Completed shingle roof replacement by GAX Roofing in Rancho Cucamonga, new ridge caps and cut-in valleys
Roof Replacement

Roof Replacement
in Rancho Cucamonga

Full tear-off, deck inspection, new underlayment, and installation, end-to-end by a C39 licensed crew. Free in-home estimate.

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✓ C39 Licensed & Insured
◈ Free In-Home Estimates
⌂ Permits & City Inspections Handled
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What We Do

Full Roof Replacement,
Done Right

Roof replacement is the main thing we do. Not a sideline to repairs, not something we take when the schedule is thin. A full replacement is the biggest home improvement most homeowners ever make, and it is the work we built this company around. We treat every one like it is our own house: a real inspection before we quote, honest recommendations, named materials, and a crew that shows up, works clean, and does not disappear after the check clears.

We handle everything. Permits, city inspections, deck repairs, cleanup, and a final walkthrough with you when the job is done. One call, one crew, one point of contact. We pick up the phone.

Two Ways We Replace a Roof

We do full replacements in both materials, and which one you are looking at depends on what is on your house right now.

Shingle replacement. The whole roof comes off down to the deck. The deck gets inspected and any bad sheathing gets replaced. Then new underlayment, new drip edge at every eave and rake, new flashings, and a full manufacturer system goes on: Owens Corning TruDefinition Duration COOL or Malarkey, both cool-roof rated for Title 24 and both chosen for what our summers actually do to a roof. We are an Owens Corning Preferred Contractor, GAF certified, and Malarkey certified, which is what keeps the manufacturer-backed system warranties on the table instead of just ours.

Full tile replacement. New tile, not your old tile put back. This is the bespoke end of what we do, and we treat the tile choice like a real decision instead of a line item. You are picking the face your house wears for the next several decades, so when a homeowner is close enough, we take them to the Eagle Roofing plant in Rialto to hold the actual profiles and colors in the sun before anything gets ordered from a catalog. We are Eagle Roofing tile installers. We use standard weight tile, never lightweight, because installing lightweight right takes more labor than the lighter tile saves.

There is a third path and we will tell you about it honestly, because sometimes it is the right one: if your tile is still sound and it is the underlayment underneath that failed, a lift and relay, which some companies call a tile reset, reuses the tile you already own over a new membrane. That is a smaller job than a full tile replacement and we say so out loud rather than selling you the bigger one.

What's Included

  • Full tear-off of existing roofing material
  • Deck inspection, damaged plywood or sheathing replaced
  • New underlayment (Owens Corning, ProArmor, or Titanium depending on roof type)
  • New drip edge and flashing
  • Full shingle, tile, or flat membrane installation
  • Ridge cap, vents, and pipe boots properly sealed
  • Permit pulled and city inspection scheduled
  • Full site cleanup and magnet sweep
  • Final walkthrough with homeowner

Every Shingle Job Is a Full Tear-Off

We do not install overlays. Not a layover, not a recover, not even where code would let us put a second layer over the first. Going over an old roof buries the deck, and the deck is the part everything else depends on. You cannot inspect wood you covered up, you cannot flash properly into a surface that is already two layers thick, and the new roof inherits every problem the old one had.

It is a stance, not a door slammed in your face. If somebody has quoted you an overlay, bring us out and let us show you what is up there first. That conversation is usually where it gets decided.

What We Find When the Old Roof Comes Off

Nobody knows what is under a roof until the old one is off. Not us, not the last roofer, and not the company that quoted you over the phone from a satellite picture. More on that in what a satellite cannot see. That is the honest reason a replacement is priced the way it is, and it is why our contract names a per sheet rate for decking in writing before we start, so a surprise on day two is a known number and not a negotiation while your house is open.

Sometimes the deck comes back good. We opened a Pomona roof recently and found solid tongue and groove under it, still sound, and the new system went straight on. Sometimes it does not come back good, and that is a different conversation, one that happens in daylight with photos, not in a phone call after the fact.

How to Read Our Number

You will not find a dollar figure printed next to the flashing on our proposal, and that is deliberate. We price the roof as one system, because that is how it gets installed and that is how it has to perform. Selling you the flashing as a separate line just invites somebody to talk you out of it.

What you do get is the whole parts list in writing before you sign anything: the underlayment by product name, the ice and water shield, the starter course, the shingle or the tile, the ventilation, the ridge, and new metal drip edge and flashings painted to match. If a component is not on that list, it is not in the price. Ask any roofer for the same list and compare them line for line.

The things nobody can honestly price from the ground get a rate instead of a guess. Decking is named per sheet. Fascia and deck boards are named per linear foot. The permit is either included or reimbursed at cost, and the proposal says which. So the only numbers that can move once we are working are ones you already saw and agreed to.

How Long Does It Take?

Most residential roof replacements take 1-3 days depending on size, complexity, and roof type. We'll give you a realistic timeline at the estimate, not a number designed to win the job.

Do I Need a Replacement or a Repair?

If your roof is under 15 years old with isolated damage, a repair may be all you need. On a leak call we will run an infrared thermal survey first, because the ceiling stain is usually nowhere near where the water is actually getting in, and knowing the real source is what tells us whether this is one spot or the whole roof. If it's aging, has widespread granule loss, repeated leaks, or sagging decking, a replacement is almost always the smarter long-term investment. We'll walk the roof with you and give you a straight answer either way. We don't upsell replacements when a repair will do the job.

Tear-Off to Finish

Tear-off down to clean decking on a Rancho Cucamonga roof replacement
Tear-Off
Finished shingle roof replacement by GAX Roofing in Rancho Cucamonga
Finished

Two Rancho Cucamonga shingle replacements: everything stripped to clean decking, and a finished roof on the same kind of house. Different homes, same process.

Frequently Asked Questions

How much does a roof replacement cost in Rancho Cucamonga?

Most residential replacements in the Inland Empire range from $11,000-$20,000+ depending on square footage, roof type, pitch, and deck condition. We provide a detailed written estimate at no charge after walking the roof with you.

Do I need to be home during the replacement?

We prefer homeowners to be available for the start of the job and the final walkthrough, but you don't need to be on-site all day. We'll communicate progress and flag anything that needs your input.

What roofing materials do you use?

On shingle we install Owens Corning TruDefinition Duration COOL and Malarkey systems, and we are certified with Owens Corning, GAF and Malarkey. On tile we use standard weight concrete tile, Eagle Roofing most often, and we are Eagle Roofing tile installers. Flat roofs get TPO, PVC or EPDM depending on the roof. Whatever we recommend gets named in the contract by manufacturer, product line and color, so you are not buying "Title 24 compliant shingles" and hoping.

How long will my new roof last?

Quality asphalt shingles last 25-30 years in the Inland Empire climate. Tile roofs can last 40-50+ years with proper maintenance. Flat roofs typically carry 15-20 year warranties depending on material.

Does GAX Roofing pull permits?

Yes, always. Any licensed contractor is required to pull permits for a full replacement. We handle the permit and schedule city inspections so you don't have to.

Ready for a free
in-home estimate?

(909) 819-8394