Roof Replacement in Santa Rosa & Sonoma County
A roof replacement is the one repair you only want to buy once. Rea Roofing Inc. replaces roofs across Santa Rosa and the wider North Bay — tearing the old system off to bare deck, correcting what we find underneath, and rebuilding the assembly so the underlayment, flashing and finish material work together instead of against each other.

Tear-off day on a residential re-roof — decking exposed and inspected, shingle bundles loaded to the ridge.
What a full replacement actually includes
Most North Bay roofs come off for one of four reasons: the composition shingle has reached the end of its service life, a leak has been chased for two winters and never fixed, an insurance or fire-rebuild scope calls for a new Class A assembly, or a remodel has changed the roofline. We quote all four honestly — including telling you when a repair is still the better spend.
Tear-off is where the real information is. Once the old covering is off, we walk the deck and look for delamination, dry rot at the eaves and valleys, undersized or missing sheathing clips, and the soft spots that always sit under a long-running leak. Anything that will not hold a fastener gets replaced before new material goes down, and we show you what we found rather than quietly covering it.
From there the assembly goes back together in order: synthetic underlayment, ice-and-water membrane in the valleys and around penetrations, new metal at the eaves, rakes, valleys and every wall termination, then the finish material you selected. Pipe boots, vents and any skylight curbs are replaced or re-flashed at the same time — reusing tired flashing under a new roof is the most common way a new roof leaks in year two.
Ventilation gets checked as part of the job. A great deal of North Bay attic condensation and premature shingle aging traces back to intake and exhaust that were never balanced, and correcting it during a re-roof costs a fraction of doing it later.
Our Roof Replacement Process
- 01
Free on-site estimate
We walk the roof, measure it properly, photograph the problem areas and go through the attic side where there is access. You get a written scope that names the material, the underlayment and the flashing — not a single lump-sum number.
- 02
Material and color selection
We lay out the realistic options for your roof pitch, structure and budget: architectural composition, standing seam metal, tile or a low-slope membrane on the flatter sections, and where a Class A fire-rated assembly is required or worth choosing.
- 03
Protection and tear-off
Landscaping, decks, pool surrounds and AC units are covered before the first shingle comes off. Tear-off runs to bare deck so nothing is guessed at.
- 04
Deck repair and dry-in
Damaged sheathing is replaced, the deck is fastened off, and the roof is dried in with underlayment as each section is opened, so the structure is not left exposed to the weather.
- 05
New assembly and flashing
New edge metal, valley metal, wall and chimney flashing, vents and pipe boots go on with the new roofing — every penetration gets new hardware.
- 06
Cleanup and final walk
Debris hauled away, the drives and lawn swept for nails, then a walkthrough of the finished work and what we corrected along the way.
Why homeowners replace with us
Not sure it needs replacing yet?
Ask for a free roof inspection first. If the roof has five good years left we will tell you that, and quote the repair that gets you there.
Licensed, and the number is on everything
CSLB #1133025 is on the truck, the card and this site. You can look it up at cslb.ca.gov before you sign anything, and we would rather you did.
One crew, every roof type
Metal, tile, flat membrane and shingle are all in-house, which matters on the many North Bay homes that combine two or three of them on one structure.
Written, itemized scope
You see the underlayment, the flashing details and the ventilation plan in writing, so you can compare bids on something other than the bottom line.
Free estimates, guaranteed work
Estimates cost nothing, and the workmanship is guaranteed. Those are the two promises Rea Roofing puts its name to, and they apply to every job.
Rea Roofing project photos
Our own photographs of real jobs. Captions describe only what is visible in the frame.

Tear-off day on a residential re-roof — decking exposed and inspected, shingle bundles loaded to the ridge.

Standing seam metal roof on a hillside estate — continuous panels run ridge to eave with a matching ridge cap and hemmed edges.

Low-slope roof build-up in progress on a new concrete structure — cover board being set in two-part adhesive ahead of the membrane.
Roof Replacement questions
How long does a roof replacement take?
Most single-family North Bay re-roofs run a few days from tear-off to final cleanup, depending on square footage, pitch, how many layers come off and what the deck looks like underneath. Tile, metal and multi-material roofs take longer. We give you a schedule with the estimate and tell you promptly if the deck changes it.
Do I have to tear off the old roof, or can you go over it?
California allows a limited number of layers, but overlaying hides the deck — which is exactly where the information is. We tear off to bare sheathing so rot, delamination and old leak paths get fixed instead of buried under a new roof.
Can you work with my insurance or fire-rebuild scope?
Yes. We can quote against an adjuster's or builder's scope and point out where the assembly specified does not match what the roof actually needs. Send us the scope with your estimate request.
Free estimate — Roof Replacement
Tell us what the roof is doing and where it is. We will come and look at it, and the inspection costs you nothing.
More from Rea Roofing
Roof Replacement — free estimate, no obligation
Call or text (707) 332-0081, or send the details through the form. We cover Sonoma, Marin, Napa & Mendocino counties.
