Licensed & Insured Hvac in Exeter, NH

When Your System Fails, Exeter Calls Leonard HVAC

We fix what's broken, fast, and we don't disappear after the invoice. Same-day appointments available across Exeter and the surrounding zip codes.

✓ Fully Certified Crews
✓ Answered Around The Clock
✓ Flat-Rate Quotes
72°
Set & Ready
Professional Hvac technician working in Exeter, NH
24/7On-Call Techs
60-MinResponse Target in Exeter
5-StarLocal Reputation
100%Licensed & Insured
How It Works

What To Expect When You Call +1-866-805-8548

1. Tell Us What's Happening

No automated menus for emergencies — a real person handles the call.

2. Get A Clear Number Before Anything Starts

You'll get a flat-rate quote before any repair work begins — no guessing what the final bill will look like.

3. Job Finished, Then Checked Again

If anything feels off after we leave, a follow-up call gets a technician back out to make it right.

Who We Are

A Local Hvac Crew Built for Exeter's Climate

Leonard HVAC didn't start as a franchise chasing volume. We invest in ongoing training so our techs recognize a failing capacitor, a cracked heat exchanger, or a refrigerant leak before it turns into an emergency.

We're not the biggest name in Exeter — we're the crew that answers the phone at 2am when your furnace quits in the middle of a cold snap. Licensing and insurance aren't optional line items for us, and we keep that documentation available on request for every job, routine or emergency.

Being local matters more than most companies let on. 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.

Ask around Exeter and you'll hear the same complaint about a lot of HVAC companies. That's the gap we built Leonard HVAC to close. We'd rather lose a job to a lower bid than win one by cutting corners on the diagnosis, because a customer who trusts us once tends to call us again — and Exeter 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 Exeter homes, and realistic scheduling given local demand. We keep parts inventory stocked based on what actually fails most often on Exeter's housing stock.

State-CertifiedVerified credentials on every job
Round-The-Clock DispatchNights, weekends, and holidays included
Upfront PricingDiagnostic fees explained before we touch the system
Local DispatchTrucks stationed close to Exeter, not across the county
What We Handle

Complete Hvac Coverage for Exeter Homes & Businesses

Whether it's a mid-summer breakdown or a planned system replacement, our Exeter techs handle it with the same level of care.

24/7

24/7 Emergency Heating & Cooling Repair

Breakdowns rarely happen at a convenient time, which is exactly why our emergency line runs 24 hours a day. Our Exeter dispatch team prioritizes no-heat and no-cooling calls so a technician is diagnosing your system as fast as physically possible.

  • No-heat and no-cool emergency response
  • Electrical and control board diagnostics
  • Temporary fixes when parts require special order

Once a technician is on-site, the goal is always a same-visit repair — most emergency calls in Exeter get resolved in a single trip, not a multi-day back-and-forth.

24/7 Emergency Hvac experts in Exeter, NH
Residential

Home Heating & Cooling System Upgrades

An aging system that's constantly breaking down usually costs more to keep patching than to replace. We walk Exeter homeowners through financing and rebate options where available before a single piece of equipment gets ordered.

  • Ductless mini-split installation
  • Manual J load calculations, not rough guesses
  • Clean, respectful installation crews

We protect floors and entryways during the install and haul away the old equipment so you're not left dealing with disposal.

Reliable Hvac contractor in Exeter, NH by Leonard HVAC
Facilities

Commercial Hvac Service

A retail floor, a restaurant kitchen, or an office suite can't run without stable climate control. Our commercial division services multi-zone commercial buildouts across Exeter, with after-hours work to avoid disrupting business.

  • Multi-zone building system service
  • Energy efficiency assessments for older buildings
  • Detailed service reporting and documentation

Property managers working with multiple Exeter locations can set up a standing account so every site gets consistent service history and pricing.

Affordable Hvac solutions in Exeter, NH
Specialized

Preventive Maintenance & Specialized Solutions

A seasonal tune-up catches the kind of wear that turns into a mid-summer no-cool call. Beyond standard tune-ups, we also handle indoor air quality upgrades for homes with allergy or asthma concerns for Exeter households that want more than just temperature control.

  • Seasonal tune-ups, spring and fall
  • UV light and filtration system installs
  • Discounted repair rates for plan members

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.

Top rated local Hvac specialists in Exeter, NH
Our Guarantee

What Happens If Something's Not Right

We'd rather set clear expectations upfront than make vague promises we can't back up.

Repairs That Are Guaranteed

If the same issue returns within the warranty period, we come back and fix it at no additional labor cost.

No Inflated Emergency Rates

Emergency dispatch never comes with a hidden surcharge sprung on you after the fact.

Not Finished Until You Say So

Our office follows up after major repairs and installs to confirm everything is holding.

Don't Wait Until It Fails

How To Tell If Your System Is About To Fail

Catching these signs early usually means a same-day repair instead of an emergency call at the worst possible moment.

Unusual Noises

Ignoring new noises is one of the fastest ways to turn a small repair into a major one.

Some Rooms Never Get Comfortable

Weak airflow from the vents often traces back to a clogged filter, a failing blower motor, or leaking ductwork.

Energy Costs Climbing With No Explanation

A system working harder than it should to hit the same temperature shows up directly on your utility bill.

Frequent On-Off Cycling

A system that won't hold a steady cycle is often fighting a sizing issue, a thermostat problem, or a refrigerant imbalance.

Musty, Burning, or Chemical Smells

A burning smell should never be ignored — it can indicate an electrical issue that needs immediate attention.

You've Called For The Same Issue Twice

Repeated repairs on an aging system are usually the clearest sign that replacement will save more money than another patch job.

What Sets Us Apart

The Difference Between A Repair That Sticks And One That Doesn't

Quoted Before We Start

We explain diagnostic fees and repair estimates before authorizing work.

Real-Time Arrival Windows

Emergency calls get moved to the front of the line automatically.

Warrantied Workmanship

Parts and labor are backed by warranty terms explained in plain language.

Trained On The Systems We Install

Every technician carries current state licensing and manufacturer training.

Clear Communication

Photos and plain-language notes accompany every diagnostic.

Financing & Maintenance Plans

We'll walk you through what's actually available before you decide.

Real Customer Feedback

Reviews From Around Exeter

We don't write these — our customers do.

★★★★★

"I called three other companies first and this was the only one that actually picked up. No pressure to buy a whole new system when a repair was all we needed."

Marcus T.
Homeowner in Exeter

★★★★★

"We've used them for our maintenance plan for two years now and never had a surprise breakdown. Techs are always polite, always on time, and clean up after themselves."

Angela M.
Homeowner in Exeter

★★★★★

"Had a full system replacement done and it was the smoothest home project I've had in years. Would recommend to anyone in Exeter needing a real replacement, not a patch job."

Michael D.
Exeter resident

★★★★★

"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."

Exeter Property Group
Commercial client

★★★★★

"The estimate matched the final invoice exactly, down to the dollar. My energy bill dropped noticeably the first month with the new system."

Dennis W.
Exeter, NH

★★★★★

"Called at 11pm during a heat wave and honestly didn't expect anyone to pick up, let alone show up. Genuinely relieved to have found a crew that answers when it matters."

Omar F.
Exeter resident

What Actually Breaks Down

Why Hvac Systems Fail in Exeter Homes

None of these are unusual or embarrassing — they're just the normal wear and tear that comes with running a system through Exeter's seasonal swings.

Dirty or Clogged FiltersWe check this first on nearly every service call
Refrigerant LeaksA system low on refrigerant loses cooling capacity and puts extra strain on the compressor
Motor StrainCapacitors and contactors wear out from routine cycling and are a frequent cause of a system that won't start
Miscalibrated ControlsA thermostat that's lost calibration or has a wiring fault can make an otherwise healthy system seem broken
Local Climate Considerations

Getting Your System Ready For The Season Ahead

The shift between peak heating and peak cooling demand is exactly when older or neglected equipment tends to fail. Filters should be checked monthly during heavy-use seasons and replaced roughly every 60-90 days depending on your household and any pets.

Keeping vents unblocked by furniture and rugs helps maintain even airflow throughout the home. None of this replaces a professional tune-up, but it does reduce the wear that leads to premature breakdowns between visits.

Brands & System Types

Not Limited To One Manufacturer

Whether your Exeter 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.

Who's Coming To Your Door

The Technicians Behind Every Exeter Service Call

Here's a look at the kind of experience that shows up at your door.

Trusted Hvac service in Exeter, NH - Leonard HVAC

Comfort Systems Lead

Manufacturer-certified across multiple major residential equipment lines.

Trusted Hvac service in Exeter, NH - Leonard HVAC

On-Call Repair Specialist

Known for fast, accurate diagnostics on no-heat and no-cool breakdowns.

Trusted Hvac service in Exeter, NH - Leonard HVAC

Facility Service Specialist

Works directly with Exeter property managers to schedule around business hours.

Common Questions

Questions Exeter Customers Ask Us Most

What's your typical response time in Exeter?

For emergency no-heat or no-cool calls, we prioritize dispatch and aim to have a technician on-site the same day, often within a couple of hours.

How does your pricing work?

Yes — every job gets a clear quote before any repair work begins, so there are no surprise line items on the invoice.

Do you offer 24/7 emergency repair?

We staff after-hours dispatch specifically because HVAC failures rarely happen on a convenient schedule.

Is Leonard HVAC a licensed HVAC contractor?

We maintain current credentials because it protects both our customers and our team.

How do I know if I need a repair or a full replacement?

We never push a replacement when a straightforward repair will genuinely solve the problem.

Do you offer maintenance plans in Exeter?

Ask your technician about current plan pricing during any service call.

How far do your technicians travel?

Our dispatch area extends throughout the greater Exeter region and nearby towns within Exeter, NH.

Do you work on business HVAC systems too?

Yes, we run separate residential and commercial divisions, both fully licensed and equipped for their respective equipment.

Do you service all HVAC brands or only certain ones?

If parts require special ordering for a less common brand, we'll communicate that timeline upfront.

Can I finance a full HVAC replacement?

Ask about financing during your in-home estimate to see what fits your situation.

What's a normal tune-up schedule?

Most Exeter homes benefit from two tune-ups a year — one before cooling season and one before heating season.

How do I stay safe until the tech gets here?

Beyond basic safety checks, it's best to leave diagnosis to a licensed technician rather than attempting a repair yourself.

Is there an overnight or weekend surcharge?

We'd rather quote it honestly on the phone than have you feel ambushed by the bill.

How long should I expect the visit to take?

Most standard repairs are completed in under two hours once the technician has diagnosed the issue and you've approved the quote.

Do I need to be home for a maintenance visit or repair in Exeter?

Let dispatch know ahead of time if access will be handled differently than a standard homeowner visit.

Close To Home

Serving Every Corner of Exeter

From the older, established streets near the center of Exeter to the newer developments on the outskirts, our trucks cover the full footprint of the city.

We also work regularly with homeowners associations, property management companies, and multi-unit buildings throughout Exeter.

Payment Options

Spreading Out The Cost Of A New System

Qualifying installations can be financed through options we'll walk you through during your in-home estimate, with terms explained clearly before you commit to anything. If a rebate or local incentive program applies to your Exeter installation, our technicians will flag it during the estimate rather than leaving you to track it down after the fact.

Service Coverage

Serving Exeter And The Surrounding Area

Coverage extends across Exeter 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.

Zip codes served in and around Exeter: 3833
Offering top quality Hvac services in Exeter, NH. Certified, licensed, and available 24/7.

Zip Codes in Exeter, NH that we also serve: 3833

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Our Services in Exeter, NH

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