Thornton & Grooms
Farmington Hills, MI HVAC · #1 of 4 · 89+ yrs
Thornton & Grooms as a HVAC provider
Farmington Hills, MI HVAC · #1 of 4 · 89+ yrs
Thornton & Grooms lists heat pump installation, with system installs starting around $8,000.
Full-service HVAC contractor in Farmington Hills, focusing on cooling, heating, and heat pump installs. Lennox Premier Dealer status, per their site, for branded system installations. Emergency Response: same-day service advertised for urgent repairs. Years in business: 85+ years since founding in 1937.
| Signal | Thornton & Grooms | Farmington Hills avg | Delta |
|---|---|---|---|
| Vouched Score | 93/100 | 84/100 | +8 vs avg |
| Google rating | 4.9★ | 4.9★ | matches city average |
| Review volume | 16,040+ | 4,850+ | +11186 vs avg |
| Years in business | 89+ | 56+ | +32 vs avg |
- High Google rating (4.9★ across 16,040+ reviews)
- Long-established (89+ years in business)
- Authorized Lennox Premier Dealer
- Emergency response: same-day
- Financing available
- You need same-day or after-hours service
- You want manufacturer-warranty installation work
- You need to finance the work
- You want a top-rated provider with substantial review history (4.9★, 16,040+ reviews)
- You value a long-tenured local operator (89+ years in business)
| Provider | Vouched | Years | BBB | Yelp | Our picks | |
|---|---|---|---|---|---|---|
Thornton & Grooms (this company) |
93/100 | 4.9★ (16,040+) | 89+ | — | — | Highest Vouched Score |
| 91/100 | 4.9★ (2,740+) | 38+ | — | — | Best for New System Installation Best for Rebates & Tax Credits Best for Free Estimates |
|
| 78/100 | 4.9★ (315+) | 27+ | — | — | Best for Commercial AC Replacement Best NATE-Certified Installer |
|
| 74/100 | 4.8★ (315+) | 72+ | — | — | — |
Company-wide signals
True across every category below.
Thornton & Grooms is a Lennox Premier Dealer with dealer-tier parts access for Lennox systems. The company traces its roots back over 85 years in metro Detroit. Thornton & Grooms lists same-day emergency response for no-cooling calls. Their site notes financing and free in-home consultations for replacements. Local reviews praise technicians' diagnostic clarity and installation follow-through.
Choose them for AC Repair if
- You need AC tune-up & maintenance
Thornton & Grooms lists Lennox Premier Dealer authorization on its site. The company traces its roots to 1937, serving 85+ years. The firm notes free in-home consultations and an instant estimator for system sizing. Local summers in Farmington Hills increase cooling demand during changeouts and rebate paperwork season.
Choose them for AC Replacement if
- You need same-day AC replacement
Furnace repair specialization emphasized across their service pages and emergency listings. Manufacturer partnership: Lennox Premier Dealer noted on site. Farmington Hills winters make reliable no-heat response critical for homes here. Large operation with 85+ years in business serving metropolitan Detroit. Review excerpts cite fast arrivals for urgent heating calls.
Choose them for Furnace Repair if
- You need no-heat / emergency furnace repair
- You need furnace tune-up & maintenance
Heat pump installation specialization is emphasized with ducted air-source offerings. Lennox Premier Dealer status is listed on their site. Thornton & Grooms reports same-day emergency response (verify when scheduling) availability. The company traces roots back over 85+ years locally. Customers describe thorough in-home estimates and clear financing conversations.
Choose them for Heat Pump Installation if
- You need heat pump replacement
Air purification installs include whole-home units and an on-site filter store, per their site. Lennox Premier Dealer status appears on the company website. Thornton & Grooms reports financing available for larger air-quality projects. Founded in 1937, Thornton & Grooms shows 85+ years of local service. The company lists same-day response for urgent HVAC and IAQ calls in Farmington Hills.
Thornton & Grooms lists furnace replacement and installation as a core service. The website lists Lennox Premier Dealer authorization. Thornton & Grooms traces roots back to 1937, about 85+ years in business. The site advertises same-day response for urgent heating needs. The company notes financing options for high-ticket replacements.
Choose them for Furnace Replacement if
- You need same-day furnace replacement
What customers say
Services
- Indoor Air Quality — Indoor air-quality work: high-MERV filtration, UV systems, humidifiers/dehumidifiers, and duct sanitization.
- AC Repair — Diagnostics and repair of central air conditioning systems — refrigerant leaks, capacitor and contactor failures, condenser fan motors, and thermostat issues.
- AC Replacement — Removal and replacement of an aging or failed central A/C — typically condenser, evaporator coil, and refrigerant lines.
- Furnace Repair — Repair of gas and electric furnaces — ignition systems, blower motors, heat exchangers, control boards, and flame sensors.
- HVAC Installation — Full HVAC system installation including indoor and outdoor equipment, ductwork tie-in, and refrigerant work.
- Emergency HVAC Service — After-hours emergency response for no-cool and no-heat calls.
Service area
Guarantees & credentials
- Licensed
Sourced from the provider's own website. We surface these as published; we do not independently verify each license or warranty.
Contact & hours
Frequently asked questions
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What does HVAC service typically cost when working with a Farmington Hills, MI provider like Thornton & Grooms?
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Does Thornton & Grooms do Heat Pump Service in Farmington Hills, MI?
Does Thornton & Grooms do Indoor Air Quality in Farmington Hills, MI?
Does Thornton & Grooms do AC Repair in Farmington Hills, MI?
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Profile last updated July 26, 2026.