Garage Conversion & Addition Calculator

Planning & Permits

Architectural drawings & structural plans ($4000 / job): Permit application & coordination ($1500 / job): Site survey and utility marking ($750 / job): HOA approval ($400 / job):

Demolition

Remove old garage doors and tracks ($500 / each): Remove drywall or wall finishes ($1.80 / sqft): Remove damaged framing or sheathing ($3.00 / sqft): Remove electrical and plumbing ($800 / job): Demo old concrete slab ($5.50 / sqft):

Foundation

Excavation and grading ($3.50 / sqft): Formwork and rebar for slab ($4.50 / sqft): Pour concrete slab ($15.00 / sqft): Vapor barrier and insulation ($3.80 / sqft):

Framing

Frame walls ($9.50 / sqft): Frame roof ($15.00 / sqft): Sheathing and roof decking ($7.00 / sqft): Install garage headers ($800 / each):

Roofing & Siding

Install roofing ($8.50 / sqft): Install house wrap and flashing ($3.20 / sqft): Install siding ($10.00 / sqft): Install soffit, fascia, and trim ($20.00 / lf):

Doors & Windows

Install garage door with opener ($2900 / each): Install main-door ($550 / each): Install windows ($400 / each): Trim and paint all openings ($250 / each):

Electrical

Install subpanel or connect to main ($1900 / job): Install garage lighting ($250 / each): Install outlets ($150 / each): Install GFCI-protected circuits ($150 / each): Install garage door opener wiring ($200 / each): Install exterior light and switch ($240 / each):

Insulation & Drywall

Insulate walls and ceiling ($3.80 / sqft): Install vapor barrier ($2.20 / sqft): Hang, tape, mud drywall ($4.50 / sqft): Sand and texture ($2.00 / sqft): Paint walls and ceiling ($3.50 / sqft):

Flooring

Grind and seal concrete floor ($4.00 / sqft): Apply epoxy or polyurea coating ($6.00 / sqft): Install base trim or cove base ($4.50 / lf):

Optional Upgrades

Add attic pull-down ladder ($1000 / job): Add EV charger or 240V outlet ($1200 / each): Install storage cabinets or shelving ($250 / lf): Add heating system ($3200 / job): Add plumbing for sink/bathroom ($2200 / job):

Kitchen Cabinetry & Countertops Installation

Install upper and lower kitchen cabinets ($350 / lf): Install countertops (quartz, granite, laminate, etc.) ($150 / lf):

Plumbing Work

Install sink and faucet ($400 / set): Add or modify plumbing for the entire kitchen setup ($1600 / job): Connect and install the dishwasher ($300 / each):

Appliance Installation

Install cooktop ($300 / each): Install oven ($300 / each): Connect refrigerator with water/ice dispenser ($250 / each):

Ventilation System

Install kitchen range hood ($800 / each): Connect ventilation system ($400 / job): Install or extend ductwork if needed ($45 / lf):

Electrical Work

Connect range hood to the electrical system ($480 / each): Install new outlets and switches for kitchen appliances ($280 / each): Run wiring for lighting if needed ($25 / lf):

Flooring Installation

Install laminate flooring ($6.00 / sqft): Install hardwood flooring ($8.50 / sqft):

Additional Work

Install kitchen backsplash (tile) ($45.00 / sqft): Install window sills and trims ($20.00 / lf): Paint walls and ceiling ($3.50 / sqft):