No-Heat Diagnosis
Testing for ignition, electrical, gas, airflow, venting, safety-control and thermostat problems.
Furnace & forced-air service
Heat that works when
Michigan gets cold.
EMH Mechanical repairs and replaces residential furnaces and forced-air heating systems. We find the problem, explain the options and check the airflow, venting, controls and ductwork that affect how the furnace runs.
Furnace RepairNo-heat diagnosis
ReplacementProperly sized systems
AirflowDuctwork and blower setup
12-YearTransferable labor warranty*
Start with the system
A furnace does not operate by itself.
The equipment depends on proper airflow, gas pressure, venting, controls and ductwork. If one of those is wrong, even a good furnace can run poorly or shut down.
That is why we look beyond the fault code. Whether the call ends with a repair or a replacement, the recommendation should account for the rest of the heating system and the home it serves.
Residential heating work
From a no-heat call to a complete replacement.
Heating service and installation for existing homes, renovations, additions and new residential systems.
Furnace Repair
Repair of failed motors, controls, ignition components, switches, valves and other serviceable furnace parts.
Furnace Replacement
Removal and replacement planned around the home, ductwork, venting, utilities and heating load.
High-Efficiency Furnaces
Condensing furnace installation with the correct venting, combustion air and condensate drainage.
Blower & Airflow Setup
Blower-speed setup, temperature-rise checks and airflow corrections that help the furnace operate properly.
Thermostats & Controls
Standard and smart thermostats, furnace controls and zoning components matched to the system.
Airflow & Ductwork
Return-air problems, duct restrictions, blower setup and corrections that affect heat delivery.
Venting & Gas Piping
Heating-equipment venting and gas piping when included in the repair or installation scope.
The right system for the space
A furnace should be selected around the house and duct system.
The home layout, insulation, windows, air leakage and Michigan design temperature all affect the heating load. The ductwork must also be able to move the airflow the selected furnace requires.
Replacing the old furnace with the same capacity does not automatically mean the old system was sized correctly. We review the application before recommending equipment.
Discuss Furnace OptionsRepair or replace?
Age is one factor. Condition is the bigger picture.
When the failure is isolated and the system is still worth fixing.
Many furnaces can be repaired safely and reasonably. We look at the failed component, heat exchanger, repair history, parts availability and condition of the rest of the system.
- The heat exchanger is in acceptable condition
- The repair is reasonable for the age of the furnace
- Replacement parts are available
- Airflow and venting problems can be corrected
When the repair puts too much money into a failing system.
A major repair may not make sense when the furnace has other problems or is nearing the end of its useful life. We explain the condition and let the numbers guide the decision.
- The heat exchanger is damaged or unsafe
- Breakdowns are becoming frequent
- The repair cost is high compared with replacement
- The existing system has ongoing comfort problems
Furnace replacement process
Planned before the old equipment comes out.
- 01
Evaluate
We review the existing furnace, home, ductwork, venting, gas, electrical and installation space.
- 02
Build the Options
Equipment and scope are selected around the house, budget and level of performance requested.
- 03
Schedule
We confirm equipment, access, installation timing and any work that must be completed by others.
- 04
Install
The old equipment is removed and the new system, connections, venting and drainage are completed.
- 05
Startup
We operate the furnace, check the installation and provide the applicable warranty information.
Residential installation warranty
12 years of transferable labor coverage.
Qualifying residential heating installations include EMH Mechanical's transferable 12-year labor warranty. If the homeowner sells, the coverage can stay with the home under the warranty terms.
*Equipment registration, maintenance and other warranty terms apply.Factory Authorized
EMH Mechanical installs Bryant heating equipment and can build options around the home, efficiency target and budget.
Local furnace contractor
Serving our five-county Michigan territory.
We provide furnace and forced-air heating service throughout Northern Oakland County, Northern Macomb County, St. Clair County, Genesee County and Lapeer County. Call with the property address so we can confirm availability for your location.
Furnace & heating questions
Before you make the call.
If the furnace is unsafe, smoking, sparking or you smell gas, shut it down, leave the area when necessary and contact the proper emergency service or utility first.
What should I check before calling for a no-heat problem?+
Make sure the thermostat is set to heat, the temperature setting is above the room temperature and the furnace switch and breaker are on. Check the filter if it is easy to reach. If you smell gas, see smoke or the equipment is making an unsafe noise, shut it down and contact the proper emergency service or utility before troubleshooting further.
Do you repair and replace gas furnaces?+
Yes. EMH Mechanical diagnoses and repairs residential gas furnaces and installs replacement systems. We check the equipment, venting, gas piping, electrical, airflow and duct connections that affect safe operation and performance.
What is the difference between an 80% and high-efficiency furnace?+
An 80% furnace typically uses metal venting and sends more heat out through the flue. A high-efficiency condensing furnace captures more of that heat, normally vents through approved plastic piping and produces condensate that must be drained correctly. The right choice depends on the house, existing venting, installation conditions and budget.
How do you determine the correct furnace size?+
Square footage is only one part of the answer. The home layout, insulation, windows, air leakage, ductwork and outdoor design conditions all affect the heating load. Replacing a furnace with the same size does not automatically mean the old system was sized correctly.
When should a furnace be repaired instead of replaced?+
Repair often makes sense when the failure is isolated, the heat exchanger is in good condition, replacement parts are available and the rest of the equipment still has useful life. Age matters, but it is not the only factor. We look at the whole system before making a recommendation.
Can airflow problems affect furnace operation?+
Yes. A plugged filter, undersized return, restricted ductwork, incorrect blower setup or closed registers can cause poor comfort and may make the furnace cycle on a safety limit. We check the equipment and the airflow conditions that can affect it.
What warranty comes with a new residential heating system?+
Qualifying residential installations include EMH Mechanical's transferable 12-year labor warranty. Manufacturer coverage and registration requirements vary by equipment. The final warranty terms are included with the installation paperwork.
Where does EMH Mechanical provide furnace and heating service?+
Our primary territory includes Northern Oakland County, Northern Macomb County, St. Clair County, Genesee County and Lapeer County. Call us with the property address if you are near the edge of that area.
Need heat or planning ahead?
Tell us what the heating system is doing.
Call EMH Mechanical or send the property address, equipment information and a short description of the repair or replacement you need.