Reliable Services
Serving Maryland, D.C., Northern Virginia, Delaware, West Virginia, & Pennsylvania
At STH Inc., we pride ourselves on delivering comprehensive pump solutions tailored to your needs. Our team of factory-certified technicians, dedicated service coordinators, and knowledgeable support staff are committed to ensuring optimal performance and reliability across all your pumping systems.
Products
Explore our line card to see the industry-leading manufacturers we represent.
STH Flipbook Online
Browse our interactive product flipbook for a detailed look at the wide range of equipment and systems we service, from pumps to controls and beyond.
Comprehensive Services
- Repacking and repairs
- Controller and transfer switch diagnostics
- Motor replacement and repair
- Flow management and failed pump analysis
- Main relief valve repair
- Water savings assessments
- Preventative maintenance programs
- Coupling replacement
- Pressure-reducing valve (PRV) rebuilds
- Variable frequency drive (VFD) conversions
- Hydro Tank bladder and full tank replacements
- Control sequencing and troubleshooting
- Mechanical seal, motor, and pump replacements
- Preventative maintenance programs
- Pump and motor repairs or replacements
- Mechanical seal and bearing replacements
- Preventative maintenance programs
- Point-of-entry and point-of-use systems
- Cooling tower full flow, side stream, and sweeper systems
- Legionella prevention strategies
- Preventative maintenance programs
- Pump and controller troubleshooting
- Pump-down testing and analysis
- Preventative maintenance programs
Laser Alignment
Precision alignment services for all pump types
Emergency Services
Stock and rental pumps available for immediate needs
Water Usage Analysis & Energy Audits
Comprehensive assessments for domestic water boosters, stormwater systems, and overall pump energy efficiency
Minimize downtime with our versatile rental pump solutions:
Specifications
Available in 208- or 460-Volt configurations, delivering up to 120 GPM flow and 170 PSI pressure boost.
STH Services Include
- Delivery and setup
- Wiring of VFD controller using existing booster electrical feed
- Programming VFD to match building requirements
- Startup and commissioning
- Deactivation and removal post-use
Client Responsibilities
- Installation and integration into existing systems
- Ensuring proper water quality to prevent mechanical seal failures
- Removal of temporary pump and associated pipings