Roof Replacement in California
Full roof replacement and storm restoration for California homeowners. Free 24-hour inspection with a photo report you keep.
- Full roof replacements for California homes — not patches
- $850–$1,150 per square installed in California — in writing before we start
- MHIC #111971 · A+ BBB Accredited · GAF limited lifetime material warranty
Two fields and one question. A California specialist calls you back to confirm a time.
Roofing services in California
What a roof actually costs in California
In California, architectural shingle runs about $850 to $1,150 per roofing square (100 sq ft) installed, which puts a typical California single-family roof around $20,500–$27,500. We publish this because a contractor who will not talk about money until they are standing in your kitchen is managing you, not quoting you.
These are planning ranges from our published price book, not quotes, and they will vary — sometimes well outside the range. Roof pitch, the number of existing layers to tear off, deck condition found once the shingles are off, chimney/skylight/wall flashing, ventilation brought up to code, gutter and fascia work, and site access all move the number. A roof measured at 24 squares that turns out to have two layers and rotten sheathing is a different job than the one the range describes. The only accurate figure is a written line-item estimate after a free measured inspection. Get an instant online estimate →
From inspection to a roof that's done right
- 1Free 24-hour inspection & photo report. We document every slope, every penetration and every sign of hail or wind damage on your California roof. The report is yours to keep either way.
- 2A written line-item estimate. Materials, tear-off, decking, flashing, ventilation, permit and warranty, each on its own line. Not a single number on the back of a card.
- 3Permit pulled, date scheduled. We pull the California permit and the number goes on your contract. Most single-family roofs install in one day.
- 4Final walk and warranty registered. Magnet sweep of the property, photos of the finished work, GAF limited lifetime material coverage registered in your name, and our workmanship warranty stated in the contract you signed.
What we actually find on California roofs
California, Maryland sits beside Lexington Park and the Patuxent River Naval Air Station, and most of its housing is newer subdivision building driven by the base.
Base-driven housing turns over on a posting cycle, which means a roof's history often left with a previous owner. Establishing what was done and when — and whether any manufacturer warranty survives — is worth five minutes before anyone prices the work.
This is close to open water at the mouth of the Patuxent, and salt-laden air is hard on fasteners, flashing and exposed metal. Corrosion at the penetrations shows up long before the shingle field gives up.
The subdivisions here were built in phases and roofed in phases, so age arrives street by street rather than house by house. If neighbours are replacing, that is data about your own roof.
Who signs off on a roof in California
Roofing permits for California are handled by St. Mary's County Land Use and Growth Management. Their permit line is 301-475-4200. We pull the permit as part of the job — you are not meant to be chasing this — but it is your house, so you should know who is actually deciding.
Worth knowing: Extension 1500. Read from the State of Maryland Building Codes Administration county directory on 2026-09-03.
Permit rules change and depend on the scope of the work — replacing shingles, replacing decking and rebuilding a roof structure are not treated the same. Confirm anything that matters to you with the office above rather than with any contractor's website, including ours.
Towns and ZIPs we cover from here
Our California crews also work Lexington Park, Leonardtown, Great Mills, Hollywood, Mechanicsville — and every ZIP in the area: 20619. Same GAF-certified installation, same limited lifetime material warranty, same free 24-hour inspection whether you are on a main road or a quiet cul-de-sac.
Managing a building rather than living in one? Flat and low-slope work — TPO, EPDM, modified bitumen, coatings and maintenance programs — runs as a separate line with its own scheduling and insurance paperwork. See commercial and flat roofing →
Straight answers
Do you serve California, MD?
Yes — United Developers serves all of California and St. Mary's County, including 20619 and nearby Lexington Park, Leonardtown, Great Mills. We are GAF Certified and licensed in Maryland (MHIC #111971).
What does a new roof cost in California?
In California, architectural shingle runs about $850 to $1,150 per roofing square (100 sq ft) installed, which puts a typical California single-family roof around $20,500–$27,500. That is a planning range from our published price book, not a quote — the real number comes off a measurement and an inspection, because pitch, layers to tear off, deck condition, chimney and skylight flashing, and how much of the roof a crew can reach from the ground all move it.
Who pulls the roofing permit in California?
Roof replacement in California is permitted through St. Mary's County Land Use and Growth Management (301-475-4200). We pull it, we schedule the inspection, and the permit number is on your contract — you should never be asked to pull your own roofing permit.
Is the California roof inspection really free?
Yes. The inspection and the 20+ photo damage report are free and yours to keep whether or not you hire us. No inspection fee, no consultation invoice, and if your roof does not need work we will tell you that.
Will insurance cover my California roof?
If your roof has storm, hail or wind damage, your policy may cover a replacement — on an approved claim your deductible is typically your out-of-pocket cost. We document the damage, provide a line-item estimate, and meet your adjuster on-site. We are a roofing contractor, not a public adjuster, and we do not negotiate your claim for you.
How fast can you get to my California home?
We typically schedule a free inspection within 24 hours across St. Mary's County. Calls are answered and appointments booked 24/7; crews work daylight hours. For an active leak call (240) 880-2108 and we will prioritise you.