Dalton Heating & Air hvac team

HVAC Company in Leominster - On-Site Today, No Overtime Charge

Same-day heating and cooling service with the price agreed before we start, and no overtime surcharge for evenings or weekends. Licensed, insured, EPA-certified technicians.

✓ Licensed & Insured ✓ Written quotes ✓ Permits handled
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We answer around the clock

🛡 Licensed & Insured 📝 Written Fixed-Price Quotes 💲 No Change Orders · Free Estimates
Every visit starts with

Seasonal tune-up and full diagnostic on your Carrier, Trane, or Goodman system - readings shown to you before any repair is proposed

Your new heating and cooling system for as low as $119/month*on approved credit; ask for current terms

Diagnosis first, numbers second - you approve the repair price before a single part goes in.

Styles & brands we work with

AC repair
AC repair
Furnace & heating
Furnace & heating
Heat pumps
Heat pumps
Ductless mini splits
Ductless mini splits
Carrier
Carrier
Trane
Trane
Goodman
Goodman

Before & after – our own jobs

Before - Recent ProjectBeforeAfter - Recent ProjectAfter
Recent Project
Before - Full RestorationBeforeAfter - Full RestorationAfter
Full Restoration
Before - Complete UpgradeBeforeAfter - Complete UpgradeAfter
Complete Upgrade

HVAC Company in Leominster, MA

Dalton Heating & Air is the HVAC company Leominster homeowners call when a furnace stops lighting in January or a condenser freezes solid during a July heat wave. We repair and install heating and cooling systems across Leominster, working on nine major residential brands and quoting every job in writing before any work begins. Leominster’s older housing stock, steep side streets, and hard winters put real stress on HVAC equipment, and our technicians see the same failure patterns house after house. Call (361) 306-9515 anytime – a live person answers, and we’ll get a crew to your door inside a stated window.

Call (361) 306-9515

Why Leominster Homes Are Different

Leominster’s HVAC work follows the age and layout of its neighborhoods. Homes near the downtown grid off Main Street and Mechanic Street tend to be pre-war construction, with fieldstone foundations, radiators converted to forced air, and ductwork squeezed into basements never designed for it. The split-levels and ranches spreading south toward I-190 and west along Route 12 are mostly 1960s and 1970s builds. Those systems are hitting the end of their design life right about now, and we regularly replace heat exchangers and blower motors in that generation of equipment.

Then there’s the hill terrain. Streets climbing up from the Nashua River valley toward the Wachusett foothills mean some Leominster homes sit in a pocket that runs five or six degrees colder than the flatter sections of town. A furnace sized for a typical central Massachusetts winter gets pushed hard on those slope lots. We also see more condensation and rust on outdoor AC units tucked into shaded backyards near Doyle Field and the open land off West Street. Humidity, tree cover, and slope all change how a system performs, and a fixed quote from a technician who’s actually worked these streets beats a phone estimate every time.

Our Main Leominster Services

Most Leominster calls we take involve one of three jobs: a cooling system that stopped cooling in summer, a heating system that quit in winter, or a home making the switch to a heat pump for year-round comfort. Each service has its own Leominster page with pricing and job detail.

AC Repair in Leominster

Central air in Leominster gets worked hard from June through September, and the most common failures we chase are refrigerant leaks, failed capacitors, and clogged condensate lines. Many Leominster homes still run R-22 systems from the 1990s and early 2000s – those units leak more with age, and repairs on them need a licensed technician who handles refrigerant by the book. We stock capacitors, contactors, and fan motors on our trucks so most AC Repair in Leominster jobs wrap up on the first visit. The repair gets a written one-year guarantee, no exceptions.

AC Repair in Leominster

Heat Pump Installation in Leominster

Heat pumps are becoming the right answer for a lot of Leominster homes, especially the 1970s ranches with electric baseboards and no ductwork. A ductless heat pump install gives those houses both air conditioning and efficient shoulder-season heat without tearing walls open. Leominster’s winter temperatures do drop low enough that we size the outdoor unit conservatively and often recommend a dual-fuel setup with a gas or oil backup. Every Heat Pump Installation in Leominster starts with a load calculation so the system matches the house, not the other way around.

Heat Pump Installation in Leominster

Furnace Repair in Leominster

Furnaces in Leominster see their heaviest use from November through March, and the call volume spikes right after the first hard freeze. Igniters, flame sensors, and limit switches fail most often on gas furnaces, while oil-burner homes in the older neighborhoods need regular nozzle and filter service to keep firing cleanly. We respond fast when a Leominster home has no heat, because a cold house in a central Massachusetts winter is a health risk, not just an inconvenience. Furnace Repair in Leominster includes the written diagnosis, the written quote, and a full year of coverage on the work.

Furnace Repair in Leominster
Need help today?Fast, friendly service and a no-obligation free estimate.

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What happens when you call

  1. 1
    A real person answersNo phone trees - you reach a local pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched.
  3. 3
    A background-checked tech heads outLicensed & insured, dispatched right away.
  4. 4
    You approve before work beginsNothing starts until you say go.

Brands We Service in Leominster

Our technicians are factory-trained on the equipment most Leominster homes actually have: Trane, Lennox, Goodman, and Rheem among them. We keep common parts for those brands on the truck, which usually means one visit instead of a follow-up. See our brands for the full list of what we work on.

Pricing for HVAC Company in Leominster, MA

Service Typical range in Leominster
AC Repair $150 – $650
Furnace Repair $150 – $700
AC Installation $3,500 – $7,500
Seasonal Tune-Up $80 – $200

What pushes a Leominster repair toward the top of that range: older R-22 refrigerant, a part that isn’t stocked locally, or a furnace from the 1980s that needs multiple components replaced at once. Regardless of where your job lands on that table, you get the number in writing before we turn a single screw. The price on the quote is the price on the invoice.

Neighborhoods We Serve in Leominster

We run service calls across all of Leominster. These are some of the neighborhoods our crews are in most weeks:

  • Downtown and the blocks around Monument Square
  • The split-levels and colonials off West Street
  • Homes along Route 12 and the Lancaster line
  • The hill streets north of the Nashua River, toward Fitchburg
  • The neighborhoods around Doyle Field and Leominster High

Within Leominster proper, we typically arrive inside a two-hour window for emergency calls.

Service Area – Cities Near Leominster

In addition to Leominster, our crews cover the surrounding north-central Massachusetts communities. If you’re in Fitchburg, MA right next door, or a little farther out in Clinton, MA, Groton, MA, or Gardner, MA, the same written pricing and one-year guarantee apply. Scheduling is handled through our Boston-area dispatch office, with technicians stationed locally to get to Leominster calls without a long drive.

Serving Leominster, MA - Our Local Coverage Area

We’re based in the Leominster area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.

FAQs About HVAC Company in Leominster

Ready to get started? Free estimates · within the hour response in Leominster
Call (361) 306-9515

What happens when you call

  1. 1
    A real person answersNo phone trees - talk to a local hvac pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
  3. 3
    We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
  4. 4
    You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.

What Leominster Customers Say

★★★★★ 5.0 from 7+ reviews

"Good communication, tidy, and disciplined work. Taped off the floor and wiped the unit down."

- Karen J.

"Installed a heat pump to replace an old oil furnace. Three clear quotes and the install crew was tidy."

- Cheryl B.

"Tech arrived in uniform right on time. AC wasn't cooling, found a failed capacitor, and replaced it in twenty minutes. The owner is a veteran and the company runs like it."

- Frank O.

How It Works in Leominster

Getting your hvac handled is simple and fast.

1

Call or Request a Free Estimate

Tell us about your hvac needs and we provide an upfront, transparent quote - no obligation, no hidden fees.

2

Licensed Technician Dispatched

A background-checked, certified technician arrives in Leominster - typically within 30-60 minutes, with parts stocked on the truck.

3

Problem Solved, Guaranteed

We complete the job to your full satisfaction, backed by our warranty and 100% satisfaction guarantee.

Current Offers

Bring these savings to your next appointment.

10%

10% Off Your First Service Visit

Valid on your first completed service visit with us.

Expires Mar 31, 2027
Always

Written Price Before Any Work Starts

Expires Mar 31, 2027
Included

Written Guarantee on Every Repair

Expires Mar 31, 2027
Free

Free Second Visit if the Repair Fails

Expires Mar 31, 2027

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Areas We Serve
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