume: 4.9★ from 940 Google reviews, the most in Eureka.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Arcata, 9 mi away
Ranked #2 because of its Google rating and trade focus: 4.6★ from 51 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Eureka
Ranked #3 because of its Google rating and trade focus: 4.5★ from 24 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Arcata, 8 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 78 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Eureka
Ranked #5 because of its Google rating and trade focus: 4.3★ from 7 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Arcata, 10 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 49 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Arcata, 12 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in McKinleyville, 10 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 12 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Arcata, 6 mi away
Ranked #9 because of its Google rating and trade focus: 4.7★ from 60 Google reviews, listed on Google as “Electrical installation service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Fortuna, 14 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Arcata, 10 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Fortuna, 18 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Arcata, 6 mi away
Ranked #13 because of its Google rating and trade focus: 4.7★ from 12 Google reviews, listed on Google as “General contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Fortuna, 14 mi away
Ranked #14 because of its Google rating and trade focus: 3.7★ from 3 Google reviews, listed on Google as “Sheet metal contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
4 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.
| Business | Google rating | Distance |
|---|---|---|
| Gary's Heating & AC | 10 mi | |
| K C Mechanical | 5.0★ (1) | In Eureka |
| Niekrasz Plumbing, Inc. | 3.0★ (2) | In Eureka |
| Spaulding Construction Services | 5.0★ (2) | In Eureka |
National price ranges in USD, not adjusted for Eureka. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| AC replacement | $3,887 | $5,978 | $8,073 | Per system, installed (unit plus labor); typical range of customer-reported jobs. US national range | October 2026 |
| Furnace replacement | $2,823 | $4,814 | $6,896 | Per system, installed; typical range of customer-reported jobs. US national range | October 2026 |
In California, Contractors State License Board (CSLB) licenses C-20 Warm-Air Heating, Ventilating and Air-Conditioning contractor license.
Jobs of $1,000 or more in labor and materials (from January 1, 2025).
No chip usually means we have not matched a state record yet. Check the lookup yourself before you hire.
Guide checked October 2026. How we verify licenses
California's HVAC demand peaks during summer heat waves and the first cold snaps. Spring and fall are the easiest times to book maintenance.
We scored 14 Eureka 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.
| Factor | Weight | Computed from | In Eureka data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |