BestComfortHVAC - 24/7 heating and cooling in Joliet and Chicago
24/7 Heating & Cooling
Stay Comfortable Year-Round Same Price Day or Night
Furnace out at 2 a.m. in January? AC quit in a July heat wave? Licensed Best Comfort technicians are on call around the clock across Joliet, Chicago and the south-west suburbs.
1504 Essington Rd, Joliet IL
Proudly serving the Chicago - Joliet area
No surprise fees. Ever.
Nights, weekends and holidays cost the same as a Tuesday morning. You get a written, flat-rate price before we pick up a tool, and the diagnostic fee is waived when you go ahead with the repair.
See everything we fixBuilt for every season
Best Comfort HVAC Joliet Office installs and maintains high-efficiency heating and cooling systems across Joliet, IL - with upfront pricing, clean workmanship and same-day emergency response.
- Summer readyAC tune-ups before the first 90ยฐ day, coil cleaning, refrigerant checks.
- Polar-vortex proofFurnace and boiler safety checks, CO testing, heat exchanger inspection.
- Healthier airHumidity control for dry Chicago winters and sticky lake-effect summers.


Heating, cooling & clean air
Professional service from Best Comfort HVAC Joliet Office - residential and commercial.
Air Conditioning
Expert AC installation, repair and maintenance to keep you cool all summer long.
- Same-day AC repair
- Load-calculated new systems
- Coil & drain cleaning
Heating Systems
Reliable heating including furnaces, heat pumps and boiler services.
- Furnace & boiler repair
- CO & safety testing
- Radiator & hydronic work
Maintenance Plans
Preventive maintenance that extends system life and improves efficiency.
- Spring + fall tune-ups
- Up to 20% off repairs
- Priority scheduling
Emergency Repairs
24/7 emergency service for urgent heating and cooling breakdowns.
- Live dispatcher 24/7
- Fully stocked trucks
- Same price day or night
Water Heaters
Tank and tankless water heater installs, flushes and repairs.
- Tank & tankless
- Same-day replacement
- Permits handled
Indoor Air Quality
Cleaner, better-balanced air for allergy seasons and dry winters.
- UV-C & media filters
- Whole-home humidifiers
- Duct cleaning
Clip a coupon, save today
Tap a code to copy it, then mention it when you call or book online.
OFFAny HVAC service callOne coupon per visit.SAVE50
OFFAny Best Comfort repair over $500Not valid with other offers.SAVE100
OFFHVAC repairsResidential customers.SAVE99
OFFNew system installationFurnace, AC or heat pump.SAVE149
Offers cannot be combined. Valid in our service area. Ask your dispatcher for current expiry dates.
Where we go & what we fix
Cook, DuPage, Grundy and Will counties - from the Chicago city limits south to Morris and Manhattan.
- Tank water heaters
- Tankless water heaters
- Sump & ejector pumps
- Water softeners
- Gas lines
- Water lines
- Drain lines
- Water heaters
- Tankless descaling
- Sump pumps
- Softeners
- Gas leaks
- Leaks & bursts
- Drains
- Fixtures
- Hot water boilersInstall, service and repair - the heart of most Chicago two-flats.
- Steam boilersInstall only - skim, pressure and pipe-pitch set-up included.
- Combi boilersInstall only - heat and hot water from one wall unit.
- Tank (40-75 gal)Atmospheric and power-vent, gas or electric.
- TanklessEndless hot water, wall-mounted, up to 0.96 UEF.
Our furnace quit at 2 a.m. during the January cold snap. Best Comfort had a tech at our door within the hour, and the price was exactly what they quoted on the phone.
They replaced the 25-year-old AC in our bungalow in one day, pulled the permit and did the rebate paperwork for us. Upstairs finally feels the same as downstairs.
We use them for the rooftop units on our two restaurants. Priority dispatch, clear photo reports and no surprises on the invoice. Easy to recommend.
Questions? Answered.
No. Our price is the same day or night, weekday or holiday. You get a written flat-rate price before any work starts, and the diagnostic fee is waived if you go ahead with the repair.
Once a year, ideally in September or October before the first hard freeze. A tune-up checks the heat exchanger for cracks, tests for carbon monoxide, cleans the flame sensor and clears the PVC vent pipes that snow drifts love to block.
It depends on more than square footage. We run a room-by-room load calculation (Manual J) that looks at insulation, windows and which way the house faces. An oversized unit short-cycles and leaves the house clammy, which is common in older Chicago bungalows.
Today's cold-climate heat pumps keep heating well below zero, and we usually pair them with your existing gas furnace as a dual-fuel system. The furnace only takes over on the very coldest nights.
Yes. Hot-water and steam boilers are everyday work for us across Chicago two-flats, greystones and bungalows - from bleeding radiators to full boiler replacements.
Yes. We check which ComEd and Nicor Gas rebates your new equipment qualifies for, fill in the paperwork, and offer monthly payment plans. See financing options.
Talk to a real person
No phone trees, no call centers. A Best Comfort dispatcher in Joliet answers every call, 24 hours a day.
- Call or text815-556-0660
- EmailContactUs@bestcomforthvac.com
- Visit1504 Essington Rd #3, Joliet, IL 60435
Ready for service?
Our team is standing by for every heating and cooling need. Call now for fast, reliable service - the same price day or night.
- Emergency? A real person answers, day or night
- Upfront, flat-rate price before any work starts
- Stocked trucks - most repairs finished on the first visit
- Workmanship backed in writing
