Serving Windsor and Northern Colorado
Roofing Contractor in Windsor, Colorado
Drennen Custom Contracting provides roof replacement, roof repair, Class 4 and SBS roofing systems, inspections, flashing work, ventilation corrections, and related general-contracting repairs in Windsor and surrounding Northern Colorado communities.
Our estimates are built around the complete roof system - not only the field shingles. That includes decking, waterproofing, wall flashing, penetrations, ventilation, permit coordination, cleanup, warranty options, and the adjacent construction that makes the roof watertight.
Windsor extends across Weld and Larimer counties, and nearby properties can fall under different authorities. Drennen verifies the permitting jurisdiction for the exact address before work begins.
Windsor Roofing Services
Roof replacement
Complete tear-off and installation of a documented asphalt, Class 4, SBS, metal, or appropriate low-slope system based on the property and project scope.
Roof repair
Localized repairs to shingles, flashing, pipe jacks, vents, valleys, chimneys, skylights, decking, fascia, soffit, siding transitions, and drainage details.
Class 4 and SBS roofing
Impact-resistant systems for homeowners comparing hail resilience, flexibility, insurance documentation, and long-term value.
Attic ventilation
Calculated intake and exhaust, removal of competing vent types, ridge or static exhaust, roof-deck or soffit intake, and accessible bath-exhaust corrections.
Inspections and certifications
Condition reports, maintenance scopes, real-estate evaluations, insurance-related documentation, and limited certifications when supported by the roof's condition.
Storm-damage scope
Documentation of visible physical damage, repair or replacement estimates, and discussion of construction scope with an insurer when permitted and supported by a valid contract.
Town of Windsor Permits and Inspections
The Town of Windsor requires a building permit to re-roof a house so required inspections can confirm compliance with the adopted building code. Windsor states that the 2024 International Codes became effective January 1, 2026.
The town uses Community Core for online permit accounts and applications. Building inspection requests are coordinated through SAFEbuilt under the town's current instructions. Procedures, contacts, forms, and fees can change, so Drennen verifies them before each project.
- Confirm Town of Windsor jurisdiction.
- Apply through the current permit system.
- Build to the adopted code and Windsor amendments.
- Coordinate required inspection requests.
- Complete permit closeout and retain the record.
Properties outside Town of Windsor limits may follow Weld County, Larimer County, Severance, or another authority. The governing agency's current requirements control.
A Detailed 2026 Windsor Roof Example
One recent Windsor project shows why size alone cannot explain price.
Measured tear-off area
26.15 roofing squares
Installed material quantity
29.64 roofing squares, reflecting starter, ridge, cuts, and expected waste
Pre-project-specific-discount total
Approximately $19,600
The project included much more than removing and replacing shingles:
- Six sheets of roof-deck replacement.
- Chimney waterproofing and counterflashing.
- Approximately 234 linear feet of sidewall and headwall flashing.
- Eight pipe jacks.
- Two dedicated bath-exhaust roof vents.
- A combustion-vent cap.
- Roof-deck intake ventilation and high exhaust ventilation.
- Ice-and-water barrier and synthetic underlayment.
- Drip edge, valley metal, starter shingles, and related accessories.
- Owens Corning Duration FLEX SBS Class 4 field shingles and impact-resistant ridge.
A simpler 26-square roof may cost less. This project demonstrates the value of publishing the complete scope beside the price.
The example is anonymized and rounded. It is not an offer, insurance estimate, or guaranteed price for another property.
What Makes Windsor Roofs Different From One Another?
Newer subdivisions and complex roof shapes
Many Windsor homes have multiple hips, valleys, dormers, walls, porches, and garage rooflines. Those details increase material waste and flashing work even when the home's floor area is moderate.
Long roof-to-wall transitions
Sidewalls and headwalls require properly sequenced step flashing, apron or headwall flashing, water-resistive layers, siding integration, and gutter kickouts. Reusing incomplete metal can undermine an otherwise new roof.
Wind exposure
Open terrain and neighborhood layout can increase wind exposure. Shingle selection, starter, edge fastening, ridge, deck attachment, and manufacturer instructions must be coordinated with the adopted code and site.
Ventilation in tightly built homes
Newer construction can still have blocked soffits, undersized intake, disconnected bath ducts, competing vents, or attic zones that do not communicate. Drennen calculates the net-free area rather than assuming the original system was balanced.
Jurisdiction boundaries
Windsor-area mailing addresses may be controlled by the town or a county. Permit fees, code amendments, inspection methods, and Class 4 requirements can differ. Correct jurisdiction research prevents schedule and compliance problems.
The Drennen Windsor Roofing Process
- 1
Inspect and measure
We identify roof area, geometry, layers, pitch, stories, access, penetrations, walls, decking indicators, ventilation, and related repairs.
- 2
Verify jurisdiction
Drennen confirms the authority having jurisdiction and current permit, code, and inspection procedures.
- 3
Specify the complete roof
The proposal names the exact shingles or membrane, underlayment, waterproofing, starter, ridge, flashing, vents, known repairs, open items, warranty, and price.
- 4
Protect the property
Landscaping, siding, windows, patios, driveways, gutters, and neighboring areas are considered in the staging and cleanup plan.
- 5
Tear off and document
The old roof is removed, the deck is inspected, and hidden conditions are photographed and handled under the written change-order process.
- 6
Install, inspect, and close out
The approved system is installed, required inspections are coordinated, the site is cleaned, and final product and warranty records are provided.
Class 4 and SBS Options for Windsor
A Class 4 rating identifies the highest classification in the UL 2218 steel-ball impact test, but it does not make a roof hail-proof. Drennen helps compare conventional architectural shingles, non-SBS Class 4 products, and SBS polymer-modified Class 4 systems.
Duration FLEX is one SBS option currently described by Owens Corning as UL 2218 Class 4 and equipped with SureNail technology. The installed system should also use intentional starter, ridge, underlayment, flashing, and ventilation components.
Ask the insurance agent whether the exact product qualifies for a discount or underwriting benefit and how the policy handles roof age, cosmetic damage, depreciation, and wind-and-hail deductibles.
Compare Class 4 Roofing SystemsRoof Repairs in Windsor
Repair can be appropriate when the defect is localized and the surrounding roof remains serviceable. Drennen repairs:
- Missing or damaged shingles.
- Pipe jacks and exposed fasteners.
- Sidewall, headwall, chimney, and kickout flashing.
- Bath, kitchen, combustion, and static roof vents.
- Valleys and low-slope transitions.
- Decking, soffit, fascia, and siding damage.
- Ventilation and accessible exhaust-duct problems.
- Localized storm damage and maintenance items.
A repair proposal should identify the work area and limitations. It does not convert the remainder of an older roof into a warranted new system.
Frequently Asked Questions
Request a Windsor Roofing Evaluation
Drennen will measure the roof, verify jurisdiction, explain the complete scope, and help you compare the price for the same system. The result is a project built around your actual home rather than a generic per-square promise.
Prices, product availability, codes, permit procedures, warranty terms, and insurance treatment can change. Current agency requirements, written proposal, signed contract, manufacturer documents, and insurance policy control.
Drennen Custom Contracting | Serving Windsor and Northern Colorado | 970-482-9100 | [email protected]