Private Preview Prepared for JF HVAC Services · Questions? Call Eddie: (857) 208-7241
Fast Local Dispatch: Serving Waltham, MA & Nearby Areas
5.0 Stars on Google (21 verified reviews)
Emergency Priority

JF HVAC Services

24-hour HVAC expertise from a father-and-son team serving Waltham, Newton, Lexington & surrounding communities — same-day response, honest diagnosis, fair upfront pricing.

Fully Licensed & Insured
Upfront Pricing
Fast Local Response
JF HVAC Services 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 Waltham properties.

24/7 Emergency AC & Heating Repair

24/7 Emergency AC & Heating Repair Service

When your AC fails during an August heat wave or your heat cuts out on a frozen Sunday night, a licensed technician answers and arrives within hours — not next week. We service all major brands, from failed condenser capacitors to no-heat furnace and boiler lockouts, with repair trucks stocked for first-visit fixes.

Service Specialties

Core Trade Capabilities

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

24/7 Emergency AC & Heating Repair

When your AC fails during an August heat wave or your heat cuts out on a frozen Sunday night, a licensed technician answers and arrives within hours — not next week. We service all major brands, from failed condenser capacitors to no-heat furnace and boiler lockouts, with repair trucks stocked for first-visit fixes.

Heat Pump & Mini-Split Conversions

Replace aging central air or window units with ductless mini-split and high-efficiency heat pump systems sized for New England's four-season climate. We handle load calculations, line-set routing for older Waltham homes, and full Mass Save rebate documentation to maximize your incentives.

Steam & Hot Water Boiler Tune-Ups

Many Waltham, Belmont, and Lexington homes still rely on steam or hydronic boilers that demand specialized care. We clean burners, test low-water cutoffs and pressure controls, bleed radiators, and verify safe combustion so your system runs efficiently all winter.

Seasonal Maintenance & System Cleaning

Annual precision tune-ups: coil cleaning, refrigerant charge verification, condensate line flushing, electrical testing, and airflow measurement. Regular maintenance prevents mid-summer breakdowns, lowers energy bills, and extends equipment life by years.

Physical Proof of Work

Visual Transformations & Upgrades

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

Cold-Climate Heat Pump Modernization

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

Illustrative example — not JF HVAC Services'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

High-Efficiency Furnace Modernization

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

Illustrative example — not JF HVAC Services'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

Multi-Zone Ductless Climate System

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

Illustrative example — not JF HVAC Services'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
Customer Testimonials

Verified Feedback from Neighbors in Waltham

Real feedback from local property owners who trusted JF HVAC Services for reliable, high-quality service.

★★★★★

“Came within hours of me reaching out on a Sunday morning. Had my AC up and running in no time for a couple hundred bucks. Will definitely be using them moving forward for all my HVAC needs!”

Hilary Bloom Verified Local Customer
★★★★★

“Jose came out as promised On a Sunday night in August when our AC went out suddenly. I called and he picked up - although I was a new customer he came right out and fixed the issues outside at the condenser and cleaned the whole unit well after dark AC back and better than before. Honest, timely, professional, knowledgeable and straightforward I will be working with them moving forward for our needs in this old house!”

C H Verified Local Customer
★★★★★

“I called when our AC broke on an 95 degree day and they came same day within a few hours. Everywhere else I called asked me 1000 questions then couldn’t come for over a week. They then fixed it super efficiently.”

Ashley Imperiale Verified Local Customer
JF HVAC Services team and work vehicle in Waltham
Serving Waltham, MA & Nearby Communities
Local Heritage & Values

About JF HVAC Services

Founded on principles of honest craftsmanship, upfront communication, and technical excellence, JF HVAC Services has served the Waltham 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
5.0-Star Google Reputation
Upfront Itemized Pricing
Zero Travel Surcharges

Local Coverage Across Waltham, MA

Our licensed service trucks are stationed locally to provide rapid response times throughout Waltham, Newton, Lexington, Belmont, Weston, Lincoln, Watertown, Woburn.

Guaranteed Dispatch Radius
Waltham & 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
(781) 472-0094
Physical Service Base
308 Moody St, Waltham, MA 02453
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.