RUNASO RV Service

Certified RV Service Hamilton Based, Ontario Wide Service

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Exterior Sealant Replacement

Professional removal and replacement of RV exterior sealants to restore weather protection and reduce the risk of water intrusion.

Schedule an Exterior Sealant Inspection
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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)

Water Intrusion Prevention

Failed sealant is replaced at key exterior points.

Compatible Materials

Sealants matched to RV surfaces and exposure.

Preventive Protection

Fresh sealant helps reduce future damage risk.

Common Problems We Fix

Sealant failure commonly occurs at joints and penetrations.

Roof seams and transitions

Aging sealant cracks from UV exposure.

Windows and doors

Seal shrinkage leads to leaks and drafts.

Vents, skylights, and fixtures

Movement and vibration break seals.

Exterior trim and molding

Water intrusion behind trim edges.

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

RV Fabrication and Structural Modifications

Bracket and mount fabrication

Custom fabrication of brackets and mounts for RV systems and accessories when off-the-shelf solutions don’t fit, align, or support proper installation.

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

RV Fabrication and Structural Modifications

Frame-mounted accessory fabrication

Custom fabrication of frame-mounted accessories designed to attach safely to your RV’s chassis while maintaining structural integrity and proper load distribution.

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

RV Fabrication and Structural Modifications

Equipment mounting plates

Custom equipment mounting plates designed to provide stable, properly aligned attachment surfaces for RV systems and accessories.

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

RV Fabrication and Structural Modifications

Custom storage fabrication

Design and fabricate custom RV storage solutions to maximize usable space, improve organization, and secure items properly during travel.

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

RV Glass and Mirror

Windshield replacement

Professional replacement of RV windshields to restore safe visibility, structural support, and proper weather sealing.

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

RV Glass and Mirror

Side window glass replacement

Professional replacement of damaged or broken RV side window glass to restore safety, visibility, and weather protection using RV-appropriate materials.

Our Solution

RUNASO provides exterior sealant replacement by identifying deteriorated sealant, removing it carefully, preparing surfaces, and applying new sealant compatible with the RV’s materials. This service restores localized sealing performance but does not repair structural damage or address leaks from unseen internal sources unless quoted separately.

Old Sealant Removal

Failed or cracked sealant is removed cleanly.

Surface Preparation

Surfaces are cleaned for proper adhesion.

Correct Application

Sealant is applied to manufacturer standards.

What's Included

Sealant Condition Assessment

Identification of failed or aging sealant areas.

Sealant Replacement

Removal and application at approved locations.

Visual & Coverage Check

Continuity and coverage are verified.

How The Service Works

Exterior Inspection

We locate sealant failure points.

Removal & Resealing

Old sealant removed; new applied.

Final Review

Areas serviced and maintenance guidance explained.

Pricing

Exterior sealant replacement pricing depends on the number of areas, accessibility, and sealant type. Quotes are provided before work begins.

Number of seams or penetrations

Roof height and access

Sealant type required

Labor time

Why Choose RUNASO

RV Water Intrusion Experience

We know where RVs typically fail first.

Material Compatibility

Sealants matched to RV surfaces.

Preventive Mindset

Small fixes to avoid big repairs.

Testimonials

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Frequently Asked Questions​

Exterior sealant replacement involves removing aged or failed sealant and applying new, RV-specific sealants to restore watertight protection around exterior joints and openings.
Sealant protects against water intrusion, air leaks, and long-term structural damage caused by moisture entering the RV.
Common areas include roof seams, windows, doors, vents, skylights, exterior trim, ladder mounts, and accessory mounting points.
Signs include cracking, peeling, gaps, discoloration, brittleness, or visible separation from the RV surface.
Yes. Water intrusion from failed sealant can lead to mold, soft walls or floors, insulation damage, and structural issues over time.
Yes. Regular sealant inspection and replacement is one of the most important preventive maintenance tasks for RV owners.
Sealant should be inspected at least annually and replaced as needed, especially after extreme weather or long storage periods.
Yes. Proper replacement requires removing failed sealant first to ensure new material bonds correctly and lasts longer.
Absolutely. Properly applied sealant restores watertight protection around openings and reduces drafts.
Yes. Well-maintained seals signal good upkeep and reduce buyer concerns about water damage.
Most resealing work is completed within a service visit, depending on the number of areas being addressed.
It’s best scheduled when sealant shows wear, before rainy seasons, before long trips, or as part of resale preparation.

Schedule an Exterior Sealant Inspection

Exterior sealants protect critical seams and penetrations from water and weather. Exterior sealant replacement focuses on removing failed sealant and applying new, compatible products at identified locations—without guaranteeing elimination of all leaks caused by hidden damage or structural movement.
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