An Alta Vista couple sat at our quote meeting last month with a fixed-price contract in hand and asked the question that comes up on roughly half our jobs: "What is the smartest way to actually pay for this?"
There are seven realistic options for an Ottawa homeowner financing a major renovation in 2026. Each one has a real rate, a real cost over five years, and a specific situation it fits. Below is the honest comparison, with the math framed around posted Big Five rates as of April 2026.
1. HELOC (home equity line of credit)
A HELOC is a revolving line of credit secured against your home, capped at 65 to 80 percent of appraised value minus what you still owe on the mortgage. You draw what you need, when you need it, and pay interest only on the drawn portion.
Rate in April 2026: prime + 0.5% to prime + 1.0%, putting most HELOCs between 6.45% and 6.95%.
What it costs over 5 years if you carry the full balance the whole time: a substantial interest figure with interest-only payments, considerably less if you pay it down on a 5-year amortization schedule. The rate is the number to compare, since the interest total scales directly with the balance and the term.
Where it fits: phased renovations where you draw money over 8 to 14 months, or anyone who plans to pay it back aggressively in the first two years.
2. Mortgage refinance
You break your existing mortgage and re-mortgage at a higher principal that includes the renovation budget. The renovation money rolls into your mortgage at the going fixed or variable rate.
Rate in April 2026: 4.79% to 5.49% on a 5-year fixed for an insured renewal, slightly higher for uninsured high-ratio.
What it costs at 5.19% over 25-year amortization: a manageable monthly payment, but a meaningful total interest figure if held to maturity over the 5-year term, plus continuing costs after renewal. Compare on the rate, since the total scales with the amount you add.
Catch: if you break a closed mortgage mid-term, the penalty is the greater of three months interest or interest rate differential. On a sizeable mortgage at 4.5% with three years left, the IRD penalty can be steep. Always run the penalty number before refinancing mid-term.
Where it fits: a renovation at the natural mortgage renewal date, or when current mortgage rate is higher than today's offered rate so the penalty is small or zero.
3. Second mortgage
A second mortgage is a separate loan secured by your home, sitting behind your first mortgage in priority. Used when the first mortgage has IRD penalties too painful to break, or when the borrower's credit makes a HELOC hard to qualify for.
Rate in April 2026: 7.99% to 12.99% from B-lenders, sometimes higher from private lenders. Plus lender fees and legal fees that the first-mortgage options do not carry.
What it costs at 9.99% with monthly payments: a high total interest figure over 5 years, on top of closing costs. It is the most expensive of the secured options.
Where it fits: rarely. Only when the IRD penalty on a first-mortgage refinance exceeds the interest cost premium of the second, or when credit issues block the cleaner options.
4. RRSP Home Buyers' Plan (does not apply)
Worth saying clearly: the RRSP HBP is for first-home purchase only. It cannot be used to finance a renovation on a home you already own. Some homeowners hear about it and assume it covers renos. It does not.
5. Canada Greener Homes Loan
The federal Canada Greener Homes Loan offers an interest-free loan over 10 years for energy retrofits: insulation, heat pumps, windows and doors, solar, water heaters. It does not cover kitchens, bathrooms, basements, or general renovations.
Rate: 0%. Repayment: 120 monthly installments after the work is done.
What it costs: you repay exactly what you borrow. The 0% interest is genuine, which makes it the cheapest money on this list for any eligible portion.
Where it fits: any portion of your renovation that includes envelope upgrades. If you are insulating an attic, replacing windows, or adding a heat pump as part of a larger reno, the Greener Homes loan should fund that portion. Combine it with a HELOC or refinance for the rest.
Stack your financing strategically
The smartest borrowers do not pick one option. A Westboro renovation we ran in late 2025 used three: a Canada Greener Homes Loan for the heat pump and window replacement portion, a HELOC for the kitchen and bathroom work, and cash for fixtures and finishes. The blended rate ended up around 4.1% with the interest-free portion factored in. A pure HELOC would have run the family 6.7%.
6. Unsecured personal line of credit
A personal line of credit is unsecured, no home appraisal needed, approved against your income and credit score. Rates are higher than a HELOC because there is no collateral.
Rate in April 2026: prime + 2.0% to prime + 5.0%, putting most lines between 7.95% and 10.95%.
What it costs at 8.95% with interest-only: the highest interest total on this list, because the rate is high and unsecured. Most banks cap unsecured personal lines well below what a major renovation needs, so larger projects usually have to go secured.
Where it fits: small-to-mid renovations when the homeowner does not have enough equity for a HELOC, or wants to skip the appraisal and legal step. Not the right tool for a large renovation.
7. Renovation-specific construction draw mortgage
Less common but worth knowing about. Some lenders (TD, RBC, Scotia, certain credit unions) offer "purchase plus improvements" or renovation construction mortgages that advance funds in stages tied to inspection milestones, similar to a new-build construction mortgage.
Rate: same as a regular mortgage, 4.79% to 5.49% fixed.
Catch: the bank pays the contractor in draws, not the homeowner directly. Each draw requires an appraiser visit, which carries its own fee per draw. Most contractors do not love this structure because cash flow gets uneven, but it can work for fixed-price contracts where the draw schedule matches the milestone schedule.
Where it fits: large renovations where the homeowner does not have the equity for a HELOC large enough, or when the renovation is being done at the time of purchase (Purchase Plus Improvements).
The five-year cost comparison
Here is how the options rank by interest cost over five years, assuming you carry the balance for the full term and make minimum payments. Because the dollar total scales directly with how much you borrow, the rate is the right number to compare. April 2026 rates, ordered cheapest to most expensive.
- Canada Greener Homes (eligible portion only): 0% interest. Cheapest by far.
- HELOC at 6.75%, paid down on a 5-year schedule: moderate interest, fully paid off at the end.
- Refinance into mortgage at 5.19%: lower rate, but interest continues past the 5-year term.
- Construction draw mortgage at 5.19%: same rate as a refinance, plus draw inspection fees.
- Second mortgage at 9.99%: high interest plus lender and legal closing costs.
- HELOC at 6.75%, interest-only: higher total because the principal never comes down.
- Personal line of credit at 8.95%: the most expensive, and unsecured.
The cheapest option is not always the right option. The right option is whichever one fits your timeline, your equity position, and how aggressively you can pay it back.
Three Ottawa scenarios and the right call
Scenario A: Kanata family, kitchen renovation, mid-value home, moderate mortgage balance, 18 months left on a 4.29% term. Best call: HELOC. The IRD penalty on the existing mortgage is modest, but the HELOC at prime + 0.5% is cheaper for an 18-month draw period, and they will refinance at renewal anyway.
Scenario B: Glebe couple, full main-floor renovation, high-value home, mid-size mortgage, just renewed at 4.99% three months ago. Best call: a Canada Greener Homes Loan for the heat pump and window replacement portion, plus a HELOC for the rest. Refinancing the new mortgage to add the renovation would mean breaking a fresh term and eating a heavy IRD penalty. Not worth it.
Scenario C: Orleans empty-nesters, bathroom and accessibility renovation, mid-value home, mortgage fully paid off. Best call: HELOC, but only if they plan to pay it down within 3 years from sale of an investment property. If not, the unused mortgage capacity argues for a small new mortgage at the lower rate. The lack of any existing mortgage makes either option clean.
What we tell clients
We are renovators, not mortgage brokers. But after twenty years of fielding "how should I pay for this" questions, four rules hold:
- Run the IRD penalty before you consider refinancing mid-term. It is usually the deciding number.
- If any portion of the work qualifies for the Canada Greener Homes Loan, take it. Free money.
- HELOC is the default for most Ottawa homeowners. Cheaper than a personal line, more flexible than a refi, no penalty issues.
- A second mortgage or private lender is almost never the right answer unless credit issues block everything else. The cost premium is real.
Our renovation financing page covers what we accept as deposit and progress-payment structure, plus how a HELOC or draw mortgage syncs with our fixed-price contract milestones. Talk to a mortgage broker before you sign a renovation contract; talk to us before you commit to a financing structure. Both calls are free. Phone 613-862-4555.