Renovating a whole house is less like a long list of projects and more like a puzzle with an order to it. New floors laid before the plumbing is moved get torn up. Fresh drywall over old wiring gets opened again. The most expensive renovations are often not the ones with the fanciest finishes, but the ones done out of order.
HomeGuide puts a whole-house renovation at $15 to $60 per square foot on average, and a full gut to the studs at $60 to $150 per square foot.[1] Where your project lands depends mostly on how far beneath the surface it goes, so that is where this guide starts.
Key takeaways
- Cosmetic work runs about $15 to $60 per square foot; a gut renovation about $60 to $150 (HomeGuide).
- Work from the outside in and from the structure out: roof and foundation, then systems, then insulation, then finishes.
- Homes built before 1978 need lead-safe certified contractors for paid work that disturbs paint.
- If you suspect asbestos, EPA says leave it alone and have it handled only by accredited professionals.
Three kinds of whole-house renovation
It helps to decide early which of these you are actually doing, because each needs a different budget and a different kind of contractor.
A cosmetic refresh changes what you see: paint, flooring, lighting, fixtures, maybe new cabinet doors. The layout stays, and so do the pipes and wires. A systems renovation adds the parts you don't see: new wiring, plumbing, heating and cooling, and insulation, which means opening walls. A gut renovation strips the interior to the framing and rebuilds it, often moving walls as well. HomeGuide's low-end band of $15,000 to $40,000 covers the first kind; its high-end band of $75,000 to $200,000 includes structural repair, layout changes, HVAC and roofing.[1]
The order that avoids paying twice
- Make the house dry and sound: roof, foundation repairs, drainage, and windows if they are failing. Nothing inside lasts if water gets in.
- Demolition, and any hazardous material removal, before anything new arrives.
- Structural changes, such as removing or adding walls and beams.
- Rough-ins: plumbing, electrical, and heating and cooling ducts, while the walls are open.
- Insulation and air sealing, which are cheapest with the framing exposed.
- Drywall, then cabinets, then flooring and trim, then paint and fixtures.
Inspections usually happen between steps four and six. Skipping a permit to save time often costs more later, when an inspector or a buyer's inspector asks to see inside a finished wall.
Older homes: test before you tear
If the house was built before 1978, the EPA requires anyone paid to disturb painted surfaces to be certified in lead-safe work practices.[2] In a whole-house job, that covers most of the demolition, so ask every contractor for their certification.
Asbestos is the other one to rule out. EPA lists remodeling as a reason to have a home inspected, because it disturbs building materials, and says that if in doubt you should treat a material as asbestos and leave it alone. Removal is complex and should only be done by a trained and accredited asbestos professional.[3]
Budget for what you can't see yet
Old houses hide things: rotten subfloors under bathrooms, undersized wiring, joists cut for old pipes. We suggest holding back 10% to 20% of the budget for them, and the top of that range in an older home.
When rebuilding starts to make sense
HomeGuide puts tearing down and rebuilding at about $104 to $165 per square foot, against $60 to $150 for a full gut.[1] When a gut renovation also needs a new foundation or roof structure, the two numbers can meet. Rebuilding gives you a new house with current energy performance and no hidden surprises, but it means demolition, new permits and usually a longer time out of the house. Our cost to build calculator shows what a new house of the same size would cost to compare.
Stay in the house or move out?
Living through a cosmetic refresh is unpleasant but possible. Living through a gut renovation is a different matter: the water and power will be off at times, the kitchen disappears for weeks, and dust gets into everything no matter how much plastic goes up. Crews also work faster in an empty house, because they don’t have to pack up at the end of each day or work around your routine.
If you plan to stay, ask the contractor to phase the work so one bathroom and a basic kitchen setup always work, and agree how the living area will be sealed off. If you plan to move out, add rent and storage to the budget from the start. Those costs grow every week the job runs late, which is another reason to settle every decision before demolition begins.
Choosing how to run the project
There are two common setups. With design-build, one company designs the renovation and builds it, which keeps communication simple and gives you a price earlier. With an architect or designer plus a separately hired general contractor, you get drawings that several builders can bid on, and someone on your side checking the work, at the cost of more fees and a longer start.
Either way, insist on a written scope that lists every room, a schedule with milestones, and payments tied to finished stages rather than to dates. A deposit that is large compared with the first stage of work is a warning sign.
Allowances: where budgets quietly grow
Quotes for big renovations often include allowances, placeholder amounts for things you haven’t chosen yet, such as tile, lighting, appliances or cabinets. If the allowance is low and your taste is not, the difference is added later. Before signing, ask what each allowance would actually buy, and compare it with prices you find yourself. Choosing finishes before the contract is signed is the most effective way to keep the number stable. Our guide to change orders and cost overruns covers what happens when plans change mid-job.
Upgrades that only make sense with the walls open
A gut renovation is the one moment when insulation, air sealing and new wiring cost the least, because there is no finished surface to cut through and patch. It is also the time to size new heating and cooling for the improved house rather than the old one, and to run extra circuits or conduit for things you may add later, such as an electric vehicle charger or solar panels. None of it shows in the finished photos, and all of it is expensive to add after the drywall is up.
Plug your house size, land price and quotes into the free calculator. It uses the same NAHB 2024 averages as this guide.
Frequently asked questions
How much does a whole house renovation cost?
HomeGuide reports $15 to $60 per square foot for a whole-house renovation and $60 to $150 per square foot for a full gut to the studs.
What order should you renovate a house in?
Fix the roof, foundation and drainage first, then demolition, structural work, plumbing, electrical and HVAC rough-ins, insulation, drywall, cabinets, flooring, trim and paint.
Do I need to test for asbestos before renovating?
EPA lists remodeling as a reason to have a home inspected and says suspect material should be left alone and handled only by trained, accredited asbestos professionals.
Can I live in my house during a whole house renovation?
During a cosmetic refresh, usually yes. During a gut renovation, most people move out, because water, power and the kitchen will be unavailable at times and crews work faster in an empty house.
How should I pay a renovation contractor?
With a modest deposit and payments tied to completed stages of work, such as demolition, rough-ins passing inspection and drywall, rather than to calendar dates.
How long does a whole house renovation take?
It depends on the scope. A cosmetic refresh can take weeks, while a gut renovation often runs many months once design, permits, inspections and material lead times are included. Settling every finish before demolition is the best way to protect the schedule.
Sources
- HomeGuide, "How much does it cost to remodel a house?", December 11, 2025 Verified
- US Environmental Protection Agency, "Lead Renovation, Repair and Painting Program" Verified
- US Environmental Protection Agency, "Protect Your Family from Exposures to Asbestos" Verified
Figures last checked October 19, 2026. National averages are a planning guide, not a quote. See our editorial policy and data sources.
