Mechanical & Energy cost calculators
HVAC, water heaters, electrical, solar, plumbing, and home systems. 15 free calculators, each returning a low-to-high planning range with a line-item breakdown and ZIP-zone pricing.
HVAC ReplacementAC, furnace, heat pump, mini-split, combo
Water HeaterTank, tankless, heat pump (HPWH), solar
Solar PanelsResidential PV + battery storage; Section 25D credit eligibility flagged
Electrical Panel Upgrade100A to 200A or 400A, sub-panel, NEC 2024
Septic SystemTank + drainfield, conventional/aerobic/mound
Sump PumpPedestal, submersible, premium + battery backup
FireplaceGas, wood, electric, pellet stove install
EV ChargerLevel-2 home install; Section 30C credit eligibility flagged
Standby GeneratorPortable, standby NG/LP, liquid-cooled
Sewer Line ReplacementTrenchless or open-trench sewer replacement
Mini-Split / Ductless HVACSingle-zone or multi-zone ductless heat pumps
Tankless Water HeaterGas or electric on-demand water heater
Mold RemediationContainment, HEPA, demo, dispose, dry, certify
Crawl Space EncapsulationVapor barrier, sump, dehumidifier, insulation
Radon MitigationSub-slab and sub-membrane depressurization
Estimates are planning ranges, not contractor quotes. See how we build the ranges and the data sources. We don't replace your contractor, permit, or inspector.