Not Ready to Replace? Restore.

Composition Roof Restoration in Santa Rosa

If your asphalt shingle roof is weathered, mossy, or tired but not failing, restoration cleans, repairs, and waterproofs it to add years of life for a fraction of the cost of a new roof. Backed by a one-year warranty against leaks.

(707) 591-9288Free Assessment
Before and after composition roof restoration by Northbay in Santa Rosa

Top 2%

GAF Master Elite

25+

Years in Business

1-Year

Leak Warranty

Eco-Safe

Cleaning Products

The Smart Middle Path

Repair, Restore, or Replace?

Three roofs, three answers. Restoration is the option most homeowners overlook, and for an aging but sound roof, it is often the smartest money you can spend.

build

Repair

Fix a specific problem: a leak, storm damage, or a few failed shingles.

Roof repair >
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Restore

Clean, treat, and waterproof an aging-but-sound roof to add years and delay a big expense.

roofing

Replace

Start fresh when the roof is at the end of its life or damage is widespread.

Roof replacement >

Is It Time?

Signs Your Roof Needs Restoration

check_circleGreen or black moss and algae streaks
check_circleGranules collecting in your gutters
check_circleShingles that look dry, faded, or curling
check_circleA roof that looks old and worn but is not leaking
check_circleNorth-facing or tree-shaded slopes staying damp
check_circleYou want to delay replacement without ignoring the roof

Our Process

What a Northbay Restoration Includes

A thorough, multi-step system that cleans, repairs, and re-protects your roof from the surface down.

1

Roof Surface Cleaning

We remove all debris from the roof surface, valleys, water channels, skylights, and chimneys.

2

Shingle Repairs

We replace missing or damaged shingles and re-secure ridge caps for proper fastening.

3

Eco-Friendly Treatment

We apply Wash Safe Roof Cleaner across the roof, followed by a light power wash to remove moss, algae, and surface buildup.

4

Moss & Waterproofing Treatment

We apply Moss Out for long-lasting protection, with targeted Flex Seal liquid rubber on severely deteriorated shingles that are no longer waterproof.

5

Leak Prevention

We inspect and seal all critical flashing: pipe collars, vents, skylights, roof-to-wall transitions, and chimneys.

6

Gutter Service

We clean and clear gutters and downspouts to restore proper drainage.

7

Final Cleanup

We complete a full job-site cleanup and remove all project debris before we leave.

Warranty: Every restoration is guaranteed against roof leaks for one year. Interior damage resulting from existing or future leaks is not included.

See the Difference

A real Northbay composition roof restoration, before and after. Same roof, years of life added.

Composition roof restoration before and after results in Sonoma County

Why North Bay Roofs Need It

Shade, Fog, and Moss Are Hard on Shingles

The same tree cover and coastal fog that make Sonoma and Marin beautiful keep composition roofs damp, and damp shingles grow moss and algae, especially on north-facing slopes in Sebastopol, west county, and the shaded pockets of Marin. Left alone, that growth lifts and holds moisture against the shingle until it fails early. Restoration strips it off, treats the surface, and re-protects the roof before the damage becomes permanent, so you get the full life your shingles were built for.

Information

Roof Restoration FAQs

What is composition roof restoration?

It is a multi-step service that cleans, repairs, treats, and waterproofs an aging asphalt shingle roof so it lasts longer without a full replacement. It removes moss and algae, re-secures shingles and ridge caps, seals flashing, and protects deteriorated shingles, all backed by a one-year warranty against leaks.

Is roof restoration cheaper than a new roof?

Yes. Restoration costs a fraction of a full replacement and can add meaningful years to a roof that is weathered but still sound. It is not a substitute when a roof is truly at the end of its life, and we will tell you honestly which situation you are in.

How many years can restoration add to my roof?

It depends on the current condition of the shingles and decking. On a sound but weathered roof, restoration can add several years of service life and delay the cost of replacement. We assess your specific roof during a free inspection rather than promising a fixed number.

Will restoration fix a roof leak?

Restoration includes sealing flashing and repairing damaged shingles, so it addresses many minor leak sources. An active or major leak may need dedicated roof repair or, if the roof is failing, replacement. We inspect first and recommend the right path.

Will the moss and algae come back?

Our Moss Out treatment provides long-lasting protection, but north-facing and heavily shaded roofs in the North Bay stay damp and may need periodic re-treatment. An annual inspection keeps growth from taking hold again.

How long does a composition roof restoration take?

Most restorations take one to two days depending on the size of the roof and how much cleaning, repair, and treatment it needs. We complete a full job-site cleanup before we leave.

Add Years to Your Roof

Book a free assessment and we will tell you honestly whether your roof is a candidate for restoration or ready for replacement. No pressure, either way.

call (707) 591-9288

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