Barrington, IL Heating & Cooling

HVAC for Larger Homes in Barrington, IL

Barrington homes tend to be bigger, older and more complicated than the suburban average. Multiple zones, additions that were never balanced, and equipment sized by guesswork a decade ago. Those are sizing problems, not catalog problems.

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  • Multi-zone systems
  • Manual J load calculation available on request
  • Boilers & radiant
  • 24/7 emergency service

What Barrington Homes Actually Need

Measured

Airflow Diagnostics

When one wing never holds temperature, the cause is usually static pressure or duct leakage rather than the furnace. We measure it with Minneapolis DuctBlaster equipment instead of guessing.

Right-sized

Multi-Zone Replacement

A large house often runs two or three systems. Replacing them well means sizing each zone on its own, not one number for the whole building.

Additions covered

Ductless Mini-Splits

Sunrooms, converted attics and additions that the main system never reached are what ductless is for. Daikin TD-7 and TD-10 trained.

Boilers, Radiant and Multi-System Homes in Barrington

A house with two furnaces, a boiler for the radiant floor and a mini-split in the addition is normal here. We treat each system on its own merits.

When a two-furnace house calls about one of them, we assess that system on its own age and condition and tell you which one is actually the problem; nobody has to replace both at once. When a replacement is due, each zone is sized on its own, the equipment is AHRI-matched, and the quote lists it by model with any discount already subtracted. Read more on furnace replacement, AC replacement and heat pump replacement.

Hot-water boilers and radiant systems get the same attention: pressure, circulators, zone valves, controls, relief valve, expansion tank and venting all get checked before we name a part. See boiler repair, boiler maintenance and boiler replacement, where a 95% AFUE condensing boiler or a combination boiler takes the Nicor Gas discount. If your home is on propane rather than natural gas, tell us when you call, because it changes both the equipment and the rebates. For the addition or the converted attic, ductless is usually the answer, and a whole-home cold-climate heat pump paired with the existing furnace as dual fuel is worth pricing when the air conditioner is due.

Barrington HVAC Services

Furnace repair, installation and replacement, air conditioning, heat pumps including cold-climate systems, boilers, whole-home humidifiers, dehumidifiers and filtration, seasonal maintenance and 24/7 emergency service across Barrington and the unincorporated areas around it.

24/7 no heat

Furnace Repair in Barrington

No-heat calls answered around the clock on any brand, with a flat-rate repair price approved before the work starts.

Nicor discounts

Furnace Replacement in Barrington

Replacement quotes sized to your home, with the Nicor Gas furnace discount already taken off the invoice for homes on Nicor Gas.

All brands

AC Repair in Barrington

Capacitors, contactors, fan motors, refrigerant leaks and the rest, diagnosed and priced before anything is replaced.

Free quotes

AC Replacement in Barrington

Free written quotes for right-sized R-32 central air, with the old condenser and coil hauled away.

ComEd discounts

Heat Pump Installation in Barrington

Cold-climate inverter heat pumps sized to your home’s heating load, with ComEd’s instant discount taken off the invoice at installation.

Hot-water & steam

Boiler Repair in Barrington

Cold radiators, pressure problems, kettling and lockouts on any brand of residential boiler.

No ductwork

Ductless Mini-Split Installation in Barrington

Daikin single- and multi-zone systems for the rooms and homes the ductwork never reached.

AprilAire

Indoor Air Quality in Barrington

Whole-home humidifiers, dehumidifiers and media air purifiers installed on your existing furnace or air handler.

Any hour

Emergency Furnace Repair in Barrington

No heat overnight, on a weekend or on a holiday is handled 24/7 at (847) 224-2420.

Any hour

Emergency AC Repair in Barrington

An air conditioner that quits in the middle of a heat wave gets the same 24/7 response.

$240 / year

Maintenance Plan in Barrington

A spring AC or heat pump tune-up and a fall furnace tune-up, priority scheduling, 5% off services and one free business-hours service call.

We also handle air handler repair, smart thermostat installation, humidifier installation, dehumidifier installation, air purifier installation, duct cleaning and dual-fuel heat pump and furnace systems in Barrington.

How Repairs and Replacements Are Priced in Barrington

Every repair call starts with a flat diagnostic fee to find the problem. During office hours (9 a.m. to 5 p.m., Monday through Friday) the service call is $130; weekday evenings after 5 p.m. it is $180, and nights, weekends and holidays are $260. Each includes 30 minutes of travel and 30 minutes of diagnostics, and parts are extra. Once we know what failed, you get a flat-rate repair price in writing, and nothing happens until you approve it. There is no hourly meter running while we look for parts, and the price you approve is the price on the invoice.

After-hours and emergency calls are priced higher than business-hours calls. We tell you the difference on the phone before anyone is dispatched, so you can decide whether tonight or tomorrow morning makes more sense. Either way, (847) 224-2420 is answered 24/7, and we repair all major brands of furnace, air conditioner, heat pump and boiler, not just the ones we install.

Replacement quotes are free, written and include any utility discount you qualify for. We size the equipment to the house as it is today rather than the old label (a Manual J load calculation is available when it’s needed, requested or required), match the indoor and outdoor units by AHRI listing, and haul the old equipment away. Where the Village of Barrington, or the county for an unincorporated address, requires a mechanical permit for the replacement, we file it and the work gets inspected. If the timing is wrong for a big purchase, you can prequalify for financing in about 2 minutes with no impact to your credit score.

Rebates in Barrington

Barrington is ComEd territory, so heat pump instant discounts are available here. ComEd heat pump instant discounts run $900 to $2,000 on a qualifying ducted heat pump depending on efficiency tier and heating capacity, up to $2,000 at 2.5 heating tons or more, and $500 or $1,000 on a qualifying ductless system. A qualifying ENERGY STAR smart thermostat we install adds $75. Nothing to apply for; it is taken off the invoice. See ComEd Instant Discounts.

If your home is on Nicor Gas, furnace and boiler discounts apply as well, and each utility’s discount applies to its own equipment on a dual-fuel system. For homes on Nicor Gas, the furnace discount is $225 on a 97%+ AFUE furnace or $150 at 95%, rising to $275 or $200 with a qualifying smart thermostat on the same invoice. Heating boilers at 95% AFUE earn $350 and combination boilers $500. Every one of them comes off the invoice at installation, with no application to file. See Nicor Gas Instant Discounts.

Barrington HVAC FAQs

My house has two furnaces. Do I have to replace both at once?

No. We assess each system on its own age and condition, and tell you which one is actually the problem.

Do ComEd heat pump discounts apply in Barrington?

Yes, for ComEd residential customers on the eligible list. The discount is applied to your invoice at installation.

Why is one part of the house always colder?

Usually airflow, not capacity. We measure static pressure and duct leakage before recommending equipment.

Do you cover unincorporated areas around Barrington?

Yes. Tell us when you call if your home is on propane rather than natural gas, because it changes both the equipment and the rebates.

Do after-hours calls in Barrington cost more?

Yes. After-hours and emergency service calls are priced higher than business-hours calls, and we quote the difference on the phone before anyone is dispatched. The diagnostic fee is flat, and the repair itself is a flat-rate price you approve before work starts.

Do you service all brands, and how do I book?

We repair every major brand of furnace, air conditioner, heat pump and boiler, and install Amana, Daikin and AprilAire equipment. Call (847) 224-2420 any hour, or book online for a business-hours visit.

Other Towns We Serve

Don’t see your town? Call (847) 224-2420. View all service areas.

A Contractor That Measures Before It Recommends

Sizing to the house, airflow testing and honest repair-or-replace advice on larger Barrington homes.

Call (847) 224-2420
Book Online

Planning a replacement? Request a free quote or see financing options.

Discount amounts reflect the 2026 Nicor Gas Energy Efficiency Program for qualifying equipment installed January 1 through December 31, 2026, and are subject to change or cancellation due to funding limits. Rest Assured HVAC LLC is an independent contractor and is not affiliated with or endorsed by Nicor Gas.

Discount amounts reflect the 2026 ComEd Energy Efficiency Program for qualifying equipment and are subject to change or cancellation due to funding limits. Rest Assured HVAC LLC is an independent contractor and is not affiliated with or endorsed by ComEd.