Repair Option Comparisons

When two contractors recommend two different fixes, these guides explain what actually separates them: upfront cost, lifespan, disruption and the conditions each one suits.

Compare repair options side by side

• AC Repair vs AC ReplacementUse the '$5,000 rule': multiply the age of your AC unit by the repair estimate — if the result exceeds $5,000, replace instead of repair. In practice, that means repair almost anything on a unit under 10 years old, and lean toward replacement for units 12-15+ years old facing a compressor, coil, or refrigerant-system failure.
• Air Duct Cleaning vs Air Duct SealingIf your complaint is dust, allergies, or visible debris blowing from vents, duct cleaning addresses that directly. If your complaint is high energy bills, uneven room temperatures, or weak airflow at distant vents, duct sealing fixes the actual cause — leaky ducts losing 20-30% of conditioned air before it reaches the room — and cleaning alone won't touch that.
• Crawl Space Encapsulation vs Dehumidification OnlyIf you have standing water, exposed dirt, or visible ground moisture in the crawl space, encapsulation is the only real fix — a dehumidifier alone can't outpace water actively evaporating from soil. If the crawl space is already dry with just seasonal humidity swings and no ground moisture, a standalone dehumidifier is a reasonable, much cheaper first step.
• Drain Snaking vs Hydro JettingFor a single, occasional clog like a hair blockage or a toilet stoppage, snaking is faster and cheaper and gets the job done. If you have recurring clogs in the same line, grease buildup, or root intrusion, hydro jetting clears the entire pipe wall rather than just punching a hole through the blockage, and it's the better long-term fix.
• Electrical Panel Repair vs Electrical Panel ReplacementReplace immediately, regardless of cost, if you have a Federal Pacific Electric (FPE), Zinsco, or Challenger panel — these brands have documented breaker failure risks that make them a safety hazard, not a repair candidate. Short of that, repair a single bad breaker or loose connection on an otherwise modern, adequately sized panel; replace if you're out of capacity for new circuits (EV charger, hot tub, addition) or the panel is undersized for your home's current electrical load.
• Foundation Piers vs Wall AnchorsThese solve two different problems, not competing options for the same one. If your foundation is settling or sinking (cracks widening, doors sticking, uneven floors), you need piers driven to load-bearing soil or bedrock. If your basement walls are bowing or leaning inward from soil pressure, you need wall anchors (or carbon fiber straps for less severe bowing) — a structural engineer's inspection is the right way to determine which condition you actually have.
• French Drain vs Sump PumpIf your basement has an active water table or you get flooding during heavy rain with no gravity fall to daylight, you need a sump pump (often paired with an interior drain tile that feeds it). If water is simply running toward your foundation from grading, gutters, or a slope above the house, a French drain that redirects it away by gravity is cheaper and needs no power or moving parts.
• French Drain vs Surface Drainage (Swales & Grading)If water is pooling on top of the ground near your foundation after rain — visible surface runoff — regrading and swales are the simpler, cheaper first fix and address the actual cause. If water is seeping up from below, staying wet well after rain stops, or you have a high water table, a French drain (which intercepts subsurface water) is what actually solves it; surface grading won't touch water that's already underground.
• Furnace Repair vs Furnace ReplacementA cracked heat exchanger is a non-negotiable replacement — it's a carbon monoxide risk and cannot be safely patched. Short of that, repair a furnace under 15 years old for single-component failures like an igniter, flame sensor, or blower motor. Replace once the unit is past 15-20 years or repair costs approach 50% of a new system's price.
• Gutter Guards vs Regular Gutter CleaningIf you have heavy tree coverage, can't safely access your roof, or want to minimize the number of times someone climbs a ladder each year, gutter guards pay for themselves within a few years and reduce (not eliminate) cleaning frequency. If you have minimal nearby trees or are on a tight budget, twice-yearly professional cleaning is cheaper in year one and remains a reasonable ongoing cost for many homes.
• Heat Pump vs FurnaceIn climates where winter lows rarely drop below 20-25°F, a heat pump alone is typically the more efficient, lower-operating-cost choice and handles cooling too. In colder climates with regular sub-freezing extended cold snaps, a dual-fuel system (heat pump paired with a gas furnace backup) or a furnace alone performs more reliably and avoids the efficiency drop-off heat pumps face in deep cold.
• Interior Waterproofing vs Exterior WaterproofingIf your foundation walls are structurally sound and the issue is seepage through cracks or hydrostatic pressure at the base, interior waterproofing (drain tile plus sump pump) is faster, cheaper, and just as effective for most homes. Choose exterior waterproofing only if you have bowing walls, active exterior erosion, or you're already excavating for another reason like a full foundation repair.
• Mold Removal (DIY Cleaning) vs Professional Mold RemediationThe EPA's own guideline is the deciding line: mold covering less than about 10 square feet (roughly a 3x3-foot patch) can be cleaned by a homeowner with detergent and water. Anything larger, mold from a sewage-contaminated source, mold inside HVAC ductwork, or mold behind walls needs professional remediation with containment and air scrubbing.
• Mudjacking vs Polyurethane Foam LevelingIf budget is the primary concern and the settled slab is a driveway, patio, or walkway with no urgency, mudjacking gets the job done at a lower price. If you want a faster, lighter, longer-lasting fix — especially for a slab near the foundation, a pool deck, or an area where the underlying soil is already marginal — polyurethane foam leveling is worth the higher cost because it won't add the extra weight that can cause the same settling to recur.
• Roof Repair vs Roof ReplacementRepair if the damage is localized (one leak, a section of missing shingles, damaged flashing) and the roof is under about 15 years old with 80%+ of its shingles in good condition. Replace if the roof is at or past its material's expected lifespan, damage is spread across multiple areas, or you're seeing granule loss and curling shingles throughout rather than in one spot.
• Sewer Line Repair vs Sewer Line ReplacementIf a camera inspection shows one isolated problem — a single crack, one bad joint, or a short section of root intrusion — repair (including trenchless spot repair or a localized dig) is the right call. If the pipe shows widespread bellying, multiple breaks, is cast iron or clay pipe over 50 years old, or has collapsed sections, full replacement is more cost-effective than repeated repairs.
• Structural Engineer vs Foundation ContractorFor any foundation concern beyond hairline cosmetic cracks, start with a licensed structural engineer. The $400-$900 fee buys an independent diagnosis. The engineer earns nothing from the repair, so there is no reason to oversell one. Once you have the report, take the recommended scope of work to foundation contractors and compare bids for the same repair.
• Tank Water Heater vs Tankless Water HeaterIf you have a large household with simultaneous hot water demands and can afford the upfront cost, tankless pays off in efficiency and continuous hot water. If you're on a budget, have a smaller household, or your gas line/electrical panel can't support the tankless unit's higher demand without expensive upgrades, a tank heater remains the practical choice.
• Water Heater Repair vs Water Heater ReplacementRepair if your water heater is under 6 years old and the issue is a single component like a thermostat, heating element, or thermocouple. Replace if the unit is 8+ years old (the typical lifespan ceiling), if the tank itself is leaking or rusted, or if repair costs would exceed roughly half the price of a new unit.
• Window Repair vs Window ReplacementRepair if the window frame is sound and the issue is a broken seal, failed hardware, or a single cracked pane — glass and seal repairs are far cheaper than full replacement. Replace if the frame itself is rotted, warped, or single-pane, or if you're seeing persistent drafts and condensation across multiple windows, since repeated single-window repairs on old frames rarely deliver comfort or energy improvements.