95/100CR Score
Ranked #1 because of its Google rating and availability: 5.0★ from 125 Google reviews, open 24/7.
- 5.0★ from 125 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 7214 Oak Creek Rd, Duncan, OK 73533
Best HVAC Contractors in Duncan, OK (2026)
17 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Duncan: Stephens Electrical Services and Hometech solutions hvac, CR Score 95/100; 5.0★ from 125 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): HOMETECH SOLUTIONS LLC, posts 24/7 hours; ranked #2 of 17.
- 5
Most-reviewed: Davis Air Conditioning, 300 Google reviews at 4.8★, the most of 17 ranked; ranked #5.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
17 Duncan HVAC contractors are ranked here by CR Score, from 8 published factors. 6 are open 24/7, 10 open Saturdays and 9 open Sundays, based on posted hours. The median Google rating is 4.8★ across 17 rated businesses.
Top 10 HVAC contractors in Duncan at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Stephens Electrical Services and Hometech solutions hvac | 95 | 5.0★ (125) | Duncan | 24/7 | Overall |
| 2 | HOMETECH SOLUTIONS LLC | 87 | 5.0★ (69) | Lawton, 21 mi away | 24/7 | Emergencies |
| 3 | The Right Flow Heating & Air | 87 | 5.0★ (33) | Lawton, 14 mi away | 24/7 | — |
| 4 | Henderson Services | 87 | 4.8★ (16) | Duncan | 24/7 | — |
| 5 | Davis Air Conditioning | 85 | 4.8★ (300) | Duncan | — | Most reviews |
| 6 | Curtis Refrigeration | 84 | 5.0★ (4) | Duncan | 24/7 | — |
| 7 | Climate Pros Heat and Air, LLC | 83 | 5.0★ (13) | Duncan | Sat · Sun | — |
| 8 | Climate Pros | 83 | 4.7★ (12) | Duncan | Sat · Sun | — |
| 9 | DeHart Air Conditioning | 81 | 4.7★ (109) | Duncan | — | — |
| 10 | RC's Hvac & Mech | 81 | 5.0★ (19) | Duncan | Sat | — |
The 17 best HVAC contractors in Duncan, ranked
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Based in Lawton, 21 mi away
87/100CR ScoreRanked #2 because of its Google rating and availability: 5.0★ from 69 Google reviews, open 24/7.
- 5.0★ from 69 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Lawton, 14 mi away
87/100CR ScoreRanked #3 because of its Google rating and availability: 5.0★ from 33 Google reviews, open 24/7.
- 5.0★ from 33 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Duncan
87/100CR ScoreRanked #4 because of its Google rating and availability: 4.8★ from 16 Google reviews, open 24/7.
- 4.8★ from 16 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Duncan
85/100CR ScoreRanked #5 because of its Google rating and review volume: 4.8★ from 300 Google reviews, the most Google reviews on this list (300).
- 4.8★ from 300 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 399 S Hwy 81, Duncan, OK 73533
Based in Duncan
84/100CR ScoreRanked #6 because of its Google rating and availability: 5.0★ from 4 Google reviews, open 24/7.
- 5.0★ from 4 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Duncan
83/100CR ScoreRanked #7 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–Sun 7 AM–6 PM
#8 Climate Pros
Based in Duncan
83/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.7★ from 12 Google reviews, listed on Google as “Air conditioning contractor”.
- 4.7★ from 12 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat 8 AM–7 PM · Sun 8 AM–6 PM
- Address
- Duncan, OK 73534
Based in Duncan
81/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.7★ from 109 Google reviews, listed on Google as “HVAC contractor”.
- 4.7★ from 109 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 5755 US-81, Duncan, OK 73533
#10 RC's Hvac & Mech
Based in Duncan
81/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 19 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 19 Google reviews
- Hours
- Mon–Sat 8 AM–5 PM · Sun closed
Based in Duncan
78/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.8★ from 20 Google reviews, listed on Google as “Air conditioning contractor”.
- 4.8★ from 20 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 710 W Walnut Ave, Duncan, OK 73533
Based in Duncan
75/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.0★ from 10 Google reviews, listed on Google as “HVAC contractor”.
- 4.0★ from 10 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 4904 US-81, Marlow, OK 73055
Based in Lawton, 25 mi away
74/100CR ScoreRanked #13 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 4 Google reviews
- Hours
- Mon–Fri 7 AM–8 PM · Sat 9 AM–8 PM · Sun 9 AM–7 PM
- Address
- 226 SE Park Ave, Lawton, OK 73501
#14 Comfort King
Based in Duncan
74/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.0★ from 12 Google reviews, listed on Google as “HVAC contractor”.
- 4.0★ from 12 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 3206 S McKinley Rd, Central High, OK 73055
Based in Duncan
74/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.4★ from 8 Google reviews, listed on Google as “HVAC contractor”.
- 4.4★ from 8 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 1655 W Camelback Rd, Duncan, OK 73533
Based in Lawton, 25 mi away
73/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 31 Google reviews, listed on Google as “Air conditioning contractor”.
- 5.0★ from 31 Google reviews
- Hours
- Mon–Fri 7 AM–5 PM · Sat–Sun closed
Based in Lawton, 21 mi away
70/100CR ScoreRanked #17 because of its Google rating and availability: 3.0★ from 26 Google reviews, open 24/7.
- 3.0★ from 26 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2 James St, Elgin, OK 73538
Also serving Duncan
9 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 |
|---|---|---|
| Borski Air Conditioning | 5.0★ (2) | In Duncan |
| Chasteen Plumbing | 4.6★ (9) | In Duncan |
| Dismuke Plumbing | 4.0★ (46) | In Duncan |
| H-N-H Heating & Air Solution, LLC | In Duncan | |
| H-N-H Heating & Air Solution, LLC | In Duncan | |
| Harvey Jung's Plumbing & Heating | In Duncan | |
| Justus Plumbing | 4.4★ (52) | In Duncan |
| Oklahoma Plumbing & Mechanical Services LLC | In Duncan | |
| Simms Refrigeration & Repair | 5.0★ (1) | In Duncan |
How much do HVAC contractors cost in Duncan?
National price ranges in USD, not adjusted for Duncan. 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 Oklahoma
In Oklahoma, Oklahoma Construction Industries Board licenses Mechanical licenses.
- 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 Oklahoma
In Oklahoma, air conditioning calls peak in the hottest summer months. Spring is the easiest time to book a tune-up or replacement, before the first heat wave.
How we ranked Duncan HVAC contractors
We scored 17 Duncan HVAC contractors on 8 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. Unknown factors are left out of the score, 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 Duncan data |
|---|---|---|---|
| Reputation | 35% | Bayesian-adjusted Google star rating | Measured |
| Credentials | 15% | Active state license 0.6, bond 0.2, workers’ comp 0.2 | Not yet collected |
| Review volume | 10% | log10(reviews + 1) against the list maximum | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 10% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | Google main category 1.0, business name 0.7, additional category 0.5 | Measured |
| Proximity | 5% | 1.0 when based in the city, falling to 0 at the trade’s radius | Measured |
| Completeness | 5% | Website, photos, description, hours, claimed profile (0.2 each) | Measured |
HVAC contractors in Duncan: frequently asked questions
Who is the best HVAC contractor in Duncan?
By CR Score, the highest-ranked HVAC contractor in Duncan, OK is Stephens Electrical Services and Hometech solutions hvac with a CR Score of 95/100. It has 5.0★ from 125 Google reviews. It is open 24/7. HOMETECH SOLUTIONS LLC (#2) and The Right Flow Heating & Air (#3) follow. We ranked 17 HVAC contractors on 8 factors, last updated October 22, 2026.
How many HVAC contractors are there in Duncan?
ContractorsRanked ranks 17 HVAC contractors serving Duncan, OK. 12 of them are based in Duncan; the rest serve it from nearby towns. Another 9 within 25 mi are listed but not ranked yet. Counts are as of October 2026.
Which HVAC contractors in Duncan are open 24/7?
6 ranked HVAC contractors in Duncan post 24/7 hours. The highest-ranked are Stephens Electrical Services and Hometech solutions hvac (#1), HOMETECH SOLUTIONS LLC (#2) and The Right Flow Heating & Air (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which HVAC contractors in Duncan work on weekends?
10 of 17 ranked HVAC contractors post Saturday hours and 9 post Sunday hours. The highest-ranked open Saturdays are Stephens Electrical Services and Hometech solutions hvac (#1), HOMETECH SOLUTIONS LLC (#2) and The Right Flow Heating & Air (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does ac replacement cost in Duncan?
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 Duncan. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Duncan HVAC contractors have?
The median Google rating among 17 rated HVAC contractors in Duncan is 4.8★, with a median of 19 reviews. Davis Air Conditioning has the most, 300 reviews, and ranks #5. 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 Duncan?
In Oklahoma, air conditioning calls peak in the hottest summer months. Spring is the easiest time to book a tune-up or replacement, before the first heat wave.
How does ContractorsRanked rank HVAC contractors?
Each HVAC contractor gets a 0–100 CR Score from 8 published factors, led by reputation (35%), credentials (15%), review volume (10%) and recency (10%). Factors we cannot measure are left out, not scored as zero. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.
Update log for Duncan
- October 2026: CR Scores recalculated for 17 hvac contractors serving Duncan.
More HVAC contractors and Duncan pages
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