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NH directory

Generator installation in New Hampshire

NH · 145 researched · 87 dedicated pages

145 standby generator installers with website signal in New Hampshire, whatever brand they carry. Sorted by generator-specific review count, then website signal.

145
Researched
87
Dedicated pages
13
Repeated signal
State market notes

Installer landscape

New Hampshire (Northern New England) is a propane or electric first standby market. Fuel oil still heats 37.0% of homes and utility gas only 22.2% (ACS 2024), so a standby install often forces a new fuel decision, usually propane (20.4% already heat that way). In 2024, New Hampshire electricity customers averaged 15.4 hours without power (above the 10.2-hour U.S. average; EIA Electric Power Annual Table 11.3). Dominant drivers in this research pass: ice, nor'easters, tree fall. This directory lists 147 researched installers with website generator signal (89 with a dedicated generator page, 13 with repeated signal, 45 with at least one clear mention). That is a moderate market by national listing volume, ranking #28 of 50. Top city clusters in the directory: Nashua (8), Derry (5), Brentwood (4), Hudson (4).

Fuel, codes, and cost context

Budget for propane tank, pad, and refill logistics in addition to the electrical package; gas-line savings rarely apply. NEC edition in effect in this research pass (verified as of August 2026): 2023. We do not publish fabricated statewide average install prices.

Before you call

New Hampshire combines high outage duration (15.4 hours SAIDI in 2024) with a propane-and-oil heating mix (20.4% propane, 37.0% fuel oil). Tank sizing and refill logistics usually matter more than meter capacity. Use the 147 researched listings below as a starting point, not an endorsement. Verify licensing, insurance, references, and recent standby work yourself.

Fuel and outage figures sourced from ACS 2024 and EIA 2024; NEC and licensing notes verified as of 2026-08-07. Not legal advice. Confirm with your AHJ.

Search near your NH ZIP

If the state list is too broad, enter your ZIP and sort by distance.

Browse by metrowithin 75 miles

Each metro page lists installers with an office within 75 miles. Many shops travel for jobs, so the count includes nearby counties, not just city-limits addresses.

Portsmouth133Manchester140Nashua132Lebanon117Concord141
Job type in NH

Narrow by whole-house / standby work or service and maintenance signal.

Whole-house 93Service 22
Brand signal in NH

State pages for installers whose websites mention a brand you already have in mind. Brand mention is not dealer certification.

Generac dealers & installers 43Kohler 20Briggs & Stratton 12

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All New Hampshire installers

Every installer we found in this view. Open a profile for website signal, reviews, and contact paths.

Straight answers

Common questions

How many generator installers are in New Hampshire?
145 installers show standby generator signal on their websites across 66 cities in New Hampshire. Of those, 87 have a dedicated generator page, 13 have repeated signal, and 45 have at least one mention worth checking.
What cities have the most installers in New Hampshire?
Nashua (8), Derry (5), Brentwood (4), Hudson (4), Hampstead (4).
What fuel should I expect for a standby generator in New Hampshire?
ACS 2024 heating fuel mix: utility gas 22.2%, propane 20.4%, electric 11.9%, fuel oil 37%. That mix predicts whether most installs tap a gas meter or need a propane tank. Confirm fuel path for your address.
How are these sorted?
Generator-specific review count first (after any featured rows), then website signal, then overall Google review count. Use the left filters to require 1+, 5+, or 10+ generator reviews.
Are these recommendations?
No. Independently researched listings, not endorsements. Use this as a starting point, then check licensing, references, and recent work before you sign.

Looking for first-call questions? Read questions to ask a generator installer. Signal labels mean dedicated generator page, repeated site signal, or generator signal found.