How much does a sump pump battery backup cost?
How much does a sump pump battery backup cost?
$600 – $2,000+ average cost installed
Sump pump battery backup cost
A sump pump battery backup costs $600 to $2,000+ with installation to ensure operation during power outages or pump failure. Alternatives include a water-powered backup system costing $300 to $1,000 that requires no electricity, or an upgraded combo system costing $1,000 to $3,000, which combines primary and backup sump pumps for enhanced reliability.
| System type | Average installed cost |
|---|---|
| Battery-powered backup | $600 – $2,000+ |
| Water-powered backup | $300 – $1,000 |
| Combo backup sump pump | $1,000 – $3,000 |
Battery-powered backup
A battery-powered backup sump pump system costs $600 to $2,000+ with installation. It adds a secondary pump that activates during power outages or if the main pump fails, providing reliable flood protection. This option is ideal for homeowners needing dependable backup in areas prone to outages and heavy rain.
Water-powered backup
A water-powered backup sump pump costs $300 to $1,000 with installation. It uses your home's water pressure to create suction, offering unlimited, electricity-free operation during power outages. This type of system requires a steady municipal water supply and will not work in homes with well water.
Combo backup sump pump
Combo backup sump pump systems cost $800 to $3,000 including installation. This all-in-one solution combines a primary electric sump pump with a battery-powered backup in a single, integrated unit.
While a standard sump pump costs less, investing in an all-in-one combo system can simplify maintenance and provide seamless protection against both pump failure and power outages. Combo systems are a convenient choice for homeowners replacing an old sump pump or seeking a comprehensive, streamlined backup solution.
Battery backup for sump pump cost
A sump pump battery backup system features a backup pump, charger, and other essential parts, but it's the battery that supplies the power during an outage. Choosing a battery with the right combination of affordability and longevity is crucial for continuous protection.
| Battery type | Average cost | Typical lifespan |
|---|---|---|
| Flooded (wet cell) deep-cycle | $100 – $200 | 3 – 5 years |
| AGM (Absorbed Glass Mat) | $200 – $400 | 4 – 7 years |
| Gel cell | $200 – $400 | 4 – 7 years |
Flooded (wet cell) deep-cycle: These batteries are the most affordable option and designed for repeated deep discharges. However, they require regular maintenance such as checking water levels and need proper ventilation due to off-gassing. Their typical lifespan is 3 to 5 years.
AGM (Absorbed Glass Mat): AGM batteries are sealed, maintenance-free, and offer better performance and longer life than flooded batteries. They charge faster and are spill-proof and resistant to vibration, making them a popular choice for sump pump backups.
Gel cell: Gel cell batteries are sealed and maintenance-free, using a gelled electrolyte that reduces evaporation. While they have a similar lifespan to AGM batteries, they tend to charge more slowly and are less commonly used in sump pumps.
Always check your sump pump manufacturer's recommendations for compatible battery types.
Cost to install battery backup sump pump
Sump pump battery backup systems cost $600 to $2,000+ with installation, providing a critical safeguard against basement flooding during power outages or primary pump failures. Total costs vary based on the component quality, local labor rates, and project complexity. The labor cost makes up around $150 to $600+ of the total.
| Component | Average cost |
|---|---|
| Battery backup system | $250 – $600 |
| Battery (often sold separately) | $100 – $400 |
| Miscellaneous parts (e.g. fittings, discharge pipe, check valve, adapters) |
$50 – $200 |
| Plumber labor (2 – 4+ hours) | $150 – $600+ |
| Permits and inspections | $50 – $200 |
| Total installed cost | $600 – $2,000+ |
Back up sump pump cost factors
Several factors influence the total cost of a battery backup sump pump system:
Sump pump capacity
The capacity of your backup system determines how much water it can move during an outage. Higher-capacity pumps cost more but are essential for homes with larger basements or higher flood risk. Choose a capacity that matches your primary sump pump's output for optimal protection.
Battery capacity
Larger-capacity sump pump batteries provide longer backup times during outages but are more expensive. Choosing a higher-capacity battery can increase upfront costs but offers better protection during extended power failures.
Material quality
Backup sump pump system components are made from various materials, including plastic, stainless steel, and cast iron. While plastic units are more affordable, metal options offer greater durability and longevity, which can justify a higher upfront cost in areas with frequent use or harsh conditions.
Other factors
Several additional elements can influence the overall cost, including:
Battery cost: Some systems require you to purchase the battery separately, adding to the total.
Additional parts: Fittings, discharge pipes, check valves, battery boxes, and adapters may not be included and can add to the cost.
Labor rates: Professional plumber labor costs $75 to $150 per hour, depending on local rates and the job complexity.
Installation complexity: More complicated setups or sump pumps in hard-to-access locations can increase labor time and cost.
Plumbing and electrical modifications: If your home's plumbing or electrical systems need upgrades to accommodate the backup system, this can add $100 to $500+ to your expenses.
Maintenance and replacement: Regular maintenance and repairs are essential for reliable operation, with sump pump maintenance costs averaging $100 to $250 annually.
FAQs about sump pump battery backup systems
How do you install a battery backup sump pump?
While plug-in battery backup systems are available for DIY installation, a professionally installed battery backup sump pump is the best option for safety and reliability. A pro will ensure the backup system is correctly integrated with your existing sump pump, securely wired, and properly configured to operate automatically during power outages or pump failures.
How long does a sump pump backup battery last?
The runtime of a sump pump backup battery depends on its capacity and how frequently the pump cycles, but a typical 40-amp/hour battery can last up to 53 hours if the pump runs once every five minutes. The battery lifespan ranges from 3 to 7 years on average.
How does a sump pump battery backup work?
A battery backup system monitors power to the primary pump and automatically activates when it detects a power outage or pump failure, using its own float switch and battery to keep water out of your basement until power is restored or the main pump resumes operation.
Who installs sump pump battery backup?
Licensed plumbers and specialized contractors install sump pump battery backup systems, ensuring proper setup, code compliance, and safe operation.
Are battery backup sump pumps worth it?
Battery backup sump pumps are considered worthwhile in areas prone to power outages or heavy storms, as they provide crucial protection against basement flooding and costly water damage when the main pump loses power or fails.
Can I add battery backup to existing sump pump?
Yes, you can add a battery backup to an existing sump pump using dedicated backup kits or plug-in systems like Pump Sentry, which are designed for straightforward integration with your current setup. However, professional installation is recommended for optimal safety and performance.
Getting estimates for sump pump services
When seeking estimates for a sump pump battery backup system, it's important to gather detailed information from sump pump repair companies:
Get multiple estimates from licensed and experienced professionals to compare services and pricing.
Read reviews of sump pump contractors on HomeGuide and Google.
Request a breakdown of parts, labor, and any additional fees such as permits or disposal of old equipment.
Ask about the warranty coverage for both the battery backup system and installation work.
Check if the installer will test the system after installation and provide maintenance advice.
Confirm the timeline for installation and any preparation you need to do before the technician arrives.
Questions to ask a sump pump repair company
When contacting a sump pump repair company, ask these questions to ensure you get proper service and understand your battery backup system:
Can you install a battery backup system for my existing sump pump, or do I need a new pump?
What type and size of battery backup system do you recommend for my sump pump and home needs?
How long can the battery backup system run during a power outage?
What maintenance is required for the battery backup system?
Will the backup pump or system integrate with my existing discharge pipe?
Do you provide a battery enclosure or box to protect the battery?
Can you demonstrate how to test the battery backup system after installation?
Do you offer warranties on the battery backup system and installation?
What are the costs involved for installation, equipment, and any additional materials?
Do you recommend a combination of a primary electric pump plus a battery backup pump?
Are there options for monitoring or alerts if the battery backup system fails or the battery is low?
Using our proprietary cost database, in-depth research, and collaboration with industry experts, we deliver accurate, up-to-date pricing and insights you can trust, every time.