GCS Roofing & Exteriors DBA Greiman Construction Services LC

A selection supplied by Google, ordered by relevance. Reviews containing contact details or unsupported credential claims are omitted.

• 5 ★ · brian skoog · Sep 2025

  Greiman Construction is a fantastic company to work with. A complete professional company that I would recommend to all of my friends and family that exceeded all of my expectations. Greiman Construction helped me with my roofing and siding every step of the way. They also found storm damage to my windows. The work was clean, timely, and professional.

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• 1 ★ · Heidi Thoe · Jun 2026

  Took my mom several years to get her roof replaced after hail damage. Had hard time reaching by phone or in person.

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• 5 ★ · John Barlow · Aug 2018

  This was my first time working with this company. I needed to have a roof replaced on my house. All aspects of the job went well with informative, punctual communication through all phases from the quote through completion of the work. The scheduled day of the job went very smooth. The guys had the roof replaced within one day. The cleanup of the property was thorough. I would definitely go with these guys again.

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• 5 ★ · Robert Ciepiela · Oct 2021

  I've worked with Greiman Construction on multiple projects. Over time I've realized how much focus Matt and his team put in to offering a great customer experience through integrity, ethics and having a solid reputation. I would recommend Greiman Construction to all my friends and family in Iowa.

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• 1 ★ · Power Trippers Travel · Aug 2022

  Due to storm damage in 2018, the roof on our house and the rubber roof on our garage had to be replaced. The work they did on the house was fine, though they very carelessly damaged the glass on our brand new living room picture window. It took numerous phone calls to get them to replace the glass they damaged. Far worse, they completely botched the rubber garage roof. It was clear to anyone that it was done improperly. You certainly didn’t have to be a roofer to see that. It was a total mess and was pretty embarrassing to have our roof look that bad. After numerous phone calls, they finally came back, took one look at it and acknowledged it was done improperly and would have to be done again. in 2019, after many more phone calls they finally came back to re-do it and again did it totally improperly. We tried getting them to come back out and were eventually told that due to Covid, they couldn’t get the supplies and would let us know when the materials were available. We never heard back, so in 2021 we began calling them again. We’ve been calling them again for over year and they still haven’t returned to fix this. We can’t get hold of anyone other than the receptionist who tells us she’s leaving messages, but none of our messages are ever returned. The “boss” never answers his phone and his voicemail box is full. We’ve filled out all the paperwork for a civil lawsuit and will be filing the paperwork this coming week. We would certainly never use Greiman Construction again and have warned our friends and family as well. We tried everything to deal with this civilly but are tired of being ignored.

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