Mandia & Sons Construction
About Mandia & Sons Construction
Mandia & Sons Construction is a roofing contractor serving LaGrangeville, NY and the surrounding area. Many homes in LaGrangeville were built around 1985 and commonly need 1980s-90s construction with aging roofing and siding needing replacement. Contact them directly for a free estimate on your roofing project.
Listing last verified March 2026. Information sourced from public records and Google Business data.
Roofing Services
roofing services offered in LaGrangeville:
- Roofing Contractor
- Bathroom Remodeler
- Contractor
- Flooring Contractor
- Kitchen Remodeler
- Painter
- Pressure Washing Service
- General Contractor
Roofing in LaGrangeville — FAQ
How much does a roof replacement cost in LaGrangeville?
Roof replacement in LaGrangeville typically costs $7-$12.5 per sq ft, with an average project around $11,000. Dutchess County roofing costs split between Poughkeepsie and Beacon's urban rates and more affordable rural towns to the east. Wind exposure on ridgeline properties in the Hudson Highlands adds to material needs.
What roof problems are common in LaGrangeville?
LaGrangeville homes face specific roofing challenges. 1980s-90s construction with aging roofing and siding needing replacement. The area's Colonial and Split-Level homes each have distinct roof profiles that affect repair approach and cost. A local roofer familiar with LaGrangeville's housing stock can spot these issues during a free inspection.
Do roofers in LaGrangeville need to be licensed?
Yes, roofing contractors in LaGrangeville and Dutchess County must hold a New York State Home Improvement Contractor (HIC) registration through the NY Department of State. Most roofing work in LaGrangeville also requires a building permit from the Town of LaGrange Building Department ((845) 452-1972). Always verify a roofer's license and insurance before hiring.
Before Hiring a Roofing Pro in LaGrangeville
Use this checklist to vet contractors before signing a contract.
Ask about manufacturer certifications (GAF, CertainTeed, Owens Corning)
Certified installers offer extended manufacturer warranties — often 25-50 years — that non-certified roofers cannot provide.
Request a written scope that specifies underlayment, ice-and-water shield, and flashing details
Northeast freeze-thaw cycles demand proper ice-and-water shield at eaves, valleys, and penetrations. Cheap jobs skip this.
Confirm they carry roofing-specific liability insurance (not just general liability)
Roof work is classified as high-risk. Some general policies exclude it. Ask for a certificate naming you as additionally insured.
Verify they will pull the building permit and schedule the inspection
Roof replacements require permits in virtually every municipality. An unpermitted roof can cause problems when you sell.
Verify Home Improvement Contractor license with your municipality
New York counties require Home Improvement Contractor registration. Check with your local clerk's office or building department.
Confirm general liability insurance and workers' compensation coverage
Ask for a certificate of insurance (COI) naming you as additionally insured. Workers' comp protects you if a worker is injured on your property.
Get 2-3 written estimates that itemize labor, materials, and timeline
Lump-sum quotes hide details. Itemized estimates let you compare apples to apples and catch hidden costs.
Check permit requirements with Town of LaGrange Building Department ((845) 452-1972)
Located at 120 Stringham Road. Standard suburban residential codes. Online permit applications available.
Ask for 3 recent local references and actually call them
Ask references specifically: Did the job finish on time and on budget? Were there surprises? Would you hire them again?
Verify contractor credentials: NY Division of Licensing Services
Best Time to Hire a Roofing Pro in New York
Seasonal timing guide for the Northeast (CT/NY metro area).
Schedule a post-winter inspection to catch ice dam damage and lifted shingles. Book replacements now — roofers fill their summer calendars by mid-April.
Peak season with the longest wait times (3-6 weeks). Best conditions for shingle adhesion above 70°F. Expect premium pricing and limited availability.
Last window before winter. Prioritize any repairs before the first freeze. Shingles need 40°F+ to seal properly. October is the cutoff for most full replacements.
Emergency repairs only at premium rates. Shingles cannot properly seal below 40°F. Use this time to get quotes and schedule your spring project.
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