What Does It Actually Cost to Renovate a House? A Contractor's Real Numbers

Key Takeaways

• A full house renovation typically runs $100–$400+ per square foot depending on scope, finishes, and your region
• Kitchen and bathroom remodels consistently drive the highest cost per square foot of any room in the house
• Budget 15–20% over your estimate for surprises, because surprises always happen
• The cheapest bid almost always costs more in the end - change orders are how shady contractors make their money back
• Visualizing your renovation before committing to a style can save you thousands in mid-project changes

I’ve been doing remodeling work for over 20 years. Third-generation carpenter. I grew up on jobsites, spent five years as a B-52 crew chief in the Air Force, and came back to the trades because it’s in my blood. I’ve built bathrooms in Hawaii, kitchens in Alaska, and everything in between across the Pacific Northwest.

I say that not to brag, but because I want you to know these numbers come from actually doing the work - not from a spreadsheet someone built by scraping the internet.

Here’s the uncomfortable truth: most homeowners have no idea what renovation really costs. And most of what they think they know comes from HGTV, where a full kitchen remodel somehow happens in a weekend with a $20,000 budget. That’s not renovation. That’s television.

Why Renovation Costs Vary So Much

Before I throw any numbers at you, you need to understand what actually drives cost. Otherwise the numbers mean nothing.

Four factors control almost everything:

• Scope - Are you replacing cabinets or moving walls? A cosmetic refresh is a completely different animal than a gut remodel.
• Finishes - Stock cabinets vs. custom, laminate vs. quartz, builder-grade fixtures vs. designer hardware. The finish level alone can triple the material cost.
• Labor market - Where you live determines what labor costs. The Pacific Northwest runs higher than rural Midwest. That’s just the market.
• Hidden conditions - Old houses hide problems. Rot, outdated wiring, plumbing that doesn’t meet code. Once the walls open up, the scope changes.

I can’t control any of these for you. But I can tell you what I’ve seen in real projects, and what to expect when you start making calls.

Room-by-Room Renovation Cost Breakdown

These aren’t estimates I pulled from a website. These are the kinds of numbers I quote and see quoted in the Pacific Northwest market. Your region will be different - subtract 10–20% in lower cost-of-living areas, add more if you’re in a major metro.

Kitchens: The Most Expensive Square Footage in Your House

A kitchen is the hardest room to renovate on a budget. Not because kitchens are physically complicated (though they are), but because the materials are expensive and the expectations are high.

A mid-range kitchen remodel in the PNW starts around $45,000. I’ve seen people try to do it for $20,000 and end up with something that looks cheap in five years. I’ve also seen $120,000 kitchens that make you stop walking when you enter the room.

The biggest cost drivers in a kitchen:

• Cabinets - Usually 30–40% of your total kitchen budget. Custom cabinetry can easily run $20,000+ on its own.
• Countertops - Quartz runs $80–$150 per square foot installed. A typical kitchen might need 50–70 sq ft.
• Appliances - Mid-range package (refrigerator, range, dishwasher) runs $3,000–$8,000. High-end, double that.
• Labor - Demo, framing, electrical, plumbing, tile, painting, trim. It adds up fast.

Bathrooms: Small Room, Big Bill

Bathrooms cost more per square foot than almost any other room in the house. You’re dealing with tile, plumbing, waterproofing, and precision work in tight quarters.

A hall bathroom runs $12,000–$20,000 for a real remodel (not just a cosmetic refresh). A master bath with a walk-in shower, soaking tub, and double vanity? You’re starting at $25,000 and going up from there.

The Hidden Costs Nobody Talks About

This is where projects go sideways. I’ve seen more than a few homeowners get hit hard by costs they didn’t see coming.

What’s Behind the Walls

I’ve opened up walls in older PNW homes and found:

• Rot from years of slow water intrusion
• Knob-and-tube wiring that hasn’t been legal since the 1950s
• Cast iron drain lines packed with decades of buildup
• Structural issues from settling or past amateur work

When this happens, you have two choices: address it properly, or pretend you didn’t see it. Any contractor worth hiring will tell you about it and scope the fix. The ones who don’t say anything are the ones you don’t want in your house.

Permits and Inspections

Most homeowners don’t realize permits are required for most remodeling work. Electrical, plumbing, structural changes - all of it typically requires a permit and one or more inspections. Permits cost money and add time to the project. In some jurisdictions, a kitchen remodel permit can run $500–$2,000.

Skipping permits is not a shortcut. It’s a liability. When you go to sell, unpermitted work can kill a sale or require you to tear it out and redo it properly.

Material Lead Times

Custom cabinets take 4–8 weeks to arrive. Specialty tile? Could be 3–6 weeks. If you order late or make a change after the order goes in, your project stalls. That stall costs money, especially if a crew is standing by waiting for materials.

The Real Story on Contractor Pricing

I hear it all the time: “Why does it cost so much?” Let me break down what you’re actually paying for.

Here’s something I tell every client: good, fast, or cheap - pick two. You want it done right and fast? It won’t be cheap. Right and cheap? It won’t be fast. Fast and cheap? It won’t be right. This isn’t a contractor excuse. It’s physics.

The cheapest bid wins jobs, but it rarely delivers the best outcome. Some contractors underbid on purpose to get through the door, then hit you with change orders once your walls are open and you’re stuck. By the time you realize what’s happening, switching contractors mid-job is a disaster.

How to Get an Accurate Renovation Estimate

Getting a number you can actually budget around takes preparation on your end, too.

Visualize Before You Commit

One of the most expensive mistakes homeowners make is changing their mind after work has started. Demo is done, tile is ordered, the crew is on-site - and then “actually, can we change the direction of the shower?”

I’ve seen that sentence cost $3,000 before. Sometimes more.

The fix is simple: see the finished result before you commit. Not a rough sketch. Not a Pinterest board of someone else’s house. Your actual room, transformed into the style you’re considering.

That’s exactly what ReVision AI does. Snap a photo of your kitchen or bathroom as it is right now, pick a design style, and the AI shows you a photorealistic version of what that room could look like after renovation.

It’s not a design commitment. It’s a way to get clear on what you actually want before any money changes hands. I built it because I spent years watching homeowners struggle to visualize the end result - and I watched contractors lose jobs because they couldn’t bridge that gap.

Try it free with ReVision AI - three transformations are free. No account needed to start.

Your Renovation Budget Checklist

Before you call the first contractor, work through this:

• Write out the scope of work in plain language - what rooms, what changes, what stays
• Choose your finish level (budget, mid-range, high-end) and document your style preferences
• Set your real budget - not what you hope it costs, what you can actually spend
• Add 15–20% contingency to that number before you start getting bids
• Verify each contractor is licensed, insured, and has verifiable references
• Make sure every bid covers the same scope before comparing prices
• Ask each contractor how they handle change orders and unexpected conditions
• Understand the permit process for your project before work begins

Renovation costs are real, and they’re not going down. But going in with accurate expectations, a real budget, and a clear vision of what you want is the difference between a project that goes smoothly and one that goes sideways. I’ve seen both ends. The ones that go well almost always start with a homeowner who did the prep work before the first nail went in.