Connecticut · Four Generations
The HVAC Company Connecticut Grew Up With
Heating, cooling, plumbing, generators, geothermal and oil delivery, designed, installed, and serviced by the same family business that’s kept Connecticut homes comfortable for 110 years. One team. Seven active licenses. No franchise, no private-equity rollup. Just the Manns.
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Years in Service0
Hour Emergency ResponseFour Generations of Manns
Same family.
Same shop.
Same address.
Unlike national chains or roll-up LLCs that change ownership every few years, Ralph Mann & Sons is still run by the Mann family. Craig Mann leads the business today with the same values his grandfather built it on.
1916
RALPH MANN SR.
Founds the company on Main Street
1948
SECOND GENERATION
Ralph Jr. expands into commercial heating and oil delivery.
1976
THIRD GENERATION
Cooling and plumbing added. First CT master licenses issued.
2003
GEOTHERMAL DIVISION
Among the first CT contractors certified by IGSHPA.
2026
FOURTH GENERATION
Craig Mann leads a team of licensed technicians across five counties.
"We're still at the same address my grandfather unlocked every morning."
What We Do
Many Trades,
One Licensed Team.
Click a service to see what's inside. We hold seven active CT licenses and staff each discipline in-house, so multi-trade jobs never require a sub.
Heating & Cooling
Plumbing
Generators
Geothermal
Indoor Air
Sound Familiar?
The Reasons People Call Us after Someone Else
Most of our new customers come to us frustrated with a contractor who didn't show up, undersized the equipment, or left them with a bill that didn't match the estimate. We built our playbook around the problems we saw other contractors creating.
Other contractors going wrong
Missed appointments, shifting quotes, unlicensed techs. The #1 reason homeowners switch to us is that the last company didn't call back.
→ We answer our own phones. The Mann family still picks up.
HVAC repairs that never hold
Short-cycling furnaces, uneven temperatures, and condensate leaks. Symptoms that usually trace back to a bad install, not a bad unit.
Indoor air quality issues
Musty basements, dust, humidity swings, allergy flare-ups. A properly engineered system controls air, not just temperature.
→ We pair HVAC with ventilation, filtration and humidity control.
High energy costs
Utility bills climbing year over year, especially in Connecticut's shoulder seasons. Oversized or outdated equipment is usually the culprit.
Reliability when it actually matters.
Heat out on the coldest night. AC failing during a heat wave. A generator that won't start when the power does. Ralph Mann runs a 24/7 emergency line answered by our own dispatcher.
RESIDENTIAL
Where CT families live.
Single-family homes, townhouses, historic properties and new builds across the Naugatuck Valley and shoreline. We design systems that fit the house, the family, and the utility bill.
› Furnace, boiler & heat-pump replacement› Central AC & ductless mini-splits› Generators & standby power› Plumbing, water heaters & oil delivery› Indoor air quality & humidity control
COMMERCIAL
Where CT works.
Restaurants, offices, multi-family, retail, light industrial and municipal clients across five counties. Licensed across HVAC, plumbing, electrical and oil — so your maintenance contract covers one phone call instead of five.
› Rooftop units & commercial boilers› Light-industrial process cooling› Standby power & transfer switches› Plumbing, backflow & drain service
Connecticut
We Know These Towns Because We Live in Them.
Same-day emergency service in our core Naugatuck Valley territory. Next-day appointments across New Haven, Fairfield and Litchfield counties. Every technician on a Ralph Mann license; every truck from the same Ansonia shop.
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Min Avg Response, Core Service Area0
Connecticut Counties Served0%
In-House Technicians| New Haven County | Milford · Hamden · North Haven · surrounding communities |
| Fairfield County | Westport · Fairfield · Stamford · greater shoreline |
| Litchfield County | Litchfield · Torrington · scenic hills communities |
WHAT WE DO
We hold seven active CT licenses and staff each discipline in-house, so multi-trade jobs never require a sub.
Trusted Equipment Partners
The Brands We Stand Behind.
We install equipment from the manufacturers with the best service records and warranty support - because a warranty is only as good as the contractor behind it.
Client Stories That Speak
Our work is best told by those who’ve experienced it.
Hear firsthand how Ralph Mann consistently delivers value and trust.
Compliance
Licenses on file.
Every trade we offer is performed under an active CT license held by a Ralph Mann employee. Never a sub.
| License | Number |
|---|---|
| Home Improvement Contractor | HIC.0504051 |
| Heating · S1 Master | HTG.0303047-S1 |
| Heating · ST1 | HTG.0307938-ST1 |
| Home Oil Dealer | HOD.0000368 |
| Fuel Retail Permit | FRP.0010753-F1 |
| Plumbing · P1 Master | PLM.0203557-P1 |
| Electrical · E1 | ELC.0123595-E1 |
| Refrigerant Handling | EPA §608 |
Certifications: BBB A+ · AHRI · NATE · IGSHPA · GEOEXCHANGE · CHCC
A century of keeping Connecticut comfortable.
Schedule a consultation, request a quote or call our 24-hour emergency line.
Someone from the Mann team will answer.