Alexander Exteriors
Roofing
Serving Buffalo, MN
From Google Business Profile
4.8
84 Google reviews
Hours
| Monday | 8 AM–6 PM |
| Tuesday | 8 AM–6 PM |
| Wednesday | 8 AM–12 AM |
| Thursday | 12–6 AM, 8 AM–12 AM |
| Friday | 12–6 AM, 8 AM–12 AM |
| Saturday | 12–6 AM |
| Sunday | Closed |
Google categories: Window installation service, Deck builder, Roofing contractor, Siding contractor
View on Google Maps →Last checked October 13, 2026.
More from Google Business Profile
Listed features
- Accessibility
- Wheelchair accessible entrance
- Wheelchair accessible parking lot
Photos on Google: 62
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 · Mar 2026
Upon moving into our home, we had many birds and critters living in our old cedar siding. Other quotes were hesitant or wanting us to do tear down. Brian and Asa didn't blink when they showed up ready to help. From day 1, any little thing…
5 out of 5 stars · Oct 2025 · Owner replied
Alexander Exteriors surpassed my expectations and needs. Upon meeting Asa Grimm, the sales professional, Asa was honest and upfront. Asa never forced the sale of a deck replacement. His honesty sold me. I thought if he is honest, the…
5 out of 5 stars · Aug 2025 · Owner replied
Asa was amazing! he was able to complete a critical-path inspection and evaluation of our home for our real-estate transaction. Mitigation was complete ON TIME and within budget to ensure conditions of the Purchase agreement were met. Asa…
The owner replied to 4 of the 5 most recent reviews Google showed.
From Google Business Profile, last checked October 13, 2026.
About roofing contractors in Buffalo
Roofers repair, replace and inspect residential roofs, from asphalt shingles to metal and low-slope systems. Roofing contractors tear off and replace worn roofs, fix leaks, replace flashing and vents, repair hail and wind damage, and help homeowners document storm claims with insurers. Many also install ice-and-water shield, ridge ventilation and gutters as part of a full re-roof.
Typical cost: $8,500–$24,000 for a typical asphalt shingle replacement. 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
- Verify registration and insurance: Ask for a certificate of liability and workers comp insurance naming you as holder.
- Get three written bids: Compare the same shingle line, underlayment and ventilation plan on each.
- Ask about manufacturer certification: Certified installers can offer extended system warranties.