Combination Sump System in Columbus, Ohio

Transit & Flow Group installs combination sump systems for Columbus-area homeowners who want a primary pump and a battery backup pump selected, sized, and installed together as one coordinated system, rather than adding a backup to a pump that is already in place. It is a single job with a single scope: one pit, two pumps, one shared discharge path, built to work as a unit from day one. Describe your basement and goals in the Estimate Builder for a preliminary online estimate.

Is this the right service for you?

A combination system fits a homeowner planning for both failure modes, pump failure and power failure, at the same time. Common situations:

• Your primary pump needs replacing anyway, and you have decided this is the right moment to add backup protection rather than doing it as a separate project later.
• You are installing a sump system for the first time and want it built with redundancy from the start instead of retrofitting a backup afterward.
• You want both pumps sized and matched to each other by one contractor in one visit, rather than a backup added on top of whatever primary pump happens to already be there.
• You have a finished basement, a history of flooding, or you travel often, and you have decided the protection is worth building in fully rather than as an add-on.

If your primary pump is working fine and you just want to add battery backup protection to it, that is a narrower, typically less expensive job: see our Battery Backup Sump Pump service, which adds a backup to an existing, functioning primary pump without touching or replacing it. Choose this combination service instead when the primary pump itself is also part of the job, whether because it needs replacing, or because the whole system is being installed for the first time.

How pricing works

A combination sump system is scope-based pricing, built around installing both pumps as one coordinated project. The logic:

• The primary pump and the battery backup pump are each sized to your measured water load and pit conditions, then priced together as a matched pair rather than added piecemeal.
• Pit and discharge work is priced based on whether an existing pit and discharge line are being reused or a new pit is being installed as part of the same job.
• Battery and charging system costs scale with battery size and expected run time during an outage.
• What changes the price: whether this is a first-time installation (which adds excavation) or a coordinated replacement of an existing primary pump plus a new backup, pit condition, and discharge routing.
• Water-powered backup as an alternative: if you would rather avoid a battery entirely, a water-powered backup pump can sometimes be built into a coordinated system instead, running on household water pressure rather than a charged battery, though it requires municipal water and will not work on a well. The combination system detailed on this page is specifically the battery-backup version; ask if you want to discuss the water-powered alternative.

As general market context, not a Transit & Flow quote, HomeGuide’s 2026 data puts combined primary-and-backup sump systems, an all-in-one installation of both a primary pump and a battery-powered backup, at roughly $800 to $3,000 including installation, with a water-powered alternative typically running $300 to $1,000 for comparison. Enter your basement layout, current pump status, and goals in the Estimate Builder for a preliminary online estimate. Final scope and price subject to verification on site. Permits and inspections may be required for pit work, and we confirm before we start.

What’s included

• A primary pump sized to your measured water load and discharge distance
• A battery backup pump and charging system, sized to run independently during a power outage
• Shared or coordinated discharge routing for both pumps
• New pit installation or reuse and inspection of an existing pit, depending on your project
• Full-cycle testing of both pumps, including a simulated outage test of the backup alone
• Photos of the finished installation and a dated record for your files
• All workmanship is backed by a 1-year labor warranty on labor, parts, and equipment covered per manufacturer terms.

What’s not included

• Adding only a battery backup to a primary pump you are keeping as-is; see Battery Backup Sump Pump for that narrower job
• Broader foundation waterproofing or exterior drainage tile installation
• Electrical outlet or circuit work beyond the backup’s charging system, which requires a OCILB-licensed electrical partner for panel-level work
• Ongoing battery replacement after the initial installation
• Water damage restoration for any past flooding

Central Ohio context

Central Ohio homeowners planning a combination system are usually thinking about the same pattern local weather creates: heavy rain events that saturate clay soil for days, arriving on storm systems that are also the most likely to knock out power. That overlap is why building both pumps in together, rather than treating them as separate future projects, makes sense for a lot of Central Ohio basements. A primary pump alone handles the water; a backup alone handles the outage; neither one covers both risks by itself.

Freeze-thaw winters add a planning consideration too. Ice storms are a realistic cause of power loss here, and they tend to arrive during the same late-winter stretch when saturated, thawing clay soil is already sending extra water toward the pit. Homeowners doing a first-time installation or a primary pump replacement during that season often decide the incremental cost of adding the backup at the same time is worth it, rather than treating it as a future project.

Our process

1. Describe your project online. Whether this is a first installation or a coordinated primary-plus-backup replacement, along with basement finish level and goals, goes into the Estimate Builder for a preliminary online estimate.
2. Book an on-site assessment. We confirm pit condition, sizing for both pumps, and discharge routing.
3. Written scope. A line-item plan covering the primary pump, the battery backup, pit work, and discharge, priced as one coordinated job. Final scope and price subject to verification here.
4. Installation. Both pumps installed, wired, and connected to a shared or coordinated discharge path in a single scheduled visit for most homes.
5. Full-cycle and simulated outage test. We run the primary pump through full cycles, then power it off and test the backup alone before calling the job done.

Services completed by appropriately qualified professionals where required.