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How do roofers in Delaware get more customers from Google and AI search?

Facts checked November 8, 2026 by Ansh Singh

Short answer: Roofers in Delaware get found online with a website that shows their license number, names the towns they serve such as Wilmington, Dover and Newark, and collects real local reviews. Licensing runs through the Delaware Department of Labor, Division of Industrial Affairs, Office of Contractor Registration. The state had 66 businesses with staff in this Census category in 2022.

Do roofers need a license in Delaware?

In Delaware, the licensing body for this work is Delaware Department of Labor, Division of Industrial Affairs, Office of Contractor Registration.

License or registration types named by the state: Contractor Registration (not a trade license); State business license (Division of Revenue).

• No roofing trade license. Roofing is named as a construction service that must register with the Department of Labor before starting work.
• Registration needs a Delaware business license, and workers' comp and a safety plan if you have employees.
• Local towns may add permits.

Contractor registration in Delaware sits with Delaware Department of Labor, Office of Contractor Registration, plus Division of Revenue business license. No general contractor competency license. Nearly all construction work, including concrete, remodeling and landscaping, must register before starting. Division of Revenue business license is required and was $75 per year in a 2018 tax tip. Renewal is each December 31.

What do homeowners in Delaware’s biggest cities search for?

Google autocomplete for roofer searches in each city (job-seeker searches removed):

Wilmington

• best roofers wilmington de
• do roofers work in the winter
• roofer wilmington de
• roofers wilmington de
• roofers wilmington ohio
• roofing wilmington de
• roofing wilmington delaware
• roofing wilmington ohio

Dover

• dover roofing and brickwork services
• dover roofing and siding
• dover roofing company
• dover roofing contractors llc
• dover roofing llc
• dover roofing llc reviews
• dover roofing reviews
• roofer dover kent

Newark

• best roofers newark
• is it hard to become a roofer
• newark burton roofing
• newark roofing and property maintenance
• newark roofing company
• newark roofing contractors
• newark roofing pros
• residential roofers newark ohio

Middletown

• middletown roofing companies
• middletown roofing reviews
• roofers middletown ohio
• roofing middletown ohio

Milford

• milford roofing companies
• milford roofing salisbury
• milford roofing salisbury reviews
• roofer milford haven
• roofers milford haven
• roofers milford ohio
• roofing milford haven
• roofing milford ohio

Across these cities, the words that come up most are “reviews”, “best” and “residential”.

Source: Google autocomplete suggestions, checked November 9, 2026. Suggestions change over time.

What does a year of roofer work look like in Delaware?

Publish each seasonal page four to six weeks ahead.

Temperatures: NOAA NCEI nClimDiv statewide data. Job column: our planning suggestion, not survey data.

How many roofing contractors compete in Delaware’s main cities?

Competition is tightest around Dover (Kent County), with one business for every 13,556 residents, and loosest around Milford, at one per 21,959.

Source: US Census Bureau, County Business Patterns 2022 and County Population Estimates 2023. Counts businesses with paid employees only.

How many roofing contractors are in Delaware?

The Census Bureau counted 66 businesses with employees in Delaware in 2022, in the category “Roofing contractors”. That ranks Delaware 49th of 50 states, one of the smaller markets, and 0% of the US total. 71% of them have fewer than 10 staff, and 7 have 20 or more.

Together they employ 838 people, with an average yearly payroll of $894,636 per business. The three busiest counties hold 100% of them, so competition is packed into a few places.

With 1,031,890 residents (Census, July 2023), that is one business for every 15,635 people, against 13,628 nationally: more residents per business than the US average, so each business has more homes to serve.

Delaware next to its neighbors

Counties with the most roofing contractors

3 of Delaware’s counties have at least one. Source: US Census Bureau, County Business Patterns 2022.

How big are they?

Businesses by number of employees, 2022: 35 with 1-4 staff, 12 with 5-9 staff, 10 with 10-19 staff, 7 with 20-49 staff.

Where Delaware is growing

New homes and new owners bring new work. Delaware's population changed +4.0% from July 2020 to July 2023. The fastest-growing counties with 50,000 or more people:

• Sussex County: 263,509 people, +10.4% since 2020, 12 roofing contractors
• Kent County: 189,789 people, +4.1% since 2020, 14 roofing contractors
• New Castle County: 578,592 people, +1.3% since 2020, 40 roofing contractors

Source: US Census Bureau, County Population Estimates, Vintage 2023.

Which code applies in Delaware?

Delaware has no single statewide edition of the International Residential Code (IRC). Cities and counties adopt their own, so say which edition applies in the towns you serve.

What should a Delaware roofer website show?

• Your license or registration number where people can see it, even where the state does not require it in ads.
• A service area list that names real counties and towns, for example New Castle County, Kent County and Sussex County.
• Seasonal pages published before April, so they are found when demand starts.
• Real reviews from local jobs, with the town named, and photos of your own work.

Delaware questions

Who licenses roofers in Delaware?

Delaware Department of Labor, Division of Industrial Affairs, Office of Contractor Registration. No roofing trade license. Roofing is named as a construction service that must register with the Department of Labor before starting work. Registration needs a Delaware business license, and workers' comp and a safety plan if you have employees. Local towns may add permits.

How many roofing contractors are there in Delaware?

The US Census Bureau counted 66 businesses with employees in Delaware in 2022 in the category Roofing contractors, and 71% of them have fewer than 10 staff.

Which county in Delaware has the most roofing contractors?

New Castle County, with 40 businesses with employees in 2022 (Census County Business Patterns).

What do people in Wilmington search for when they need a roofer?

Google autocomplete for Wilmington shows searches such as “best roofers wilmington de”, “do roofers work in the winter”, “roofer wilmington de” and “roofers wilmington de”.

When is the busiest season for roofers in Delaware?

Delaware’s statewide average runs from about 35°F in January to about 77°F in July (NOAA, 1991 to 2020).

Sources

• US Census Bureau, County Business Patterns 2022 (state and county files)
• US Census Bureau, City, Town and County Population Estimates, Vintage 2023
• NOAA NCEI, nClimDiv statewide temperature and degree days, 1991 to 2020
• Google autocomplete suggestions for the cities named, checked November 2026
• https://industrialaffairs.delaware.gov/en/knowledgebase-employer/what-construction-services-require-contractor-registration