Even the most well-planned renovation comes with surprises… especially on Long Island, where older homes, strict village regulations, and unique building conditions can bring unexpected challenges. The good news? Most issues are predictable if you know what to look for.
Here are the most common surprises homeowners run into during a renovation, and how the right contractor helps you prepare for all of them.
Why Renovations Come With Surprises
Renovations involve working with an existing structure and sometimes that structure may be decades or even a century old. Walls hide problems, codes change over time, and opening up a home often reveals issues that weren’t visible during the walkthrough.
On Long Island specifically, surprises are more common because:
- Many homes date back to the early 1900s (and in some towns, even earlier!)
- Previous renovations may not have been done to code
- Electrical, plumbing, and HVAC systems vary widely
- Local building departments have strict standards
- Coastal areas introduce moisture and structural considerations
With the right planning, most surprises can be handled smoothly and with minimal disruption.
Surprise #1 — Hidden Structural Issues
Once walls, ceilings, or floors are opened, contractors often uncover structural problems that need immediate attention. These can include:
- Rotting or undersized beams
- Damaged subflooring
- Sagging joists
- Unsupported load-bearing walls
- Termite damage
How to Prepare
- Budget a contingency of 10-20% for structural findings.
- Work with a contractor who collaborates with licensed engineers.
- Expect an updated plan if structural changes are required.
Surprise #2 — Outdated Electrical or Plumbing
Homes built before the 1980s often contain electrical or plumbing systems that no longer meet today’s safety and building codes.
Common discoveries include:
- Knob-and-tube wiring
- Galvanized or corroded plumbing
- Inadequate amperage for modern appliances
- Unvented plumbing
- DIY work from previous owners
How to Prepare
- Assume older homes will need electrical or plumbing upgrades.
- Get a thorough inspection before work begins.
- Choose a contractor who works with licensed, vetted trades.
Surprise #3 — Mold, Moisture, or Water Damage
Long Island homes, especially those near the coast, often hide moisture issues behind walls or beneath flooring. Renovations commonly expose:
- Mold growth
- Leaks around windows or roofs
- Exterior water intrusion
- Poor insulation or vapor barriers
How to Prepare
- Ask your contractor about proper waterproofing and ventilation.
- Address moisture early to prevent future damage.
- Include mold remediation as a possible contingency item.
Surprise #4 — Permit Delays
Even when paperwork is perfect, village approvals can take longer than expected. Some towns on the North Shore have Architectural Review Boards, zoning reviews, tree removal requirements, or historical preservation rules.
Delays are common when:
- Additional documentation is requested
- A zoning variance is required
- Board meetings are monthly or bi-monthly
- Village inspectors request revisions
How to Prepare
- Submit permits early in the process.
- Work with a contractor experienced in your specific village.
- Build extra time into the project timeline.
Surprise #5 — Material Delays or Price Changes
Lead times and availability can shift quickly, especially for:
- Windows and doors
- Custom cabinetry
- Tile and stone
- Specialty fixtures
- HVAC equipment
Price increases can also occur if materials aren’t ordered early.
How to Prepare
- Finalize your selections as early as possible.
- Order long-lead items upfront.
- Keep flexibility in finishes when possible.
Surprise #6 — Asbestos or Lead Paint in Older Homes
Many homes built before the 1970s contain asbestos, lead paint, or both. These materials are safe when undisturbed, but once demolition begins, proper remediation becomes necessary.
How to Prepare
- Expect testing during pre-construction.
- Hire a contractor who works with certified abatement professionals.
- Plan for additional time and budget if remediation is required.
Surprise #7 — Adjustments to the Original Scope
Once walls are opened and new spaces take shape, homeowners often decide to add or change features. Sometimes this is driven by design, sometimes by necessity.
Typical additions include:
- Adding recessed lighting
- Expanding a layout
- Upgrading flooring throughout
- Replacing aging fixtures instead of patching
How to Prepare
- Discuss possible scope changes early.
- Stay in close communication with your contractor.
- Keep a modest budget cushion for “nice-to-have” upgrades.
How Your Contractor Helps Prevent (and Manage) Surprises
A strong pre-construction process reduces uncertainty dramatically. Your contractor should:
- Conduct thorough inspections
- Coordinate with engineers and specialists
- Communicate clearly about potential risks
- Build contingencies into your proposal
- Keep you updated as the project progresses
When surprises arise, the right team handles them quickly, safely, and with minimal stress for the homeowner.
What This Means for Your Project
Surprises are a normal part of any renovation (especially on Long Island) but they don’t need to derail your project. With planning, transparency, and the right contractor, you’ll navigate them smoothly and keep your renovation on track.
If you’re planning a renovation and want a team who can help you avoid surprises and keep your project running smoothly, we’re here to help. Fill out our contact form to get started.
