“How often should we be putting money into the house?” is one of the questions we get most often from clients who own their home long-term. There isn’t one number, but there is a sensible framework. Here’s how we think about it.
There are three different kinds of “home improvement”
Treating all spending on the house as the same category is the mistake that makes the question hard to answer. In reality, there are at least three buckets:
- Maintenance. Things that wear out and need replacing: roof, paint, water heater, HVAC, gutters, deck refinishing, caulk and weatherstripping.
- Updates. Catching the house up to current standards: kitchen and bath refreshes, lighting upgrades, flooring, windows, exterior trim and siding repairs.
- Improvements. Real additions of value or function: square footage, finished basements, primary suite expansions, ADUs, full reconfigurations.
Each bucket runs on a different timeline and a different budget. Lumping them together is why people end up surprised by what their house actually costs to own.
Maintenance: every year, automatically
Industry guidance has long suggested setting aside roughly 1 to 3% of the home’s value annually for maintenance. In the Portland metro market, where a typical single-family home runs in the $500K to $900K range in the mid-2020s, that’s $5,000 to $25,000 a year, averaged. Some years you’ll spend nothing. The year the furnace dies, you’ll spend it all at once.
Big-ticket maintenance items have predictable lifespans:
- Composition shingle roof: 20 to 30 years
- Exterior paint: 7 to 12 years in the Pacific Northwest climate (south- and west-facing walls go first)
- Water heater: 10 to 15 years (tank), longer for tankless
- Furnace: 15 to 25 years
- AC condenser: 12 to 18 years
- Wood deck: refinish every 2 to 4 years, full rebuild at 15 to 25
- Vinyl windows: 20 to 30 years
The trick is that all of these are running on their own clocks at the same time. If you bought the house at age 15, the next decade will hit several of them. If you’re three years in on a new build, you have time before the bills start.
Updates: every 10 to 15 years per room, roughly
Kitchens and bathrooms age out fastest because they take the most use and because design standards shift the most. A 1995 kitchen looks like a 1995 kitchen, even if the cabinets are technically fine. A 2010 bathroom is starting to feel dated to a 2026 buyer.
A reasonable rhythm for an owner who plans to stay in the house long-term:
- Kitchen refresh or remodel: roughly every 15 years
- Primary bathroom: every 12 to 15 years
- Secondary bathrooms: every 15 to 20 years
- Interior paint: every 7 to 10 years (sooner for high-traffic rooms)
- Carpet: every 8 to 12 years
- Hardwood floors: refinish at 15 to 25, depending on wear
None of those is a hard rule. They’re averages from what we see across the houses we work on.
Improvements: when life changes, not on a schedule
The biggest mistake we see is people doing additions or major reconfigurations on a “this is what we always wanted” timeline, rather than a “this fits how we live now” timeline. A 600 square foot addition is a $200K+ project in the current Portland market. It pays you back in livability if it solves a real problem and meets you where you are. It doesn’t pay you back if it’s a project for the sake of having a project.
Triggers we see for improvement work that actually makes sense:
- A new child or a parent moving in
- Working from home becoming permanent
- An aging-in-place reconfiguration (primary suite on main floor, no-step entry, accessible bath)
- Energy retrofit (heat pump, insulation, new windows) when the existing systems are at end of life
- Resale prep, but only when the work pays back the cost (not always)
Should I do it all at once or in phases?
The economics usually favor doing related work together. Demolition, framing, drywall, paint, and inspection cycles all have fixed costs. Spreading a kitchen remodel over three years means paying those fixed costs three times. The trade-off is disruption: a single $180K kitchen-and-baths project is a few months of upheaval; three separate $80K projects spread over years are repeated, smaller upheavals.
The right answer depends on cash flow, how long you’ll stay in the house, and how much disruption your family can absorb. We help clients think through both paths during the planning phase.
Where the value actually lives
Among the rooms and systems you can spend money on, three consistently return value (in resale and in day-to-day livability): kitchen, primary suite, and the front-of-house exterior (paint, roof, entry door, landscape). Spend on those first. Bedrooms, basements, and bonus rooms can wait until those are right.
The honest summary
If you treat your house like a car you have to keep running, you’ll spend something every year and something significant every 10 to 15 years per major room or system. If you ignore it, the bills don’t go away. They just arrive all at once, usually right before you’re trying to sell. The clients who are happiest with their houses are the ones who set aside maintenance money every year and plan updates on a rolling schedule, not a panic schedule.
If you’d like a walk-through of where your house is on each of these clocks, get in touch. We can look at the major systems, the rooms that are aging, and give you a realistic priority list for the next five to ten years.