HVAC Maintenance in Greater Firestone Area
Need reliable HVAC maintenance now? Our licensed technicians tune, clean, and test your system so it runs safely and efficiently. We serve the Greater Firestone Area, including Denver, Aurora, and Boulder. Homeowners trust our upfront pricing and our 4.7 rating from 8,435 reviews. As a BBB accredited team, we focus on fixes that last and clear communication. Call (303) 468-2294 or schedule online today.

Each image is a real worksite photo, reflecting the quality and dedication in every project.
Special Offers & Promotions
Two free furnace/air conditioner filter changes with Home Care Club
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$50 Off Work Performed* (shown on Furnace Cleaning page)
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Broomfield AC Maintenance - $50 Off Work Performed*
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Why Choose Us
What Our Customers Say
"A very thorough HVAC system inspection. Replacement was offered but not pressured."
"He explained everything thoroughly and we will request him next time for HVAC maintenance."
"On time and gets the job done right the first time. I rely on them."
Answers to Common Questions
View All FAQsWhat Is the Average Furnace Maintenance Cost for Homeowners?
The average furnace maintenance cost for homeowners is not a fixed number because it depends on your system’s condition and the exact tune-up tasks completed during the visit. Most of the cost is labor for cleaning and a full system diagnostic, and any minor repairs found during testing are added only if you approve them. A standard visit typically covers filter changes, system cleaning, thermostat programming, and a full checkup of safety and performance. Our team performs these tune-ups across the south metro, including Highlands Ranch. Home Care Club members receive two free filter changes and a 10% repair discount.
Common cost drivers at a glance:
- Depth of cleaning needed and accessibility of the furnace
- Findings from the diagnostic (e.g., ignition or control adjustments)
- Add-on services requested, such as ductwork or indoor air quality work
- System age and prior maintenance history
Final pricing is confirmed after an on-site inspection, so schedule maintenance before heating season to avoid rushed decisions.
Updated: 2026-03-09
Need help in Highlands Ranch, CO? Call (720) 994-7055 or book online.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSURoLWNyT0VREAE!2m1!1s0x0:0xc3f2ee6ae4a3fedf!3m1!1s2@1:CIHM0ogKEICAgIDh-crOEQ%7CCgwI7P-_ogYQqN6PnwE%7C?hl=en-US[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUQ5b3EtQ2RBEAE!2m1!1s0x0:0xc3f2ee6ae4a3fedf!3m1!1s2@1:CIHM0ogKEICAgID9oq-CdA%7CCgwI-rDNrwYQ6J3lyAE%7C?hl=en-US[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUNhdWNxVlpnEAE!2m1!1s0x0:0xc3f2ee6ae4a3fedf!3m1!1s2@1:CIHM0ogKEICAgICaucqVZg%7CCgwIvtOgkwYQ8Nn15wI%7C?hl=en-US[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUNIczhQb3dRRRAB!2m1!1s0x0:0xc3f2ee6ae4a3fedf!3m1!1s2@1:CIHM0ogKEICAgICHs8PowQE%7CCgsI86j3tgYQ2K7qIw%7C?hl=en-US[4] https://www.brothersplumbing.com/thornton-furnace-repair/[5] https://www.brothersplumbing.com/westminster-ac-repair/[6] https://www.brothersplumbing.com/thornton-air-purification/[7] https://www.brothersplumbing.com/denver-ductless-mini-split-installation/[8] https://www.brothersplumbing.com/heating/how-to-improve-heating-furnace-efficiency-during-winter/[9] https://www.brothersplumbing.com/plumbing/[10] https://www.brothersplumbing.com/littleton-ac-repair/[11] https://www.brothersplumbing.com/aurora-ac-repair/What Is Preventive Maintenance for HVAC Systems and Why Is It Important?
Preventive HVAC maintenance means scheduled tune-ups, cleaning, and diagnostics that keep your system efficient and reliable. We recommend annual service before summer or winter to reduce breakdowns and extend equipment life in Denver and Thornton.
- Change air filters
- Clean coils and system
- Full system diagnostic
- Program/calibrate thermostat
- Check and charge refrigerant
- Inspect ducts and airflow; recommend repairs
Our Home Care Club adds priority service, a 10% repair discount, two free filter changes, and a 2-year warranty on work (drain work excluded).
Updated: 2025-12-21 00:00:00
Need help in Thornton, CO? Call (720) 994-7055 or book online.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSURPX012NjhnRRAB!2m1!1s0x0:0xc3f2ee6ae4a3fedf!3m1!1s2@1:CIHM0ogKEICAgIDO_Mv68gE%7CCgwIxvz2lQYQ0JrJmAI%7C?hl=en-US[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSURoLWNyT0VREAE!2m1!1s0x0:0xc3f2ee6ae4a3fedf!3m1!1s2@1:CIHM0ogKEICAgIDh-crOEQ%7CCgwI7P-_ogYQqN6PnwE%7C?hl=en-US[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUQtakltNEx3EAE!2m1!1s0x0:0xc3f2ee6ae4a3fedf!3m1!1s2@1:CIHM0ogKEICAgID-jIm4Lw%7CCgwIu6z1mwYQuMaZpAI%7C?hl=en-US[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSURKdGJlSmhnRRAB!2m1!1s0x0:0xc3f2ee6ae4a3fedf!3m1!1s2@1:CIHM0ogKEICAgIDJtbeJhgE%7CCgwI3anqpQYQsLbI8wI%7C?hl=en-US[4] https://www.brothersplumbing.com/littleton-boilers/[5] https://www.brothersplumbing.com/thornton-ac-maintenance/[6] https://www.brothersplumbing.com/denver-furnace-replacement/[7] https://www.brothersplumbing.com/westminster-furnace-repair-replacement/[8] https://www.brothersplumbing.com/wp-json/wp/v2/pages/2155[9] https://www.brothersplumbing.com/erie-plumbers/[10] https://www.brothersplumbing.com/greenwood-village-plumbers/[11] https://www.brothersplumbing.com/thornton-ac-repair/What Is Included in a Typical HVAC Tune-Up Service?
A typical HVAC tune-up includes changing air filters, cleaning the system (including coils), a full system diagnostic, thermostat programming, and checking and charging refrigerant. We also inspect components and ducts (where applicable), check airflow, look for leaks or freezing, and recommend and schedule any needed repairs. Tune-ups apply to AC, furnaces, boilers, and heat pumps across Denver and nearby cities. Home Care Club members receive two free furnace/AC filter changes.
Updated: 2025-12-21 00:00:00
Need help in Thornton, CO? Call (720) 994-7055 or book online.
"Mark W did HVAC maintenance so we’re ready for another Colorado winter!" — Mark W.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSURPX012NjhnRRAB!2m1!1s0x0:0xc3f2ee6ae4a3fedf!3m1!1s2@1:CIHM0ogKEICAgIDO_Mv68gE%7CCgwIxvz2lQYQ0JrJmAI%7C?hl=en-US[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSURoLWNyT0VREAE!2m1!1s0x0:0xc3f2ee6ae4a3fedf!3m1!1s2@1:CIHM0ogKEICAgIDh-crOEQ%7CCgwI7P-_ogYQqN6PnwE%7C?hl=en-US[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUQtakltNEx3EAE!2m1!1s0x0:0xc3f2ee6ae4a3fedf!3m1!1s2@1:CIHM0ogKEICAgID-jIm4Lw%7CCgwIu6z1mwYQuMaZpAI%7C?hl=en-US[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSURKdGJlSmhnRRAB!2m1!1s0x0:0xc3f2ee6ae4a3fedf!3m1!1s2@1:CIHM0ogKEICAgIDJtbeJhgE%7CCgwI3anqpQYQsLbI8wI%7C?hl=en-US[4] https://www.brothersplumbing.com/littleton-boilers/[5] https://www.brothersplumbing.com/thornton-ac-maintenance/[6] https://www.brothersplumbing.com/denver-furnace-replacement/[7] https://www.brothersplumbing.com/westminster-furnace-repair-replacement/[8] https://www.brothersplumbing.com/wp-json/wp/v2/pages/2155[9] https://www.brothersplumbing.com/erie-plumbers/[10] https://www.brothersplumbing.com/greenwood-village-plumbers/[11] https://www.brothersplumbing.com/thornton-ac-repair/What Is Included in a Typical AC Tune Up Service?
A typical AC tune-up includes filter changes, system cleaning, a full diagnostic, thermostat programming, and refrigerant checks. We inspect components, check airflow, look for leaks or freezing, and schedule any needed repairs. Coil cleaning is performed as part of system cleaning. Duct condition may be reviewed where applicable. Annual service is recommended, ideally before summer. Service is available in Denver and Thornton.
Updated: 2025-12-21
Need help in Thornton, CO? Call (720) 994-7055 or book online.
"Mark W did HVAC maintenance so we’re ready for another Colorado winter!" — Mark W.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSURPX012NjhnRRAB!2m1!1s0x0:0xc3f2ee6ae4a3fedf!3m1!1s2@1:CIHM0ogKEICAgIDO_Mv68gE%7CCgwIxvz2lQYQ0JrJmAI%7C?hl=en-US[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSURoLWNyT0VREAE!2m1!1s0x0:0xc3f2ee6ae4a3fedf!3m1!1s2@1:CIHM0ogKEICAgIDh-crOEQ%7CCgwI7P-_ogYQqN6PnwE%7C?hl=en-US[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUQtakltNEx3EAE!2m1!1s0x0:0xc3f2ee6ae4a3fedf!3m1!1s2@1:CIHM0ogKEICAgID-jIm4Lw%7CCgwIu6z1mwYQuMaZpAI%7C?hl=en-US[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSURKdGJlSmhnRRAB!2m1!1s0x0:0xc3f2ee6ae4a3fedf!3m1!1s2@1:CIHM0ogKEICAgIDJtbeJhgE%7CCgwI3anqpQYQsLbI8wI%7C?hl=en-US[4] https://www.brothersplumbing.com/littleton-boilers/[5] https://www.brothersplumbing.com/thornton-ac-maintenance/[6] https://www.brothersplumbing.com/denver-furnace-replacement/[7] https://www.brothersplumbing.com/westminster-furnace-repair-replacement/[8] https://www.brothersplumbing.com/wp-json/wp/v2/pages/2155[9] https://www.brothersplumbing.com/erie-plumbers/[10] https://www.brothersplumbing.com/greenwood-village-plumbers/[11] https://www.brothersplumbing.com/thornton-ac-repair/How much does an HVAC tune up typically cost for homeowners?
An HVAC tune-up cost is confirmed after an on-site evaluation, because pricing depends on your system, its condition, and what the visit includes. Most variation comes from whether the visit is a basic seasonal check or if the technician needs to address performance issues discovered during diagnostics. Our team typically inspects, cleans, and tests the system, then explains any findings before work continues. We routinely handle seasonal tune-ups across the Front Range and can service homes in Frederick. Members of our Home Care Club receive discounts and two free filter changes.
Price usually changes when these apply:
- Refrigerant needs to be added or adjusted after pressure checks.
- Deep coil or blower cleaning is required to restore airflow.
- Equipment is hard to access, such as attic or rooftop placements.
- Repairs are approved after the diagnostic pinpoints failing parts.
If your system runs but is due for service, book a tune-up; if you have no heat or cooling, shut the system off and call a technician.
Updated: 2026-03-24
Need help in Frederick, CO? Call (720) 994-7055 or book online. “We couldn’t be happier with our experience with Brothers… skilled technicians… prompt in scheduling our follow up… we will definitely make Brothers our go-to for routine maintenance.” — Isaac W.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUR1aDVPUTR3RRAB!2m1!1s0x0:0xc3f2ee6ae4a3fedf!3m1!1s2@1:CIHM0ogKEICAgIDuh5OQ4wE%7CCgsIvoa9oQYQ8KnYfA%7C?hl=en-US[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSURoLWNyT0VREAE!2m1!1s0x0:0xc3f2ee6ae4a3fedf!3m1!1s2@1:CIHM0ogKEICAgIDh-crOEQ%7CCgwI7P-_ogYQqN6PnwE%7C?hl=en-US[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUMzN3NXMEN3EAE!2m1!1s0x0:0xc3f2ee6ae4a3fedf!3m1!1s2@1:CIHM0ogKEICAgIC37sW0Cw%7CCgsI0-ipuQYQ-IykCg%7C?hl=en-GB[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUQtakltNEx3EAE!2m1!1s0x0:0xc3f2ee6ae4a3fedf!3m1!1s2@1:CIHM0ogKEICAgID-jIm4Lw%7CCgwIu6z1mwYQuMaZpAI%7C?hl=en-US[4] https://www.brothersplumbing.com/englewood-boilers/[5] https://www.brothersplumbing.com/thornton-ac-maintenance/[6] https://www.brothersplumbing.com/broomfield-furnace-repair/[7] https://www.brothersplumbing.com/denver-swamp-coolers/[8] https://www.brothersplumbing.com/heating/how-to-improve-heating-furnace-efficiency-during-winter/[9] https://www.brothersplumbing.com/littleton-ac-repair/[10] https://www.brothersplumbing.com/aurora-ac-repair/[11] https://www.brothersplumbing.com/greenwood-village-heating/How much does HVAC maintenance typically cost for homeowners?
HVAC maintenance costs vary by your system and needed tasks. We confirm pricing after an on-site diagnostic. A typical visit includes filter changes, system cleaning, a full diagnostic, thermostat programming, and refrigerant checks; repairs are quoted before work. Current $50 off AC maintenance coupons are available in Denver, Thornton, and Westminster. Our Home Care Club adds two free filter changes, 10% off repairs, priority service, and a 2-year workmanship warranty. We serve Denver and Thornton.
Updated: 2025-12-21 00:00:00
Need help in Thornton, CO? Call (720) 994-7055 or book online.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSURPX012NjhnRRAB!2m1!1s0x0:0xc3f2ee6ae4a3fedf!3m1!1s2@1:CIHM0ogKEICAgIDO_Mv68gE%7CCgwIxvz2lQYQ0JrJmAI%7C?hl=en-US[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSURoLWNyT0VREAE!2m1!1s0x0:0xc3f2ee6ae4a3fedf!3m1!1s2@1:CIHM0ogKEICAgIDh-crOEQ%7CCgwI7P-_ogYQqN6PnwE%7C?hl=en-US[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUQtakltNEx3EAE!2m1!1s0x0:0xc3f2ee6ae4a3fedf!3m1!1s2@1:CIHM0ogKEICAgID-jIm4Lw%7CCgwIu6z1mwYQuMaZpAI%7C?hl=en-US[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSURKdGJlSmhnRRAB!2m1!1s0x0:0xc3f2ee6ae4a3fedf!3m1!1s2@1:CIHM0ogKEICAgIDJtbeJhgE%7CCgwI3anqpQYQsLbI8wI%7C?hl=en-US[4] https://www.brothersplumbing.com/littleton-boilers/[5] https://www.brothersplumbing.com/thornton-ac-maintenance/[6] https://www.brothersplumbing.com/denver-furnace-replacement/[7] https://www.brothersplumbing.com/westminster-furnace-repair-replacement/[8] https://www.brothersplumbing.com/wp-json/wp/v2/pages/2155[9] https://www.brothersplumbing.com/erie-plumbers/[10] https://www.brothersplumbing.com/greenwood-village-plumbers/[11] https://www.brothersplumbing.com/thornton-ac-repair/How Much Does Annual HVAC Maintenance Typically Cost Homeowners?
Annual HVAC maintenance costs vary by system type, access, and the scope of the tune-up, and a technician will confirm pricing on site. You can save with current $50 off AC maintenance offers in Thornton, Westminster, and Denver (see coupons; expiration dates run through December 2025). Home Care Club members also get two free furnace/AC filter changes, priority service, a 10% discount on repairs, and a 2-year warranty on work. Service is available across the Denver metro, including Thornton and Denver.
Updated: 2025-12-21
Need help in Thornton, CO? Call (720) 994-7055 or book online.
"Mark W did HVAC maintenance so we’re ready for another Colorado winter! I highly recommend them for all plumbing, heating and electric needs." — Mark W.
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Service Areas We Cover
What areas do you serve for hvac maintenance?
We serve the Greater Firestone Area, with frequent visits to Denver, Aurora, and Boulder. Our technicians cover many nearby communities. See the full list below.