Dalton Heating & Air hvac team

HVAC Company in Cos Cob - 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 Cos Cob, CT

Dalton Heating & Air handles heating and cooling work across Cos Cob, CT, from split-system AC repairs in older colonials to full heat pump installations in newer builds near the Mianus River. Cos Cob’s housing stock runs the gamut: 1920s saltboxes, mid-century ranches on tight lots, and recent construction north of the Post Road. That mix means no two jobs look the same, and the pricing stays in writing before any work begins. If your system is down, call (361) 306-9515 and you’ll get a live person, not a voicemail queue.

Call (361) 306-9515

Why Cos Cob Homes Are Different

Cos Cob sits low along the Mianus River and its tidal flats, which means humidity is a constant presence in basements and crawl spaces. We regularly find condensate lines clogged faster here than in drier towns further inland, and rust on older furnace cabinets where damp air collects. Homes off Valleywood Road and Indian Field Road tend to sit on smaller lots, which can make outdoor condenser placement tight; we plan around property lines and neighbor clearances rather than assuming a standard pad works.

Much of Cos Cob’s older stock predates central air, so when homeowners add cooling or switch to a heat pump, the ductwork often needs rework or the home needs a ductless design. The town also sits within Greenwich’s permitting system, so some mechanical work requires a permit pulled before we start. We handle the paperwork on our scope and flag any HOA rules that affect outdoor unit placement, particularly in the neighborhoods along Sound Beach and the Cos Cob waterfront.

Our Main Cos Cob Services

Most Cos Cob calls come down to two things: a cooling system that has quit in the middle of a humid stretch, or a heating system that will not start in January. Here is how each one works when we are on site.

AC Repair in Cos Cob

When an air conditioner stops holding temperature in Cos Cob, the usual culprits are refrigerant leaks, failed capacitors, or condensate backups from the humidity near the Mianus River. Our technicians diagnose the system, put the fix in writing, and complete the repair with parts stocked on the truck. Every AC repair carries a written guarantee, and if the same fault returns within the year, we come back at no charge. AC Repair in Cos Cob covers the full breakdown of what we check and what repairs cost.

AC Repair in Cos Cob

Heat Pump Installation in Cos Cob

Heat pumps are a strong fit for Cos Cob homes because they handle both cooling and shoulder-season heating, and the town’s humid summers put less strain on them than on older split AC setups. We size each system to the home’s actual load, not a rule of thumb, and we factor in whether ductwork exists or if a ducted or ductless layout makes more sense. Heat Pump Installation in Cos Cob explains the options, what a typical install runs, and how rebate paperwork is handled.

Heat Pump Installation in Cos Cob

Furnace Repair in Cos Cob

Older Cos Cob homes often still run gas furnaces in basements that flood or hold moisture after heavy rain, and that dampness shortens the life of ignitors, flame sensors, and control boards. When a furnace will not fire, we check the sequence of operation, identify the failed component, and quote the repair in writing before touching anything. Furnace Repair in Cos Cob lists the most common failures in this area and the price range for each.

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

Call (361) 306-9515

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 Cos Cob

Our technicians are factory-trained on nine major residential brands, including Rheem, York, Daikin, and Bryant. We keep common boards, capacitors, ignitors, and motors stocked locally so most Cos Cob repairs finish in one visit. See our brands for the full list.

Pricing for HVAC Company in Cos Cob, CT

Service Typical range in Cos Cob
AC repair $150 – $650
Furnace repair $150 – $700
AC installation $3,500 – $7,500
Tune-up $80 – $200

What pushes a Cos Cob repair toward the top of the range is usually access: tight basements, older electrical panels, or condenser units wedged against a fence or retaining wall. Whatever the job, the price is in writing before we start, and it does not change at the door.

Neighborhoods We Serve in Cos Cob

We work throughout Cos Cob, and our typical response window is same-day or next-day depending on the season and time of call. In July and January, demand is highest, so early calls get the quickest slots.

  • Cos Cob Center
  • Cos Cob Landing
  • Mianus River area
  • North Cos Cob
  • Sound Beach

Service Area – Cities Near Cos Cob

Dalton Heating & Air also serves homeowners in nearby communities, including Riverside, MD, Old Greenwich, CT, Greenwich, CT, and Stamford, CT. If you’re just outside Cos Cob, call and we’ll confirm whether we have a crew in your area that day.

Serving Cos Cob, CT - Our Local Coverage Area

We’re based in the Cos Cob 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 Cos Cob

Ready to get started? Free estimates · within the hour response in Cos Cob
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 Cos Cob Customers Say

★★★★★ 5.0 from 7+ reviews

"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.

"Blower motor died on the coldest night. They had the part on the truck and had us warm again the same day."

- Sandy G.

How It Works in Cos Cob

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 Cos Cob - 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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