Maintenance Memberships Available in Sudbury

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Maintenance Memberships & More

The best way to protect and lengthen the lifespan of any heating or cooling appliance is to make sure it’s regularly serviced by a professional. Our annual preventive maintenance memberships will keep your system in top condition, lower your operating costs, help you avoid costly breakdowns, and give you preferred service in the event of an emergency. All of this extra security is available for one low annual or monthly payment!

Memberships are available on furnaces, fireplaces, boilers, air conditioners, heat pumps and water heaters. We also offer combo packaging for heating and cooling, heating and water heating, or all three!


18 Point Maintenance & Safety Inspection
  1. Check thermostat
  2. Check and adjust safety controls
  3. Clean burners
  4. Change or clean filter
  5. Inspect heat exchanger
  6. Clean and adjust pilot assembly
  7. Analyze for efficiency
  8. Check temperature rise
  9. Analyze output and test for carbon monoxide
  10. Lubricate all moving parts
  11. Check for gas/oil leaks in furnace, tank & lines
  12. Turn exposed dampers to heating as required
  13. Venting
  14. Check manifold or oil pressure
  15. Clean drains if necessary
  16. Clean blower
  17. Check thermocouple/cad cell/ flame sensor
  18. Check for loose wires


14 Point Maintenance & Safety Inspection
  1. Check and adjust thermostat
  2. Check and adjust safety
  3. Clean burners
  4. Clean pilot
  5. Inspect heat exchanger
  6. Clean glass
  7. Check log placement, adjust if necessary
  8. Adjust burner flame
  9. Check for gas leaks
  10. Venting
  11. Check manifold pressure
  12. Clean blower/fan
  13. Check thermocouple
  14. Check for loose wires


12 Point Maintenance & Safety Inspection
  1. Check and clean condenser coil
  2. Check condenser voltage & amperage
  3. Check electrical connections
  4. Check the safety of the unit
  5. Check blower components
  6. Check air filters
  7. Check and clean condensate drain
  8. Check thermostat
  9. Check temperature drop
  10. Lubricate all moving parts where required
  11. Check for correct air flow
  12. Check refrigerant lines for damage


Why Choose Us?


No Loopholes™

We guarantee 100% satisfaction for up to 2 years from the furnace installation date. No loopholes, guaranteed.


No Hassles™

We’ll cover the repairs within 24-hours if your furnace breaks down within 2 years of installation, or give you $1,000 for your troubles. No hassles, guaranteed.


Just Right™

We’ll make it right if your furnace is too hot or too cold, including a complete replacement if necessary. Just right, guaranteed.


We Respect You™

We’ll keep your home clean and damage-free, or you’ll get our full, 5-year Just Right™ Check Up Protection Plan for free. We respect you, guaranteed.

Genuine Service

All our installations are backed by guarantees to leave you happy in your home.

Fast & Reliable

We offer true twenty-four-hour service, with no additional charges on holidays or after hours.

Tried & True

We have over 30 years of experience in serving local homes and families.

Certified Expertise

All of our technicians go through extensive training and background checks.

Friendly Faces

Locally based and operated, we appreciate our role in our community.

Real Reviews

We have a 4.7 star rating on Google and an 87% rating on HomeStars.

What Homeowners Say About 669-Heat

"The gentleman that came to do the work called ahead of time and asked if it was ok to park in the yard, was very courteous when he showed up was very polite professional and clean made sure to wear his slippers every time he came in from outside. He was very efficient and did not cut corners and made sure to double check all his work. Very professional, wished me well and to have a nice weekend! I would definitely recommend them and will definitely used them again in the future"

Stephen Martin - Google Review

"Having issue with our air conditioner, we called 699 and they sent a tech out in less than 2 hours. Mr. Cranston was very polite and professional. He helped us out in no time. Thank you very much for your service."

Tina - HomeStars Review

Book a Home HVAC Service With the Pros at 669-Heat

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