HVAC Service in Buffalo Grove, IL — From a Shop 2 Miles Away
MMDS is based in Wheeling, about two miles from Buffalo Grove, and we’ve been fixing and replacing furnaces, air conditioners and heat pumps in this area since 2003. When you call, you talk to the people who do the work — not a call center — and most Buffalo Grove service calls are seen the same or next day.
Hours: Monday–Friday, 7:30am–5:00pm. Emergencies: we take calls 24/7 — no heat in January or no cooling during a heat wave gets a call back right away.
What We See in Buffalo Grove Homes
Most of Buffalo Grove was built between the late 1960s and the 1990s, so a lot of the homes we walk into are on their second or third furnace and AC — and some still have ductwork, returns and thermostat wiring from the original build. A few things come up again and again:
- Undersized returns. Many split-levels and two-story homes from the ’70s and ’80s were built with one or two central returns. A new high-efficiency system can’t perform if it can’t breathe, so we check static pressure before recommending equipment size.
- Upstairs bedrooms that run hot. Common in two-story colonials here. Sometimes it’s a balancing or duct issue, not a bigger AC — see our air balancing service.
- Tight utility closets in townhomes. Buffalo Grove has a lot of townhome communities where the furnace sits in a closet or crawlspace. We measure first so the new equipment actually fits and can be serviced.
- Old 80% furnaces paired with 20-year-old ACs. This is the classic “replace both or just one?” question. We’ll tell you honestly which one is actually failing.
HVAC Services for Buffalo Grove Homeowners
- Cold-climate heat pump installation — including dual-fuel setups that use the heat pump most of the year and your furnace below about 35°F.
- Furnace installation and replacement — we recommend 2-stage, variable-speed 80% furnaces paired with an inverter heat pump.
- Furnace and heating repair
- AC installation and replacement
- AC repair
- Maintenance plans and tune-ups
- Indoor air quality, thermostats and duct cleaning
What Replacement Costs in Buffalo Grove
Every house is different, but here are honest ranges so you’re not walking in blind:
- AC replacement: about $4,000–$8,000
- Heat pump replacement: about $6,000–$10,000 before rebates — after the ComEd heat pump discount, it often lands close to the cost of a straight AC
- Furnace replacement: about $4,000–$10,000 depending on size, efficiency, brand and where it’s installed
We install Trane, Carrier, Bosch, Midea, LG, Gree and Goodman. All equipment we sell comes with a 10-year factory parts warranty, with extended labor coverage included or available depending on the package.
A note on efficiency: in a Chicago-area climate, paying extra for anything above about 17 SEER2 rarely pays back. We’d rather put that money into the right size, good ductwork and a quality install.
Rebates for Buffalo Grove Homes
Buffalo Grove is served by ComEd for electricity and North Shore Gas or Nicor Gas for natural gas, depending on your address. ComEd offers instant discounts on qualifying heat pumps, which is why heat pumps have become a realistic option here. The federal 25C tax credit for heat pumps and furnaces ended for equipment installed after December 31, 2025 — if someone is still quoting it to you, ask questions. See our heat pump page for current ComEd discount details.
Maintenance That Actually Cleans Your Equipment
Our one-time tune-up is $150 and includes a real cleaning of your equipment — not a quick look and a sales pitch. If you’d rather just have an inspection, that’s $79: we check how your system is running and recommend any repairs, cleaning or parts. Maintenance plans start at $15/month and cover an AC visit before cooling season and a furnace visit before heating season.
Buffalo Grove HVAC FAQ
How fast can you get to Buffalo Grove?
We’re in Wheeling, a few minutes away. Most service calls are same or next day, and emergencies are answered 24/7.
Should I replace my furnace and AC at the same time?
Not always. If your AC is over 15 years old and your furnace is in good shape, a heat pump can replace the AC and take over most of your heating, so the furnace only runs on the coldest days. We’ll look at both and tell you what actually makes sense.
Do you work on townhomes and condos in Buffalo Grove?
Yes. We regularly work in closet and crawlspace installs and can coordinate with your HOA if the condenser location or a permit needs approval.
Nearby Areas We Serve
Besides Buffalo Grove, we’re regularly in Wheeling, Arlington Heights, Palatine, Lincolnshire, Vernon Hills, Prospect Heights and Deerfield. See the full service area.
Schedule Service in Buffalo Grove
Book online or contact us — we’ll get you on the schedule.