Mills Northwest Heating & Cooling Inc

Is this your business?
Manage your details and start getting customer inquiries. Takes about a minute by phone.
Claim Your Free PageClaiming is free. Featured placement is optional, $99/mo.
About Mills Northwest Heating & Cooling Inc
Mills Northwest Heating & Cooling Inc operates as an HVAC contractor in Chehalis, Washington, earning a 4.4-star rating across 27 customer reviews. The business maintains standard weekday hours from 8 AM to 4 PM, closed on weekends, and serves residential clients throughout Lewis County including Chehalis, Centralia, and Morton. Potential customers can reach the office at (360) 748-7961 during posted business hours.
Reviewers highlight several distinguishing characteristics of this contractor. Multiple clients specifically praised the company's responsiveness, with one reviewer noting a bid arrived within 30 minutes of initial contact while another received an inspection visit the day after calling. The team appears to prioritize urgent situations, as one reviewer described a scenario where a technician drove to a shipping port to retrieve a heat pump unit, ensuring installation could be completed before a weekend. Pricing feedback from reviewers characterizes costs as fair and affordable, though one reviewer did express frustration with scheduling consistency.
Customer stories from reviews reveal specific service scenarios. One reviewer engaged Mills after her 87-year-old grandfather's heat pump failed during an early summer heat wave, describing the technician's effort to source and install a replacement quickly. Another client managing a foreclosure property in Morton received prompt diagnostic service and repair. A third reviewer, managing an Airbnb rental in Centralia, noted the company was the only contractor among eight contacted who answered and followed through with next-day inspection and subsequent installation.
What Customers Say
Three of four detailed reviews award 5 stars, praising same-day responsiveness, fair pricing, and completed installations. The single 1-star review cites a failed appointment where scheduled service did not occur, describing communication lapses around rescheduling.
Working Hours
| Sunday | Closed |
| Monday | 8 AM–4 PM |
| Tuesday | 8 AM–4 PM |
| Wednesday | 8 AM–4 PM |
| Thursday | 8 AM–4 PM |
| Friday | 8 AM–4 PM |
| SaturdayToday | Closed |
Services
Heat Pump Repair & Installation
Replacement and new installation of heat pump systems, with one review describing urgent summer installation for residential home.
HVAC System Installation
Full heating and cooling system installation for residential properties, including new construction and retrofit projects.
HVAC Repair & Diagnostics
Troubleshooting and repair services for non-functional heating and cooling systems, with rapid diagnostic turnaround.
System Maintenance & Service
Annual maintenance and service contracts, with one reviewer purchasing multi-year service agreements.
Emergency Repair Response
Priority response for system failures, with reviewers noting same-day service availability for urgent situations.