Assessment
We inspect comfort symptoms, equipment condition, airflow, ductwork, controls, drainage, and the spaces the system is expected to serve.
HVAC
Install, replace, service, maintain
It short cycles, never runs long enough to pull humidity out of the air, and leaves you with a cold clammy house and a high bill. We run a load calculation before quoting equipment and inspect the duct system, because installing a larger unit on undersized leaking ductwork moves the problem instead of solving it.
Included in scope
- System replacement and new installation
- Heat pump and gas furnace systems
- Load calculation and equipment sizing
- Ductwork repair, sealing, and redesign
- Diagnostic and emergency repair
- Preventive maintenance agreements
Comfort depends on the equipment, ductwork, airflow, and load working together.
A larger air conditioner is not automatically a better one. Equipment capacity, return air, supply delivery, controls, humidity removal, and the actual house load have to be addressed as one system.
The comfort system
The equipment is one part of the house it has to condition.
01
Load
We assess the house, envelope, orientation, rooms, and comfort concern so equipment is selected around the actual heating and cooling requirement.
02
Airflow
Returns, supplies, duct sizing, leakage, static pressure, and room balance determine whether the equipment can deliver the capacity it is rated for.
03
Equipment
Heat pumps, furnaces, coils, air handlers, and controls are selected to match the calculated load, fuel availability, and operating goal.
04
Commissioning
We verify operation, drainage, airflow, controls, and relevant settings so the system is not simply installed and left to guess.
How an HVAC project runs01 02 03 04
Clear before the system is changed.
Written scope
You see the equipment, load calculation, duct corrections, electrical work, controls, and related details included before permanent work begins.
Execution
Protection, removal, equipment placement, duct and drain corrections, connections, controls, and startup are sequenced before work starts.
Closeout
We review operation, maintenance expectations, relevant documentation, and the system handoff so you know what was installed and why.
System options
Equipment follows the load and the house, not a guess.
Heat pumps
Heat-pump systems provide heating and cooling when the load, ductwork, equipment location, and controls are designed around the house.
Gas furnaces
Gas furnace and air-conditioning combinations are selected around fuel availability, comfort needs, duct capacity, and the required electrical and venting details.
Duct correction
Sealing, repair, resizing, and return-air correction address the pathways that determine how much conditioned air actually reaches each room.
Controls and maintenance
Thermostats, condensate management, filtration, monitoring, and scheduled maintenance support reliable operation after installation.
What determines the price of HVAC work
The number follows the system.
A written HVAC scope is built around the actual load, equipment, airflow path, duct condition, access, and installation requirements. Tonnage alone is not a complete price.
- Load calculation, house condition, room use, and comfort requirements
- Equipment type, efficiency, capacity, fuel, controls, and location
- Return air, supply ducts, sealing, resizing, and static-pressure correction
- Electrical, condensate, pad, line-set, venting, and access requirements
- Existing equipment removal, disposal, and site protection
- Commissioning, documentation, and maintenance requirements
What is included, and what is not
Scope boundaries are part of the work.
Included when required
- Documented equipment, duct, drain, electrical, or airflow conditions identified during the assessment or included as a defined contingency
- System details identified in the written scope
- Jobsite protection, cleanup, equipment handling, and commissioning stated in the proposal
- Relevant startup, setting, and handoff documentation
Needs a written decision
- Conditions hidden until equipment, ductwork, attic, crawlspace, or wall paths are opened
- Related electrical service, structural, insulation, roofing, or building-envelope work outside the stated scope
- Equipment, control, duct, or design changes requested after the scope is accepted
- Separate work that does not belong to the documented HVAC system
HVAC questions
Get answers before you decide.
Why does a bigger air conditioner make a house clammy?
An oversized system can short cycle before it runs long enough to remove humidity. Load, airflow, ductwork, controls, and equipment sizing all affect comfort.
Can you replace equipment without correcting ductwork?
Sometimes, but the duct system needs to be evaluated. Undersized, leaking, poorly returned, or unbalanced ducts can keep new equipment from delivering the comfort it should.
Should I repair or replace my HVAC system?
Age, condition, repair history, refrigerant, performance, airflow, operating cost, and the scope needed to correct underlying issues all affect that decision.
Can I get an exact price without an assessment?
An exact scope needs the equipment, house load, ductwork, access, electrical conditions, drain path, and any concealed conditions to be evaluated.
Free · No obligation
Tell us what the system is doing.
Start the request here. The existing Sentinel HighLevel assessment form will record your details for follow-up.
Get it looked at
before comfort gets worse.
Start with a documented HVAC assessment and a written scope that reflects the actual house and system.