Short answer: a home equity loan hands you one lump sum at a fixed rate and a fixed payment; a HELOC hands you a credit line you draw on as needed, at a usually variable rate, paying interest only on what you have drawn. Both borrow against the same equity, both sit behind your first mortgage as a second lien, and both put your home up as collateral. The right choice is the one whose shape matches the expense.
Your equity is your home's current value minus everything you owe on loans secured by it. A home equity loan converts part of that equity into cash once: the full amount lands at closing, and fixed principal-and-interest payments start the first month and never change. A HELOC converts part of the same equity into a limit: nothing is borrowed until you draw, you can repay and draw again during the draw period, and interest runs only on the drawn balance. Lenders typically cap the combined loan-to-value for both — first mortgage plus loan amount or line limit, against the home's value — at about 80–85%, with the exact cap varying by lender.
How the money arrives. Loan: one lump sum, spent or not, interest accrues on all of it from day one. HELOC: draws as costs arrive, so a project paid over six months is only ever charging you for the part already spent.
The rate. Loan: typically fixed — the payment you sign for is the payment you keep. HELOC: typically variable, tied to an index such as the prime rate, so the rate and the payment can rise over the life of the line.
The payment's shape over time. Loan: the same principal-and-interest payment from month one to the last. HELOC: typically interest-only payments during the draw period (typically 5 to 10 years), then a repayment period (typically 10 to 20 years) of principal plus interest on the remaining balance — a noticeably larger payment that belongs in the plan from day one.
What is shared. Both are second liens underwritten the same way, both carry closing costs and fees that vary by lender, and on both, falling behind can put the home itself at risk.
One expense of a known size — a roof, a fixed-price project, consolidating a fixed list of debts — fits the loan: you borrow exactly that amount, at a rate that cannot move, on a schedule that ends on a known date. Expenses that arrive in pieces or on an unknown schedule — a staged remodel, tuition across semesters, a reserve against surprises — fit the line: you pay no interest on money you have not needed yet. The waste to avoid runs both ways: interest on a lump sum sitting unspent in a checking account, or a variable-rate line used for a single fixed cost whose payment could have been locked.
Start from the amount the job actually costs and the months it will take to spend it — that, not the maximum the lender offers, sets the size. Then compare the full terms side by side: rate type, draw and repayment periods, closing costs, and any annual or early-closure fees. And keep the combined picture in view: the first mortgage plus the new loan or drawn balance is what you owe against the home, which is exactly the number your equity moves against every month.
A Homeowner HQ estimate is not an appraisal. The value and equity tracked in HQ are the preparation — they tell you roughly how much room you may have and whether applying is worth it — but the lender's own appraisal and underwriting decide the actual amount or limit you are offered, for a loan and for a line alike.
Your own agent sends a monthly value update from Homeowner HQ — the estimate, labeled as an estimate, with your equity beside it — and HQ runs on Amazon AWS. Realtors and lenders use the same HQ together: homeowners stay connected to their own agent, and the monthly trend is the honest way to watch what is moving the number. When borrowing against the home is on the table, that tracked value-and-equity line is the starting point you and your agent bring to the lender conversation.
Homeowners are always free. Realtors pay $25/mo to join and lenders join at the $5/mo founding rate, at any book size, with no setup fee; sending messages inside HQ is a $100/mo unlock ($125/mo total for realtors, $105/mo total for lenders). A lender-sponsored realtor joins for $0.
Homeowner HQ is an AI-powered marketing department for agents and lenders — a relationship and revenue engine, not a homeowner database. A homeowner's record routes them back to their own agent; it is never sold and never shown to lenders.