Mini-split filter care
The cheapest efficiency upgrade is a vacuum on the head every month.
A clogged cassette in an Oakland loft looks like a “failed system.” It is often a gray filter nobody has seen in a year.
A mini-split is the honest answer when ducts cannot reach an addition, ADU, or garage conversion cleanly.
Use this as a field guide to mini split filter cleaning, then book a visit if the house still misbehaves.
We size the head to the room, check outdoor clearance and electrical, and estimate in-home for free. One oversized head short-cycles just like a bad central unit.
We map mini split filter cleaning to the actual failed part or design limit. Age of the system is a data point, not the diagnosis.
You approve any repair after the findings are written down. Diagnostic visits are a flat $69. New installation estimates are free in-home with a load calculation — not a number invented from square footage on Zillow.
Extending leaky ducts 40 feet through an attic is often worse comfort per dollar than a ductless head.
A company that skips testing on mini split filter cleaning will skip it on the next call too. We would rather lose a job than install the wrong thing.
Related service page on this site: maintenance. The article you are reading is the explanation; that page is how to book the work.
OTTER HVAC is based at 2939 Santos Ln, Walnut Creek. Walnut Creek, Clayton, and Berkeley are regular routes, along with the rest of our listed East Bay cities. Hours are 7am–5pm, seven days a week. We do not advertise 24/7 because we do not staff a night shift.
Inland heat (Pleasanton, Livermore, Concord) and marine air (Alameda, Daly City) are different loads. A note written for Walnut Creek is not automatically right for a fog-belt house. We treat them that way.
Category on this guide: Maintenance. Primary search phrase: mini split filter cleaning.
Call (650) 900-0440 or book online. Tell us the city, the symptom in one sentence, and the brand if you know it. If we have a window today, we will say so. If we do not, we will say that too.
Technicians are EPA 608, OSHA, and NATE certified. Public reviews average 5.0 stars across roughly 146 Google and 151 Yelp reviews. That does not replace a test on your unit.
Related service: HVAC Maintenance. Book a $69 diagnostic or a free install estimate. Hours: 7:00am–5:00pm, seven days a week. Shop: 2939 Santos Ln, Walnut Creek, CA 94597.
Related: All HVAC guides · HVAC Maintenance · Pricing and $69 diagnostic · Contact OTTER HVAC
Frequently asked questions
What do you test on a mini split filter cleaning visit?
We size the head to the room, check outdoor clearance and electrical, and estimate in-home for free. One oversized head short-cycles just like a bad central unit. The visit is a flat $69. Repair work starts only after you approve the written findings.
Will you quote mini split filter cleaning from a photo?
No. We do not price mini split filter cleaning from a driveway photo. $69 diagnostic, then a quote — or a free in-home install estimate if replacement is the honest path.
Do you handle this in Walnut Creek and Clayton?
Yes. We run Walnut Creek, Clayton, and the rest of our East Bay list from 2939 Santos Ln, Walnut Creek. Hours are 7am–5pm every day — not 24/7. Call (650) 900-0440.
Explore related pages
References and credentials
- U.S. DOE Energy Saver
- EPA Section 608
- EPA Section 608 refrigerant certification
- U.S. Department of Energy — Energy Saver
Authority sources: U.S. DOE Energy Saver · EPA Section 608