---
title: "Roof Resealing and Seam Maintenance"
source: https://fleetrepairshops.com/services/roof-seal/roof-reseal
business: OCRV Fleet Repair Shop
location: Yorba Linda, CA
serves: Irvine, California
phone: (714) 909-1844
---

# Roof Resealing and Seam Maintenance

Roof resealing removes failed sealant from seams, penetrations, and edges, prepares the surface, and applies new sealant appropriate to the roof material. It is preventive maintenance that costs far less than the water damage it avoids.

Range: $750 to $4,500 and up

Collision estimates for insurance claim walk-ins carry no charge. Systems estimates are $150 and diagnostics are $285 per hour, both credited against an authorized repair.

## Symptoms

- Cracked, shrunken or lifted sealant at seams
- Staining on the interior ceiling
- Sealant that has become chalky or brittle
- Any roof accessory installed without visible sealing

## Remove the old sealant first

Applying fresh sealant over failed sealant is the most common shortcut and it does not work. The new material bonds to the old, the old is already lifting, and the whole assembly comes away together.

We remove the failed material, clean and prepare the substrate, and apply new sealant matched to the roof material. It takes longer and it is the only version that lasts.

- Full removal of failed sealant
- Surface cleaning and preparation
- Sealant matched to roof material
- All penetrations, vents and accessory mounts treated
- Perimeter and seam edge sealing
- Documented inspection of the whole roof

## Questions

**Can you just add sealant over the old?**

It is a false economy. The new sealant only holds as well as what it is sitting on, and if the old material is lifting the repair fails with it.

**How long does resealing take?**

Four to twenty labor hours depending on roof size and how much old material has to come off.

**Should we reseal preventively?**

Yes. It is one of the clearest examples on a commercial body where scheduled maintenance is dramatically cheaper than the failure it prevents.

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OCRV Fleet Repair Shop, 23281 E La Palma Ave, Yorba Linda, CA 92887. Phone (714) 909-1844. All work is performed at our Yorba Linda facility.