Private Preview Prepared for NI Hvac · Questions? Call Eddie: (857) 208-7241
Fast Local Dispatch: Serving Lowell, MA & Nearby Areas
Fully Licensed & Insured: Professional Local Service
Emergency Priority

NI Hvac

Lowell's 24-hour HVAC specialists — honest diagnostics, upfront pricing, and comfort done right across Lowell, Chelmsford, Billerica, Tewksbury, Dracut, Lawrence & Andover.

Call (978) 746-4999 Get an Estimate →
Fully Licensed & Insured
Upfront Pricing
Fast Local Response
NI Hvac service vehicle and equipment
high-efficiency heat pump mini-split conversions, Mass Save rebate compliance, steam boiler tune-ups

Our Workmanship Promise

Every project is backed by our full craftsmanship guarantee. Clear communication, itemized quotes before work begins, and respect for your property.

Interactive Troubleshooting

Need Immediate Guidance?

Select the issue you're experiencing to see typical root causes and upfront diagnostic recommendations for Lowell properties.

24/7 Emergency Heating & Cooling Repair

24/7 Emergency Heating & Cooling Repair Service

Furnace out at midnight or AC dead during a heat wave? We're on call around the clock with fully stocked trucks for same-visit repairs on furnaces, boilers, central AC, and mini-splits — diagnosed and quoted before work begins.

📞 Call (978) 746-4999
Service Specialties

Core Trade Capabilities

Comprehensive, licensed solutions for homes and businesses in Lowell and surrounding areas.

24/7 Emergency Heating & Cooling Repair

Furnace out at midnight or AC dead during a heat wave? We're on call around the clock with fully stocked trucks for same-visit repairs on furnaces, boilers, central AC, and mini-splits — diagnosed and quoted before work begins.

Ductless Mini-Split & Heat Pump Conversion

Replace costly window units and baseboard heat with high-efficiency ductless mini-splits sized room by room. We handle load calculations, line-set routing through older Lowell framing, and cold-climate heat pump selection rated for Massachusetts winters.

Steam & Hot Water Boiler Tune-Ups

Lowell's older homes run on steam, and steam doesn't forgive neglect. Our tune-ups cover burner combustion testing, pressuretrol calibration, air vent and pigtail inspection, and skim-tube work to cure banging, short-cycling, and uneven radiators.

Mass Save Rebate Compliance & Energy Assessments

We install to Mass Save program specifications and manage the documentation end to end — HSPF/SEER2 rating verification, insulation coordination, and rebate filing — so your heat pump or boiler upgrade qualifies for maximum incentives without the paperwork headache.

Physical Proof of Work

Visual Transformations & Upgrades

Real project comparisons demonstrating code-compliant modernizations and equipment replacements in Lowell.

Recent Work from NI Hvac

Photos from NI Hvac's verified Google listing and local portfolio

Actual business photos
Work photo from NI Hvac's gallery
Work photo from NI Hvac's gallery
Work photo from NI Hvac's gallery
Every Job, Our Standard
  • Fully licensed & insured professional team
  • Upfront itemized quotes before work begins
  • Respect for your home — tidy and swept work sites
Warranty discussed with your estimate
Get a Free Estimate → 📞 Dispatch

Cold-Climate Heat Pump Modernization

Weathered 10 SEER AC condenser rattling loudly with failing compressor and R-22 refrigerant

Illustrative example — not NI Hvac's work
Before upgrade BEFORE
After upgrade AFTER
Key Upgrade Specifications
  • Licensed, code-compliant installation
  • Upfront pricing agreed before work begins
  • Work area cleaned up on completion
Warranty discussed with your estimate
Request This Upgrade → 📞 Dispatch

High-Efficiency Furnace Modernization

Draft-hood 80% furnace with rusted chimney liner, cracked heat exchanger, and short cycles

Illustrative example — not NI Hvac's work
Before upgrade BEFORE
After upgrade AFTER
Key Upgrade Specifications
  • Licensed, code-compliant installation
  • Upfront pricing agreed before work begins
  • Work area cleaned up on completion
Warranty discussed with your estimate
Request This Upgrade → 📞 Dispatch

Multi-Zone Ductless Climate System

Noisy window AC units vibrating in frame with drafty seasonal window gaps

Illustrative example — not NI Hvac's work
Before upgrade BEFORE
After upgrade AFTER
Key Upgrade Specifications
  • Licensed, code-compliant installation
  • Upfront pricing agreed before work begins
  • Work area cleaned up on completion
Warranty discussed with your estimate
Request This Upgrade → 📞 Dispatch
NI Hvac team and work vehicle in Lowell
● Serving Lowell, MA & Nearby Communities
Local Heritage & Values

About NI Hvac

Founded on principles of honest craftsmanship, upfront communication, and technical excellence, NI Hvac has served the Lowell area with dependable residential and commercial services.

Our team is fully licensed, insured, and background-checked. We specialize in high-efficiency heat pump mini-split conversions, Mass Save rebate compliance, steam boiler tune-ups, ensuring your property remains protected and efficient year-round.

Fully Licensed & Insured
Verified Local Contractor
Upfront Itemized Pricing
Zero Travel Surcharges

Local Coverage Across Lowell, MA

Our licensed service trucks are stationed locally to provide rapid response times throughout Lowell, Chelmsford, Billerica, Tewksbury, Dracut, Lawrence, Andover.

Guaranteed Dispatch Radius
Lowell & Surrounding Municipalities
No long-distance travel fees for standard service calls within our core operating territory.
Connect With Us

Request an Upfront Estimate

Reach out directly by phone or submit your project details below for a prompt, itemized response.

Direct Phone Line
(978) 746-4999
Physical Service Base
909 Lawrence St, Lowell, MA 01852
Operational Hours
Monday: Open 24 hours, Tuesday: Open 24 hours, Wednesday: Open 24 hours, Thursday: Open 24 hours, Friday: Open 24 hours, Saturday: Open 24 hours, Sunday: Open 24 hours

Fast Project Estimate

Fill out the form below and our team will follow up promptly.