Your general contractor just wrapped the project—the new kitchen extension looks great, the bedroom addition is framed, or the foundation repair is sealed up. But construction doesn't end when the crew leaves the site. Proper maintenance during the months and years after contracting work protects your investment and prevents small issues from becoming expensive problems.
Inspect Your Work Before Final Sign-Off
Before you sign off on the project, walk through with your contractor and document the current state. Take photos of newly completed walls, floors, roof lines, and any visible joints or seams. Ask the contractor to point out areas that need curing time, settling, or seasonal adjustments—this baseline makes it easier to spot legitimate defects versus normal movement later on.
Request written documentation of materials used, especially for structural work, roofing, or siding. You'll need this for warranty claims and future inspections. Most reputable contractors provide a one-year workmanship warranty; some offer longer coverage on specific items like roofing (typically 5-10 years).
Monitor New Additions for the First Year
New construction and major additions go through seasonal stress cycles. Temperature swings, moisture changes, and settling can cause minor cracks in drywall, small gaps where new walls meet old framing, or slight shifts in door and window alignment.
Common first-year issues to expect:
- Hairline cracks in drywall joints (normal; may need light spackling)
- Gaps at the junction between old and new framing (can be caulked once settled)
- Slight settling of new lumber or concrete (watch for progressive movement; isolated changes are usually fine)
- Minor shrinkage in newly painted trim
- Soft spots or squeaks in new flooring as subfloors acclimate to humidity levels
Document any changes monthly, especially from season to season. If cracks are widening noticeably or doors are increasingly difficult to close, contact your contractor—these may indicate structural settling beyond normal tolerance.
Protect Exposed Work from Weather
Fresh exterior work needs protection from the elements during its first few months. New siding, trim, caulking, and sealants require time to cure fully. Rain and direct sun exposure during this window can compromise adhesion and longevity.
Ask your contractor how long to keep new roofing, gutters, or siding dry and out of direct sun if applicable. New concrete foundations and patios typically need 7-14 days before exposure to water. New painted surfaces should cure for 2-3 weeks before washing or heavy moisture contact.
Ensure proper grading and drainage around new additions or foundation work. Water pooling near newly sealed foundations defeats the entire purpose—you may need to adjust landscaping or install temporary drainage during the first rainy season.
Schedule Post-Completion Maintenance Tasks
Different work types require different post-completion care:
For roof work: Inspect gutters and downspouts within a month; clear debris that accumulates where old and new roofing meet. Plan for annual inspections at the change of seasons.
For kitchen or bathroom additions: Check all plumbing connections for leaks after the first week of regular use. Listen for water hammer or unusual sounds in walls—these indicate potential pressure issues.
For structural additions: Monitor corners where new walls meet existing structures. Small cracks are expected, but movement should stabilize within 3-6 months.
For exterior work: Reapply caulk or sealant if visible gaps appear after the first season. This typically costs $100–$300 depending on the project's perimeter.
Keep Detailed Records
Maintain a file with the contractor's invoice, warranty documentation, inspection reports, and photos. Include notes on any maintenance or touch-ups you've done. This record becomes valuable if you sell the home or need to reference what was installed and when.
If you're comparing multiple contractors for future work, reference this documentation. Contractors who built your addition well are often your best choice for complementary projects. If you need to find and compare trusted contractors for additions or maintenance work, Mercoly allows you to source vetted providers in your area and review past projects side by side.
Frequently Asked Questions
Q: How long should I wait before painting over new drywall in an addition? A: Wait at least 24 hours after joint compound dries completely—typically 2-3 days for full cure—before priming or painting to avoid adhesion problems.
Q: What's normal settling in a new second-story addition? A: Minor drywall cracks and ⅛-inch gaps at seams are normal within the first year; anything exceeding ¼ inch or widening over time warrants contractor review.
Q: Should I get a professional inspection of completed general contracting work? A: Yes, a third-party structural or systems inspection within 30 days of completion ($300–$600) catches issues the general contractor's warranty will cover while leverage exists.
Start your comparison of trusted general contractors today to ensure future projects meet the same quality standard.