HVAC Repair in Lexington, MA02420
Arctic Air Heating & Cooling dispatches licensed, insured heating and air conditioning technicians toLexington and the 02420 ZIP code 24 hours a day, 7 days a week. Target response time in this service zone: 60-90 minutes.
Older housing stock, hydronic heat and a strong shift toward ductless cooling and cold-climate heat pumps. Across the 02420 area that translates into a steady stream of failed capacitors, clogged filters, dying blower motors and refrigerant leaks — most of which we can diagnose and repair in one visit.
Talk to a live dispatcher in Lexington
Serving 02420 and Middlesex County — no phone trees, no callback waiting.
- We test airflow and static pressure, not just refrigerant charge
- Combustion and carbon monoxide testing on every furnace call
- Digital condition report sent to you the same day
- Financing available on qualifying replacements
★★★★★4.9 average · 121 verified reviews
- Licensed & Insured Technicians
- Background-Checked Crews
- Upfront Flat-Rate Pricing
- Same-Day & Next-Day Service
- No Overtime Charges
- All Work Warrantied
The Lexington02420 calls we answer most often
If your system is doing any of the following, it is worth a diagnostic before the fault gets more expensive.
Furnace lights then shuts down after a few seconds
Frozen evaporator coil or ice on the refrigerant lines
Refrigerant leak at a flare or coil connection
One or two rooms that never reach the set temperature
No cool air, or air that is barely cooler than the room
Musty or burnt smell the first time the system runs
Heating and air conditioning service built around Lexington
Nobody in Lexington wants to spend a day waiting on a technician with a four-hour window. We quote a 60-90 minutes target response time for this ZIP and hold crews locally so that number is realistic.
Homes in Middlesex County tend to be a mix of older builds with original ductwork and newer infill construction, which means airflow problems show up very differently from one street to the next.
If your system is over ten years old and you have had two repairs in the last two seasons, a replacement comparison is usually worth running even if the current unit still runs.
Typical Lexington service pricing
| Service | Typical Range |
|---|---|
| Diagnostic / service call | $89 – $177 |
| Capacitor replacement | $212 – $496 |
| Contactor replacement | $224 – $531 |
| Refrigerant leak repair + recharge | $378 – $1,062 |
| Blower motor replacement | $531 – $1,121 |
| Compressor replacement | $1,652 – $3,422 |
| Hot surface igniter / flame sensor | $189 – $472 |
| Furnace control board | $448 – $1,003 |
| Condensate drain / float switch | $153 – $401 |
| Thermostat install (wired or smart) | $177 – $531 |
| Duct cleaning (whole home) | $448 – $1,062 |
| Full system replacement (installed) | $7,080 – $15,340 |
Market ranges reported for Lexington, MA and the wider Northeast region. Your flat-rate quote is confirmed on site before any work begins.
Services available in 02420
Residential and light commercial, all major brands, all hours.
Air Conditioning Repair in Lexington
Diagnosis and repair for central air conditioners, heat pumps in cooling mode, ductless mini-splits and packaged rooftop units.
Furnace Repair in Lexington
Gas, propane, oil and electric furnace troubleshooting and repair.
HVAC Installation & Replacement in Lexington
Full system replacement and new construction installs with a Manual J load calculation so the equipment is actually sized for your home.
Heat Pump Repair & Service in Lexington
Heat pump diagnosis and repair for both heating and cooling operation, including cold-climate units, defrost board failures, reversing valve problems, auxiliary heat strip faults and refrigerant charge issues.
24/7 Emergency HVAC Repair in Lexington
Around-the-clock response for no-heat in freezing weather, total AC failure during a heat wave, gas smells, carbon monoxide alarms, water flooding from the indoor unit and complete system shutdowns.
Air Duct Cleaning & Sealing in Lexington
Whole-home duct cleaning and aeroseal-style duct sealing to recover lost airflow, reduce dust and lower the load on your equipment.
HVAC Maintenance & Tune-Up in Lexington
Seasonal precision tune-ups that catch failing components before they strand you.
Commercial HVAC Service in Lexington
Service for light commercial and commercial properties including rooftop packaged units, VRF and VRV systems, split systems, make-up air units and building automation controls.
What happens when you call
No forms, no waiting for a callback window. One phone call starts the whole process.
- Step 1: Call the dispatch lineYou reach a live dispatcher, not a recording. They confirm your address, the symptom you are seeing and how urgent it is.
- Step 2: Get matched to the nearest licensed techDispatch routes your job to the closest available licensed technician who already carries the common parts for your equipment.
- Step 3: On-site diagnosis with a flat quoteThe tech tests the system, shows you what failed and gives you a written flat-rate price before any work starts.
- Step 4: Approved repair, same visit when possibleMost repairs are finished on the first visit. If a part has to be ordered you get a firm return window, not a maybe.
Servicing Lexington and Middlesex County
Our 02420 coverage zone centres on Lexington and extends to the surrounding communities listed below. Every technician dispatched into this area is licensed, insured and background-checked, and every job carries a workmanship warranty.
What Lexington homeowners say
“Booked a tune-up and got a written report with photos. First time a company has actually documented anything for me.”
— James O., verified Lexington customer
“Flat rate quote before they started and that is exactly what I paid. No surprise line items at the end.”
— Priya S., verified Lexington customer
Lexington02420 HVAC questions, answered
Should I repair my system or replace it?
The usual rule of thumb: if the repair costs more than half the price of a replacement and the equipment is over ten years old, replacement generally wins. We will run that comparison with you on site and show you the maths — and if the honest answer is a $180 capacitor rather than a $9,000 system, that is the answer you get.
Are your technicians licensed and insured?
Every technician dispatched into Lexington is licensed, insured and background-checked. We can provide proof of insurance on request before the visit if you would like it on file.
Do you charge extra for nights, weekends or holidays?
No. Our pricing in Massachusetts is the same at 2am on a holiday as it is at 2pm on a Tuesday. Emergency calls are dispatched the same way as scheduled calls and carry no overtime premium.
Do you service commercial and light commercial properties?
Yes. Around Lexington we handle rooftop packaged units, split systems, VRF/VRV installations and building automation faults for offices, retail, restaurants and multi-tenant buildings, including after-hours scheduling so you are not disrupting trade.
What does a new system cost in Lexington?
A complete residential replacement in the 02420 area generally lands between $6,000 and $13,000 installed, depending on capacity, efficiency rating and how much ductwork has to be modified. We always perform a Manual J load calculation first, because an oversized unit costs more to buy and runs worse than a correctly sized one.
Do you handle ductless mini-split systems?
Yes. Ductless installations have grown quickly in Massachusetts, particularly in older homes without existing ductwork. We service indoor heads, clean filters and drain lines, check line-set insulation and diagnose communication faults between heads and the outdoor unit.
HVAC service near Lexington, MA
We also cover these Massachusetts communities with the same 24/7 dispatch line.
Need HVAC help in Lexington 02420?
Emergencies do not keep business hours and neither do we. (866) 548-3173 is answered 24 hours a day, including weekends and holidays.
(866) 548-3173Answered 24 hours a day, 365 days a year