Home / Heat pump installation cost / Merrimack, NH
Merrimack · Hillsborough County · labor +19.8%
Heat pump installation cost in Merrimack, NH
A 2,000 sq ft home heat pump in ducted air-source heat pump comes to about $11,000 to $22,000 in Merrimack once the national installed price is adjusted for what HVAC mechanics and installers earn locally. The town's fee schedule names this work puts the permit at from $110 for a job at the midpoint.
Figures checked October 20, 2026 · sources
- 1Ducted air-source, 2,000 sq ft home $11,000–$22,000
- 2Labor index +19.8% vs US
- 3Merrimack permit from $110
Change size or material All Merrimack projects
Heat pump installation prices in Merrimack by material
Each row starts from the installed price per home published in a national cost guide, then moves only the labor part of that price by Merrimack's labor index. For 2,000 sq ft home:
| Material | National | Merrimack | Midpoint |
|---|---|---|---|
| Ducted air-source heat pump | $10,000–$20,000 | $11,000–$22,000 | $16,500 |
| Ductless mini-split heat pump | $2,000–$17,000 | $2,200–$18,700 | $10,450 |
The ducted row is priced from the guide's table for a 2,000 sq ft home (3 tons). The ductless row is the guide's range for one system of any size, from a single head to several zones, which is why it is so wide.
By size
| Home size (sq ft) | Merrimack estimate | Permit at midpoint |
|---|---|---|
| 1,000 sq ft home | $6,600–$9,350 | from $110 |
| 1,500 sq ft home | $8,800–$11,550 | from $110 |
| 2,000 sq ft home | $11,000–$22,000 | from $110 |
| 2,500 sq ft home | $13,200–$24,200 | from $110 |
| 3,000 sq ft home | $19,800–$27,500 | from $110 |
| 3,500 sq ft home | $22,000–$30,750 | from $110 |
| 4,000 sq ft home | $24,200–$35,150 | from $110 |
Ducted air-source heat pump.
Permit fee in Merrimack
Named in the schedule The fee schedule names this kind of work.
“Furnace, Boiler, Mini Splits, etc. (total system change) $75.00”
“HVAC Duct or AC line to Furnace, Mini Splits, etc. $75.00”
“Application fee: Applies to all permits below (non-refundable) $35.00”
Applied to a 2,000 sq ft home heat pump estimated at $11,000 to $22,000, that gives from $110 to from $110, about 0.67% of the midpoint price. Among the 14 towns on this site whose schedules cover this work, Merrimack ranks 10 from the cheapest; Fitzwilliam is lowest at $50 and Newport highest at $202.81 for its own midpoint job.
Schedule: Town of Merrimack, NH Code Enforcement & Inspection Fee Schedule (effective January 1, 2025). The building department decides whether a permit is required and what valuation it accepts; the national guide puts heat pump permits at $50–$300.
Why Merrimack differs from the national price
Merrimack is in Hillsborough County, which the Bureau of Labor Statistics counts in the Manchester-Nashua, NH metropolitan area. The median wage there for hVAC mechanics and installers is $35.14 an hour against $29.33 nationally, so the labor part of a national price is scaled by 1.198 (+19.8%).
On this job the labor portion is $5,000 to $10,000 at national rates and $6,000 to $12,000 at Merrimack rates, so the midpoint rises $1,500 above the national figure. Against the New Hampshire statewide wage it is $90 lower. Materials are priced at the national figure: shingle, lumber and equipment prices are set by distributors, not by a town.
A second published benchmark points the same way for the region: Remodeling's 2025 Cost vs Value report prices its “HVAC Conversion, Electrification” job at $19,500 nationally and $22,200 in New England. Those are fixed specification jobs, not per-square-foot prices, so they are shown for comparison only.
Merrimack at a glance
Merrimack had 29,325 residents in the state's 2025 estimate, up 15% from 25,494 in 2010, faster than the state's 7.5% over the same years. Its density of 909 people per square mile puts it 6 of 19 among the towns on this site.
88.9% of Merrimack's occupied homes are lived in by their owners, more than the 72.8% statewide, and the median owner-occupied home is valued at $458,600 (New Hampshire: $402,500). The midpoint estimate for this heat pump works out to 3.6% of that median value.
Before asking for quotes
- The Merrimack building department can say for free whether this job needs a permit and what it will cost; the schedule linked above is its own published document.
- Written quotes that list the same scope (area, material line, removal, disposal, permit) can be compared line by line; the quote comparison guide walks through it with these numbers.
- A quote far below $11,000 or above $22,000 is not wrong in itself, but it is worth asking what it includes or leaves out.
Other projects in Merrimack
Deck building cost in Merrimack
Heat pump installation in nearby towns
| Town | Labor area | Estimate | Permit |
|---|---|---|---|
| Hudson | Manchester-Nashua | $11,000–$22,000 | $75 |
| Manchester | Manchester-Nashua | $11,000–$22,000 | from $55 |
| New Ipswich | Manchester-Nashua | $11,000–$22,000 | from $100 |
| Bow | Central NH | $10,200–$20,400 | $75 |
| Conway | Northern NH | $10,950–$21,900 | $75 |
More: all heat pump installation town pages · permit fees by town · labor costs in New Hampshire
Sources
- Installed price: HomeGuide: Heat pump cost (Oct 30, 2025) — “Air-source (ducted) $10,000 – $25,000+ (includes air handler installation)”.
- Labor portion: Filterbuy: Heat pump installation cost guide (Mar 4, 2026) — “labor typically accounts for 40% to 60% of the total installation cost.” (midpoint, 50%, used).
- Labor index: O*NET OnLine, Heating, Air Conditioning, and Refrigeration Mechanics and Installers (49-9021.00), New Hampshire local wages; area definitions: BLS, May 2025 Metropolitan and Nonmetropolitan Area Definitions.
- Permit: Town of Merrimack, NH Code Enforcement & Inspection Fee Schedule.
- Population: NH Office of Planning and Development, 2025 Population Estimates of New Hampshire Cities and Towns (published July 17, 2026); housing: Census QuickFacts, Merrimack.
All figures checked October 20, 2026. Estimates are ranges built from published averages, not quotes; a contractor's price depends on the house, access, the season and the scope written into the quote. Cost by Town does not perform or arrange work.