HVAC Services in Londonderry, NH
21 HVAC contractors found
Nelson Electric & Air
“All 95 reviews award 5 stars, with customers consistently praising transparent communication, tidy work…”
Little Bee Home Inspections
“All five sampled reviewers award 5-star ratings, with four explicitly naming Scott as the inspecting…”
Best Handyman New Hampshire
“Eight reviewers collectively award five stars, with six specifically mentioning responsive communication and…”
Tom's Mechanical Services llc
“Eight of twelve reviewers specifically praise the same-day or emergency response capability, with three…”
Mammoth Crane
“One reviewer awarded a 5-star rating, highlighting the team's willingness to tackle projects other…”
Southern New Hampshire Plumbing and Heating
“256 five-star reviewers praise the company's same-day emergency response and transparent upfront pricing.…”
Rob Roy Mechanical
“Every reviewer awarded a perfect 5-star rating, with customers particularly praising pricing transparency,…”
Crossroads Contracting
“Every customer review carries a 5-star rating, with 69 separate evaluations establishing strong consensus.…”
603 Chimney & Dryer Vent
“Fourteen reviewers mention punctual arrival and efficient work execution as standout qualities. Six customers…”
Home Services at The Home Depot
“All three reviews rate the contractor favorably, with two five-star ratings citing thorough consultation and…”
Daigle Pool Servicing Co., Inc.
“Two of three accessible reviews award 5 stars, with both mentioning problem resolution after installation.…”
Metal Works Inc
“One of five reviewers awarded 2 stars citing contract term disputes and payment deadline conflicts, while the…”
Bosch Thermotechnology Corp.
“Three of five detailed reviews award single stars, citing unresponsive customer service, troubleshooting…”
N.E. RV Inspections
“Two of three reviewers awarded five stars, praising thorough inspections and cost savings, while the single…”
ALC Design
“Both reviews posted rating scores and mention responsiveness as a strength. One five-star review emphasizes…”
HVAC Service Costs in Londonderry, NH
Pricing ranges across all HVAC services offered in Londonderry.
| Service | Typical Range | Price Points |
|---|---|---|
| AC Repair | $83–$3,080 | 7 items → |
| AC Installation | $168–$22,400 | 8 items → |
| AC Replacement | $2,352–$17,920 | — |
| HVAC Maintenance | $15–$824 | 7 items → |
| HVAC Repair | $83–$3,850 | 7 items → |
| HVAC Service | $76–$15,228 | 6 items → |
| Emergency HVAC | $165–$3,850 | — |
| Commercial HVAC | $2–$88,000 | — |
Prices reflect continental metro averages based on HomeAdvisor and Angi published cost data. Last updated: April 2026.
HVAC in Londonderry, NH: What Homeowners Should Know
Winter temperatures in Londonderry dip to 20 F while summers climb to 82 F, creating a nine-month heating season that runs from October through April. The climate demands robust heating systems and reliable cooling during humid summer stretches. Thirty-eight hvac companies Londonderry serve the community, earning an average 3.8 rating across more than four thousand consumer reviews.
Cost figures in the region range from $2 for minor service calls to $88,000 for complete system replacements, reflecting the span between basic repairs and full installations including heat pumps. New Hampshire requires contractors to hold either a Class A, Class B, or Class C license from the Office of Professional Licensure and Certification, with experience thresholds ranging from two to six years depending on the classification. These credentials ensure technicians working in southern New Hampshire neighborhoods possess demonstrated competency for both residential and commercial projects.
Customer feedback highlights several standout performers. Technicians Chuck and Justin at Southern New Hampshire Plumbing and Heating earn repeat mentions for same-day emergency response and upfront pricing clarity. Rob Roy Mechanical draws praise for detailed pre-work estimates and proactive arrival time communication. Nelson Electric & Air maintains a perfect 5.0 rating across ninety-five reviews, with customers consistently noting tidy work sites and fair pricing as Mike and Michael handle service calls. These patterns reflect what local homeowners value most when selecting the best hvac Londonderry contractors for their properties.