Complete Exterior Home Renovation Checklist for PA & NJ Homeowners

# Complete Exterior Home Renovation Checklist A full exterior renovation is one of the biggest investments you'll make in your home. Done right, it transforms curb appeal, cuts energy costs, and protects your home for decades. Done in the wrong order or with poor planning, it wastes money and creates headaches. We've managed hundreds of exterior renovation projects across the Lehigh Valley and Warren County. This checklist follows the exact sequence we recommend, based on what we've seen work (and what we've seen go wrong). ## Quick Answer **Always work from the top down: roof first, then siding, then gutters, then trim and finishing details.** This order prevents rework and damage to completed sections. Budget 10-15% above estimates for unexpected issues (especially on homes older than 30 years). A complete exterior renovation for a typical 2,000 sq ft home in PA or NJ runs $35,000-$75,000 depending on materials chosen. Plan the project for spring through fall, with spring and early fall being the ideal windows. ## Phase 1: Assessment and Planning Before spending a dollar on materials, complete this planning phase: ### Home Inspection Checklist Walk your entire property and document the current condition: **Roof:** - [ ] Shingle condition (curling, missing, granule loss) - [ ] Flashing around chimneys, vents, skylights - [ ] Ridge cap condition - [ ] Soffit and fascia condition - [ ] Any visible sagging or structural concerns - [ ] Interior signs of leaks (attic stains, ceiling spots) **Siding:** - [ ] Cracks, holes, or missing sections - [ ] Warping or buckling - [ ] Fading or chalking - [ ] Moisture damage or soft spots - [ ] Caulk condition around windows and doors - [ ] Paint condition (if applicable) **Gutters:** - [ ] Sagging or pulling away from fascia - [ ] Leaking joints or seams - [ ] Rust or corrosion - [ ] Proper drainage away from foundation - [ ] Downspout condition and direction **Foundation and Grading:** - [ ] Visible cracks in foundation - [ ] Water pooling near foundation - [ ] Soil grading direction (should slope away from house) - [ ] Basement moisture issues **Windows and Doors:** - [ ] Drafts or air leaks - [ ] Condensation between panes (seal failure) - [ ] Operational issues (hard to open/close) - [ ] Frame condition (rot, damage) - [ ] Weather stripping condition ### Set Your Budget Typical costs for a complete exterior renovation in our area: | Component | Budget Range | % of Total | |-----------|-------------|-----------| | Roof replacement | $8,000-$18,000 | 25-35% | | Siding replacement | $12,000-$30,000 | 30-40% | | Gutter replacement | $1,500-$4,000 | 5-8% | | Window replacement | $8,000-$20,000 | 15-25% | | Trim, soffit, fascia | $2,000-$6,000 | 5-10% | | Painting/finishing | $1,500-$4,000 | 3-6% | | Contingency (10-15%) | $3,500-$11,000 | 10-15% | **Financing options:** Many homeowners finance exterior renovations through home equity loans, HELOC lines, or contractor financing programs. We offer financing options for qualified homeowners that make large projects more manageable. ### Permits and HOA Approval **Permits:** Most PA and NJ municipalities require permits for roofing and siding work. In Allentown, Bethlehem, and Easton, building permits are required for full roof and siding replacements. Your contractor typically handles permit applications, but confirm this before work begins. **HOA restrictions:** If you live in a community with an HOA, get written approval for materials and colors before ordering anything. HOA approval can take 2-6 weeks, so submit early. ### Hire Contractors For a full exterior renovation, you have two options: **One contractor for everything (recommended):** Hiring a single company that handles roofing, siding, and gutters ensures proper sequencing, coordination, and accountability. If the siding installer damages the new roof, there's no finger-pointing between companies. **Multiple specialized contractors:** This can sometimes save money, but requires you to manage scheduling, resolve conflicts, and coordinate the work sequence yourself. **What to verify before hiring:** - [ ] Valid license for your state (PA and NJ have different requirements) - [ ] General liability and workers' compensation insurance (current certificates) - [ ] Manufacturer certifications (GAF Master Elite for roofing, James Hardie Elite Preferred for siding) - [ ] References from similar projects in your area - [ ] Written contract with scope, timeline, payment schedule, and warranty terms - [ ] Better Business Bureau rating and online reviews ## Phase 2: Structural Repairs (If Needed) Before any cosmetic work, address structural issues: - [ ] Repair or reinforce compromised roof decking - [ ] Fix rotted wall sheathing - [ ] Address foundation drainage issues - [ ] Repair structural framing damage - [ ] Correct grading problems Skipping structural repairs and covering them with new materials is the most expensive mistake in exterior renovation. Rotted sheathing under new siding will continue rotting. A sagging roof deck under new shingles will still sag. ## Phase 3: Roof Replacement **Why roof goes first:** Everything below the roofline can be damaged during a roof replacement (falling debris, foot traffic on scaffolding, material handling). If you install new siding first and then replace the roof, you risk denting, scratching, or staining the siding you just paid for. ### Roof Replacement Checklist - [ ] Remove existing shingles down to decking - [ ] Inspect and repair/replace damaged decking - [ ] Install ice and water shield at eaves and valleys (code requirement in PA and NJ) - [ ] Install synthetic underlayment on remaining deck - [ ] Install drip edge at eaves and rakes - [ ] Install starter strip shingles - [ ] Install field shingles per manufacturer specifications - [ ] Install ridge vent for proper ventilation - [ ] Flash all penetrations (chimney, vents, pipes, skylights) - [ ] Install ridge cap shingles - [ ] Clean up all debris and run magnet for nails **Timeline:** 1-3 days for a standard roof replacement. **Cost in our area:** $8,000-$18,000 for asphalt shingles on a typical home. See our detailed [roof replacement cost guide](/blog/roof-replacement-cost-pa-nj-2026). ## Phase 4: Window and Door Replacement (If Planned) **Why windows go before siding:** New windows often require adjustments to the surrounding wall opening. If siding is already installed, it needs to be cut and patched around new windows, creating visible seams and potential water entry points. Installing windows first lets the siding crew integrate the window flashing seamlessly. ### Window Replacement Checklist - [ ] Measure all openings precisely - [ ] Order windows (lead time: 3-6 weeks for custom sizes) - [ ] Remove old windows and inspect framing - [ ] Repair any rotted framing or sill plates - [ ] Install new windows with proper shimming and leveling - [ ] Flash windows with self-adhesive membrane per manufacturer specs - [ ] Insulate gaps with low-expansion foam - [ ] Temporary exterior trim (will be finished with siding) **Timeline:** 1-2 days for a typical home (8-15 windows). ## Phase 5: Siding Replacement With the roof on and windows in, the siding crew has clean surfaces to work with and proper flashing to tie into. ### Siding Replacement Checklist - [ ] Remove existing siding - [ ] Inspect and repair sheathing (replace rotted sections) - [ ] Install housewrap (Tyvek or equivalent) with proper lapping - [ ] Flash all window and door openings with self-adhesive membrane - [ ] Install starter strip at bottom - [ ] Install corner posts, J-channel, and trim pieces - [ ] Install siding panels from bottom up - [ ] Ensure proper nailing (not too tight for vinyl, correct pattern for fiber cement) - [ ] Install utility blocks around fixtures and penetrations - [ ] Caulk all required joints (varies by material) - [ ] Install soffit panels and fascia wraps **Timeline:** 1-2 weeks depending on home size and material. **Cost in our area:** $12,000-$30,000+. See our detailed [siding replacement cost guide](/blog/siding-replacement-cost-pa-nj-2026). ### Material Selection Guide | If You Want... | Choose... | Budget Per Sq Ft | |---------------|-----------|-----------------| | Lowest cost, minimal maintenance | Premium vinyl | $4-$8 | | Maximum durability, fire resistance | James Hardie fiber cement | $8-$14 | | Wood look without wood maintenance | LP SmartSide engineered wood | $6-$10 | | Historic appearance | Cedar or Hardie shingle panels | $10-$18 | | Best insulation value | Insulated vinyl siding | $6-$10 | ## Phase 6: Gutter Installation **Why gutters go after siding:** Gutters attach to the fascia, which is installed as part of the siding project. New gutters need clean, straight fascia to mount properly. Installing gutters before siding is complete means they'll need to be removed and reinstalled. ### Gutter Installation Checklist - [ ] Remove old gutters, spikes, and hangers - [ ] Inspect fascia board condition (replace if needed) - [ ] Install new gutter hangers at proper spacing (every 24-36 inches) - [ ] Install seamless gutters with proper pitch toward downspouts - [ ] Connect downspouts with proper elbows and extensions - [ ] Direct downspout discharge 4-6 feet from foundation - [ ] Install gutter guards if selected - [ ] Test system with water for proper flow and drainage **Timeline:** 1 day for most homes. **Cost in our area:** $1,500-$4,000 for seamless aluminum gutters. See our [gutter services page](/services/gutter-services) for details. ## Phase 7: Finishing Details The final touches that complete the renovation: - [ ] Touch-up paint on trim, doors, or accent areas - [ ] Install or update exterior light fixtures - [ ] Replace or refinish house numbers and mailbox - [ ] Update shutters (if applicable) - [ ] Power wash concrete (driveway, walkways, patio) - [ ] Repair or seal driveway/walkway cracks - [ ] Landscape restoration (any areas disturbed during construction) - [ ] Final cleanup and debris removal ## Phase 8: Post-Renovation Documentation This step is often forgotten, but it protects your investment: - [ ] Collect all warranty documents (manufacturer and installer) - [ ] Get copies of permits and inspection sign-offs - [ ] Photograph the completed work from all angles - [ ] Document paint colors and product model numbers for future touch-ups - [ ] File insurance update (your coverage should reflect the improved value) - [ ] Set calendar reminders for maintenance intervals ## Seasonal Timing for PA & NJ | Season | Good For | Avoid | |--------|----------|-------| | Spring (April-May) | Roofing, siding, gutters | Starting before last frost (late April in our area) | | Summer (June-August) | All exterior work | Scheduling during peak vacation season (crews may be stretched) | | Early Fall (September-October) | Roofing, siding, gutters | Best window for full renovations before winter | | Late Fall (November) | Minor finishing work | Starting major projects | | Winter (December-March) | Planning, ordering, and scheduling for spring | Most exterior installation work | **Pro tip:** Book your contractor in January or February for a spring start. The best crews book 4-8 weeks out during peak season. Early planning also gives you time to order specialty materials without rush charges. ## Common Exterior Renovation Mistakes **Working bottom-up instead of top-down.** New siding gets damaged during roof replacement. New gutters get knocked off during siding work. Always start with the roof. **Skipping the housewrap.** Some contractors try to reuse old housewrap or skip it entirely to save money. Housewrap is your home's last line of defense against water. New siding over compromised housewrap is a recipe for hidden moisture damage. **Choosing materials based on price alone.** The cheapest vinyl siding and basic 3-tab shingles will save money upfront but cost more over 20 years in maintenance, repairs, and earlier replacement. Mid-range materials from reputable manufacturers offer the best long-term value. **Not addressing drainage.** A beautiful new exterior means nothing if water pools against your foundation. Grading, downspout extensions, and proper drainage should be part of every exterior renovation plan. **Ignoring insulation opportunities.** While the siding is off, it's the perfect time to add rigid foam insulation or upgrade your housewrap to an insulating system. The labor to access the wall is already paid for. ## Get a Renovation Plan Every home is different, and a good renovation plan starts with understanding exactly what your home needs. We provide free exterior assessments that document current conditions, prioritize repairs, and give you a clear scope and budget for your project. [Schedule a free exterior assessment](/contact) and get a customized renovation plan for your home. We serve homeowners across Allentown, Bethlehem, Easton, Nazareth, Phillipsburg, and the surrounding Lehigh Valley and Warren County communities.