Don Thornberg Building Corp
Decks, doors, windows and exterior painting from a family-owned firm on Fire Island and in Saltaire.
What we checked
- Business phone works
- Website is live
- Website confirms roofing and siding
About
Don Thornberg Building Corp is a family-owned roofing and siding company in Syosset, New York. It repairs roofs, installs siding and puts in windows and doors for homeowners. It works in Brightwaters, Fire Island and Saltaire.
- Family owned
- Residential
Services
Roofing
- Roof repair
Siding
- Siding installation
Other exterior work
- Window installation
- Door installation
- Exterior painting
- Decks and patio covers
- Pressure washing
- Remodeling
Service area
Don Thornberg Building Corp names 3 cities on its website. The farthest is Saltaire, 21 miles away.
- Brightwaters 15 mi
- Fire Island 20 mi
- Saltaire 21 mi
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At a glance
- Based in
- Syosset, NY
- Trades
- Roofing and siding
- Services listed
- 8
- Service area
- 3 cities, up to 21 miles away
- Phone
- (631) 786-3689
Before you hire Don Thornberg Building Corp
- Insurance. The website does not mention insurance. Ask for a certificate of insurance, then call the insurer to confirm it.
- Written estimate. The website does not say if estimates are free. Get the price, the materials and the dates in writing.
- Warranty. The website does not mention a warranty on the firm’s work. Ask if the firm gives one, and get it in writing.
Guide: check a roofer’s insurance and licenseGuide: repair or replace?
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