About
Powering Peace of Mind Across the Lowcountry
MHG Maintenance launched on January 1, 2025 with a clear promise: keep every standby generator in South Carolina’s Lowcountry ready for the next outage—large or small. Founder Matthew Harrelson saw too many neighbors discover silent units minutes before hurricane winds hit and vowed to make preventive care the new normal. Today we protect homes from Beaufort to Myrtle Beach and inland to Orangeburg with factory‑authorized know‑how and straight‑talk pricing.
A Generac Service Dealer, South Carolina
MHG Maintenance is a Generac service dealer in South Carolina, re‑authorized each year after our technicians pass Generac certification testing and tool audits. This status matters: Generac’s five‑year limited warranty requires that repairs be performed by an Independent Authorized Servicing Dealer and that owners keep written proof of routine maintenance. Focusing solely on service—not sales—means every training hour sharpens our troubleshooting skills.
Meet Matthew Harrelson
Owner
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- Licensed & Insured Technician — South Carolina electrical‑maintenance credentials plus full liability coverage as a Generac Service Dealer.
- Problem‑Solver in Chief — Completed more than fifty starter replacements in the past year, one of the most common causes of generator downtime along the coast.
- Community Advocate — Shares storm‑readiness tips in local Facebook groups before major weather threats.
Matthew personally oversees every job, ensuring owner‑level care from oil change to alternator repair to full engine swaps.
Our Guiding Principles
Prevention First
A quick oil change today costs far less than an emergency rebuild tomorrow. Public utilities and municipalities invest heavily in scheduled maintenance for the same reason: prevention beats downtime.
Transparent Pricing
Flat $25 travel beyond 20 miles and written estimates keep surprises off your invoice. Warranty labor is handled directly with Generac, not billed to you.
Built for Coastal Life
Salt‑laden air corrodes terminals while rodents seek warmth inside enclosures; we counter both with corrosion inhibitors and stainless mesh cleaning and inspection.
Continuous Learning
From Mobile Link FLEET diagnostics to new engine platforms, our team renews certifications annually and adopts Generac updates as they launch.
Lowcountry Roots, State‑Wide Reliability
South Carolina tracks more than 3 million electric customers, and hundreds can lose power on an average summer afternoon—even without a named storm. Because outages ignore county lines, we cover three coastal zones plus inland communities up to 90 minutes away. When workspace or weather demands shop time, we transport your unit to our North Charleston base and return it fully tested—typically within 72 hours.
Beyond Generators: Hot‑Water Comfort Counts
Tankless—or “instant”—water heaters accumulate mineral scale that slashes efficiency and pressure. Manufacturers like Navien recommend flushing every 12–24 months to preserve both warranty and performance. Pairing this service with your generator maintenance saves a second appointment and keeps two essential systems humming.
Ready to Work Together?
Whether you need annual maintenance, emergency electric generator repair, or a quick instant water heater cleaning, MHG Maintenance is one call away. Reach us at (843) 475‑3182 or service@mhgmaintenance.com—and secure reliable power before the next storm watch.