Compare crawl space contractors in Ohio

Local planning and hiring guidance

Compare company-reported crawl-space services, contact locations and project scope in Ohio. The listings have documented contact cities in Southwest, Central, Northeast and Northwest Ohio. It is a limited starting point for research, not a complete statewide inventory or a ranking.

Start here: Prepare for an inspection · Find a regional starting point · Compare proposed work · Browse Ohio listings.

A contact city does not establish a staffed, visitor-accessible office or coverage throughout the surrounding county. A company’s stated service area also does not confirm that every listed service is available at your home. Confirm your property address, requested work and appointment availability directly.

Before contacting an Ohio crawl-space company

Write down what you have noticed, when it happens and what work has already been tried. Useful details include water after rain, condensation, damaged insulation, a musty odor or a change in how a floor feels. These observations help frame an inspection; they do not establish the cause on their own. Share photographs only if you can take them from a safe, accessible location. Do not enter an unsafe crawl space to collect information.

Use the crawl-space inspection checklist to organize your questions. Ask the inspector to identify what was observed, what could not be inspected, and which repairs or further assessments are needed before enclosure work.

A ground liner addresses moisture moving from the soil, but liquid-water entry can require separate water-management work. The Department of Energy’s crawl-space ground-cover guidance distinguishes these moisture pathways and calls for existing standing water and damaged conditions to be addressed before replacing the barrier. Ask how the proposed work responds to the conditions found at your property.

Regional starting points and company-reported areas

The groups below organize the listed companies’ published locations and service-area statements. Follow each profile for its source links and service details. These groups do not establish coverage for an entire region.

Southwest Ohio: Cincinnati and Dayton inquiries

Healthy Basement Concepts publishes a Liberty Township contact address and says it serves Cincinnati, Dayton and Northern Kentucky. Its documented crawl-space offerings include encapsulation, vapor barriers, drainage, sump pumps, dehumidifiers and structural work. Ask which of those items are included in the estimate for your property.

Basement Worx Waterproofing identifies Milford as its base and describes Cincinnati-area and Northern Kentucky service. Its crawl-space page describes encapsulation, vapor barriers, drainage and dehumidification. Insulating joists or HVAC ducts is described as something done in some situations, so clarify whether it is part of your proposed scope.

Jaco Waterproofing lists Fairfield as its Cincinnati-area contact location and also publishes Dayton and Indiana contacts. Its profile describes company-reported crawl-space waterproofing, repair and encapsulation, with the indexed-source limitation stated alongside the sources. The contacts represent one company listing.

AquaProof, Inc. publishes a Cincinnati contact address and describes its shop as being in Sharonville. It offers interior and exterior crawl-space waterproofing and expressly excludes encapsulation. Its moisture-control equipment offering is described separately from dehumidifiers.

Sustainergy Cooperative lists a Cincinnati contact and describes encapsulation with a liner, wall insulation and humidity-control equipment in Greater Cincinnati. Its profile leaves the phone blank because company-page numbers and dial links differ; use the official contact page to confirm the appropriate number.

Central Ohio: Columbus-area inquiries

Ohio Radon Control identifies Marysville as its contact city and reports Columbus and Central Ohio coverage. Its documented crawl-space work includes encapsulation and vapor-barrier installation. The profile distinguishes directly accessible company information from service-page information retrieved through a search index; confirm the current offering and project details directly.

CSI Radon / Complete Search Inspection publishes a Pickerington contact address and reports Central and Southwest Ohio service. Its reviewed crawl-space offering describes encapsulation with a liner on the floor and foundation walls. The company’s multiple contact addresses are treated as one operator. Broader structural, drainage or equipment work is not established by this listing; ask who would handle any additional work the inspection identifies.

Quality Basement Solutions publishes a Columbus contact address and describes encapsulation using floor and wall liners. Its basement, yard-drainage and foundation-wall offerings are distinct from the crawl-space scope; ask which work is included in your proposal.

Mid-State Basement Systems lists a Columbus contact and describes encapsulation, drainage, dehumidification and support-jack work. Its profile discloses shared ownership with related operating brands. Basement Remedy lists Carroll as its contact city and offers crawl-space repair in Columbus. Its profile describes encapsulation and support repairs and explains that the service and contact evidence came from indexed company pages crawled about four months before review.

Northeast Ohio: Greater Cleveland inquiries

Ohio State Waterproofing calls Macedonia its headquarters and reports Northeast Ohio service. Its crawl-space page describes encapsulation, vapor barriers, moisture control, drainage and waterproofing. A staffed walk-in office has not been established.

Cleveland Basement Systems publishes a Brooklyn Heights contact location and Greater Cleveland service-area statements. It describes liners, drainage, dehumidification and support-jack work. Its profile identifies the local operating brand and discloses shared ownership with related brands.

Pro Crawlspace Repair lists a Columbia Station contact and reports Northeast Ohio service. Its company pages describe encapsulation and moisture-management work, plus repairs to damaged beams and joists, mold removal and insulation replacement. Ask which repairs and equipment are included after the inspection.

Northwest Ohio: Greater Toledo inquiries

Reliance Radon Services lists a Waterville contact and describes encapsulation with drainage, sump pumps and dehumidifiers when needed. Toledo Basement Repair lists a Holland contact and describes moisture-control work plus reinforcement or replacement of damaged floor joists. Their profiles explain the documented phone or ZIP discrepancies. Neither contact city establishes countywide coverage or visitor access.

Questions that make proposals easier to compare

The listed companies’ documented scopes differ. A service label does not tell you whether a quote includes drainage, removal of damaged materials, framing repairs, equipment or ongoing service. The encapsulation versus vapor-barrier guide can help you separate a liner installation from a broader system.

1. What problem will the work address? Request inspection findings, photographs or measurements, and an explanation of any unresolved conditions.
2. What will be installed or repaired? Ask for the preparation, materials, coverage, seam and penetration details, drainage, repairs and equipment to be listed separately. Identify optional and excluded work.
3. How will the parts work together? If a closed crawl space is proposed, ask about air sealing, insulation and the moisture-management plan. The Department of Energy’s unvented crawl-space guidance describes a coordinated assembly; a liner alone does not describe all of that work.
4. Who is responsible for each task? Clarify any separate plumbing, HVAC, electrical or structural work, and ask who will confirm applicable local requirements before installation.
5. What records and follow-up will you receive? Request completion photographs, product information, maintenance instructions and written warranty terms, including exclusions and any service charges.

The FTC’s contractor-hiring guidance recommends multiple written estimates that describe the work, materials, completion date and price. Ask about large differences between proposals before choosing by the total alone. Verify relevant qualifications and insurance directly; inclusion here does not establish either.

Use the general scope questions in our crawl-space quote-comparison guide and record the answers on the printable quote-comparison worksheet (PDF). The guide’s state-specific sections cover other states; they are not Ohio requirements. Keep unanswered questions and work outside each quote visible when comparing proposals.

Source note: Provider information was reviewed against the first-party sources linked in each profile on October 11, 2026. Company statements and availability can change. Listings are not endorsements. Use the directory listings below to explore the source-linked profiles, then confirm current details with each company.

Sump-pump planning in Hamilton County

Before accepting a crawl-space sump-pump quote, read our Hamilton County, Ohio permit and discharge planning guide. It separates Cincinnati city permitting from the county route and covers discharge approvals, inspection responsibilities and written quote checks.

Confirm the parcel’s jurisdiction and the requirements for the actual scope with the responsible office. The guide does not establish requirements for every Ohio property.

Cincinnati planning: old insulation before crawl-space work

If a project may disturb suspect pipe insulation, use our Cincinnati old-insulation and asbestos planning guide to find the local agency route, check specialist roles and coordinate the handoff to the crawl-space installer.

Replacing a crawl-space dehumidifier in Columbus?

Use the Columbus, Ohio dehumidifier recall and disposal guide to identify the equipment, check applicable notices and plan removal around city disposal exclusions.

Planning crawl-space work after a Cleveland sewer backup

Cleveland sewer-backup and access guide. Use the guide to record WPC and private-plumbing findings, coordinate inspection and keep cleanouts usable before enclosure.

Planning insulation or enclosure work around water lines? Use the Toledo crawl-space pipe-freeze protection buying guide to compare the plumbing scope, cold-air exposure, shutoff access and winter handover before choosing a proposal.

Dayton crawl-space work and vapor-intrusion coordination

If a Dayton property has an environmental-site notice or an existing vapor-intrusion system, coordinate proposed liner, drainage or equipment changes with the responsible site team. The Dayton vapor-intrusion coordination guide explains which records and handoffs to arrange before ordinary crawl-space repairs.