Last updated 2026-08-19
TL;DR
Delaware has no helical pier board. Install helical pier systems here and you still need a Division of Revenue business license, county building permits, and, for design, a Delaware licensed professional engineer. Job price and calendar time depend on the site. Confirm current license tax items with Revenue and permit steps with New Castle, Kent, or Sussex. No statewide trade card exists for this work.
Is there a helical pier board in Delaware?
No. Delaware runs no helical pier board, and you will never file an application with a pier-specific commission. Foundation work sits under a business license from the Division of Revenue, county building permits, and, when someone is practicing engineering, Title 24 Chapter 28 of the Delaware Code.[2] People keep hunting for a board because neighboring states license contractors by trade. Delaware does not do that for helical pier crews.
That gap surprises a lot of people coming in from the Mid-Atlantic. They expect a trade exam, a bond form with a board seal, and a card they can laminate. What they get is a tax license, a county permit tech, and a PE who either works for them or does not. The paper is real. The myth board is not.
If a salesperson tells you they can "get you on the Delaware helical board," walk. There is nothing to join. What you can confirm, on the public record, is a Division of Revenue license, a county permit number, inspection results, and, if design is involved, a Delaware professional engineer in good standing.[1][2]
Helical pier Delaware work is still construction. It still has to meet the soils and foundations chapter of the building code the county is using. It still has OSHA duties on the rig. None of that creates a pier board.
Do you need a license for helical pier in Delaware?
Yes. Doing business in Delaware means a state business license through the Division of Revenue. You do not need a helical-pier trade license, because the state never created one.[1] Design is a different question. The practice of engineering without a Delaware license is unlawful under Title 24 Chapter 28.[2]
New outfits get this backwards. They spend weeks asking which "pier card" to sit for, then they skip One Stop and start turning steel. Revenue will still want the license. The county will still want a permit. The owner’s lender may still want a PE letter. Those are the gates.
A Delaware business license is an occupational and gross receipts tax item, not a competence exam. Title 30 Chapter 23 is the occupational license chapter. Confirm the current license class, fee, and filing cadence with the Division of Revenue or One Stop before you print invoices. Fees change. I will not invent this year’s number.[1][10]
If you only "help on weekends" and take pay, you are still doing business. Do not hide behind a friend’s license. Counties and owners ask for the name that matches the truck. Mechanics’ lien rights also run through the contractor who actually performed the work, and Chapter 27 of Title 25 is unforgiving if your paperwork is sloppy.[11]
Employees trigger workers’ compensation duties under Title 19 Chapter 23. Confirm coverage rules with the Department of Labor. Solo owner-operators still need to know where they sit. Guessing is how first-year shops get surprised.[9]
Which Delaware agencies actually touch helical pier jobs?
Four places matter. The Division of Revenue licenses the business and collects gross receipts tax. The professional engineers body created in Title 24 Chapter 28 licenses people who practice engineering. New Castle, Kent, and Sussex each run their own building department. DNREC runs sediment and stormwater rules when you disturb enough ground.[2][3][8][10]
There is no fifth agency called the helical pier board. Stop looking for it.
On a typical residential underpinning job the county is the agency you talk to every week. New Castle County Department of Land Use handles building inspections in the north. Kent County Planning Services covers the middle of the state. Sussex County planning and zoning staff cover the beach counties. Each one wants its own permit packet. None of them issue a statewide pier card.[8][13][14]
DNREC enters when earth disturbance hits the state threshold. Delaware sediment and stormwater rules apply at 5,000 square feet of earth disturbance under 7 DE Admin. Code 5101.[3] That is tighter than the federal construction stormwater trigger of 1 acre.[4] A few piers in a backyard usually stay under both lines. A commercial pad or a long grade beam layout may not. Walk the disturbed area before you assume you are exempt.
OSHA is always in the background. 29 CFR 1926.20(b)(1) says, "It shall be the responsibility of the employer to initiate and maintain such programs as may be necessary to comply with this part."[7] Helical work is quieter than driven pile, but it is still construction. Excavation rules in 1926.651 still apply if you open holes or trenches for grade beams and pile caps.[12]
How much does helical pier cost in Delaware?
There is no official Delaware helical pier price list. Counties do not publish unit costs. Revenue does not price steel. Anyone selling you a single statewide number is guessing.
What you can price, line by line, is steel, helices, labor, mobilization, access, cutoff and capping, PE time, permit fees, and the days you sit waiting on inspection. Those inputs move. A tight Wilmington alley is not a Sussex field. A repair under an existing house is not a new commercial pile cap.
I would not buy a national "average cost per pier" calculator and treat it as a Delaware bid. Those blogs mix repair work with new foundations, and they mix 5-foot piers with 40-foot ones. Nobody has good public data on mean helical pier delaware job value. The closest honest method is a takeoff plus current mill prices plus the wage tables you actually pay.
Use the BLS Delaware occupational wage estimates to sanity-check labor, then replace them with your real burdened rate.[15] Pull this year’s numbers. Do not freeze an old blog wage in your spreadsheet.
Permit fees are county-specific and they change. Confirm them on the county portal the week you bid. Same for the Division of Revenue license tax and gross receipts filings. Confirm current GRT treatment for contracting with Revenue. I am not going to invent a rate and watch it rot.[10]
Waste of money: paying a "certification" mill that is not AC358, not a PE stamp, and not a county requirement. Manufacturers train installers. That training can be useful. It is not a Delaware license and it does not set your price.
How long does helical pier take in Delaware?
The steel often goes in fast. The paper does not. A single residential pier can be installed in a short window once the rig is on torque and the head is clear. A whole house or a commercial line of piles is a different day count. Weather, utilities, access, and refusal all stretch the field time.
The calendar most new shops underestimate is permit review, PE turnaround, and inspection scheduling. Those are not statewide clocks. New Castle does not promise Sussex’s queue. Confirm current review and inspection timing with the county that will stamp the card. No article gets to promise your week.[8][13][14]
If the job needs a sediment and stormwater plan, add that loop before you promise a start date.[3] If the structure needs a designed deep foundation, the PE’s schedule is on the critical path.[2] I would rather tell an owner "I will confirm the county’s current inspection lead time" than invent a five-day myth.
Field sequence is simple when the packet is complete. Locate utilities. Set mats. Install to the specified torque and depth. Record every pile. Cut off. Cap. Call the inspection. Leave as-builts that match what is in the ground. The shops that look slow on site are usually missing a sheet, not a gearbox.
Do not bid "two days, no matter what" on a house you have not seen. Clay in New Castle, sand near the coast, and fill lots behave differently. Torque-to-capacity is a field fact, not a brochure.
Do helical pier plans need a Delaware PE stamp?
If someone is practicing engineering on the job, yes, that person needs a Delaware license. Title 24 Chapter 28 is the professional engineers statute. County reviewers routinely want a registered design professional on deep foundations, especially once you leave simple, prescriptive repair details.[2][5]
IBC 2021 Chapter 18 is the soils and foundations chapter that county officials use when they review deep foundation work.[5] Section 1801.1 states, "The provisions of this chapter shall apply to building and foundation systems."[5] Helical piles live in the deep foundations provisions of that chapter. A manufacturer catalog is not a substitute for the code path the official is holding.
I would not stamp my own work if I am not a Delaware PE. I would hire one who actually does geotechnical or structural foundation work, not a distant signer who never sees the torque logs. The cheap stamp is expensive when the inspector rejects the package.
Repair contractors sometimes work from an engineer’s typical detail and a site letter. New structures usually need a designed system. Ask the county, in writing, what they want for the occupancy and the scope you have. Then do that. Do not argue internet folklore at the counter.
Coming from a board-heavy state can confuse this. California helical pier board rules and Illinois helical pier board rules sit in a different licensing culture. Delaware still wants the PE when the work is engineering. It just does not wrap that inside a contractor board.
What permits do Delaware counties want for helical piers?
You pull a building permit in the county where the property sits. Delaware has three county building departments and no statewide helical pier board. Confirm the current application, fee, and inspection list with that county before you bid. Do not reuse a New Castle checklist in Sussex and hope.[8][13][14]
Most packets that clear review without drama include a site plan, the PE drawings or typical details the county asked for, product data tied to an evaluation report, and your business license information. After install they want torque logs, depths, and a final look at the connection to the structure.
| County | Who you actually call | Confirm before you bid |
|---|---|---|
| New Castle | Department of Land Use, Building Inspections | Permit type, PE letter, inspection holds |
| Kent | Department of Planning Services | Residential vs commercial path, fee schedule |
| Sussex | Planning and zoning / building staff | Coastal site rules, inspection request method |
Utility locates are not optional. A helical pile through a service lateral is a bad day. Private locates matter on older lots where the public ticket is thin.
Disturb 5,000 square feet or more and DNREC’s sediment and stormwater plan rules apply on top of the building permit.[3] Federal NPDES construction coverage is a separate 1-acre trigger you still have to watch on larger sites.[4]
I would walk in with fewer pages of marketing and more pages of torque procedure. Permit techs have seen the glossy helix photo. They have not always seen a clean log.
What codes and acceptance criteria apply to helical piers?
Counties apply the building code they have adopted, with local amendments. Deep foundations, including helical piles, sit in IBC Chapter 18.[5] Ask the county which edition is in force on the day you apply. Do not assume last year’s edition is still live.
ICC-ES AC358 is the acceptance criteria document most reviewers know for helical foundation systems and devices.[6] An evaluation report written to AC358 is how a product shows it was tested to a published set of rules. It is not a Delaware license. It does not replace a PE. It does help a plans examiner stop guessing what the shaft and helix are supposed to do.
I treat AC358 reports and mill certs as part of the job file, not as wall art. If the pile in the ground does not match the report, the report is worthless.
OSHA still governs the crew. Beyond the general 1926.20 duty, excavation work around caps and grade beams has to follow 1926.651.[7][12] A helical job with a clean site can still fail an inspection because someone cut an unsupported trench for a bracket.
Waste of money: printing a generic "meets all codes" sticker. Write the edition, the section, the report number, and the PE’s name. That is what a building official can confirm.
What first-year paper does a helical pier outfit actually need?
Start with the Revenue license and the accounts that come with it, including gross receipts filings for contracting. Confirm current forms and due dates on the Division of Revenue gross receipts pages. Do not copy a blog calendar.[1][10]
Employees mean workers’ compensation, a Title 19 issue, not a vibe.[9] General liability is not a substitute. Keep certificates where a county or a GC can get them the same day they ask.
Written contracts, change orders, and a job-specific scope save you when the owner thought you were lifting the whole house and you bid four piers. Mechanics’ lien rights in Title 25 Chapter 27 only help if you can prove who hired you, what you did, and when.[11]
Field paper is the other half. Torque and depth for every pile. Serials or heat numbers if you have them. Photos of the connection. The PE’s letter after the fact, if that was the deal. As-builts that a future excavator can trust.
If you want a folder structure for stamp checklists and bid math, HelicalPath sells a $199 one-time Stamp + Bid-Math Kit at /start. You do not need it to follow this guide. A labeled binder and honest logs already beat most first-year shops.
Skip the framed mission statement. Keep the W-9s, the license PDF, and the inspection card.
How does Delaware compare to states that run a real contractor board?
Delaware is a tax-license plus county-permit state for this trade. It is not a pre-license exam state for helical pier contractors. If you already hold a card in a board state, do not assume that card means anything at a Dover or Georgetown counter.
Connecticut helical pier board rules sit closer to the Northeast contractor culture a lot of crews know. Florida helical pier board rules and Georgia helical pier board rules are built around different contractor practice acts. Colorado helical pier board rules will not tell you what Sussex wants on a Friday inspection.
Use those guides if you work multiple states. Do not paste their bond and exam steps onto a Delaware formation checklist. You will overbuild the file and still miss One Stop.
The common thread is boring. Someone has to be licensed to do business. Someone has to be licensed to practice engineering. Someone has to permit the structure. Delaware just refuses to invent a fourth board with "helical" in the title.
What should you keep so a building official can confirm the facts?
Keep what a stranger can verify without calling you. License record at Revenue. PE license status under Title 24 Chapter 28. Permit number and inspection history at the county. Evaluation report number that matches the product in the ground. Torque log with dates, pile IDs, and final readings.[2][6][8]
I want a job book that still makes sense if the superintendent is out sick. Cover sheet with address and tax parcel. Plan set. Report. Daily notes. Photos. Final letter. Invoice that matches the scope.
Do not store the only copy in a phone that goes in the river. PDF it. Name the files with the street and the date. Counties hate "finalfinal2."
If a dispute turns into a lien question, Chapter 27 is about notice and timing as much as it is about steel.[11] Your clean job book is the exhibit. Your memory of a handshake is not.
What would I actually do if I were starting helical work in Delaware this year?
I would form the entity, then file the business license through official Revenue or One Stop channels the same week. I would not turn a pile until that license exists.[1][10] I would call the county where my first job sits and ask, in writing, what they want for helical underpinning versus new construction.
I would retain a Delaware PE before I print yard signs. I would price PE time into the first ten jobs even if a manufacturer chart makes me feel brave.[2][5] I would buy insurance I can prove, not a binder someone emailed in 2022.
I would train the crew on torque logs until the logs look boring. Boring logs win inspections. Creative logs create affidavits.
I would ignore anyone selling a fake Delaware pier license. I would also ignore anyone promising approval dates they cannot control. Confirm current fees and queues with the agency that collects them. HelicalPath is an independent publisher, not a law firm and not a service company, and this page is a map, not a permit.
Then I would go do the first small, permitted job and keep every sheet. That file is the real board packet Delaware never bothered to print.
Frequently asked questions
Do you need a license for helical pier in Delaware?
You need a Delaware Division of Revenue business license to do business in the state. You do not need a helical-pier trade license, because no such board exists. If you design the system, a Delaware PE license is required under Title 24 Chapter 28. Confirm the current Revenue class and fee before you invoice. County permits are separate from the state license.
How much does helical pier cost in Delaware?
There is no official state price. Job cost is steel, labor, access, PE time, permits, and mobilization, and those inputs change by site. National blog averages mix repair piers with new foundations and are a poor bid tool. Build a takeoff, use current wages from your books or BLS Delaware estimates, and confirm county fees the week you bid.
How long does helical pier take in Delaware?
Installation of one pier can be quick once the rig is set. Whole-house or commercial layouts take longer, and soil, utilities, and access matter. The longer variable is usually permit review, PE turnaround, and inspection scheduling. Confirm current lead times with the county. Nobody can honestly promise your calendar from a statewide article.
Is helical pier work considered engineering in Delaware?
Design of deep foundations is engineering work under Title 24 Chapter 28 when it takes professional judgment, calculation, and responsible charge. Installation labor is construction. Many counties still want a PE involved before they permit helical piles, especially on new structures. Ask the reviewing county what it wants for your exact scope.
Which county issues helical pier permits in Delaware?
The county where the property sits. New Castle County Land Use covers the north. Kent County Planning Services covers central Delaware. Sussex County staff cover the south. There is no statewide permit office for helical piers. Confirm the current application path with that county’s building staff before you schedule a rig.
Does Delaware honor an out-of-state contractor license for helical piers?
Not as a substitute for Delaware’s own requirements. Delaware does not issue a helical trade card to begin with. You still need the Delaware business license to operate here, and engineering still has to be done by a Delaware PE. An out-of-state contractor board card may impress a client. It will not replace One Stop or a county permit.
Do I need a DNREC permit to install a few helical piers?
Often no, if total earth disturbance stays under 5,000 square feet and you are not otherwise regulated. 7 DE Admin. Code 5101 uses that 5,000 square foot threshold. Larger pads, long access drives, or stacked work on one site can cross it. Federal NPDES construction coverage is a separate 1-acre trigger. Measure the disturbed area. Do not guess.
What inspection documents do counties want after helical piles go in?
Expect torque and depth logs, product identification that matches the approved report, and a look at the connection to the structure. Many reviewers also want a PE letter that the installed system meets the permitted design. Ask for the inspection checklist when the permit is issued so you are not building the file after the fact.
Can I install helical piers on my own house in Delaware without a license?
Owner-builder rules are county and fact specific, and they do not automatically cover rental property or work you do for neighbors. If you take pay, you are in business and the Revenue license applies. Structural work can still need a permit and a PE. Confirm owner-builder limits with the county. Do not take internet advice as a waiver.
Is an ICC-ES AC358 report a Delaware license?
No. AC358 is acceptance criteria used to evaluate helical foundation products for evaluation reports. It helps a plans examiner understand the product. It does not license your company, and it does not let an unlicensed person practice engineering. Keep the report in the job file next to the permit, not in place of the permit.
What tax filings hit a first-year helical pier contractor in Delaware?
Plan on the business license and gross receipts filings that Division of Revenue assigns to contracting, plus federal income and payroll items if you have staff. Delaware has no retail sales tax, but GRT is real. Confirm current rates, exclusions, and due dates with Revenue. Do not copy an old rate from a forum post into your books.
Do helical pier contractors need workers compensation in Delaware?
If you have employees, Title 19 Chapter 23 is the workers’ compensation chapter you have to respect. Owner-only shops still need to confirm how the Department of Labor treats their facts. General liability is not workers’ comp. Confirm coverage before the first payroll. A gap here is a first-year killer.
Sources
- Delaware Code Title 24, Chapter 28 (Professional Engineers): The practice of engineering in Delaware is regulated under Title 24 Chapter 28, including licensure through the statutory professional engineers body.
- 7 DE Admin. Code 5101 Sediment and Stormwater Regulations: Delaware sediment and stormwater planning requirements apply to sites with earth disturbance at or above 5,000 square feet.
- U.S. EPA, Stormwater Discharges from Construction Activities: Federal NPDES construction stormwater requirements are triggered at 1 acre of disturbance (with additional recapture rules for smaller sites in a larger common plan).
- ICC, International Building Code 2021, Chapter 18 Soils and Foundations: IBC Chapter 18 governs building and foundation systems, including deep foundation provisions used for helical piles.
- ICC Evaluation Service, AC358 Acceptance Criteria for Helical Pile Systems and Devices: AC358 is the ICC-ES acceptance criteria used to evaluate helical pile systems and devices for evaluation reports.
- OSHA, 29 CFR 1926.20 General safety and health provisions: Construction employers must initiate and maintain programs necessary to comply with OSHA Part 1926.
- New Castle County Department of Land Use, Building Inspections: New Castle County Land Use Building Inspections administers building permits and inspections in New Castle County.
- Delaware Code Title 19, Chapter 23 (Workers’ Compensation): Delaware workers’ compensation duties for employers are set in Title 19 Chapter 23.
- Delaware Division of Revenue, Gross Receipts Tax: Delaware contracting businesses are subject to Division of Revenue gross receipts tax filings; current rates and forms are published by Revenue.
- Delaware Code Title 25, Chapter 27 (Mechanics’ Liens): Contractor and supplier mechanics’ lien rights and procedures in Delaware are set out in Title 25 Chapter 27.
- OSHA, 29 CFR 1926.651 Specific excavation requirements: OSHA excavation requirements in 1926.651 apply when construction work includes trenches or other excavations around foundations.
- Kent County Department of Planning Services: Kent County Planning Services is the county department that administers planning and building-related functions for Kent County.
- Sussex County Planning and Zoning: Sussex County planning and zoning staff administer local planning and related building processes in Sussex County.
- U.S. BLS, Occupational Employment and Wage Statistics, Delaware: BLS publishes current occupational employment and wage estimates for Delaware that contractors can use to check labor cost assumptions.