RUNASO RV Service

Certified RV Service Hamilton Based, Ontario Wide Service

Rooftop AC Replacement

Professional replacement of RV rooftop air conditioning units to restore reliable cooling performance with properly matched equipment.

Quick Service Overview

Mobile & In-Shop Service

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

Areas RUNASO Mobile RV Service Covers

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)

End-of-Life AC Replacement

Failed or outdated rooftop units are replaced.

Compatibility-Focused Installation

Unit size, power, and controls are matched correctly.

Weather-Sealed Roof Mount

Roof integrity and leak prevention are prioritized.

Common Problems We Fix

Replacement is chosen when repair is no longer practical.

Major component failure

Compressor or sealed system failure.

Repeated or costly repairs

Repair costs exceed practical value.

Obsolete or unsupported units

Parts are unavailable or discontinued.

Planned system updates

Replacing aging equipment for reliability.

RV Heating and Air Conditioning

RV AC Repair

Accurate diagnostics and reliable repair for rooftop and ducted RV air conditioning systems.

RV Heating and Air Conditioning

RV Heating and Air Conditioning Repair Service

Professional diagnosis and repair for RV climate control systems to keep your vehicle safe, efficient, and comfortable in all conditions.

RV Heating and Air Conditioning

Rooftop AC Repair

Diagnose and repair RV rooftop air conditioning systems to restore reliable cooling, proper airflow, and safe electrical operation.

RV Heating and Air Conditioning

Climate control optimization

Professional optimization of RV heating and cooling systems to improve airflow balance, comfort consistency, and energy efficiency.

RV Heating and Air Conditioning

AC electrical diagnostics

Professional electrical diagnostics for RV air conditioning systems to identify power, control, and circuit-related faults accurately.

RV Heating and Air Conditioning

Seasonal HVAC servicing

Professional seasonal servicing of RV heating and air conditioning systems to support reliable operation, efficiency, and early issue detection.

Our Solution

RUNASO provides rooftop AC replacement by confirming roof opening size, electrical requirements, airflow compatibility, and control integration. Old units are removed carefully, roof surfaces are prepared, and new units are installed and sealed according to manufacturer specifications. This service restores AC operation but does not increase RV cooling capacity beyond unit ratings.

Unit Selection & Compatibility

Cooling capacity and electrical requirements are matched.

Roof Preparation & Sealing

Mounting surface is inspected and sealed properly.

Operational Verification

Cooling operation and controls are tested.

What's Included

Existing AC Removal

Safe removal of old rooftop AC unit.

Rooftop AC Installation

Installation and sealing of replacement unit.

Basic Function Check

Cooling and control response are verified.

How The Service Works

Pricing

Rooftop AC replacement pricing depends on unit size, brand, electrical requirements, and roof access. Quotes are provided before installation.

AC unit capacity and model

Electrical compatibility

Roof condition and access

Installation labor

Why Choose RUNASO

RV Rooftop HVAC Experience

We understand roof structure and airflow design.

Leak-Safe Installations

Proper sealing protects against water damage.

Honest Cooling Expectations

Performance follows unit design—not marketing claims.

Frequently Asked Questions

When does an RV rooftop AC need to be replaced instead of repaired?

Replacement is recommended when the AC has compressor failure, repeated electrical issues, refrigerant leaks, or repair costs that approach replacement value.

What are common signs that a rooftop AC is failing?

Common signs include weak or no cooling, frequent shutdowns, excessive noise or vibration, tripped breakers, or the unit not starting at all.

Can I upgrade to a higher-capacity rooftop AC during replacement?

Yes. Replacement is an ideal time to upgrade capacity, provided the RV’s electrical system, roof structure, and ducting support the larger unit.

Are all rooftop AC units compatible with every RV?

No. Compatibility depends on roof opening size, electrical requirements, ducted vs non-ducted design, and overall RV configuration.

Does rooftop AC replacement include roof sealing?

Yes. Proper gasket installation and sealing are critical parts of replacement to prevent water leaks and air loss.

Can improper AC installation cause roof leaks?

Yes. Incorrect mounting pressure or sealing can lead to water intrusion, roof damage, and interior issues.

Does replacing the rooftop AC improve energy efficiency?

In many cases, yes. Newer units often provide improved cooling efficiency, quieter operation, and better temperature control.

Will rooftop AC replacement affect other RV systems?

Electrical load, breakers, thermostats, and ducting are checked to ensure compatibility with the new unit.

How long does rooftop AC replacement usually take?

Most rooftop AC replacements are completed within one service day, depending on access and system configuration.

Is rooftop AC replacement recommended before summer travel?

Yes. Replacing a failing unit before peak heat reduces the risk of cooling failure during trips.

Can poor rooftop AC performance be caused by insulation or airflow issues?

Yes. While replacement helps, overall performance also depends on insulation quality, duct condition, and airflow balance.

When should a rooftop AC be inspected for replacement consideration?

Inspection is recommended when cooling performance drops, repairs become frequent, or before extended warm-weather travel.

Schedule Rooftop AC Replacement Consultation

When a rooftop AC unit is no longer repairable or has reached the end of its service life, replacement may be the most reliable option. Rooftop AC replacement focuses on installing a compatible new unit and ensuring correct sealing and electrical connection—without guaranteeing cooling performance beyond manufacturer design limits or modifying RV insulation or power systems.