CATEGORY
Mechanical & Systems
HVAC, heating, electrical, water heaters, generators, EV chargers, sump pumps and fans.
Tools in this category
Water Softener Maintenance Cost Calculator
Estimate water softener salt refill and servicing cost.
Open toolGenerator Cost Calculator
Estimate whole-home standby generator purchase and installation cost by kW.
Open toolEV Charger Cost Calculator
Estimate Level 2 EV charger hardware and installation cost.
Open toolPropane Tank Cost Calculator
Estimate propane tank purchase and installation cost by size and placement.
Open toolWhole-House Repipe Cost Calculator
Estimate a whole-house repipe for PEX or copper including wall repair.
Open toolDuctwork Installation Cost Calculator
Estimate ductwork installation and replacement by linear feet and material.
Open toolHeat Pump Replacement Cost Calculator
Estimate a heat pump replacement by system type, size and efficiency.
Open toolFireplace Installation Cost Calculator
Estimate fireplace installation by type, fuel and finish.
Open toolBoiler Replacement Cost Calculator
Estimate a boiler replacement by type, size and efficiency.
Open toolFurnace Replacement Cost Calculator
Estimate a furnace replacement by type, size and efficiency.
Open toolCentral AC Replacement Cost Calculator
Estimate a central AC replacement by size and efficiency.
Open toolWhole-House Rewiring Cost Calculator
Estimate whole-house rewiring by area, age and outlets.
Open toolGuides in this category
How to Estimate a Furnace Replacement
Contractor method for estimating furnace replacement: type, size, ductwork and removal.
Read guideHow to Estimate a Boiler Replacement
Contractor method for estimating boiler replacement: type, size, valves and the hidden line items.
Read guideHow to Estimate a Heat Pump Replacement
Contractor method for estimating heat pump replacement: sizing, efficiency, ductwork and removal.
Read guideHow to Bid Ductwork Installation and Replacement
How to bid ductwork installation and replacement: linear feet, material, registers, insulation and access.
Read guideChimney Liner Cost: In 2026
Estimate chimney liner installation cost — with the free chimney calculator.
Read guideElectric Fireplace Cost: In 2026
Estimate electric fireplace installation cost — with the free HVAC calculator.
Read guidePropane Tank Installation Cost: In 2026
Estimate propane tank installation cost — with the free HVAC calculator.
Read guideDimmer Switch Installation Cost: In 2026
Estimate dimmer switch installation cost — with the free electrical calculator.
Read guideChandelier Installation Cost: In 2026
Estimate chandelier installation cost — with the free electrical calculator.
Read guideHome Security System Cost: In 2026
Estimate home security system cost — with the free electrical calculator.
Read guideSmart Lock Installation Cost: In 2026
Estimate smart lock installation cost — with the free door calculator.
Read guideGenerator Transfer Switch Cost: In 2026
Estimate generator transfer switch installation cost — with the free electrical calculator.
Read guide