Seam and Pier Sealing
A barrier is only as good as its seams. We overlap sheets, tape every seam with purpose-made tape and cut and seal collars around piers, posts, pipes and wires. These small details are what make the difference between a loose cover and a sealed system.
- SeamsOverlapped and taped
- DetailsPiers, posts, pipes and wires
- TapePurpose-made seam tape
- CheckEvery joint inspected
What is included
- 1Airtight detailsSmall gaps are closed.
- 2DurableTape and collars made for the job.
- 3Neat workClean cuts and edges.
- 4CheckedWe walk every seam.
From the first call to a dry crawl space
Our partner experts repair and protect crawl spaces in cities across the country. Find yours below and ask for a free estimate.
- 1PlanWe map every seam and obstacle.
- 2CutCollars and patches are cut to fit.
- 3TapeSeams and details are taped.
- 4InspectWe check each joint.
Is this the right service for you?
- A crawl space with an old liner that gaps
- Owners who found open seams
- A newly laid barrier needing detail work
- Anyone chasing leftover odor
Common questions
Why not just overlap the plastic?
Overlap helps but tape and sealant make it durable and tight.
Do piers need special work?
Yes. Each pier gets a cut collar so there are no gaps.
Can you fix an old liner?
Often yes, if it is in good shape. We inspect and tell you.
Services that pair with this one
Vapor Barrier InstallationA heavy, reinforced vapor barrier laid across the floor and sealed at every seam and pier.See the service 
Vapor Barrier Repair and ReplacementTorn, thin or bunched plastic fixed or replaced with a heavy-duty barrier that lasts.See the service 
Crawl Space EncapsulationSeal the floor, walls and vents so ground moisture and outside air stay out of the space under your home.See the service Find your city
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Find out what is under your house.
Call or text, or send the form for your free estimate. Tell us what you notice, from smells and cold floors to water and sagging.