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.
Fast, Reliable AC Installation Across Wellesley
New central air in Wellesley typically costs between $3,500 and $7,500, and the job usually takes one to two days once equipment arrives. We’re Meadowsweet Heating & Air, and our AC Installation crews work in Wellesley every week, from Wellesley Hills to the neighborhoods around Lake Waban. If you’re weighing options for a pre-war Colonial or a newer build near Route 16, call (747) 966-3037 and we’ll walk you through what makes sense for your house, your budget, and WMLP’s specific rebate programs.
Why Meadowsweet Heating & Air Is Wellesley’s Preferred AC Installation Company
Luis Serrano leads our Wellesley work, and he’s spent enough time in these homes to know that a 1920s Tudor off Washington Street needs a different plan than a 1990s Colonial near the Dover line. That’s why we don’t send a salesperson with a brochure. We send a technician who measures, calculates, and gives you a written price before any work starts. The Cedarwell Care Promise is part of every job: shoe covers and drop cloths on every floor we touch, a photo of the clean-up before the crew leaves, and a 365-Day Done Right Promise that says if it isn’t right, we make it right.
Wellesley homeowners have called us for everything from adding a single mini split to a finished third-floor bedroom to replacing a full central system in a house that’s never had ductwork. We answer the phone with a live person 24/7, so when it’s 90°F in July and your condenser quits, you’re not leaving a voicemail. You’re talking to someone who can get a crew to Wellesley the same day.
Furnace Installation in Wellesley
Furnace Installation in Wellesley usually runs $3,500 to $7,000, and it’s the right move when a gas or oil furnace is nearing the end of its life or needs repairs that no longer make financial sense. Many Wellesley homes we visit still run on steam boilers or older forced-air furnaces, and the decision to replace often comes down to efficiency, noise, and whether the existing ductwork can be reused.
Cold-Climate Sizing for Older Homes
Wellesley’s design low sits around 0°F to -6°F, so we don’t size furnaces on a rule of thumb. We run a room-by-room load calculation that accounts for plaster walls, original windows, and finished basements. That’s the difference between a furnace that runs efficiently and one that short-cycles all winter.
Steam-to-Air Conversions
If you’re leaving a one-pipe steam system behind, we’ll explain exactly what changes: the old radiators stay or go, new supply and return runs go in, and the system gets commissioned so airflow is balanced across every floor. It’s a bigger job than a simple swap, and we give you the full written price before any tools come off the truck.
HVAC Installation in Wellesley
HVAC Installation in Wellesley often means more than swapping a condenser. In a town where so many homes were built between 1890 and 1945 without ductwork, a full install can involve running new supply and return lines, adding a ducted air handler, or designing a hybrid system with ductless heads in older sections of the house. Typical costs land between $3,500 and $7,500 depending on scope, and we always provide a written price after a proper load calculation, never before.
Multi-Zone Design for Multi-Story Homes
The Colonials and Tudors around Wellesley Hills and Dana Hall are rarely one rectangular box. They have additions, sunrooms, finished attics, and basements that all behave differently. We design zones room by room so a single system doesn’t try to cool a south-facing sunroom and a shaded study the same way. That’s how you get even temperatures instead of one comfortable room and four that aren’t.
Humidity Control and Outdoor Unit Placement
Wellesley sits in the Charles River watershed, and homes near Lake Waban or the town’s brooks carry more ground moisture than a house on a hill in Dover. We pay attention to latent capacity, not just sensible cooling. A system that hits the right temperature but leaves the basement clammy isn’t doing its job. Outdoor unit placement matters too: shade, airflow clearance, and drainage all affect how well the system dehumidifies and how long it lasts.
Trusted Brands We Service in Wellesley
We install and service Rheem, York, Daikin, and Bryant equipment, along with five other major brands. For Wellesley homeowners, that means you’re not locked into whatever one brand a contractor happens to stock. We size the system to the house first, then match the brand and model to what you need: quiet operation for a bedroom wing, cold-climate heat pump ratings for a full electrification project, or variable-speed comfort in a large open living space. Parts for these brands are readily available to us, so a follow-up repair doesn’t turn into a week of waiting.
Common AC Installation Problems We See in Wellesley Homes
- Short-cycling from square-footage guesses. A four-ton unit thrown into an irregular multi-story Colonial without a Manual J will run in short bursts and never dehumidify properly. We see this constantly, and the fix is a room-by-room load calculation before equipment is ordered.
- Outdoor units placed on shaded north walls near Lake Waban. It sounds smart for efficiency, but without a latent-capacity check, those systems cool the air and leave the basement muggy all summer. Placement and dehumidification strategy go together.
- Multi-zone systems commissioned without refrigerant balance checks. One zone freezes up while another can’t reach setpoint, and the homeowner blames the equipment. It’s almost always the setup. We verify charge and static pressure at every head before we call a job done.
- Ductwork retrofits that ignore plaster walls and finished basements. Running ducts through a 1920s Tudor isn’t the same as a 1990s colonial. We map the house, plan around existing rooms, and tell you upfront what will and won’t be visible when we’re finished.
Pricing for AC Installation in Wellesley, MA
A new AC system in Wellesley runs between $3,500 and $7,500, and the range is driven by equipment type, home size, and whether ductwork exists. Here’s how that breaks down:
| Service | Typical Range in Wellesley |
|---|---|
| AC Installation | $3,500 - $7,500 |
| Furnace Installation | $3,500 - $7,000 |
| Tune-Up | $80 - $200 |
Mini splits and heat pumps can run higher when you’re adding multiple zones or converting from steam. The free estimate we provide includes a written price before any work begins, so you’ll know the exact number before you sign anything. Call (747) 966-3037 and we’ll schedule a time to walk through your house and give you a real figure, not a guess.
We Also Serve Cities Near Wellesley
Our crews regularly work in Wellesley and the surrounding towns, including Needham, Dover, Framingham, and Newton. If you’re in one of those communities and need AC installation, furnace work, or a full system replacement, the same crews, pricing structure, and 365-Day Done Right Promise apply.
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 AC Installation in Wellesley
Yes, but not by connecting a heat pump to the existing steam loop. One-pipe steam distributes heat through cast iron radiators and a single pipe, and heat pumps need either ducts or ductless heads. The practical path is a room-by-room mini split design: one head per bedroom plus shared spaces, often paired with a ducted air handler for a finished basement or addition. We’ve done exactly this on a 1920s Tudor off Washington Street, and the result was even temperature control without the old window units the homeowners had lived with for years. Call (747) 966-3037 and we’ll come out and tell you what a conversion would look like in your specific house.
Yes. Wellesley is served by the Wellesley Municipal Light Plant, not Eversource, and that changes the rate schedules, interconnection rules, and rebate programs you’re eligible for. A high-SEER2 heat pump in Wellesley can qualify for different incentives than the exact same equipment across the town line in Needham. We size and specify around WMLP’s programs, which matters because a rebate stack can shift the payback on a higher-efficiency unit by thousands of dollars. Call (747) 966-3037 and we’ll pull up what applies to your address.
Because the old unit was probably sized wrong in the first place, and Wellesley’s older homes hide that problem behind thick plaster walls. A room-by-room Manual J accounts for window orientation, ceiling height, insulation, and the home’s actual floor plan, not a square footage guess. In irregular multi-story Colonials, matching the old tonnage often means short-cycling and poor humidity control. The calculation takes a couple of hours and it’s included in the free estimate.
We design for latent capacity, not just temperature. Homes near Lake Waban, the Charles River, or the town’s brooks carry real ground moisture, and a system that hits 72°F but leaves the basement at 65% relative humidity isn’t doing the job. We specify equipment with proper dehumidification performance, sometimes adding a dedicated dehumidification mode or a small ducted unit for the basement zone. Placement of the outdoor unit and the air handler both affect this, so it’s part of the design from the start, not an afterthought.
Commissioning is the step most installs skip, and it’s the difference between a system that works right and one that freezes up in one zone while another can’t reach setpoint. We verify refrigerant charge at each head, confirm static pressure at every air handler, and balance airflow across all zones. Then we run the system in heating and cooling modes and check temperature differentials room by room. If anything’s off, we fix it before we leave. Every job carries the 365-Day Done Right Promise, and a multi-zone system that wasn’t commissioned properly falls squarely under that guarantee.
If you’re planning an AC installation in Wellesley, call (747) 966-3037 for a free estimate. We’ll send a technician who knows the town’s homes, answers your questions in plain English, and gives you a written price before any work begins. Whether you’re converting from steam in Wellesley Hills, adding central air near Lake Waban, or replacing an old system in a house off Route 16, we’ll treat your home like it matters, because it’s yours.
Written by Luis Serrano, Owner at Meadowsweet Heating & Air, serving Wellesley with the Cedarwell Care Promise since 2004.







Before
After
Before
After
Before
After