Steelhart Garage Door Tampa Bay residential service
FOUNDER · BILL HARTNER
"Carry the parts. Stand behind the springs. That's the whole deal."
The Backstory

Built on the trucks
that stayed stocked.

For two decades before founding Steelhart, Bill Hartner ran service calls for a regional Wayne Dalton dealer covering Tampa, Brandon, and Carrollwood. He saw the pattern over and over again: a customer's spring snaps in the morning, dispatch routes a tech without the right springs in the truck, the tech arrives, diagnoses, leaves to "go pick up the part," and the customer is stuck without a working garage for another day or two.

In 2009 Bill ordered his own truck, stocked it with the 12 most common failure parts (both spring sizes, common cables, rollers, hinges, opener gears, capacitors, logic boards for LiftMaster and Genie), and started taking calls from the customers who'd specifically asked for him over the years. By the end of year one he was running 4-5 calls a day, all repaired on the first visit.

By 2014 he had two trucks. By 2019, four. Today: five trucks, eight technicians, and roughly 1,200 garage door services completed per year across Hillsborough and Pinellas. The business model has not changed: truck stocked, lifetime warranty on springs, one technician per job, price quoted on the phone.

Operating Principles

Four rules.
Every truck, every job.

These aren't a slogan on the wall. They're how we hire technicians, how we stock the trucks, how we price work, and how we evaluate whether we did the job right at the end of the day.

[ 01 ]

Truck Stocked Always.

Twelve parts cover 87% of garage door failures in Tampa Bay. Every truck carries every one of them — both spring sizes, cables, rollers, hinges, capacitors, logic boards. We don't dispatch a tech without the parts. First-visit fix rate: 94%.

[ 02 ]

One Tech, Start to End.

The technician who diagnoses on the phone is the technician who arrives, fixes, tests, and signs the warranty. No handoffs. No "I'll send another guy out." No new face on the second visit. The customer gets the same person every time.

[ 03 ]

Price Quoted on Call.

Spring replacement in Tampa is $285-$425. Opener repair $165-$385. We give you the number on the phone before we dispatch. No diagnostic fee surprise. No upsell on parts you don't need. Quote on call equals price on invoice.

[ 04 ]

Lifetime Spring Warranty.

Most companies offer 1 year. We back our springs for the life of the door. Spring breaks again — even ten years later — we replace it free. The warranty is on every invoice, in writing. No fine print, no service-call fee on the warranty replacement.

The Crew

Eight technicians.
Five trucks.

Every Steelhart technician is W-2, IDA-trained on garage door service, assigned to specific routes by zip code. We don't subcontract installation work. The crew on your job is on our payroll, with our insurance, and our background-checked.

/ FOUNDER · 16 YRS

Bill Hartner

Owner / Master Technician

Founded Steelhart in 2009 after 20 years at a regional Wayne Dalton dealer. Still runs the South Tampa and Davis Islands route personally — the founder turning wrenches keeps the standard honest.

FL #SCC131151218 IDA Master Clopay Cert
/ DISPATCH · 12 YRS

Linda Hartner

Operations / Dispatch

Joined full-time 2013. Runs the phones, dispatch, scheduling, billing, and warranty paperwork. Most customers know Linda's voice better than they know any technician — she remembers what spring went on which house.

CSR Lead Bilingual
/ TECH · 9 YRS

Marcus Clayton

Senior Technician

Brandon, Riverview, and Valrico routes. Specializes in LiftMaster opener repair and complex off-track recoveries. Customer-requested by name on most repeat calls in the East Hillsborough territory.

IDA Certified LiftMaster Cert
/ TECH · 6 YRS

Carlos Mendoza

Install Lead

Carrollwood, Lutz, and Wesley Chapel routes. Runs the new-install team — handles custom carriage-house and full-view aluminum installs. Florida hurricane-rated panel installer. Background in cabinet making.

IDA Certified FL Hurricane Cert
/ TECH · 5 YRS

Jamal Williams

Technician

St. Petersburg and Clearwater routes. Pinellas-side dispatch lead — handles the morning emergency calls across the bridges. Specializes in panel replacement and insurance-claim coordination.

IDA Certified Insurance Liaison
/ TECH · 4 YRS

Tony Rivera

Technician

North Tampa, Wesley Chapel, and Land O Lakes routes. Spring specialist — fastest in the shop on torsion replacement, averaging 38 minutes door to driveway. Came up through Bill's apprenticeship program.

IDA Certified Spring Specialist
Credentials

Licensed, insured,
and publicly verified.

[ 01 ]

Florida Contractor License #SCC131151218

Active and in good standing since 2009. Public record at the Florida DBPR. Annual renewal current. Zero consumer complaints filed in 16 years of operation.

[ 02 ]

Every technician IDA-certified

International Door Association certification before any technician handles a route alone. All eight technicians current on certification. License numbers available on request before any work begins on your property.

[ 03 ]

$2M general liability + workers' comp

Real insurance, not the legal minimum. Certificate of insurance available before service begins. Bonded for new install work over $5,000. We've never filed a claim and we hope to keep it that way.

[ 04 ]

BBB A+ · Google 4.9 (418 reviews)

Public reputation. Never solicited with discounts. Customer concerns are handled directly by Bill or Linda — no offshore call center, no escalation queue, no "manager review" delay tactics.

Tampa Bay residential property serviced by Steelhart Garage Door
FLEET · 5 TRUCKS · TAMPA BAY
"Same truck, same tech, same parts in the back."