62/100CR Score
Ranked #1 because of its Google rating and review volume: 4.4★ from 33 Google reviews, the most in Williams.
- 4.4★ from 33 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Best HVAC Contractors in Williams, CA (2026)
5 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Williams: Valley Air & Electric, CR Score 62/100; 4.4★ from 33 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Fire & Ice Heating & Air Conditioning, posts 24/7 hours; ranked #2 of 5.
- 2
Most-reviewed: Fire & Ice Heating & Air Conditioning, 27 Google reviews at 4.4★, the most of 5 ranked after Valley Air & Electric; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
5 Williams HVAC contractors are ranked here by CR Score, from ten published factors. 2 are open 24/7, 4 open Saturdays and 1 open Sundays, based on posted hours. The median Google rating is 4.8★ across 5 rated businesses.
Top 5 HVAC contractors in Williams at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Valley Air & Electric | 62 | 4.4★ (33) | Linda, 14 mi away | 24/7 | Overall |
| 2 | Fire & Ice Heating & Air Conditioning | 61 | 4.4★ (27) | Colusa, 9 mi away | 24/7 | Emergencies, Most reviews |
| 3 | Mr Heating & Air Conditioning | 60 | 5.0★ (13) | Williams | Sat | — |
| 4 | APXG Heating and Air Conditioning | 58 | 5.0★ (7) | Williams | Sat | — |
| 5 | At Your Service Heating & Cooling | 54 | 4.8★ (10) | Linda, 15 mi away | — | — |
The 5 best HVAC contractors in Williams, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Based in Colusa, 9 mi away
61/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.4★ from 27 Google reviews, listed on Google as “Air conditioning contractor”.
- 4.4★ from 27 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 229 E Oak St, Colusa, CA 95932
Based in Williams
60/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “Air conditioning contractor”.
- 5.0★ from 13 Google reviews
- Hours
- Mon–Sat 7 AM–4:30 PM · Sun closed
Based in Williams
58/100CR ScoreRanked #4 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 7 Google reviews
- Hours
- Mon–Sat 8 AM–6 PM · Sun closed
Based in Linda, 15 mi away
54/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.8★ from 10 Google reviews, listed on Google as “Air conditioning repair service”.
- 4.8★ from 10 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
How much do HVAC contractors cost in Williams?
National price ranges in USD, not adjusted for Williams. 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 |
How to check an HVAC contractor's license in California
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).
- Search the business name or license number on the Contractors State License Board (CSLB) license lookup.
- Check that the status is active and the name matches the contract or truck.
- Ask for proof of insurance before work starts.
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
When to hire an HVAC contractor in California
California's HVAC demand peaks during summer heat waves and the first cold snaps. Spring and fall are the easiest times to book maintenance.
How we ranked Williams HVAC contractors
We scored 5 Williams 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 Williams 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 |
HVAC contractors in Williams: frequently asked questions
Who is the best HVAC contractor in Williams?
By CR Score, the highest-ranked HVAC contractor in Williams, CA is Valley Air & Electric with a CR Score of 62/100. It has 4.4★ from 33 Google reviews. It is open 24/7. Fire & Ice Heating & Air Conditioning (#2) and Mr Heating & Air Conditioning (#3) follow. We ranked 5 HVAC contractors on ten factors, last updated October 22, 2026.
How many HVAC contractors are there in Williams?
ContractorsRanked ranks 5 HVAC contractors serving Williams, CA. 2 of them are based in Williams; the rest serve it from nearby towns. Counts are as of October 2026.
Which HVAC contractors in Williams are open 24/7?
2 ranked HVAC contractors in Williams post 24/7 hours. The highest-ranked are Valley Air & Electric (#1) and Fire & Ice Heating & Air Conditioning (#2). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which HVAC contractors in Williams work on weekends?
4 of 5 ranked HVAC contractors post Saturday hours and 1 post Sunday hours. The highest-ranked open Saturdays are Valley Air & Electric (#1), Fire & Ice Heating & Air Conditioning (#2) and Mr Heating & Air Conditioning (#3). Posted hours are office hours; crews may book weekend jobs separately.
How do I check an HVAC contractor's license in California?
In California, Contractors State License Board (CSLB) handles licensing and covers C-20 Warm-Air Heating, Ventilating and Air-Conditioning contractor license. Search the business or license number at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/CheckLicense.aspx. Jobs of $1,000 or more in labor and materials (from January 1, 2025).
How much does ac replacement cost in Williams?
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 Williams. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Williams HVAC contractors have?
The median Google rating among 5 rated HVAC contractors in Williams is 4.8★, with a median of 13 reviews. Valley Air & Electric has the most, 33 reviews, and ranks #1. 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 Williams?
California's HVAC demand peaks during summer heat waves and the first cold snaps. Spring and fall are the easiest times to book maintenance.
Update log for Williams
- October 2026: CR Scores recalculated for 5 hvac contractors serving Williams.
- October 2026: 1 duplicate listing merged.
More HVAC contractors and Williams pages
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