6 Advantages to Sealing a Crawlspace

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Crawlspaces can be sealed multiple ways. Sometimes, the process involves laying down thick sheets of plastic. Insulation may also be used. By any method, a sealed crawlspace is a safer, more efficient crawlspace. Find out why you should get yours sealed to improve your home and your health in multiple ways.

1. Reduced Energy Costs

A chalkboard with a house and dollar signs coming out of the chimney.

Sealing the crawlspace of your house will add up to big savings on your energy bills. If there's a pocket of cold air right under your home, it's going to take a lot more effort for your heating system to keep the house above nice and warm. Sealing the crawlspace will help keep the cold air out to prevent heat loss. This will also block hot air in summer that can throw your air conditioning system into costly overdrive. Even in small amounts, reducing your overall energy costs is a big help to any home budget. Sealing your crawlspace will have a big impact on these costs, and the project will begin paying for itself right away.

2. Accessibility

Leaves, sticks, trash, and debris from the outside world can get into a crawlspace that isn’t properly sealed. This creates a mess that not only invites pest habitation, but makes the crawlspace much harder to access. If work needs to be done on your drain lines or other infrastructure in the crawlspace, cleaning out the crawlspace will add extra time to the job. Professionals you hire will charge you for every minute they’re on the property, even if that means they’re cleaning out the crawlspace.

3. Waterproofing

Bugs in dark, moist soil.

A sealed crawlspace is a more waterproof crawlspace. This area under the house is used for drain lines, electrical wires, and duct work. Water and moisture can create damage to this essential infrastructure. Moisture also attracts insects and pests that may gnaw on infrastructure elements or create other crawlspace damage that winds up costing you big bucks. Seal it up, and you're working to prevent all these problems.

4. Structural Safety

Water that seeps into the crawlspace isn't just a habitat for pests and a hazard for your home systems. Water can cause soil erosion that compromises the structural integrity of your home. Keeping the crawlspace dry by sealing it will help prevent structural damage that can occur over time with a moisture-prone crawlspace. Structural damage adds up to enormous repair costs and compromises the safety of everything in the house above the crawlspace.

5. Mold Prevention

A close-up image of yellow and black mold.

Water and moisture create mold growth, particularly in dark, subterranean environments like a crawlspace. Mold and bacteria can create health problems and damage your pipes and other infrastructure systems in the crawl, costing you big bucks to fix. Prevent mold before it ever starts to grow and cause you problems by sealing your crawlspace and keeping moisture out altogether.

6. Improved Personal Health

Sealing your crawlspace well prevents it from being a conduit for air that gets in from the outside world. Not only will this prevent humidity and condensation, but it will prevent problems with your indoor air quality. The crawlspace under a house can affect the quality of the air in the home above, so shouldn't you make sure your crawlspace air is as healthy as possible? The sealed system will help you maintain a closed, safe system. This will also prevent unpleasant outdoor odors from entering your home through the crawlspace.

Sealing a crawlspace can be a big undertaking, depending on the current conditions of your crawlspace and the amount of materials it will take to completely seal it off. However, the investment will definitely end up paying off in energy savings and home maintenance prevention. Take the time now to seal your crawlspace properly, and avoid spending even more money on big crawlspace and infrastructure problems in the future.