RUNASO RV Service

Certified RV Service Hamilton Based, Ontario Wide Service

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Sag and sway control system installation

Professional installation of sag and sway control systems for RVs to improve load stability, handling, and towing confidence under real-world driving conditions.

Schedule a Sag & Sway Control Installation
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Quick Service​ Overview

Mobile & In-Shop Service

Final Availability may depend on RV size, condition, and access.

  • Hamilton Region (Ancaster, Dundas, Flamborough, Glanbrook, Stoney Creek, Waterdown, Downtown Hamilton, East Hamilton, Mountain)
  • Niagara Region (St. Catharines, Niagara Falls, Welland, Fort Erie, Thorold, Grimsby, Lincoln, Niagara-on-the-Lake, Pelham, Wainfleet, West Lincoln)
  • Halton Region (Burlington, Oakville, Milton, Halton Hills)
  • Peel Region (Brampton, Mississauga, Caledon)
  • Wellington County (Guelph, Fergus, Elora, Centre Wellington, Puslinch)
  • Haldimand County (Caledonia, Cayuga)
  • Brant County (Brantford, Paris)
  • Toronto (Downtown Toronto, North York, Scarborough, Etobicoke, York, East York)

Improved Load Stability

Systems help manage rear sag under load.

Reduced Sway & Body Roll

Control components help limit excessive movement.

RV-Specific Fitment

Installation considers axle, suspension, and load configuration.

Common Problems We Fix

Sag and sway issues often become noticeable after loading, towing, or upgrades.

Rear-end sag under load

Added weight compresses suspension beyond ideal range.

Side-to-side sway while driving

Crosswinds and turns amplify instability.

Reduced steering and braking confidence

Poor weight distribution affects vehicle control.

Uneven suspension wear

Persistent sag accelerates component fatigue.

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RV service technician in red RUNASO uniform walking toward a modern RV in a neutral outdoor setting

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Tongue weight assessment

Professional measurement and evaluation of trailer tongue weight to support balanced towing, proper hitch setup, and safer load distribution.

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Safety chain replacement

Professional replacement of RV and trailer safety chains to restore proper towing safety and regulatory compliance.

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Hitch height adjustment

Professional hitch height adjustment for RV and trailer setups to help improve towing balance, trailer leveling, and overall handling under real-world load conditions.

Our Solution

RUNASO provides sag and sway control system installation focused on correct system selection and proper installation. We assess vehicle weight, suspension condition, and usage to recommend solutions that improve handling—without claiming elimination of sway or altering manufacturer limits.

Load & Suspension Assessment

We review current ride height, load, and suspension condition.

System Selection

Appropriate components are selected based on RV configuration.

Controlled Installation & Testing

Systems are installed and checked for proper operation.

What's Included

Vehicle & Load Review

Assessment of sag, sway symptoms, and setup.

Sag / Sway Control Installation

Installation of approved control components.

Post-Install Review

Ride height and basic handling checks.

How The Service Works

Handling Concern Review

We discuss driving symptoms and usage.

Installation Planning

System type and mounting points are confirmed.

Installation & Verification

Components are installed and inspected.

Pricing

Sag and sway control system installation pricing depends on system type, vehicle configuration, and installation complexity. Quotes are provided after assessment.

System type (air assist, sway bar, helper springs, etc.)

Axle and suspension configuration

Installation time

Adjustment requirements

Why Choose RUNASO

RV Suspension Awareness

RV handling differs from passenger vehicles.

No Overpromising

We improve stability—not promise perfection.

Balanced, Practical Setup

Solutions are matched to real-world use.

Testimonials

Google Profile

Frequently Asked Questions​

A sag and sway control system helps level the towing setup and reduce side-to-side movement by improving load distribution and stability while driving.
Common causes include improper load distribution, incorrect hitch setup, insufficient suspension support, or towing a trailer that isn’t level.
These systems improve steering control, braking balance, and overall stability, especially at highway speeds or in crosswinds.
No. Sag control focuses on leveling and load support, while sway control limits side-to-side trailer movement. Many systems address both together.
Yes. Improved stability reduces constant steering corrections, making long towing trips more comfortable and less tiring.
Yes—in a positive way. Proper load management reduces stress on suspension components, tires, and hitch hardware.
Not always, but it’s highly recommended for heavier trailers, long travel distances, or setups that show signs of instability.
Yes. These systems significantly improve stability during crosswinds, road turbulence, and when large vehicles pass.
Selection depends on trailer weight, hitch type, suspension setup, and towing vehicle specifications.
Yes. Proper installation includes verifying hitch height, load balance, and overall towing geometry.
Most installations are completed within a short service visit, depending on system type and vehicle configuration.
It’s recommended when towing a new trailer, experiencing sway or rear sag, or after suspension or hitch changes.

Schedule a Sag & Sway Control Installation

Excessive rear sag and vehicle sway can negatively affect RV handling, braking, and driver confidence. Properly selected and installed control systems help improve stability and balance.
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