EXPERTHEATING&COOLING
Installation, repair, and maintenance of residential and commercial HVAC systems. Licensed technicians serving the seacoast region — available 24/7 for emergencies.
OUR SERVICES
From new system installations to emergency repairs and preventive maintenance — we handle every aspect of your home's HVAC needs.
HVAC Installation
Expert installation of high-efficiency furnaces, boilers, heat pumps, and complete HVAC systems. We work with all major brands and ensure every installation meets code.
- Gas Furnaces
- Boilers & Radiant Heat
- Heat Pumps
- Ductwork Design
HVAC Repair
Fast, reliable repair service for all makes and models. Our licensed technicians diagnose issues accurately and fix them right the first time.
- All Makes & Models
- Same-Day Service
- 24/7 Emergency Calls
- Honest Diagnostics
Heating Systems
Complete heating solutions including oil-to-gas conversions, boiler replacements, and radiant floor heating. Stay warm through every New England winter.
- Oil-to-Gas Conversions
- Boiler Replacement
- Radiant Floor Heat
- Thermostat Upgrades
Air Conditioning
Central AC installation, repair, and maintenance. From ductless mini-splits to whole-home central air systems — we keep you cool when it matters most.
- Central AC Systems
- Ductless Mini-Splits
- AC Repair
- Seasonal Tune-Ups
Indoor Air Quality
Improve the air your family breathes with whole-home filtration, humidifiers, dehumidifiers, and UV air purification systems.
- Air Filtration
- Humidifiers
- Dehumidifiers
- UV Purification
Maintenance & Tune-Ups
Preventive maintenance extends equipment life, improves efficiency, and prevents costly breakdowns. Keep your system running at peak performance all season long.
- Annual Tune-Ups
- Filter Replacement
- Safety Inspections
- Efficiency Optimization
WHY CHOOSE
DOUCETTE HVAC?
We've built our reputation one job at a time across the New Hampshire seacoast. When your system needs attention, you deserve a team that shows up on time, communicates clearly, and gets the job done right.
"Proudly serving Dover, NH and the surrounding seacoast communities."
Licensed & Insured
Fully licensed in New Hampshire and comprehensively insured. Your home and family are protected on every job.
24/7 Emergency Service
Heating and cooling emergencies don't wait for business hours. Our technicians are available around the clock when you need us most.
Experienced Technicians
Years of hands-on experience with residential and light commercial HVAC systems across the seacoast region.
Local & Trusted
We're your neighbors. Doucette HVAC is a locally owned business proud to serve the seacoast community.
Quality Guaranteed
We stand behind our work. Every installation and repair comes with our satisfaction guarantee and manufacturer warranties.
Transparent Pricing
No hidden fees, no surprise charges. We explain what's needed, why it's needed, and provide clear estimates before any work begins.
WHAT OUR CUSTOMERS SAY
Doucette HVAC replaced our aging furnace and the whole process was seamless. Eric and his team were professional, clean, and explained everything clearly. Our home has never been warmer.
Called them on a Sunday night when our AC went out in July. They had a tech at our door within two hours. Incredible service — I won't call anyone else for HVAC work.
We've been on their annual maintenance plan for three years. Our system runs better than ever and we've avoided any major repairs. Highly recommend their preventive care program.
MEET
ERIC DOUCETTE
Eric Doucette founded Doucette HVAC with a straightforward mission: deliver honest, expert heating and cooling service that seacoast homeowners can genuinely count on. After spending years working for larger HVAC companies, Eric recognized that customers deserved something better — a technician who shows up when he says he will, explains the work in plain language, and charges a fair price.
A New Hampshire native, Eric brings over 15 years of hands-on experience with residential and light commercial HVAC systems. He holds all required New Hampshire licenses and stays current with the latest equipment technologies and energy-efficiency standards. Whether it's a routine tune-up or a full system replacement in the middle of a January cold snap, Eric approaches every job with the same level of care and attention to detail.
When he's not keeping homes comfortable, Eric is a proud member of the seacoast community — coaching youth sports, supporting local businesses, and building the kind of reputation that only comes from doing right by your neighbors, one job at a time.
SERVICE AREA
Based in Dover, NH — proudly serving homeowners and businesses throughout the greater seacoast region, including Southern Maine.
New Hampshire
Maine
GET IN TOUCH
Ready to schedule service or have questions about your HVAC system? Reach out — we respond promptly and are always happy to help.
Heating or cooling emergency? Don't wait. Call us any time — day or night, weekends and holidays.