We fix what's broken, fast, and we don't disappear after the invoice. Emergency dispatch available across Merton and the surrounding zip codes.
Our Merton dispatcher asks a few quick questions to gauge urgency and get you the fastest available window.
You'll get a flat-rate quote before any repair work begins — no guessing what the final bill will look like.
Warranty details are explained clearly so you know exactly what's covered going forward.
Leonard HVAC grew one honest service call at a time in communities like Merton. Every technician we send to your door is background-checked, factory-trained, and licensed to work on the systems installed throughout Merton, WI.
We're not the biggest name in Merton — we're the company that tells you what actually needs fixing instead of what pads the ticket. Licensing and insurance aren't optional line items for us, and we keep that documentation available on request for every job, residential or commercial.
Merton's climate swings hard, and generic national playbooks don't always fit. That local knowledge shapes the maintenance schedules we recommend — it's the difference between a tech who's guessing and a tech who's seen your exact situation a hundred times before.
Too many homeowners in Merton have a story about a tech who showed up late, quoted one price, and charged another. That's the gap we built Leonard HVAC to close. Every dispatcher, every technician, and every follow-up call is held to the same standard, because a customer who trusts us once tends to call us again — and Merton is a small enough community that reputation travels fast.
When you call +1-866-805-8548, you're talking to someone who understands the local permitting process, the common equipment brands installed in Merton homes, and realistic scheduling given local demand. Our warranty and service history records stay attached to your address, so any future technician who visits already has the full picture.
Every service below is backed by the same licensing, warranty, and upfront pricing you get on any job we run.
Breakdowns rarely happen at a convenient time, which is exactly why our emergency line runs 24 hours a day. Our Merton dispatch team prioritizes no-heat and no-cooling calls so a technician is diagnosing your system as fast as physically possible.
We keep the truck stocked with the parts that fail most often on the equipment common to Merton homes, which is exactly why most repairs don't require a return visit.
If your unit is past its expected service life, running loud, or spiking your utility bill, a replacement conversation is worth having. We walk Merton homeowners through efficiency ratings and how they translate into real monthly savings before a single piece of equipment gets ordered.
We protect floors and entryways during the install and haul away the old equipment so you're not left dealing with disposal.
A retail floor, a restaurant kitchen, or an office suite can't run without stable climate control. Our commercial division services rooftop units and package systems across Merton, with priority response for facilities that can't afford downtime.
Property managers working with multiple Merton locations can set up a standing account so every site gets consistent service history and pricing.
Preventive maintenance is the cheapest repair you'll ever pay for, because it's the one that prevents the bigger bill. Beyond standard tune-ups, we also handle duct cleaning and sealing to stop conditioned air from leaking into attics and crawlspaces for Merton households that want more than just temperature control.
We'll show you photos of anything concerning we find, along with a plain-language explanation of what it means and whether it's urgent.
Guarantees only mean something if a company actually honors them, so here's exactly what ours covers.
If the same issue returns within the warranty period, we come back and fix it at no additional labor cost.
If a competitor's written quote for the same scope of work is genuinely lower, ask us about it.
Our office follows up after major repairs and installs to confirm everything is holding.
Most breakdowns don't happen without warning — they announce themselves for weeks before the system actually quits.
A healthy system runs with a consistent, low hum — banging, screeching, or grinding usually points to a loose part or failing motor.
If some rooms stay hot or cold no matter what the thermostat says, the system may be struggling to distribute air evenly.
Gradual efficiency loss is easy to miss month to month, but it adds up fast over a season.
Short cycling puts extra wear on the compressor and shortens the system's overall lifespan.
Chemical odors may signal a refrigerant leak, which requires a licensed technician to handle safely.
If you're calling about the same problem every few months, the underlying cause likely hasn't been fully addressed.
No inflated "emergency surcharge" games — the number we quote is the number you pay.
Emergency calls get moved to the front of the line automatically.
We don't consider a job finished until the system is actually performing correctly.
Every technician carries current state licensing and manufacturer training.
We explain what failed, why it failed, and what the options are.
Maintenance plan members get priority scheduling and discounted rates.
Every review below reflects an actual service call in the Merton area.
"I called three other companies first and this was the only one that actually picked up. The pricing was exactly what they quoted over the phone."
"Scheduled a fall tune-up and they caught a cracked part before it became a real problem. Never once felt like I was being upsold on something I didn't need."
"They handled the whole install in a single day, exactly like they said they would. Would recommend to anyone in Merton needing a real replacement, not a patch job."
"Our restaurant's rooftop unit went down on a Friday night and they had someone out fast. Kept our kitchen running through the weekend rush."
"I appreciated that they didn't try to sell me a bigger unit than I needed. Installation crew was in and out in a day and left the space cleaner than they found it."
"Called at 11pm during a heat wave and honestly didn't expect anyone to pick up, let alone show up. This is the company I'm saving in my phone now."
Understanding what typically fails helps homeowners know what to watch for and when a repair call is worth making before things get worse.
Homeowners who schedule a tune-up ahead of each season tend to call us far less often for emergency repairs. Before the heaviest cooling months hit, it's worth having the refrigerant charge checked, the condenser coils cleaned, and the filter replaced — all of which directly affect how hard the compressor has to work.
Simple habits between professional visits also matter. None of this replaces a professional tune-up, but it does reduce the wear that leads to premature breakdowns between visits.
Whether your Merton home has a traditional split system, a ductless mini-split, a heat pump, or a hybrid dual-fuel setup, our crews are equipped to diagnose and repair it. If your system was installed by a different company entirely, that's not a problem — we service equipment regardless of who originally put it in, and we'll pull the model and serial information to confirm parts compatibility before any repair begins.
Every tech on our Merton roster goes through background checks, licensing verification, and ongoing manufacturer training.
Handles the majority of Merton installs and specializes in properly sizing equipment for older housing stock.
Keeps the emergency truck stocked based on what actually fails most often locally.
Focuses on commercial rooftop units, multi-zone systems, and facility maintenance contracts.
Standard appointments are usually scheduled within 24-48 hours, while true emergencies jump the queue.
Our policy is simple: you approve the number before we touch the system.
Yes, no-heat and no-cool situations are treated as priority calls regardless of the hour.
We maintain current credentials because it protects both our customers and our team.
We never push a replacement when a straightforward repair will genuinely solve the problem.
Yes, our maintenance plans include seasonal tune-ups, priority scheduling, and discounted repair rates for members.
Our dispatch area extends throughout the greater Merton region and nearby towns within Merton, WI.
Our commercial team handles rooftop units, multi-zone systems, and facility contracts alongside our standard residential repair work.
If parts require special ordering for a less common brand, we'll communicate that timeline upfront.
Financing options are available for qualifying replacement installations, and our team can walk you through what's currently offered.
Twice-yearly maintenance is the standard we recommend given the temperature swings the area sees.
Check that the thermostat has power and the batteries aren't dead, and check your breaker panel for a tripped switch before calling.
We'd rather quote it honestly on the phone than have you feel ambushed by the bill.
Most standard repairs are completed in under two hours once the technician has diagnosed the issue and you've approved the quote.
For commercial accounts or rental properties, a designated point of contact or property manager can coordinate access instead.
From the older, established streets near the center of Merton to the newer developments on the outskirts, our trucks cover the full footprint of the city.
If you manage several units or a shared system across a Merton property, ask about setting up a standing service account so every request gets handled under one consistent agreement.
We accept standard payment methods for repairs and smaller jobs, and we'll always tell you upfront what a given service is likely to cost so there's no last-minute scramble to figure out payment. If a rebate or local incentive program applies to your Merton installation, our technicians will flag it during the estimate rather than leaving you to track it down after the fact.
Coverage extends across Merton proper and into the nearby zip codes listed below.
If you're on the edge of our listed zip codes, it's still worth a call, since routes and coverage get adjusted as demand shifts.
