HVAC Services in Brentwood, NH
4 HVAC contractors found
Courtesy Heating and Cooling
5.0(23)
“All eight named reviewers awarded five-star ratings, with Curtis specifically mentioned in six of those eight…”
22 Peabody Dr, Brentwood, NH 03833
Diamond Mechanical LLC
4.5(85)
24/7
“Of four detailed reviews examined, two praised responsive same-day service and thorough explanations while…”
388 NH-125 Suite 1, Brentwood, NH 03833
HVAC Service Costs in Brentwood, NH
Pricing ranges across all HVAC services offered in Brentwood.
| Service | Typical Range | Price Points |
|---|---|---|
| AC Repair | $83–$3,080 | — |
| AC Installation | $168–$22,400 | — |
| AC Replacement | $2,352–$17,920 | — |
| HVAC Maintenance | $15–$824 | — |
| HVAC Repair | $83–$3,850 | — |
| HVAC Service | $76–$15,228 | — |
| 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.
Frequently Asked Questions
Among 4 HVAC contractors serving Brentwood, the top-rated providers average 4.3★ across 119 reviews. The highest-ranked companies on this page are sorted by a combination of rating and review volume, so established contractors with consistent quality appear first. Check reviews, licensing, and response time to pick the right fit for your situation.