National Install Service Serving South Carolina Call (843) 665-1915
Call (843) 665-1915

Installation & Service Contractor

We install
the systems a home
runs on.

Heating and air, plumbing, electrical, and complete mobile home hookups across the Pee Dee and Low Country regions of South Carolina.

Work Order Trades Covered
HV-01 Heating & Air
PL-02 Plumbing
EL-03 Electrical
MH-04 Mobile Home Hookup
Status Accepting Work
Business Entity National Install Service LLC
Service Area Pee Dee & Low Country, SC
Work Performed On Site, By Our Own Crews
In Business Since 2018

What We Do

Four trades, one crew

Every job is labor and installation performed at your property. Equipment and materials are sourced for the specific job and installed by our technicians. Nothing is sold separately or shipped.

HV-01

Heating & Air

Full system replacement, new construction rough-in, and repair on residential and light commercial equipment.

  • System replacement
  • Heat pumps
  • Gas & electric furnaces
  • Air handlers
  • Condenser sets
  • Ductless mini-splits
  • Duct install & repair
  • Line sets & drain pans
  • Thermostats & controls
  • Diagnostic service calls

Manufacturer warranties registered in your name

PL-02

Plumbing

Supply and drain work from the meter to the fixture, including water heater replacement and full repipes.

  • Water heater install
  • Tankless systems
  • Whole-home repipe
  • Supply & DWV rough-in
  • Fixture set
  • Water & sewer service lines
  • Well & pressure tank tie-in
  • Gas piping
  • Pressure regulators
  • Leak location & repair

Permitted and inspected where required

EL-03

Electrical

Service equipment, branch circuits, and device work brought to current code with inspection coordination.

  • Panel replacement
  • Service upgrades
  • Meter bases
  • Sub-panels
  • Dedicated circuits
  • Disconnects
  • EV charger circuits
  • Generator transfer switches
  • Fixture & device install
  • Troubleshooting

Work performed to current adopted NEC

MH-04

Mobile Home Hookup

Complete set and connection for manufactured homes, coordinated with dealers, park operators, and inspectors.

  • Pier & pad setup
  • Blocking & leveling
  • Anchors & tie-downs
  • Water connection
  • Sewer connection
  • Gas connection
  • Panel & meter base set
  • Service pole & feeder
  • Crossover duct connection
  • Permit & inspection scheduling

Dealer and park operator accounts welcome

How a Job Runs

Nothing starts without a signed price

The same five steps on every job, whether it is a thermostat swap or a full manufactured home set.

Step 01

Request

Call or send the form below. We collect the address, the trade, and what the property needs.

Step 02

Assess

A technician evaluates the work on site. Diagnostic visits carry a flat service fee, quoted up front.

Step 03

Quote

You receive a written flat-rate quote covering labor, materials, permits, and equipment.

Step 04

Install

We schedule the crew, pull permits, perform the work, and meet the inspector.

Step 05

Invoice

Final invoice by email with a secure payment link. Balance due on completion.

Pricing & Payment

What you are paying for

Every charge on a National Install Service invoice is for labor, materials, permits, and equipment tied to a specific job at a specific address.

How work is priced

  • Estimates Free written estimates on installation and replacement work.
  • Service calls Diagnostic visits carry a flat fee, quoted to you before we dispatch a technician. It is applied toward the repair if you proceed.
  • Installations Quoted as a flat price in writing. The price does not change unless you approve a change order.
  • Deposits A deposit is collected at scheduling when equipment must be ordered. The balance is due at completion.
  • Change orders Additional work found once a job is open is quoted separately and only proceeds with your written approval.
  • Billing All pricing and billing in US dollars. Invoices are sent by email on completion.

Cancellations, deposits, and workmanship warranty are covered in our cancellation and refund policy.

Coverage

Where we work

Crews dispatch from Florence and cover the Pee Dee and Low Country regions of South Carolina. Jobs outside the standard radius are quoted with a trip charge disclosed in the estimate.

Florence County Darlington County Marion County Dillon County Marlboro County Sumter County Williamsburg County Georgetown County Horry County Berkeley County Charleston County Dorchester County

Contact

Request service

Call for anything urgent. For everything else, send the details and we will respond during business hours.

Reach us

Phone
(843) 665‑1915
Email
installs@nationalinstallservice.com
Office
1607 E Palmetto St
Florence, SC 29506
Business Hours
Monday to Friday, 8:00am to 5:00pm
Saturday by appointment. Closed Sunday.
Legal Entity
National Install Service LLC
Service Region
Pee Dee and Low Country, South Carolina

Send job details

Prefer to talk? Call (843) 665‑1915.