Refinancing your mortgage can save you thousands, but your lender won't approve a dime without a residential appraisal. This independent assessment determines your home's current market value—and directly impacts your loan-to-value ratio, interest rate, and whether you qualify at all.
Why Appraisals Matter for Refinancing
When you refinance, your lender treats it almost like a new loan. They need proof that your home's value supports the new loan amount you're requesting. An appraisal protects the lender from loaning more than the property is worth, and it protects you from overcommitting financially.
Unlike your original purchase appraisal (which the seller often paid for), you'll typically cover the refinance appraisal cost yourself—expect to pay $300 to $700 depending on your home's size, location, and local market conditions.
Timeline and Process
A residential appraisal for refinancing usually takes 7–14 days from order to completion. Here's what happens:
- You order the appraisal through your lender or a third-party service ($300–$700)
- An appraiser is assigned based on their certification and familiarity with your area
- The appraiser inspects your home (typically 30–60 minutes for a single-family residence)
- Comparable sales are researched using recent sales of similar homes within 0.5–1 mile radius
- The report is delivered to your lender within 3–7 business days
Your refinance won't close until the appraisal is complete and the lender reviews it.
What Appraisers Actually Evaluate
Appraisers don't just eyeball your home. They document specific, measurable factors:
- Square footage (measured or verified against public records)
- Lot size and condition
- Age and structural integrity
- Systems: roof, HVAC, electrical, plumbing (age and condition)
- Interior finishes: flooring, paint, countertops, cabinetry
- Number of bedrooms, bathrooms, and living spaces
- Garage type (attached, detached, carport, or none)
- Basement condition (finished, unfinished, dry, wet history)
- Recent major repairs or upgrades
- Deferred maintenance (what needs fixing)
They'll also note the neighborhood, proximity to schools and jobs, and any environmental issues affecting value.
Appraisal vs. Assessment vs. Home Value Estimate
Don't confuse these three:
- Appraisal: Licensed professional's formal market value opinion for lending purposes (costs $300–$700, legally binding in your refinance)
- Tax Assessment: Local government's estimated value for property tax calculation (much lower than market value, free to homeowners)
- Zillow/Redfin Estimate: Automated algorithm-based guess with a wide margin of error (free, not acceptable to lenders)
Only an appraisal counts for refinancing.
Common Issues That Delay or Tank an Appraisal
Appraisal comes in low. If your home appraises below your refinance loan amount, you have options: renegotiate the loan amount, request a second appraisal (costs $300–$700 more), provide evidence the appraiser missed upgrades, or walk away.
Comparable sales don't exist nearby. In fast-appreciating or rural markets, appraisers may struggle to find similar recent sales. Expect 5–10 additional days.
Major repairs are needed. Visible roof damage, foundation cracks, or mold will trigger further inspection requests or valuation reductions.
Inconsistent property records. If your home's square footage or bedroom count differs between the appraiser's measurement and public records, the lender may require clarification.
Preparing for Your Appraisal
You can't inflate your home's value, but you can ensure the appraiser sees it in the best light:
- Clean and declutter before the inspection
- Document recent major upgrades (new roof, HVAC, kitchen remodel) with receipts and photos
- Fix obvious maintenance issues: broken windows, torn screens, oil stains on driveway
- Provide a list of improvements the appraiser may miss
- Make sure the property is accessible and safe
Finding a Trusted Appraiser
Your lender typically orders the appraisal, but some let you choose from their approved list. Look for appraisers who are:
- Licensed in your state (mandatory)
- Experienced with your home type in your specific area (not just the general region)
- Transparent about fees upfront
- Available within your refinance timeline
If you're comparing providers, Mercoly helps you find and evaluate trusted residential appraisal professionals in your area.
Frequently Asked Questions
Q: Can I dispute a low appraisal? Yes—you can request a second appraisal, provide evidence of recent upgrades the first appraiser missed, or appeal if you believe the comparable sales were inappropriate.
Q: How long is an appraisal valid? Most appraisals are valid for 120 days from the report date; after that, your lender may require an update if refinance closing is delayed.
Q: Do I need an appraisal for all refinances? No—cash-out and rate-and-term refinances typically require one, but streamline refinances through the same lender may waive the appraisal requirement.
Start your refinance by requesting quotes from multiple appraisers to compare timelines and credentials before committing.