“After another company gave up on my mini split ac maintenance, I called MJM HVAC. They figured it out near St. Helens, and I couldn't be happier!”
Carlos V.St. Helens
VerifiedReliable replace ductless circuit board in Columbia City, carried out by licensed local crews who understand Columbia County. Given the marine / oceanic of the area, we ensure your ductless system functions optimally. Our team provides a flat-rate quote prior to work commencing, guaranteeing transparency and satisfaction.
Licensed · Upfront options · Clean work areas · Written guarantees
These are our most frequently served ZIP codes. Nearby areas may also qualify—call if you do not see yours.
St. Helens · Deer Island · Warren · Scappoose · Prescott · Rainier · Vernonia · North Plains · Bethany · Clatskanie · Rockcreek · Banks
St. Helens · Deer Island · Warren · Scappoose · Prescott · All Oregon cities
“After another company gave up on my mini split ac maintenance, I called MJM HVAC. They figured it out near St. Helens, and I couldn't be happier!”
Carlos V.St. Helens
Verified“Scheduling air quality solutions was easy, and they arrived on time in Columbia County. The work they did has improved my home's air quality significantly.”
Hannah F.Deer Island
Verified“I received an honest quote for a ductless mini split systems installation with no upsells or surprise fees in Columbia City. Truly appreciated their transparency!”
Andre W.Columbia City
VerifiedA real dispatcher is available if your question is not answered here.
Call 8334920770 →Most Columbia City calls are scheduled the same day, with 24/7 emergency response across Columbia County.
We quote a flat rate up front - typically in the range shown below - and you approve it before we begin.
Call now for fast, licensed Mini Split AC Repair anywhere in Columbia City and Columbia County.