---
title: Preventative Maintenance | STH Inc.
description: Routine Annual or Bi-annual Maintenance of Your Pumping System Will Help to Minimize Any “unbudgeted” Emergencies and Reduce Costly Downtime.
---

# Preventative Maintenance Program

#### Since 1973, STH has been the trusted partner for Booster, Fire, Sump, and Sewage pump solutions throughout Maryland, Washington D.C., and Northern Virginia. Today, we proudly manage over **1,800 Preventative Maintenance (PM) Agreements**, supporting property managers and building owners with reliable, factory-certified service.

- ![Gunnar](https://sthinc.com/hs-fs/hubfs/Sthinc_April2024/Images/Gunnar23.jpg?width=1440&height=1920&name=Gunnar23.jpg)
- ![Tech doing PM](https://sthinc.com/hs-fs/hubfs/Sthinc_April2024/Images/Tech%20doing%20PM.jpg?width=1440&height=1920&name=Tech%20doing%20PM.jpg)
- ![Preventative Maintenance](https://sthinc.com/hs-fs/hubfs/Sthinc_April2024/Images/Preventative-maintenance.jpg?width=400&height=300&name=Preventative-maintenance.jpg)

 

### Why Preventative Maintenance Matters

Routine maintenance—performed annually, bi-annually, quarterly, or monthly—can dramatically reduce costly downtime and unplanned emergency repairs. With STH’s **Premier Customer Service PM Program**, you benefit from:

- ✅ Reduced labor rates for PM visits
- ✅ Priority scheduling and after-hours emergency access
- ✅ 48-hour turnaround on repair quotes
- ✅ Automatic service scheduling and renewals
- ✅ Multi-visit and multi-system discounts
- ✅ Support for all pump makes, models, and controllers
- ✅ Early problem detection to avoid major system failures
- ✅ Extended equipment life through regular expert care

And yes—we do HVAC, too. Preventative maintenance goes beyond the pump.

All maintenance is performed by factory-trained and certified technicians, ensuring your systems operate at peak performance year-round.

#### PM Service Coverage by System Type

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**Booster Pumps**

- [VFD Booster Pumps](https://sthinc.com/hubfs/Sthinc_April2024/pdf/2022-2023-BP-VFD-PM-Quote-webfile.pdf?hsLang=en)
- [Simplex, Duplex, Triplex, and Quadruplex PRV Systems](https://sthinc.com/hubfs/Sthinc_April2024/pdf/2022-2023-BP-Simplex-PRV-PM-Quote-webfile.pdf?hsLang=en)

**Fire Pump**

- [Diesel Fire Pump Full Service](https://sthinc.com/hubfs/Sthinc_April2024/pdf/2022-2023-FP-Diesel-Full-Service-PM-Quote-webfile.pdf?hsLang=en)
- [Standard Fire Pump Service](https://sthinc.com/hubfs/Sthinc_April2024/pdf/2022-2023-FP-Standard-PM-Quote-webfile.pdf?hsLang=en)

**Sump & Sewage Systems**

- [Commercial & Industrial Sump / Grinder Pumps](https://sthinc.com/hubfs/Sthinc_April2024/pdf/2022-2023-SESP-Basic-PM-Quote-webfile.pdf?hsLang=en)
- [**Rainwater Harvesting Systems**](https://sthinc.com/hubfs/Sthinc_April2024/pdf/2022-2023-Rainwater-Harvest-Quote-webfile.pdf?hsLang=en)

**HVAC Pumps & Building PRVs**

- [**Complete inspection and maintenance for PRV and HVAC pump systems **](https://sthinc.com/hubfs/Sthinc_April2024/pdf/2022-2023-Rainwater-Harvest-Quote-webfile.pdf?hsLang=en)

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#### Ready to Get Started?

Become a part of our **Premier Preventative Maintenance Program** and take the guesswork out of pump maintenance. Let STH help extend the life of your equipment, improve system efficiency, and reduce costly disruptions.

**Call us today** at (800) 233-7718 Or email sthservice@sthinc.com

[ Request a Quote ](https://sthinc.com/contact?hsLang=en)