Air Conditioning Service

AC & Mini-Split Service

RK Heating, Plumbing, Cooling installs and services residential mini-splits and commercial rooftop AC units across Central and Western Maine, and we've been doing HVAC work in Farmington and the surrounding region since 1988.

Systems We Install

Residential Mini-Splits

Ductless Mini-Splits for Maine Homes

We install and service ductless mini-splits for homes across Farmington, Wilton, and the surrounding towns. These systems don't need existing ductwork, which makes them a solid fit for older Maine farmhouses and homes that were never built to run central air. Each head handles its own room, so you get efficient, targeted cooling through the hottest stretches of Maine summer without overworking one big unit.

Hand holding a remote aimed at a wall-mounted air conditioner in a bright room
Gray rooftop HVAC unit with exposed wiring on a snowy flat roof

Commercial Rooftop AC Systems

Rooftop Units for Light Commercial Properties

We also install and maintain rooftop AC units for small businesses and light commercial properties along the Farmington and Paris corridor. That covers routine seasonal service as well as breakdown repair when a unit stops cooling during business hours. We show up, diagnose the problem, and get your building comfortable again.

Availability

Same-week AC and mini-split appointments available for most of Central and Western Maine.

Why RK

Local Experience Keeping Maine Homes Cool

RK Heating, Plumbing, Cooling has served Central and Western Maine since 1988. A summer cooling call gets the same direct, honest response as a winter heating call. We're not reading from a script; we're the crew that's been doing this work in these towns for close to four decades.

Our technicians are licensed and insured, and RK is an Efficiency Maine Rebates Partner, which can apply to qualifying cooling systems. Contact us for additional information.

Technician testing an HVAC unit with a multimeter and open control panel
Technician installing a wall-mounted air conditioner in a white room

FAQ

Common Questions About AC and Mini-Split Service

  • How do I know if my mini-split needs a repair instead of a recharge?

    Reduced airflow or a unit that runs constantly without cooling usually points to a mechanical or refrigerant issue rather than a simple recharge. A diagnostic visit is the only reliable way to tell which repair actually fixes the problem instead of masking it for a few weeks.

  • Can a ductless mini-split really cool an older Maine home without ductwork?

    Yes. Mini-splits are built for homes without existing ducts, mounting directly on walls or ceilings. That makes them a practical retrofit for farmhouses and older New England homes across Central and Western Maine that were never designed for central air.

  • How often should a commercial rooftop AC unit be serviced?

    We recommend annual maintenance before peak season. Light commercial rooftop units run harder than residential systems, and a spring checkup catches worn parts and weak refrigerant charge before they turn into a summer breakdown.

  • What should I do if my AC stops cooling in the middle of a heat wave?

    Call RK Heating, Plumbing, Cooling right away. While you wait, check that the outdoor unit isn't blocked by debris, and avoid running the system continuously, since that can add strain and make the eventual repair more involved.

Get Started

Schedule Your AC or Mini-Split Service Today

A struggling AC unit or a mini-split that won't keep up shouldn't wait until the middle of a heat wave. Let RK Heating, Plumbing, Cooling take a look and get your cooling running right before the next hot stretch hits.