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DE directory

Generator installation in Delaware

DE · 48 researched · 36 dedicated pages

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

48
Researched
36
Dedicated pages
3
Repeated signal
State market notes

Installer landscape

Delaware (Mid-Atlantic) is a mixed standby market. Fuel mix is split: utility gas 41.3%, electric 39.1%, propane 10.4% (ACS 2024). Metro jobs often look like natural-gas installs; rural counties more often need propane. In 2024, Delaware electricity customers averaged 1.9 hours without power (well below the 10.2-hour U.S. average; EIA Electric Power Annual Table 11.3). Dominant drivers in this research pass: coastal storms, severe. This directory lists 49 researched installers with website generator signal (36 with a dedicated generator page, 3 with repeated signal, 10 with at least one clear mention). That is a thin market by national listing volume, ranking #42 of 50. Top city clusters in the directory: Wilmington (8), Millsboro (4), Townsend (4), Middletown (3).

Fuel, codes, and cost context

Quotes diverge with fuel path: gas-line work in town, tank packages outside it. Compare itemized scopes, not headline brand prices. 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 We do not publish fabricated statewide average install prices.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

Confirm electrical (and gas/propane, if used) credentials with the local AHJ; statewide licensing scope for residential standby work was not fully verified in this research pass. Ask who pulls the electrical and fuel permits, how they size the unit, and how warranty service works after install. Use the 49 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 DE 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.

Wilmington41Newark41Rehoboth Beach40Dover48
Job type in DE

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

Whole-house 29Service 5
Brand signal in DE

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

Generac dealers & installers 11Kohler 4

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All Delaware 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 Delaware?
48 installers show standby generator signal on their websites across 19 cities in Delaware. Of those, 36 have a dedicated generator page, 3 have repeated signal, and 9 have at least one mention worth checking.
What cities have the most installers in Delaware?
Wilmington (8), Millsboro (4), Townsend (4), Middletown (3), Dover (3).
What fuel should I expect for a standby generator in Delaware?
ACS 2024 heating fuel mix: utility gas 41.3%, propane 10.4%, electric 39.1%, fuel oil 6.8%. 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.