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Claim This BusinessMountain Valley Heating & A/C has served Renton-area homeowners since 1992, operating under Washington state contractor license MVVANH*971R4. The company holds a 4.9-star average across 165 verified client reviews, placing it among the most recommended contractors in south King County. Their service area covers Renton, Kent, Federal Way, and surrounding neighborhoods, where they handle both routine maintenance and emergency heating repairs.
This contractor distinguishes itself through specialized experience with challenginginstallation scenarios, including log home constructions that require creative line routing and custom ductwork solutions. They install major residential brands including Lennox, American Standard, and Mitsubishi systems, with particular expertise in variable-speed heat pump configurations. Several reviewers noted the team's willingness to accommodate mid-project changes while maintaining project timelines and quality standards.
Customer reviews consistently praise specific team members. Carol Maxwell's February furnace emergency resulted in same-day installation after the team adjusted their schedule. Josh Lange noted project manager Jim provided detailed cost breakdowns across six vendor comparisons before his family selected Mountain Valley. Anand Namasivayam credited technician James with innovative solutions for his log home's 30,000 BTU mini-split installation, including post-project follow-up on smart thermostat app setup.
165 reviews produce a 4.9-star average, with every reviewer rating 5 stars. Four reviewers specifically mention responding to urgent situations including February heating failures and mid-project scope changes. Three clients highlight the team accommodating location changes or timeline adjustments during active projects.
| Sunday | Closed |
| Monday | 8 AM–5 PM |
| Tuesday | 8 AM–5 PM |
| Wednesday | 8 AM–5 PM |
| ThursdayToday | 8 AM–5 PM |
| Friday | 8 AM–5 PM |
| Saturday | Closed |
Complete furnace installation including new unit setup, permitting, and post-install inspection clearance.
Variable-speed heat pump systems for year-round heating and cooling, including mini-split configurations.
Multi-head mini-split installations with outdoor units ranging to 30,000 BTU capacity for zoned climate control.
Seasonal maintenance visits to maintain system efficiency and extend equipment lifespan.
UV air scrubber and filtration system installations for improved residential air quality.
Urgent repair services for heating system failures, with documented same-day response capabilities.