What to Fix Before Selling Your House: ROI Data

Quick answer: Fix what a buyer's inspector will flag and what buyers see first. Skip big remodels. According to Zonda's 2025 Cost vs. Value Report, the projects that returned the most at resale were a garage door replacement (about 268% of cost recouped nationally) and a steel entry door (about 216%). Large kitchen and bath remodels typically return less than they cost.

What pays back: the 2025 Cost vs. Value data

Zonda's 38th annual report, released September 2025, compared what projects cost with the value they add at resale. The national averages:

• Garage door replacement: about $4,672 cost, about $12,507 in resale value, 267.7% recouped

• Steel entry door replacement: about $2,435 cost, 216.4% recouped

• Manufactured stone veneer: about $11,702 cost, 207.9% recouped

• Fiber-cement siding replacement: about $21,485 cost, 113.7% recouped

• Minor kitchen remodel: about $28,458 cost, 112.9% recouped

• Wood deck addition: about $18,263 cost, 94.9% recouped

Eight of the top ten projects were exterior work. That lines up with how buyers shop: the listing photo and the curb are the first impression.

Fix these before you list

• Anything an inspector will write up: leaks, roof damage, missing GFCI outlets, broken windows, failed seals, grading that sends water toward the foundation. Unfixed items become repair credits, often at inflated contractor estimates.

• Safety and systems: smoke and carbon monoxide detectors, a heating system serviced within the last year, working water heater, handrails.

• Paint and light: neutral paint, bright bulbs and clean windows photograph well and cost little.

• Curb appeal: trimmed shrubs, fresh mulch, a clean front door and working exterior lights.

• Flooring: deep cleaning or refinishing hardwood usually beats replacing it.

Usually skip these

• Major kitchen or bath remodels. Buyers want to pick their own finishes, and you rarely recover the full cost.

• Personal-taste upgrades: high-end fixtures, custom built-ins, bold tile.

• Projects you can't finish before listing. A half-done project looks worse than an untouched one.

Connecticut-specific items buyers ask about

• Oil tanks: buried or older tanks worry buyers and insurers. Have the history and any removal paperwork ready.

• Septic and well: recent pumping records and a water test help keep a deal from being renegotiated.

• Open permits: close out old permits for decks, finished basements and additions before an attorney finds them.

• Radon: many Connecticut buyers test. A mitigation system with records is a plus.

What if you don't want to fix anything?

You can sell as-is. Price it for its condition and be upfront about known issues. See selling a house as-is in Connecticut. You can also compare the as-is list price with a cash offer.

Get a pre-listing walkthrough

We will walk your home and tell you which fixes are worth doing for your price range. Book a walkthrough or get a home value.

Sources: Zonda 2025 Cost vs. Value Report (September 2025, national averages). Regional costs and returns vary.