Reference library

Sources used by 51828

51828 links to official consumer, energy, tax, pest, mold, and contractor licensing references where they help homeowners verify assumptions beyond a price estimate.

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Last reviewed
What changed

Separated official context references from public market benchmarks and calculator assumptions.

Why changed

Readers should know which sources support safety, licensing, tax, energy, or consumer context instead of assuming every link sets a price.

Source or feedback trigger

Source-library review for official references.

Review owner

51828 Cost Research Desk. Maintained by lengyan.

Found an outdated source, unclear formula, or useful quote example? Send the page URL and details to wwang@51828.com.

Official references

These sources do not set our price estimates. They support safety, licensing, consumer protection, energy, incentive, or contractor-selection context in relevant guides.

ReferenceURL
FTC home improvement scam guidancehttps://consumer.ftc.gov/articles/how-avoid-home-improvement-scam
California CSLB consumer resourceshttps://www.cslb.ca.gov/consumers/
California CSLB contractor license guidancehttps://www2.cslb.ca.gov/Consumers/Hire_A_Contractor/What_Kind_Of_Contractor.aspx
Texas TDLR air conditioning and refrigeration contractorshttps://www.tdlr.texas.gov/acr/
U.S. Department of Energy Energy Saverhttps://www.energy.gov/energysaver/energy-saver
DOE water heating guidehttps://www.energy.gov/energysaver/water-heating
DOE selecting a new water heaterhttps://www.energy.gov/energysaver/selecting-new-water-heater
DOE planning a home solar electric systemhttps://www.energy.gov/energysaver/planning-home-solar-electric-system
IRS residential clean energy credithttps://www.irs.gov/credits-deductions/residential-clean-energy-credit
EPA mold resourceshttps://www.epa.gov/mold
EPA brief guide to mold, moisture and your homehttps://www.epa.gov/mold/brief-guide-mold-moisture-and-your-home
EPA tips for selecting a pest control servicehttps://www.epa.gov/safepestcontrol/tips-selecting-pest-control-service
EPA safe pest controlhttps://www.epa.gov/safepestcontrol/got-pests-control-them-safely
BLS Occupational Employment and Wage Statisticshttps://www.bls.gov/oes/tables.htm
BLS Producer Price Indexhttps://www.bls.gov/ppi/
U.S. Census Building Permits Surveyhttps://www.census.gov/permits
Florida DBPR license searchhttps://www.myfloridalicense.com/wl11.asp
New York Attorney General contractor guidancehttps://ag.ny.gov/resources/individuals/consumer-issues/contractors-home-maintenance
New Jersey home improvement contractor registrationhttps://www.njconsumeraffairs.gov/hic/Pages/default.aspx
Arizona Registrar of Contractors before you hirehttps://roc.az.gov/before-hire
Georgia home repair consumer guidancehttps://consumer.georgia.gov/consumer-topics/home-repair-improvements
Georgia residential contractor licensing guidehttps://sos.ga.gov/how-to-guide/how-guide-residential-contractors
North Carolina Licensing Board for General Contractorshttps://nclbgc.org/