FOR CERTIFIED HOME INSPECTIONS & MORE

Life Span

  • Houses are built to last a life-time, but certain components wear out periodically and will need to be replaced on a fairly regular time cycle.
  • The following life cycles are not personal opinions, but are based upon the individual manufacturers suggested service-life of these components. The life-expectancy of some components may vary with the severity of the local weather, the design, the type and quality of the original components, the quality of the installation, and the level of maintenance that the component has received.
  • Also, please remember that these components and systems are like people: some fail early in life and some last much longer than we ever thought possible.
Air Conditioning

Years

1. Compressors

6-12

2. Blowers / Fans

10-15

3. Heat Pump / Condenser (the outside unit)

8-15

Heating

Years

4. Forced-Air, Gas Furnace

15-20

5. Electric Furnaces(Heating Elements may need periodic replacement)

20-25

6. Electric Baseboard Heaters

10-15

7. Gas Boilers (Cast Iron)

30-60

8. Gas Boilers (Steel)

20-35

9. Radiators / Expansion Tanks

30-45

Plumbing Systems

Years

10. Hot Water Heaters

10-15

11. Galvanized Water Supply Lines(With spot replacement of some sections)

35-65

12. Copper Water Supply Lines

60-100

13. Plastic Supply Lines (PVC, CPVC, ABS, PEX)

?

14. Cast Iron Drain Lines

45-90

15. Copper Drain Lines

50-100

16. Plastic Drain Lines (PVC, ABS)

?

17. Builders Grade Faucets, etc.

20-30

18. Builders Grade Tubs, Toilets, Sinks, etc.

35-50

Appliances

Years

19. Garbage Disposal

5-10

20. Dishwasher

10-15

21. Gas Ranges, Ovens & Cook-Tops

20-35

22. Electric Ranges, Ovens & Cook-Tops

15-25

23. Built-In Microwave

5-10

24. Trash Compactor

6-12

25. Refrigerator

10-20

26. Humidifiers (with regular maintenance)

5-10

27. Laundry Equipment (Washers/Dryers)

10-20

Roofing / Guttering

Years

28. Aluminum / Galvanized Gutters (if well maintained)

15-25

29. Composition Shingle Roof (1st layer of roofing)

16-20

30. Composition Shingle Roof (2nd roof on top of existing shingles)

12-16

31. Roll Roofing (composition)

6-10

32. Wood Shake Roofing

15-20

33. Wood Shingle Roofing

14-18

34. Slate Roofing(depends on type of slate and quarry they came from)

45-150

35. Clay/Tile/Concrete Roofing

30-50

36. Metal Roofing(as long as kept from rusting)

35-70

Interior

Years

37. Paint (Wall, Ceiling, Trim)

5-10

38. Drywall (Walls & Ceilings)

50-?

39. Plaster (Walls & Ceilings)

60-90

40. Ceramic Tile:Wet Bead

Mastic Bead

45-80

15-20

41. Carpeting

10-12

Exterior

Years

42. Exterior Paint

5-10

43. Wood Decks

12-16

44. Aluminum Siding

25-40

45. Vinyl Siding

30-45

46. Hardboard / Composition Siding(depends on moisture entry)

15-40

47. T-111, Wood or Plywood

20-40

48. Stucco (Hardcoat Conventional)

60+

Wells & Septic Systems

Years

49. Well Pumps, Tanks, Sumps

15-25

50. Septic Leaching Fields(depends on factors such as regular maintenance)

10-50

51. Concrete Septic Tank

20-40

52. Steel Septic Tank

15-30