Markham Maintenance Co, LLC
HVAC
Serving Ham Lake, MN
From Google Business Profile
4.8
23 Google reviews
Hours
| Monday | 7 AM–2 PM |
| Tuesday | 7 AM–2 PM |
| Wednesday | 7 AM–2 PM |
| Thursday | 7 AM–2 PM |
| Friday | 7 AM–2 PM |
| Saturday | 7 AM–5 PM |
| Sunday | 7 AM–5 PM |
Google categories: HVAC contractor
View on Google Maps →Last checked October 17, 2026.
More from Google Business Profile
Photos on Google: 1
Recent Google reviews (excerpts)
Written by Google users, not by EdgeLocal. EdgeLocal has not verified them and does not show reviewer names.
5 out of 5 stars · May 2024 · Owner replied
Tim is just great. I’ve used him to put in sour new A/C unit as well as the heater in my garage. Tim has always answered my call if I have any issues and has come out in the evenings or weekends, including holidays. My daughter had some…
5 out of 5 stars · Nov 2018
Markham Maintenance did an excellent job installing my mothers air conditioner. Tim was flexible with his schedule, professional, on time, knowledgeable and efficient. I would definitely use him again and feel confident recommending him to…
5 out of 5 stars · Sep 2018
Tim has been my maintenance guy for my rental properties for 5 years. He is very professional and does the job right the first time! He's very trustworthy and will give you a great deal and even accepts Paypal!
The owner replied to 1 of the 5 most recent reviews Google showed.
From Google Business Profile, last checked October 17, 2026.
About hvac contractors in Ham Lake
HVAC contractors install, service and repair furnaces, air conditioners, heat pumps and ductwork. HVAC contractors replace furnaces and central air conditioners, install heat pumps and ductless mini-splits, perform seasonal tune-ups, seal and balance ductwork, add humidifiers and air filtration, and respond to no-heat emergencies.
Typical cost: $5,500–$14,000 for a furnace or central AC replacement. See the full cost guide
Typical U.S. ranges from industry sources (2024–25); not EdgeLocal data. Your quote will vary with scope, materials and location.
Questions to ask this contractor
- Ask for a load calculation: A Manual J calculation sizes equipment for your actual home.
- Compare equipment line by line: Match model numbers, efficiency ratings and warranty terms across quotes.
- Verify mechanical licensing: Iowa and several neighboring states license HVAC/mechanical work.