Services

Herndon, VA Roofing and Construction Services

Licensed crews. Clear scopes. Built for your roof and your long-term investment.

Herndon & DMV Projects

Recent work across your community

1 / 12 · Shingles

Finished residential asphalt shingle roof on a red brick home in Herndon, VA by J Castillo Construction — Residential Shingle Roof
Clean shingle replacement with crisp lines and proper ventilation.

J Castillo Construction roofing crew performing a full roof tear-off and replacement in Northern Virginia — Full Roof Replacement
Licensed crew, safety gear, and a thorough tear-off every time.

GAF Timberline HD shingles and FeltBuster underlayment installed by J Castillo Construction — GAF Timberline Install
Premium GAF materials for lasting curb appeal and weather protection.

Polyglass and Elastoflex SA P flat roof membrane installation by J Castillo Construction in Herndon, VA — Flat Roof Membrane
Self-adhered flat roof systems built for long-term leak resistance.

Commercial ballasted flat roof with gravel surfacing and HVAC walkway by J Castillo Construction — Commercial Flat Roof
Ballasted systems with safe maintenance walkways for commercial roofs.

New skylight installed next to an old unit on a shingle roof by J Castillo Construction — Skylight Replacement
Proper flashing and a watertight seal around every skylight.

Kitchen remodeling in progress with shaker cabinets by J Castillo Construction in Herndon, VA — Kitchen Remodel
Interior remodels handled with the same precision as our roofs.

Custom wooden boat house with grey shingled hip roof under construction by J Castillo Construction — Custom Waterfront Build
Framing and roofing for custom outdoor and waterfront structures.

ABC Pro Guard underlayment and new decking during residential roof replacement by J Castillo Construction — Decking & Underlayment
Solid decking and quality underlayment before a single shingle goes down.

Black rubber membrane flat roof installation in progress by J Castillo Construction near Herndon, VA — EPDM Flat Roof
Durable rubber membrane systems for low-slope residential roofs.

Waterproof membrane installation on a flat deck surface by J Castillo Construction — Deck Waterproofing
Waterproof surfaces that stand up to Northern Virginia weather.

J Castillo Construction crew installing Polyglass flat roof membrane on a residential home — Crew in Action
Experienced hands on every seam, fastener, and detail.

Core Services

Five trades. One standard.

Detailed scopes for your roof and your property — with a Pro-Tip on every trade.

Roofing

From leak diagnostics to complete tear-offs, J Castillo Construction delivers roofing built for Northern Virginia weather. Every project starts with a thorough inspection of your decking and structure, because a roof is only as good as what's underneath it. We remove old materials down to the deck, replace any compromised sheathing, and install quality underlayment and ice-and-water shield before a single shingle goes down. Our crews finish with manufacturer-backed systems and proper ventilation, then walk the property with you so nothing is left to guess about — and we leave your yard cleaner than we found it.

What we deliver

Full roof replacements
Roof repairs & leak diagnostics
Skylight installation & replacement
Ventilation upgrades
Storm damage assessments

Pro-Tip

Homeowner Tip: Inspect your attic after heavy rain for damp insulation — early detection protects your structure.

Maintenance tips for homeowners

Inspect your attic after heavy rain for damp insulation or stains.
Clear debris from valleys and around plumbing vents twice a year.
Trim overhanging branches that can scrape shingles in high wind.
Schedule a professional inspection every 2–3 years, or after major storms.

Get a quote for your roofing

Gutters

Clogged or failing gutters send water straight into your fascia, foundation, and landscaping — and in Northern Virginia's freeze-thaw winters, that water damage compounds fast. We fabricate and install seamless aluminum gutters custom-sized to your roof's footprint, so there are no leaky joints along the run. Every system is set with the correct pitch, heavy-duty hangers spaced for snow load, and downspouts routed to carry water well away from your foundation. We also assess your fascia and soffit while we're up there, since hidden rot is often the real reason gutters start to sag.

What we deliver

Seamless gutter installation
Downspout replacement & extensions
Gutter guards & leaf protection
Fascia and soffit repairs
Gutter cleaning & realignment

Pro-Tip

Homeowner Tip: Check your gutters every 6 months to prevent foundation leaks.

Maintenance tips for homeowners

Clean gutters in late fall after leaves drop and again in early spring.
Check that downspouts discharge at least 4–6 feet from the foundation.
Look for sagging sections—those usually mean loose hangers or debris weight.
After ice storms, avoid yanking ice by hand; call us if ice dams form.

Get a quote for your gutters

Shingles

The right shingle system is your home's primary defense against wind, UV exposure, and the freeze-thaw cycles that are common across Fairfax County. We recommend and install architectural asphalt shingles from trusted manufacturers like GAF, chosen to match your home's style and your budget — from standard three-tab options to impact-resistant Timberline HD systems. Every installation includes matching ridge caps, starter strips along the eaves, and ice-and-water shield in valleys and other leak-prone areas, so the finished roof performs as well as it looks from the curb.

What we deliver

Architectural asphalt shingles
GAF Timberline HD installations
Ridge cap & hip detailing
Ice & water shield in valleys
Color matching & curb-appeal consults

Pro-Tip

Homeowner Tip: After high winds, look for curled or missing shingles before a small repair becomes a full slope.

Maintenance tips for homeowners

Watch for curled, cracked, or missing shingles after wind events.
Granule loss in gutters can signal aging—mention it at your next inspection.
Never walk on a hot roof; soft asphalt can crease and void warranties.
Keep moss and algae off north-facing slopes with approved cleaners only.

Get a quote for your shingles

Polyglass Elastoflex flat roof installation by J Castillo Construction in Herndon, VA

Flat Roofs

Flat and low-slope roofs fail differently than pitched roofs — the biggest threats are ponding water, seam failure, and foot-traffic damage rather than wind-lifted shingles. We specialize in self-adhered Polyglass membranes, EPDM rubber roofing, and ballasted gravel systems, each chosen based on your roof's slope, drainage, and use. Seams are torched or adhered with precision, drains and scuppers are set to eliminate standing water, and we install designated walk pads around HVAC units so routine maintenance never compromises the membrane. It's the right system for additions, commercial buildings, and modern low-slope residential designs alike.

What we deliver

Polyglass & self-adhered membranes
EPDM rubber roofing
Ballasted commercial systems
Deck & rooftop waterproofing
Ponding water & drainage fixes

Pro-Tip

Homeowner Tip: Keep drains and scuppers clear — standing water shortens membrane life.

Maintenance tips for homeowners

Keep drains and scuppers clear—standing water shortens membrane life.
Limit foot traffic; use designated walk pads when accessing HVAC.
After storms, check seams and flashings for lifts or punctures.
Have us inspect membrane roofs annually—small repairs beat full replacement.

Get a quote for your flat roofs

Remodeling

Beyond the roof, our crew handles remodeling projects with the same licensed discipline we bring to every tear-off — cabinetry, framing, and custom structures built to last. Whether you're refreshing a kitchen, finishing an interior space, or framing a custom outdoor structure like a boat house or covered dock, we plan the sequencing so structural work, roofing, and finishes come together cleanly instead of competing with each other. You get one accountable crew managing the whole scope, not a rotating cast of subcontractors.

What we deliver

Kitchen remodeling
Interior finish carpentry
Custom outdoor & waterfront structures
Exterior repairs tied to roofing work
Project coordination & punch-list closeout

Pro-Tip

Homeowner Tip: Sequence roof work before interior finishes so weather never delays your remodel.

Maintenance tips for homeowners

Address water stains on ceilings promptly—they often trace back to the roof.
When remodeling, plan ventilation and insulation upgrades at the same time.
Protect new floors and cabinets during any concurrent exterior work.
Ask about sequencing: roof first, then interiors, to avoid weather delays.

Get a quote for your remodeling