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Best HVAC Contractors in California, MD (2026)

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

The short answer

  1. 1

    Best overall in California: Boothe's Heating, Air, Plumbing, Drains, & Electrical, CR Score 68/100; 4.9★ from 4,356 Google reviews; open 24/7.

  2. 3

    Best for emergencies (open 24/7): Consider it Done Home Services LLC, posts 24/7 hours; ranked #3 of 25.

  3. 7

    Most-reviewed: Chimney Pro - Air Duct and Dryer Vent Cleaning Services, 981 Google reviews at 4.8★, the most of 25 ranked after Boothe's Heating, Air, Plumbing, Drains, & Electrical; ranked #7.

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

25 California HVAC contractors are ranked here by CR Score, from ten published factors. 6 are open 24/7, 11 open Saturdays and 7 open Sundays, based on posted hours. The median Google rating is 4.9★ across 25 rated businesses.

Top 10 HVAC contractors in California at a glance

Top 10 HVAC contractors in California at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Boothe's Heating, Air, Plumbing, Drains, & Electrical684.9★ (4,356)California24/7Overall
2Hall's HVAC604.9★ (182)CaliforniaSat—
3Consider it Done Home Services LLC605.0★ (16)California24/7Emergencies
4Johnson's Heating & Air604.8★ (19)California24/7—
5Winters Heating & Cooling604.9★ (437)California——
6Wathen Enterprises, LLC605.0★ (89)CaliforniaSat—
7Chimney Pro - Air Duct and Dryer Vent Cleaning Services594.8★ (981)Columbia, 10 mi awaySatMost reviews
8R.E. Graves Heating & Air Conditioning594.9★ (374)California——
9Stark Mechanical llc584.9★ (221)La Plata, 14 mi awaySat · Sun—
10Sta So Cool LLC585.0★ (109)California——

The 25 best HVAC contractors in California, ranked

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

  1. Based in California

    60/100CR Score

    Ranked #2 because of its Google rating and trade focus: 4.9★ from 182 Google reviews, listed on Google as “HVAC contractor”.

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

    • 4.9★ from 182 Google reviews
    Hours
    Mon–Sat 6:30 AM–5 PM · Sun closed
    Address
    26005 Point Lookout Rd, Leonardtown, MD 20650
  2. Based in California

    60/100CR Score

    Ranked #4 because of its Google rating and trade focus: 4.8★ from 19 Google reviews, listed on Google as “Heating contractor”.

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

    • 4.8★ from 19 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    22909 Cedar Lane Rd, Leonardtown, MD 20650
  3. Based in California

    60/100CR Score

    Ranked #5 because of its Google rating and trade focus: 4.9★ from 437 Google reviews, listed on Google as “HVAC contractor”.

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

    • 4.9★ from 437 Google reviews
    Hours
    Mon–Fri 7:30 AM–5 PM · Sat–Sun closed
    Address
    22100 Point Lookout Rd, Leonardtown, MD 20650
  4. Based in California

    60/100CR Score

    Ranked #6 because of its Google rating and trade focus: 5.0★ from 89 Google reviews, listed on Google as “HVAC contractor”.

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

    • 5.0★ from 89 Google reviews
    Hours
    Mon–Fri 5 AM–4:30 PM · Sat 5 AM–1 PM · Sun closed
    Address
    42602 Clover Hill Rd, Hollywood, MD 20636
  5. Based in La Plata, 14 mi away

    58/100CR Score

    Ranked #9 because of its Google rating and trade focus: 4.9★ from 221 Google reviews, listed on Google as “HVAC contractor”.

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

    • 4.9★ from 221 Google reviews
    Hours
    Mon–Fri 7:30 AM–5 PM · Sat–Sun 8 AM–12 PM
  6. Based in California

    58/100CR Score

    Ranked #10 because of its Google rating and trade focus: 5.0★ from 109 Google reviews, listed on Google as “HVAC contractor”.

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

    • 5.0★ from 109 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    Address
    22932 S Pembrook Dr, Hollywood, MD 20636
  7. Based in California

    57/100CR Score

    Ranked #11 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “HVAC contractor”.

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

    • 5.0★ from 18 Google reviews
    Address
    Culpepper Way, Leonardtown, MD 20650
  8. Based in California

    57/100CR Score

    Ranked #12 because of its Google rating and trade focus: 5.0★ from 16 Google reviews, listed on Google as “HVAC contractor”.

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

    • 5.0★ from 16 Google reviews
    Address
    26262 Three Notch Rd a1, Mechanicsville, MD 20659
  9. Based in California

    55/100CR Score

    Ranked #15 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.

    • 5.0★ from 12 Google reviews
    Hours
    Mon–Fri 7 AM–6 PM · Sat–Sun closed
  10. Based in Dale City, 21 mi away

    54/100CR Score

    Ranked #16 because of its Google rating and trade focus: 4.9★ from 35 Google reviews, listed on Google as “HVAC contractor”.

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

    • 4.9★ from 35 Google reviews
    Hours
    Mon–Fri 7 AM–9 PM · Sat–Sun 8 AM–8 PM
  11. Based in California

    54/100CR Score

    Ranked #17 because of its Google rating and trade focus: 4.3★ from 17 Google reviews, listed on Google as “HVAC contractor”.

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

    • 4.3★ from 17 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
  12. Based in Mount Vernon, 21 mi away

    54/100CR Score

    Ranked #18 because of its Google rating and trade focus: 4.6★ from 10 Google reviews, listed on Google as “HVAC contractor”.

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

    • 4.6★ from 10 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
  13. Based in California

    50/100CR Score

    Ranked #21 because of its Google rating and trade focus: 4.7★ from 15 Google reviews, listed on Google as “Bathroom remodeler”.

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

    • 4.7★ from 15 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    43480 Drum Cliff Rd, Hollywood, MD 20636
  14. Based in St. Charles, 18 mi away

    49/100CR Score

    Ranked #22 because of its Google rating and trade focus: 4.3★ from 18 Google reviews, listed on Google as “HVAC contractor”.

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

    • 4.3★ from 18 Google reviews
    Hours
    Mon–Fri 8 AM–4:30 PM · Sat–Sun closed
  15. #23 MBM Co

    Based in Waldorf, 23 mi away

    49/100CR Score

    Ranked #23 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Air conditioning contractor”.

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

    • 5.0★ from 3 Google reviews
    Address
    15262 Truman Manor Ln, Waldorf, MD 20601
  16. Based in Waldorf, 24 mi away

    48/100CR Score

    Ranked #24 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Heating contractor”.

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

    • 5.0★ from 3 Google reviews
    Address
    5275 Stowe Ln, Waldorf, MD 20601
  17. Based in St. Charles, 20 mi away

    47/100CR Score

    Ranked #25 because of its Google rating and trade focus: 2.3★ from 6 Google reviews, listed on Google as “HVAC contractor”.

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

    • 2.3★ from 6 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed

Also serving California

19 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.

How much do HVAC contractors cost in California?

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

How much do HVAC contractors cost in California?
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

How to check an HVAC contractor's license in Maryland

In Maryland, Maryland State Board of Heating, Ventilation, Air-Conditioning and Refrigeration Contractors licenses Heating, ventilation, air conditioning and refrigeration work.

  1. Check that the status is active and the name matches the contract or truck.
  2. 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 Maryland

HVAC demand peaks in summer for cooling and in winter for heating. Spring and fall are the easiest times to book maintenance or a replacement.

How we ranked California HVAC contractors

We scored 25 California 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 California 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 California: frequently asked questions

Who is the best HVAC contractor in California?

By CR Score, the highest-ranked HVAC contractor in California, MD is Boothe's Heating, Air, Plumbing, Drains, & Electrical with a CR Score of 68/100. It has 4.9★ from 4,356 Google reviews. It is open 24/7. Hall's HVAC (#2) and Consider it Done Home Services LLC (#3) follow. We ranked 25 HVAC contractors on ten factors, last updated October 22, 2026.

How many HVAC contractors are there in California?

ContractorsRanked ranks 25 HVAC contractors serving California, MD. 15 of them are based in California; the rest serve it from nearby towns. Another 19 within 25 mi are listed but not ranked yet. Counts are as of October 2026.

Which HVAC contractors in California are open 24/7?

6 ranked HVAC contractors in California post 24/7 hours. The highest-ranked are Boothe's Heating, Air, Plumbing, Drains, & Electrical (#1), Consider it Done Home Services LLC (#3) and Johnson's Heating & Air (#4). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which HVAC contractors in California work on weekends?

11 of 25 ranked HVAC contractors post Saturday hours and 7 post Sunday hours. The highest-ranked open Saturdays are Boothe's Heating, Air, Plumbing, Drains, & Electrical (#1), Hall's HVAC (#2) and Consider it Done Home Services LLC (#3). Posted hours are office hours; crews may book weekend jobs separately.

How do I check an HVAC contractor's license in Maryland?

In Maryland, Maryland State Board of Heating, Ventilation, Air-Conditioning and Refrigeration Contractors handles licensing and covers Heating, ventilation, air conditioning and refrigeration work.

How much does ac replacement cost in California?

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

What Google rating do California HVAC contractors have?

The median Google rating among 25 rated HVAC contractors in California is 4.9★, with a median of 18 reviews. Boothe's Heating, Air, Plumbing, Drains, & Electrical has the most, 4,356 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 California?

HVAC demand peaks in summer for cooling and in winter for heating. Spring and fall are the easiest times to book maintenance or a replacement.

Update log for California

  1. October 2026: CR Scores recalculated for 25 hvac contractors serving California.

More HVAC contractors and California pages

Other trades in California