5 Emergency HVAC Contractors in Dover, NH

4.7 avg rating
760 total reviews2 offer 24/7 service

Top-Rated Emergency HVAC Contractors in Dover

#1

Mr. Electric of Southeast NH

4.9(391 reviews)
24/7 Highly Rated

391 reviews yield a 4.9-star average, with Sarah mentioned by name in multiple positive accounts for her diagnostic clarity and calming presence. Reviewers…

155A Portland Ave, Dover, NH 03820
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#2

High Ground Service Pros - Plumbers Electricians & HVAC Technicians

4.9(140 reviews)
24/7 Highly Rated

Same-day emergency response appears repeatedly across reviews, with Nick and Zachery specifically praised for diagnostic skill, clear communication, and honest…

418 Dover Point Rd Unit 3, Dover, NH 03820
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#3

Pro HVAC LLC

4.7(90 reviews)

Four of five detailed reviews praise professional conduct and technical skill, while one single-star review cites operational inconsistencies including missed…

32 Crosby Rd, Dover, NH 03820
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All Emergency HVAC Contractors (5 total)

Hart Plumbing,Heating and air-conditioning

4.3(83)

Four reviewers specifically praise fair pricing and absence of unnecessary upselling, with three highlighting…

165 Industrial Pk Rd, Dover, NH 03820
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Martel Plumbing, Heating & Air Conditioning Inc

4.7(56)

Fifty-six reviewers awarded Martel a 4.7 average rating, with every detailed review awarding five stars.…

59 Old Rochester Rd, Dover, NH 03820
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Emergency HVAC Costs in Dover

After-hours, weekend, and holiday HVAC service pricing in Dover. Rates are typically 1.5-2x standard.

ServiceLowAverageHigh
After-hours service call (weekday night)
Base fee before labor
$165$220$330
Weekend service call
$193$248$358
Holiday / major holiday call
$248$330$495
Emergency labor (hourly)
1.5-2x standard hourly rate
$176$226$275
Emergency repair total (typical)
Repair + after-hours surcharge
$330$770$1,320
Emergency repair (major)
Compressor, heat exchanger failures
$1,320$2,420$3,850

Prices reflect continental metro averages compiled from published industry cost guides, contractor surveys, and regional labor data. Last updated: April 2026.

Emergency HVAC in Dover, NH: What to Expect

Dover sits in southern New Hampshire where winters drop to 20 F with steady snow and summers climb to 82 F with real humidity. The heating season stretches from October through April, making reliable warmth non-negotiable for months on end. When a furnace fails at midnight or a heat pump quits during a cold snap, residents need Emergency HVAC in Dover without delay. Six contractors serve this area, collectively holding a 4.7-star average across nearly a thousand reviews.

After-hours service calls on weeknight evenings run $165 to $330, while weekend service calls range from $193 to $358. Holiday calls, including major holidays, cost between $248 and $495. These figures reflect the premium for immediate response outside standard business hours. In New Hampshire, HVAC contractors must hold a valid Class A, Class B, or Class C license from the state Office of Professional Licensure and Certification, proving they have met competency standards for safe installation and repair work.

Customer reviews repeatedly highlight specific technicians who make a difference. Sarah with Mr. Electric of Southeast NH earns mention for diagnostic clarity and a calming presence that puts homeowners at ease, with many reviewers noting same-day service. Nick and Zachery at High Ground Service Pros receive praise for honest option presentation and clear communication alongside their same-day emergency response. Pro HVAC LLC holds a 4.7 average with several detailed reviews praising professional conduct and technical skill. Across these accounts, response time and honest communication emerge as the qualities Dover residents value most when systems fail.

Frequently Asked Questions

Emergency HVAC in Dover adds a premium of $100-$300 to the standard service call fee, with labor billed at 1.5-2x normal rates. After-hours weekday calls typically run $150-$300 before repairs, weekends $175-$325, and holidays $225-$450. Total emergency repair costs usually land between $300-$1,200.