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Home renovation in the United States is two projects running at once: the one you can see, and a regulatory one you mostly cannot. The visible project is framing, wiring, drywall and finishes. The invisible one is a federal lead rule that attaches to almost any paid work in a house built before 1978, a permit and inspection process run by a local building department that answers to nobody else, and a state licensing system that differs so much from state to state that the word "licensed" means different things a few hours' drive apart.

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The federal piece is the narrowest and the strictest. EPA's Renovation, Repair and Painting rule applies to renovations performed for compensation in target housing and child-occupied facilities, and it does not care whether anyone believes there is lead in the paint. It turns ordinary remodeling into certified work with defined containment, prohibited tools, a cleaning protocol and records. The exceptions are small and precise, and they are measured in square feet of disturbed paint.

Everything else is local. Your building department decides what needs a permit and when it gets inspected. Your state decides who may hold the contract at all, and at what contract value a licence becomes mandatory. Your state's lien law decides whether a subcontractor you never met can record a claim against your house. Those three answers, plus the age of the building, describe nearly every constraint a US renovation runs into.

The pre-1978 lead rule: when ordinary remodeling becomes regulated work

EPA's renovation rule applies to all renovations performed for compensation in target housing and child-occupied facilities. "Renovation" is defined broadly enough to cover most of what a remodeler does: removing, modifying or repairing painted surfaces or painted components, sanding and scraping and other surface preparation that may generate paint dust, removing building components such as walls, ceilings, plumbing and windows, and weatherization work such as cutting holes in painted surfaces to blow in insulation. Nothing in that list sounds like lead abatement, and none of it has to for the rule to apply.

The way out is not age or opinion but measurement. The rule exempts minor repair and maintenance activities, defined as work that disrupts 6 square feet or less of painted surface per room for interior work, or 20 square feet or less for exterior work. Two conditions ride along with the numbers: none of the work practices the rule prohibits or restricts may be used, and the work must not involve window replacement or demolition of painted surface areas. Replace one window in a 1950s house and the exemption is gone no matter how small the opening is.

The rule also closes the obvious workaround. Jobs other than emergency renovations performed in the same room within the same 30 days must be counted as the same job when deciding whether the exemption applies, and when a painted component is removed, the entire surface area removed counts as painted surface disturbed. A contractor who proposes to do your living room in four visits is not making the job exempt; they are making it a single job with four site setups.

  • A certified renovator may take the house out of the rule by testing each affected component with an EPA-recognized test kit and following the kit manufacturer's instructions.
  • A certified renovator may also collect a paint chip sample from each affected painted component and send it to a laboratory EPA recognizes for lead analysis.
  • Either route has to show the coating is free of lead at or above 1.0 milligram per square centimeter or 0.5 percent by weight, which is the threshold the rule names.
  • A written determination by a certified inspector or risk assessor works too, provided the renovation firm has obtained a copy of it.
  • Where components form an integrated whole, such as the treads and risers of one staircase, only one component needs testing unless they appear to have been repainted separately.
  • Emergency renovations, meaning unplanned work responding to a sudden event that threatens health, safety or significant property damage, are excused from the information and some other requirements only to the extent necessary to respond to the emergency.

What a lead-safe crew actually does inside your house

The site setup is the part a homeowner can inspect from the hallway, and the rule is unusually specific about it. For interior work the firm must remove furniture, rugs and window coverings from the work area or cover them with plastic sheeting or another impermeable material with all seams and edges taped or sealed, close and cover all duct openings in the work area, close the windows and doors, and cover doors with sheeting in a way that lets workers pass through while confining dust. The floor, including installed carpet, has to be covered with taped-down sheeting for 6 feet beyond the perimeter of the surfaces being worked on, or far enough to contain the dust, whichever is greater.

Three tool practices are prohibited or restricted outright, and they are the ones most likely to be argued about on site. Open-flame burning or torching of painted surfaces is prohibited. Machines that remove coatings through high-speed operation, including sanders, grinders, power planers, needle guns and abrasive blasting, are prohibited on painted surfaces unless they have shrouds or containment and a HEPA vacuum attachment collecting dust at the point of generation, operated so no visible dust escapes. A heat gun may be used only at temperatures below 1,100 degrees Fahrenheit.

  • Waste has to be contained before it leaves the work area, and any chute used to remove it must be covered.
  • At the end of each work day and at the end of the job, collected waste must be stored under containment or behind a barrier that prevents both release and access.
  • Cleaning covers all objects and surfaces in the work area and within 2 feet of it, worked from higher surfaces down to lower ones.
  • Paint chips and debris are collected and sealed in a heavy-duty bag without being dispersed, and protective sheeting is misted before it is folded dirty-side inward.
  • Sheeting used to isolate contaminated rooms from clean rooms stays up until after the cleaning and the removal of the other sheeting.
  • Personnel, tools and the outsides of waste containers must be free of dust and debris before anyone leaves the work area, which is why a crew changing footwear at a plastic threshold is a good sign rather than theatre.

Who is allowed to hold your contract: state licensing by contract value

There is no national contractor licence, and the states do not even agree on what triggers one. Two examples show how wide the range is. California's contractor law does not apply to a project whose aggregate contract price for labor, materials and all other items is less than one thousand dollars, and only where the work does not require a building permit; the same section says splitting an operation into contracts below that figure to evade the chapter does not help, and that the exemption is unavailable to anyone who advertises as a contractor or who employs another person to help with the work.

Virginia instead sizes the licence to the money. Class C contractors handle work where a single contract or project is over 1,000 dollars but less than 30,000 dollars, or where the total undertaken in any 12-month period is less than 250,000 dollars. Class B covers a single contract of 30,000 dollars or more but less than 150,000 dollars, or a 12-month total of 250,000 dollars or more but less than 1 million dollars. Class A covers a single contract of 150,000 dollars or more, or a 12-month total of 1 million dollars or more. Virginia also requires a master tradesman licence as a condition of licensure for electrical, plumbing and HVAC contractors.

The practical lesson is not to memorise either state but to ask the right question. Find the board that issues the licence where the work will be done, check the licence number against that board's own register rather than a certificate the contractor hands you, and confirm that the class or classification on the register actually covers the size and type of job you are asking for.

The paperwork a certified firm owes you, and how long it lives

Before work starts in a dwelling unit, and no more than 60 days before it, the firm must give the owner EPA's lead pamphlet and either obtain a written acknowledgment of receipt or obtain a certificate of mailing at least 7 days before the renovation. If the owner does not live in the unit, an adult occupant has to be given the pamphlet as well, with the same choice of acknowledgment or certificate of mailing, and a firm that cannot get a signature must certify in writing the address, the date and method of delivery, the names of the people who delivered it and the reason no acknowledgment was obtained.

Certification is not a one-time badge. EPA issues an approved firm a certificate with an expiration date not more than 5 years from approval, and a firm must be re-certified every 5 years to keep it. A re-certification application counts as timely only if it is postmarked 90 days or more before the current certification expires; a firm whose certification lapses must stop performing renovations until EPA certifies it again. Renovation records must be kept and made available to EPA for 3 years after the renovation is completed, and that retention period does not override longer obligations under state or tribal law.

  • Ask for the firm's EPA or state certification number and its expiration date, and write both into the contract.
  • Ask which named individual is the certified renovator for your job, since the rule assigns specific duties to that person rather than to the company in the abstract.
  • Keep your signed pamphlet acknowledgment: it is the document that proves when the clock started.
  • Ask for a copy of the job records at completion rather than trusting that you can retrieve them from the firm in year three.
  • For work in the common areas of a multi-unit building, expect written notice to each affected unit or posted signs, and a signed, dated statement describing how occupants were notified.

Signs a renovation has outgrown a handyman in a pre-1978 house

  • More than 6 square feet of painted surface will be disturbed in any one room, which is a small area once a wall is opened for wiring or plumbing.
  • A window is being replaced, which removes the minor repair exemption regardless of the area involved.
  • Any part of the job is demolition of painted surface areas, which is also excluded from the exemption by name.
  • The quote proposes power sanding, grinding or torching of old paint without mentioning shrouds, HEPA collection or containment.
  • Work in the same room is being split into several visits inside a month, which the rule counts as one job anyway.
  • Nobody has mentioned the pamphlet, the acknowledgment or a certification number before demolition day.

Living in the house while it is being renovated

Staying put is the default for most US remodels, and it is workable when the work is contained to a wing or a floor and the kitchen and at least one bathroom stay in service. It stops being workable when containment is the point. A lead-safe interior job seals the work area, covers duct openings and keeps dust inside a plastic envelope that only works if nobody walks through it, so a household route that crosses the work area every morning defeats the method the rule requires.

Decide the question before demolition rather than during it. Agree in writing which rooms are the work area on which dates, which door is the crew entrance, where waste will be stored between days, and what the arrangement is for pets, who cannot read a plastic barrier. If small children or anyone pregnant lives in the house and the building is pre-1978, treat temporary relocation during the dusty phases as the normal choice rather than an extravagance.

Closing out a remodel so it still makes sense in five years

  • Collect the signed permit card or inspection record for every trade, because the building department's file is what a future buyer's inspector will want.
  • Keep the lead pamphlet acknowledgment, the certification number and any test kit or laboratory result together with the permit records.
  • Photograph open walls before they are closed, with a tape measure in frame, so the next trade can find a stud bay or a shutoff without exploratory demolition.
  • Record the model and serial numbers of anything installed behind an access panel while the panel is still off.
  • Register manufacturer warranties yourself rather than assuming the installer did, and file the installation date with them.
  • Ask for the leftover paint to be labelled by room and sheen, which costs nothing on the last day and is worth an afternoon later.

Home Remodeling: frequently asked questions

Does the federal lead rule apply if my house was built before 1978 but I know it was repainted?

Repainting does not remove the older coatings underneath, so the rule still applies unless one of its own exceptions is met. Those exceptions are evidentiary: a certified renovator tests each affected component with an EPA-recognized test kit following the manufacturer's instructions, or collects paint chip samples analysed by a laboratory EPA recognizes, or the firm holds a written determination from a certified inspector or risk assessor. Each has to show the coating is free of lead at or above 1.0 milligram per square centimeter or 0.5 percent by weight.

How much paint can be disturbed before the rule kicks in?

The minor repair and maintenance exemption covers work that disrupts 6 square feet or less of painted surface per room indoors, or 20 square feet or less outdoors. It is lost if prohibited or restricted work practices are used, and it never covers window replacement or demolition of painted surface areas. Where a painted component is removed, the whole removed surface counts, and separate jobs in the same room within 30 days are treated as one job.

How do I check that a renovation firm's certification is real?

Ask for the certification number and its expiration date and confirm them with EPA or with the state program that runs certification where you live. Certificates expire no more than 5 years from approval and firms must be re-certified every 5 years, so an old certificate proves nothing by itself. A firm whose certification has lapsed is not permitted to perform covered renovations until it is certified again.

Is a contractor's licence required for a small remodel?

It depends entirely on the state and often on the price. California's exemption reaches only a project whose aggregate contract price for labor, materials and everything else is under one thousand dollars, and only where no building permit is required; dividing a bigger job into small contracts to get under it does not work. Virginia sets three licence classes by contract value, with Class C starting just above 1,000 dollars and Class A required at 150,000 dollars or more in a single contract. Check the board in the state where the work will happen.

Can the crew use a heat gun or a sander on old paint?

A heat gun is allowed only below 1,100 degrees Fahrenheit. Open-flame burning or torching of painted surfaces is prohibited outright. High-speed paint removal machines such as sanders, grinders, power planers, needle guns and abrasive blasters are prohibited on painted surfaces unless they have shrouds or containment systems with a HEPA vacuum attachment collecting dust at the point of generation, run so that no visible dust escapes.

How long should I keep renovation paperwork?

The firm has to retain the records that demonstrate compliance for 3 years after the renovation is completed, and longer if state or tribal law says so. For your own purposes, keep the permit and inspection records, the pamphlet acknowledgment, the certification number and any lead test results indefinitely, since these are the documents that answer questions at resale or on an insurance claim.

Sources

  1. 40 CFR 745.82: applicability of the renovation, repair and painting rule (govinfo)
  2. 40 CFR 745.83: definitions, including minor repair and maintenance activities (govinfo)
  3. 40 CFR 745.84: information distribution requirements (govinfo)
  4. 40 CFR 745.85: work practice standards (govinfo)
  5. 40 CFR 745.86: recordkeeping and reporting requirements (govinfo)
  6. 40 CFR 745.89: firm certification (govinfo)
  7. EPA: Lead Renovation, Repair and Painting Program
  8. California Business and Professions Code section 7048: contracts under one thousand dollars
  9. Code of Virginia section 54.1-1100: Class A, B and C contractor definitions
  10. Virginia Department of Professional and Occupational Regulation: Board for Contractors

Written by the LokalMatch editorial team. Last reviewed September 21, 2026. How we write and check our guides

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What affects the cost of home renovation

Prices depend on the details of your project. We only publish price ranges when they’re backed by real LokalMatch quote data or reliable sources. Until then, here’s what usually changes the price:

  • Size and scope of the project
  • Structural changes, such as moving or removing walls
  • Plumbing, electrical and HVAC work involved
  • Finishes and materials chosen
  • Design, drawings and permits
  • Condition of the existing house once it's opened up
  • Access to the site and the timeline

How to compare renovation contractors before you hire

  • Look for a contractor who has finished projects similar in size and type to yours, and ask to see them.
  • Get a written contract with the scope, the payment schedule, the timeline and how changes will be priced.
  • Ask who will manage the job day to day and how often you'll get updates.
  • Check that they carry liability insurance and workers' compensation coverage, and that their trades are licensed where required.
  • Compare quotes on the same scope, and ask what each one leaves out.
  • For structural changes, make sure an engineer or designer is involved where needed.

Questions to ask renovation contractors before you hire

  • Who will pull the permits, and who will be there for inspections?
  • Which parts of the job will you do yourselves, and which will go to subcontractors?
  • How do you handle change orders and unexpected problems once walls are open?
  • What is the payment schedule, and what is each payment tied to?
  • Can you show me proof of liability insurance and workers' compensation coverage?
  • What warranty do you offer on your workmanship, and is it in writing?
  • Can I speak with a few of your recent clients?

Home renovation permits and local rules

Some home renovation work needs a permit or has to meet local bylaws. Rules vary by municipality, so ask your pro whether a permit is needed and who will apply for it — and check with your city or town if you’re unsure.

Permits and licensing

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