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Northbrook · Downtown Northbrook · Techny · Northbrook Court

Heating and cooling repair in Northbrook, IL

Furnaces, central air, heat pumps and rooftop units, for Northbrook houses from the 1950s to today, townhomes, condos and the shops and offices on Lake Cook Rd. Family-owned since 1952, with the owner, Rob, still on the calls.

  • Licensed, NATE-certified technicians
  • Family owned since 1952
  • Price agreed before any work starts

Book HVAC service in Northbrook

The person who diagnoses your system is the person who quotes it.

1Your details

2Your job

What's happening?

Price agreed before any work starts.

All services · 24 in 4 groups

Every heating and cooling service we offer in Northbrook

24 services in four groups, from a furnace that won't light to a restaurant's make-up air unit.

Partnered with the Best in the BusinessAmerican Standard

Google reviews · all 204 read

What customers say about value

We don't publish a price book, because the price depends on the fault. Here is what our 204 Google reviews say instead, counted by what reviewers chose to mention.

  • 90name Rob, or say they dealt with the owner directly44%
  • 59mention a fast response, a same-day visit or arriving on time29%
  • 43call the price fair, reasonable or competitive21%
  • 29mention honesty, trust or no pressure to upsell14%

Counted by keyword matching across all 204 Google reviews (export of 31 Aug 2026), so the numbers are approximate. 202 of the 204 are five stars.

Why Chicago homeowners keep calling the same family

4.98· 204 Google reviews
  • Susan NusbaumGoogle review, 2025
    ★★★★★
    I called City & Suburban Heating to have my furnaces cleaned. They told me that Rob was going out of town for a week. I asked he could come before he left, and he came two days after my call. I had forgotten to buy a furnace filter for one of the furnaces, but luckily he had it in his truck. He is very reliable and does a great job.
    Read more
    Two-furnace cleaning
  • Lena HallgrimsdottirGoogle review, 2026
    ★★★★★
    Highly recommend this service. Responsive, reliable, and reasonable pricing. Twice in the past few years, Rob has fixed our aging furnace but this frigid Friday night it kicked the bucket for good. Saturday morning the guys were at our house putting up a new one. Excellent customer service, punctuality, and clear explanations. C&S Heating look for solutions to fix vs selling you unnecessary spare parts.
    Read more
    Furnace replacement
  • Jaeyoon LeeGoogle review, 2025
    ★★★★★
    Very quick response and was clear on the issue and solution! Rob came out to our place to assess the issue on our furnace and fixed it within a same day! He was transparent on the status of the furnace and provided the solution of the issue im having right away. Definitely found a local business who I can rely on that will come back for sure!
    Read more
    Same-day furnace repair
  • Todd FeitlGoogle review, 2026
    ★★★★★
    Great experience. I called them for my second opinion. Fast, friendly and efficient service. I was told my unit is near end of life but the prices I was quoted are great and they will definitely be hearing from me again when it's time. Use this company. Update: had my ac, furnace, and water heater replaced yesterday. Not sure I could be happier.
    Read more
    Second opinion

We'd love to hear about your experience – write a review

  • 5 Star Service
  • Transparent Pricing
  • Financing
  • Certified Professional
  • Top Quality Work

The process · 6 steps

What happens when you call

From the first call to a warm apartment, in six steps

01/ 06

  1. 01

    You call, Rob listens

    Tell us the make of the furnace or condenser and what it's doing. A good description often narrows it down on the phone.

  2. 02

    Pick a time

    We're available 24/7. If your building has rules on access, like elevator or work hours, tell us and we book around them.

  3. 03

    On-site diagnosis

    The technician finds the actual fault: ignition, pressure, refrigerant, airflow or controls.

  4. 04

    Honest price, repair first

    You hear the price before any work. If the unit has years left, we say so and repair it.

  5. 05

    We fix it

    Repairs done on the spot where the part is on the van. Installs are scheduled and quoted separately.

  6. 06

    Good to go

    The system is tested through a full cycle before we leave, and you know what to watch for.

Swipe or use the arrows to see all 6 steps

Scope & price · 6 factors

The same repair costs differently in a 1960s house, a townhome and an office

We don't publish a price book, and we're not going to invent one here. What we can show you is what moves the number.

How we price

  • The person who diagnoses is the person who quotes.
  • You hear the price before any work starts.
  • No flat-rate price book, no commissioned adviser.
  • Where the unit has years left, the quote is for a repair.

"What does a new furnace cost?"

$6,807Chicago median

Median reported value of 81 central-furnace replacement permits in Chicago over 24 months. That's the whole project's construction value, not a quote. Yours depends on the factors below.

Factor · why it changes the work

  1. 01

    Two systems, two floors

    Larger Northbrook houses can run a furnace and AC for each floor, so a repair starts with finding which system has failed.

  2. 02

    Heat pumps in newer homes

    Newer houses and townhomes may run heat pumps, which heat and cool. The repair depends on which half has failed.

  3. 03

    Townhome associations

    In townhome and condo associations, the rules on outdoor units and access shape when and how the work is done.

  4. 04

    Basement or attic units

    Furnaces sit in basements, but some newer houses put a second unit in the attic, which changes the access.

  5. 05

    Stores and offices

    Shops on Lake Cook Rd and offices on Sanders Rd run rooftop units, so roof access and business hours set the work.

  6. 06

    Repair or replace

    The biggest swing of all. Where the unit has years left, we say so.

How to choose · 5 checks

Five questions that sort Northbrook HVAC companies

Ask them of anyone you call, including us.

What to checkWhy it matters in NorthbrookHow to verify itCity & Suburban's answer
01Who diagnoses, and who quotes?If they're different people, ask who owns the outcome. Here it's Rob for both.Ask who comes out, who prices it and who's accountable afterwardsRob does both. 90 of our 204 Google reviews name him or the owner
02Is the technician on commission?Commission on replacements changes what "your furnace is done" means.Ask how the technician is paidNo commission, no flat-rate price book
03Does a permit count mean anything here?Not much. Each suburb sets its own permit rules, and a permit count still mostly measures installs, not repairs.Ask how much of their work is repair0 permits on record, because most of what we do is repair
04What do the newest reviews say?Read the last 20, not the top 5. Look for names and specifics.Read the newest reviews, not the top ones4.98 from 204 Google reviews
05Will they tell you to keep it?Ask if the unit has years left. Our reviewers record hearing "yes".Ask if the unit has years leftRepair first. Our reviewers record hearing "yes"

5 kinds of HVAC company

Who you'll meet, and what limits each of them

Service businesses can't be compared on features. They differ in how they're run, and that decides who answers the phone and how the price is set.

  • Where we fit

    Family-owned, since 1952

    Who you talk to
    The owner, Rob, or someone who works directly with him
    How the price is set
    A price for the actual fault, agreed before any work starts
    Fits best when
    Condo, house, loft and restaurant work where you want one accountable person
  • 02

    National franchise

    Who you talk to
    A call centre, then the technician dispatched
    How the price is set
    Often a flat-rate price book, sometimes with membership plans
    Fits best when
    Standard repairs where speed of dispatch matters most
  • 03

    One-van independent

    Who you talk to
    The owner, who is also the only technician
    How the price is set
    Their own quote, often good value
    Fits best when
    Small jobs that can wait. One person means a January no-heat call can take days
  • 04

    Lead marketplace

    Who you talk to
    A website that passes your request to several contractors
    How the price is set
    Whatever each contractor who calls back quotes
    Fits best when
    You want several quotes fast and don't mind not choosing who calls
  • 05

    Large mechanical contractor

    Who you talk to
    A project manager or estimator
    How the price is set
    Bids against drawings and specifications
    Fits best when
    Tower central plants, base-building systems and new construction

Where we fit, honestly

City & Suburban is a family-owned Chicago company. In Northbrook we're the right call for condo, house, loft and restaurant heating and cooling: repairs, boilers, furnaces, central air and make-up air. Tower central plants and new-build mechanical systems are for the big mechanical contractors, and we'll tell you so.

Start here · 4 building types

What heats and cools your Northbrook building

Find your building and see what heats and cools it.

  • HOUSE

    1950s-70s house

    What heats and cools it

    A furnace with central air, usually in the basement. The condenser sits beside the house.

  • NEWER BUILD

    Newer two-story house

    What heats and cools it

    Often two furnaces and two AC systems, one per floor, sometimes with a unit in the attic.

  • TOWNHOME

    Townhome or condo

    What heats and cools it

    A furnace or heat pump per unit, with central air. The association sets rules for outdoor units.

  • COMMERCIAL

    Shop or office

    What heats and cools it

    Rooftop units for the stores and offices on Lake Cook Rd, Skokie Blvd and Sanders Rd.

Nearby · 5 neighborhoods

Neighborhoods next to Northbrook

We work across Chicago and the suburbs. Each neighborhood has its own page, written for its buildings.

  • Deerfield

    Houses and townhomes to the north, across the line into Lake County.

  • Highland Park

    Older houses and lakefront homes to the north-east, in Lake County.

  • Northfield

    Larger houses on wooded lots to the south-east.

  • Glenview

    Post-war and newer houses to the south, past Techny.

  • Wheeling

    Townhomes, apartments and industrial parks to the west, past the Tri-State.

The permit record, honestly · Northbrook

Why there's no permit chart for Northbrook

Northbrook is outside Chicago, so the City's permit file stops at its border. Here is what we can honestly say about permits there.

Northbrook HVAC permits

The Village of Northbrook issues its own building permits and doesn't publish them as open data, so there's no count to chart for Northbrook.

The honest context

0Permits on record for City & Suburban. We said we'd be honest.

1,539Firms that pull HVAC permits citywide, across 4,888 permits in 24 months.

Outside Chicago, each suburb sets its own permit rules, mostly for installs and replacements. Either way, a permit file measures construction, not service. So when a company waves a permit count at you, ask how much of their work is repair.

FAQs · 5 questions

Northbrook HVAC, answered

Didn't find your question?

Call (773) 238-3838
4.98 204 Google reviews

Since 1952Family owned, licensed, NATE-certified

01Is the furnace in my 1960s house worth repairing, or does it need replacing?

Often it's worth repairing. We diagnose first, and where the furnace has years left, we say so. Replacement is quoted only when the repair stops making sense.

02Do you come out to Northbrook from Chicago?

Yes. Northbrook is on our service area list, about 16 miles north-west of the shop at 1225 N Cleaver St, and Rob runs the calls from there.

03Can you service both systems in a two-zone house?

Yes. Furnace and air conditioning repair and maintenance are on our list of services. Tell us which floor isn't heating or cooling, and we start there.

04Does HVAC work in Northbrook need a permit?

It depends on the job. The Village of Northbrook takes mechanical permit applications for heating and cooling work, mostly installs and replacements. Ask whoever quotes an install who pulls the permit.

05What are your hours?

Our working hours are 24/7. Call (773) 238-3838.

Your next step

No heat, no cooling, or just a question?

Have the make of your furnace or condenser to hand, and tell us what it's doing. If the house has two systems, tell us which floor has the problem.

Have these ready when you call

Call (773) 238-3838
  1. 01The make of your furnace, boiler or condenser, from the label on the unit
  2. 02What it's doing: no heat, no cooling, a noise, a smell, short-cycling
  3. 03In a high-rise: your building's work hours and how to book the freight elevator
  4. 04For a condo: your association's contact if they need a certificate of insurance
  5. 05A photo of the unit's data plate and the thermostat screen
  6. 06For a restaurant: your service hours, so we can work around them