No heat in the middle of the night
Overnight heat loss in winter is the call that comes in most. Any hour works for the call, and the phone is answered.
After hours, weekends, holidays — the phone is answered around the clock
24 Hour HVAC Denver, Any Hour
A furnace that quits at 2 a.m. in January and an AC that dies during a July heat wave have one thing in common: neither can wait for morning. Lion Tech Home Services answers the phone at any hour, so a Denver homeowner can describe the failure and arrange a visit while the house is still cooling down or heating up. Call (720) 806-7634.
Call any time
Call to book
Call (720) 806-7634 at any hour and describe the failure. Lion Tech Home Services answers around the clock, including nights, weekends, and holidays.
Call Now (720) 806-7634 → Open 24 hours · 7 days a week
Careful work. Honest options.
About this service
24-Hour HVAC Repair in Denver: How After-Hours Help Works
After-hours repair means a visit outside ordinary working hours for a heating or cooling failure that cannot sit until morning: late at night, in the early hours, on a weekend, or on a holiday. Lion Tech Home Services is open 24 hours, 7 days a week, so the person who answers is the one who arranges the visit.
A house cools quickly once the furnace stops in January, and pipes are the quiet casualty. An AC that fails on a Saturday in July leaves bedrooms unusable by evening. Calling after hours starts with the symptoms and the simple checks, then moves to what to do while waiting and when the visit will happen for the failure described.
- ✓ No heat in the night
- ✓ No cool on weekends
- ✓ Phone answered at any hour
- ✓ Open 24 hours, every day
What's included
What Our After-Hours Repair Covers
Night work gets the same testing as daytime work, carried out with lights and instruments suited to a dark house.
✓
No-heat calls
A furnace, boiler, or heat pump that stopped overnight gets power, controls, ignition, and safety switches tested in order until the fault shows itself.
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No-cool calls
An AC or heat pump that quit cooling on a hot evening gets power, controls, refrigerant, and airflow checked, so a leak is not mistaken for a control fault.
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Systems that will not start
A system silent at the thermostat gets its power path and controls worked through step by step, starting where a dead system most often fails.
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Water leaking from a unit
A blocked drain or a frozen coil sends water where it should not go. The system is switched off first, then the blockage or the ice is found and cleared.
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Strange noises or smells
Grinding, buzzing, or a burning smell means the system stays off until it is looked at. The visit is arranged around that instruction, not after it.
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Safety routing first
A gas smell or a carbon monoxide alarm changes the order entirely: leave the house and call 911 and the gas company first, before any HVAC work is discussed.
How it works
What Happens When You Call After Hours
01
Call any hour
Call (720) 806-7634 at whatever hour the failure happens. Nights, weekends, and holidays are answered the same as weekdays.
02
Describe the failure
Say what the system is doing or has stopped doing, and when it started. Gas smells and alarms are asked about before anything else.
03
Simple checks
The thermostat, the breakers, and the filter are talked through on the call, because those three checks explain a dead system more often than expected.
04
What to do until the visit
While waiting, the advice fits the season: slowing frozen pipes in winter, or ventilating once outside air cools in summer.
05
Repair and test
The fault is explained, the repair is made, and the system is run to confirm it holds before the visit ends.
Tools & methods
Tools and Methods We Use
Night calls carry the daytime instruments, plus light for attics, basements, and outdoor units after dark.
Multimeter
Reads power, controls, and safety circuits in minutes, narrowing an electrical fault without swapping parts blindly.
Manifold gauge set
Shows refrigerant pressures on AC and heat pump calls, separating a leak from a control or airflow problem.
Thermometer and airflow checks
Supply and return readings show whether heat is actually moving, rather than air simply circulating.
Combustion check
Checks burner operation and venting wherever a gas furnace or boiler is part of the call.
Leak detector
Tests gas and refrigerant joints for leaks before a system is started again.
Work lights
Lights attics, basements, and outdoor units so a night visit is worked on properly, not by torchlight guesswork.
Typical jobs
Before and After
A furnace that quit at midnight
Before
A January night, a furnace silent, and a house losing heat hour by hour. The household rang in the night and kept taps dripping while they waited.
After
A failed flame sensor was the cause. Cleaned and tested, the furnace fired again and the house was warm before morning.
An AC that died on a Saturday
Before
A Saturday afternoon in July, an AC dead, the house climbing into the 80s, the outdoor unit silent.
After
A tripped breaker and a failed capacitor explained it. With the capacitor changed, the system cooled the house that same evening.
A heat pump iced over on a Sunday
Before
A Sunday, a heat pump iced over, the house refusing to warm while auxiliary heat ran without pause.
After
The defrost control had failed. Replaced, the unit cleared its ice and carried the house again.
Problems we solve
Problems After-Hours Repair Solves
The worst hours are when heating and cooling most often fail. These are the calls that come in after dark.
Ask a pro →↗
No cool on a hot evening
An AC that gives up as a hot evening drags on leaves a house unlivable by bedtime. Describe the symptoms on the call and the visit is arranged around them.
A system that trips the breaker
A breaker that trips over and over points at a failing motor or compressor. Switch the system off and call, instead of resetting it again.
Water leaking at night
A blocked drain or a frozen coil can leak unseen through the night. Switch the system off, clear what water can be reached, and call.
About Lion Tech
Denver HVAC, Open Around the Clock
Lion Tech Home Services works from 7575 E 29th Pl #4052 in Denver, answering after-hours repair calls around the clock.
Customer reviews
What Denver Customers Say
Lion Tech Home Services holds a 5.0-star rating from 11 Google reviews.
★★★★★
“Martin does great work, is very transparent about costs, and most importantly backs up his work and will double back if needed without a question. I'll absolutely be using Lion Tech again when I need help around my homes.”
DE
Dominic EastGoogle review
✓ VerifiedYes. The phone is answered 24 hours a day, 7 days a week, so a call at 2 a.m. reaches Lion Tech Home Services the same as a call at 2 p.m.
No heat in winter, no cool in a heat wave, water leaking from a unit, or a system that will not start. A gas smell or a carbon monoxide alarm comes first: leave the house and call 911.
In winter, keep taps dripping and open the cabinet doors under sinks to slow frozen pipes. In summer, open windows once the air outside has cooled. Switch the system off if it grinds or smells of burning.
Thermostat setting, breakers, and filter. Those three explain a dead system more often than people expect. With a gas smell, skip them entirely, leave, and call 911.
Ready when you are
Call Any Hour — We Answer
Call (720) 806-7634 at any hour of the day or night. Lion Tech Home Services is open 24 hours, 7 days a week, and the phone is answered around the clock.
Call (720) 806-7634 →
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Contact Lion Tech Home Services
Lion Tech Home Services, Denver — call (720) 806-7634, open 24 hours.