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.
HVAC Company in Wellesley, MA
Coldharbour Heating & Air dispatches technicians to Wellesley from our Boston office, with crews arriving same-day for most repair calls to (817) 402-2972. Wellesley’s pre-war housing stock, inland climate, and preservation-minded building culture make every HVAC job here meaningfully different from work in neighboring towns. We’re trained on the high-velocity small-duct systems, steam boiler retrofits, and ductless mini-splits that dominate the local market, and we price every job in writing before a tool comes out.
Our Main Wellesley Services
Wellesley homeowners call us most often for cooling repairs in July and August, and for heating repairs when steam or forced-air systems fail in January. Each service has its own dedicated Wellesley page with deeper detail.
AC Repair in Wellesley
Summer humidity along the Charles River corridor pushes latent loads hard on aging cooling equipment. We repair central air conditioners, ductless mini-splits, and high-velocity small-duct systems common in Wellesley Hills and Wellesley Square homes built without original ductwork. Our trucks carry capacitors, contactors, and refrigerant for Carrier, Trane, and Lennox systems, and every repair comes with our written 365-Day Done Right Promise. AC Repair in Wellesley

Furnace Repair in Wellesley
Wellesley’s heating landscape splits three ways: original steam boilers with cast-iron radiators, mid-century forced-air furnaces, and recent condensing gas systems. We service all three, including the one-pipe and two-pipe steam setups that still heat many Colonial Revival and Tudor homes near Wellesley College. Igniter failures, zone valve issues, and low-water cutout problems are common calls when temperatures drop below 10 degrees. Furnace Repair in Wellesley

AC Installation in Wellesley
Installing cooling in a Wellesley home without existing ducts requires solving the distribution problem first. We size and install Unico high-velocity small-duct systems and multi-zone ductless mini-splits for homes where conventional ductwork would compromise historic plaster and millwork. Every installation is load-calculated to Climate Zone 5A standards with full latent-load accounting for the wetland corridor. AC Installation in Wellesley

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.
Why Wellesley Homes Are Different
Wellesley’s most desirable neighborhoods are dominated by large pre-WWII Colonial Revival, Tudor, and Victorian homes that run on steam or hot-water boiler systems with cast-iron radiators and zero existing ductwork. Every central A/C retrofit or boiler replacement on these properties requires solving the no-duct problem first, making high-velocity small-duct systems and ductless multi-zone mini-splits the de facto standard rather than the exception.
Sitting roughly 12 miles inland from Boston Harbor, Wellesley loses the coastal temperature moderation that buffers towns like Quincy or Hingham. Sharper winter lows and more sustained summer humidity mean heating design loads push hard into the upper range for Climate Zone 5A, and the Charles River corridor and surrounding wetlands contribute meaningful latent load that undersized cooling equipment struggles with in July and August.
Wellesley’s Architectural Review Board and neighborhood preservation culture mean homeowners routinely push back on visible exterior condensing units near historic streetscapes. Technicians here commonly field requests to conceal or relocate equipment behind landscaping or fencing in ways that must still satisfy MA State Plumbing & Gas Code clearance requirements, a permitting and design balancing act that rarely comes up in less preservation-conscious adjacent towns.
Brands We Service in Wellesley
Our technicians are trained to service nine major residential HVAC brands including Trane, Lennox, Goodman, and Rheem. We stock common capacitors, contactors, igniters, and blower motors locally, which means most Wellesley repair calls are completed in a single visit. our brands
Pricing for HVAC Company in Wellesley, MA
| Service | Typical range in Wellesley |
|---|---|
| AC Repair | $150-$650 |
| Furnace Repair | $150-$700 |
| AC Installation | $3,500-$7,500 |
| Tune-Up | $80-$200 |
Prices in Wellesley trend toward the upper end of these ranges when jobs involve historic-home access challenges, custom condenser placement to satisfy preservation guidelines, or steam-to-forced-air conversions requiring electrical and gas line upgrades. We hand you a written price before any work begins, and that number does not change at the door.
Neighborhoods We Serve in Wellesley
We cover all of Wellesley with same-day response for repairs called in before early afternoon. These are the neighborhoods where we most commonly work:
- Wellesley Hills
- Wellesley Square
- Wellesley College area
- Cedar Street corridor
- Longmeadow Road vicinity
Service Area – Cities Near Wellesley
Our Boston-coordinated dispatch reaches beyond Wellesley to neighboring communities where homeowners face similar inland-climate and historic-housing challenges. We regularly serve Needham, MA, Dover, MA, Framingham, MA, and Newton, MA with the same written pricing and 365-Day Done Right Promise.
Serving Wellesley, MA - Our Local Coverage Area
We’re based in the Wellesley 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 Wellesley
Same-day arrival is standard for repair calls received by early afternoon, and our phones are answered by a live person 24 hours a day. After-hours emergency calls are dispatched immediately to the on-call technician.
Yes. The Architectural Review Board and neighborhood preservation guidelines often require concealed or relocated outdoor equipment. We handle the MA State Plumbing & Gas Code compliance and documentation needed for these placements.
Absolutely. One-pipe and two-pipe steam systems with cast-iron radiators are common in pre-1945 Wellesley housing, and our technicians are trained to diagnose and repair these systems where many companies only service forced-air equipment.
Call Coldharbour Heating & Air at (817) 402-2972 for a free estimate. We’ll give you a written price before any work begins, and every repair is backed by our 365-Day Done Right Promise in writing.
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 Wellesley Customers Say
"Honest to a fault. Two companies told me I needed a whole new unit. Coldharbour said mine had years left and just needed a cleaning and a part. Saved me thousands."
- Marcus Reilly"Furnace wouldn't light the first cold morning. The guy walked me through what he was checking so I actually understood it. Replaced the igniter, wrote up the warranty, and it's been warm since."
- Alicia Romero"AC died overnight with a newborn in the house. They bumped us up the list and had it running by noon. I about hugged the guy. Fair price even on a rush call."
- Celeste Ngo







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