Plumber Salary in Delaware (2026)
The average Plumber in Delaware earns around $72,000/year. After taxes, your estimated take-home is $56,766/year ($4,731/month).
Take-Home Pay Breakdown
| Category | Amount |
|---|---|
Annual Take-Home Pay | $56,766 |
Monthly Take-Home Pay | $4,731 |
Biweekly Take-Home Pay | $2,183 |
Hourly Take-Home Pay based on 2,080 hrs/year | $27/hr |
Federal Tax | $7,010 |
State Tax | $2,716 |
FICA Taxes | $5,508 |
Effective Tax Rate total taxes ÷ gross salary | 21.16% |
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Working overtime? The 2025 OBBBA deduction may save you up to $12,500 on federal tax. Open the No Tax on Overtime calculator →
1099 contract work or side gigs? Self-employment tax adds 15.3% on top. Open the 1099 tax calculator →
Plumber Salary Ranges in Delaware
Not all Plumbers earn the same — not even close
Delaware's plumber market is anchored by DE chemical + pharma industrial plumbing (DuPont + Chemours + Corteva + AstraZeneca + the substantial DE chemical industry industrial plumbing + Edge Moor + Deepwater + Newport + Wilmington chemical facility MEP + AstraZeneca Wilmington pharma facility MEP), UA Plumbers and Pipefitters Local 74 Wilmington + the substantial DE UA collective bargaining, DE hospital MEP + medical gas (ChristianaCare + Nemours Children's Hospital + Beebe Healthcare + Bayhealth + Saint Francis + the substantial DE hospital MEP), Dover AFB + 436th Airlift Wing cleared facility plumbing, Port of Wilmington + the substantial DE port + maritime plumbing, DE residential + service plumbing (post-2020 Wilmington + Newark + Dover + Lewes + Rehoboth + the substantial post-2020 NYC-NJ-PA migration driving substantial DE residential construction), plus DE Division of Professional Regulation + the substantial DE apprenticeship.
Sr Foreman / General Foreman (DuPont / Chemours / Dover AFB)
$108,000–$172,000+ OT
Sr foreman at DuPont + Chemours + AstraZeneca + Dover AFB · TS/SCI premium
Sr Journeyman UA Local 74 Wilmington
$85,000–$132,000+ OT
UA Local 74 Wilmington · top-of-scale + benefits · the substantial DE UA
Sr Pipefitter / Welder (Industrial / Chemical)
$98,000–$155,000+ OT
Pipefitter at DuPont + Chemours + AstraZeneca · NCCER + the substantial
Sr Service / Commercial Plumber
$78,000–$118,000+ OT
Service + commercial · Wilmington + Newark + Dover · post-2020 DE residential
Sr Mechanical / HVAC-R Plumber (Hospital)
$88,000–$132,000+ OT
HVAC-R + medical gas at ChristianaCare + Nemours + Beebe + Bayhealth
Sr Federal Plumber (Dover AFB)
$85,000–$132,000+ OT
Dover AFB + 436th Airlift Wing · federal civilian + cleared · TS/SCI
Sr Self-Employed / Owner (Wilmington / Lewes)
$78,000–$235,000+
Owner-operator Wilmington + Lewes + Rehoboth · post-2020 DE residential
Sr Industrial Plumber (Chemical / Pharma)
$98,000–$155,000+ OT
DuPont + Chemours + AstraZeneca + Corteva · cleared industrial
Mid-Career Journeyman (3-6 yrs)
$68,000–$95,000+ OT
Mid-career at DE major employers · transitioning to top-of-scale
Apprentice (Year 1-5 UA)
$45,000–$72,000+ OT
UA Local 74 apprentice · 50-95% of journeyman scale · DE DPR
Worth knowing: DE chemical + pharma industrial plumbing (DuPont + Chemours + AstraZeneca) + UA Local 74 Wilmington + DE hospital MEP (ChristianaCare + Nemours) + Dover AFB cleared facility tetra-anchor is one of the country's distinctive concentrated US single-state heritage chemical + pharma industrial + UA-unionized + hospital MEP + cleared airlift plumbing cluster and a feature most national plumber surveys understate for DE. DE chemical + pharma industrial plumbing (DuPont + Chemours + Corteva + AstraZeneca + the substantial DE chemical industry industrial plumbing + Edge Moor + Deepwater + Newport + Wilmington chemical facility MEP + AstraZeneca Wilmington pharma facility MEP). UA Plumbers and Pipefitters Local 74 Wilmington (the substantial DE UA collective bargaining). DE hospital MEP + medical gas (ChristianaCare + Nemours Children's Hospital + Beebe Healthcare + Bayhealth + Saint Francis). Dover AFB + 436th Airlift Wing cleared facility plumbing. Port of Wilmington + the substantial DE port + maritime plumbing. DE residential + service plumbing (post-2020 NYC-NJ-PA migration driving substantial Wilmington + Lewes + Rehoboth residential construction). The 2025 No Tax on Overtime federal deduction applies through 2028. DE NOT a RTW state + DE progressive top 6.6% anchor the DE plumber proposition.
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More on Delaware
Salaries by profession, top-paying roles by industry, and an economic breakdown for Delaware in 2026.
Tax brackets, standard deductions, and take-home estimates for Delaware in 2026.
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