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About Cornerstone Building Maintenance
Cornerstone Building Maintenance is listed on AssistAnt for cleaning (home, office, carpet, pressure washing) in Portland, OR.
Built from public business information. The business hasn’t added its own details yet, so call to confirm before you go.
Contact
- Phone
- (971) 205-2210
- Location
- Portland, OR, 97227 (service area)
- Booking
- Not bookable online yet. Call the business directly.
Customer reviews
No reviews yet. Hired Cornerstone Building Maintenance? Two quick questions, no account.
Leave a reviewQuick facts about Cornerstone Building Maintenance
- What is the phone number for Cornerstone Building Maintenance?
- (971) 205-2210. You call Cornerstone Building Maintenance directly; AssistAnt never sits in the middle.
- Where is Cornerstone Building Maintenance?
- Cornerstone Building Maintenance serves Portland, OR as a service-area business (no street address shown).
- Is Cornerstone Building Maintenance still in business?
- Listed from public business records, last updated October 13, 2026. Call to confirm.
- Is Cornerstone Building Maintenance licensed and insured?
- Not verified by AssistAnt yet. Ask for proof of license and insurance before you hire.
- What do customers say about Cornerstone Building Maintenance?
- No reviews on AssistAnt yet. Hired Cornerstone Building Maintenance? Leave the first one: two questions, no account.
- Who else is near Portland?
- AssistAnt lists 372 cleaning companies near Portland. Closest to Cornerstone Building Maintenance: Cleansolution Services (0.4 mi), All City Window Cleaning (0.5 mi), A-1 Oregon Carpet Cleaning (0.8 mi).
Other cleaning companies nearby
- Cleansolution ServicesPortland, OR · 0.4 mi
- All City Window CleaningPortland, OR · 0.5 mi
- A-1 Oregon Carpet CleaningPortland, OR · 0.8 mi
- DomesticaPortland, OR · 0.9 mi
- JCW CleaningPortland, OR · 0.9 mi
- NW Maids House Cleaning Service of PortlandPortland, OR · 0.9 mi
For the owner of Cornerstone Building Maintenance badge, free AI check, optional tools
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Does ChatGPT recommend Cornerstone Building Maintenance?
Free for claimed listings: we ask ChatGPT and Claude who they’d recommend in your town, and show whether you’re named and what to fix.
Optional tools, if you ever want them
- 📞 A business number, $5 a month. It rings your cell, so your personal number stays private. Calls are 5¢ a minute.
- 🐜 Ann answers the calls you miss and books the job: 25¢ a minute, only when she answers. Or $50 a week for 400 minutes.
- 🧰 The full office (scheduling, invoicing, tech pay, review requests): $49 a month launch price through Dec 31, every tech included.
All optional. Your listing and website stay free either way, and none of this changes where you rank. The number and Ann are set up from your page after you claim it. About the full office →