Seasonal tune-up and full diagnostic on your Carrier, Trane, or Goodman system - readings shown to you before any repair is proposed
Diagnosis first, numbers second - you approve the repair price before a single part goes in.
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Before
AfterHVAC Company in Lexington, MA
Most HVAC service calls in Lexington involve homes built during the post-WWII suburban boom with oil-fired hydronic heat and no ductwork, which means cooling retrofits and fuel conversions here are fundamentally different from standard equipment swaps. We’re Brandt HVAC, and our Lexington crews spend a lot of time solving the no-duct problem first, whether that’s designing a ductless mini-split system or planning a whole-home heat-pump conversion that works with existing baseboard distribution. If you need heating or cooling help in Lexington, call us at (984) 538-9003, a live person answers 24 hours a day.
Why Lexington Homes Are Different
Lexington’s housing story is written in two distinct chapters. The dominant chapter runs from roughly 1950 to 1975, when the town’s population nearly doubled along the Routes 2 and 4/225 corridors. Builders filled the landscape with Cape Cods, split-levels, and Colonial Revivals, almost all heated by oil-fired Burnham or Weil-McLain boilers feeding hot-water baseboard, with no supply ductwork installed because nobody expected central air conditioning in a Massachusetts suburb.
That decision echoes through every service call we make. A cooling retrofit in Lexington isn’t a simple condenser swap, it’s a ductless mini-split design problem or a creative whole-home solution. The older stock near Lexington Center adds another layer, pre-war and early-20th-century homes with steam or gravity hot-water systems that complicate any modern equipment swap.
Climate matters too. Sitting 11 – 12 miles inland from Boston, Lexington runs 3 – 5°F colder on winter nights than coastal towns, pushing design heating loads higher and making cold-climate heat-pump selection critical. Summer dew points hit 65 – 70°F regularly, and without ductwork, there’s no built-in dehumidification path. Lexington has also adopted the Massachusetts Stretch Energy Code, and the homeowner base here arrives at consultations already researching Mass Save rebate tiers and SEER2 minimums, technicians need to speak confidently about Mitsubishi Hyper Heat versus standard inverter units or the job goes elsewhere.
Our Main Lexington Services
Lexington homeowners call us most often for these three services, each with its own dedicated Lexington page below.
AC Repair in Lexington
AC repair in Lexington usually means a ductless mini-split that’s not cooling properly, a refrigerant leak in a lineset run through a 1960s Colonial’s exterior walls, or a failed compressor in a heat-pump condenser we installed as part of a fuel-conversion project. Because so many Lexington homes lack ductwork, we carry a deep inventory of mini-split heads, line covers, and mounting hardware specific to retrofit installations. If your ductless system is blowing warm air or showing an error code, AC Repair in Lexington covers what we check first and how we price it.
Furnace Repair in Lexington
When Lexington homeowners say “furnace,” they often mean the oil-fired boiler in their basement, a Burnham or Weil-McLain unit that’s been heating their Cape or split-level since the Nixon administration. We repair circulator pumps, zone valves, ignition systems, and the aging copper or steel distribution piping that runs through baseboards. We also service the smaller share of forced-air furnaces in newer Lexington construction and conversions. For what fails most often and what it costs, see Furnace Repair in Lexington.
AC Maintenance in Lexington
AC maintenance in Lexington is largely mini-split and heat-pump maintenance, cleaning coils that live on exterior walls or under decks, checking refrigerant charge in linesets that weren’t part of the original home design, and verifying that condensate drains properly in the humid July weeks when dew points climb. We also maintain the smaller number of traditional central-air systems in homes that have added ductwork. Our tune-ups include a written report of what we found, with photos. Details are on AC Maintenance in Lexington.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Lexington
We service all major residential HVAC brands in Lexington, including Rheem, York, Daikin, and Bryant. Our trucks carry common control boards, capacitors, and refrigerant fittings for these brands, which means most repairs finish in a single visit without waiting on parts. See our brands for the full list.
Pricing for HVAC Company in Lexington, MA
| Service | Typical range in Lexington |
|---|---|
| AC Repair | $150 – $650 |
| Furnace Repair | $150 – $700 |
| AC Installation | $3,500 – $7,500 |
| Tune-Up | $80 – $200 |
What pushes Lexington prices toward the higher end: homes with no existing ductwork require more labor for any cooling work, older oil-fired systems often need multiple zone valve or circulator replacements in one call, and the Stretch Energy Code can trigger additional efficiency requirements on new installations. Every job starts with a written price before any work begins, no exceptions.
Neighborhoods We Serve in Lexington
We dispatch Lexington crews from our Boston office and typically arrive within 45 – 60 minutes for urgent calls across these neighborhoods:
- Lexington Center
- East Lexington
- North Lexington
- Pine Meadow
- Follen Heights
Service Area – Cities Near Lexington
Our service area extends to homeowners in Woburn, MA, Winchester, CA, Burlington, MA, and Arlington, WA. Dispatch and scheduling for Lexington are coordinated from our Boston office, with local crews serving each community directly.
Serving Lexington, MA - Our Local Coverage Area
We’re based in the Lexington 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 Lexington, MA
We typically arrive within 45 – 60 minutes for urgent calls in Lexington, with live phone answering 24 hours a day. Call (984) 538-9003 and we’ll give you a real ETA before the technician is dispatched.
Yes, Lexington has adopted the Massachusetts Stretch Energy Code, which sets higher efficiency requirements than the base code for new installations and major alterations. Our technicians calculate loads and specify equipment that meets or exceeds these requirements, and we handle Mass Save rebate paperwork for qualifying heat-pump conversions.
Most equipment replacements and new installations require a Lexington building permit, especially under the Stretch Energy Code. We pull permits as part of our standard process and schedule inspections so you don’t have to coordinate with the town yourself. Call (984) 538-9003 to discuss your specific project.
What happens when you call
- 1A real person answersNo phone trees - talk to a local hvac pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Lexington Customers Say
"Annual tune-up on the furnace. He cleaned the burners, tested the heat exchanger, and told me what was fine and what to watch. No scare tactics."
- Lorraine E."Maintenance plan is simple and the tech showed me the readings, not just said it was fine."
- Maribel C."Condenser fan motor replaced the same day. Clean, quick, and the quote didn't change."
- Lamar R.