Full window packages and roof replacements often run $8,000–$25,000+ depending on square footage, materials, tear-off layers, and permits. Sales teams from national remodelers and local roofers frequently partner with GreenSky-style lenders, Synchrony, or Wells Fargo dealer programs and present a tablet before you have three cash bids.
Use the same four numbers as Comparing financing offers. Broader remodel context: Paying for home improvements and the home improvement vertical. HVAC changeouts use the same pattern: How to compare HVAC financing.
Paths that usually show up
| Path | Fits when | Main risks |
|---|---|---|
| Cash / remodel HYSA | Non-emergency; fund is separate from reserves | Do not empty the emergency fund for a planned exterior project |
| Credit-union or bank personal loan | Fair credit; unsecured OK | Origination fees; term length |
| HELOC / home equity loan | Equity + longer stay | Lien on the house (Home equity loan vs HELOC) |
| Contractor / manufacturer promo | Convenience after a solid bid | Dealer fees in price; deferred interest; hard pull at tablet |
| Store/dealer card | Small materials only | High go-to APR; promo cliffs |
Storm damage and active leaks change urgency—not the need for a written scope and an APR question. “Today-only” discounts that vanish unless you finance are a pause signal.
True 0% vs deferred interest
Many exterior “0% for 12/18/60 months” offers are deferred interest: if any promo balance remains at the deadline, interest is charged back to day one at a high APR. True 0% installment loans amortize without that clawback—confirm in writing. Promo literacy: “0% intro APR” offers. Ask:
- Is interest waived each month you pay on time, or deferred until the end?
- What is the go-to APR if the promo is missed?
- Is the financed amount equal to the cash price, or higher?
Worked example
Riley needs a $14,800 asphalt roof tear-off (second bid; first quote was $17,200 for the same scope).
| Option | Amount financed | Terms | Rough outcome |
|---|---|---|---|
| A – cash from remodel HYSA | $14,800 | Pay in full | $0 interest; emergency fund left alone |
| B – credit union personal loan | $14,800 | 10.49% APR, 60 months, $0 origination | ~$318/mo; ~$4.3k interest if held full term |
| C – contractor tablet | Sticker $14,800 → $16,200 financed | “0% for 18 months” deferred interest at 27.99% if anything left | Must clear ~$900/mo to beat the cliff; $1,400 dealer fee baked in |
Riley picks A if the remodel fund covers it. Otherwise B usually beats C: no dealer markup and no deferred-interest trap. Soft-prequalify at the credit union before the tablet hard pull (Hard vs soft credit checks).
Line items to demand on the bid
- Materials (shingle brand/class, underlayment, window U-factor/SHGC)
- Tear-off layers, disposal, and decking replacement allowance
- Labor, permit, and inspection fees
- Flashing, ventilation, and drip-edge details (change-order zone on roofs)
- Manufacturer and workmanship warranty length—priced separately from financing
- Cash price vs financed price for the same scope
Insurance claim roofs add adjuster paperwork; do not finance a supplemental scope you have not approved in writing.
Checklist
- Get at least two written cash bids with material specs.
- Write cash price, amount financed, APR, term, total of payments.
- Label the promo: true 0% vs deferred interest.
- Soft-compare a credit-union loan or HELOC before any hard pull.
- Strip add-ons you can buy later (gutter guards, cosmetic upgrades).
- Keep emergency reserves separate from the project plan.
- Withhold final payment until inspection/permit sign-off when required.
Educational only. Not an offer of credit, contracting advice, or a recommendation of any installer or lender. Prices, insurance claim rules, and loan terms vary by market and issuer.