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Full Roof Replacement, Start to Finish
Replacing a roof is the largest single job most Oahu owners will pay for. First Class Roofing handles the whole job: tear-off and disposal, decking checked and repaired, new underlayment and the new roof system, with any permit the job needs pulled as part of the work. If your roof still has life in it, we will tell you that instead.
Replacing Roofs Across Oahu
We work across the island: Honolulu, Waipahu, Wahiawa, Kailua, Kaneohe, Aiea, Mililani, Kapolei, Hawaii Kai and the communities between them. Roofs do not wear evenly here. A windward roof takes far more rain than one in Honolulu, and a coastal property loses fasteners and flashing to salt air long before the surface gives out. Where your house sits changes which material makes sense.
What Drives Roof Replacement Cost in Honolulu
Roof replacement costs more in Hawaii than on the mainland: materials ship in, salt and UV demand better specification, and permitting adds time. Five things set the number.
| What drives it | Why it moves the price |
|---|---|
| Material | Asphalt shingle costs least per square foot; tile and metal cost more and last longer. |
| Size and pitch | Priced by roofing square, not floor area; steep or complex roofs need more labour. |
| What is under the old roof | Decking damage only shows after tear-off. Rot adds material and labour. |
| Access and complexity | Two storeys, tight lot lines, skylights and valleys add time. |
| Permits and disposal | Structural work, and roofs on buildings other than homes, need a Honolulu permit. Disposal scales with the old roof’s weight. |
Our guide to new roof and roof replacement costs goes further.
What Every Replacement Includes
- Full tear-off and disposal, not an overlay
- Decking inspected and repaired before the new roof goes on
- GAF and Malarkey materials and systems
- We work directly with insurers on storm-damage claims
- Any permit the job needs, handled as part of it
- Residential and commercial, every common roof type on Oahu
- Site protected and cleaned daily, with a magnetic nail sweep before we leave
- A written workmanship warranty, and the manufacturer’s warranty on materials
Commercial Roof Replacement
Commercial roofs fail differently, and the expensive part is usually not the roof: it is the interruption underneath it. We replace flat and low-slope systems across Oahu, in TPO, PVC, EPDM, modified bitumen, torch-down and metal. Which one suits the building depends on drainage, foot traffic and the plant on the roof. We can phase the work so part of the building stays usable, and we will say first whether a coating or targeted repair buys you more years.
For Homeowners
For most families the roof is the largest item on the house, and the two questions we get are whether it can wait another year and how to pay for it. On the first, you get a straight answer after the inspection, including when it can wait. On the second, financing is available through Acorn Financing, and we work directly with insurers when storm damage is part of the picture. We replace asphalt shingle, tile, metal and flat residential roofs.
Licensed, Bonded and Insured
First Class Roofing is licensed, bonded and insured in Hawaii, with current general liability and workers’ compensation cover, so work on your property is not your liability. Ask any contractor for proof of both before they start: an uninsured crew on your roof is your exposure, not theirs.
What to Expect During Your Roof Replacement
The same five steps run on every job.
Inspection
We’ll schedule a free inspection to assess your roof and discuss your needs.
Proposal Sent
We’ll send a comprehensive proposal outlining scope, pricing, and timeline.
Proposal Signed
We’ll schedule the project, order materials, and gather permits.
Work Begins
Our crew arrives on schedule to complete your roofing project efficiently.
Final Touches
We walk you through the finished work and leave your property spotless.
Why Choose First Class Roofing
85+ Google reviews, rated 5.0
Read them on our Google profile before you call
Licensed, bonded and insured in Hawaii
With general liability and workers’ compensation cover
BBB accredited, rated A+
Also a GAF-certified roofing contractor
A dedicated project manager
One point of contact from the inspection to the final walkthrough
Accurate timelines
We tell you how long it will take, and if weather moves it.
We will tell you if your roof does not need replacing yet
If a repair buys you more years, you hear that first
Roof Replacement Questions
How much does it cost to replace a roof in Honolulu?
There is no single figure: material, size and pitch, decking condition, access and permits all move it. The only accurate answer for your house comes from a free estimate.
Do you need a permit to replace a roof in Hawaii?
On Oahu, it depends on the building and the work. Honolulu does not require a permit to re-roof a house or a garage when the work does not affect the roof’s structure. Structural repairs, and roofs on other kinds of buildings, do need one. We check which applies, and pull the permit when the job needs one.
Should a 20-year-old roof be replaced?
Not automatically. Asphalt shingle roofs in Hawaii reach the end of their service life sooner than they do on the mainland, because of UV and salt. Tile and metal run longer. Age is a reason for a roof inspection, not a replacement.
What is the 25% rule for roofing?
It is an industry guideline, not a building code: if more than about a quarter of a roof is damaged, replacing it usually makes more sense than a roof repair.
How long does a replacement take?
Most homes take 1 to 3 working days once work starts; larger buildings about a week, weather permitting.
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