Big Red Services - HVAC, Plumbing, Electric
Verified Pro
~6 years online4.9
HVAC Installation & Repair in Dover, DE
Compare 25 hvac installation & repair contractors near you in Dover and surrounding area with an average rating of 4.4/5. Get free quotes, read reviews, and find the right pro for your project.
Last updated March 23, 2026
Most pros respond within 2–24 hours
Verified Pro Installers
Other Businesses in This Area
JAM Air, LLC HVAC & Duct Cleaning
5.026+ years onlineSears Heating and Air Conditioning
5.0~26 years onlineSid Harvey Industries - HVAC/R Specialist Distributor
5.029+ years onlineAir Temp Solutions - AC Repair, Heating Repair, Water Heater Repair & Plumbing Dover DE
4.85½+ years onlineBenjamin Franklin Plumbing of Dover
4.8~26 years onlineDel-Mar-Va Heating & A/C, Inc
4.812 years onlinePoore's Propane
4.8~28 years onlineDover Plumbing Supply
4.714 years onlinePrice Plumbing Inc
4.74 years onlineAir Quality HVAC Services Inc.
4.65½+ years onlineCapitol A/C & Radiator Service.
4.6Henry Eashum & Son Inc
4.59½+ years onlineDover Heating & Air Conditioning
4.4Daikin Comfort
4.313½+ years onlineJohnstone Supply
4.230+ years onlineNortheastern Supply
4.230+ years onlineCarl King Energy Services
4.025½+ years onlineAmazing Dryer Vent & AIr Duct Cleaning And Chimney Inspection Services Of Dover, DE
3.8HVAC Installation & Repair in Nearby DE Cities
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About HVAC Installation & Repair in Dover
HVAC work covers heating, ventilation, and air conditioning — from furnace and AC replacement to ductwork modification and zoning systems. Regular maintenance extends equipment life, but most units need replacement every 15–20 years.
Typical costs: A new central AC unit installed runs $3,500–$7,500. Furnace replacement is similar. A complete HVAC system (furnace + AC + ductwork) can be $10,000–$20,000+ depending on home size and equipment efficiency rating.
Common projects include:
- Central AC replacement
- Furnace or boiler replacement
- Ductwork installation or modification
- Mini-split / ductless system installation
- Thermostat upgrade and zoning
HVAC replacements and new installations typically require mechanical permits. Equipment changes that affect gas lines or electrical circuits may need additional permits.
Frequently Asked Questions
- How much does hvac installation & repair cost in Dover?
- Costs depend heavily on system type and home size. A straightforward AC swap on an existing system runs $3,500–$7,500. Switching from forced air to a mini-split system, or adding ductwork, increases cost significantly. Always get 2–3 quotes.
- How do I find a reliable hvac installation & repair contractor in Dover?
- HVAC contractors should be licensed and insured. Ask about their experience with your specific system type (forced air, boiler, heat pump, mini-split). Get load calculations — a good contractor sizes the system to your home, not just matches what you had before.
- Do I need a permit for hvac installation & repair in Dover?
- Most HVAC installations and replacements require a mechanical permit and inspection. Your contractor should pull the permit — if they suggest skipping it, that's a red flag.
About NeedInstall
NeedInstall helps connect customers with local installation professionals across Dover and surrounding communities. Featured contractors have claimed their profile and verified their business information. Listings marked as "Verified Pro" have been confirmed by the business owner.