Free Home Renovation Cost Estimator - By Room & Scope (2026)

Whole-home renovation cost varies widely by scope. As a starting-point assumption for a rough budget (not market data, and not specific to any room): cosmetic updates run about $15-$30 per square foot (paint, fixtures, hardware), moderate renovations run about $50-$100/sf (new flooring, cabinets, countertops, no layout changes), and major gut renovations run about $100-$200/sf (moving walls, new plumbing, electrical). A 2,000 sq ft moderate whole-home renovation on that basis runs roughly $100,000-$200,000. Kitchens and bathrooms cost more per square foot than these whole-home rates; see the next question.

Kitchens are usually the most expensive room in total dollars, mainly because of cabinets, countertops, and appliances. A minor kitchen remodel (new cabinet fronts or refacing, countertops, hardware) typically runs $10,000-$30,000, and a major remodel (new layout, custom cabinets, high-end appliances) typically runs $30,000-$80,000. A gut that relocates plumbing and electrical runs toward the high end, or above it on a large kitchen. Use the Kitchen Remodel Cost Calculator for a detailed, itemized budget.

In the 2025 Cost vs. Value Report (Zonda), the highest-ROI projects were exterior replacements: a garage door replacement recouped about 268% of its cost at resale, a steel entry door about 216%, and manufactured stone veneer about 208%. Among interior projects, a minor kitchen remodel recouped about 113% and a mid-range bathroom remodel about 80%. Bigger projects return less: an upscale major kitchen remodel recouped about 38-50% and an upscale bathroom addition about 53%. Steer clients away from over-improving for the neighborhood, since it reduces ROI further; recommend they check recent comparable sales before locking in finishes.

Cosmetic renovation (roughly $15-$30/sf as a starting assumption) involves surface-level updates: fresh paint, new light fixtures, cabinet hardware, and minor repairs. Moderate renovation (roughly $50-$100/sf) replaces major elements like flooring, cabinets, and countertops without changing the layout. Major renovation (roughly $100-$200/sf) is a gut job: removing walls, relocating plumbing and electrical, replacing windows, and rebuilding from the studs out. These are whole-home starting points; bathrooms run higher per square foot at every tier, and kitchens run higher at the moderate and major tiers.

Timeline depends on scope: cosmetic work usually takes weeks, moderate renovations usually take a couple of months, and major gut renovations usually take several months. Kitchens and bathrooms take longer due to plumbing and electrical work. Build slack into the schedule for permit delays, material backorders, and hidden conditions found once walls are open.

Pricing an all-at-once renovation usually comes in lower overall because mobilization, permits, dumpsters, and setup are shared across rooms instead of billed on every phase. The tradeoff for the client is often living elsewhere during construction, which affects your schedule. A room-by-room sequence lets the client stay in the house and spread the cost over time, but each phase carries its own mobilization, permit, and dumpster cost, so price it as a series of smaller jobs, not a fraction of the whole-home number.

Experienced contractors break the project into rooms, then break each room into trade scopes: demo, framing, electrical, plumbing, tile, and finish work. Each scope gets its own material and labor line item. For a 2,000 sq ft whole-home renovation, the finish scopes alone might look like $35,000 for the kitchen, $18,000 for the primary bath, $10,000 for a hall bath, $12,000 for flooring, and $8,000 for paint and trim, a subtotal of $83,000. Demo, electrical, plumbing, permits, contingency, and your overhead and profit still go on top before you compare it to a per-square-foot range. Use the contractor estimate template to build a room-by-room bid your client can review line by line.

Many remodelers carry a 15-20% contingency above the base estimate, and carry the high end on older homes where hidden conditions are more likely. Once walls open up, rot, old wiring, galvanized plumbing, and asbestos are common finds, especially in older homes. A $60,000 renovation should have $9,000-$12,000 held in reserve. Build it into the original quote; it is the honest number for your client, and it is a much better conversation than the change order you will otherwise have once the walls are open.

Basement finishing cost depends heavily on scope and whether you are adding a bathroom or dealing with moisture first. Egress windows, where required, run about $2,500-$6,000 each installed (excavation, window well, and waterproofing included). Waterproofing itself varies widely with the severity of the problem. Use the Basement Remodel Cost Calculator or the Basement Finishing Cost Calculator for a scope-by-scope budget. Always address moisture issues before framing a single wall; finishing over a wet basement means redoing the work later.