Gannaway Construction
236118 - Residential Remodelers
Serving GILMAN, IA
From Google Business Profile
4.8
32 Google reviews
Google categories: General contractor, Construction company, Deck builder, Service establishment, Gutter service, Roofing contractor, Siding contractor, Window installation service
View on Google Maps →Last checked October 3, 2026.
More from Google Business Profile
Photos on Google: 179
Recent Google reviews (excerpts)
Written by Google users, not by EdgeLocal. EdgeLocal has not verified them and does not show reviewer names.
5 out of 5 stars · Aug 2026 · Owner replied
Matt (and his team) has been a SAINT throughout my homeowners insurance claim!! He was there to fight right beside me with any insurance issues, was quick to get started on repairs to prevent further damage, had prompt communication with…
5 out of 5 stars · Jul 2026 · Owner replied
Very professional company from start to finish, from the blue prints/planning to the final amazing results. The wrap around deck came out perfectly, no details were left unattended
5 out of 5 stars · Jun 2026 · Owner replied
Reroofed our church in Stste Center, Very timely, cleaned up as they worked and finished roof looks great! 3 days and they were done. Highly recommend, a pleasure to work with.
The owner replied to 8 of the 8 most recent reviews Google showed.
From Google Business Profile, last checked October 3, 2026.
About this business
Gannaway Construction is the leading general construction company serving Marshalltown, Grinnell, Brooklyn, Newton, Grundy Center, Tama, State Center & surrounding communities. We specialize in whole home renovations, roofing, siding, sheds and so much more.
Services
- whole home renovations
- roofing
- siding
- sheds
- Decks
Service area: Marshalltown, Grinnell, Brooklyn, Newton, Grundy Center, Tama, State Center
- Licensing
- Licensed
- Insurance
- Insured
Brands and certifications: GAF Certified Contractor, Alliance Window Systems, Tillcor Roofing, Fibron Decking, GAF Master Elite Certification
Elsewhere online: Facebook · Yelp · Instagram
Source: the business's own website and its Google Business Profile description, read automatically on October 14, 2026. Not verified by EdgeLocal.
Iowa Contractor Registration
- Reg. #
- C140299
- Expires
- February 16, 2027
Source: Iowa Division of Labor contractor registration data, licensed under CC BY 4.0. Look up this registration
About remodelers in GILMAN
Remodelers renovate existing homes — kitchens, baths, basements, additions and whole-house updates. Remodeling contractors redesign and rebuild living spaces: finishing basements, opening walls, updating kitchens and bathrooms, adding rooms and improving layout and accessibility, while coordinating permits and trades.
Typical cost: $15,000–$85,000 for typical room or basement remodels. See the full cost guide
Typical U.S. ranges from industry sources (2024–25); not EdgeLocal data. Your quote will vary with scope, materials and location.
Questions to ask this contractor
- Define your goals and budget: A clear wish list and budget range makes bids comparable.
- Check portfolios and references: Look for completed projects similar to yours.
- Ask about design help: Decide whether you need a designer or a design-build remodeler.