Should I buy a house with a crawl space?

Saturday, July 7, 2018

New houses are still constructed with an elevated wood floor over a crawl space in other parts of the country, but here in North Florida homes built after the 1950s have a concrete floor slab on the ground or a concrete slab on fill dirt in a stem wall. So, when you are talking about a crawl space house, you mean one that is at least a half-century old.

    Everyone who owns a house with a crawl space agrees that they are not a pleasant place to explore: dark and musty, often with wires, pipes and ducts obstructing access, like in the photo above.

   A crawl space can be anywhere from 12-inches to several feet tall. The best way to understand one is to think of it as a mini-basement, because a crawl space has many of the same pros and cons as a basement: 


  • Easy access for plumbing repair to both supply and drain piping that would otherwise be under a concrete slab in a newer home. Running new electrical wiring is easier too.
  • An elevated floor makes a home look more substantial.
  • Some crawl spaces are suitable for storage, but the moisture in the soil keeps the air in a crawl very humid in Florida unless well ventilated.
  • Insulation can be installed under floor and maintained as necessary.


  • If you Google® “crawl space,” the first listings you will see on the page are ads for crawl space repair specialists, because of the many moisture related problems that crawl spaces in Florida are prone to have. Water vapor rises continuously out of the soil and must be must be exhausted through either passive or active ventilation, otherwise wood rot and mold growth develop. An alternative is to have a professional seal the ground with plastic sheeting.  
  • An elevated wood floor is not as handicapped-accessible as a concrete slab on grade.
  • Critters like raccoons and snakes see a crawl space as a potential comfy, secure home. The access panel and vents must be carefully maintained, and examining a crawl space can be a wildlife safari adventure.
  • Subterranean termites can run mud tubes up the inside surface of the walls and columns undetected in a crawl space. Most older homes have metal termite guard strips installed to deter them, but they are not 100% effective. 

    Also, see our blog post What does a home inspector look for in the crawl space under a home? 

• • • • • • • • • • • • • • • • • • • • • • • • • • • • • 

Here’s links to a collection some of our other blog posts about “SHOULD I BUY A…”:

Should I buy a house that has hurricane flood damage?

 Should I buy a house near a high-voltage power line?

• Should I buy a house with popcorn ceilings? 

Should I buy a house that has been remodeled/renovated without building permits or has open permits? 

Should I buy a house with structural problems?

Should I buy a house with fire damage? 

Should I buy a house that has had foundation repair?  

Should I buy a foreclosure house if the bank refuses to turn on the utilities (electric, water, gas)?

What should I look for when buying a former rental house? 

What should I look for when buying a house that is being "flipped" by an investor seller? 

Should I buy a house with strong cigarette odor?

• What do I need to know about buying a foreclosure?  

• Should I buy a fixer-upper? 

• Should I buy a house with a high radon level? 

• Should I buy a house with galvanized steel water pipes? 

Should I buy a house with asbestos siding? 

Should I buy a house that has had foundation repair?

    Visit our “SHOULD I BUY A…” and EXTERIOR WALLS AND STRUCTURE pages for other related blog posts on this subject, or go to the INDEX for a complete listing of all our articles.

How To Look At A House

McGarry and Madsen's home inspection blog for buyers of  

site-built, mobile/manfuactured and modular homes






Air Conditioner & Furnace Age/Size




Aging in Place


Click Below  

for Links

to Collections

of Blog Posts

by Subject


Doors and Windows


Energy Efficiency

Fireplaces and Chimneys

Heating and Air Conditioning

Home Inspection

Hurricane Resistance

Electrical Receptacle Outlets

Electrical Panels

Garages and Carports

Common Problems

Exterior Walls & Structures



Life Expectancy

Mobile/Manufactured Homes

Older and

Historic Houses

Mold, Lead & Other Contaminants

Modular Homes

Metal Roofs



Pool and Spa

Roof and Attic




"Should I Buy A..."


Termites, Wood Rot

& Pests

Structure and Rooms


Water Heaters

Water Heater Age

Septic Tank Systems

Plumbing Pipes


When It First

Became Code

Park Model Homes

Shingle Roofs


Wind Mitigation Form

"Does A Home


"What Is The Difference Between..."


Concrete and

Concrete Block


Rain Gutters


Crawl Spaces

Building Permits

Clay Soil




HUD-Code for

Mobile Homes

Flat (Low Slope) Roofs

Sprinkler Systems

4-Point Inspections

Frequently Asked Questions (FAQ)

Building Codes

Inspector Licensing

& Standards

Washers and Dryers



Electrical Wiring

Plumbing Drains

and Traps

Smoke & CO Alarms

Top 5 results given instantly.

Click on magnifying glass

for all search results.



Electrical Switches


Water Intrusion

Electrical - Old

and Obsolete

Foundation Certifications

Tiny Houses

About Us