Simi Hills at sunset above Simi Valley rooftops

Roofing in Simi Valley, CA, for inland heat, wind and winter rain

Treggo Lume Home Roofers provides roofing services in Simi Valley, California, from 1712 Erringer Rd, Simi Valley, CA 93065. Call (805) 669-9300 for a written scope after inspection of the actual roof.

Simi Valley is an incorporated city in Ventura County, and permits inside city limits run through the City of Simi Valley Building & Safety Division, not through LADBS.

  • We ask where the water is showing
  • We check roof age and material
  • We schedule an inspection
  • Photos before quotesYou see what we see
  • Scope written firstMaterials listed line by line
  • Deck checked at tear-offRotted sheets shown to you
  • Magnet sweep at cleanupNails off the lawn

Roofing Simi Valley CA by Local Crews

Roof work here is driven by inland heat, concentrated winter rain and Santa Ana wind, and the scope for each home follows its era, roof type and parcel fire-zone status.

Simi Valley contains High and Very High Fire Hazard Severity Zone parcels, but it is not correct to say that all of Simi Valley is Very High. The parcel's zone must be checked in the CAL FIRE / VCFD Fire Hazard Severity Zone viewer, and on a wildland-urban interface parcel the current citation is Title 24 Part 7, the California Wildland-Urban Interface Code, not the retired CBC Chapter 7A. On such a parcel a Class A fire-rated roof assembly is required.

Published regional market ranges include architectural asphalt at $550 to $900 per square and tile re-lay at $900 to $1,600 per square in a Torrance / South Bay 2026 guide, and California repair work most commonly at $450 to $3,200 in a Modernize guide updated 26 August 2026. One square is 100 square feet of roof surface, not floor area, and a written estimate follows inspection of the actual roof.

  • Attic sheathing and insulation
  • Flashing at chimney and valleys
  • Pipe boots and vent seals
  • Gutter pitch and downspout flow
Architectural shingle roof on a Simi Valley tract home
Flat commercial roof with drainage and parapet in Simi Valley

Roofing Services Across Simi Valley

Simi Valley is an ageing tract re-roof market, not a new-construction market. Most Simi Valley homes were built in the 1960s and the 1980s, with a median construction year in the late 1970s. A large share of roofs therefore sit on homes 35 to 65 years old, at or beyond a first or second re-roof cycle on age grounds alone, so each roof still needs its own inspection.

Explore every service
  • Roof Installation

    Treggo Lume Home Roofers provides roofing services in Simi Valley, California, from 1712 Erringer Rd, Simi Valley, CA 93065. Call (805) 669-9300 for a written scope after inspection of the actual roof.

    View service: Roof Installation
    Standing-seam metal roof on a Simi Valley home
  • Roof Replacement

    Simi Valley is an incorporated city in Ventura County, and permits inside city limits run through the City of Simi Valley Building & Safety Division, not through LADBS.

    View service: Roof Replacement
    Water stain on a ceiling under a leaking Simi Valley roof
  • Roof Repair

    Roof work here is driven by inland heat, concentrated winter rain and Santa Ana wind, and the scope for each home follows its era, roof type and parcel fire-zone status.

    View service: Roof Repair
    Missing shingles after wind damage on a Simi Valley roof
  • Roof Inspection

    Simi Valley contains High and Very High Fire Hazard Severity Zone parcels, but it is not correct to say that all of Simi Valley is Very High. The parcel's zone must be checked in the CAL FIRE / VCFD Fire Hazard Severity Zone viewer, and on a wildland-urban interface parcel the current citation is Title 24 Part 7, the California Wildland-Urban Interface Code, not the retired CBC Chapter 7A. On such a parcel a Class A fire-rated roof assembly is required.

    View service: Roof Inspection
    Rain over a Simi Valley valley roof during winter storms
  • Roof Maintenance

    Published regional market ranges include architectural asphalt at $550 to $900 per square and tile re-lay at $900 to $1,600 per square in a Torrance / South Bay 2026 guide, and California repair work most commonly at $450 to $3,200 in a Modernize guide updated 26 August 2026. One square is 100 square feet of roof surface, not floor area, and a written estimate follows inspection of the actual roof.

    View service: Roof Maintenance
    Tile lifted and stacked during an underlayment relay in Simi Valley
  • Shingle Roofing

    Simi Valley is an ageing tract re-roof market, not a new-construction market. Most Simi Valley homes were built in the 1960s and the 1980s, with a median construction year in the late 1970s. A large share of roofs therefore sit on homes 35 to 65 years old, at or beyond a first or second re-roof cycle on age grounds alone, so each roof still needs its own inspection.

    View service: Shingle Roofing
    Roll of roofing underlayment ready for installation

Treggo Lume Home Roofers provides roofing services in Simi Valley, California, from 1712 Erringer Rd, Simi Valley, CA 93065. Call (805) 669-9300 for a written scope after inspection of the actual roof.

  • Single-family homes
  • HOA communities
  • Tile and shingle roofs
  • Flat and low-slope roofs
  • Retail and office buildings
  • Rental property owners

Why Roofing Simi Valley CA Homeowners Call Us

Simi Valley is an incorporated city in Ventura County, and permits inside city limits run through the City of Simi Valley Building & Safety Division, not through LADBS.

Attic ventilation and roof venting in a Simi Valley home

Deck inspected before quoting

Call (805) 669-9300 for a written scope after inspection of the actual roof.

Seamless gutter being fitted along a Simi Valley roof edge

Materials matched to the slope

Simi Valley is an incorporated city in Ventura County, and permits inside city limits run through the City of Simi Valley Building & Safety Division, not through LADBS.

Flashing replaced, not caulked

Roof work here is driven by inland heat, concentrated winter rain and Santa Ana wind, and the scope for each home follows its era, roof type and parcel fire-zone status.

Skylight flashing being sealed on a Simi Valley roof

Ventilation measured, not guessed

Simi Valley contains High and Very High Fire Hazard Severity Zone parcels, but it is not correct to say that all of Simi Valley is Very High.

Site protected during tear-off

The parcel's zone must be checked in the CAL FIRE / VCFD Fire Hazard Severity Zone viewer, and on a wildland-urban interface parcel the current citation is Title 24 Part 7, the California Wildland-Urban Interface Code, not the retired CBC Chapter 7A.

Roofing Pricing in Simi Valley

Simi Valley is an incorporated city in Ventura County, and permits inside city limits run through the City of Simi Valley Building & Safety Division, not through LADBS.

Roof work here is driven by inland heat, concentrated winter rain and Santa Ana wind, and the scope for each home follows its era, roof type and parcel fire-zone status.

  • Repair, market range (California, Modernize, Aug 2026)Published market range, not a business pricePublished market range, not a business pricePublished market range, not a business pricePublished market range, not a business price
    $450-$3,200per job
  • Full replacement, asphalt market range (Torrance / Samson, 2026 guides)Published market range, not a business pricePublished market range, not a business pricePublished market range, not a business pricePublished market range, not a business price
    $550-$900 / squareper project

These are published Oct-2026 regional market ranges, not Treggo Lume prices. A written estimate follows inspection.

How a Roofing Job Runs

Simi Valley contains High and Very High Fire Hazard Severity Zone parcels, but it is not correct to say that all of Simi Valley is Very High. The parcel's zone must be checked in the CAL FIRE / VCFD Fire Hazard Severity Zone viewer, and on a wildland-urban interface parcel the current citation is Title 24 Part 7, the California Wildland-Urban Interface Code, not the retired CBC Chapter 7A. On such a parcel a Class A fire-rated roof assembly is required.

  • Aerial view of Simi Valley tract rooftops

    Inspect and Measure

    Published regional market ranges include architectural asphalt at $550 to $900 per square and tile re-lay at $900 to $1,600 per square in a Torrance / South Bay 2026 guide, and California repair work most commonly at $450 to $3,200 in a Modernize guide updated 26 August 2026. One square is 100 square feet of roof surface, not floor area, and a written estimate follows inspection of the actual roof.

  • Roofing crew installing architectural shingles in Simi Valley

    Written Estimate

    Simi Valley is an ageing tract re-roof market, not a new-construction market. Most Simi Valley homes were built in the 1960s and the 1980s, with a median construction year in the late 1970s. A large share of roofs therefore sit on homes 35 to 65 years old, at or beyond a first or second re-roof cycle on age grounds alone, so each roof still needs its own inspection.

  • Crew relaying clay tile over new underlayment in Simi Valley

    Tear-Off and Deck Repair

    Treggo Lume Home Roofers provides roofing services in Simi Valley, California, from 1712 Erringer Rd, Simi Valley, CA 93065. Call (805) 669-9300 for a written scope after inspection of the actual roof.

  • Sun-baked shingle roof in Simi Valley summer heat

    Install and Flash

    Simi Valley is an incorporated city in Ventura County, and permits inside city limits run through the City of Simi Valley Building & Safety Division, not through LADBS.

  • Moss growing on the shaded north slope of a shingle roof

    Final Walk and Cleanup

    Roof work here is driven by inland heat, concentrated winter rain and Santa Ana wind, and the scope for each home follows its era, roof type and parcel fire-zone status.

Roof Problems We Fix in Simi Valley

Simi Valley contains High and Very High Fire Hazard Severity Zone parcels, but it is not correct to say that all of Simi Valley is Very High. The parcel's zone must be checked in the CAL FIRE / VCFD Fire Hazard Severity Zone viewer, and on a wildland-urban interface parcel the current citation is Title 24 Part 7, the California Wildland-Urban Interface Code, not the retired CBC Chapter 7A. On such a parcel a Class A fire-rated roof assembly is required.

  • Overflowing gutter and stained fascia on a Simi Valley home

    Ceiling stain that keeps coming back after rain

    Simi Valley is an incorporated city in Ventura County, and permits inside city limits run through the City of Simi Valley Building & Safety Division, not through LADBS.

  • Concrete tile roof on a Simi Valley hillside home

    Shingles missing after a Santa Ana wind event

    Roof work here is driven by inland heat, concentrated winter rain and Santa Ana wind, and the scope for each home follows its era, roof type and parcel fire-zone status.

  • Architectural shingle roof on a Simi Valley tract home

    Moss growth on shaded north slopes

    Simi Valley contains High and Very High Fire Hazard Severity Zone parcels, but it is not correct to say that all of Simi Valley is Very High.

  • Flat commercial roof with drainage and parapet in Simi Valley

    Gutter overflow staining the fascia

    The parcel's zone must be checked in the CAL FIRE / VCFD Fire Hazard Severity Zone viewer, and on a wildland-urban interface parcel the current citation is Title 24 Part 7, the California Wildland-Urban Interface Code, not the retired CBC Chapter 7A.

  • Standing-seam metal roof on a Simi Valley home

    Attic too hot in summer, high energy bills

    On such a parcel a Class A fire-rated roof assembly is required.

Talk to a Simi Valley roofer

Customer reviews are not published on this website yet. If you would like to discuss a roof in Simi Valley, call Treggo Lume Home Roofers at (805) 669-9300 or visit 1712 Erringer Rd, Simi Valley, CA 93065. A written scope follows inspection of the actual roof.

Roofing Service Areas in Simi Valley

Simi Valley contains High and Very High Fire Hazard Severity Zone parcels, but it is not correct to say that all of Simi Valley is Very High. The parcel's zone must be checked in the CAL FIRE / VCFD Fire Hazard Severity Zone viewer, and on a wildland-urban interface parcel the current citation is Title 24 Part 7, the California Wildland-Urban Interface Code, not the retired CBC Chapter 7A. On such a parcel a Class A fire-rated roof assembly is required.

View every service area
Illustration of the area we cover.
Attic ventilation and roof venting in a Simi Valley home

Roofing coverage across Simi Valley

Published regional market ranges include architectural asphalt at $550 to $900 per square and tile re-lay at $900 to $1,600 per square in a Torrance / South Bay 2026 guide, and California repair work most commonly at $450 to $3,200 in a Modernize guide updated 26 August 2026.

Roofing Simi Valley CA Questions

Simi Valley is an ageing tract re-roof market, not a new-construction market. Most Simi Valley homes were built in the 1960s and the 1980s, with a median construction year in the late 1970s. A large share of roofs therefore sit on homes 35 to 65 years old, at or beyond a first or second re-roof cycle on age grounds alone, so each roof still needs its own inspection.

Treggo Lume Home Roofers provides roofing services in Simi Valley, California, from 1712 Erringer Rd, Simi Valley, CA 93065. Call (805) 669-9300 for a written scope after inspection of the actual roof.

Seamless gutter being fitted along a Simi Valley roof edge

Get Your Roofing Simi Valley CA Estimate Today

Simi Valley is an incorporated city in Ventura County, and permits inside city limits run through the City of Simi Valley Building & Safety Division, not through LADBS.

Contact Our Simi Valley Roofers

Call Treggo Lume Home Roofers at (805) 669-9300 or visit 1712 Erringer Rd, Simi Valley, CA 93065, to discuss your roof.

Simi Valley contains High and Very High Fire Hazard Severity Zone parcels, but it is not correct to say that all of Simi Valley is Very High. The parcel's zone must be checked in the CAL FIRE / VCFD Fire Hazard Severity Zone viewer, and on a wildland-urban interface parcel the current citation is Title 24 Part 7, the California Wildland-Urban Interface Code, not the retired CBC Chapter 7A. On such a parcel a Class A fire-rated roof assembly is required.

(805) 669-9300

Questions about your roof?

Call (805) 669-9300 or visit 1712 Erringer Rd, Simi Valley, CA 93065.